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30a4f2a8 | 1 | /* |
30a4f2a8 | 2 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) |
3 | * AUTHOR: Harvest Derived | |
4 | * | |
2b6662ba | 5 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 6 | * ---------------------------------------------------------- |
30a4f2a8 | 7 | * |
2b6662ba | 8 | * Squid is the result of efforts by numerous individuals from |
9 | * the Internet community; see the CONTRIBUTORS file for full | |
10 | * details. Many organizations have provided support for Squid's | |
11 | * development; see the SPONSORS file for full details. Squid is | |
12 | * Copyrighted (C) 2001 by the Regents of the University of | |
13 | * California; see the COPYRIGHT file for full details. Squid | |
14 | * incorporates software developed and/or copyrighted by other | |
15 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 16 | * |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
9e008dda | 21 | * |
30a4f2a8 | 22 | * This program is distributed in the hope that it will be useful, |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
9e008dda | 26 | * |
30a4f2a8 | 27 | * You should have received a copy of the GNU General Public License |
28 | * along with this program; if not, write to the Free Software | |
cbdec147 | 29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
30a4f2a8 | 30 | */ |
019dd986 | 31 | |
4a83b852 | 32 | /* |
33 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 34 | * have a look into http-anon.c to get more informations. |
4a83b852 | 35 | */ |
36 | ||
582c2af2 | 37 | #include "squid.h" |
9ca29d23 | 38 | #include "acl/FilledChecklist.h" |
582c2af2 | 39 | #include "base64.h" |
655daa06 | 40 | #include "base/AsyncJobCalls.h" |
3d93a84d | 41 | #include "base/TextException.h" |
a011edee | 42 | #include "CachePeer.h" |
314782d4 | 43 | #include "ChunkedCodingParser.h" |
582c2af2 | 44 | #include "client_side.h" |
8d71285d | 45 | #include "comm/Connection.h" |
ec41b64c | 46 | #include "comm/Write.h" |
8b997339 | 47 | #include "err_detail_type.h" |
aa839030 | 48 | #include "errorpage.h" |
fc54b8d2 | 49 | #include "fd.h" |
85bef0a7 | 50 | #include "fde.h" |
67679543 | 51 | #include "globals.h" |
655daa06 | 52 | #include "HttpControlMsg.h" |
582c2af2 | 53 | #include "http.h" |
7ebe76de | 54 | #include "HttpHdrCc.h" |
582c2af2 | 55 | #include "HttpHdrContRange.h" |
b19dd748 | 56 | #include "HttpHdrSc.h" |
57 | #include "HttpHdrScTarget.h" | |
fc54b8d2 | 58 | #include "HttpHeaderTools.h" |
9ca29d23 AJ |
59 | #include "HttpReply.h" |
60 | #include "HttpRequest.h" | |
46f4b111 | 61 | #include "HttpStateFlags.h" |
fc54b8d2 | 62 | #include "log/access_log.h" |
9ca29d23 AJ |
63 | #include "MemBuf.h" |
64 | #include "MemObject.h" | |
b6149797 | 65 | #include "mime_header.h" |
fc54b8d2 | 66 | #include "neighbors.h" |
6ff204fc | 67 | #include "peer_proxy_negotiate_auth.h" |
582c2af2 | 68 | #include "profiler/Profiler.h" |
fc54b8d2 | 69 | #include "refresh.h" |
8d9a8184 | 70 | #include "RefreshPattern.h" |
1fa9b1a7 | 71 | #include "rfc1738.h" |
4d5904f7 | 72 | #include "SquidConfig.h" |
985c86bc | 73 | #include "SquidTime.h" |
e4f1fdae | 74 | #include "StatCounters.h" |
9ca29d23 | 75 | #include "Store.h" |
28204b3b | 76 | #include "StrList.h" |
fc54b8d2 FC |
77 | #include "tools.h" |
78 | #include "URL.h" | |
af0bb8e5 | 79 | |
582c2af2 FC |
80 | #if USE_AUTH |
81 | #include "auth/UserRequest.h" | |
82 | #endif | |
83 | #if USE_DELAY_POOLS | |
84 | #include "DelayPools.h" | |
85 | #endif | |
9ca29d23 | 86 | |
af0bb8e5 | 87 | #define SQUID_ENTER_THROWING_CODE() try { |
88 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
89 | status = true; \ | |
90 | } \ | |
0a8bbeeb AR |
91 | catch (const std::exception &e) { \ |
92 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 93 | status = false; \ |
9e008dda | 94 | } |
e6ccf245 | 95 | |
2afaba07 | 96 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 97 | |
6bf8443a | 98 | static const char *const crlf = "\r\n"; |
4db43fab | 99 | |
f9cece6e | 100 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
e24f13cd | 101 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, |
46f4b111 | 102 | HttpHeader * hdr_out, const int we_do_ranges, const HttpStateFlags &); |
f4698e0b | 103 | //Declared in HttpHeaderTools.cc |
4bf68cfa | 104 | void httpHdrAdd(HttpHeader *heads, HttpRequest *request, const AccessLogEntryPointer &al, HeaderWithAclList &headers_add); |
528b2c61 | 105 | |
dc56a9b1 | 106 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
e1381638 AJ |
107 | lastChunk(0), header_bytes_read(0), reply_bytes_read(0), |
108 | body_bytes_truncated(0), httpChunkDecoder(NULL) | |
2bb867b5 | 109 | { |
110 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 111 | ignoreCacheControl = false; |
112 | surrogateNoStore = false; | |
8d71285d | 113 | serverConnection = fwd->serverConnection(); |
a3d50c30 | 114 | readBuf = new MemBuf; |
9cfb5f4d | 115 | readBuf->init(16*1024, 256*1024); |
a3d50c30 | 116 | |
3ff65596 | 117 | // reset peer response time stats for %<pt |
e24f13cd CT |
118 | request->hier.peer_http_request_sent.tv_sec = 0; |
119 | request->hier.peer_http_request_sent.tv_usec = 0; | |
3ff65596 | 120 | |
5229395c AJ |
121 | if (fwd->serverConnection() != NULL) |
122 | _peer = cbdataReference(fwd->serverConnection()->getPeer()); /* might be NULL */ | |
a3d50c30 | 123 | |
124 | if (_peer) { | |
e857372a | 125 | request->flags.proxying = true; |
a3d50c30 | 126 | /* |
127 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
128 | * We might end up getting the object from somewhere else if, | |
129 | * for example, the request to this neighbor fails. | |
130 | */ | |
131 | if (_peer->options.proxy_only) | |
d88e3c49 | 132 | entry->releaseRequest(); |
a3d50c30 | 133 | |
9a0a18de | 134 | #if USE_DELAY_POOLS |
a3d50c30 | 135 | entry->setNoDelay(_peer->options.no_delay); |
a3d50c30 | 136 | #endif |
a3d50c30 | 137 | } |
138 | ||
139 | /* | |
140 | * register the handler to free HTTP state data when the FD closes | |
141 | */ | |
dc56a9b1 | 142 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
d1c7f781 | 143 | closeHandler = JobCallback(9, 5, Dialer, this, HttpStateData::httpStateConnClosed); |
8d71285d | 144 | comm_add_close_handler(serverConnection->fd, closeHandler); |
2bb867b5 | 145 | } |
b8d8561b | 146 | |
2afaba07 | 147 | HttpStateData::~HttpStateData() |
f5558c95 | 148 | { |
253caccb | 149 | /* |
3b299123 | 150 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 151 | */ |
152 | ||
2afaba07 | 153 | if (!readBuf->isNull()) |
154 | readBuf->clean(); | |
62e76326 | 155 | |
2afaba07 | 156 | delete readBuf; |
157 | ||
9e008dda AJ |
158 | if (httpChunkDecoder) |
159 | delete httpChunkDecoder; | |
af0bb8e5 | 160 | |
5229395c AJ |
161 | cbdataReferenceDone(_peer); |
162 | ||
9cf7de1b | 163 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; " << serverConnection); |
5f8252d2 | 164 | } |
165 | ||
6b679a01 | 166 | const Comm::ConnectionPointer & |
e83cc785 | 167 | HttpStateData::dataConnection() const |
fc68f6b1 | 168 | { |
6b679a01 | 169 | return serverConnection; |
2afaba07 | 170 | } |
8d71285d | 171 | |
9e008dda | 172 | void |
dc56a9b1 | 173 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
174 | { | |
175 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
79628299 | 176 | mustStop("HttpStateData::httpStateConnClosed"); |
f5558c95 | 177 | } |
178 | ||
dc56a9b1 | 179 | void |
180 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 181 | { |
9cf7de1b | 182 | debugs(11, 4, HERE << serverConnection << ": '" << entry->url() << "'" ); |
62e76326 | 183 | |
12158bdc | 184 | if (entry->store_status == STORE_PENDING) { |
913524f0 | 185 | fwd->fail(new ErrorState(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 186 | } |
62e76326 | 187 | |
8d71285d | 188 | serverConnection->close(); |
090089c4 | 189 | } |
190 | ||
f9cece6e | 191 | static void |
192 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
193 | { | |
914b89a2 | 194 | int remove = 0; |
7e3ce7b9 | 195 | int forbidden = 0; |
f9cece6e | 196 | StoreEntry *pe; |
62e76326 | 197 | |
d46a87a8 | 198 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 199 | return; |
200 | ||
f9cece6e | 201 | switch (status) { |
62e76326 | 202 | |
f9cece6e | 203 | case HTTP_OK: |
62e76326 | 204 | |
f9cece6e | 205 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 206 | |
f9cece6e | 207 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 208 | |
f9cece6e | 209 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 210 | |
f9cece6e | 211 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 212 | |
f9cece6e | 213 | case HTTP_GONE: |
62e76326 | 214 | |
7e3ce7b9 | 215 | case HTTP_NOT_FOUND: |
914b89a2 | 216 | remove = 1; |
62e76326 | 217 | |
218 | break; | |
219 | ||
7e3ce7b9 | 220 | case HTTP_FORBIDDEN: |
62e76326 | 221 | |
7e3ce7b9 | 222 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 223 | forbidden = 1; |
224 | ||
225 | break; | |
226 | ||
f9cece6e | 227 | #if WORK_IN_PROGRESS |
62e76326 | 228 | |
c8fd0193 | 229 | case HTTP_UNAUTHORIZED: |
62e76326 | 230 | forbidden = 1; |
231 | ||
232 | break; | |
233 | ||
f9cece6e | 234 | #endif |
62e76326 | 235 | |
f9cece6e | 236 | default: |
7e3ce7b9 | 237 | #if QUESTIONABLE |
62e76326 | 238 | /* |
239 | * Any 2xx response should eject previously cached entities... | |
240 | */ | |
abb929f0 | 241 | |
62e76326 | 242 | if (status >= 200 && status < 300) |
914b89a2 | 243 | remove = 1; |
62e76326 | 244 | |
7e3ce7b9 | 245 | #endif |
62e76326 | 246 | |
247 | break; | |
f9cece6e | 248 | } |
62e76326 | 249 | |
914b89a2 | 250 | if (!remove && !forbidden) |
62e76326 | 251 | return; |
252 | ||
f9cece6e | 253 | assert(e->mem_obj); |
62e76326 | 254 | |
f66a9ef4 | 255 | if (e->mem_obj->request) |
62e76326 | 256 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 257 | else |
62e76326 | 258 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
259 | ||
f66a9ef4 | 260 | if (pe != NULL) { |
62e76326 | 261 | assert(e != pe); |
d9129474 | 262 | #if USE_HTCP |
8dceeee3 | 263 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 264 | #endif |
5f33b71d | 265 | pe->release(); |
0856d155 | 266 | } |
62e76326 | 267 | |
914b89a2 | 268 | /** \par |
7e3ce7b9 | 269 | * Also remove any cached HEAD response in case the object has |
270 | * changed. | |
271 | */ | |
f66a9ef4 | 272 | if (e->mem_obj->request) |
c2a7cefd | 273 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, Http::METHOD_HEAD); |
f66a9ef4 | 274 | else |
c2a7cefd | 275 | pe = storeGetPublic(e->mem_obj->url, Http::METHOD_HEAD); |
62e76326 | 276 | |
f66a9ef4 | 277 | if (pe != NULL) { |
62e76326 | 278 | assert(e != pe); |
d9129474 | 279 | #if USE_HTCP |
c2a7cefd | 280 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(Http::METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 281 | #endif |
5f33b71d | 282 | pe->release(); |
7e3ce7b9 | 283 | } |
f9cece6e | 284 | } |
285 | ||
43ae1d95 | 286 | void |
287 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
288 | { | |
45e5102d | 289 | if (request->flags.accelerated && reply->surrogate_control) { |
45a58345 | 290 | HttpHdrScTarget *sctusable = reply->surrogate_control->getMergedTarget(Config.Accel.surrogate_id); |
43ae1d95 | 291 | |
292 | if (sctusable) { | |
45a58345 | 293 | if (sctusable->noStore() || |
43ae1d95 | 294 | (Config.onoff.surrogate_is_remote |
45a58345 | 295 | && sctusable->noStoreRemote())) { |
43ae1d95 | 296 | surrogateNoStore = true; |
5ed72359 | 297 | entry->makePrivate(); |
43ae1d95 | 298 | } |
299 | ||
300 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
301 | * accelerated request or not... | |
45cca89d | 302 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 303 | */ |
45a58345 FC |
304 | if (sctusable->hasMaxAge()) { |
305 | if (sctusable->maxAge() < sctusable->maxStale()) | |
306 | reply->expires = reply->date + sctusable->maxAge(); | |
43ae1d95 | 307 | else |
45a58345 | 308 | reply->expires = reply->date + sctusable->maxStale(); |
43ae1d95 | 309 | |
310 | /* And update the timestamps */ | |
3900307b | 311 | entry->timestampsSet(); |
43ae1d95 | 312 | } |
313 | ||
314 | /* We ignore cache-control directives as per the Surrogate specification */ | |
315 | ignoreCacheControl = true; | |
316 | ||
45a58345 | 317 | delete sctusable; |
43ae1d95 | 318 | } |
319 | } | |
43ae1d95 | 320 | } |
321 | ||
924f73bc | 322 | int |
323 | HttpStateData::cacheableReply() | |
