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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
262a0e14 | 3 | * $Id$ |
30a4f2a8 | 4 | * |
5 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) | |
6 | * AUTHOR: Harvest Derived | |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 9 | * ---------------------------------------------------------- |
30a4f2a8 | 10 | * |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
9e008dda | 24 | * |
30a4f2a8 | 25 | * This program is distributed in the hope that it will be useful, |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
9e008dda | 29 | * |
30a4f2a8 | 30 | * You should have received a copy of the GNU General Public License |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
30a4f2a8 | 34 | */ |
019dd986 | 35 | |
4a83b852 | 36 | /* |
37 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 38 | * have a look into http-anon.c to get more informations. |
4a83b852 | 39 | */ |
40 | ||
582c2af2 | 41 | #include "squid.h" |
9ca29d23 | 42 | #include "acl/FilledChecklist.h" |
582c2af2 | 43 | #include "base64.h" |
655daa06 | 44 | #include "base/AsyncJobCalls.h" |
3d93a84d | 45 | #include "base/TextException.h" |
582c2af2 | 46 | #include "client_side.h" |
8d71285d | 47 | #include "comm/Connection.h" |
ec41b64c | 48 | #include "comm/Write.h" |
8b997339 | 49 | #include "err_detail_type.h" |
aa839030 | 50 | #include "errorpage.h" |
fc54b8d2 | 51 | #include "fd.h" |
85bef0a7 | 52 | #include "fde.h" |
655daa06 | 53 | #include "HttpControlMsg.h" |
582c2af2 | 54 | #include "http.h" |
7ebe76de | 55 | #include "HttpHdrCc.h" |
582c2af2 | 56 | #include "HttpHdrContRange.h" |
b19dd748 | 57 | #include "HttpHdrSc.h" |
58 | #include "HttpHdrScTarget.h" | |
fc54b8d2 | 59 | #include "HttpHeaderTools.h" |
9ca29d23 AJ |
60 | #include "HttpReply.h" |
61 | #include "HttpRequest.h" | |
fc54b8d2 | 62 | #include "log/access_log.h" |
9ca29d23 AJ |
63 | #include "MemBuf.h" |
64 | #include "MemObject.h" | |
fc54b8d2 | 65 | #include "neighbors.h" |
582c2af2 | 66 | #include "profiler/Profiler.h" |
9ca29d23 | 67 | #include "protos.h" |
fc54b8d2 | 68 | #include "refresh.h" |
1fa9b1a7 | 69 | #include "rfc1738.h" |
985c86bc | 70 | #include "SquidTime.h" |
e4f1fdae | 71 | #include "StatCounters.h" |
9ca29d23 | 72 | #include "Store.h" |
fc54b8d2 FC |
73 | #include "tools.h" |
74 | #include "URL.h" | |
af0bb8e5 | 75 | |
582c2af2 FC |
76 | #if USE_AUTH |
77 | #include "auth/UserRequest.h" | |
78 | #endif | |
79 | #if USE_DELAY_POOLS | |
80 | #include "DelayPools.h" | |
81 | #endif | |
9ca29d23 | 82 | |
af0bb8e5 | 83 | #define SQUID_ENTER_THROWING_CODE() try { |
84 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
85 | status = true; \ | |
86 | } \ | |
0a8bbeeb AR |
87 | catch (const std::exception &e) { \ |
88 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 89 | status = false; \ |
9e008dda | 90 | } |
e6ccf245 | 91 | |
2afaba07 | 92 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 93 | |
6bf8443a | 94 | static const char *const crlf = "\r\n"; |
4db43fab | 95 | |
f9cece6e | 96 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
e24f13cd | 97 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, |
9e498bfb | 98 | HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags); |
f4698e0b | 99 | //Declared in HttpHeaderTools.cc |
4bf68cfa | 100 | void httpHdrAdd(HttpHeader *heads, HttpRequest *request, const AccessLogEntryPointer &al, HeaderWithAclList &headers_add); |
528b2c61 | 101 | |
dc56a9b1 | 102 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
e1381638 AJ |
103 | lastChunk(0), header_bytes_read(0), reply_bytes_read(0), |
104 | body_bytes_truncated(0), httpChunkDecoder(NULL) | |
2bb867b5 | 105 | { |
106 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 107 | ignoreCacheControl = false; |
108 | surrogateNoStore = false; | |
8d71285d | 109 | serverConnection = fwd->serverConnection(); |
a3d50c30 | 110 | readBuf = new MemBuf; |
9cfb5f4d | 111 | readBuf->init(16*1024, 256*1024); |
a3d50c30 | 112 | |
3ff65596 | 113 | // reset peer response time stats for %<pt |
e24f13cd CT |
114 | request->hier.peer_http_request_sent.tv_sec = 0; |
115 | request->hier.peer_http_request_sent.tv_usec = 0; | |
3ff65596 | 116 | |
5229395c AJ |
117 | if (fwd->serverConnection() != NULL) |
118 | _peer = cbdataReference(fwd->serverConnection()->getPeer()); /* might be NULL */ | |
a3d50c30 | 119 | |
120 | if (_peer) { | |
e24f13cd | 121 | request->flags.proxying = 1; |
a3d50c30 | 122 | /* |
123 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
124 | * We might end up getting the object from somewhere else if, | |
125 | * for example, the request to this neighbor fails. | |
126 | */ | |
127 | if (_peer->options.proxy_only) | |
d88e3c49 | 128 | entry->releaseRequest(); |
a3d50c30 | 129 | |
9a0a18de | 130 | #if USE_DELAY_POOLS |
a3d50c30 | 131 | entry->setNoDelay(_peer->options.no_delay); |
a3d50c30 | 132 | #endif |
a3d50c30 | 133 | } |
134 | ||
135 | /* | |
136 | * register the handler to free HTTP state data when the FD closes | |
137 | */ | |
dc56a9b1 | 138 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
d1c7f781 | 139 | closeHandler = JobCallback(9, 5, Dialer, this, HttpStateData::httpStateConnClosed); |
8d71285d | 140 | comm_add_close_handler(serverConnection->fd, closeHandler); |
2bb867b5 | 141 | } |
b8d8561b | 142 | |
2afaba07 | 143 | HttpStateData::~HttpStateData() |
f5558c95 | 144 | { |
253caccb | 145 | /* |
3b299123 | 146 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 147 | */ |
148 | ||
2afaba07 | 149 | if (!readBuf->isNull()) |
150 | readBuf->clean(); | |
62e76326 | 151 | |
2afaba07 | 152 | delete readBuf; |
153 | ||
9e008dda AJ |
154 | if (httpChunkDecoder) |
155 | delete httpChunkDecoder; | |
af0bb8e5 | 156 | |
5229395c AJ |
157 | cbdataReferenceDone(_peer); |
158 | ||
9cf7de1b | 159 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; " << serverConnection); |
5f8252d2 | 160 | } |
161 | ||
6b679a01 | 162 | const Comm::ConnectionPointer & |
e83cc785 | 163 | HttpStateData::dataConnection() const |
fc68f6b1 | 164 | { |
6b679a01 | 165 | return serverConnection; |
2afaba07 | 166 | } |
8d71285d | 167 | |
9e008dda | 168 | void |
dc56a9b1 | 169 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
170 | { | |
171 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
79628299 | 172 | mustStop("HttpStateData::httpStateConnClosed"); |
f5558c95 | 173 | } |
174 | ||
b8d8561b | 175 | int |
60745f24 | 176 | httpCachable(const HttpRequestMethod& method) |
090089c4 | 177 | { |
090089c4 | 178 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 179 | |
9e008dda | 180 | // TODO: replase to HttpRequestMethod::isCachable() ? |
6eb42cae | 181 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 182 | return 0; |
183 | ||
090089c4 | 184 | /* else cachable */ |
185 | return 1; | |
186 | } | |
187 | ||
dc56a9b1 | 188 | void |
189 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 190 | { |
9cf7de1b | 191 | debugs(11, 4, HERE << serverConnection << ": '" << entry->url() << "'" ); |
62e76326 | 192 | |
12158bdc | 193 | if (entry->store_status == STORE_PENDING) { |
913524f0 | 194 | fwd->fail(new ErrorState(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 195 | } |
62e76326 | 196 | |
8d71285d | 197 | serverConnection->close(); |
090089c4 | 198 | } |
199 | ||
f9cece6e | 200 | static void |
201 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
202 | { | |
914b89a2 | 203 | int remove = 0; |
7e3ce7b9 | 204 | int forbidden = 0; |
f9cece6e | 205 | StoreEntry *pe; |
62e76326 | 206 | |
d46a87a8 | 207 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 208 | return; |
209 | ||
f9cece6e | 210 | switch (status) { |
62e76326 | 211 | |
f9cece6e | 212 | case HTTP_OK: |
62e76326 | 213 | |
f9cece6e | 214 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 215 | |
f9cece6e | 216 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 217 | |
f9cece6e | 218 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 219 | |
f9cece6e | 220 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 221 | |
f9cece6e | 222 | case HTTP_GONE: |
62e76326 | 223 | |
7e3ce7b9 | 224 | case HTTP_NOT_FOUND: |
914b89a2 | 225 | remove = 1; |
62e76326 | 226 | |
227 | break; | |
228 | ||
7e3ce7b9 | 229 | case HTTP_FORBIDDEN: |
62e76326 | 230 | |
7e3ce7b9 | 231 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 232 | forbidden = 1; |
233 | ||
234 | break; | |
235 | ||
f9cece6e | 236 | #if WORK_IN_PROGRESS |
62e76326 | 237 | |
c8fd0193 | 238 | case HTTP_UNAUTHORIZED: |
62e76326 | 239 | forbidden = 1; |
240 | ||
241 | break; | |
242 | ||
f9cece6e | 243 | #endif |
62e76326 | 244 | |
f9cece6e | 245 | default: |
7e3ce7b9 | 246 | #if QUESTIONABLE |
62e76326 | 247 | /* |
248 | * Any 2xx response should eject previously cached entities... | |
249 | */ | |
abb929f0 | 250 | |
62e76326 | 251 | if (status >= 200 && status < 300) |
914b89a2 | 252 | remove = 1; |
62e76326 | 253 | |
7e3ce7b9 | 254 | #endif |
62e76326 | 255 | |
256 | break; | |
f9cece6e | 257 | } |
62e76326 | 258 | |
914b89a2 | 259 | if (!remove && !forbidden) |
62e76326 | 260 | return; |
261 | ||
f9cece6e | 262 | assert(e->mem_obj); |
62e76326 | 263 | |
f66a9ef4 | 264 | if (e->mem_obj->request) |
62e76326 | 265 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 266 | else |
62e76326 | 267 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
268 | ||
f66a9ef4 | 269 | if (pe != NULL) { |
62e76326 | 270 | assert(e != pe); |
d9129474 | 271 | #if USE_HTCP |
8dceeee3 | 272 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 273 | #endif |
5f33b71d | 274 | pe->release(); |
0856d155 | 275 | } |
62e76326 | 276 | |
914b89a2 | 277 | /** \par |
7e3ce7b9 | 278 | * Also remove any cached HEAD response in case the object has |
279 | * changed. | |
280 | */ | |
f66a9ef4 | 281 | if (e->mem_obj->request) |
62e76326 | 282 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 283 | else |
62e76326 | 284 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
285 | ||
f66a9ef4 | 286 | if (pe != NULL) { |
62e76326 | 287 | assert(e != pe); |
d9129474 | 288 | #if USE_HTCP |
8dceeee3 | 289 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 290 | #endif |
5f33b71d | 291 | pe->release(); |
7e3ce7b9 | 292 | } |
f9cece6e | 293 | } |
294 | ||
43ae1d95 | 295 | void |
296 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
297 | { | |
43ae1d95 | 298 | if (request->flags.accelerated && reply->surrogate_control) { |
45a58345 | 299 | HttpHdrScTarget *sctusable = reply->surrogate_control->getMergedTarget(Config.Accel.surrogate_id); |
43ae1d95 | 300 | |
301 | if (sctusable) { | |
45a58345 | 302 | if (sctusable->noStore() || |
43ae1d95 | 303 | (Config.onoff.surrogate_is_remote |
45a58345 | 304 | && sctusable->noStoreRemote())) { |
43ae1d95 | 305 | surrogateNoStore = true; |
5ed72359 | 306 | entry->makePrivate(); |
43ae1d95 | 307 | } |
308 | ||
309 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
310 | * accelerated request or not... | |
45cca89d | 311 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 312 | */ |
45a58345 FC |
313 | if (sctusable->hasMaxAge()) { |
314 | if (sctusable->maxAge() < sctusable->maxStale()) | |
315 | reply->expires = reply->date + sctusable->maxAge(); | |
43ae1d95 | 316 | else |
45a58345 | 317 | reply->expires = reply->date + sctusable->maxStale(); |
43ae1d95 | 318 | |
319 | /* And update the timestamps */ | |
3900307b | 320 | entry->timestampsSet(); |
43ae1d95 | 321 | } |
322 | ||
323 | /* We ignore cache-control directives as per the Surrogate specification */ | |
324 | ignoreCacheControl = true; | |
325 | ||
45a58345 | 326 | delete sctusable; |
43ae1d95 | 327 | } |
328 | } | |
43ae1d95 | 329 | } |
330 | ||
924f73bc | 331 | int |
332 | HttpStateData::cacheableReply() | |
