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30a4f2a8 | 1 | /* |
30a4f2a8 | 2 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) |
3 | * AUTHOR: Harvest Derived | |
4 | * | |
2b6662ba | 5 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 6 | * ---------------------------------------------------------- |
30a4f2a8 | 7 | * |
2b6662ba | 8 | * Squid is the result of efforts by numerous individuals from |
9 | * the Internet community; see the CONTRIBUTORS file for full | |
10 | * details. Many organizations have provided support for Squid's | |
11 | * development; see the SPONSORS file for full details. Squid is | |
12 | * Copyrighted (C) 2001 by the Regents of the University of | |
13 | * California; see the COPYRIGHT file for full details. Squid | |
14 | * incorporates software developed and/or copyrighted by other | |
15 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 16 | * |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
9e008dda | 21 | * |
30a4f2a8 | 22 | * This program is distributed in the hope that it will be useful, |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
9e008dda | 26 | * |
30a4f2a8 | 27 | * You should have received a copy of the GNU General Public License |
28 | * along with this program; if not, write to the Free Software | |
cbdec147 | 29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
30a4f2a8 | 30 | */ |
019dd986 | 31 | |
4a83b852 | 32 | /* |
33 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 34 | * have a look into http-anon.c to get more informations. |
4a83b852 | 35 | */ |
36 | ||
582c2af2 | 37 | #include "squid.h" |
9ca29d23 | 38 | #include "acl/FilledChecklist.h" |
582c2af2 | 39 | #include "base64.h" |
655daa06 | 40 | #include "base/AsyncJobCalls.h" |
3d93a84d | 41 | #include "base/TextException.h" |
582c2af2 | 42 | #include "client_side.h" |
8d71285d | 43 | #include "comm/Connection.h" |
ec41b64c | 44 | #include "comm/Write.h" |
8b997339 | 45 | #include "err_detail_type.h" |
aa839030 | 46 | #include "errorpage.h" |
fc54b8d2 | 47 | #include "fd.h" |
85bef0a7 | 48 | #include "fde.h" |
67679543 | 49 | #include "globals.h" |
655daa06 | 50 | #include "HttpControlMsg.h" |
582c2af2 | 51 | #include "http.h" |
7ebe76de | 52 | #include "HttpHdrCc.h" |
582c2af2 | 53 | #include "HttpHdrContRange.h" |
b19dd748 | 54 | #include "HttpHdrSc.h" |
55 | #include "HttpHdrScTarget.h" | |
fc54b8d2 | 56 | #include "HttpHeaderTools.h" |
9ca29d23 AJ |
57 | #include "HttpReply.h" |
58 | #include "HttpRequest.h" | |
fc54b8d2 | 59 | #include "log/access_log.h" |
9ca29d23 AJ |
60 | #include "MemBuf.h" |
61 | #include "MemObject.h" | |
b6149797 | 62 | #include "mime_header.h" |
fc54b8d2 | 63 | #include "neighbors.h" |
6ff204fc | 64 | #include "peer_proxy_negotiate_auth.h" |
582c2af2 | 65 | #include "profiler/Profiler.h" |
fc54b8d2 | 66 | #include "refresh.h" |
1fa9b1a7 | 67 | #include "rfc1738.h" |
985c86bc | 68 | #include "SquidTime.h" |
e4f1fdae | 69 | #include "StatCounters.h" |
9ca29d23 | 70 | #include "Store.h" |
28204b3b | 71 | #include "StrList.h" |
fc54b8d2 FC |
72 | #include "tools.h" |
73 | #include "URL.h" | |
af0bb8e5 | 74 | |
582c2af2 FC |
75 | #if USE_AUTH |
76 | #include "auth/UserRequest.h" | |
77 | #endif | |
78 | #if USE_DELAY_POOLS | |
79 | #include "DelayPools.h" | |
80 | #endif | |
9ca29d23 | 81 | |
af0bb8e5 | 82 | #define SQUID_ENTER_THROWING_CODE() try { |
83 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
84 | status = true; \ | |
85 | } \ | |
0a8bbeeb AR |
86 | catch (const std::exception &e) { \ |
87 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 88 | status = false; \ |
9e008dda | 89 | } |
e6ccf245 | 90 | |
2afaba07 | 91 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 92 | |
6bf8443a | 93 | static const char *const crlf = "\r\n"; |
4db43fab | 94 | |
f9cece6e | 95 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
e24f13cd | 96 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, |
9e498bfb | 97 | HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags); |
f4698e0b | 98 | //Declared in HttpHeaderTools.cc |
4bf68cfa | 99 | void httpHdrAdd(HttpHeader *heads, HttpRequest *request, const AccessLogEntryPointer &al, HeaderWithAclList &headers_add); |
528b2c61 | 100 | |
dc56a9b1 | 101 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
e1381638 AJ |
102 | lastChunk(0), header_bytes_read(0), reply_bytes_read(0), |
103 | body_bytes_truncated(0), httpChunkDecoder(NULL) | |
2bb867b5 | 104 | { |
105 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 106 | ignoreCacheControl = false; |
107 | surrogateNoStore = false; | |
8d71285d | 108 | serverConnection = fwd->serverConnection(); |
a3d50c30 | 109 | readBuf = new MemBuf; |
9cfb5f4d | 110 | readBuf->init(16*1024, 256*1024); |
a3d50c30 | 111 | |
3ff65596 | 112 | // reset peer response time stats for %<pt |
e24f13cd CT |
113 | request->hier.peer_http_request_sent.tv_sec = 0; |
114 | request->hier.peer_http_request_sent.tv_usec = 0; | |
3ff65596 | 115 | |
5229395c AJ |
116 | if (fwd->serverConnection() != NULL) |
117 | _peer = cbdataReference(fwd->serverConnection()->getPeer()); /* might be NULL */ | |
a3d50c30 | 118 | |
119 | if (_peer) { | |
e24f13cd | 120 | request->flags.proxying = 1; |
a3d50c30 | 121 | /* |
122 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
123 | * We might end up getting the object from somewhere else if, | |
124 | * for example, the request to this neighbor fails. | |
125 | */ | |
126 | if (_peer->options.proxy_only) | |
d88e3c49 | 127 | entry->releaseRequest(); |
a3d50c30 | 128 | |
9a0a18de | 129 | #if USE_DELAY_POOLS |
a3d50c30 | 130 | entry->setNoDelay(_peer->options.no_delay); |
a3d50c30 | 131 | #endif |
a3d50c30 | 132 | } |
133 | ||
134 | /* | |
135 | * register the handler to free HTTP state data when the FD closes | |
136 | */ | |
dc56a9b1 | 137 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
d1c7f781 | 138 | closeHandler = JobCallback(9, 5, Dialer, this, HttpStateData::httpStateConnClosed); |
8d71285d | 139 | comm_add_close_handler(serverConnection->fd, closeHandler); |
2bb867b5 | 140 | } |
b8d8561b | 141 | |
2afaba07 | 142 | HttpStateData::~HttpStateData() |
f5558c95 | 143 | { |
253caccb | 144 | /* |
3b299123 | 145 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 146 | */ |
147 | ||
2afaba07 | 148 | if (!readBuf->isNull()) |
149 | readBuf->clean(); | |
62e76326 | 150 | |
2afaba07 | 151 | delete readBuf; |
152 | ||
9e008dda AJ |
153 | if (httpChunkDecoder) |
154 | delete httpChunkDecoder; | |
af0bb8e5 | 155 | |
5229395c AJ |
156 | cbdataReferenceDone(_peer); |
157 | ||
9cf7de1b | 158 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; " << serverConnection); |
5f8252d2 | 159 | } |
160 | ||
6b679a01 | 161 | const Comm::ConnectionPointer & |
e83cc785 | 162 | HttpStateData::dataConnection() const |
fc68f6b1 | 163 | { |
6b679a01 | 164 | return serverConnection; |
2afaba07 | 165 | } |
8d71285d | 166 | |
9e008dda | 167 | void |
dc56a9b1 | 168 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
169 | { | |
170 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
79628299 | 171 | mustStop("HttpStateData::httpStateConnClosed"); |
f5558c95 | 172 | } |
173 | ||
b8d8561b | 174 | int |
60745f24 | 175 | httpCachable(const HttpRequestMethod& method) |
090089c4 | 176 | { |
090089c4 | 177 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 178 | |
9e008dda | 179 | // TODO: replase to HttpRequestMethod::isCachable() ? |
6eb42cae | 180 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 181 | return 0; |
182 | ||
090089c4 | 183 | /* else cachable */ |
184 | return 1; | |
185 | } | |
186 | ||
dc56a9b1 | 187 | void |
188 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 189 | { |
9cf7de1b | 190 | debugs(11, 4, HERE << serverConnection << ": '" << entry->url() << "'" ); |
62e76326 | 191 | |
12158bdc | 192 | if (entry->store_status == STORE_PENDING) { |
913524f0 | 193 | fwd->fail(new ErrorState(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 194 | } |
62e76326 | 195 | |
8d71285d | 196 | serverConnection->close(); |
090089c4 | 197 | } |
198 | ||
f9cece6e | 199 | static void |
200 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