c54e9052 | 324 | { |
585ab260 | 325 | HttpReply const *rep = finalReply(); |
528b2c61 | 326 | HttpHeader const *hdr = &rep->header; |
c68e9c6b | 327 | const char *v; |
626096be | 328 | #if USE_HTTP_VIOLATIONS |
62e76326 | 329 | |
8d9a8184 | 330 | const RefreshPattern *R = NULL; |
b6445726 | 331 | |
346be6ad | 332 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 333 | * and then checks if the specified flag is set. The main purpose |
626096be | 334 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 335 | * condition |
336 | */ | |
337 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 338 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
339 | (R && R->flags.flag)) | |
b445957e | 340 | #else |
341 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 342 | #endif |
43ae1d95 | 343 | |
2b59002c AJ |
344 | // Check for Surrogate/1.0 protocol conditions |
345 | // NP: reverse-proxy traffic our parent server has instructed us never to cache | |
346 | if (surrogateNoStore) { | |
347 | debugs(22, 3, HERE << "NO because Surrogate-Control:no-store"); | |
62e76326 | 348 | return 0; |
2b59002c | 349 | } |
62e76326 | 350 | |
2b59002c AJ |
351 | // RFC 2616: HTTP/1.1 Cache-Control conditions |
352 | if (!ignoreCacheControl) { | |
353 | // XXX: check to see if the request headers alone were enough to prevent caching earlier | |
354 | // (ie no-store request header) no need to check those all again here if so. | |
355 | // for now we are not reliably doing that so we waste CPU re-checking request CC | |
8466a4af | 356 | |
2b59002c AJ |
357 | // RFC 2616 section 14.9.2 - MUST NOT cache any response with request CC:no-store |
358 | if (request && request->cache_control && request->cache_control->noStore() && | |
359 | !REFRESH_OVERRIDE(ignore_no_store)) { | |
360 | debugs(22, 3, HERE << "NO because client request Cache-Control:no-store"); | |
361 | return 0; | |
38f9c547 | 362 | } |
363 | ||
2b59002c AJ |
364 | // NP: request CC:no-cache only means cache READ is forbidden. STORE is permitted. |
365 | // NP: request CC:private is undefined. We ignore. | |
366 | // NP: other request CC flags are limiters on HIT/MISS. We don't care about here. | |
367 | ||
368 | // RFC 2616 section 14.9.2 - MUST NOT cache any response with CC:no-store | |
369 | if (rep->cache_control && rep->cache_control->noStore() && | |
370 | !REFRESH_OVERRIDE(ignore_no_store)) { | |
371 | debugs(22, 3, HERE << "NO because server reply Cache-Control:no-store"); | |
372 | return 0; | |
38f9c547 | 373 | } |
374 | ||
2b59002c AJ |
375 | // RFC 2616 section 14.9.1 - MUST NOT cache any response with CC:private in a shared cache like Squid. |
376 | // TODO: add a shared/private cache configuration possibility. | |
377 | if (rep->cache_control && | |
378 | rep->cache_control->Private() && | |
379 | !REFRESH_OVERRIDE(ignore_private)) { | |
380 | debugs(22, 3, HERE << "NO because server reply Cache-Control:private"); | |
381 | return 0; | |
38f9c547 | 382 | } |
2b59002c | 383 | // NP: being conservative; CC:private overrides CC:public when both are present in a response. |
43ae1d95 | 384 | |
2b59002c AJ |
385 | } |
386 | // RFC 2068, sec 14.9.4 - MUST NOT cache any response with Authentication UNLESS certain CC controls are present | |
387 | // allow HTTP violations to IGNORE those controls (ie re-block caching Auth) | |
388 | if (request && (request->flags.auth || request->flags.authSent) && !REFRESH_OVERRIDE(ignore_auth)) { | |
389 | if (!rep->cache_control) { | |
390 | debugs(22, 3, HERE << "NO because Authenticated and server reply missing Cache-Control"); | |
391 | return 0; | |
392 | } | |
62e76326 | 393 | |
2b59002c AJ |
394 | if (ignoreCacheControl) { |
395 | debugs(22, 3, HERE << "NO because Authenticated and ignoring Cache-Control"); | |
396 | return 0; | |
38f9c547 | 397 | } |
62e76326 | 398 | |
2b59002c | 399 | bool mayStore = false; |
8f9343d0 | 400 | // HTTPbis pt6 section 3.2: a response CC:public is present |
2b59002c AJ |
401 | if (rep->cache_control->Public()) { |
402 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:public"); | |
403 | mayStore = true; | |
404 | ||
8f9343d0 | 405 | // HTTPbis pt6 section 3.2: a response CC:must-revalidate is present |
2b59002c AJ |
406 | } else if (rep->cache_control->mustRevalidate() && !REFRESH_OVERRIDE(ignore_must_revalidate)) { |
407 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:public"); | |
408 | mayStore = true; | |
409 | ||
8f9343d0 | 410 | #if USE_HTTP_VIOLATIONS |
2b59002c | 411 | // NP: given the must-revalidate exception we should also be able to exempt no-cache. |
8f9343d0 AJ |
412 | // HTTPbis WG verdict on this is that it is omitted from the spec due to being 'unexpected' by |
413 | // some. The caching+revalidate is not exactly unsafe though with Squids interpretation of no-cache | |
414 | // as equivalent to must-revalidate in the reply. | |
415 | } else if (rep->cache_control->noCache() && !REFRESH_OVERRIDE(ignore_must_revalidate)) { | |
416 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:no-cache (equivalent to must-revalidate)"); | |
2b59002c AJ |
417 | mayStore = true; |
418 | #endif | |
419 | ||
8f9343d0 | 420 | // HTTPbis pt6 section 3.2: a response CC:s-maxage is present |
2b59002c AJ |
421 | } else if (rep->cache_control->sMaxAge()) { |
422 | debugs(22, 3, HERE << " Authenticated but server reply Cache-Control:s-maxage"); | |
423 | mayStore = true; | |
424 | } | |
62e76326 | 425 | |
2b59002c AJ |
426 | if (!mayStore) { |
427 | debugs(22, 3, HERE << "NO because Authenticated transaction"); | |
428 | return 0; | |
38f9c547 | 429 | } |
2b59002c AJ |
430 | |
431 | // NP: response CC:no-cache is equivalent to CC:must-revalidate,max-age=0. We MAY cache, and do so. | |
432 | // NP: other request CC flags are limiters on HIT/MISS/REFRESH. We don't care about here. | |
c68e9c6b | 433 | } |
62e76326 | 434 | |
2b59002c | 435 | /* HACK: The "multipart/x-mixed-replace" content type is used for |
c68e9c6b | 436 | * continuous push replies. These are generally dynamic and |
437 | * probably should not be cachable | |
438 | */ | |
a9925b40 | 439 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
2b59002c AJ |
440 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) { |
441 | debugs(22, 3, HERE << "NO because Content-Type:multipart/x-mixed-replace"); | |
62e76326 | 442 | return 0; |
2b59002c | 443 | } |
62e76326 | 444 | |
585ab260 | 445 | switch (rep->sline.status) { |
62e76326 | 446 | /* Responses that are cacheable */ |
447 | ||
19a04dac | 448 | case HTTP_OK: |
62e76326 | 449 | |
19a04dac | 450 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 451 | |
19a04dac | 452 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 453 | |
19a04dac | 454 | case HTTP_MOVED_PERMANENTLY: |
6bc67152 | 455 | case HTTP_PERMANENT_REDIRECT: |
62e76326 | 456 | |
19a04dac | 457 | case HTTP_GONE: |
62e76326 | 458 | /* |
459 | * Don't cache objects that need to be refreshed on next request, | |
460 | * unless we know how to refresh it. | |
461 | */ | |
462 | ||
3d8b6ba4 | 463 | if (!refreshIsCachable(entry) && !REFRESH_OVERRIDE(store_stale)) { |
2b59002c | 464 | debugs(22, 3, "NO because refreshIsCachable() returned non-cacheable.."); |
62e76326 | 465 | return 0; |
2b59002c AJ |
466 | } else { |
467 | debugs(22, 3, HERE << "YES because HTTP status " << rep->sline.status); | |
62e76326 | 468 | return 1; |
2b59002c | 469 | } |
62e76326 | 470 | /* NOTREACHED */ |
471 | break; | |
472 | ||
473 | /* Responses that only are cacheable if the server says so */ | |
474 | ||
19a04dac | 475 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 476 | case HTTP_TEMPORARY_REDIRECT: |
2b59002c AJ |
477 | if (rep->date <= 0) { |
478 | debugs(22, 3, HERE << "NO because HTTP status " << rep->sline.status << " and Date missing/invalid"); | |
479 | return 0; | |
480 | } | |
481 | if (rep->expires > rep->date) { | |
482 | debugs(22, 3, HERE << "YES because HTTP status " << rep->sline.status << " and Expires > Date"); | |
62e76326 | 483 | return 1; |
2b59002c AJ |
484 | } else { |
485 | debugs(22, 3, HERE << "NO because HTTP status " << rep->sline.status << " and Expires <= Date"); | |
62e76326 | 486 | return 0; |
2b59002c | 487 | } |
62e76326 | 488 | /* NOTREACHED */ |
489 | break; | |
490 | ||
491 | /* Errors can be negatively cached */ | |
492 | ||
19a04dac | 493 | case HTTP_NO_CONTENT: |
62e76326 | 494 | |
19a04dac | 495 | case HTTP_USE_PROXY: |
62e76326 | 496 | |
19a04dac | 497 | case HTTP_BAD_REQUEST: |
62e76326 | 498 | |
19a04dac | 499 | case HTTP_FORBIDDEN: |
62e76326 | 500 | |
19a04dac | 501 | case HTTP_NOT_FOUND: |
62e76326 | 502 | |
19a04dac | 503 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 504 | |
19a04dac | 505 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 506 | |
19a04dac | 507 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 508 | |
19a04dac | 509 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 510 | |
19a04dac | 511 | case HTTP_BAD_GATEWAY: |
62e76326 | 512 | |
19a04dac | 513 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 514 | |
19a04dac | 515 | case HTTP_GATEWAY_TIMEOUT: |
2b59002c | 516 | debugs(22, 3, HERE << "MAYBE because HTTP status " << rep->sline.status); |
62e76326 | 517 | return -1; |
518 | ||
519 | /* NOTREACHED */ | |
520 | break; | |
521 | ||
522 | /* Some responses can never be cached */ | |
523 | ||
0cdcddb9 | 524 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 525 | |
19a04dac | 526 | case HTTP_SEE_OTHER: |
62e76326 | 527 | |
19a04dac | 528 | case HTTP_NOT_MODIFIED: |
62e76326 | 529 | |
19a04dac | 530 | case HTTP_UNAUTHORIZED: |
62e76326 | 531 | |
19a04dac | 532 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 533 | |
0cdcddb9 | 534 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 535 | |
536 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 537 | |
538 | case HTTP_PAYMENT_REQUIRED: | |
539 | case HTTP_NOT_ACCEPTABLE: | |
540 | case HTTP_REQUEST_TIMEOUT: | |
541 | case HTTP_CONFLICT: | |
542 | case HTTP_LENGTH_REQUIRED: | |
543 | case HTTP_PRECONDITION_FAILED: | |
544 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
545 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
546 | case HTTP_UNPROCESSABLE_ENTITY: | |
547 | case HTTP_LOCKED: | |
548 | case HTTP_FAILED_DEPENDENCY: | |
549 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 550 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
551 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 552 | |
2b59002c | 553 | debugs(22, 3, HERE << "NO because HTTP status " << rep->sline.status); |
62e76326 | 554 | return 0; |
555 | ||
41217979 AJ |
556 | default: |
557 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
2b59002c | 558 | debugs (11, 3, HERE << "NO because unknown HTTP status code " << rep->sline.status); |
62e76326 | 559 | return 0; |
560 | ||
561 | /* NOTREACHED */ | |
562 | break; | |
c54e9052 | 563 | } |
62e76326 | 564 | |
79d39a72 | 565 | /* NOTREACHED */ |
c54e9052 | 566 | } |
090089c4 | 567 | |
f66a9ef4 | 568 | /* |
9e008dda | 569 | * For Vary, store the relevant request headers as |
f66a9ef4 | 570 | * virtual headers in the reply |
571 | * Returns false if the variance cannot be stored | |
572 | */ | |
573 | const char * | |
190154cf | 574 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 575 | { |
30abd221 | 576 | String vary, hdr; |
f66a9ef4 | 577 | const char *pos = NULL; |
578 | const char *item; | |
579 | const char *value; | |
580 | int ilen; | |
30abd221 | 581 | static String vstr; |
f66a9ef4 | 582 | |
30abd221 | 583 | vstr.clean(); |
a9925b40 | 584 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 585 | |
f66a9ef4 | 586 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 587 | char *name = (char *)xmalloc(ilen + 1); |
588 | xstrncpy(name, item, ilen + 1); | |
589 | Tolower(name); | |
9776e3cc | 590 | |
591 | if (strcmp(name, "*") == 0) { | |
592 | /* Can not handle "Vary: *" withtout ETag support */ | |
593 | safe_free(name); | |
30abd221 | 594 | vstr.clean(); |
9776e3cc | 595 | break; |
596 | } | |
597 | ||
62e76326 | 598 | strListAdd(&vstr, name, ','); |
a9925b40 | 599 | hdr = request->header.getByName(name); |
62e76326 | 600 | safe_free(name); |
d53b3f6d | 601 | value = hdr.termedBuf(); |
62e76326 | 602 | |
603 | if (value) { | |
604 | value = rfc1738_escape_part(value); | |
605 | vstr.append("=\"", 2); | |
606 | vstr.append(value); | |
607 | vstr.append("\"", 1); | |
608 | } | |
609 | ||