c54e9052 | 333 | { |
585ab260 | 334 | HttpReply const *rep = finalReply(); |
528b2c61 | 335 | HttpHeader const *hdr = &rep->header; |
c68e9c6b | 336 | const char *v; |
626096be | 337 | #if USE_HTTP_VIOLATIONS |
62e76326 | 338 | |
38f9c547 | 339 | const refresh_t *R = NULL; |
b6445726 | 340 | |
346be6ad | 341 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 342 | * and then checks if the specified flag is set. The main purpose |
626096be | 343 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 344 | * condition |
345 | */ | |
346 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 347 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
348 | (R && R->flags.flag)) | |
b445957e | 349 | #else |
350 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 351 | #endif |
43ae1d95 | 352 | |
38f9c547 | 353 | if (surrogateNoStore) |
62e76326 | 354 | return 0; |
355 | ||
8466a4af AR |
356 | // RFC 2616: do not cache replies to responses with no-store CC directive |
357 | if (request && request->cache_control && | |
4ce6e3b5 | 358 | request->cache_control->noStore() && |
ab745b44 | 359 | !REFRESH_OVERRIDE(ignore_no_store)) |
8466a4af AR |
360 | return 0; |
361 | ||
cf7c2e94 | 362 | if (!ignoreCacheControl && request->cache_control != NULL) { |
f9517ad8 | 363 | const HttpHdrCc* cc=request->cache_control; |
4ce6e3b5 | 364 | if (cc->Private()) { |
b6445726 | 365 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 366 | return 0; |
367 | } | |
368 | ||
4ce6e3b5 | 369 | if (cc->noCache()) { |
b6445726 | 370 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 371 | return 0; |
372 | } | |
373 | ||
4ce6e3b5 | 374 | if (cc->noStore()) { |
b6445726 | 375 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 376 | return 0; |
377 | } | |
43ae1d95 | 378 | } |
379 | ||
d67acb4e | 380 | if (request->flags.auth || request->flags.auth_sent) { |
62e76326 | 381 | /* |
382 | * Responses to requests with authorization may be cached | |
383 | * only if a Cache-Control: public reply header is present. | |
384 | * RFC 2068, sec 14.9.4 | |
385 | */ | |
386 | ||
f308e116 | 387 | if (!request->cache_control || !request->cache_control->Public()) { |
b6445726 | 388 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 389 | return 0; |
390 | } | |
a6dfe2d9 | 391 | } |
62e76326 | 392 | |
c68e9c6b | 393 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
394 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 395 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 396 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 397 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 398 | s.clean(); |
62e76326 | 399 | |
38f9c547 | 400 | if (no_cache) { |
b6445726 | 401 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 402 | return 0; |
403 | } | |
c68e9c6b | 404 | } |
62e76326 | 405 | |
c68e9c6b | 406 | /* |
407 | * The "multipart/x-mixed-replace" content type is used for | |
408 | * continuous push replies. These are generally dynamic and | |
409 | * probably should not be cachable | |
410 | */ | |
a9925b40 | 411 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 412 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
413 | return 0; | |
414 | ||
585ab260 | 415 | switch (rep->sline.status) { |
62e76326 | 416 | /* Responses that are cacheable */ |
417 | ||
19a04dac | 418 | case HTTP_OK: |
62e76326 | 419 | |
19a04dac | 420 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 421 | |
19a04dac | 422 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 423 | |
19a04dac | 424 | case HTTP_MOVED_PERMANENTLY: |
6bc67152 | 425 | case HTTP_PERMANENT_REDIRECT: |
62e76326 | 426 | |
19a04dac | 427 | case HTTP_GONE: |
62e76326 | 428 | /* |
429 | * Don't cache objects that need to be refreshed on next request, | |
430 | * unless we know how to refresh it. | |
431 | */ | |
432 | ||
3d8b6ba4 | 433 | if (!refreshIsCachable(entry) && !REFRESH_OVERRIDE(store_stale)) { |
bf8fe701 | 434 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 435 | return 0; |
ca34dacd | 436 | } else |
62e76326 | 437 | return 1; |
438 | ||
62e76326 | 439 | /* NOTREACHED */ |
440 | break; | |
441 | ||
442 | /* Responses that only are cacheable if the server says so */ | |
443 | ||
19a04dac | 444 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 445 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 446 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 447 | return 1; |
448 | else | |
449 | return 0; | |
450 | ||
451 | /* NOTREACHED */ | |
452 | break; | |
453 | ||
454 | /* Errors can be negatively cached */ | |
455 | ||
19a04dac | 456 | case HTTP_NO_CONTENT: |
62e76326 | 457 | |
19a04dac | 458 | case HTTP_USE_PROXY: |
62e76326 | 459 | |
19a04dac | 460 | case HTTP_BAD_REQUEST: |
62e76326 | 461 | |
19a04dac | 462 | case HTTP_FORBIDDEN: |
62e76326 | 463 | |
19a04dac | 464 | case HTTP_NOT_FOUND: |
62e76326 | 465 | |
19a04dac | 466 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 467 | |
19a04dac | 468 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 469 | |
19a04dac | 470 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 471 | |
19a04dac | 472 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 473 | |
19a04dac | 474 | case HTTP_BAD_GATEWAY: |
62e76326 | 475 | |
19a04dac | 476 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 477 | |
19a04dac | 478 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 479 | return -1; |
480 | ||
481 | /* NOTREACHED */ | |
482 | break; | |
483 | ||
484 | /* Some responses can never be cached */ | |
485 | ||
0cdcddb9 | 486 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 487 | |
19a04dac | 488 | case HTTP_SEE_OTHER: |
62e76326 | 489 | |
19a04dac | 490 | case HTTP_NOT_MODIFIED: |
62e76326 | 491 | |
19a04dac | 492 | case HTTP_UNAUTHORIZED: |
62e76326 | 493 | |
19a04dac | 494 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 495 | |
0cdcddb9 | 496 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 497 | |
498 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 499 | |
500 | case HTTP_PAYMENT_REQUIRED: | |
501 | case HTTP_NOT_ACCEPTABLE: | |
502 | case HTTP_REQUEST_TIMEOUT: | |
503 | case HTTP_CONFLICT: | |
504 | case HTTP_LENGTH_REQUIRED: | |
505 | case HTTP_PRECONDITION_FAILED: | |
506 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
507 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
508 | case HTTP_UNPROCESSABLE_ENTITY: | |
509 | case HTTP_LOCKED: | |
510 | case HTTP_FAILED_DEPENDENCY: | |
511 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 512 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
513 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 514 | |
62e76326 | 515 | return 0; |
516 | ||
41217979 AJ |
517 | default: |
518 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
519 | debugs (11, 3, HERE << "Unknown HTTP status code " << rep->sline.status << ". Not cacheable."); | |
62e76326 | 520 | |
521 | return 0; | |
522 | ||
523 | /* NOTREACHED */ | |
524 | break; | |
c54e9052 | 525 | } |
62e76326 | 526 | |
79d39a72 | 527 | /* NOTREACHED */ |
c54e9052 | 528 | } |
090089c4 | 529 | |
f66a9ef4 | 530 | /* |
9e008dda | 531 | * For Vary, store the relevant request headers as |
f66a9ef4 | 532 | * virtual headers in the reply |
533 | * Returns false if the variance cannot be stored | |
534 | */ | |
535 | const char * | |
190154cf | 536 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 537 | { |
30abd221 | 538 | String vary, hdr; |
f66a9ef4 | 539 | const char *pos = NULL; |
540 | const char *item; | |
541 | const char *value; | |
542 | int ilen; | |
30abd221 | 543 | static String vstr; |
f66a9ef4 | 544 | |
30abd221 | 545 | vstr.clean(); |
a9925b40 | 546 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 547 | |
f66a9ef4 | 548 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 549 | char *name = (char *)xmalloc(ilen + 1); |
550 | xstrncpy(name, item, ilen + 1); | |
551 | Tolower(name); | |
9776e3cc | 552 | |
553 | if (strcmp(name, "*") == 0) { | |
554 | /* Can not handle "Vary: *" withtout ETag support */ | |
555 | safe_free(name); | |
30abd221 | 556 | vstr.clean(); |
9776e3cc | 557 | break; |
558 | } | |
559 | ||
62e76326 | 560 | strListAdd(&vstr, name, ','); |
a9925b40 | 561 | hdr = request->header.getByName(name); |
62e76326 | 562 | safe_free(name); |
d53b3f6d | 563 | value = hdr.termedBuf(); |
62e76326 | 564 | |
565 | if (value) { | |
566 | value = rfc1738_escape_part(value); | |
567 | vstr.append("=\"", 2); | |
568 | vstr.append(value); | |
569 | vstr.append("\"", 1); | |
570 | } | |
571 | ||
30abd221 | 572 | hdr.clean(); |
f66a9ef4 | 573 | } |
62e76326 | 574 | |
30abd221 | 575 | vary.clean(); |
f66a9ef4 | 576 | #if X_ACCELERATOR_VARY |
62e76326 | 577 | |
aa38be4a | 578 | pos = NULL; |
a9925b40 | 579 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 580 | |
f66a9ef4 | 581 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 582 | char *name = (char *)xmalloc(ilen + 1); |
583 | xstrncpy(name, item, ilen + 1); | |
584 | Tolower(name); | |
585 | strListAdd(&vstr, name, ','); | |
a9925b40 | 586 | hdr = request->header.getByName(name); |
62e76326 | 587 | safe_free(name); |
d53b3f6d | 588 | value = hdr.termedBuf(); |
62e76326 | 589 | |
590 | if (value) { | |
591 | value = rfc1738_escape_part(value); | |
592 | vstr.append("=\"", 2); | |
593 | vstr.append(value); | |
594 | vstr.append("\"", 1); | |
595 | } | |
596 | ||
30abd221 | 597 | hdr.clean(); |
f66a9ef4 | 598 | } |
62e76326 | 599 | |
30abd221 | 600 | vary.clean(); |
f66a9ef4 | 601 | #endif |
62e76326 | 602 | |
d53b3f6d FC |
603 | debugs(11, 3, "httpMakeVaryMark: " << vstr); |
604 | return vstr.termedBuf(); | |
f66a9ef4 | 605 | } |
606 | ||
2afaba07 | 607 | void |
608 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
609 | { | |
610 | if (flags.keepalive) | |
611 | if (_peer) | |
95dc7ff4 | 612 | ++ _peer->stats.n_keepalives_sent; |
2afaba07 | 613 | |
614 | if (reply->keep_alive) { | |
615 | if (_peer) | |
95dc7ff4 | 616 | ++ _peer->stats.n_keepalives_recv; |
2afaba07 | 617 | |
af6a12ee AJ |
618 | if (Config.onoff.detect_broken_server_pconns |
619 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
e0236918 | 620 | debugs(11, DBG_IMPORTANT, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
bf8fe701 | 621 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); |
2afaba07 | 622 | flags.keepalive_broken = 1; |
623 | } | |
624 | } | |
625 | } | |
626 | ||
627 | void | |
628 | HttpStateData::checkDateSkew(HttpReply *reply) | |
629 | { | |
630 | if (reply->date > -1 && !_peer) { | |
631 | int skew = abs((int)(reply->date - squid_curtime)); | |
632 | ||
633 | if (skew > 86400) | |
cc192b50 | 634 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 635 | } |
636 | } | |
637 | ||
073ba374 | 638 | /** |
4eb368f9 | 639 | * This creates the error page itself.. its likely |
640 | * that the forward ported reply header max size patch | |
641 | * generates non http conformant error pages - in which | |
642 | * case the errors where should be 'BAD_GATEWAY' etc | |
643 | */ | |
b8d8561b | 644 | void |
2afaba07 | 645 | HttpStateData::processReplyHeader() |
f5558c95 | 646 | { |
073ba374 | 647 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 AJ |
648 | |
649 | /* NP: all exit points to this function MUST call ctx_exit(ctx) */ | |
82384411 | 650 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
859f1666 | 651 | |
bf8fe701 | 652 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 653 | |
1a98175f | 654 | assert(!flags.headers_parsed); |
62e76326 | 655 | |
859f1666 AJ |
656 | if (!readBuf->hasContent()) { |
657 | ctx_exit(ctx); | |
b73a07d6 | 658 | return; |
859f1666 | 659 | } |
b73a07d6 | 660 | |
2afaba07 | 661 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 662 | |