201 | { | |
914b89a2 | 202 | int remove = 0; |
7e3ce7b9 | 203 | int forbidden = 0; |
f9cece6e | 204 | StoreEntry *pe; |
62e76326 | 205 | |
d46a87a8 | 206 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 207 | return; |
208 | ||
f9cece6e | 209 | switch (status) { |
62e76326 | 210 | |
f9cece6e | 211 | case HTTP_OK: |
62e76326 | 212 | |
f9cece6e | 213 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 214 | |
f9cece6e | 215 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 216 | |
f9cece6e | 217 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 218 | |
f9cece6e | 219 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 220 | |
f9cece6e | 221 | case HTTP_GONE: |
62e76326 | 222 | |
7e3ce7b9 | 223 | case HTTP_NOT_FOUND: |
914b89a2 | 224 | remove = 1; |
62e76326 | 225 | |
226 | break; | |
227 | ||
7e3ce7b9 | 228 | case HTTP_FORBIDDEN: |
62e76326 | 229 | |
7e3ce7b9 | 230 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 231 | forbidden = 1; |
232 | ||
233 | break; | |
234 | ||
f9cece6e | 235 | #if WORK_IN_PROGRESS |
62e76326 | 236 | |
c8fd0193 | 237 | case HTTP_UNAUTHORIZED: |
62e76326 | 238 | forbidden = 1; |
239 | ||
240 | break; | |
241 | ||
f9cece6e | 242 | #endif |
62e76326 | 243 | |
f9cece6e | 244 | default: |
7e3ce7b9 | 245 | #if QUESTIONABLE |
62e76326 | 246 | /* |
247 | * Any 2xx response should eject previously cached entities... | |
248 | */ | |
abb929f0 | 249 | |
62e76326 | 250 | if (status >= 200 && status < 300) |
914b89a2 | 251 | remove = 1; |
62e76326 | 252 | |
7e3ce7b9 | 253 | #endif |
62e76326 | 254 | |
255 | break; | |
f9cece6e | 256 | } |
62e76326 | 257 | |
914b89a2 | 258 | if (!remove && !forbidden) |
62e76326 | 259 | return; |
260 | ||
f9cece6e | 261 | assert(e->mem_obj); |
62e76326 | 262 | |
f66a9ef4 | 263 | if (e->mem_obj->request) |
62e76326 | 264 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 265 | else |
62e76326 | 266 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
267 | ||
f66a9ef4 | 268 | if (pe != NULL) { |
62e76326 | 269 | assert(e != pe); |
d9129474 | 270 | #if USE_HTCP |
8dceeee3 | 271 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 272 | #endif |
5f33b71d | 273 | pe->release(); |
0856d155 | 274 | } |
62e76326 | 275 | |
914b89a2 | 276 | /** \par |
7e3ce7b9 | 277 | * Also remove any cached HEAD response in case the object has |
278 | * changed. | |
279 | */ | |
f66a9ef4 | 280 | if (e->mem_obj->request) |
62e76326 | 281 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 282 | else |
62e76326 | 283 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
284 | ||
f66a9ef4 | 285 | if (pe != NULL) { |
62e76326 | 286 | assert(e != pe); |
d9129474 | 287 | #if USE_HTCP |
8dceeee3 | 288 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 289 | #endif |
5f33b71d | 290 | pe->release(); |
7e3ce7b9 | 291 | } |
f9cece6e | 292 | } |
293 | ||
43ae1d95 | 294 | void |
295 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
296 | { | |
43ae1d95 | 297 | if (request->flags.accelerated && reply->surrogate_control) { |
45a58345 | 298 | HttpHdrScTarget *sctusable = reply->surrogate_control->getMergedTarget(Config.Accel.surrogate_id); |
43ae1d95 | 299 | |
300 | if (sctusable) { | |
45a58345 | 301 | if (sctusable->noStore() || |
43ae1d95 | 302 | (Config.onoff.surrogate_is_remote |
45a58345 | 303 | && sctusable->noStoreRemote())) { |
43ae1d95 | 304 | surrogateNoStore = true; |
5ed72359 | 305 | entry->makePrivate(); |
43ae1d95 | 306 | } |
307 | ||
308 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
309 | * accelerated request or not... | |
45cca89d | 310 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 311 | */ |
45a58345 FC |
312 | if (sctusable->hasMaxAge()) { |
313 | if (sctusable->maxAge() < sctusable->maxStale()) | |
314 | reply->expires = reply->date + sctusable->maxAge(); | |
43ae1d95 | 315 | else |
45a58345 | 316 | reply->expires = reply->date + sctusable->maxStale(); |
43ae1d95 | 317 | |
318 | /* And update the timestamps */ | |
3900307b | 319 | entry->timestampsSet(); |
43ae1d95 | 320 | } |
321 | ||
322 | /* We ignore cache-control directives as per the Surrogate specification */ | |
323 | ignoreCacheControl = true; | |
324 | ||
45a58345 | 325 | delete sctusable; |
43ae1d95 | 326 | } |
327 | } | |
43ae1d95 | 328 | } |
329 | ||
924f73bc | 330 | int |
331 | HttpStateData::cacheableReply() | |
c54e9052 | 332 | { |
585ab260 | 333 | HttpReply const *rep = finalReply(); |
528b2c61 | 334 | HttpHeader const *hdr = &rep->header; |
c68e9c6b | 335 | const char *v; |
626096be | 336 | #if USE_HTTP_VIOLATIONS |
62e76326 | 337 | |
38f9c547 | 338 | const refresh_t *R = NULL; |
b6445726 | 339 | |
346be6ad | 340 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 341 | * and then checks if the specified flag is set. The main purpose |
626096be | 342 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 343 | * condition |
344 | */ | |
345 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 346 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
347 | (R && R->flags.flag)) | |
b445957e | 348 | #else |
349 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 350 | #endif |
43ae1d95 | 351 | |
38f9c547 | 352 | if (surrogateNoStore) |
62e76326 | 353 | return 0; |
354 | ||
8466a4af AR |
355 | // RFC 2616: do not cache replies to responses with no-store CC directive |
356 | if (request && request->cache_control && | |
4ce6e3b5 | 357 | request->cache_control->noStore() && |
ab745b44 | 358 | !REFRESH_OVERRIDE(ignore_no_store)) |
8466a4af AR |
359 | return 0; |
360 | ||
cf7c2e94 | 361 | if (!ignoreCacheControl && request->cache_control != NULL) { |
f9517ad8 | 362 | const HttpHdrCc* cc=request->cache_control; |
4ce6e3b5 | 363 | if (cc->Private()) { |
b6445726 | 364 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 365 | return 0; |
366 | } | |
367 | ||
4ce6e3b5 | 368 | if (cc->noCache()) { |
b6445726 | 369 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 370 | return 0; |
371 | } | |
372 | ||
4ce6e3b5 | 373 | if (cc->noStore()) { |
b6445726 | 374 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 375 | return 0; |
376 | } | |
43ae1d95 | 377 | } |
378 | ||
d67acb4e | 379 | if (request->flags.auth || request->flags.auth_sent) { |
62e76326 | 380 | /* |
381 | * Responses to requests with authorization may be cached | |
382 | * only if a Cache-Control: public reply header is present. | |
383 | * RFC 2068, sec 14.9.4 | |
384 | */ | |
385 | ||
f308e116 | 386 | if (!request->cache_control || !request->cache_control->Public()) { |
b6445726 | 387 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 388 | return 0; |
389 | } | |
a6dfe2d9 | 390 | } |
62e76326 | 391 | |
c68e9c6b | 392 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
393 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 394 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 395 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 396 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 397 | s.clean(); |
62e76326 | 398 | |
38f9c547 | 399 | if (no_cache) { |
b6445726 | 400 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 401 | return 0; |
402 | } | |
c68e9c6b | 403 | } |
62e76326 | 404 | |
c68e9c6b | 405 | /* |
406 | * The "multipart/x-mixed-replace" content type is used for | |
407 | * continuous push replies. These are generally dynamic and | |
408 | * probably should not be cachable | |
409 | */ | |
a9925b40 | 410 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 411 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
412 | return 0; | |
413 | ||
585ab260 | 414 | switch (rep->sline.status) { |
62e76326 | 415 | /* Responses that are cacheable */ |
416 | ||
19a04dac | 417 | case HTTP_OK: |
62e76326 | 418 | |
19a04dac | 419 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 420 | |
19a04dac | 421 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 422 | |
19a04dac | 423 | case HTTP_MOVED_PERMANENTLY: |
6bc67152 | 424 | case HTTP_PERMANENT_REDIRECT: |
62e76326 | 425 | |
19a04dac | 426 | case HTTP_GONE: |
62e76326 | 427 | /* |
428 | * Don't cache objects that need to be refreshed on next request, | |