30abd221 | 610 | hdr.clean(); |
f66a9ef4 | 611 | } |
62e76326 | 612 | |
30abd221 | 613 | vary.clean(); |
f66a9ef4 | 614 | #if X_ACCELERATOR_VARY |
62e76326 | 615 | |
aa38be4a | 616 | pos = NULL; |
a9925b40 | 617 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 618 | |
f66a9ef4 | 619 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 620 | char *name = (char *)xmalloc(ilen + 1); |
621 | xstrncpy(name, item, ilen + 1); | |
622 | Tolower(name); | |
623 | strListAdd(&vstr, name, ','); | |
a9925b40 | 624 | hdr = request->header.getByName(name); |
62e76326 | 625 | safe_free(name); |
d53b3f6d | 626 | value = hdr.termedBuf(); |
62e76326 | 627 | |
628 | if (value) { | |
629 | value = rfc1738_escape_part(value); | |
630 | vstr.append("=\"", 2); | |
631 | vstr.append(value); | |
632 | vstr.append("\"", 1); | |
633 | } | |
634 | ||
30abd221 | 635 | hdr.clean(); |
f66a9ef4 | 636 | } |
62e76326 | 637 | |
30abd221 | 638 | vary.clean(); |
f66a9ef4 | 639 | #endif |
62e76326 | 640 | |
d53b3f6d FC |
641 | debugs(11, 3, "httpMakeVaryMark: " << vstr); |
642 | return vstr.termedBuf(); | |
f66a9ef4 | 643 | } |
644 | ||
2afaba07 | 645 | void |
646 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
647 | { | |
648 | if (flags.keepalive) | |
649 | if (_peer) | |
95dc7ff4 | 650 | ++ _peer->stats.n_keepalives_sent; |
2afaba07 | 651 | |
652 | if (reply->keep_alive) { | |
653 | if (_peer) | |
95dc7ff4 | 654 | ++ _peer->stats.n_keepalives_recv; |
2afaba07 | 655 | |
af6a12ee AJ |
656 | if (Config.onoff.detect_broken_server_pconns |
657 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
e0236918 | 658 | debugs(11, DBG_IMPORTANT, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
bf8fe701 | 659 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); |
46f4b111 | 660 | flags.keepalive_broken = true; |
2afaba07 | 661 | } |
662 | } | |
663 | } | |
664 | ||
665 | void | |
666 | HttpStateData::checkDateSkew(HttpReply *reply) | |
667 | { | |
668 | if (reply->date > -1 && !_peer) { | |
669 | int skew = abs((int)(reply->date - squid_curtime)); | |
670 | ||
671 | if (skew > 86400) | |
cc192b50 | 672 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 673 | } |
674 | } | |
675 | ||
073ba374 | 676 | /** |
4eb368f9 | 677 | * This creates the error page itself.. its likely |
678 | * that the forward ported reply header max size patch | |
679 | * generates non http conformant error pages - in which | |
680 | * case the errors where should be 'BAD_GATEWAY' etc | |
681 | */ | |
b8d8561b | 682 | void |
2afaba07 | 683 | HttpStateData::processReplyHeader() |
f5558c95 | 684 | { |
073ba374 | 685 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 AJ |
686 | |
687 | /* NP: all exit points to this function MUST call ctx_exit(ctx) */ | |
82384411 | 688 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
859f1666 | 689 | |
bf8fe701 | 690 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 691 | |
1a98175f | 692 | assert(!flags.headers_parsed); |
62e76326 | 693 | |
859f1666 AJ |
694 | if (!readBuf->hasContent()) { |
695 | ctx_exit(ctx); | |
b73a07d6 | 696 | return; |
859f1666 | 697 | } |
b73a07d6 | 698 | |
2afaba07 | 699 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 700 | |
585ab260 | 701 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 702 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 703 | |
e77d7ef0 | 704 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0 && strncmp(readBuf->content(), "ICY", 3) != 0) { |
9e008dda AJ |
705 | MemBuf *mb; |
706 | HttpReply *tmprep = new HttpReply; | |
11992b6f | 707 | tmprep->setHeaders(HTTP_OK, "Gatewaying", NULL, -1, -1, -1); |
9e008dda AJ |
708 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); |
709 | mb = tmprep->pack(); | |
710 | newrep->parse(mb, eof, &error); | |
ddbe383d | 711 | delete mb; |
9e008dda AJ |
712 | delete tmprep; |
713 | } else { | |
714 | if (!parsed && error > 0) { // unrecoverable parsing error | |
715 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
46f4b111 | 716 | flags.headers_parsed = true; |
871c031f | 717 | newrep->sline.version = HttpVersion(1,1); |
9e008dda AJ |
718 | newrep->sline.status = error; |
719 | HttpReply *vrep = setVirginReply(newrep); | |
720 | entry->replaceHttpReply(vrep); | |
721 | ctx_exit(ctx); | |
722 | return; | |
723 | } | |
724 | ||
725 | if (!parsed) { // need more data | |
726 | assert(!error); | |
727 | assert(!eof); | |
728 | delete newrep; | |
729 | ctx_exit(ctx); | |
730 | return; | |
731 | } | |
732 | ||
1ce34ddd AJ |
733 | debugs(11, 2, "HTTP Server " << serverConnection); |
734 | debugs(11, 2, "HTTP Server REPLY:\n---------\n" << readBuf->content() << "\n----------"); | |
9e008dda AJ |
735 | |
736 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
737 | readBuf->consume(header_bytes_read); | |
f5558c95 | 738 | } |
62e76326 | 739 | |
c679653d | 740 | newrep->removeStaleWarnings(); |
3d9e71e6 | 741 | |
0c3d3f65 | 742 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->sline.status >= 100 && newrep->sline.status < 200) { |
655daa06 | 743 | handle1xx(newrep); |
3d9e71e6 | 744 | ctx_exit(ctx); |
3d9e71e6 AJ |
745 | return; |
746 | } | |
747 | ||
46f4b111 | 748 | flags.chunked = false; |
0c3d3f65 | 749 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->header.chunked()) { |
46f4b111 | 750 | flags.chunked = true; |
9e008dda | 751 | httpChunkDecoder = new ChunkedCodingParser; |
af0bb8e5 | 752 | } |
753 | ||
9e008dda | 754 | if (!peerSupportsConnectionPinning()) |
e857372a | 755 | request->flags.connectionAuthDisabled = true; |
d67acb4e | 756 | |
585ab260 | 757 | HttpReply *vrep = setVirginReply(newrep); |
46f4b111 | 758 | flags.headers_parsed = true; |
6965ab28 | 759 | |
585ab260 | 760 | keepaliveAccounting(vrep); |
47ac2ebe | 761 | |
585ab260 | 762 | checkDateSkew(vrep); |
47ac2ebe | 763 | |
585ab260 | 764 | processSurrogateControl (vrep); |
528b2c61 | 765 | |
e24f13cd | 766 | request->hier.peer_reply_status = newrep->sline.status; |
3ff65596 | 767 | |
2afaba07 | 768 | ctx_exit(ctx); |
769 | } | |
770 | ||
655daa06 AR |
771 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
772 | void | |
773 | HttpStateData::handle1xx(HttpReply *reply) | |
774 | { | |
b248c2a3 | 775 | HttpReply::Pointer msg(reply); // will destroy reply if unused |
655daa06 AR |
776 | |
777 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
778 | Must(!flags.handling1xx); | |
779 | flags.handling1xx = true; | |
780 | ||
e24f13cd | 781 | if (!request->canHandle1xx()) { |
655daa06 AR |
782 | debugs(11, 2, HERE << "ignoring client-unsupported 1xx"); |
783 | proceedAfter1xx(); | |
784 | return; | |
785 | } | |
786 | ||
787 | #if USE_HTTP_VIOLATIONS | |
788 | // check whether the 1xx response forwarding is allowed by squid.conf | |
789 | if (Config.accessList.reply) { | |
e11513e1 | 790 | ACLFilledChecklist ch(Config.accessList.reply, originalRequest(), NULL); |
b248c2a3 AJ |
791 | ch.reply = reply; |
792 | HTTPMSGLOCK(ch.reply); | |
e0f7153c | 793 | if (ch.fastCheck() != ACCESS_ALLOWED) { // TODO: support slow lookups? |
655daa06 AR |
794 | debugs(11, 3, HERE << "ignoring denied 1xx"); |
795 | proceedAfter1xx(); | |
796 | return; | |
de48b288 | 797 | } |
655daa06 AR |
798 | } |
799 | #endif // USE_HTTP_VIOLATIONS | |
800 | ||
801 | debugs(11, 2, HERE << "forwarding 1xx to client"); | |
802 | ||
803 | // the Sink will use this to call us back after writing 1xx to the client | |
804 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
805 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 806 | HttpStateData::proceedAfter1xx); |
e24f13cd | 807 | CallJobHere1(11, 4, request->clientConnectionManager, ConnStateData, |
655daa06 AR |
808 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); |
809 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
810 | // will terminate due to an aborted store entry or another similar error. | |
811 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
812 | // for similar reasons without a 1xx response. | |
813 | } | |
814 | ||
815 | /// restores state and resumes processing after 1xx is ignored or forwarded | |
816 | void | |
817 | HttpStateData::proceedAfter1xx() | |
818 | { | |
819 | Must(flags.handling1xx); | |
820 | ||
821 | debugs(11, 2, HERE << "consuming " << header_bytes_read << | |
de48b288 | 822 | " header and " << reply_bytes_read << " body bytes read after 1xx"); |
655daa06 AR |
823 | header_bytes_read = 0; |
824 | reply_bytes_read = 0; | |
825 | ||
826 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); | |
827 | } | |
828 | ||
d67acb4e AJ |
829 | /** |
830 | * returns true if the peer can support connection pinning | |
831 | */ | |
832 | bool HttpStateData::peerSupportsConnectionPinning() const | |
833 | { | |
834 | const HttpReply *rep = entry->mem_obj->getReply(); | |
835 | const HttpHeader *hdr = &rep->header; | |
836 | bool rc; | |
837 | String header; | |
838 | ||
839 | if (!_peer) | |
9e008dda AJ |
840 | return true; |
841 | ||
842 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
843 | connections) return false |
844 | */ | |
845 | if (!_peer->connection_auth) | |
9e008dda | 846 | return false; |
d67acb4e | 847 | |
9e008dda | 848 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
849 | is not unauthorized, so the related connection can be pinned |
850 | */ | |
851 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
852 | return true; |
853 | ||
854 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
855 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
856 | connections |
857 | */ | |
858 | if (_peer->connection_auth == 1) | |
9e008dda | 859 | return true; |
d67acb4e | 860 | |
9e008dda AJ |
861 | /*At this point peer has configured with "connection-auth=auto" |
862 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
863 | to allow pinned connections or not |
864 | */ | |
865 | ||
9e008dda | 866 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
867 | pinning (squid 2.6 behaviour) |
868 | */ | |
869 | if (_peer->options.originserver) | |
9e008dda | 870 | return true; |
d67acb4e AJ |
871 | |
872 | /*if the connections it is already pinned it is OK*/ | |
45e5102d | 873 | if (request->flags.pinned) |
9e008dda AJ |
874 | return true; |
875 | ||
876 | /*Allow pinned connections only if the Proxy-support header exists in | |
877 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
878 | which means that the peer supports connection pinning. |
879 | */ | |
880 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 881 | return false; |
d67acb4e AJ |
882 | |
883 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
884 | /* XXX This ought to be done in a case-insensitive manner */ | |
d53b3f6d | 885 | rc = (strstr(header.termedBuf(), "Session-Based-Authentication") != NULL); |
d67acb4e AJ |
886 | |
887 | return rc; | |
888 | } | |
889 | ||
5f8252d2 | 890 | // Called when we parsed (and possibly adapted) the headers but |
891 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 892 | void |
893 | HttpStateData::haveParsedReplyHeaders() | |
894 | { | |
c1520b67 AJ |
895 | ServerStateData::haveParsedReplyHeaders(); |
896 | ||
2afaba07 | 897 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 898 | HttpReply *rep = finalReply(); |
2afaba07 | 899 | |
585ab260 | 900 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
901 | rep->content_range) | |
902 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 903 | |
3900307b | 904 | entry->timestampsSet(); |
62e76326 | 905 | |
9bc73deb | 906 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 907 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 908 | |
9bc73deb | 909 | if (neighbors_do_private_keys) |
585ab260 | 910 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 911 | |
585ab260 | 912 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 913 | #if X_ACCELERATOR_VARY |
585ab260 | 914 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 915 | #endif |
4b44c907 | 916 | ) { |
e24f13cd | 917 | const char *vary = httpMakeVaryMark(request, rep); |
4b44c907 | 918 | |
919 | if (!vary) { | |
5ed72359 | 920 | entry->makePrivate(); |
d7d3253b AJ |
921 | if (!fwd->reforwardableStatus(rep->sline.status)) |
922 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); | |
4b44c907 | 923 | goto no_cache; |
62e76326 | 924 | } |
925 | ||
4b44c907 | 926 | entry->mem_obj->vary_headers = xstrdup(vary); |
927 | } | |
928 | ||
2afaba07 | 929 | /* |
930 | * If its not a reply that we will re-forward, then | |