585ab260 | 663 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 664 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 665 | |
e77d7ef0 | 666 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0 && strncmp(readBuf->content(), "ICY", 3) != 0) { |
9e008dda AJ |
667 | MemBuf *mb; |
668 | HttpReply *tmprep = new HttpReply; | |
11992b6f | 669 | tmprep->setHeaders(HTTP_OK, "Gatewaying", NULL, -1, -1, -1); |
9e008dda AJ |
670 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); |
671 | mb = tmprep->pack(); | |
672 | newrep->parse(mb, eof, &error); | |
ddbe383d | 673 | delete mb; |
9e008dda AJ |
674 | delete tmprep; |
675 | } else { | |
676 | if (!parsed && error > 0) { // unrecoverable parsing error | |
677 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
678 | flags.headers_parsed = 1; | |
871c031f | 679 | newrep->sline.version = HttpVersion(1,1); |
9e008dda AJ |
680 | newrep->sline.status = error; |
681 | HttpReply *vrep = setVirginReply(newrep); | |
682 | entry->replaceHttpReply(vrep); | |
683 | ctx_exit(ctx); | |
684 | return; | |
685 | } | |
686 | ||
687 | if (!parsed) { // need more data | |
688 | assert(!error); | |
689 | assert(!eof); | |
690 | delete newrep; | |
691 | ctx_exit(ctx); | |
692 | return; | |
693 | } | |
694 | ||
1ce34ddd AJ |
695 | debugs(11, 2, "HTTP Server " << serverConnection); |
696 | debugs(11, 2, "HTTP Server REPLY:\n---------\n" << readBuf->content() << "\n----------"); | |
9e008dda AJ |
697 | |
698 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
699 | readBuf->consume(header_bytes_read); | |
f5558c95 | 700 | } |
62e76326 | 701 | |
c679653d | 702 | newrep->removeStaleWarnings(); |
3d9e71e6 | 703 | |
0c3d3f65 | 704 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->sline.status >= 100 && newrep->sline.status < 200) { |
655daa06 | 705 | handle1xx(newrep); |
3d9e71e6 | 706 | ctx_exit(ctx); |
3d9e71e6 AJ |
707 | return; |
708 | } | |
709 | ||
af0bb8e5 | 710 | flags.chunked = 0; |
0c3d3f65 | 711 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->header.chunked()) { |
9e008dda AJ |
712 | flags.chunked = 1; |
713 | httpChunkDecoder = new ChunkedCodingParser; | |
af0bb8e5 | 714 | } |
715 | ||
9e008dda | 716 | if (!peerSupportsConnectionPinning()) |
e24f13cd | 717 | request->flags.connection_auth_disabled = 1; |
d67acb4e | 718 | |
585ab260 | 719 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 720 | flags.headers_parsed = 1; |
721 | ||
585ab260 | 722 | keepaliveAccounting(vrep); |
47ac2ebe | 723 | |
585ab260 | 724 | checkDateSkew(vrep); |
47ac2ebe | 725 | |
585ab260 | 726 | processSurrogateControl (vrep); |
528b2c61 | 727 | |
073ba374 | 728 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 729 | * Parse the header and remove all referenced headers |
730 | */ | |
731 | ||
e24f13cd | 732 | request->hier.peer_reply_status = newrep->sline.status; |
3ff65596 | 733 | |
2afaba07 | 734 | ctx_exit(ctx); |
735 | } | |
736 | ||
655daa06 AR |
737 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
738 | void | |
739 | HttpStateData::handle1xx(HttpReply *reply) | |
740 | { | |
741 | HttpMsgPointerT<HttpReply> msg(reply); // will destroy reply if unused | |
742 | ||
743 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
744 | Must(!flags.handling1xx); | |
745 | flags.handling1xx = true; | |
746 | ||
e24f13cd | 747 | if (!request->canHandle1xx()) { |
655daa06 AR |
748 | debugs(11, 2, HERE << "ignoring client-unsupported 1xx"); |
749 | proceedAfter1xx(); | |
750 | return; | |
751 | } | |
752 | ||
753 | #if USE_HTTP_VIOLATIONS | |
754 | // check whether the 1xx response forwarding is allowed by squid.conf | |
755 | if (Config.accessList.reply) { | |
e11513e1 | 756 | ACLFilledChecklist ch(Config.accessList.reply, originalRequest(), NULL); |
655daa06 | 757 | ch.reply = HTTPMSGLOCK(reply); |
e0f7153c | 758 | if (ch.fastCheck() != ACCESS_ALLOWED) { // TODO: support slow lookups? |
655daa06 AR |
759 | debugs(11, 3, HERE << "ignoring denied 1xx"); |
760 | proceedAfter1xx(); | |
761 | return; | |
de48b288 | 762 | } |
655daa06 AR |
763 | } |
764 | #endif // USE_HTTP_VIOLATIONS | |
765 | ||
766 | debugs(11, 2, HERE << "forwarding 1xx to client"); | |
767 | ||
768 | // the Sink will use this to call us back after writing 1xx to the client | |
769 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
770 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 771 | HttpStateData::proceedAfter1xx); |
e24f13cd | 772 | CallJobHere1(11, 4, request->clientConnectionManager, ConnStateData, |
655daa06 AR |
773 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); |
774 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
775 | // will terminate due to an aborted store entry or another similar error. | |
776 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
777 | // for similar reasons without a 1xx response. | |
778 | } | |
779 | ||
780 | /// restores state and resumes processing after 1xx is ignored or forwarded | |
781 | void | |
782 | HttpStateData::proceedAfter1xx() | |
783 | { | |
784 | Must(flags.handling1xx); | |
785 | ||
786 | debugs(11, 2, HERE << "consuming " << header_bytes_read << | |
de48b288 | 787 | " header and " << reply_bytes_read << " body bytes read after 1xx"); |
655daa06 AR |
788 | header_bytes_read = 0; |
789 | reply_bytes_read = 0; | |
790 | ||
791 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); | |
792 | } | |
793 | ||
d67acb4e AJ |
794 | /** |
795 | * returns true if the peer can support connection pinning | |
796 | */ | |
797 | bool HttpStateData::peerSupportsConnectionPinning() const | |
798 | { | |
799 | const HttpReply *rep = entry->mem_obj->getReply(); | |
800 | const HttpHeader *hdr = &rep->header; | |
801 | bool rc; | |
802 | String header; | |
803 | ||
804 | if (!_peer) | |
9e008dda AJ |
805 | return true; |
806 | ||
807 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
808 | connections) return false |
809 | */ | |
810 | if (!_peer->connection_auth) | |
9e008dda | 811 | return false; |
d67acb4e | 812 | |
9e008dda | 813 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
814 | is not unauthorized, so the related connection can be pinned |
815 | */ | |
816 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
817 | return true; |
818 | ||
819 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
820 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
821 | connections |
822 | */ | |
823 | if (_peer->connection_auth == 1) | |
9e008dda | 824 | return true; |
d67acb4e | 825 | |
9e008dda AJ |
826 | /*At this point peer has configured with "connection-auth=auto" |
827 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
828 | to allow pinned connections or not |
829 | */ | |
830 | ||
9e008dda | 831 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
832 | pinning (squid 2.6 behaviour) |
833 | */ | |
834 | if (_peer->options.originserver) | |
9e008dda | 835 | return true; |
d67acb4e AJ |
836 | |
837 | /*if the connections it is already pinned it is OK*/ | |
838 | if (request->flags.pinned) | |
9e008dda AJ |
839 | return true; |
840 | ||
841 | /*Allow pinned connections only if the Proxy-support header exists in | |
842 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
843 | which means that the peer supports connection pinning. |
844 | */ | |
845 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 846 | return false; |
d67acb4e AJ |
847 | |
848 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
849 | /* XXX This ought to be done in a case-insensitive manner */ | |
d53b3f6d | 850 | rc = (strstr(header.termedBuf(), "Session-Based-Authentication") != NULL); |
d67acb4e AJ |
851 | |
852 | return rc; | |
853 | } | |
854 | ||
5f8252d2 | 855 | // Called when we parsed (and possibly adapted) the headers but |
856 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 857 | void |
858 | HttpStateData::haveParsedReplyHeaders() | |
859 | { | |
c1520b67 AJ |
860 | ServerStateData::haveParsedReplyHeaders(); |
861 | ||
2afaba07 | 862 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 863 | HttpReply *rep = finalReply(); |
2afaba07 | 864 | |
585ab260 | 865 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
866 | rep->content_range) | |
867 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 868 | |
3900307b | 869 | entry->timestampsSet(); |
62e76326 | 870 | |
9bc73deb | 871 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 872 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 873 | |
9bc73deb | 874 | if (neighbors_do_private_keys) |
585ab260 | 875 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 876 | |
585ab260 | 877 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 878 | #if X_ACCELERATOR_VARY |
585ab260 | 879 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 880 | #endif |
4b44c907 | 881 | ) { |
e24f13cd | 882 | const char *vary = httpMakeVaryMark(request, rep); |
4b44c907 | 883 | |
884 | if (!vary) { | |
5ed72359 | 885 | entry->makePrivate(); |
d7d3253b AJ |
886 | if (!fwd->reforwardableStatus(rep->sline.status)) |
887 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); | |
4b44c907 | 888 | goto no_cache; |
62e76326 | 889 | } |
890 | ||
4b44c907 | 891 | entry->mem_obj->vary_headers = xstrdup(vary); |
892 | } | |
893 | ||
2afaba07 | 894 | /* |
895 | * If its not a reply that we will re-forward, then | |
896 | * allow the client to get it. | |
897 | */ | |
585ab260 | 898 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 899 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
900 | ||
4b44c907 | 901 | switch (cacheableReply()) { |
902 | ||
903 | case 1: | |
5ed72359 | 904 | entry->makePublic(); |
62e76326 | 905 | break; |
906 | ||
9bc73deb | 907 | case 0: |
5ed72359 | 908 | entry->makePrivate(); |
62e76326 | 909 | break; |
910 | ||
9bc73deb | 911 | case -1: |
4b44c907 | 912 | |
626096be | 913 | #if USE_HTTP_VIOLATIONS |
4b44c907 | 914 | if (Config.negativeTtl > 0) |
5ed72359 | 915 | entry->cacheNegatively(); |
4b44c907 | 916 | else |
ac9cc053 | 917 | #endif |
5ed72359 | 918 | entry->makePrivate(); |
4b44c907 | 919 | |
62e76326 | 920 | break; |
921 | ||
9bc73deb | 922 | default: |
62e76326 | 923 | assert(0); |
4b44c907 | 924 | |
62e76326 | 925 | break; |
9bc73deb | 926 | } |
62e76326 | 927 | |
4b44c907 | 928 | no_cache: |
929 | ||
585ab260 | 930 | if (!ignoreCacheControl && rep->cache_control) { |
4ce6e3b5 FC |
931 | if (rep->cache_control->proxyRevalidate() || |
932 | rep->cache_control->mustRevalidate() || | |
d74ad83f | 933 | rep->cache_control->hasSMaxAge() |
77da1817 | 934 | ) |
62e76326 | 935 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 936 | } |
62e76326 | 937 | |
c3609322 | 938 | #if HEADERS_LOG |
585ab260 | 939 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 940 | |
c3609322 | 941 | #endif |
5f8252d2 | 942 | |
943 | ctx_exit(ctx); | |
f5558c95 | 944 | } |
945 | ||
528b2c61 | 946 | HttpStateData::ConnectionStatus |
947 | HttpStateData::statusIfComplete() const | |
603a02fd | 948 | { |
585ab260 | 949 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
950 | /** \par |
951 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 952 | |
2afaba07 | 953 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 954 | return COMPLETE_NONPERSISTENT_MSG; |
955 | ||
073ba374 AJ |
956 | /** \par |
957 | * If we didn't send a keep-alive request header, then this | |
978e455f | 958 | * can not be a persistent connection. |
959 | */ | |
528b2c61 | 960 | if (!flags.keepalive) |
62e76326 | 961 | return COMPLETE_NONPERSISTENT_MSG; |
962 | ||
073ba374 | 963 | /** \par |
72b63f06 | 964 | * If we haven't sent the whole request then this can not be a persistent |
965 | * connection. | |
966 | */ | |
967 | if (!flags.request_sent) { | |
e24f13cd | 968 | debugs(11, 2, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 969 | return COMPLETE_NONPERSISTENT_MSG; |