429 | * unless we know how to refresh it. | |
430 | */ | |
431 | ||
3d8b6ba4 | 432 | if (!refreshIsCachable(entry) && !REFRESH_OVERRIDE(store_stale)) { |
bf8fe701 | 433 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 434 | return 0; |
ca34dacd | 435 | } else |
62e76326 | 436 | return 1; |
437 | ||
62e76326 | 438 | /* NOTREACHED */ |
439 | break; | |
440 | ||
441 | /* Responses that only are cacheable if the server says so */ | |
442 | ||
19a04dac | 443 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 444 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 445 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 446 | return 1; |
447 | else | |
448 | return 0; | |
449 | ||
450 | /* NOTREACHED */ | |
451 | break; | |
452 | ||
453 | /* Errors can be negatively cached */ | |
454 | ||
19a04dac | 455 | case HTTP_NO_CONTENT: |
62e76326 | 456 | |
19a04dac | 457 | case HTTP_USE_PROXY: |
62e76326 | 458 | |
19a04dac | 459 | case HTTP_BAD_REQUEST: |
62e76326 | 460 | |
19a04dac | 461 | case HTTP_FORBIDDEN: |
62e76326 | 462 | |
19a04dac | 463 | case HTTP_NOT_FOUND: |
62e76326 | 464 | |
19a04dac | 465 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 466 | |
19a04dac | 467 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 468 | |
19a04dac | 469 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 470 | |
19a04dac | 471 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 472 | |
19a04dac | 473 | case HTTP_BAD_GATEWAY: |
62e76326 | 474 | |
19a04dac | 475 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 476 | |
19a04dac | 477 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 478 | return -1; |
479 | ||
480 | /* NOTREACHED */ | |
481 | break; | |
482 | ||
483 | /* Some responses can never be cached */ | |
484 | ||
0cdcddb9 | 485 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_SEE_OTHER: |
62e76326 | 488 | |
19a04dac | 489 | case HTTP_NOT_MODIFIED: |
62e76326 | 490 | |
19a04dac | 491 | case HTTP_UNAUTHORIZED: |
62e76326 | 492 | |
19a04dac | 493 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 494 | |
0cdcddb9 | 495 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 496 | |
497 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 498 | |
499 | case HTTP_PAYMENT_REQUIRED: | |
500 | case HTTP_NOT_ACCEPTABLE: | |
501 | case HTTP_REQUEST_TIMEOUT: | |
502 | case HTTP_CONFLICT: | |
503 | case HTTP_LENGTH_REQUIRED: | |
504 | case HTTP_PRECONDITION_FAILED: | |
505 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
506 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
507 | case HTTP_UNPROCESSABLE_ENTITY: | |
508 | case HTTP_LOCKED: | |
509 | case HTTP_FAILED_DEPENDENCY: | |
510 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 511 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
512 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 513 | |
62e76326 | 514 | return 0; |
515 | ||
41217979 AJ |
516 | default: |
517 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
518 | debugs (11, 3, HERE << "Unknown HTTP status code " << rep->sline.status << ". Not cacheable."); | |
62e76326 | 519 | |
520 | return 0; | |
521 | ||
522 | /* NOTREACHED */ | |
523 | break; | |
c54e9052 | 524 | } |
62e76326 | 525 | |
79d39a72 | 526 | /* NOTREACHED */ |
c54e9052 | 527 | } |
090089c4 | 528 | |
f66a9ef4 | 529 | /* |
9e008dda | 530 | * For Vary, store the relevant request headers as |
f66a9ef4 | 531 | * virtual headers in the reply |
532 | * Returns false if the variance cannot be stored | |
533 | */ | |
534 | const char * | |
190154cf | 535 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 536 | { |
30abd221 | 537 | String vary, hdr; |
f66a9ef4 | 538 | const char *pos = NULL; |
539 | const char *item; | |
540 | const char *value; | |
541 | int ilen; | |
30abd221 | 542 | static String vstr; |
f66a9ef4 | 543 | |
30abd221 | 544 | vstr.clean(); |
a9925b40 | 545 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 546 | |
f66a9ef4 | 547 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 548 | char *name = (char *)xmalloc(ilen + 1); |
549 | xstrncpy(name, item, ilen + 1); | |
550 | Tolower(name); | |
9776e3cc | 551 | |
552 | if (strcmp(name, "*") == 0) { | |
553 | /* Can not handle "Vary: *" withtout ETag support */ | |
554 | safe_free(name); | |
30abd221 | 555 | vstr.clean(); |
9776e3cc | 556 | break; |
557 | } | |
558 | ||
62e76326 | 559 | strListAdd(&vstr, name, ','); |
a9925b40 | 560 | hdr = request->header.getByName(name); |
62e76326 | 561 | safe_free(name); |
d53b3f6d | 562 | value = hdr.termedBuf(); |
62e76326 | 563 | |
564 | if (value) { | |
565 | value = rfc1738_escape_part(value); | |
566 | vstr.append("=\"", 2); | |
567 | vstr.append(value); | |
568 | vstr.append("\"", 1); | |
569 | } | |
570 | ||
30abd221 | 571 | hdr.clean(); |
f66a9ef4 | 572 | } |
62e76326 | 573 | |
30abd221 | 574 | vary.clean(); |
f66a9ef4 | 575 | #if X_ACCELERATOR_VARY |
62e76326 | 576 | |
aa38be4a | 577 | pos = NULL; |
a9925b40 | 578 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 579 | |
f66a9ef4 | 580 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 581 | char *name = (char *)xmalloc(ilen + 1); |
582 | xstrncpy(name, item, ilen + 1); | |
583 | Tolower(name); | |
584 | strListAdd(&vstr, name, ','); | |
a9925b40 | 585 | hdr = request->header.getByName(name); |
62e76326 | 586 | safe_free(name); |
d53b3f6d | 587 | value = hdr.termedBuf(); |
62e76326 | 588 | |
589 | if (value) { | |
590 | value = rfc1738_escape_part(value); | |
591 | vstr.append("=\"", 2); | |
592 | vstr.append(value); | |
593 | vstr.append("\"", 1); | |
594 | } | |
595 | ||
30abd221 | 596 | hdr.clean(); |
f66a9ef4 | 597 | } |
62e76326 | 598 | |
30abd221 | 599 | vary.clean(); |
f66a9ef4 | 600 | #endif |
62e76326 | 601 | |
d53b3f6d FC |
602 | debugs(11, 3, "httpMakeVaryMark: " << vstr); |
603 | return vstr.termedBuf(); | |
f66a9ef4 | 604 | } |
605 | ||
2afaba07 | 606 | void |
607 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
608 | { | |
609 | if (flags.keepalive) | |
610 | if (_peer) | |
95dc7ff4 | 611 | ++ _peer->stats.n_keepalives_sent; |
2afaba07 | 612 | |
613 | if (reply->keep_alive) { | |
614 | if (_peer) | |
95dc7ff4 | 615 | ++ _peer->stats.n_keepalives_recv; |
2afaba07 | 616 | |
af6a12ee AJ |
617 | if (Config.onoff.detect_broken_server_pconns |
618 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
e0236918 | 619 | debugs(11, DBG_IMPORTANT, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
bf8fe701 | 620 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); |
2afaba07 | 621 | flags.keepalive_broken = 1; |
622 | } | |
623 | } | |
624 | } | |
625 | ||
626 | void | |
627 | HttpStateData::checkDateSkew(HttpReply *reply) | |
628 | { | |
629 | if (reply->date > -1 && !_peer) { | |
630 | int skew = abs((int)(reply->date - squid_curtime)); | |
631 | ||
632 | if (skew > 86400) | |
cc192b50 | 633 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 634 | } |
635 | } | |
636 | ||
073ba374 | 637 | /** |
4eb368f9 | 638 | * This creates the error page itself.. its likely |
639 | * that the forward ported reply header max size patch | |
640 | * generates non http conformant error pages - in which | |
641 | * case the errors where should be 'BAD_GATEWAY' etc | |
642 | */ | |
b8d8561b | 643 | void |
2afaba07 | 644 | HttpStateData::processReplyHeader() |
f5558c95 | 645 | { |
073ba374 | 646 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 AJ |
647 | |
648 | /* NP: all exit points to this function MUST call ctx_exit(ctx) */ | |
82384411 | 649 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
859f1666 | 650 | |
bf8fe701 | 651 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 652 | |
1a98175f | 653 | assert(!flags.headers_parsed); |
62e76326 | 654 | |
859f1666 AJ |
655 | if (!readBuf->hasContent()) { |
656 | ctx_exit(ctx); | |
b73a07d6 | 657 | return; |
859f1666 | 658 | } |
b73a07d6 | 659 | |
2afaba07 | 660 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 661 | |
585ab260 | 662 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 663 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 664 | |
e77d7ef0 | 665 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0 && strncmp(readBuf->content(), "ICY", 3) != 0) { |