931 | * allow the client to get it. | |
932 | */ | |
585ab260 | 933 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 934 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
935 | ||
4b44c907 | 936 | switch (cacheableReply()) { |
937 | ||
938 | case 1: | |
5ed72359 | 939 | entry->makePublic(); |
62e76326 | 940 | break; |
941 | ||
9bc73deb | 942 | case 0: |
5ed72359 | 943 | entry->makePrivate(); |
62e76326 | 944 | break; |
945 | ||
9bc73deb | 946 | case -1: |
4b44c907 | 947 | |
626096be | 948 | #if USE_HTTP_VIOLATIONS |
4b44c907 | 949 | if (Config.negativeTtl > 0) |
5ed72359 | 950 | entry->cacheNegatively(); |
4b44c907 | 951 | else |
ac9cc053 | 952 | #endif |
5ed72359 | 953 | entry->makePrivate(); |
4b44c907 | 954 | |
62e76326 | 955 | break; |
956 | ||
9bc73deb | 957 | default: |
62e76326 | 958 | assert(0); |
4b44c907 | 959 | |
62e76326 | 960 | break; |
9bc73deb | 961 | } |
62e76326 | 962 | |
4b44c907 | 963 | no_cache: |
964 | ||
2b59002c AJ |
965 | if (!ignoreCacheControl) { |
966 | if (rep->cache_control) { | |
967 | if (rep->cache_control->proxyRevalidate() || | |
968 | rep->cache_control->mustRevalidate() || | |
969 | rep->cache_control->noCache() || | |
970 | rep->cache_control->hasSMaxAge()) | |
971 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); | |
972 | } | |
973 | #if USE_HTTP_VIOLATIONS // response header Pragma::no-cache is undefined in HTTP | |
974 | else { | |
975 | // Expensive calculation. So only do it IF the CC: header is not present. | |
976 | ||
977 | /* HACK: Pragma: no-cache in _replies_ is not documented in HTTP, | |
978 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
979 | if (rep->header.has(HDR_PRAGMA) && | |
980 | rep->header.hasListMember(HDR_PRAGMA,"no-cache",',')) | |
981 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); | |
982 | } | |
983 | #endif | |
9bc73deb | 984 | } |
62e76326 | 985 | |
c3609322 | 986 | #if HEADERS_LOG |
585ab260 | 987 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 988 | |
c3609322 | 989 | #endif |
5f8252d2 | 990 | |
991 | ctx_exit(ctx); | |
f5558c95 | 992 | } |
993 | ||
528b2c61 | 994 | HttpStateData::ConnectionStatus |
995 | HttpStateData::statusIfComplete() const | |
603a02fd | 996 | { |
585ab260 | 997 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
998 | /** \par |
999 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 1000 | |
2afaba07 | 1001 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 1002 | return COMPLETE_NONPERSISTENT_MSG; |
1003 | ||
073ba374 AJ |
1004 | /** \par |
1005 | * If we didn't send a keep-alive request header, then this | |
978e455f | 1006 | * can not be a persistent connection. |
1007 | */ | |
528b2c61 | 1008 | if (!flags.keepalive) |
62e76326 | 1009 | return COMPLETE_NONPERSISTENT_MSG; |
1010 | ||
073ba374 | 1011 | /** \par |
72b63f06 | 1012 | * If we haven't sent the whole request then this can not be a persistent |
1013 | * connection. | |
1014 | */ | |
1015 | if (!flags.request_sent) { | |
e24f13cd | 1016 | debugs(11, 2, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 1017 | return COMPLETE_NONPERSISTENT_MSG; |
1018 | } | |
1019 | ||
073ba374 | 1020 | /** \par |
9f5a2895 | 1021 | * What does the reply have to say about keep-alive? |
1022 | */ | |
073ba374 AJ |
1023 | /** |
1024 | \bug XXX BUG? | |
b6a2f15e | 1025 | * If the origin server (HTTP/1.0) does not send a keep-alive |
1026 | * header, but keeps the connection open anyway, what happens? | |
1027 | * We'll return here and http.c waits for an EOF before changing | |
1028 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
1029 | * and an error status code, and we might have to wait until | |
1030 | * the server times out the socket. | |
1031 | */ | |
2afaba07 | 1032 | if (!rep->keep_alive) |
528b2c61 | 1033 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 1034 | |
528b2c61 | 1035 | return COMPLETE_PERSISTENT_MSG; |
1036 | } | |
1037 | ||
1038 | HttpStateData::ConnectionStatus | |
1039 | HttpStateData::persistentConnStatus() const | |
1040 | { | |
9cf7de1b | 1041 | debugs(11, 3, HERE << serverConnection << " eof=" << eof); |
839291ac AJ |
1042 | if (eof) // already reached EOF |
1043 | return COMPLETE_NONPERSISTENT_MSG; | |
1044 | ||
505c2f28 AR |
1045 | /* If server fd is closing (but we have not been notified yet), stop Comm |
1046 | I/O to avoid assertions. TODO: Change Comm API to handle callers that | |
1047 | want more I/O after async closing (usually initiated by others). */ | |
1048 | // XXX: add canReceive or s/canSend/canTalkToServer/ | |
e7cea0ed | 1049 | if (!Comm::IsConnOpen(serverConnection)) |
505c2f28 AR |
1050 | return COMPLETE_NONPERSISTENT_MSG; |
1051 | ||
9035d1d5 AJ |
1052 | /** \par |
1053 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1054 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 1055 | * decide if we can be persistant |
af0bb8e5 | 1056 | */ |
839291ac | 1057 | if (lastChunk && flags.chunked) |
9e008dda | 1058 | return statusIfComplete(); |
af0bb8e5 | 1059 | |
718d84bf AR |
1060 | const HttpReply *vrep = virginReply(); |
1061 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
1062 | ||
47f6e231 | 1063 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1064 | |
bf8fe701 | 1065 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1066 | |
35282fbf | 1067 | /* If the body size is unknown we must wait for EOF */ |
1068 | if (clen < 0) | |
62e76326 | 1069 | return INCOMPLETE_MSG; |
1070 | ||
9035d1d5 AJ |
1071 | /** \par |
1072 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1073 | if (clen > 0) { |
1074 | // old technique: | |
585ab260 | 1075 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 1076 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 1077 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 1078 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 1079 | |
585ab260 | 1080 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 1081 | return INCOMPLETE_MSG; |
821beb5e AR |
1082 | |
1083 | if (body_bytes_truncated > 0) // already read more than needed | |
1084 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns | |
5f8252d2 | 1085 | } |
62e76326 | 1086 | |
9035d1d5 AJ |
1087 | /** \par |
1088 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1089 | return statusIfComplete(); |
603a02fd | 1090 | } |
090089c4 | 1091 | |
2afaba07 | 1092 | /* |
1093 | * This is the callback after some data has been read from the network | |
1094 | */ | |
dc56a9b1 | 1095 | /* |
e5ee81f0 | 1096 | void |
d53b3f6d | 1097 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) |
c4b7a5a9 | 1098 | { |
1099 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
8d71285d | 1100 | assert (fd == httpState->serverConnection->fd); |
d53b3f6d | 1101 | // assert(buf == readBuf->content()); |
1d5161bd | 1102 | PROF_start(HttpStateData_readReply); |
e6edd8df | 1103 | httpState->readReply(len, flag, xerrno); |
1d5161bd | 1104 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1105 | } |
dc56a9b1 | 1106 | */ |
073ba374 | 1107 | |
2afdbf48 | 1108 | /* XXX this function is too long! */ |
c4b7a5a9 | 1109 | void |
e6edd8df | 1110 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1111 | { |
30a4f2a8 | 1112 | int bin; |
090089c4 | 1113 | int clen; |
dc56a9b1 | 1114 | int len = io.size; |
c4b7a5a9 | 1115 | |
46f4b111 | 1116 | flags.do_next_read = false; |
9e008dda | 1117 | |
3e4bebf8 | 1118 | debugs(11, 5, HERE << io.conn << ": len " << len << "."); |
62e76326 | 1119 | |
7a7cc03f | 1120 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1121 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1122 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1123 | return; |
1124 | } | |
1125 | ||
e92e4e44 | 1126 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 | 1127 | abortTransaction("store entry aborted while reading reply"); |
62e76326 | 1128 | return; |
e92e4e44 | 1129 | } |
c4b7a5a9 | 1130 | |
fdf55365 | 1131 | // handle I/O errors |
dc56a9b1 | 1132 | if (io.flag != COMM_OK || len < 0) { |
3e4bebf8 | 1133 | debugs(11, 2, HERE << io.conn << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1134 | |
dc56a9b1 | 1135 | if (ignoreErrno(io.xerrno)) { |
46f4b111 | 1136 | flags.do_next_read = true; |
fdf55365 | 1137 | } else { |
913524f0 | 1138 | ErrorState *err = new ErrorState(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
dc56a9b1 | 1139 | err->xerrno = io.xerrno; |
fdf55365 | 1140 | fwd->fail(err); |
46f4b111 | 1141 | flags.do_next_read = false; |
8d71285d | 1142 | serverConnection->close(); |
fdf55365 | 1143 | } |
1144 | ||
1145 | return; | |
1146 | } | |
1147 | ||
7a7cc03f | 1148 | // update I/O stats |
fdf55365 | 1149 | if (len > 0) { |
2afaba07 | 1150 | readBuf->appended(len); |
5f8252d2 | 1151 | reply_bytes_read += len; |
9a0a18de | 1152 | #if USE_DELAY_POOLS |
2afaba07 | 1153 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); |
62e76326 | 1154 | delayId.bytesIn(len); |
447e176b | 1155 | #endif |
62e76326 | 1156 | |
e4f1fdae FC |
1157 | kb_incr(&(statCounter.server.all.kbytes_in), len); |
1158 | kb_incr(&(statCounter.server.http.kbytes_in), len); | |
95dc7ff4 | 1159 | ++ IOStats.Http.reads; |
62e76326 | 1160 | |
95dc7ff4 | 1161 | for (clen = len - 1, bin = 0; clen; ++bin) |
62e76326 | 1162 | clen >>= 1; |
1163 | ||
95dc7ff4 | 1164 | ++ IOStats.Http.read_hist[bin]; |
3ff65596 AR |
1165 | |
1166 | // update peer response time stats (%<pt) | |
e24f13cd CT |
1167 | const timeval &sent = request->hier.peer_http_request_sent; |
1168 | request->hier.peer_response_time = | |
3ff65596 | 1169 | sent.tv_sec ? tvSubMsec(sent, current_time) : -1; |
30a4f2a8 | 1170 | } |
62e76326 | 1171 | |
073ba374 AJ |
1172 | /** \par |
1173 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1174 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1175 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1176 | * not allowing connection reuse in the first place. | |
648f6eb2 AJ |
1177 | * |
1178 | * 2012-02-10: which RFC? not 2068 or 2616, | |
1179 | * tolerance there is all about whitespace between requests and header tokens. | |
5fa061b8 | 1180 | */ |
5fa061b8 | 1181 | |
ba82c452 | 1182 | if (len == 0) { // reached EOF? |
62e76326 | 1183 | eof = 1; |
46f4b111 | 1184 | flags.do_next_read = false; |
da6c8415 | 1185 | |
b73a07d6 | 1186 | /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n |
da6c8415 | 1187 | * Ensure here that we have at minimum two \r\n when EOF is seen. |
b73a07d6 | 1188 | * TODO: Add eof parameter to headersEnd() and move this hack there. |
da6c8415 | 1189 | */ |
b73a07d6 | 1190 | if (readBuf->contentSize() && !flags.headers_parsed) { |
da6c8415 AJ |
1191 | /* |
1192 | * Yes Henrik, there is a point to doing this. When we | |
1193 | * called httpProcessReplyHeader() before, we didn't find | |
1194 | * the end of headers, but now we are definately at EOF, so | |
1195 | * we want to process the reply headers. | |
1196 | */ | |
1197 | /* Fake an "end-of-headers" to work around such broken servers */ | |
1198 | readBuf->append("\r\n", 2); | |
da6c8415 | 1199 | } |
ba82c452 | 1200 | } |
62e76326 | 1201 | |
655daa06 AR |
1202 | processReply(); |
1203 | } | |
1204 | ||
1205 | /// processes the already read and buffered response data, possibly after | |
1206 | /// waiting for asynchronous 1xx control message processing | |
1207 | void | |
de48b288 A |
1208 | HttpStateData::processReply() |
1209 | { | |
655daa06 AR |
1210 | |
1211 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1212 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1213 | flags.handling1xx = false; | |
1214 | Must(!flags.headers_parsed); | |
1215 | } | |
1216 | ||
ba82c452 | 1217 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1218 | PROF_start(HttpStateData_processReplyHeader); | |
1219 | processReplyHeader(); | |
1220 | PROF_stop(HttpStateData_processReplyHeader); | |
1221 | ||
1222 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1223 | return; // TODO: send errors to ICAP | |
1224 | ||
ab593f19 | 1225 | adaptOrFinalizeReply(); // may write to, abort, or "close" the entry |
ba82c452 | 1226 | } |
1227 | ||
1228 | // kick more reads if needed and/or process the response body, if any | |
1229 | PROF_start(HttpStateData_processReplyBody); | |
1230 | processReplyBody(); // may call serverComplete() | |
1231 | PROF_stop(HttpStateData_processReplyBody); | |
1232 | } | |
1233 | ||
073ba374 AJ |
1234 | /** |
1235 | \retval true if we can continue with processing the body or doing ICAP. | |