970 | } | |
971 | ||
073ba374 | 972 | /** \par |
9f5a2895 | 973 | * What does the reply have to say about keep-alive? |
974 | */ | |
073ba374 AJ |
975 | /** |
976 | \bug XXX BUG? | |
b6a2f15e | 977 | * If the origin server (HTTP/1.0) does not send a keep-alive |
978 | * header, but keeps the connection open anyway, what happens? | |
979 | * We'll return here and http.c waits for an EOF before changing | |
980 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
981 | * and an error status code, and we might have to wait until | |
982 | * the server times out the socket. | |
983 | */ | |
2afaba07 | 984 | if (!rep->keep_alive) |
528b2c61 | 985 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 986 | |
528b2c61 | 987 | return COMPLETE_PERSISTENT_MSG; |
988 | } | |
989 | ||
990 | HttpStateData::ConnectionStatus | |
991 | HttpStateData::persistentConnStatus() const | |
992 | { | |
9cf7de1b | 993 | debugs(11, 3, HERE << serverConnection << " eof=" << eof); |
839291ac AJ |
994 | if (eof) // already reached EOF |
995 | return COMPLETE_NONPERSISTENT_MSG; | |
996 | ||
505c2f28 AR |
997 | /* If server fd is closing (but we have not been notified yet), stop Comm |
998 | I/O to avoid assertions. TODO: Change Comm API to handle callers that | |
999 | want more I/O after async closing (usually initiated by others). */ | |
1000 | // XXX: add canReceive or s/canSend/canTalkToServer/ | |
e7cea0ed | 1001 | if (!Comm::IsConnOpen(serverConnection)) |
505c2f28 AR |
1002 | return COMPLETE_NONPERSISTENT_MSG; |
1003 | ||
9035d1d5 AJ |
1004 | /** \par |
1005 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1006 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 1007 | * decide if we can be persistant |
af0bb8e5 | 1008 | */ |
839291ac | 1009 | if (lastChunk && flags.chunked) |
9e008dda | 1010 | return statusIfComplete(); |
af0bb8e5 | 1011 | |
718d84bf AR |
1012 | const HttpReply *vrep = virginReply(); |
1013 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
1014 | ||
47f6e231 | 1015 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1016 | |
bf8fe701 | 1017 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1018 | |
35282fbf | 1019 | /* If the body size is unknown we must wait for EOF */ |
1020 | if (clen < 0) | |
62e76326 | 1021 | return INCOMPLETE_MSG; |
1022 | ||
9035d1d5 AJ |
1023 | /** \par |
1024 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1025 | if (clen > 0) { |
1026 | // old technique: | |
585ab260 | 1027 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 1028 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 1029 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 1030 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 1031 | |
585ab260 | 1032 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 1033 | return INCOMPLETE_MSG; |
821beb5e AR |
1034 | |
1035 | if (body_bytes_truncated > 0) // already read more than needed | |
1036 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns | |
5f8252d2 | 1037 | } |
62e76326 | 1038 | |
9035d1d5 AJ |
1039 | /** \par |
1040 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1041 | return statusIfComplete(); |
603a02fd | 1042 | } |
090089c4 | 1043 | |
2afaba07 | 1044 | /* |
1045 | * This is the callback after some data has been read from the network | |
1046 | */ | |
dc56a9b1 | 1047 | /* |
e5ee81f0 | 1048 | void |
d53b3f6d | 1049 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) |
c4b7a5a9 | 1050 | { |
1051 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
8d71285d | 1052 | assert (fd == httpState->serverConnection->fd); |
d53b3f6d | 1053 | // assert(buf == readBuf->content()); |
1d5161bd | 1054 | PROF_start(HttpStateData_readReply); |
e6edd8df | 1055 | httpState->readReply(len, flag, xerrno); |
1d5161bd | 1056 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1057 | } |
dc56a9b1 | 1058 | */ |
073ba374 | 1059 | |
2afdbf48 | 1060 | /* XXX this function is too long! */ |
c4b7a5a9 | 1061 | void |
e6edd8df | 1062 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1063 | { |
30a4f2a8 | 1064 | int bin; |
090089c4 | 1065 | int clen; |
dc56a9b1 | 1066 | int len = io.size; |
c4b7a5a9 | 1067 | |
dc56a9b1 | 1068 | flags.do_next_read = 0; |
9e008dda | 1069 | |
3e4bebf8 | 1070 | debugs(11, 5, HERE << io.conn << ": len " << len << "."); |
62e76326 | 1071 | |
7a7cc03f | 1072 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1073 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1074 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1075 | return; |
1076 | } | |
1077 | ||
e92e4e44 | 1078 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 | 1079 | abortTransaction("store entry aborted while reading reply"); |
62e76326 | 1080 | return; |
e92e4e44 | 1081 | } |
c4b7a5a9 | 1082 | |
fdf55365 | 1083 | // handle I/O errors |
dc56a9b1 | 1084 | if (io.flag != COMM_OK || len < 0) { |
3e4bebf8 | 1085 | debugs(11, 2, HERE << io.conn << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1086 | |
dc56a9b1 | 1087 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1088 | flags.do_next_read = 1; |
1089 | } else { | |
913524f0 | 1090 | ErrorState *err = new ErrorState(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
dc56a9b1 | 1091 | err->xerrno = io.xerrno; |
fdf55365 | 1092 | fwd->fail(err); |
1093 | flags.do_next_read = 0; | |
8d71285d | 1094 | serverConnection->close(); |
fdf55365 | 1095 | } |
1096 | ||
1097 | return; | |
1098 | } | |
1099 | ||
7a7cc03f | 1100 | // update I/O stats |
fdf55365 | 1101 | if (len > 0) { |
2afaba07 | 1102 | readBuf->appended(len); |
5f8252d2 | 1103 | reply_bytes_read += len; |
9a0a18de | 1104 | #if USE_DELAY_POOLS |
2afaba07 | 1105 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); |
62e76326 | 1106 | delayId.bytesIn(len); |
447e176b | 1107 | #endif |
62e76326 | 1108 | |
e4f1fdae FC |
1109 | kb_incr(&(statCounter.server.all.kbytes_in), len); |
1110 | kb_incr(&(statCounter.server.http.kbytes_in), len); | |
95dc7ff4 | 1111 | ++ IOStats.Http.reads; |
62e76326 | 1112 | |
95dc7ff4 | 1113 | for (clen = len - 1, bin = 0; clen; ++bin) |
62e76326 | 1114 | clen >>= 1; |
1115 | ||
95dc7ff4 | 1116 | ++ IOStats.Http.read_hist[bin]; |
3ff65596 AR |
1117 | |
1118 | // update peer response time stats (%<pt) | |
e24f13cd CT |
1119 | const timeval &sent = request->hier.peer_http_request_sent; |
1120 | request->hier.peer_response_time = | |
3ff65596 | 1121 | sent.tv_sec ? tvSubMsec(sent, current_time) : -1; |
30a4f2a8 | 1122 | } |
62e76326 | 1123 | |
073ba374 AJ |
1124 | /** \par |
1125 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1126 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1127 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1128 | * not allowing connection reuse in the first place. | |
648f6eb2 AJ |
1129 | * |
1130 | * 2012-02-10: which RFC? not 2068 or 2616, | |
1131 | * tolerance there is all about whitespace between requests and header tokens. | |
5fa061b8 | 1132 | */ |
5fa061b8 | 1133 | |
ba82c452 | 1134 | if (len == 0) { // reached EOF? |
62e76326 | 1135 | eof = 1; |
f61f0107 | 1136 | flags.do_next_read = 0; |
da6c8415 | 1137 | |
b73a07d6 | 1138 | /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n |
da6c8415 | 1139 | * Ensure here that we have at minimum two \r\n when EOF is seen. |
b73a07d6 | 1140 | * TODO: Add eof parameter to headersEnd() and move this hack there. |
da6c8415 | 1141 | */ |
b73a07d6 | 1142 | if (readBuf->contentSize() && !flags.headers_parsed) { |
da6c8415 AJ |
1143 | /* |
1144 | * Yes Henrik, there is a point to doing this. When we | |
1145 | * called httpProcessReplyHeader() before, we didn't find | |
1146 | * the end of headers, but now we are definately at EOF, so | |
1147 | * we want to process the reply headers. | |
1148 | */ | |
1149 | /* Fake an "end-of-headers" to work around such broken servers */ | |
1150 | readBuf->append("\r\n", 2); | |
da6c8415 | 1151 | } |
ba82c452 | 1152 | } |
62e76326 | 1153 | |
655daa06 AR |
1154 | processReply(); |
1155 | } | |
1156 | ||
1157 | /// processes the already read and buffered response data, possibly after | |
1158 | /// waiting for asynchronous 1xx control message processing | |
1159 | void | |
de48b288 A |
1160 | HttpStateData::processReply() |
1161 | { | |
655daa06 AR |
1162 | |
1163 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1164 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1165 | flags.handling1xx = false; | |
1166 | Must(!flags.headers_parsed); | |
1167 | } | |
1168 | ||
ba82c452 | 1169 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1170 | PROF_start(HttpStateData_processReplyHeader); | |
1171 | processReplyHeader(); | |
1172 | PROF_stop(HttpStateData_processReplyHeader); | |
1173 | ||
1174 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1175 | return; // TODO: send errors to ICAP | |
1176 | ||
ab593f19 | 1177 | adaptOrFinalizeReply(); // may write to, abort, or "close" the entry |
ba82c452 | 1178 | } |
1179 | ||
1180 | // kick more reads if needed and/or process the response body, if any | |
1181 | PROF_start(HttpStateData_processReplyBody); | |
1182 | processReplyBody(); // may call serverComplete() | |
1183 | PROF_stop(HttpStateData_processReplyBody); | |
1184 | } | |
1185 | ||
073ba374 AJ |
1186 | /** |
1187 | \retval true if we can continue with processing the body or doing ICAP. | |
1188 | */ | |
ba82c452 | 1189 | bool |
1190 | HttpStateData::continueAfterParsingHeader() | |
1191 | { | |
655daa06 AR |
1192 | if (flags.handling1xx) { |
1193 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1194 | Must(!flags.headers_parsed); | |
1195 | return false; | |
1196 | } | |
1197 | ||
073ba374 | 1198 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1199 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1200 | flags.do_next_read = 1; | |
073ba374 AJ |
1201 | /** \retval false If we have not finished parsing the headers and may get more data. |
1202 | * Schedules more reads to retrieve the missing data. | |
1203 | */ | |
ba82c452 | 1204 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1205 | return false; |
ba82c452 | 1206 | } |
1207 | ||
073ba374 | 1208 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1209 | |
1210 | err_type error = ERR_NONE; | |
1211 | ||
1212 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1213 | // check for header parsing errors | |
585ab260 | 1214 | if (HttpReply *vrep = virginReply()) { |
1215 | const http_status s = vrep->sline.status; | |
1216 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1217 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
e24f13cd | 1218 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1219 | error = ERR_INVALID_RESP; |
e1381638 AJ |
1220 | } else if (s == HTTP_HEADER_TOO_LARGE) { |
1221 | fwd->dontRetry(true); | |
1222 | error = ERR_TOO_BIG; | |
1223 | } else { | |
1224 | return true; // done parsing, got reply, and no error | |
1225 | } | |
ba82c452 | 1226 | } else { |
1227 | // parsed headers but got no reply | |
e24f13cd | 1228 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1229 | error = ERR_INVALID_RESP; |
62e76326 | 1230 | } |
090089c4 | 1231 | } else { |
ba82c452 | 1232 | assert(eof); |
9121eba6 AJ |
1233 | if (readBuf->hasContent()) { |
1234 | error = ERR_INVALID_RESP; | |
e24f13cd | 1235 | 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 |
1236 | } else { |
1237 | error = ERR_ZERO_SIZE_OBJECT; | |
e24f13cd CT |
1238 | debugs(11, (request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << |
1239 | entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); | |
9121eba6 | 1240 | } |
2afaba07 | 1241 | } |
ba82c452 | 1242 | |
1243 | assert(error != ERR_NONE); | |
1244 | entry->reset(); | |
913524f0 | 1245 | fwd->fail(new ErrorState(error, HTTP_BAD_GATEWAY, fwd->request)); |