9e008dda AJ |
666 | MemBuf *mb; |
667 | HttpReply *tmprep = new HttpReply; | |
11992b6f | 668 | tmprep->setHeaders(HTTP_OK, "Gatewaying", NULL, -1, -1, -1); |
9e008dda AJ |
669 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); |
670 | mb = tmprep->pack(); | |
671 | newrep->parse(mb, eof, &error); | |
ddbe383d | 672 | delete mb; |
9e008dda AJ |
673 | delete tmprep; |
674 | } else { | |
675 | if (!parsed && error > 0) { // unrecoverable parsing error | |
676 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
677 | flags.headers_parsed = 1; | |
871c031f | 678 | newrep->sline.version = HttpVersion(1,1); |
9e008dda AJ |
679 | newrep->sline.status = error; |
680 | HttpReply *vrep = setVirginReply(newrep); | |
681 | entry->replaceHttpReply(vrep); | |
682 | ctx_exit(ctx); | |
683 | return; | |
684 | } | |
685 | ||
686 | if (!parsed) { // need more data | |
687 | assert(!error); | |
688 | assert(!eof); | |
689 | delete newrep; | |
690 | ctx_exit(ctx); | |
691 | return; | |
692 | } | |
693 | ||
1ce34ddd AJ |
694 | debugs(11, 2, "HTTP Server " << serverConnection); |
695 | debugs(11, 2, "HTTP Server REPLY:\n---------\n" << readBuf->content() << "\n----------"); | |
9e008dda AJ |
696 | |
697 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
698 | readBuf->consume(header_bytes_read); | |
f5558c95 | 699 | } |
62e76326 | 700 | |
c679653d | 701 | newrep->removeStaleWarnings(); |
3d9e71e6 | 702 | |
0c3d3f65 | 703 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->sline.status >= 100 && newrep->sline.status < 200) { |
655daa06 | 704 | handle1xx(newrep); |
3d9e71e6 | 705 | ctx_exit(ctx); |
3d9e71e6 AJ |
706 | return; |
707 | } | |
708 | ||
af0bb8e5 | 709 | flags.chunked = 0; |
0c3d3f65 | 710 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->header.chunked()) { |
9e008dda AJ |
711 | flags.chunked = 1; |
712 | httpChunkDecoder = new ChunkedCodingParser; | |
af0bb8e5 | 713 | } |
714 | ||
9e008dda | 715 | if (!peerSupportsConnectionPinning()) |
e24f13cd | 716 | request->flags.connection_auth_disabled = 1; |
d67acb4e | 717 | |
585ab260 | 718 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 719 | flags.headers_parsed = 1; |
720 | ||
585ab260 | 721 | keepaliveAccounting(vrep); |
47ac2ebe | 722 | |
585ab260 | 723 | checkDateSkew(vrep); |
47ac2ebe | 724 | |
585ab260 | 725 | processSurrogateControl (vrep); |
528b2c61 | 726 | |
073ba374 | 727 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 728 | * Parse the header and remove all referenced headers |
729 | */ | |
730 | ||
e24f13cd | 731 | request->hier.peer_reply_status = newrep->sline.status; |
3ff65596 | 732 | |
2afaba07 | 733 | ctx_exit(ctx); |
734 | } | |
735 | ||
655daa06 AR |
736 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
737 | void | |
738 | HttpStateData::handle1xx(HttpReply *reply) | |
739 | { | |
740 | HttpMsgPointerT<HttpReply> msg(reply); // will destroy reply if unused | |
741 | ||
742 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
743 | Must(!flags.handling1xx); | |
744 | flags.handling1xx = true; | |
745 | ||
e24f13cd | 746 | if (!request->canHandle1xx()) { |
655daa06 AR |
747 | debugs(11, 2, HERE << "ignoring client-unsupported 1xx"); |
748 | proceedAfter1xx(); | |
749 | return; | |
750 | } | |
751 | ||
752 | #if USE_HTTP_VIOLATIONS | |
753 | // check whether the 1xx response forwarding is allowed by squid.conf | |
754 | if (Config.accessList.reply) { | |
e11513e1 | 755 | ACLFilledChecklist ch(Config.accessList.reply, originalRequest(), NULL); |
655daa06 | 756 | ch.reply = HTTPMSGLOCK(reply); |
e0f7153c | 757 | if (ch.fastCheck() != ACCESS_ALLOWED) { // TODO: support slow lookups? |
655daa06 AR |
758 | debugs(11, 3, HERE << "ignoring denied 1xx"); |
759 | proceedAfter1xx(); | |
760 | return; | |
de48b288 | 761 | } |
655daa06 AR |
762 | } |
763 | #endif // USE_HTTP_VIOLATIONS | |
764 | ||
765 | debugs(11, 2, HERE << "forwarding 1xx to client"); | |
766 | ||
767 | // the Sink will use this to call us back after writing 1xx to the client | |
768 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
769 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 770 | HttpStateData::proceedAfter1xx); |
e24f13cd | 771 | CallJobHere1(11, 4, request->clientConnectionManager, ConnStateData, |
655daa06 AR |
772 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); |
773 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
774 | // will terminate due to an aborted store entry or another similar error. | |
775 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
776 | // for similar reasons without a 1xx response. | |
777 | } | |
778 | ||
779 | /// restores state and resumes processing after 1xx is ignored or forwarded | |
780 | void | |
781 | HttpStateData::proceedAfter1xx() | |
782 | { | |
783 | Must(flags.handling1xx); | |
784 | ||
785 | debugs(11, 2, HERE << "consuming " << header_bytes_read << | |
de48b288 | 786 | " header and " << reply_bytes_read << " body bytes read after 1xx"); |
655daa06 AR |
787 | header_bytes_read = 0; |
788 | reply_bytes_read = 0; | |
789 | ||
790 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); | |
791 | } | |
792 | ||
d67acb4e AJ |
793 | /** |
794 | * returns true if the peer can support connection pinning | |
795 | */ | |
796 | bool HttpStateData::peerSupportsConnectionPinning() const | |
797 | { | |
798 | const HttpReply *rep = entry->mem_obj->getReply(); | |
799 | const HttpHeader *hdr = &rep->header; | |
800 | bool rc; | |
801 | String header; | |
802 | ||
803 | if (!_peer) | |
9e008dda AJ |
804 | return true; |
805 | ||
806 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
807 | connections) return false |
808 | */ | |
809 | if (!_peer->connection_auth) | |
9e008dda | 810 | return false; |
d67acb4e | 811 | |
9e008dda | 812 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
813 | is not unauthorized, so the related connection can be pinned |
814 | */ | |
815 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
816 | return true; |
817 | ||
818 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
819 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
820 | connections |
821 | */ | |
822 | if (_peer->connection_auth == 1) | |
9e008dda | 823 | return true; |
d67acb4e | 824 | |
9e008dda AJ |
825 | /*At this point peer has configured with "connection-auth=auto" |
826 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
827 | to allow pinned connections or not |
828 | */ | |
829 | ||
9e008dda | 830 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
831 | pinning (squid 2.6 behaviour) |
832 | */ | |
833 | if (_peer->options.originserver) | |
9e008dda | 834 | return true; |
d67acb4e AJ |
835 | |
836 | /*if the connections it is already pinned it is OK*/ | |
837 | if (request->flags.pinned) | |
9e008dda AJ |
838 | return true; |
839 | ||
840 | /*Allow pinned connections only if the Proxy-support header exists in | |
841 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
842 | which means that the peer supports connection pinning. |
843 | */ | |
844 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 845 | return false; |
d67acb4e AJ |
846 | |
847 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
848 | /* XXX This ought to be done in a case-insensitive manner */ | |
d53b3f6d | 849 | rc = (strstr(header.termedBuf(), "Session-Based-Authentication") != NULL); |
d67acb4e AJ |
850 | |
851 | return rc; | |
852 | } | |
853 | ||
5f8252d2 | 854 | // Called when we parsed (and possibly adapted) the headers but |
855 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 856 | void |
857 | HttpStateData::haveParsedReplyHeaders() | |
858 | { | |
c1520b67 AJ |
859 | ServerStateData::haveParsedReplyHeaders(); |
860 | ||
2afaba07 | 861 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 862 | HttpReply *rep = finalReply(); |
2afaba07 | 863 | |
585ab260 | 864 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
865 | rep->content_range) | |
866 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 867 | |
3900307b | 868 | entry->timestampsSet(); |
62e76326 | 869 | |
9bc73deb | 870 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 871 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 872 | |