1236 | */ | |
ba82c452 | 1237 | bool |
1238 | HttpStateData::continueAfterParsingHeader() | |
1239 | { | |
655daa06 AR |
1240 | if (flags.handling1xx) { |
1241 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1242 | Must(!flags.headers_parsed); | |
1243 | return false; | |
1244 | } | |
1245 | ||
073ba374 | 1246 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1247 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
46f4b111 | 1248 | flags.do_next_read = true; |
073ba374 AJ |
1249 | /** \retval false If we have not finished parsing the headers and may get more data. |
1250 | * Schedules more reads to retrieve the missing data. | |
1251 | */ | |
ba82c452 | 1252 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1253 | return false; |
ba82c452 | 1254 | } |
1255 | ||
073ba374 | 1256 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1257 | |
1258 | err_type error = ERR_NONE; | |
1259 | ||
1260 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1261 | // check for header parsing errors | |
585ab260 | 1262 | if (HttpReply *vrep = virginReply()) { |
1263 | const http_status s = vrep->sline.status; | |
1264 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1265 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
e24f13cd | 1266 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1267 | error = ERR_INVALID_RESP; |
e1381638 AJ |
1268 | } else if (s == HTTP_HEADER_TOO_LARGE) { |
1269 | fwd->dontRetry(true); | |
1270 | error = ERR_TOO_BIG; | |
1271 | } else { | |
1272 | return true; // done parsing, got reply, and no error | |
1273 | } | |
ba82c452 | 1274 | } else { |
1275 | // parsed headers but got no reply | |
e24f13cd | 1276 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1277 | error = ERR_INVALID_RESP; |
62e76326 | 1278 | } |
090089c4 | 1279 | } else { |
ba82c452 | 1280 | assert(eof); |
9121eba6 AJ |
1281 | if (readBuf->hasContent()) { |
1282 | error = ERR_INVALID_RESP; | |
e24f13cd | 1283 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Headers did not parse at all for " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
9121eba6 AJ |
1284 | } else { |
1285 | error = ERR_ZERO_SIZE_OBJECT; | |
45e5102d | 1286 | debugs(11, (request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << |
e24f13cd | 1287 | entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
9121eba6 | 1288 | } |
2afaba07 | 1289 | } |
ba82c452 | 1290 | |
1291 | assert(error != ERR_NONE); | |
1292 | entry->reset(); | |
913524f0 | 1293 | fwd->fail(new ErrorState(error, HTTP_BAD_GATEWAY, fwd->request)); |
46f4b111 | 1294 | flags.do_next_read = false; |
8d71285d | 1295 | serverConnection->close(); |
ba82c452 | 1296 | return false; // quit on error |
2afaba07 | 1297 | } |
1298 | ||
821beb5e AR |
1299 | /** truncate what we read if we read too much so that writeReplyBody() |
1300 | writes no more than what we should have read */ | |
1301 | void | |
1302 | HttpStateData::truncateVirginBody() | |
1303 | { | |
1304 | assert(flags.headers_parsed); | |
1305 | ||
1306 | HttpReply *vrep = virginReply(); | |
1307 | int64_t clen = -1; | |
1308 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1309 | return; // no body or a body of unknown size, including chunked | |
1310 | ||
1311 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; | |
e1381638 | 1312 | if (body_bytes_read - body_bytes_truncated <= clen) |
821beb5e AR |
1313 | return; // we did not read too much or already took care of the extras |
1314 | ||
1315 | if (const int64_t extras = body_bytes_read - body_bytes_truncated - clen) { | |
1316 | // server sent more that the advertised content length | |
e1381638 AJ |
1317 | debugs(11,5, HERE << "body_bytes_read=" << body_bytes_read << |
1318 | " clen=" << clen << '/' << vrep->content_length << | |
1319 | " body_bytes_truncated=" << body_bytes_truncated << '+' << extras); | |
821beb5e AR |
1320 | |
1321 | readBuf->truncate(extras); | |
1322 | body_bytes_truncated += extras; | |
1323 | } | |
1324 | } | |
1325 | ||
073ba374 | 1326 | /** |
2afaba07 | 1327 | * Call this when there is data from the origin server |
1328 | * which should be sent to either StoreEntry, or to ICAP... | |
1329 | */ | |
1330 | void | |
5f8252d2 | 1331 | HttpStateData::writeReplyBody() |
2afaba07 | 1332 | { |
821beb5e | 1333 | truncateVirginBody(); // if needed |
5f8252d2 | 1334 | const char *data = readBuf->content(); |
1335 | int len = readBuf->contentSize(); | |
bc81cb2b | 1336 | addVirginReplyBody(data, len); |
5f8252d2 | 1337 | readBuf->consume(len); |
af0bb8e5 | 1338 | } |
fc68f6b1 | 1339 | |
af0bb8e5 | 1340 | bool |
1341 | HttpStateData::decodeAndWriteReplyBody() | |
1342 | { | |
1343 | const char *data = NULL; | |
1344 | int len; | |
e053c141 | 1345 | bool wasThereAnException = false; |
af0bb8e5 | 1346 | assert(flags.chunked); |
1347 | assert(httpChunkDecoder); | |
1348 | SQUID_ENTER_THROWING_CODE(); | |
1349 | MemBuf decodedData; | |
1350 | decodedData.init(); | |
e053c141 | 1351 | const bool doneParsing = httpChunkDecoder->parse(readBuf,&decodedData); |
af0bb8e5 | 1352 | len = decodedData.contentSize(); |
1353 | data=decodedData.content(); | |
1354 | addVirginReplyBody(data, len); | |
e053c141 | 1355 | if (doneParsing) { |
839291ac | 1356 | lastChunk = 1; |
46f4b111 | 1357 | flags.do_next_read = false; |
af0bb8e5 | 1358 | } |
e053c141 FC |
1359 | SQUID_EXIT_THROWING_CODE(wasThereAnException); |
1360 | return wasThereAnException; | |
e6ccf245 | 1361 | } |
1362 | ||
073ba374 | 1363 | /** |
2afaba07 | 1364 | * processReplyBody has two purposes: |
1365 | * 1 - take the reply body data, if any, and put it into either | |
1366 | * the StoreEntry, or give it over to ICAP. | |
1367 | * 2 - see if we made it to the end of the response (persistent | |
1368 | * connections and such) | |
1369 | */ | |
e6ccf245 | 1370 | void |
2afaba07 | 1371 | HttpStateData::processReplyBody() |
e6ccf245 | 1372 | { |
b7ac5457 | 1373 | Ip::Address client_addr; |
d67acb4e | 1374 | bool ispinned = false; |
fc68f6b1 | 1375 | |
1a98175f | 1376 | if (!flags.headers_parsed) { |
46f4b111 | 1377 | flags.do_next_read = true; |
5f8252d2 | 1378 | maybeReadVirginBody(); |
62e76326 | 1379 | return; |
528b2c61 | 1380 | } |
62e76326 | 1381 | |
a83c6ed6 | 1382 | #if USE_ADAPTATION |
c30ac6ea | 1383 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1384 | if (adaptationAccessCheckPending) |
2afaba07 | 1385 | return; |
fc68f6b1 | 1386 | |
2afaba07 | 1387 | #endif |
62e76326 | 1388 | |
2afaba07 | 1389 | /* |
1390 | * At this point the reply headers have been parsed and consumed. | |
1391 | * That means header content has been removed from readBuf and | |
1392 | * it contains only body data. | |
1393 | */ | |
ef85ab2f DK |
1394 | if (entry->isAccepting()) { |
1395 | if (flags.chunked) { | |
1396 | if (!decodeAndWriteReplyBody()) { | |
46f4b111 | 1397 | flags.do_next_read = false; |
ef85ab2f DK |
1398 | serverComplete(); |
1399 | return; | |
1400 | } | |
1401 | } else | |
1402 | writeReplyBody(); | |
1403 | } | |
528b2c61 | 1404 | |
e6ccf245 | 1405 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 AJ |
1406 | // The above writeReplyBody() call may have aborted the store entry. |
1407 | abortTransaction("store entry aborted while storing reply"); | |
1408 | return; | |
62e76326 | 1409 | } else |
1410 | switch (persistentConnStatus()) { | |
dc49061a | 1411 | case INCOMPLETE_MSG: { |
3e4bebf8 | 1412 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG from " << serverConnection); |
21b92762 | 1413 | /* Wait for more data or EOF condition */ |
8d77a37c | 1414 | AsyncCall::Pointer nil; |
21b92762 | 1415 | if (flags.keepalive_broken) { |
8d77a37c | 1416 | commSetConnTimeout(serverConnection, 10, nil); |
21b92762 | 1417 | } else { |
8d77a37c | 1418 | commSetConnTimeout(serverConnection, Config.Timeout.read, nil); |
21b92762 | 1419 | } |
1420 | ||
46f4b111 | 1421 | flags.do_next_read = true; |
dc49061a A |
1422 | } |
1423 | break; | |
62e76326 | 1424 | |
1425 | case COMPLETE_PERSISTENT_MSG: | |
3e4bebf8 | 1426 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG from " << serverConnection); |
62e76326 | 1427 | /* yes we have to clear all these! */ |
8d77a37c | 1428 | commUnsetConnTimeout(serverConnection); |
46f4b111 | 1429 | flags.do_next_read = false; |
62e76326 | 1430 | |
8d71285d | 1431 | comm_remove_close_handler(serverConnection->fd, closeHandler); |
dc56a9b1 | 1432 | closeHandler = NULL; |
8d71285d | 1433 | fwd->unregister(serverConnection); |
fc68f6b1 | 1434 | |
450fe1cb | 1435 | if (request->flags.spoofClientIp) |
e24f13cd | 1436 | client_addr = request->client_addr; |
fc68f6b1 | 1437 | |
45e5102d | 1438 | if (request->flags.pinned) { |
9e008dda | 1439 | ispinned = true; |
450fe1cb | 1440 | } else if (request->flags.connectionAuth && request->flags.authSent) { |
9e008dda AJ |
1441 | ispinned = true; |
1442 | } | |
1443 | ||
abbd1c5d | 1444 | if (ispinned && request->clientConnectionManager.valid()) { |
5e9c1cc1 | 1445 | request->clientConnectionManager->pinConnection(serverConnection, request, _peer, |
e857372a | 1446 | (request->flags.connectionAuth)); |
bd0723ad | 1447 | } else { |
7a150c71 | 1448 | fwd->pconnPush(serverConnection, request->GetHost()); |
bd0723ad | 1449 | } |
1450 | ||
8d71285d | 1451 | serverConnection = NULL; |
5f8252d2 | 1452 | serverComplete(); |
62e76326 | 1453 | return; |
1454 | ||
1455 | case COMPLETE_NONPERSISTENT_MSG: | |
3e4bebf8 | 1456 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG from " << serverConnection); |
5f8252d2 | 1457 | serverComplete(); |
62e76326 | 1458 | return; |
1459 | } | |
1460 | ||
5f8252d2 | 1461 | maybeReadVirginBody(); |
c4b7a5a9 | 1462 | } |
1463 | ||
1464 | void | |
5f8252d2 | 1465 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1466 | { |
85bef0a7 AR |
1467 | // too late to read |
1468 | if (!Comm::IsConnOpen(serverConnection) || fd_table[serverConnection->fd].closing()) | |
1469 | return; | |
1470 | ||
52edecde | 1471 | // we may need to grow the buffer if headers do not fit |
1c9605c5 | 1472 | const int minRead = flags.headers_parsed ? 0 :1024; |
d5f8d05f | 1473 | const int read_size = replyBodySpace(*readBuf, minRead); |
2afaba07 | 1474 | |
5f8252d2 | 1475 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
9cf7de1b | 1476 | " read up to " << read_size << " bytes from " << serverConnection); |
2afaba07 | 1477 | |
1478 | /* | |
1479 | * why <2? Because delayAwareRead() won't actually read if | |
1480 | * you ask it to read 1 byte. The delayed read request | |
1481 | * just gets re-queued until the client side drains, then | |
1482 | * the I/O thread hangs. Better to not register any read | |
1483 | * handler until we get a notification from someone that | |
1484 | * its okay to read again. | |
1485 | */ | |
d5f8d05f | 1486 | if (read_size < 2) |
52edecde | 1487 | return; |
2afaba07 | 1488 | |
f61f0107 | 1489 | if (flags.do_next_read) { |
46f4b111 | 1490 | flags.do_next_read = false; |
dc56a9b1 | 1491 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
3e4bebf8 | 1492 | entry->delayAwareRead(serverConnection, readBuf->space(read_size), read_size, |
4cb2536f | 1493 | JobCallback(11, 5, Dialer, this, HttpStateData::readReply)); |
528b2c61 | 1494 | } |
090089c4 | 1495 | } |
1496 | ||
39cb8c41 | 1497 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1498 | void |
39cb8c41 | 1499 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1500 | { |
9cf7de1b | 1501 | debugs(11, 5, HERE << serverConnection << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1502 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1503 | |
528b2c61 | 1504 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1505 | #endif |
62e76326 | 1506 | |
dc56a9b1 | 1507 | if (io.size > 0) { |
49ae8b95 | 1508 | fd_bytes(io.fd, io.size, FD_WRITE); |
e4f1fdae FC |
1509 | kb_incr(&(statCounter.server.all.kbytes_out), io.size); |
1510 | kb_incr(&(statCounter.server.http.kbytes_out), io.size); | |
ee1679df | 1511 | } |
62e76326 | 1512 | |
dc56a9b1 | 1513 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1514 | return; |
1515 | ||
dc56a9b1 | 1516 | if (io.flag) { |
913524f0 | 1517 | ErrorState *err = new ErrorState(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
dc56a9b1 | 1518 | err->xerrno = io.xerrno; |
1519 | fwd->fail(err); | |
8d71285d | 1520 | serverConnection->close(); |
62e76326 | 1521 | return; |
090089c4 | 1522 | } |
72b63f06 | 1523 | |
39cb8c41 AR |