ba82c452 | 1246 | flags.do_next_read = 0; |
8d71285d | 1247 | serverConnection->close(); |
ba82c452 | 1248 | return false; // quit on error |
2afaba07 | 1249 | } |
1250 | ||
821beb5e AR |
1251 | /** truncate what we read if we read too much so that writeReplyBody() |
1252 | writes no more than what we should have read */ | |
1253 | void | |
1254 | HttpStateData::truncateVirginBody() | |
1255 | { | |
1256 | assert(flags.headers_parsed); | |
1257 | ||
1258 | HttpReply *vrep = virginReply(); | |
1259 | int64_t clen = -1; | |
1260 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1261 | return; // no body or a body of unknown size, including chunked | |
1262 | ||
1263 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; | |
e1381638 | 1264 | if (body_bytes_read - body_bytes_truncated <= clen) |
821beb5e AR |
1265 | return; // we did not read too much or already took care of the extras |
1266 | ||
1267 | if (const int64_t extras = body_bytes_read - body_bytes_truncated - clen) { | |
1268 | // server sent more that the advertised content length | |
e1381638 AJ |
1269 | debugs(11,5, HERE << "body_bytes_read=" << body_bytes_read << |
1270 | " clen=" << clen << '/' << vrep->content_length << | |
1271 | " body_bytes_truncated=" << body_bytes_truncated << '+' << extras); | |
821beb5e AR |
1272 | |
1273 | readBuf->truncate(extras); | |
1274 | body_bytes_truncated += extras; | |
1275 | } | |
1276 | } | |
1277 | ||
073ba374 | 1278 | /** |
2afaba07 | 1279 | * Call this when there is data from the origin server |
1280 | * which should be sent to either StoreEntry, or to ICAP... | |
1281 | */ | |
1282 | void | |
5f8252d2 | 1283 | HttpStateData::writeReplyBody() |
2afaba07 | 1284 | { |
821beb5e | 1285 | truncateVirginBody(); // if needed |
5f8252d2 | 1286 | const char *data = readBuf->content(); |
1287 | int len = readBuf->contentSize(); | |
bc81cb2b | 1288 | addVirginReplyBody(data, len); |
5f8252d2 | 1289 | readBuf->consume(len); |
af0bb8e5 | 1290 | } |
fc68f6b1 | 1291 | |
af0bb8e5 | 1292 | bool |
1293 | HttpStateData::decodeAndWriteReplyBody() | |
1294 | { | |
1295 | const char *data = NULL; | |
1296 | int len; | |
e053c141 | 1297 | bool wasThereAnException = false; |
af0bb8e5 | 1298 | assert(flags.chunked); |
1299 | assert(httpChunkDecoder); | |
1300 | SQUID_ENTER_THROWING_CODE(); | |
1301 | MemBuf decodedData; | |
1302 | decodedData.init(); | |
e053c141 | 1303 | const bool doneParsing = httpChunkDecoder->parse(readBuf,&decodedData); |
af0bb8e5 | 1304 | len = decodedData.contentSize(); |
1305 | data=decodedData.content(); | |
1306 | addVirginReplyBody(data, len); | |
e053c141 | 1307 | if (doneParsing) { |
839291ac AJ |
1308 | lastChunk = 1; |
1309 | flags.do_next_read = 0; | |
af0bb8e5 | 1310 | } |
e053c141 FC |
1311 | SQUID_EXIT_THROWING_CODE(wasThereAnException); |
1312 | return wasThereAnException; | |
e6ccf245 | 1313 | } |
1314 | ||
073ba374 | 1315 | /** |
2afaba07 | 1316 | * processReplyBody has two purposes: |
1317 | * 1 - take the reply body data, if any, and put it into either | |
1318 | * the StoreEntry, or give it over to ICAP. | |
1319 | * 2 - see if we made it to the end of the response (persistent | |
1320 | * connections and such) | |
1321 | */ | |
e6ccf245 | 1322 | void |
2afaba07 | 1323 | HttpStateData::processReplyBody() |
e6ccf245 | 1324 | { |
b7ac5457 | 1325 | Ip::Address client_addr; |
d67acb4e | 1326 | bool ispinned = false; |
fc68f6b1 | 1327 | |
1a98175f | 1328 | if (!flags.headers_parsed) { |
f61f0107 | 1329 | flags.do_next_read = 1; |
5f8252d2 | 1330 | maybeReadVirginBody(); |
62e76326 | 1331 | return; |
528b2c61 | 1332 | } |
62e76326 | 1333 | |
a83c6ed6 | 1334 | #if USE_ADAPTATION |
c30ac6ea | 1335 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1336 | if (adaptationAccessCheckPending) |
2afaba07 | 1337 | return; |
fc68f6b1 | 1338 | |
2afaba07 | 1339 | #endif |
62e76326 | 1340 | |
2afaba07 | 1341 | /* |
1342 | * At this point the reply headers have been parsed and consumed. | |
1343 | * That means header content has been removed from readBuf and | |
1344 | * it contains only body data. | |
1345 | */ | |
ef85ab2f DK |
1346 | if (entry->isAccepting()) { |
1347 | if (flags.chunked) { | |
1348 | if (!decodeAndWriteReplyBody()) { | |
1349 | flags.do_next_read = 0; | |
1350 | serverComplete(); | |
1351 | return; | |
1352 | } | |
1353 | } else | |
1354 | writeReplyBody(); | |
1355 | } | |
528b2c61 | 1356 | |
e6ccf245 | 1357 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 AJ |
1358 | // The above writeReplyBody() call may have aborted the store entry. |
1359 | abortTransaction("store entry aborted while storing reply"); | |
1360 | return; | |
62e76326 | 1361 | } else |
1362 | switch (persistentConnStatus()) { | |
dc49061a | 1363 | case INCOMPLETE_MSG: { |
3e4bebf8 | 1364 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG from " << serverConnection); |
21b92762 | 1365 | /* Wait for more data or EOF condition */ |
8d77a37c | 1366 | AsyncCall::Pointer nil; |
21b92762 | 1367 | if (flags.keepalive_broken) { |
8d77a37c | 1368 | commSetConnTimeout(serverConnection, 10, nil); |
21b92762 | 1369 | } else { |
8d77a37c | 1370 | commSetConnTimeout(serverConnection, Config.Timeout.read, nil); |
21b92762 | 1371 | } |
1372 | ||
f61f0107 | 1373 | flags.do_next_read = 1; |
dc49061a A |
1374 | } |
1375 | break; | |
62e76326 | 1376 | |
1377 | case COMPLETE_PERSISTENT_MSG: | |
3e4bebf8 | 1378 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG from " << serverConnection); |
62e76326 | 1379 | /* yes we have to clear all these! */ |
8d77a37c | 1380 | commUnsetConnTimeout(serverConnection); |
f61f0107 | 1381 | flags.do_next_read = 0; |
62e76326 | 1382 | |
8d71285d | 1383 | comm_remove_close_handler(serverConnection->fd, closeHandler); |
dc56a9b1 | 1384 | closeHandler = NULL; |
8d71285d | 1385 | fwd->unregister(serverConnection); |
fc68f6b1 | 1386 | |
e24f13cd CT |
1387 | if (request->flags.spoof_client_ip) |
1388 | client_addr = request->client_addr; | |
fc68f6b1 | 1389 | |
9e008dda AJ |
1390 | if (request->flags.pinned) { |
1391 | ispinned = true; | |
1392 | } else if (request->flags.connection_auth && request->flags.auth_sent) { | |
1393 | ispinned = true; | |
1394 | } | |
1395 | ||
e24f13cd CT |
1396 | if (request->pinnedConnection() && ispinned) { |
1397 | request->pinnedConnection()->pinConnection(serverConnection, request, _peer, | |
9e008dda | 1398 | (request->flags.connection_auth != 0)); |
bd0723ad | 1399 | } else { |
e24f13cd | 1400 | fwd->pconnPush(serverConnection, request->peer_host ? request->peer_host : request->GetHost()); |
bd0723ad | 1401 | } |
1402 | ||
8d71285d | 1403 | serverConnection = NULL; |
5f8252d2 | 1404 | serverComplete(); |
62e76326 | 1405 | return; |
1406 | ||
1407 | case COMPLETE_NONPERSISTENT_MSG: | |
3e4bebf8 | 1408 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG from " << serverConnection); |
5f8252d2 | 1409 | serverComplete(); |
62e76326 | 1410 | return; |
1411 | } | |
1412 | ||
5f8252d2 | 1413 | maybeReadVirginBody(); |
c4b7a5a9 | 1414 | } |
1415 | ||
1416 | void | |
5f8252d2 | 1417 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1418 | { |
85bef0a7 AR |
1419 | // too late to read |
1420 | if (!Comm::IsConnOpen(serverConnection) || fd_table[serverConnection->fd].closing()) | |
1421 | return; | |
1422 | ||
52edecde | 1423 | // we may need to grow the buffer if headers do not fit |
1c9605c5 | 1424 | const int minRead = flags.headers_parsed ? 0 :1024; |
d5f8d05f | 1425 | const int read_size = replyBodySpace(*readBuf, minRead); |
2afaba07 | 1426 | |
5f8252d2 | 1427 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
9cf7de1b | 1428 | " read up to " << read_size << " bytes from " << serverConnection); |
2afaba07 | 1429 | |
1430 | /* | |
1431 | * why <2? Because delayAwareRead() won't actually read if | |
1432 | * you ask it to read 1 byte. The delayed read request | |
1433 | * just gets re-queued until the client side drains, then | |
1434 | * the I/O thread hangs. Better to not register any read | |
1435 | * handler until we get a notification from someone that | |
1436 | * its okay to read again. | |
1437 | */ | |
d5f8d05f | 1438 | if (read_size < 2) |
52edecde | 1439 | return; |
2afaba07 | 1440 | |
f61f0107 | 1441 | if (flags.do_next_read) { |
dc56a9b1 | 1442 | flags.do_next_read = 0; |
1443 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
3e4bebf8 | 1444 | entry->delayAwareRead(serverConnection, readBuf->space(read_size), read_size, |
4cb2536f | 1445 | JobCallback(11, 5, Dialer, this, HttpStateData::readReply)); |
528b2c61 | 1446 | } |
090089c4 | 1447 | } |
1448 | ||
39cb8c41 | 1449 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1450 | void |
39cb8c41 | 1451 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1452 | { |
9cf7de1b | 1453 | debugs(11, 5, HERE << serverConnection << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1454 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1455 | |
528b2c61 | 1456 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1457 | #endif |
62e76326 | 1458 | |
dc56a9b1 | 1459 | if (io.size > 0) { |
49ae8b95 | 1460 | fd_bytes(io.fd, io.size, FD_WRITE); |
e4f1fdae FC |
1461 | kb_incr(&(statCounter.server.all.kbytes_out), io.size); |
1462 | kb_incr(&(statCounter.server.http.kbytes_out), io.size); | |
ee1679df | 1463 | } |
62e76326 | 1464 | |
dc56a9b1 | 1465 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1466 | return; |
1467 | ||
dc56a9b1 | 1468 | if (io.flag) { |
913524f0 | 1469 | ErrorState *err = new ErrorState(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
dc56a9b1 | 1470 | err->xerrno = io.xerrno; |
1471 | fwd->fail(err); | |
8d71285d | 1472 | serverConnection->close(); |
62e76326 | 1473 | return; |
090089c4 | 1474 | } |
72b63f06 | 1475 | |
39cb8c41 AR |
1476 | sendComplete(); |
1477 | } | |
1478 | ||
1479 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1480 | void | |
1481 | HttpStateData::sendComplete() | |
1482 | { | |
2afaba07 | 1483 | /* |
1484 | * Set the read timeout here because it hasn't been set yet. | |
1485 | * We only set the read timeout after the request has been | |
1486 | * fully written to the server-side. If we start the timeout | |
1487 | * after connection establishment, then we are likely to hit | |
1488 | * the timeout for POST/PUT requests that have very large | |
1489 | * request bodies. | |
1490 | */ | |
dc56a9b1 | 1491 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1492 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1493 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1494 | |
8d77a37c | 1495 | commSetConnTimeout(serverConnection, Config.Timeout.read, timeoutCall); |
dc56a9b1 | 1496 | |
1497 | flags.request_sent = 1; | |
e1381638 | 1498 | |
e24f13cd | 1499 | request->hier.peer_http_request_sent = current_time; |
090089c4 | 1500 | } |
1501 | ||
5f8252d2 | 1502 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1503 | void |
5f8252d2 | 1504 | HttpStateData::closeServer() |
2afaba07 | 1505 | { |
9cf7de1b | 1506 | debugs(11,5, HERE << "closing HTTP server " << serverConnection << " this " << this); |
fc68f6b1 | 1507 | |
9cf7de1b | 1508 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d AJ |
1509 | fwd->unregister(serverConnection); |
1510 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
dc56a9b1 | 1511 | closeHandler = NULL; |
8d71285d | 1512 | serverConnection->close(); |
2afaba07 | 1513 | } |
5f8252d2 | 1514 | } |
2afaba07 | 1515 | |
5f8252d2 | 1516 | bool |
1517 | HttpStateData::doneWithServer() const | |
1518 | { | |
9cf7de1b | 1519 | return !Comm::IsConnOpen(serverConnection); |
2afaba07 | 1520 | } |
1521 | ||
ee0b94f4 HN |
1522 | /* |
1523 | * Fixup authentication request headers for special cases | |
1524 | */ | |