9bc73deb | 873 | if (neighbors_do_private_keys) |
585ab260 | 874 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 875 | |
585ab260 | 876 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 877 | #if X_ACCELERATOR_VARY |
585ab260 | 878 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 879 | #endif |
4b44c907 | 880 | ) { |
e24f13cd | 881 | const char *vary = httpMakeVaryMark(request, rep); |
4b44c907 | 882 | |
883 | if (!vary) { | |
5ed72359 | 884 | entry->makePrivate(); |
d7d3253b AJ |
885 | if (!fwd->reforwardableStatus(rep->sline.status)) |
886 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); | |
4b44c907 | 887 | goto no_cache; |
62e76326 | 888 | } |
889 | ||
4b44c907 | 890 | entry->mem_obj->vary_headers = xstrdup(vary); |
891 | } | |
892 | ||
2afaba07 | 893 | /* |
894 | * If its not a reply that we will re-forward, then | |
895 | * allow the client to get it. | |
896 | */ | |
585ab260 | 897 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 898 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
899 | ||
4b44c907 | 900 | switch (cacheableReply()) { |
901 | ||
902 | case 1: | |
5ed72359 | 903 | entry->makePublic(); |
62e76326 | 904 | break; |
905 | ||
9bc73deb | 906 | case 0: |
5ed72359 | 907 | entry->makePrivate(); |
62e76326 | 908 | break; |
909 | ||
9bc73deb | 910 | case -1: |
4b44c907 | 911 | |
626096be | 912 | #if USE_HTTP_VIOLATIONS |
4b44c907 | 913 | if (Config.negativeTtl > 0) |
5ed72359 | 914 | entry->cacheNegatively(); |
4b44c907 | 915 | else |
ac9cc053 | 916 | #endif |
5ed72359 | 917 | entry->makePrivate(); |
4b44c907 | 918 | |
62e76326 | 919 | break; |
920 | ||
9bc73deb | 921 | default: |
62e76326 | 922 | assert(0); |
4b44c907 | 923 | |
62e76326 | 924 | break; |
9bc73deb | 925 | } |
62e76326 | 926 | |
4b44c907 | 927 | no_cache: |
928 | ||
585ab260 | 929 | if (!ignoreCacheControl && rep->cache_control) { |
4ce6e3b5 FC |
930 | if (rep->cache_control->proxyRevalidate() || |
931 | rep->cache_control->mustRevalidate() || | |
d74ad83f | 932 | rep->cache_control->hasSMaxAge() |
77da1817 | 933 | ) |
62e76326 | 934 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 935 | } |
62e76326 | 936 | |
c3609322 | 937 | #if HEADERS_LOG |
585ab260 | 938 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 939 | |
c3609322 | 940 | #endif |
5f8252d2 | 941 | |
942 | ctx_exit(ctx); | |
f5558c95 | 943 | } |
944 | ||
528b2c61 | 945 | HttpStateData::ConnectionStatus |
946 | HttpStateData::statusIfComplete() const | |
603a02fd | 947 | { |
585ab260 | 948 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
949 | /** \par |
950 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 951 | |
2afaba07 | 952 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 953 | return COMPLETE_NONPERSISTENT_MSG; |
954 | ||
073ba374 AJ |
955 | /** \par |
956 | * If we didn't send a keep-alive request header, then this | |
978e455f | 957 | * can not be a persistent connection. |
958 | */ | |
528b2c61 | 959 | if (!flags.keepalive) |
62e76326 | 960 | return COMPLETE_NONPERSISTENT_MSG; |
961 | ||
073ba374 | 962 | /** \par |
72b63f06 | 963 | * If we haven't sent the whole request then this can not be a persistent |
964 | * connection. | |
965 | */ | |
966 | if (!flags.request_sent) { | |
e24f13cd | 967 | debugs(11, 2, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 968 | return COMPLETE_NONPERSISTENT_MSG; |
969 | } | |
970 | ||
073ba374 | 971 | /** \par |
9f5a2895 | 972 | * What does the reply have to say about keep-alive? |
973 | */ | |
073ba374 AJ |
974 | /** |
975 | \bug XXX BUG? | |
b6a2f15e | 976 | * If the origin server (HTTP/1.0) does not send a keep-alive |
977 | * header, but keeps the connection open anyway, what happens? | |
978 | * We'll return here and http.c waits for an EOF before changing | |
979 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
980 | * and an error status code, and we might have to wait until | |
981 | * the server times out the socket. | |
982 | */ | |
2afaba07 | 983 | if (!rep->keep_alive) |
528b2c61 | 984 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 985 | |
528b2c61 | 986 | return COMPLETE_PERSISTENT_MSG; |
987 | } | |
988 | ||
989 | HttpStateData::ConnectionStatus | |
990 | HttpStateData::persistentConnStatus() const | |
991 | { | |
9cf7de1b | 992 | debugs(11, 3, HERE << serverConnection << " eof=" << eof); |
839291ac AJ |
993 | if (eof) // already reached EOF |
994 | return COMPLETE_NONPERSISTENT_MSG; | |
995 | ||
505c2f28 AR |
996 | /* If server fd is closing (but we have not been notified yet), stop Comm |
997 | I/O to avoid assertions. TODO: Change Comm API to handle callers that | |
998 | want more I/O after async closing (usually initiated by others). */ | |
999 | // XXX: add canReceive or s/canSend/canTalkToServer/ | |
e7cea0ed | 1000 | if (!Comm::IsConnOpen(serverConnection)) |
505c2f28 AR |
1001 | return COMPLETE_NONPERSISTENT_MSG; |
1002 | ||
9035d1d5 AJ |
1003 | /** \par |
1004 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1005 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 1006 | * decide if we can be persistant |
af0bb8e5 | 1007 | */ |
839291ac | 1008 | if (lastChunk && flags.chunked) |
9e008dda | 1009 | return statusIfComplete(); |
af0bb8e5 | 1010 | |
718d84bf AR |
1011 | const HttpReply *vrep = virginReply(); |
1012 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
1013 | ||
47f6e231 | 1014 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1015 | |
bf8fe701 | 1016 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1017 | |
35282fbf | 1018 | /* If the body size is unknown we must wait for EOF */ |
1019 | if (clen < 0) | |
62e76326 | 1020 | return INCOMPLETE_MSG; |
1021 | ||
9035d1d5 AJ |
1022 | /** \par |
1023 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1024 | if (clen > 0) { |
1025 | // old technique: | |
585ab260 | 1026 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 1027 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 1028 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 1029 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 1030 | |
585ab260 | 1031 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 1032 | return INCOMPLETE_MSG; |
821beb5e AR |
1033 | |
1034 | if (body_bytes_truncated > 0) // already read more than needed | |
1035 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns | |
5f8252d2 | 1036 | } |
62e76326 | 1037 | |
9035d1d5 AJ |
1038 | /** \par |
1039 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1040 | return statusIfComplete(); |
603a02fd | 1041 | } |
090089c4 | 1042 | |
2afaba07 | 1043 | /* |
1044 | * This is the callback after some data has been read from the network | |
1045 | */ | |
dc56a9b1 | 1046 | /* |
e5ee81f0 | 1047 | void |
d53b3f6d | 1048 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) |
c4b7a5a9 | 1049 | { |
1050 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
8d71285d | 1051 | assert (fd == httpState->serverConnection->fd); |
d53b3f6d | 1052 | // assert(buf == readBuf->content()); |
1d5161bd | 1053 | PROF_start(HttpStateData_readReply); |
e6edd8df | 1054 | httpState->readReply(len, flag, xerrno); |
1d5161bd | 1055 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1056 | } |
dc56a9b1 | 1057 | */ |
073ba374 | 1058 | |
2afdbf48 | 1059 | /* XXX this function is too long! */ |
c4b7a5a9 | 1060 | void |
e6edd8df | 1061 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1062 | { |
30a4f2a8 | 1063 | int bin; |
090089c4 | 1064 | int clen; |
dc56a9b1 | 1065 | int len = io.size; |
c4b7a5a9 | 1066 | |
dc56a9b1 | 1067 | flags.do_next_read = 0; |
9e008dda | 1068 | |
3e4bebf8 | 1069 | debugs(11, 5, HERE << io.conn << ": len " << len << "."); |
62e76326 | 1070 | |
7a7cc03f | 1071 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1072 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1073 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1074 | return; |
1075 | } | |
1076 | ||
e92e4e44 | 1077 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 | 1078 | abortTransaction("store entry aborted while reading reply"); |
62e76326 | 1079 | return; |
e92e4e44 | 1080 | } |
c4b7a5a9 | 1081 | |