1524 | sendComplete(); |
1525 | } | |
1526 | ||
1527 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1528 | void | |
1529 | HttpStateData::sendComplete() | |
1530 | { | |
2afaba07 | 1531 | /* |
1532 | * Set the read timeout here because it hasn't been set yet. | |
1533 | * We only set the read timeout after the request has been | |
1534 | * fully written to the server-side. If we start the timeout | |
1535 | * after connection establishment, then we are likely to hit | |
1536 | * the timeout for POST/PUT requests that have very large | |
1537 | * request bodies. | |
1538 | */ | |
dc56a9b1 | 1539 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1540 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1541 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1542 | |
8d77a37c | 1543 | commSetConnTimeout(serverConnection, Config.Timeout.read, timeoutCall); |
46f4b111 | 1544 | flags.request_sent = true; |
e24f13cd | 1545 | request->hier.peer_http_request_sent = current_time; |
090089c4 | 1546 | } |
1547 | ||
5f8252d2 | 1548 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1549 | void |
5f8252d2 | 1550 | HttpStateData::closeServer() |
2afaba07 | 1551 | { |
9cf7de1b | 1552 | debugs(11,5, HERE << "closing HTTP server " << serverConnection << " this " << this); |
fc68f6b1 | 1553 | |
9cf7de1b | 1554 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d AJ |
1555 | fwd->unregister(serverConnection); |
1556 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
dc56a9b1 | 1557 | closeHandler = NULL; |
8d71285d | 1558 | serverConnection->close(); |
2afaba07 | 1559 | } |
5f8252d2 | 1560 | } |
2afaba07 | 1561 | |
5f8252d2 | 1562 | bool |
1563 | HttpStateData::doneWithServer() const | |
1564 | { | |
9cf7de1b | 1565 | return !Comm::IsConnOpen(serverConnection); |
2afaba07 | 1566 | } |
1567 | ||
ee0b94f4 HN |
1568 | /* |
1569 | * Fixup authentication request headers for special cases | |
1570 | */ | |
1571 | static void | |
46f4b111 | 1572 | httpFixupAuthentication(HttpRequest * request, const HttpHeader * hdr_in, HttpHeader * hdr_out, const HttpStateFlags &flags) |
ee0b94f4 HN |
1573 | { |
1574 | http_hdr_type header = flags.originpeer ? HDR_AUTHORIZATION : HDR_PROXY_AUTHORIZATION; | |
1575 | ||
1576 | /* Nothing to do unless we are forwarding to a peer */ | |
45e5102d | 1577 | if (!request->flags.proxying) |
f54f527e | 1578 | return; |
ee0b94f4 HN |
1579 | |
1580 | /* Needs to be explicitly enabled */ | |
e24f13cd | 1581 | if (!request->peer_login) |
f54f527e | 1582 | return; |
ee0b94f4 HN |
1583 | |
1584 | /* Maybe already dealt with? */ | |
1585 | if (hdr_out->has(header)) | |
f54f527e | 1586 | return; |
ee0b94f4 HN |
1587 | |
1588 | /* Nothing to do here for PASSTHRU */ | |
e24f13cd | 1589 | if (strcmp(request->peer_login, "PASSTHRU") == 0) |
f54f527e | 1590 | return; |
ee0b94f4 HN |
1591 | |
1592 | /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */ | |
e24f13cd | 1593 | if (flags.originpeer && strcmp(request->peer_login, "PROXYPASS") == 0 && hdr_in->has(HDR_PROXY_AUTHORIZATION)) { |
f54f527e | 1594 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
ee0b94f4 | 1595 | |
f54f527e AJ |
1596 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1597 | hdr_out->putStr(header, auth); | |
1598 | return; | |
1599 | } | |
ee0b94f4 HN |
1600 | } |
1601 | ||
1602 | /* Special mode to pass the username to the upstream cache */ | |
e24f13cd | 1603 | if (*request->peer_login == '*') { |
f54f527e AJ |
1604 | char loginbuf[256]; |
1605 | const char *username = "-"; | |
ee0b94f4 | 1606 | |
e24f13cd CT |
1607 | if (request->extacl_user.size()) |
1608 | username = request->extacl_user.termedBuf(); | |
2f1431ea | 1609 | #if USE_AUTH |
e24f13cd CT |
1610 | else if (request->auth_user_request != NULL) |
1611 | username = request->auth_user_request->username(); | |
2f1431ea | 1612 | #endif |
ee0b94f4 | 1613 | |
e24f13cd | 1614 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, request->peer_login + 1); |
ee0b94f4 | 1615 | |
f54f527e | 1616 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1617 | old_base64_encode(loginbuf)); |
f54f527e | 1618 | return; |
ee0b94f4 HN |
1619 | } |
1620 | ||
1621 | /* external_acl provided credentials */ | |
e24f13cd CT |
1622 | if (request->extacl_user.size() && request->extacl_passwd.size() && |
1623 | (strcmp(request->peer_login, "PASS") == 0 || | |
1624 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
f54f527e AJ |
1625 | char loginbuf[256]; |
1626 | snprintf(loginbuf, sizeof(loginbuf), SQUIDSTRINGPH ":" SQUIDSTRINGPH, | |
e24f13cd CT |
1627 | SQUIDSTRINGPRINT(request->extacl_user), |
1628 | SQUIDSTRINGPRINT(request->extacl_passwd)); | |
f54f527e | 1629 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1630 | old_base64_encode(loginbuf)); |
f54f527e | 1631 | return; |
ee0b94f4 | 1632 | } |
8fdaa8af AJ |
1633 | // if no external user credentials are available to fake authentication with PASS acts like PASSTHRU |
1634 | if (strcmp(request->peer_login, "PASS") == 0) | |
28204b3b | 1635 | return; |
ee0b94f4 | 1636 | |
9ca29d23 | 1637 | /* Kerberos login to peer */ |
2f1431ea | 1638 | #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI |
e24f13cd | 1639 | if (strncmp(request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { |
9ca29d23 AJ |
1640 | char *Token=NULL; |
1641 | char *PrincipalName=NULL,*p; | |
e24f13cd | 1642 | if ((p=strchr(request->peer_login,':')) != NULL ) { |
9ca29d23 AJ |
1643 | PrincipalName=++p; |
1644 | } | |
e24f13cd | 1645 | Token = peer_proxy_negotiate_auth(PrincipalName, request->peer_host); |
9ca29d23 | 1646 | if (Token) { |
63f03f79 | 1647 | httpHeaderPutStrf(hdr_out, header, "Negotiate %s",Token); |
9ca29d23 AJ |
1648 | } |
1649 | return; | |
1650 | } | |
1651 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1652 | ||
0606266f | 1653 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
e24f13cd | 1654 | old_base64_encode(request->peer_login)); |
ee0b94f4 HN |
1655 | return; |
1656 | } | |
1657 | ||
99edd1c3 | 1658 | /* |
9e008dda | 1659 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1660 | * used by buildRequestPrefix() |
818c6c9e | 1661 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1662 | */ |
e1e72f06 | 1663 | void |
e5ee81f0 | 1664 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
e5ee81f0 | 1665 | StoreEntry * entry, |
4bf68cfa | 1666 | const AccessLogEntryPointer &al, |
e5ee81f0 | 1667 | HttpHeader * hdr_out, |
46f4b111 | 1668 | const HttpStateFlags &flags) |
6bf8443a | 1669 | { |
99edd1c3 | 1670 | /* building buffer for complex strings */ |
5999b776 | 1671 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1672 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1673 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
e24f13cd | 1674 | const HttpHeader *hdr_in = &request->header; |
67c06f0d | 1675 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1676 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1677 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1678 | |
262a0e14 | 1679 | /* append our IMS header */ |
fa3e249f | 1680 | if (request->lastmod > -1) |
a9925b40 | 1681 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1682 | |
e24f13cd | 1683 | bool we_do_ranges = decideIfWeDoRanges (request); |
528b2c61 | 1684 | |
30abd221 | 1685 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1686 | |
a9925b40 | 1687 | while ((e = hdr_in->getEntry(&pos))) |
e24f13cd | 1688 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1689 | |
43ae1d95 | 1690 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1691 | * into offset-length data, and this works around our inability to do so. |
1692 | */ | |
e24f13cd | 1693 | if (!we_do_ranges && request->multipartRangeRequest()) { |
62e76326 | 1694 | /* don't cache the result */ |
e857372a | 1695 | request->flags.cachable = false; |
62e76326 | 1696 | /* pretend it's not a range request */ |
e24f13cd CT |
1697 | delete request->range; |
1698 | request->range = NULL; | |
e857372a | 1699 | request->flags.isRanged = false; |
62e76326 | 1700 | } |
528b2c61 | 1701 | |
99edd1c3 | 1702 | /* append Via */ |
736cb6aa | 1703 | if (Config.onoff.via) { |
30abd221 | 1704 | String strVia; |
a9925b40 | 1705 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1706 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
e24f13cd CT |
1707 | request->http_ver.major, |
1708 | request->http_ver.minor, ThisCache); | |
62e76326 | 1709 | strListAdd(&strVia, bbuf, ','); |
d53b3f6d | 1710 | hdr_out->putStr(HDR_VIA, strVia.termedBuf()); |
30abd221 | 1711 | strVia.clean(); |
736cb6aa | 1712 | } |
62e76326 | 1713 | |
45e5102d | 1714 | if (request->flags.accelerated) { |
43ae1d95 | 1715 | /* Append Surrogate-Capabilities */ |
45cca89d AJ |
1716 | String strSurrogate(hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
1717 | #if USE_SQUID_ESI | |
1718 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1719 | #else | |
1720 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1721 | #endif | |
43ae1d95 | 1722 | strListAdd(&strSurrogate, bbuf, ','); |
d53b3f6d | 1723 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1724 | } |
43ae1d95 | 1725 | |
67c06f0d | 1726 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1727 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 AR |
1728 | |
1729 | String strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1730 | ||
1731 | if (strFwd.size() > 65536/2) { | |
1732 | // There is probably a forwarding loop with Via detection disabled. | |
1733 | // If we do nothing, String will assert on overflow soon. | |
1734 | // TODO: Terminate all transactions with huge XFF? | |
1735 | strFwd = "error"; | |
1736 | ||
1737 | static int warnedCount = 0; | |
1738 | if (warnedCount++ < 100) { | |
e24f13cd | 1739 | const char *url = entry ? entry->url() : urlCanonical(request); |
e0236918 | 1740 | debugs(11, DBG_IMPORTANT, "Warning: likely forwarding loop with " << url); |
c4f30223 AR |
1741 | } |
1742 | } | |
1743 | ||
9e008dda | 1744 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1745 | /** If set to ON - append client IP or 'unknown'. */ |
e24f13cd | 1746 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1747 | strListAdd(&strFwd, "unknown", ','); |
1748 | else | |
e24f13cd | 1749 | strListAdd(&strFwd, request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); |
9e008dda | 1750 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1751 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1752 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1753 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1754 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1755 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1756 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
e24f13cd | 1757 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1758 | strFwd = "unknown"; |
1759 | else | |
e24f13cd | 1760 | strFwd = request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); |
67c06f0d | 1761 | } |
9e008dda | 1762 | if (strFwd.size() > 0) |
d53b3f6d | 1763 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1764 | } |
67c06f0d | 1765 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1766 | |
99edd1c3 | 1767 | /* append Host if not there already */ |
a9925b40 | 1768 | if (!hdr_out->has(HDR_HOST)) { |
e24f13cd CT |
1769 | if (request->peer_domain) { |
1770 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
1771 | } else if (request->port == urlDefaultPort(request->protocol)) { | |
62e76326 | 1772 | /* use port# only if not default */ |
e24f13cd | 1773 | hdr_out->putStr(HDR_HOST, request->GetHost()); |
62e76326 | 1774 | } else { |
1775 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1776 | request->GetHost(), |
1777 | (int) request->port); | |
62e76326 | 1778 | } |
6bf8443a | 1779 | } |
62e76326 | 1780 | |
c68e9c6b | 1781 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1782 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
ff8b6bcf | 1783 | if (!request->flags.proxying && request->login[0] != '\0') { |
62e76326 | 1784 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
8bdd0cec | 1785 | old_base64_encode(request->login)); |
62e76326 | 1786 | } |
c68e9c6b | 1787 | } |
62e76326 | 1788 | |
ee0b94f4 | 1789 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
e24f13cd | 1790 | httpFixupAuthentication(request, hdr_in, hdr_out, flags); |
62e76326 | 1791 | |
ee0b94f4 HN |
1792 | /* append Cache-Control, add max-age if not there already */ |