1525 | static void | |
e24f13cd | 1526 | httpFixupAuthentication(HttpRequest * request, const HttpHeader * hdr_in, HttpHeader * hdr_out, http_state_flags flags) |
ee0b94f4 HN |
1527 | { |
1528 | http_hdr_type header = flags.originpeer ? HDR_AUTHORIZATION : HDR_PROXY_AUTHORIZATION; | |
1529 | ||
1530 | /* Nothing to do unless we are forwarding to a peer */ | |
1531 | if (!request->flags.proxying) | |
f54f527e | 1532 | return; |
ee0b94f4 HN |
1533 | |
1534 | /* Needs to be explicitly enabled */ | |
e24f13cd | 1535 | if (!request->peer_login) |
f54f527e | 1536 | return; |
ee0b94f4 HN |
1537 | |
1538 | /* Maybe already dealt with? */ | |
1539 | if (hdr_out->has(header)) | |
f54f527e | 1540 | return; |
ee0b94f4 HN |
1541 | |
1542 | /* Nothing to do here for PASSTHRU */ | |
e24f13cd | 1543 | if (strcmp(request->peer_login, "PASSTHRU") == 0) |
f54f527e | 1544 | return; |
ee0b94f4 HN |
1545 | |
1546 | /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */ | |
e24f13cd | 1547 | if (flags.originpeer && strcmp(request->peer_login, "PROXYPASS") == 0 && hdr_in->has(HDR_PROXY_AUTHORIZATION)) { |
f54f527e | 1548 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
ee0b94f4 | 1549 | |
f54f527e AJ |
1550 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1551 | hdr_out->putStr(header, auth); | |
1552 | return; | |
1553 | } | |
ee0b94f4 HN |
1554 | } |
1555 | ||
1556 | /* Special mode to pass the username to the upstream cache */ | |
e24f13cd | 1557 | if (*request->peer_login == '*') { |
f54f527e AJ |
1558 | char loginbuf[256]; |
1559 | const char *username = "-"; | |
ee0b94f4 | 1560 | |
e24f13cd CT |
1561 | if (request->extacl_user.size()) |
1562 | username = request->extacl_user.termedBuf(); | |
2f1431ea | 1563 | #if USE_AUTH |
e24f13cd CT |
1564 | else if (request->auth_user_request != NULL) |
1565 | username = request->auth_user_request->username(); | |
2f1431ea | 1566 | #endif |
ee0b94f4 | 1567 | |
e24f13cd | 1568 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, request->peer_login + 1); |
ee0b94f4 | 1569 | |
f54f527e | 1570 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1571 | old_base64_encode(loginbuf)); |
f54f527e | 1572 | return; |
ee0b94f4 HN |
1573 | } |
1574 | ||
1575 | /* external_acl provided credentials */ | |
e24f13cd CT |
1576 | if (request->extacl_user.size() && request->extacl_passwd.size() && |
1577 | (strcmp(request->peer_login, "PASS") == 0 || | |
1578 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
f54f527e AJ |
1579 | char loginbuf[256]; |
1580 | snprintf(loginbuf, sizeof(loginbuf), SQUIDSTRINGPH ":" SQUIDSTRINGPH, | |
e24f13cd CT |
1581 | SQUIDSTRINGPRINT(request->extacl_user), |
1582 | SQUIDSTRINGPRINT(request->extacl_passwd)); | |
f54f527e | 1583 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1584 | old_base64_encode(loginbuf)); |
f54f527e | 1585 | return; |
ee0b94f4 | 1586 | } |
8fdaa8af AJ |
1587 | // if no external user credentials are available to fake authentication with PASS acts like PASSTHRU |
1588 | if (strcmp(request->peer_login, "PASS") == 0) | |
1589 | continue; | |
ee0b94f4 | 1590 | |
9ca29d23 | 1591 | /* Kerberos login to peer */ |
2f1431ea | 1592 | #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI |
e24f13cd | 1593 | if (strncmp(request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { |
9ca29d23 AJ |
1594 | char *Token=NULL; |
1595 | char *PrincipalName=NULL,*p; | |
e24f13cd | 1596 | if ((p=strchr(request->peer_login,':')) != NULL ) { |
9ca29d23 AJ |
1597 | PrincipalName=++p; |
1598 | } | |
e24f13cd | 1599 | Token = peer_proxy_negotiate_auth(PrincipalName, request->peer_host); |
9ca29d23 | 1600 | if (Token) { |
63f03f79 | 1601 | httpHeaderPutStrf(hdr_out, header, "Negotiate %s",Token); |
9ca29d23 AJ |
1602 | } |
1603 | return; | |
1604 | } | |
1605 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1606 | ||
0606266f | 1607 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
e24f13cd | 1608 | old_base64_encode(request->peer_login)); |
ee0b94f4 HN |
1609 | return; |
1610 | } | |
1611 | ||
99edd1c3 | 1612 | /* |
9e008dda | 1613 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1614 | * used by buildRequestPrefix() |
818c6c9e | 1615 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1616 | */ |
e1e72f06 | 1617 | void |
e5ee81f0 | 1618 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
e5ee81f0 | 1619 | StoreEntry * entry, |
4bf68cfa | 1620 | const AccessLogEntryPointer &al, |
e5ee81f0 | 1621 | HttpHeader * hdr_out, |
386c7842 | 1622 | const http_state_flags flags) |
6bf8443a | 1623 | { |
99edd1c3 | 1624 | /* building buffer for complex strings */ |
5999b776 | 1625 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1626 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1627 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
e24f13cd | 1628 | const HttpHeader *hdr_in = &request->header; |
67c06f0d | 1629 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1630 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1631 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1632 | |
262a0e14 | 1633 | /* append our IMS header */ |
fa3e249f | 1634 | if (request->lastmod > -1) |
a9925b40 | 1635 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1636 | |
e24f13cd | 1637 | bool we_do_ranges = decideIfWeDoRanges (request); |
528b2c61 | 1638 | |
30abd221 | 1639 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1640 | |
a9925b40 | 1641 | while ((e = hdr_in->getEntry(&pos))) |
e24f13cd | 1642 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1643 | |
43ae1d95 | 1644 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1645 | * into offset-length data, and this works around our inability to do so. |
1646 | */ | |
e24f13cd | 1647 | if (!we_do_ranges && request->multipartRangeRequest()) { |
62e76326 | 1648 | /* don't cache the result */ |
e24f13cd | 1649 | request->flags.cachable = 0; |
62e76326 | 1650 | /* pretend it's not a range request */ |
e24f13cd CT |
1651 | delete request->range; |
1652 | request->range = NULL; | |
1653 | request->flags.range = 0; | |
62e76326 | 1654 | } |
528b2c61 | 1655 | |
99edd1c3 | 1656 | /* append Via */ |
736cb6aa | 1657 | if (Config.onoff.via) { |
30abd221 | 1658 | String strVia; |
a9925b40 | 1659 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1660 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
e24f13cd CT |
1661 | request->http_ver.major, |
1662 | request->http_ver.minor, ThisCache); | |
62e76326 | 1663 | strListAdd(&strVia, bbuf, ','); |
d53b3f6d | 1664 | hdr_out->putStr(HDR_VIA, strVia.termedBuf()); |
30abd221 | 1665 | strVia.clean(); |
736cb6aa | 1666 | } |
62e76326 | 1667 | |
e24f13cd | 1668 | if (request->flags.accelerated) { |
43ae1d95 | 1669 | /* Append Surrogate-Capabilities */ |
45cca89d AJ |
1670 | String strSurrogate(hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
1671 | #if USE_SQUID_ESI | |
1672 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1673 | #else | |
1674 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1675 | #endif | |
43ae1d95 | 1676 | strListAdd(&strSurrogate, bbuf, ','); |
d53b3f6d | 1677 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1678 | } |
43ae1d95 | 1679 | |
67c06f0d | 1680 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1681 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 AR |
1682 | |
1683 | String strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1684 | ||
1685 | if (strFwd.size() > 65536/2) { | |
1686 | // There is probably a forwarding loop with Via detection disabled. | |
1687 | // If we do nothing, String will assert on overflow soon. | |
1688 | // TODO: Terminate all transactions with huge XFF? | |
1689 | strFwd = "error"; | |
1690 | ||
1691 | static int warnedCount = 0; | |
1692 | if (warnedCount++ < 100) { | |
e24f13cd | 1693 | const char *url = entry ? entry->url() : urlCanonical(request); |
e0236918 | 1694 | debugs(11, DBG_IMPORTANT, "Warning: likely forwarding loop with " << url); |
c4f30223 AR |
1695 | } |
1696 | } | |
1697 | ||
9e008dda | 1698 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1699 | /** If set to ON - append client IP or 'unknown'. */ |
e24f13cd | 1700 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1701 | strListAdd(&strFwd, "unknown", ','); |
1702 | else | |
e24f13cd | 1703 | strListAdd(&strFwd, request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); |
9e008dda | 1704 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1705 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1706 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1707 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1708 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1709 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1710 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
e24f13cd | 1711 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1712 | strFwd = "unknown"; |
1713 | else | |
e24f13cd | 1714 | strFwd = request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); |
67c06f0d | 1715 | } |
9e008dda | 1716 | if (strFwd.size() > 0) |
d53b3f6d | 1717 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1718 | } |
67c06f0d | 1719 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1720 | |
99edd1c3 | 1721 | /* append Host if not there already */ |
a9925b40 | 1722 | if (!hdr_out->has(HDR_HOST)) { |
e24f13cd CT |
1723 | if (request->peer_domain) { |
1724 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
1725 | } else if (request->port == urlDefaultPort(request->protocol)) { | |
62e76326 | 1726 | /* use port# only if not default */ |
e24f13cd | 1727 | hdr_out->putStr(HDR_HOST, request->GetHost()); |
62e76326 | 1728 | } else { |
1729 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1730 | request->GetHost(), |
1731 | (int) request->port); | |
62e76326 | 1732 | } |
6bf8443a | 1733 | } |
62e76326 | 1734 | |
c68e9c6b | 1735 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1736 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
e24f13cd | 1737 | if (!request->flags.proxying && request->login && *request->login) { |
62e76326 | 1738 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
8bdd0cec | 1739 | old_base64_encode(request->login)); |
62e76326 | 1740 | } |
c68e9c6b | 1741 | } |
62e76326 | 1742 | |
ee0b94f4 | 1743 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
e24f13cd | 1744 | httpFixupAuthentication(request, hdr_in, hdr_out, flags); |
62e76326 | 1745 | |
ee0b94f4 HN |
1746 | /* append Cache-Control, add max-age if not there already */ |
1747 | { | |
a9925b40 | 1748 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1749 | |
1750 | if (!cc) | |
a4a03b37 | 1751 | cc = new HttpHdrCc(); |
62e76326 | 1752 | |
7dc5c309 AJ |
1753 | #if 0 /* see bug 2330 */ |
1754 | /* Set no-cache if determined needed but not found */ | |
e24f13cd | 1755 | if (request->flags.nocache) |
7dc5c309 AJ |
1756 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1757 | #endif | |
1758 | ||
af6a12ee | 1759 | /* Add max-age only without no-cache */ |
904a4905 | 1760 | if (!cc->hasMaxAge() && !cc->noCache()) { |
43ae1d95 | 1761 | const char *url = |
e24f13cd | 1762 | entry ? entry->url() : urlCanonical(request); |
cf7c2e94 | 1763 | cc->maxAge(getMaxAge(url)); |
62e76326 | 1764 | |
62e76326 | 1765 | } |
1766 | ||
ce2d6441 | 1767 | /* Enforce sibling relations */ |
62e76326 | 1768 | if (flags.only_if_cached) |
4ce6e3b5 | 1769 | cc->onlyIfCached(true); |
62e76326 | 1770 | |
a9925b40 | 1771 | hdr_out->putCc(cc); |
62e76326 | 1772 | |
3d7782c1 | 1773 | delete cc; |
6bf8443a | 1774 | } |
62e76326 | 1775 | |
99edd1c3 | 1776 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1777 | if (flags.keepalive) { |
95e78500 | 1778 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
603a02fd | 1779 | } |