fdf55365 | 1082 | // handle I/O errors |
dc56a9b1 | 1083 | if (io.flag != COMM_OK || len < 0) { |
3e4bebf8 | 1084 | debugs(11, 2, HERE << io.conn << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1085 | |
dc56a9b1 | 1086 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1087 | flags.do_next_read = 1; |
1088 | } else { | |
913524f0 | 1089 | ErrorState *err = new ErrorState(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
dc56a9b1 | 1090 | err->xerrno = io.xerrno; |
fdf55365 | 1091 | fwd->fail(err); |
1092 | flags.do_next_read = 0; | |
8d71285d | 1093 | serverConnection->close(); |
fdf55365 | 1094 | } |
1095 | ||
1096 | return; | |
1097 | } | |
1098 | ||
7a7cc03f | 1099 | // update I/O stats |
fdf55365 | 1100 | if (len > 0) { |
2afaba07 | 1101 | readBuf->appended(len); |
5f8252d2 | 1102 | reply_bytes_read += len; |
9a0a18de | 1103 | #if USE_DELAY_POOLS |
2afaba07 | 1104 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); |
62e76326 | 1105 | delayId.bytesIn(len); |
447e176b | 1106 | #endif |
62e76326 | 1107 | |
e4f1fdae FC |
1108 | kb_incr(&(statCounter.server.all.kbytes_in), len); |
1109 | kb_incr(&(statCounter.server.http.kbytes_in), len); | |
95dc7ff4 | 1110 | ++ IOStats.Http.reads; |
62e76326 | 1111 | |
95dc7ff4 | 1112 | for (clen = len - 1, bin = 0; clen; ++bin) |
62e76326 | 1113 | clen >>= 1; |
1114 | ||
95dc7ff4 | 1115 | ++ IOStats.Http.read_hist[bin]; |
3ff65596 AR |
1116 | |
1117 | // update peer response time stats (%<pt) | |
e24f13cd CT |
1118 | const timeval &sent = request->hier.peer_http_request_sent; |
1119 | request->hier.peer_response_time = | |
3ff65596 | 1120 | sent.tv_sec ? tvSubMsec(sent, current_time) : -1; |
30a4f2a8 | 1121 | } |
62e76326 | 1122 | |
073ba374 AJ |
1123 | /** \par |
1124 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1125 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1126 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1127 | * not allowing connection reuse in the first place. | |
648f6eb2 AJ |
1128 | * |
1129 | * 2012-02-10: which RFC? not 2068 or 2616, | |
1130 | * tolerance there is all about whitespace between requests and header tokens. | |
5fa061b8 | 1131 | */ |
5fa061b8 | 1132 | |
ba82c452 | 1133 | if (len == 0) { // reached EOF? |
62e76326 | 1134 | eof = 1; |
f61f0107 | 1135 | flags.do_next_read = 0; |
da6c8415 | 1136 | |
b73a07d6 | 1137 | /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n |
da6c8415 | 1138 | * Ensure here that we have at minimum two \r\n when EOF is seen. |
b73a07d6 | 1139 | * TODO: Add eof parameter to headersEnd() and move this hack there. |
da6c8415 | 1140 | */ |
b73a07d6 | 1141 | if (readBuf->contentSize() && !flags.headers_parsed) { |
da6c8415 AJ |
1142 | /* |
1143 | * Yes Henrik, there is a point to doing this. When we | |
1144 | * called httpProcessReplyHeader() before, we didn't find | |
1145 | * the end of headers, but now we are definately at EOF, so | |
1146 | * we want to process the reply headers. | |
1147 | */ | |
1148 | /* Fake an "end-of-headers" to work around such broken servers */ | |
1149 | readBuf->append("\r\n", 2); | |
da6c8415 | 1150 | } |
ba82c452 | 1151 | } |
62e76326 | 1152 | |
655daa06 AR |
1153 | processReply(); |
1154 | } | |
1155 | ||
1156 | /// processes the already read and buffered response data, possibly after | |
1157 | /// waiting for asynchronous 1xx control message processing | |
1158 | void | |
de48b288 A |
1159 | HttpStateData::processReply() |
1160 | { | |
655daa06 AR |
1161 | |
1162 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1163 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1164 | flags.handling1xx = false; | |
1165 | Must(!flags.headers_parsed); | |
1166 | } | |
1167 | ||
ba82c452 | 1168 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1169 | PROF_start(HttpStateData_processReplyHeader); | |
1170 | processReplyHeader(); | |
1171 | PROF_stop(HttpStateData_processReplyHeader); | |
1172 | ||
1173 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1174 | return; // TODO: send errors to ICAP | |
1175 | ||
ab593f19 | 1176 | adaptOrFinalizeReply(); // may write to, abort, or "close" the entry |
ba82c452 | 1177 | } |
1178 | ||
1179 | // kick more reads if needed and/or process the response body, if any | |
1180 | PROF_start(HttpStateData_processReplyBody); | |
1181 | processReplyBody(); // may call serverComplete() | |
1182 | PROF_stop(HttpStateData_processReplyBody); | |
1183 | } | |
1184 | ||
073ba374 AJ |
1185 | /** |
1186 | \retval true if we can continue with processing the body or doing ICAP. | |
1187 | */ | |
ba82c452 | 1188 | bool |
1189 | HttpStateData::continueAfterParsingHeader() | |
1190 | { | |
655daa06 AR |
1191 | if (flags.handling1xx) { |
1192 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1193 | Must(!flags.headers_parsed); | |
1194 | return false; | |
1195 | } | |
1196 | ||
073ba374 | 1197 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1198 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1199 | flags.do_next_read = 1; | |
073ba374 AJ |
1200 | /** \retval false If we have not finished parsing the headers and may get more data. |
1201 | * Schedules more reads to retrieve the missing data. | |
1202 | */ | |
ba82c452 | 1203 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1204 | return false; |
ba82c452 | 1205 | } |
1206 | ||
073ba374 | 1207 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1208 | |
1209 | err_type error = ERR_NONE; | |
1210 | ||
1211 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1212 | // check for header parsing errors | |
585ab260 | 1213 | if (HttpReply *vrep = virginReply()) { |
1214 | const http_status s = vrep->sline.status; | |
1215 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1216 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
e24f13cd | 1217 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1218 | error = ERR_INVALID_RESP; |
e1381638 AJ |
1219 | } else if (s == HTTP_HEADER_TOO_LARGE) { |
1220 | fwd->dontRetry(true); | |
1221 | error = ERR_TOO_BIG; | |
1222 | } else { | |
1223 | return true; // done parsing, got reply, and no error | |
1224 | } | |
ba82c452 | 1225 | } else { |
1226 | // parsed headers but got no reply | |
e24f13cd | 1227 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1228 | error = ERR_INVALID_RESP; |
62e76326 | 1229 | } |
090089c4 | 1230 | } else { |
ba82c452 | 1231 | assert(eof); |
9121eba6 AJ |
1232 | if (readBuf->hasContent()) { |
1233 | error = ERR_INVALID_RESP; | |
e24f13cd | 1234 | 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 |
1235 | } else { |
1236 | error = ERR_ZERO_SIZE_OBJECT; | |
e24f13cd CT |
1237 | debugs(11, (request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << |
1238 | entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); | |
9121eba6 | 1239 | } |
2afaba07 | 1240 | } |
ba82c452 | 1241 | |
1242 | assert(error != ERR_NONE); | |
1243 | entry->reset(); | |
913524f0 | 1244 | fwd->fail(new ErrorState(error, HTTP_BAD_GATEWAY, fwd->request)); |
ba82c452 | 1245 | flags.do_next_read = 0; |
8d71285d | 1246 | serverConnection->close(); |
ba82c452 | 1247 | return false; // quit on error |
2afaba07 | 1248 | } |
1249 | ||
821beb5e AR |
1250 | /** truncate what we read if we read too much so that writeReplyBody() |
1251 | writes no more than what we should have read */ | |
1252 | void | |
1253 | HttpStateData::truncateVirginBody() | |
1254 | { | |
1255 | assert(flags.headers_parsed); | |
1256 | ||
1257 | HttpReply *vrep = virginReply(); | |
1258 | int64_t clen = -1; | |
1259 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1260 | return; // no body or a body of unknown size, including chunked | |
1261 | ||
1262 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; | |
e1381638 | 1263 | if (body_bytes_read - body_bytes_truncated <= clen) |
821beb5e AR |
1264 | return; // we did not read too much or already took care of the extras |
1265 | ||
1266 | if (const int64_t extras = body_bytes_read - body_bytes_truncated - clen) { | |
1267 | // server sent more that the advertised content length | |
e1381638 AJ |
1268 | debugs(11,5, HERE << "body_bytes_read=" << body_bytes_read << |