1793 | { | |
a9925b40 | 1794 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1795 | |
1796 | if (!cc) | |
a4a03b37 | 1797 | cc = new HttpHdrCc(); |
62e76326 | 1798 | |
7dc5c309 AJ |
1799 | #if 0 /* see bug 2330 */ |
1800 | /* Set no-cache if determined needed but not found */ | |
e24f13cd | 1801 | if (request->flags.nocache) |
7dc5c309 AJ |
1802 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1803 | #endif | |
1804 | ||
af6a12ee | 1805 | /* Add max-age only without no-cache */ |
904a4905 | 1806 | if (!cc->hasMaxAge() && !cc->noCache()) { |
43ae1d95 | 1807 | const char *url = |
e24f13cd | 1808 | entry ? entry->url() : urlCanonical(request); |
cf7c2e94 | 1809 | cc->maxAge(getMaxAge(url)); |
62e76326 | 1810 | |
62e76326 | 1811 | } |
1812 | ||
ce2d6441 | 1813 | /* Enforce sibling relations */ |
62e76326 | 1814 | if (flags.only_if_cached) |
4ce6e3b5 | 1815 | cc->onlyIfCached(true); |
62e76326 | 1816 | |
a9925b40 | 1817 | hdr_out->putCc(cc); |
62e76326 | 1818 | |
3d7782c1 | 1819 | delete cc; |
6bf8443a | 1820 | } |
62e76326 | 1821 | |
99edd1c3 | 1822 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1823 | if (flags.keepalive) { |
95e78500 | 1824 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
603a02fd | 1825 | } |
62e76326 | 1826 | |
a7ad6e4e | 1827 | /* append Front-End-Https */ |
1828 | if (flags.front_end_https) { | |
0c3d3f65 | 1829 | if (flags.front_end_https == 1 || request->protocol == AnyP::PROTO_HTTPS) |
a9925b40 | 1830 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1831 | } |
1832 | ||
e31a1e67 AR |
1833 | if (flags.chunked_request) { |
1834 | // Do not just copy the original value so that if the client-side | |
1835 | // starts decode other encodings, this code may remain valid. | |
39cb8c41 AR |
1836 | hdr_out->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1837 | } | |
1838 | ||
6bccf575 | 1839 | /* Now mangle the headers. */ |
4f56514c | 1840 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1841 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1842 | |
f4698e0b | 1843 | if (Config.request_header_add && !Config.request_header_add->empty()) |
4bf68cfa | 1844 | httpHdrAdd(hdr_out, request, al, *Config.request_header_add); |
f4698e0b | 1845 | |
30abd221 | 1846 | strConnection.clean(); |
99edd1c3 | 1847 | } |
1848 | ||
9e498bfb AJ |
1849 | /** |
1850 | * Decides whether a particular header may be cloned from the received Clients request | |
1851 | * to our outgoing fetch request. | |
1852 | */ | |
528b2c61 | 1853 | void |
46f4b111 | 1854 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, HttpHeader * hdr_out, const int we_do_ranges, const HttpStateFlags &flags) |
528b2c61 | 1855 | { |
e8466ea9 | 1856 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 1857 | |
528b2c61 | 1858 | switch (e->id) { |
62e76326 | 1859 | |
af6a12ee | 1860 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 1861 | |
be753325 | 1862 | case HDR_PROXY_AUTHORIZATION: |
9e498bfb AJ |
1863 | /** \par Proxy-Authorization: |
1864 | * Only pass on proxy authentication to peers for which | |
62e76326 | 1865 | * authentication forwarding is explicitly enabled |
1866 | */ | |
e24f13cd CT |
1867 | if (!flags.originpeer && flags.proxying && request->peer_login && |
1868 | (strcmp(request->peer_login, "PASS") == 0 || | |
1869 | strcmp(request->peer_login, "PROXYPASS") == 0 || | |
1870 | strcmp(request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 1871 | hdr_out->addEntry(e->clone()); |
62e76326 | 1872 | } |
62e76326 | 1873 | break; |
1874 | ||
af6a12ee | 1875 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb AJ |
1876 | |
1877 | case HDR_CONNECTION: /** \par Connection: */ | |
1878 | case HDR_TE: /** \par TE: */ | |
1879 | case HDR_KEEP_ALIVE: /** \par Keep-Alive: */ | |
1880 | case HDR_PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
a1651bad | 1881 | case HDR_TRAILER: /** \par Trailer: */ |
9e498bfb AJ |
1882 | case HDR_UPGRADE: /** \par Upgrade: */ |
1883 | case HDR_TRANSFER_ENCODING: /** \par Transfer-Encoding: */ | |
1884 | break; | |
1885 | ||
af6a12ee | 1886 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 1887 | |
be753325 | 1888 | case HDR_AUTHORIZATION: |
9e498bfb AJ |
1889 | /** \par WWW-Authorization: |
1890 | * Pass on WWW authentication */ | |
62e76326 | 1891 | |
1892 | if (!flags.originpeer) { | |
eede25e7 | 1893 | hdr_out->addEntry(e->clone()); |
62e76326 | 1894 | } else { |
9e498bfb | 1895 | /** \note In accelerators, only forward authentication if enabled |
ee0b94f4 | 1896 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 1897 | */ |
e24f13cd CT |
1898 | if (request->peer_login && |
1899 | (strcmp(request->peer_login, "PASS") == 0 || | |
1900 | strcmp(request->peer_login, "PASSTHRU") == 0 || | |
1901 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1902 | hdr_out->addEntry(e->clone()); |
62e76326 | 1903 | } |
1904 | } | |
1905 | ||
1906 | break; | |
1907 | ||
be753325 | 1908 | case HDR_HOST: |
9e498bfb | 1909 | /** \par Host: |
b883b594 | 1910 | * Normally Squid rewrites the Host: header. |
1911 | * However, there is one case when we don't: If the URL | |
62e76326 | 1912 | * went through our redirector and the admin configured |
1913 | * 'redir_rewrites_host' to be off. | |
1914 | */ | |
e24f13cd CT |
1915 | if (request->peer_domain) |
1916 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
45e5102d | 1917 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1918 | hdr_out->addEntry(e->clone()); |
b883b594 | 1919 | else { |
1920 | /* use port# only if not default */ | |
1921 | ||
e24f13cd CT |
1922 | if (request->port == urlDefaultPort(request->protocol)) { |
1923 | hdr_out->putStr(HDR_HOST, request->GetHost()); | |
b883b594 | 1924 | } else { |
1925 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1926 | request->GetHost(), |
1927 | (int) request->port); | |
b883b594 | 1928 | } |
1929 | } | |
62e76326 | 1930 | |
1931 | break; | |
1932 | ||
be753325 | 1933 | case HDR_IF_MODIFIED_SINCE: |
9e498bfb | 1934 | /** \par If-Modified-Since: |
af6a12ee | 1935 | * append unless we added our own; |
9e498bfb | 1936 | * \note at most one client's ims header can pass through */ |
b883b594 | 1937 | |
a9925b40 | 1938 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1939 | hdr_out->addEntry(e->clone()); |
62e76326 | 1940 | |
1941 | break; | |
1942 | ||
be753325 | 1943 | case HDR_MAX_FORWARDS: |
9e498bfb | 1944 | /** \par Max-Forwards: |
fc90edc3 | 1945 | * pass only on TRACE or OPTIONS requests */ |
c2a7cefd | 1946 | if (request->method == Http::METHOD_TRACE || request->method == Http::METHOD_OPTIONS) { |
fc90edc3 | 1947 | const int64_t hops = e->getInt64(); |
62e76326 | 1948 | |
1949 | if (hops > 0) | |
fc90edc3 | 1950 | hdr_out->putInt64(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1951 | } |
1952 | ||
1953 | break; | |
1954 | ||
be753325 | 1955 | case HDR_VIA: |
9e498bfb AJ |
1956 | /** \par Via: |
1957 | * If Via is disabled then forward any received header as-is. | |
1958 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 1959 | |
1960 | if (!Config.onoff.via) | |
eede25e7 | 1961 | hdr_out->addEntry(e->clone()); |
62e76326 | 1962 | |
1963 | break; | |
1964 | ||
be753325 | 1965 | case HDR_RANGE: |
62e76326 | 1966 | |
be753325 | 1967 | case HDR_IF_RANGE: |
62e76326 | 1968 | |
be753325 | 1969 | case HDR_REQUEST_RANGE: |
9e498bfb AJ |
1970 | /** \par Range:, If-Range:, Request-Range: |
1971 | * Only pass if we accept ranges */ | |
62e76326 | 1972 | if (!we_do_ranges) |
eede25e7 | 1973 | hdr_out->addEntry(e->clone()); |
62e76326 | 1974 | |
1975 | break; | |
1976 | ||
95e78500 AJ |
1977 | case HDR_PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
1978 | break; | |
62e76326 | 1979 | |
f228d6f6 AR |
1980 | case HDR_CONTENT_LENGTH: |
1981 | // pass through unless we chunk; also, keeping this away from default | |
1982 | // prevents request smuggling via Connection: Content-Length tricks | |
1983 | if (!flags.chunked_request) | |
1984 | hdr_out->addEntry(e->clone()); | |
1985 | break; | |
1986 | ||
be753325 | 1987 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1988 | |
be753325 | 1989 | case HDR_CACHE_CONTROL: |
95e78500 | 1990 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
1991 | * handled specially by Squid, so leave off for now. |
1992 | * append these after the loop if needed */ | |
62e76326 | 1993 | break; |
1994 | ||
be753325 | 1995 | case HDR_FRONT_END_HTTPS: |
9e498bfb AJ |
1996 | /** \par Front-End-Https: |
1997 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 1998 | if (!flags.front_end_https) |
eede25e7 | 1999 | hdr_out->addEntry(e->clone()); |
62e76326 | 2000 | |
2001 | break; | |
2002 | ||
be753325 | 2003 | default: |
9e498bfb AJ |
2004 | /** \par default. |
2005 | * pass on all other header fields | |
2006 | * which are NOT listed by the special Connection: header. */ | |
2007 | ||
a7a42b14 | 2008 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name.termedBuf(), ',')) { |
e1ea7456 | 2009 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
2010 | return; |
2011 | } | |
2012 | ||
eede25e7 | 2013 | hdr_out->addEntry(e->clone()); |
528b2c61 | 2014 | } |
2015 | } | |
2016 | ||
e5ee81f0 | 2017 | bool |
e24f13cd | 2018 | HttpStateData::decideIfWeDoRanges (HttpRequest * request) |
528b2c61 | 2019 | { |
e5ee81f0 | 2020 | bool result = true; |
62e76326 | 2021 | /* decide if we want to do Ranges ourselves |
2022 | * and fetch the whole object now) | |
2023 | * We want to handle Ranges ourselves iff | |
2024 | * - we can actually parse client Range specs | |
2025 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
2026 | * - reply will be cachable | |
2027 | * (If the reply will be uncachable we have to throw it away after | |
2028 | * serving this request, so it is better to forward ranges to | |
2029 | * the server and fetch only the requested content) | |
2030 | */ | |
2031 | ||
e24f13cd | 2032 | int64_t roffLimit = request->getRangeOffsetLimit(); |
11e3fa1c | 2033 | |
45e5102d | 2034 | if (NULL == request->range || !request->flags.cachable |
450fe1cb | 2035 | || request->range->offsetLimitExceeded(roffLimit) || request->flags.connectionAuth) |
e5ee81f0 | 2036 | result = false; |
62e76326 | 2037 | |
9e008dda | 2038 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
e24f13cd | 2039 | request->range << ", cachable: " << |
45e5102d | 2040 | request->flags.cachable << "; we_do_ranges: " << result); |
62e76326 | 2041 | |
2042 | return result; | |
528b2c61 | 2043 | } |
2044 | ||
62e76326 | 2045 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 2046 | * return the length of the prefix */ |
9bc73deb | 2047 | mb_size_t |
e24f13cd | 2048 | HttpStateData::buildRequestPrefix(MemBuf * mb) |
99edd1c3 | 2049 | { |
2050 | const int offset = mb->size; | |
3872be7c | 2051 | HttpVersion httpver(1,1); |
e24f13cd CT |
2052 | const char * url; |
2053 | if (_peer && !_peer->options.originserver) | |
2054 | url = entry->url(); | |
2055 | else | |
2056 | url = request->urlpath.termedBuf(); | |
c9fd01b4 | 2057 | mb->Printf("%s %s %s/%d.%d\r\n", |
e24f13cd CT |
2058 | RequestMethodStr(request->method), |
2059 | url && *url ? url : "/", | |
c9fd01b4 | 2060 | AnyP::ProtocolType_str[httpver.protocol], |
2fe7eff9 | 2061 | httpver.major,httpver.minor); |
99edd1c3 | 2062 | /* build and pack headers */ |
2063 | { | |
75faaa7a | 2064 | HttpHeader hdr(hoRequest); |
62e76326 | 2065 | Packer p; |
4bf68cfa | 2066 | httpBuildRequestHeader(request, entry, fwd->al, &hdr, flags); |
9e008dda | 2067 | |
450fe1cb | 2068 | if (request->flags.pinned && request->flags.connectionAuth) |
e857372a | 2069 | request->flags.authSent = true; |
d67acb4e | 2070 | else if (hdr.has(HDR_AUTHORIZATION)) |
e857372a | 2071 | request->flags.authSent = true; |
d67acb4e | 2072 | |
62e76326 | 2073 | packerToMemInit(&p, mb); |
a9925b40 | 2074 | hdr.packInto(&p); |
519e0948 | 2075 | hdr.clean(); |
62e76326 | 2076 | packerClean(&p); |
9d9d144b | 2077 | } |
99edd1c3 | 2078 | /* append header terminator */ |
2fe7eff9 | 2079 | mb->append(crlf, 2); |
99edd1c3 | 2080 | return mb->size - offset; |
6bf8443a | 2081 | } |
62e76326 | 2082 | |
090089c4 | 2083 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2084 | bool |
2bb867b5 | 2085 | HttpStateData::sendRequest() |
090089c4 | 2086 | { |
99edd1c3 | 2087 | MemBuf mb; |
090089c4 | 2088 | |
9cf7de1b | 2089 | debugs(11, 5, HERE << serverConnection << ", request " << request << ", this " << this << "."); |