62e76326 | 1780 | |
a7ad6e4e | 1781 | /* append Front-End-Https */ |
1782 | if (flags.front_end_https) { | |
0c3d3f65 | 1783 | if (flags.front_end_https == 1 || request->protocol == AnyP::PROTO_HTTPS) |
a9925b40 | 1784 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1785 | } |
1786 | ||
e31a1e67 AR |
1787 | if (flags.chunked_request) { |
1788 | // Do not just copy the original value so that if the client-side | |
1789 | // starts decode other encodings, this code may remain valid. | |
39cb8c41 AR |
1790 | hdr_out->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1791 | } | |
1792 | ||
6bccf575 | 1793 | /* Now mangle the headers. */ |
4f56514c | 1794 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1795 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1796 | |
f4698e0b | 1797 | if (Config.request_header_add && !Config.request_header_add->empty()) |
4bf68cfa | 1798 | httpHdrAdd(hdr_out, request, al, *Config.request_header_add); |
f4698e0b | 1799 | |
30abd221 | 1800 | strConnection.clean(); |
99edd1c3 | 1801 | } |
1802 | ||
9e498bfb AJ |
1803 | /** |
1804 | * Decides whether a particular header may be cloned from the received Clients request | |
1805 | * to our outgoing fetch request. | |
1806 | */ | |
528b2c61 | 1807 | void |
e24f13cd | 1808 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags flags) |
528b2c61 | 1809 | { |
e8466ea9 | 1810 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 1811 | |
528b2c61 | 1812 | switch (e->id) { |
62e76326 | 1813 | |
af6a12ee | 1814 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 1815 | |
be753325 | 1816 | case HDR_PROXY_AUTHORIZATION: |
9e498bfb AJ |
1817 | /** \par Proxy-Authorization: |
1818 | * Only pass on proxy authentication to peers for which | |
62e76326 | 1819 | * authentication forwarding is explicitly enabled |
1820 | */ | |
e24f13cd CT |
1821 | if (!flags.originpeer && flags.proxying && request->peer_login && |
1822 | (strcmp(request->peer_login, "PASS") == 0 || | |
1823 | strcmp(request->peer_login, "PROXYPASS") == 0 || | |
1824 | strcmp(request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 1825 | hdr_out->addEntry(e->clone()); |
62e76326 | 1826 | } |
62e76326 | 1827 | break; |
1828 | ||
af6a12ee | 1829 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb AJ |
1830 | |
1831 | case HDR_CONNECTION: /** \par Connection: */ | |
1832 | case HDR_TE: /** \par TE: */ | |
1833 | case HDR_KEEP_ALIVE: /** \par Keep-Alive: */ | |
1834 | case HDR_PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
a1651bad | 1835 | case HDR_TRAILER: /** \par Trailer: */ |
9e498bfb AJ |
1836 | case HDR_UPGRADE: /** \par Upgrade: */ |
1837 | case HDR_TRANSFER_ENCODING: /** \par Transfer-Encoding: */ | |
1838 | break; | |
1839 | ||
af6a12ee | 1840 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 1841 | |
be753325 | 1842 | case HDR_AUTHORIZATION: |
9e498bfb AJ |
1843 | /** \par WWW-Authorization: |
1844 | * Pass on WWW authentication */ | |
62e76326 | 1845 | |
1846 | if (!flags.originpeer) { | |
eede25e7 | 1847 | hdr_out->addEntry(e->clone()); |
62e76326 | 1848 | } else { |
9e498bfb | 1849 | /** \note In accelerators, only forward authentication if enabled |
ee0b94f4 | 1850 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 1851 | */ |
e24f13cd CT |
1852 | if (request->peer_login && |
1853 | (strcmp(request->peer_login, "PASS") == 0 || | |
1854 | strcmp(request->peer_login, "PASSTHRU") == 0 || | |
1855 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1856 | hdr_out->addEntry(e->clone()); |
62e76326 | 1857 | } |
1858 | } | |
1859 | ||
1860 | break; | |
1861 | ||
be753325 | 1862 | case HDR_HOST: |
9e498bfb | 1863 | /** \par Host: |
b883b594 | 1864 | * Normally Squid rewrites the Host: header. |
1865 | * However, there is one case when we don't: If the URL | |
62e76326 | 1866 | * went through our redirector and the admin configured |
1867 | * 'redir_rewrites_host' to be off. | |
1868 | */ | |
e24f13cd CT |
1869 | if (request->peer_domain) |
1870 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
488b27c5 | 1871 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1872 | hdr_out->addEntry(e->clone()); |
b883b594 | 1873 | else { |
1874 | /* use port# only if not default */ | |
1875 | ||
e24f13cd CT |
1876 | if (request->port == urlDefaultPort(request->protocol)) { |
1877 | hdr_out->putStr(HDR_HOST, request->GetHost()); | |
b883b594 | 1878 | } else { |
1879 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1880 | request->GetHost(), |
1881 | (int) request->port); | |
b883b594 | 1882 | } |
1883 | } | |
62e76326 | 1884 | |
1885 | break; | |
1886 | ||
be753325 | 1887 | case HDR_IF_MODIFIED_SINCE: |
9e498bfb | 1888 | /** \par If-Modified-Since: |
af6a12ee | 1889 | * append unless we added our own; |
9e498bfb | 1890 | * \note at most one client's ims header can pass through */ |
b883b594 | 1891 | |
a9925b40 | 1892 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1893 | hdr_out->addEntry(e->clone()); |
62e76326 | 1894 | |
1895 | break; | |
1896 | ||
be753325 | 1897 | case HDR_MAX_FORWARDS: |
9e498bfb | 1898 | /** \par Max-Forwards: |
fc90edc3 | 1899 | * pass only on TRACE or OPTIONS requests */ |
e24f13cd | 1900 | if (request->method == METHOD_TRACE || request->method == METHOD_OPTIONS) { |
fc90edc3 | 1901 | const int64_t hops = e->getInt64(); |
62e76326 | 1902 | |
1903 | if (hops > 0) | |
fc90edc3 | 1904 | hdr_out->putInt64(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1905 | } |
1906 | ||
1907 | break; | |
1908 | ||
be753325 | 1909 | case HDR_VIA: |
9e498bfb AJ |
1910 | /** \par Via: |
1911 | * If Via is disabled then forward any received header as-is. | |
1912 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 1913 | |
1914 | if (!Config.onoff.via) | |
eede25e7 | 1915 | hdr_out->addEntry(e->clone()); |
62e76326 | 1916 | |
1917 | break; | |
1918 | ||
be753325 | 1919 | case HDR_RANGE: |
62e76326 | 1920 | |
be753325 | 1921 | case HDR_IF_RANGE: |
62e76326 | 1922 | |
be753325 | 1923 | case HDR_REQUEST_RANGE: |
9e498bfb AJ |
1924 | /** \par Range:, If-Range:, Request-Range: |
1925 | * Only pass if we accept ranges */ | |
62e76326 | 1926 | if (!we_do_ranges) |
eede25e7 | 1927 | hdr_out->addEntry(e->clone()); |
62e76326 | 1928 | |
1929 | break; | |
1930 | ||
95e78500 AJ |
1931 | case HDR_PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
1932 | break; | |
62e76326 | 1933 | |
f228d6f6 AR |
1934 | case HDR_CONTENT_LENGTH: |
1935 | // pass through unless we chunk; also, keeping this away from default | |
1936 | // prevents request smuggling via Connection: Content-Length tricks | |
1937 | if (!flags.chunked_request) | |
1938 | hdr_out->addEntry(e->clone()); | |
1939 | break; | |
1940 | ||
be753325 | 1941 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1942 | |
be753325 | 1943 | case HDR_CACHE_CONTROL: |
95e78500 | 1944 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
1945 | * handled specially by Squid, so leave off for now. |
1946 | * append these after the loop if needed */ | |
62e76326 | 1947 | break; |
1948 | ||
be753325 | 1949 | case HDR_FRONT_END_HTTPS: |
9e498bfb AJ |
1950 | /** \par Front-End-Https: |
1951 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 1952 | if (!flags.front_end_https) |
eede25e7 | 1953 | hdr_out->addEntry(e->clone()); |
62e76326 | 1954 | |
1955 | break; | |
1956 | ||
be753325 | 1957 | default: |
9e498bfb AJ |
1958 | /** \par default. |
1959 | * pass on all other header fields | |
1960 | * which are NOT listed by the special Connection: header. */ | |
1961 | ||
a7a42b14 | 1962 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name.termedBuf(), ',')) { |
e1ea7456 | 1963 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
1964 | return; |
1965 | } | |
1966 | ||
eede25e7 | 1967 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1968 | } |
1969 | } | |
1970 | ||
e5ee81f0 | 1971 | bool |
e24f13cd | 1972 | HttpStateData::decideIfWeDoRanges (HttpRequest * request) |
528b2c61 | 1973 | { |
e5ee81f0 | 1974 | bool result = true; |
62e76326 | 1975 | /* decide if we want to do Ranges ourselves |
1976 | * and fetch the whole object now) | |
1977 | * We want to handle Ranges ourselves iff | |
1978 | * - we can actually parse client Range specs | |
1979 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1980 | * - reply will be cachable | |
1981 | * (If the reply will be uncachable we have to throw it away after | |
1982 | * serving this request, so it is better to forward ranges to | |
1983 | * the server and fetch only the requested content) | |
1984 | */ | |
1985 | ||
e24f13cd | 1986 | int64_t roffLimit = request->getRangeOffsetLimit(); |
11e3fa1c | 1987 | |
e24f13cd CT |
1988 | if (NULL == request->range || !request->flags.cachable |
1989 | || request->range->offsetLimitExceeded(roffLimit) || request->flags.connection_auth) | |
e5ee81f0 | 1990 | result = false; |
62e76326 | 1991 | |
9e008dda | 1992 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
e24f13cd CT |
1993 | request->range << ", cachable: " << |
1994 | request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 1995 | |
1996 | return result; | |
528b2c61 | 1997 | } |
1998 | ||
62e76326 | 1999 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 2000 | * return the length of the prefix */ |
9bc73deb | 2001 | mb_size_t |
e24f13cd | 2002 | HttpStateData::buildRequestPrefix(MemBuf * mb) |
99edd1c3 | 2003 | { |
2004 | const int offset = mb->size; | |
3872be7c | 2005 | HttpVersion httpver(1,1); |
e24f13cd CT |
2006 | const char * url; |
2007 | if (_peer && !_peer->options.originserver) | |
2008 | url = entry->url(); | |
2009 | else | |
2010 | url = request->urlpath.termedBuf(); | |
c9fd01b4 | 2011 | mb->Printf("%s %s %s/%d.%d\r\n", |
e24f13cd CT |
2012 | RequestMethodStr(request->method), |
2013 | url && *url ? url : "/", | |
c9fd01b4 | 2014 | AnyP::ProtocolType_str[httpver.protocol], |
2fe7eff9 | 2015 | httpver.major,httpver.minor); |
99edd1c3 | 2016 | /* build and pack headers */ |
2017 | { | |
75faaa7a | 2018 | HttpHeader hdr(hoRequest); |
62e76326 | 2019 | Packer p; |
4bf68cfa | 2020 | httpBuildRequestHeader(request, entry, fwd->al, &hdr, flags); |
9e008dda | 2021 | |
e24f13cd CT |
2022 | if (request->flags.pinned && request->flags.connection_auth) |
2023 | request->flags.auth_sent = 1; | |
d67acb4e | 2024 | else if (hdr.has(HDR_AUTHORIZATION)) |
e24f13cd | 2025 | request->flags.auth_sent = 1; |
d67acb4e | 2026 | |
62e76326 | 2027 | packerToMemInit(&p, mb); |
a9925b40 | 2028 | hdr.packInto(&p); |
519e0948 | 2029 | hdr.clean(); |
62e76326 | 2030 | packerClean(&p); |
9d9d144b | 2031 | } |
99edd1c3 | 2032 | /* append header terminator */ |
2fe7eff9 | 2033 | mb->append(crlf, 2); |
99edd1c3 | 2034 | return mb->size - offset; |
6bf8443a | 2035 | } |
62e76326 | 2036 | |
090089c4 | 2037 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2038 | bool |
2bb867b5 | 2039 | HttpStateData::sendRequest() |
090089c4 | 2040 | { |
99edd1c3 | 2041 | MemBuf mb; |
090089c4 | 2042 | |
9cf7de1b | 2043 | debugs(11, 5, HERE << serverConnection << ", request " << request << ", this " << this << "."); |
a0297974 | 2044 | |
6b679a01 | 2045 | if (!Comm::IsConnOpen(serverConnection)) { |
9cf7de1b | 2046 | debugs(11,3, HERE << "cannot send request to closing " << serverConnection); |
a0297974 AR |
2047 | assert(closeHandler != NULL); |
2048 | return false; | |
2049 | } | |
2050 | ||
dc56a9b1 | 2051 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2052 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2053 | TimeoutDialer, this, HttpStateData::httpTimeout); |
8d77a37c | 2054 | commSetConnTimeout(serverConnection, Config.Timeout.lifetime, timeoutCall); |
2bb867b5 | 2055 | flags.do_next_read = 1; |
5f8252d2 | 2056 | maybeReadVirginBody(); |
2057 | ||