1269 | " clen=" << clen << '/' << vrep->content_length << | |
1270 | " body_bytes_truncated=" << body_bytes_truncated << '+' << extras); | |
821beb5e AR |
1271 | |
1272 | readBuf->truncate(extras); | |
1273 | body_bytes_truncated += extras; | |
1274 | } | |
1275 | } | |
1276 | ||
073ba374 | 1277 | /** |
2afaba07 | 1278 | * Call this when there is data from the origin server |
1279 | * which should be sent to either StoreEntry, or to ICAP... | |
1280 | */ | |
1281 | void | |
5f8252d2 | 1282 | HttpStateData::writeReplyBody() |
2afaba07 | 1283 | { |
821beb5e | 1284 | truncateVirginBody(); // if needed |
5f8252d2 | 1285 | const char *data = readBuf->content(); |
1286 | int len = readBuf->contentSize(); | |
bc81cb2b | 1287 | addVirginReplyBody(data, len); |
5f8252d2 | 1288 | readBuf->consume(len); |
af0bb8e5 | 1289 | } |
fc68f6b1 | 1290 | |
af0bb8e5 | 1291 | bool |
1292 | HttpStateData::decodeAndWriteReplyBody() | |
1293 | { | |
1294 | const char *data = NULL; | |
1295 | int len; | |
e053c141 | 1296 | bool wasThereAnException = false; |
af0bb8e5 | 1297 | assert(flags.chunked); |
1298 | assert(httpChunkDecoder); | |
1299 | SQUID_ENTER_THROWING_CODE(); | |
1300 | MemBuf decodedData; | |
1301 | decodedData.init(); | |
e053c141 | 1302 | const bool doneParsing = httpChunkDecoder->parse(readBuf,&decodedData); |
af0bb8e5 | 1303 | len = decodedData.contentSize(); |
1304 | data=decodedData.content(); | |
1305 | addVirginReplyBody(data, len); | |
e053c141 | 1306 | if (doneParsing) { |
839291ac AJ |
1307 | lastChunk = 1; |
1308 | flags.do_next_read = 0; | |
af0bb8e5 | 1309 | } |
e053c141 FC |
1310 | SQUID_EXIT_THROWING_CODE(wasThereAnException); |
1311 | return wasThereAnException; | |
e6ccf245 | 1312 | } |
1313 | ||
073ba374 | 1314 | /** |
2afaba07 | 1315 | * processReplyBody has two purposes: |
1316 | * 1 - take the reply body data, if any, and put it into either | |
1317 | * the StoreEntry, or give it over to ICAP. | |
1318 | * 2 - see if we made it to the end of the response (persistent | |
1319 | * connections and such) | |
1320 | */ | |
e6ccf245 | 1321 | void |
2afaba07 | 1322 | HttpStateData::processReplyBody() |
e6ccf245 | 1323 | { |
b7ac5457 | 1324 | Ip::Address client_addr; |
d67acb4e | 1325 | bool ispinned = false; |
fc68f6b1 | 1326 | |
1a98175f | 1327 | if (!flags.headers_parsed) { |
f61f0107 | 1328 | flags.do_next_read = 1; |
5f8252d2 | 1329 | maybeReadVirginBody(); |
62e76326 | 1330 | return; |
528b2c61 | 1331 | } |
62e76326 | 1332 | |
a83c6ed6 | 1333 | #if USE_ADAPTATION |
c30ac6ea | 1334 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1335 | if (adaptationAccessCheckPending) |
2afaba07 | 1336 | return; |
fc68f6b1 | 1337 | |
2afaba07 | 1338 | #endif |
62e76326 | 1339 | |
2afaba07 | 1340 | /* |
1341 | * At this point the reply headers have been parsed and consumed. | |
1342 | * That means header content has been removed from readBuf and | |
1343 | * it contains only body data. | |
1344 | */ | |
ef85ab2f DK |
1345 | if (entry->isAccepting()) { |
1346 | if (flags.chunked) { | |
1347 | if (!decodeAndWriteReplyBody()) { | |
1348 | flags.do_next_read = 0; | |
1349 | serverComplete(); | |
1350 | return; | |
1351 | } | |
1352 | } else | |
1353 | writeReplyBody(); | |
1354 | } | |
528b2c61 | 1355 | |
e6ccf245 | 1356 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 AJ |
1357 | // The above writeReplyBody() call may have aborted the store entry. |
1358 | abortTransaction("store entry aborted while storing reply"); | |
1359 | return; | |
62e76326 | 1360 | } else |
1361 | switch (persistentConnStatus()) { | |
dc49061a | 1362 | case INCOMPLETE_MSG: { |
3e4bebf8 | 1363 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG from " << serverConnection); |
21b92762 | 1364 | /* Wait for more data or EOF condition */ |
8d77a37c | 1365 | AsyncCall::Pointer nil; |
21b92762 | 1366 | if (flags.keepalive_broken) { |
8d77a37c | 1367 | commSetConnTimeout(serverConnection, 10, nil); |
21b92762 | 1368 | } else { |
8d77a37c | 1369 | commSetConnTimeout(serverConnection, Config.Timeout.read, nil); |
21b92762 | 1370 | } |
1371 | ||
f61f0107 | 1372 | flags.do_next_read = 1; |
dc49061a A |
1373 | } |
1374 | break; | |
62e76326 | 1375 | |
1376 | case COMPLETE_PERSISTENT_MSG: | |
3e4bebf8 | 1377 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG from " << serverConnection); |
62e76326 | 1378 | /* yes we have to clear all these! */ |
8d77a37c | 1379 | commUnsetConnTimeout(serverConnection); |
f61f0107 | 1380 | flags.do_next_read = 0; |
62e76326 | 1381 | |
8d71285d | 1382 | comm_remove_close_handler(serverConnection->fd, closeHandler); |
dc56a9b1 | 1383 | closeHandler = NULL; |
8d71285d | 1384 | fwd->unregister(serverConnection); |
fc68f6b1 | 1385 | |
e24f13cd CT |
1386 | if (request->flags.spoof_client_ip) |
1387 | client_addr = request->client_addr; | |
fc68f6b1 | 1388 | |
9e008dda AJ |
1389 | if (request->flags.pinned) { |
1390 | ispinned = true; | |
1391 | } else if (request->flags.connection_auth && request->flags.auth_sent) { | |
1392 | ispinned = true; | |
1393 | } | |
1394 | ||
e24f13cd CT |
1395 | if (request->pinnedConnection() && ispinned) { |
1396 | request->pinnedConnection()->pinConnection(serverConnection, request, _peer, | |
9e008dda | 1397 | (request->flags.connection_auth != 0)); |
bd0723ad | 1398 | } else { |
e24f13cd | 1399 | fwd->pconnPush(serverConnection, request->peer_host ? request->peer_host : request->GetHost()); |
bd0723ad | 1400 | } |
1401 | ||
8d71285d | 1402 | serverConnection = NULL; |
5f8252d2 | 1403 | serverComplete(); |
62e76326 | 1404 | return; |
1405 | ||
1406 | case COMPLETE_NONPERSISTENT_MSG: | |
3e4bebf8 | 1407 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG from " << serverConnection); |
5f8252d2 | 1408 | serverComplete(); |
62e76326 | 1409 | return; |
1410 | } | |
1411 | ||
5f8252d2 | 1412 | maybeReadVirginBody(); |
c4b7a5a9 | 1413 | } |
1414 | ||
1415 | void | |
5f8252d2 | 1416 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1417 | { |
85bef0a7 AR |
1418 | // too late to read |
1419 | if (!Comm::IsConnOpen(serverConnection) || fd_table[serverConnection->fd].closing()) | |
1420 | return; | |
1421 | ||
52edecde | 1422 | // we may need to grow the buffer if headers do not fit |
1c9605c5 | 1423 | const int minRead = flags.headers_parsed ? 0 :1024; |
d5f8d05f | 1424 | const int read_size = replyBodySpace(*readBuf, minRead); |
2afaba07 | 1425 | |
5f8252d2 | 1426 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
9cf7de1b | 1427 | " read up to " << read_size << " bytes from " << serverConnection); |
2afaba07 | 1428 | |
1429 | /* | |
1430 | * why <2? Because delayAwareRead() won't actually read if | |
1431 | * you ask it to read 1 byte. The delayed read request | |
1432 | * just gets re-queued until the client side drains, then | |
1433 | * the I/O thread hangs. Better to not register any read | |
1434 | * handler until we get a notification from someone that | |
1435 | * its okay to read again. | |
1436 | */ | |
d5f8d05f | 1437 | if (read_size < 2) |
52edecde | 1438 | return; |
2afaba07 | 1439 | |
f61f0107 | 1440 | if (flags.do_next_read) { |
dc56a9b1 | 1441 | flags.do_next_read = 0; |
1442 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
3e4bebf8 | 1443 | entry->delayAwareRead(serverConnection, readBuf->space(read_size), read_size, |
4cb2536f | 1444 | JobCallback(11, 5, Dialer, this, HttpStateData::readReply)); |
528b2c61 | 1445 | } |
090089c4 | 1446 | } |
1447 | ||
39cb8c41 | 1448 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1449 | void |
39cb8c41 | 1450 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1451 | { |
9cf7de1b | 1452 | debugs(11, 5, HERE << serverConnection << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1453 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1454 | |
528b2c61 | 1455 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1456 | #endif |
62e76326 | 1457 | |
dc56a9b1 | 1458 | if (io.size > 0) { |
49ae8b95 | 1459 | fd_bytes(io.fd, io.size, FD_WRITE); |
e4f1fdae FC |
1460 | kb_incr(&(statCounter.server.all.kbytes_out), io.size); |
1461 | kb_incr(&(statCounter.server.http.kbytes_out), io.size); | |
ee1679df | 1462 | } |