a0297974 | 2090 | |
6b679a01 | 2091 | if (!Comm::IsConnOpen(serverConnection)) { |
9cf7de1b | 2092 | debugs(11,3, HERE << "cannot send request to closing " << serverConnection); |
a0297974 AR |
2093 | assert(closeHandler != NULL); |
2094 | return false; | |
2095 | } | |
2096 | ||
dc56a9b1 | 2097 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2098 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2099 | TimeoutDialer, this, HttpStateData::httpTimeout); |
8d77a37c | 2100 | commSetConnTimeout(serverConnection, Config.Timeout.lifetime, timeoutCall); |
46f4b111 | 2101 | flags.do_next_read = true; |
5f8252d2 | 2102 | maybeReadVirginBody(); |
2103 | ||
e24f13cd | 2104 | if (request->body_pipe != NULL) { |
123ec4de | 2105 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2106 | return false; |
9e008dda | 2107 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2108 | requestSender = JobCallback(11,5, |
4cb2536f | 2109 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2110 | |
2111 | Must(!flags.chunked_request); | |
f228d6f6 | 2112 | // use chunked encoding if we do not know the length |
e24f13cd | 2113 | if (request->content_length < 0) |
46f4b111 | 2114 | flags.chunked_request = true; |
5f8252d2 | 2115 | } else { |
2116 | assert(!requestBodySource); | |
9e008dda | 2117 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2118 | requestSender = JobCallback(11,5, |
39cb8c41 | 2119 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2120 | } |
54220df8 | 2121 | |
e5656c29 AJ |
2122 | flags.originpeer = (_peer != NULL && _peer->options.originserver); |
2123 | flags.proxying = (_peer != NULL && !flags.originpeer); | |
62e76326 | 2124 | |
efb9218c | 2125 | /* |
99edd1c3 | 2126 | * Is keep-alive okay for all request methods? |
efb9218c | 2127 | */ |
450fe1cb | 2128 | if (request->flags.mustKeepalive) |
46f4b111 | 2129 | flags.keepalive = true; |
693cb033 CT |
2130 | else if (request->flags.pinned) |
2131 | flags.keepalive = request->persistent(); | |
d67acb4e | 2132 | else if (!Config.onoff.server_pconns) |
46f4b111 | 2133 | flags.keepalive = false; |
2bb867b5 | 2134 | else if (_peer == NULL) |
46f4b111 | 2135 | flags.keepalive = true; |
2bb867b5 | 2136 | else if (_peer->stats.n_keepalives_sent < 10) |
46f4b111 | 2137 | flags.keepalive = true; |
2bb867b5 | 2138 | else if ((double) _peer->stats.n_keepalives_recv / |
2139 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
46f4b111 | 2140 | flags.keepalive = true; |
2bb867b5 | 2141 | |
2142 | if (_peer) { | |
2ecba5b6 | 2143 | /*The old code here was |
e24f13cd CT |
2144 | if (neighborType(_peer, request) == PEER_SIBLING && ... |
2145 | which is equivalent to: | |
2146 | if (neighborType(_peer, NULL) == PEER_SIBLING && ... | |
2147 | or better: | |
2148 | if (((_peer->type == PEER_MULTICAST && p->options.mcast_siblings) || | |
2149 | _peer->type == PEER_SIBLINGS ) && _peer->options.allow_miss) | |
2150 | flags.only_if_cached = 1; | |
2151 | ||
2152 | But I suppose it was a bug | |
2153 | */ | |
2bb867b5 | 2154 | if (neighborType(_peer, request) == PEER_SIBLING && |
2155 | !_peer->options.allow_miss) | |
46f4b111 | 2156 | flags.only_if_cached = true; |
2bb867b5 | 2157 | |
2158 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2159 | } |
62e76326 | 2160 | |
2fe7eff9 | 2161 | mb.init(); |
9ca29d23 | 2162 | request->peer_host=_peer?_peer->host:NULL; |
e24f13cd | 2163 | buildRequestPrefix(&mb); |
5f8252d2 | 2164 | |
1ce34ddd AJ |
2165 | debugs(11, 2, "HTTP Server " << serverConnection); |
2166 | debugs(11, 2, "HTTP Server REQUEST:\n---------\n" << mb.buf << "\n----------"); | |
2167 | ||
2168 | Comm::Write(serverConnection, &mb, requestSender); | |
5f8252d2 | 2169 | return true; |
090089c4 | 2170 | } |
b6a2f15e | 2171 | |
39cb8c41 AR |
2172 | bool |
2173 | HttpStateData::getMoreRequestBody(MemBuf &buf) | |
2174 | { | |
2175 | // parent's implementation can handle the no-encoding case | |
e31a1e67 | 2176 | if (!flags.chunked_request) |
39cb8c41 AR |
2177 | return ServerStateData::getMoreRequestBody(buf); |
2178 | ||
2179 | MemBuf raw; | |
2180 | ||
2181 | Must(requestBodySource != NULL); | |
2182 | if (!requestBodySource->getMoreData(raw)) | |
2183 | return false; // no request body bytes to chunk yet | |
2184 | ||
2185 | // optimization: pre-allocate buffer size that should be enough | |
2186 | const mb_size_t rawDataSize = raw.contentSize(); | |
2187 | // we may need to send: hex-chunk-size CRLF raw-data CRLF last-chunk | |
2188 | buf.init(16 + 2 + rawDataSize + 2 + 5, raw.max_capacity); | |
2189 | ||
d958d14f | 2190 | buf.Printf("%x\r\n", static_cast<unsigned int>(rawDataSize)); |
39cb8c41 AR |
2191 | buf.append(raw.content(), rawDataSize); |
2192 | buf.Printf("\r\n"); | |
2193 | ||
2194 | Must(rawDataSize > 0); // we did not accidently created last-chunk above | |
2195 | ||
2196 | // Do not send last-chunk unless we successfully received everything | |
2197 | if (receivedWholeRequestBody) { | |
2198 | Must(!flags.sentLastChunk); | |
2199 | flags.sentLastChunk = true; | |
de48b288 | 2200 | buf.append("0\r\n\r\n", 5); |
39cb8c41 AR |
2201 | } |
2202 | ||
2203 | return true; | |
2204 | } | |
2205 | ||
910169e5 | 2206 | void |
b6b6f466 | 2207 | httpStart(FwdState *fwd) |
603a02fd | 2208 | { |
60745f24 | 2209 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
79628299 CT |
2210 | AsyncJob::Start(new HttpStateData(fwd)); |
2211 | } | |
62e76326 | 2212 | |
79628299 CT |
2213 | void |
2214 | HttpStateData::start() | |
2215 | { | |
2216 | if (!sendRequest()) { | |
bf8fe701 | 2217 | debugs(11, 3, "httpStart: aborted"); |
79628299 | 2218 | mustStop("HttpStateData::start failed"); |
5f8252d2 | 2219 | return; |
2220 | } | |
62e76326 | 2221 | |
95dc7ff4 FC |
2222 | ++ statCounter.server.all.requests; |
2223 | ++ statCounter.server.http.requests; | |
62e76326 | 2224 | |
b6a2f15e | 2225 | /* |
2226 | * We used to set the read timeout here, but not any more. | |
2227 | * Now its set in httpSendComplete() after the full request, | |
2228 | * including request body, has been written to the server. | |
2229 | */ | |
090089c4 | 2230 | } |
2231 | ||
39cb8c41 AR |
2232 | /// if broken posts are enabled for the request, try to fix and return true |
2233 | bool | |
2234 | HttpStateData::finishingBrokenPost() | |
2bb867b5 | 2235 | { |
626096be | 2236 | #if USE_HTTP_VIOLATIONS |
39cb8c41 AR |
2237 | if (!Config.accessList.brokenPosts) { |
2238 | debugs(11, 5, HERE << "No brokenPosts list"); | |
2239 | return false; | |
2240 | } | |
a0297974 | 2241 | |
e11513e1 | 2242 | ACLFilledChecklist ch(Config.accessList.brokenPosts, originalRequest(), NULL); |
e0f7153c | 2243 | if (ch.fastCheck() != ACCESS_ALLOWED) { |
39cb8c41 AR |
2244 | debugs(11, 5, HERE << "didn't match brokenPosts"); |
2245 | return false; | |
2246 | } | |
a0297974 | 2247 | |
9cf7de1b | 2248 | if (!Comm::IsConnOpen(serverConnection)) { |
30c48b1a | 2249 | debugs(11, 3, HERE << "ignoring broken POST for closed " << serverConnection); |
39cb8c41 AR |
2250 | assert(closeHandler != NULL); |
2251 | return true; // prevent caller from proceeding as if nothing happened | |
54220df8 | 2252 | } |
39cb8c41 | 2253 | |
30c48b1a | 2254 | debugs(11, 3, "finishingBrokenPost: fixing broken POST"); |
39cb8c41 AR |
2255 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
2256 | requestSender = JobCallback(11,5, | |
2257 | Dialer, this, HttpStateData::wroteLast); | |
b0388924 | 2258 | Comm::Write(serverConnection, "\r\n", 2, requestSender, NULL); |
39cb8c41 AR |
2259 | return true; |
2260 | #else | |
2261 | return false; | |
626096be | 2262 | #endif /* USE_HTTP_VIOLATIONS */ |
39cb8c41 AR |
2263 | } |
2264 | ||
2265 | /// if needed, write last-chunk to end the request body and return true | |
2266 | bool | |
2267 | HttpStateData::finishingChunkedRequest() | |
2268 | { | |
2269 | if (flags.sentLastChunk) { | |
2270 | debugs(11, 5, HERE << "already sent last-chunk"); | |
2271 | return false; | |
2272 | } | |
2273 | ||
2274 | Must(receivedWholeRequestBody); // or we should not be sending last-chunk | |
2275 | flags.sentLastChunk = true; | |
2276 | ||
2277 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
e0d28505 | 2278 | requestSender = JobCallback(11,5, Dialer, this, HttpStateData::wroteLast); |
b0388924 | 2279 | Comm::Write(serverConnection, "0\r\n\r\n", 5, requestSender, NULL); |
39cb8c41 AR |
2280 | return true; |
2281 | } | |
2282 | ||
2283 | void | |
2284 | HttpStateData::doneSendingRequestBody() | |
2285 | { | |
2286 | ServerStateData::doneSendingRequestBody(); | |
9cf7de1b | 2287 | debugs(11,5, HERE << serverConnection); |
39cb8c41 AR |
2288 | |
2289 | // do we need to write something after the last body byte? | |
e31a1e67 | 2290 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2291 | return; |
e31a1e67 | 2292 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2293 | return; |
aa49962c | 2294 | |
39cb8c41 | 2295 | sendComplete(); |
94439e4e | 2296 | } |
2297 | ||
5f8252d2 | 2298 | // more origin request body data is available |
2bb867b5 | 2299 | void |
5f8252d2 | 2300 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2301 | { |
6b679a01 | 2302 | if (eof || !Comm::IsConnOpen(serverConnection)) { |
5f8252d2 | 2303 | // XXX: we should check this condition in other callbacks then! |
2304 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2305 | // as a body consumer when the above condition(s) are detected. | |
e0236918 | 2306 | debugs(11, DBG_IMPORTANT, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2307 | return; |
2308 | } | |
62e76326 | 2309 | |
5f8252d2 | 2310 | assert(requestBodySource != NULL); |
fc68f6b1 | 2311 | |
5f8252d2 | 2312 | if (requestBodySource->buf().hasContent()) { |
2313 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2314 | |
2bb867b5 | 2315 | if (flags.headers_parsed && !flags.abuse_detected) { |
46f4b111 | 2316 | flags.abuse_detected = true; |
e0236918 | 2317 | debugs(11, DBG_IMPORTANT, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2318 | |
585ab260 | 2319 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
8d71285d | 2320 | serverConnection->close(); |
21b92762 | 2321 | return; |
2322 | } | |
2323 | } | |
b6a2f15e | 2324 | } |
5f8252d2 | 2325 | |
2326 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2327 | } |
2328 | ||
5f8252d2 | 2329 | // premature end of the request body |
2bb867b5 | 2330 | void |
5f8252d2 | 2331 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2332 | { |
5f8252d2 | 2333 | ServerStateData::handleRequestBodyProducerAborted(); |
64b66b76 | 2334 | if (entry->isEmpty()) { |
25b481e6 | 2335 | debugs(11, 3, "request body aborted: " << serverConnection); |
8b997339 AR |
2336 | // We usually get here when ICAP REQMOD aborts during body processing. |
2337 | // We might also get here if client-side aborts, but then our response | |
2338 | // should not matter because either client-side will provide its own or | |
2339 | // there will be no response at all (e.g., if the the client has left). | |
913524f0 | 2340 | ErrorState *err = new ErrorState(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, fwd->request); |
129fe2a1 | 2341 | err->detailError(ERR_DETAIL_SRV_REQMOD_REQ_BODY); |
64b66b76 CT |
2342 | fwd->fail(err); |
2343 | } | |
2344 | ||
39cb8c41 | 2345 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2346 | } |
2347 | ||
5f8252d2 | 2348 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2349 | void |
dc56a9b1 | 2350 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2351 | { |
dc56a9b1 | 2352 | if (io.size > 0) |
2353 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2354 | |
dc56a9b1 | 2355 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2356 | } |
3b299123 | 2357 | |
5f8252d2 | 2358 | // Quickly abort the transaction |
2359 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2360 | // including canceling close handlers | |
2361 | void | |
2362 | HttpStateData::abortTransaction(const char *reason) | |
2363 | { | |
2364 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
9cf7de1b | 2365 | "; " << serverConnection << ", this " << this); |
fc68f6b1 | 2366 | |
be364179 | 2367 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d | 2368 | serverConnection->close(); |
3e8c047e | 2369 | return; |
c23f0c74 | 2370 | } |
3e8c047e | 2371 | |
2372 | fwd->handleUnregisteredServerEnd(); | |
79628299 | 2373 | mustStop("HttpStateData::abortTransaction"); |
54220df8 | 2374 | } |