e24f13cd | 2058 | if (request->body_pipe != NULL) { |
123ec4de | 2059 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2060 | return false; |
9e008dda | 2061 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2062 | requestSender = JobCallback(11,5, |
4cb2536f | 2063 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2064 | |
2065 | Must(!flags.chunked_request); | |
f228d6f6 | 2066 | // use chunked encoding if we do not know the length |
e24f13cd | 2067 | if (request->content_length < 0) |
e31a1e67 | 2068 | flags.chunked_request = 1; |
5f8252d2 | 2069 | } else { |
2070 | assert(!requestBodySource); | |
9e008dda | 2071 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2072 | requestSender = JobCallback(11,5, |
39cb8c41 | 2073 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2074 | } |
54220df8 | 2075 | |
2bb867b5 | 2076 | if (_peer != NULL) { |
2077 | if (_peer->options.originserver) { | |
2078 | flags.proxying = 0; | |
2079 | flags.originpeer = 1; | |
62e76326 | 2080 | } else { |
2bb867b5 | 2081 | flags.proxying = 1; |
2082 | flags.originpeer = 0; | |
62e76326 | 2083 | } |
be753325 | 2084 | } else { |
2bb867b5 | 2085 | flags.proxying = 0; |
2086 | flags.originpeer = 0; | |
be753325 | 2087 | } |
62e76326 | 2088 | |
efb9218c | 2089 | /* |
99edd1c3 | 2090 | * Is keep-alive okay for all request methods? |
efb9218c | 2091 | */ |
e24f13cd | 2092 | if (request->flags.must_keepalive) |
9e008dda | 2093 | flags.keepalive = 1; |
d67acb4e | 2094 | else if (!Config.onoff.server_pconns) |
2bb867b5 | 2095 | flags.keepalive = 0; |
2096 | else if (_peer == NULL) | |
2097 | flags.keepalive = 1; | |
2098 | else if (_peer->stats.n_keepalives_sent < 10) | |
2099 | flags.keepalive = 1; | |
2100 | else if ((double) _peer->stats.n_keepalives_recv / | |
2101 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
2102 | flags.keepalive = 1; | |
2103 | ||
2104 | if (_peer) { | |
2ecba5b6 | 2105 | /*The old code here was |
e24f13cd CT |
2106 | if (neighborType(_peer, request) == PEER_SIBLING && ... |
2107 | which is equivalent to: | |
2108 | if (neighborType(_peer, NULL) == PEER_SIBLING && ... | |
2109 | or better: | |
2110 | if (((_peer->type == PEER_MULTICAST && p->options.mcast_siblings) || | |
2111 | _peer->type == PEER_SIBLINGS ) && _peer->options.allow_miss) | |
2112 | flags.only_if_cached = 1; | |
2113 | ||
2114 | But I suppose it was a bug | |
2115 | */ | |
2bb867b5 | 2116 | if (neighborType(_peer, request) == PEER_SIBLING && |
2117 | !_peer->options.allow_miss) | |
2118 | flags.only_if_cached = 1; | |
2119 | ||
2120 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2121 | } |
62e76326 | 2122 | |
2fe7eff9 | 2123 | mb.init(); |
9ca29d23 | 2124 | request->peer_host=_peer?_peer->host:NULL; |
e24f13cd | 2125 | buildRequestPrefix(&mb); |
5f8252d2 | 2126 | |
1ce34ddd AJ |
2127 | debugs(11, 2, "HTTP Server " << serverConnection); |
2128 | debugs(11, 2, "HTTP Server REQUEST:\n---------\n" << mb.buf << "\n----------"); | |
2129 | ||
2130 | Comm::Write(serverConnection, &mb, requestSender); | |
5f8252d2 | 2131 | return true; |
090089c4 | 2132 | } |
b6a2f15e | 2133 | |
39cb8c41 AR |
2134 | bool |
2135 | HttpStateData::getMoreRequestBody(MemBuf &buf) | |
2136 | { | |
2137 | // parent's implementation can handle the no-encoding case | |
e31a1e67 | 2138 | if (!flags.chunked_request) |
39cb8c41 AR |
2139 | return ServerStateData::getMoreRequestBody(buf); |
2140 | ||
2141 | MemBuf raw; | |
2142 | ||
2143 | Must(requestBodySource != NULL); | |
2144 | if (!requestBodySource->getMoreData(raw)) | |
2145 | return false; // no request body bytes to chunk yet | |
2146 | ||
2147 | // optimization: pre-allocate buffer size that should be enough | |
2148 | const mb_size_t rawDataSize = raw.contentSize(); | |
2149 | // we may need to send: hex-chunk-size CRLF raw-data CRLF last-chunk | |
2150 | buf.init(16 + 2 + rawDataSize + 2 + 5, raw.max_capacity); | |
2151 | ||
d958d14f | 2152 | buf.Printf("%x\r\n", static_cast<unsigned int>(rawDataSize)); |
39cb8c41 AR |
2153 | buf.append(raw.content(), rawDataSize); |
2154 | buf.Printf("\r\n"); | |
2155 | ||
2156 | Must(rawDataSize > 0); // we did not accidently created last-chunk above | |
2157 | ||
2158 | // Do not send last-chunk unless we successfully received everything | |
2159 | if (receivedWholeRequestBody) { | |
2160 | Must(!flags.sentLastChunk); | |
2161 | flags.sentLastChunk = true; | |
de48b288 | 2162 | buf.append("0\r\n\r\n", 5); |
39cb8c41 AR |
2163 | } |
2164 | ||
2165 | return true; | |
2166 | } | |
2167 | ||
910169e5 | 2168 | void |
b6b6f466 | 2169 | httpStart(FwdState *fwd) |
603a02fd | 2170 | { |
60745f24 | 2171 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
79628299 CT |
2172 | AsyncJob::Start(new HttpStateData(fwd)); |
2173 | } | |
62e76326 | 2174 | |
79628299 CT |
2175 | void |
2176 | HttpStateData::start() | |
2177 | { | |
2178 | if (!sendRequest()) { | |
bf8fe701 | 2179 | debugs(11, 3, "httpStart: aborted"); |
79628299 | 2180 | mustStop("HttpStateData::start failed"); |
5f8252d2 | 2181 | return; |
2182 | } | |
62e76326 | 2183 | |
95dc7ff4 FC |
2184 | ++ statCounter.server.all.requests; |
2185 | ++ statCounter.server.http.requests; | |
62e76326 | 2186 | |
b6a2f15e | 2187 | /* |
2188 | * We used to set the read timeout here, but not any more. | |
2189 | * Now its set in httpSendComplete() after the full request, | |
2190 | * including request body, has been written to the server. | |
2191 | */ | |
090089c4 | 2192 | } |
2193 | ||
39cb8c41 AR |
2194 | /// if broken posts are enabled for the request, try to fix and return true |
2195 | bool | |
2196 | HttpStateData::finishingBrokenPost() | |
2bb867b5 | 2197 | { |
626096be | 2198 | #if USE_HTTP_VIOLATIONS |
39cb8c41 AR |
2199 | if (!Config.accessList.brokenPosts) { |
2200 | debugs(11, 5, HERE << "No brokenPosts list"); | |
2201 | return false; | |
2202 | } | |
a0297974 | 2203 | |
e11513e1 | 2204 | ACLFilledChecklist ch(Config.accessList.brokenPosts, originalRequest(), NULL); |
e0f7153c | 2205 | if (ch.fastCheck() != ACCESS_ALLOWED) { |
39cb8c41 AR |
2206 | debugs(11, 5, HERE << "didn't match brokenPosts"); |
2207 | return false; | |
2208 | } | |
a0297974 | 2209 | |
9cf7de1b | 2210 | if (!Comm::IsConnOpen(serverConnection)) { |
30c48b1a | 2211 | debugs(11, 3, HERE << "ignoring broken POST for closed " << serverConnection); |
39cb8c41 AR |
2212 | assert(closeHandler != NULL); |
2213 | return true; // prevent caller from proceeding as if nothing happened | |
54220df8 | 2214 | } |
39cb8c41 | 2215 | |
30c48b1a | 2216 | debugs(11, 3, "finishingBrokenPost: fixing broken POST"); |
39cb8c41 AR |
2217 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
2218 | requestSender = JobCallback(11,5, | |
2219 | Dialer, this, HttpStateData::wroteLast); | |
b0388924 | 2220 | Comm::Write(serverConnection, "\r\n", 2, requestSender, NULL); |
39cb8c41 AR |
2221 | return true; |
2222 | #else | |
2223 | return false; | |
626096be | 2224 | #endif /* USE_HTTP_VIOLATIONS */ |
39cb8c41 AR |
2225 | } |
2226 | ||
2227 | /// if needed, write last-chunk to end the request body and return true | |
2228 | bool | |
2229 | HttpStateData::finishingChunkedRequest() | |
2230 | { | |
2231 | if (flags.sentLastChunk) { | |
2232 | debugs(11, 5, HERE << "already sent last-chunk"); | |
2233 | return false; | |
2234 | } | |
2235 | ||
2236 | Must(receivedWholeRequestBody); // or we should not be sending last-chunk | |
2237 | flags.sentLastChunk = true; | |
2238 | ||
2239 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
e0d28505 | 2240 | requestSender = JobCallback(11,5, Dialer, this, HttpStateData::wroteLast); |
b0388924 | 2241 | Comm::Write(serverConnection, "0\r\n\r\n", 5, requestSender, NULL); |
39cb8c41 AR |
2242 | return true; |
2243 | } | |
2244 | ||
2245 | void | |
2246 | HttpStateData::doneSendingRequestBody() | |
2247 | { | |
2248 | ServerStateData::doneSendingRequestBody(); | |
9cf7de1b | 2249 | debugs(11,5, HERE << serverConnection); |
39cb8c41 AR |
2250 | |
2251 | // do we need to write something after the last body byte? | |
e31a1e67 | 2252 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2253 | return; |
e31a1e67 | 2254 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2255 | return; |
aa49962c | 2256 | |
39cb8c41 | 2257 | sendComplete(); |
94439e4e | 2258 | } |
2259 | ||
5f8252d2 | 2260 | // more origin request body data is available |
2bb867b5 | 2261 | void |
5f8252d2 | 2262 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2263 | { |
6b679a01 | 2264 | if (eof || !Comm::IsConnOpen(serverConnection)) { |
5f8252d2 | 2265 | // XXX: we should check this condition in other callbacks then! |
2266 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2267 | // as a body consumer when the above condition(s) are detected. | |
e0236918 | 2268 | debugs(11, DBG_IMPORTANT, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2269 | return; |
2270 | } | |
62e76326 | 2271 | |
5f8252d2 | 2272 | assert(requestBodySource != NULL); |
fc68f6b1 | 2273 | |
5f8252d2 | 2274 | if (requestBodySource->buf().hasContent()) { |
2275 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2276 | |
2bb867b5 | 2277 | if (flags.headers_parsed && !flags.abuse_detected) { |
2278 | flags.abuse_detected = 1; | |
e0236918 | 2279 | debugs(11, DBG_IMPORTANT, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2280 | |
585ab260 | 2281 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
8d71285d | 2282 | serverConnection->close(); |
21b92762 | 2283 | return; |
2284 | } | |
2285 | } | |
b6a2f15e | 2286 | } |
5f8252d2 | 2287 | |
2288 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2289 | } |
2290 | ||
5f8252d2 | 2291 | // premature end of the request body |
2bb867b5 | 2292 | void |
5f8252d2 | 2293 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2294 | { |
5f8252d2 | 2295 | ServerStateData::handleRequestBodyProducerAborted(); |
64b66b76 | 2296 | if (entry->isEmpty()) { |
25b481e6 | 2297 | debugs(11, 3, "request body aborted: " << serverConnection); |
8b997339 AR |
2298 | // We usually get here when ICAP REQMOD aborts during body processing. |
2299 | // We might also get here if client-side aborts, but then our response | |
2300 | // should not matter because either client-side will provide its own or | |
2301 | // there will be no response at all (e.g., if the the client has left). | |
913524f0 | 2302 | ErrorState *err = new ErrorState(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, fwd->request); |
129fe2a1 | 2303 | err->detailError(ERR_DETAIL_SRV_REQMOD_REQ_BODY); |
64b66b76 CT |
2304 | fwd->fail(err); |
2305 | } | |
2306 | ||
39cb8c41 | 2307 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2308 | } |
2309 | ||
5f8252d2 | 2310 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2311 | void |
dc56a9b1 | 2312 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2313 | { |
dc56a9b1 | 2314 | if (io.size > 0) |
2315 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2316 | |
dc56a9b1 | 2317 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2318 | } |
3b299123 | 2319 | |
5f8252d2 | 2320 | // Quickly abort the transaction |
2321 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2322 | // including canceling close handlers | |
2323 | void | |
2324 | HttpStateData::abortTransaction(const char *reason) | |
2325 | { | |
2326 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
9cf7de1b | 2327 | "; " << serverConnection << ", this " << this); |
fc68f6b1 | 2328 | |
be364179 | 2329 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d | 2330 | serverConnection->close(); |
3e8c047e | 2331 | return; |
c23f0c74 | 2332 | } |
3e8c047e | 2333 | |
2334 | fwd->handleUnregisteredServerEnd(); | |
79628299 | 2335 | mustStop("HttpStateData::abortTransaction"); |
54220df8 | 2336 | } |