62e76326 | 1463 | |
dc56a9b1 | 1464 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1465 | return; |
1466 | ||
dc56a9b1 | 1467 | if (io.flag) { |
913524f0 | 1468 | ErrorState *err = new ErrorState(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
dc56a9b1 | 1469 | err->xerrno = io.xerrno; |
1470 | fwd->fail(err); | |
8d71285d | 1471 | serverConnection->close(); |
62e76326 | 1472 | return; |
090089c4 | 1473 | } |
72b63f06 | 1474 | |
39cb8c41 AR |
1475 | sendComplete(); |
1476 | } | |
1477 | ||
1478 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1479 | void | |
1480 | HttpStateData::sendComplete() | |
1481 | { | |
2afaba07 | 1482 | /* |
1483 | * Set the read timeout here because it hasn't been set yet. | |
1484 | * We only set the read timeout after the request has been | |
1485 | * fully written to the server-side. If we start the timeout | |
1486 | * after connection establishment, then we are likely to hit | |
1487 | * the timeout for POST/PUT requests that have very large | |
1488 | * request bodies. | |
1489 | */ | |
dc56a9b1 | 1490 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1491 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1492 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1493 | |
8d77a37c | 1494 | commSetConnTimeout(serverConnection, Config.Timeout.read, timeoutCall); |
dc56a9b1 | 1495 | |
1496 | flags.request_sent = 1; | |
e1381638 | 1497 | |
e24f13cd | 1498 | request->hier.peer_http_request_sent = current_time; |
090089c4 | 1499 | } |
1500 | ||
5f8252d2 | 1501 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1502 | void |
5f8252d2 | 1503 | HttpStateData::closeServer() |
2afaba07 | 1504 | { |
9cf7de1b | 1505 | debugs(11,5, HERE << "closing HTTP server " << serverConnection << " this " << this); |
fc68f6b1 | 1506 | |
9cf7de1b | 1507 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d AJ |
1508 | fwd->unregister(serverConnection); |
1509 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
dc56a9b1 | 1510 | closeHandler = NULL; |
8d71285d | 1511 | serverConnection->close(); |
2afaba07 | 1512 | } |
5f8252d2 | 1513 | } |
2afaba07 | 1514 | |
5f8252d2 | 1515 | bool |
1516 | HttpStateData::doneWithServer() const | |
1517 | { | |
9cf7de1b | 1518 | return !Comm::IsConnOpen(serverConnection); |
2afaba07 | 1519 | } |
1520 | ||
ee0b94f4 HN |
1521 | /* |
1522 | * Fixup authentication request headers for special cases | |
1523 | */ | |
1524 | static void | |
e24f13cd | 1525 | httpFixupAuthentication(HttpRequest * request, const HttpHeader * hdr_in, HttpHeader * hdr_out, http_state_flags flags) |
ee0b94f4 HN |
1526 | { |
1527 | http_hdr_type header = flags.originpeer ? HDR_AUTHORIZATION : HDR_PROXY_AUTHORIZATION; | |
1528 | ||
1529 | /* Nothing to do unless we are forwarding to a peer */ | |
1530 | if (!request->flags.proxying) | |
f54f527e | 1531 | return; |
ee0b94f4 HN |
1532 | |
1533 | /* Needs to be explicitly enabled */ | |
e24f13cd | 1534 | if (!request->peer_login) |
f54f527e | 1535 | return; |
ee0b94f4 HN |
1536 | |
1537 | /* Maybe already dealt with? */ | |
1538 | if (hdr_out->has(header)) | |
f54f527e | 1539 | return; |
ee0b94f4 HN |
1540 | |
1541 | /* Nothing to do here for PASSTHRU */ | |
e24f13cd | 1542 | if (strcmp(request->peer_login, "PASSTHRU") == 0) |
f54f527e | 1543 | return; |
ee0b94f4 HN |
1544 | |
1545 | /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */ | |
e24f13cd | 1546 | if (flags.originpeer && strcmp(request->peer_login, "PROXYPASS") == 0 && hdr_in->has(HDR_PROXY_AUTHORIZATION)) { |
f54f527e | 1547 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
ee0b94f4 | 1548 | |
f54f527e AJ |
1549 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1550 | hdr_out->putStr(header, auth); | |
1551 | return; | |
1552 | } | |
ee0b94f4 HN |
1553 | } |
1554 | ||
1555 | /* Special mode to pass the username to the upstream cache */ | |
e24f13cd | 1556 | if (*request->peer_login == '*') { |
f54f527e AJ |
1557 | char loginbuf[256]; |
1558 | const char *username = "-"; | |
ee0b94f4 | 1559 | |
e24f13cd CT |
1560 | if (request->extacl_user.size()) |
1561 | username = request->extacl_user.termedBuf(); | |
2f1431ea | 1562 | #if USE_AUTH |
e24f13cd CT |
1563 | else if (request->auth_user_request != NULL) |
1564 | username = request->auth_user_request->username(); | |
2f1431ea | 1565 | #endif |
ee0b94f4 | 1566 | |
e24f13cd | 1567 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, request->peer_login + 1); |
ee0b94f4 | 1568 | |
f54f527e | 1569 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1570 | old_base64_encode(loginbuf)); |
f54f527e | 1571 | return; |
ee0b94f4 HN |
1572 | } |
1573 | ||
1574 | /* external_acl provided credentials */ | |
e24f13cd CT |
1575 | if (request->extacl_user.size() && request->extacl_passwd.size() && |
1576 | (strcmp(request->peer_login, "PASS") == 0 || | |
1577 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
f54f527e AJ |
1578 | char loginbuf[256]; |
1579 | snprintf(loginbuf, sizeof(loginbuf), SQUIDSTRINGPH ":" SQUIDSTRINGPH, | |
e24f13cd CT |
1580 | SQUIDSTRINGPRINT(request->extacl_user), |
1581 | SQUIDSTRINGPRINT(request->extacl_passwd)); | |
f54f527e | 1582 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1583 | old_base64_encode(loginbuf)); |
f54f527e | 1584 | return; |
ee0b94f4 | 1585 | } |
8fdaa8af AJ |
1586 | // if no external user credentials are available to fake authentication with PASS acts like PASSTHRU |
1587 | if (strcmp(request->peer_login, "PASS") == 0) | |
28204b3b | 1588 | return; |
ee0b94f4 | 1589 | |
9ca29d23 | 1590 | /* Kerberos login to peer */ |
2f1431ea | 1591 | #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI |
e24f13cd | 1592 | if (strncmp(request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { |
9ca29d23 AJ |
1593 | char *Token=NULL; |
1594 | char *PrincipalName=NULL,*p; | |
e24f13cd | 1595 | if ((p=strchr(request->peer_login,':')) != NULL ) { |
9ca29d23 AJ |
1596 | PrincipalName=++p; |
1597 | } | |
e24f13cd | 1598 | Token = peer_proxy_negotiate_auth(PrincipalName, request->peer_host); |
9ca29d23 | 1599 | if (Token) { |
63f03f79 | 1600 | httpHeaderPutStrf(hdr_out, header, "Negotiate %s",Token); |
9ca29d23 AJ |
1601 | } |
1602 | return; | |
1603 | } | |
1604 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1605 | ||
0606266f | 1606 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
e24f13cd | 1607 | old_base64_encode(request->peer_login)); |
ee0b94f4 HN |
1608 | return; |
1609 | } | |
1610 | ||
99edd1c3 | 1611 | /* |
9e008dda | 1612 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1613 | * used by buildRequestPrefix() |
818c6c9e | 1614 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1615 | */ |
e1e72f06 | 1616 | void |
e5ee81f0 | 1617 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
e5ee81f0 | 1618 | StoreEntry * entry, |
4bf68cfa | 1619 | const AccessLogEntryPointer &al, |
e5ee81f0 | 1620 | HttpHeader * hdr_out, |
386c7842 | 1621 | const http_state_flags flags) |
6bf8443a | 1622 | { |
99edd1c3 | 1623 | /* building buffer for complex strings */ |
5999b776 | 1624 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1625 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1626 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
e24f13cd | 1627 | const HttpHeader *hdr_in = &request->header; |
67c06f0d | 1628 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1629 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1630 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1631 | |
262a0e14 | 1632 | /* append our IMS header */ |
fa3e249f | 1633 | if (request->lastmod > -1) |
a9925b40 | 1634 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1635 | |
e24f13cd | 1636 | bool we_do_ranges = decideIfWeDoRanges (request); |
528b2c61 | 1637 | |
30abd221 | 1638 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1639 | |
a9925b40 | 1640 | while ((e = hdr_in->getEntry(&pos))) |
e24f13cd | 1641 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1642 | |
43ae1d95 | 1643 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1644 | * into offset-length data, and this works around our inability to do so. |
1645 | */ | |
e24f13cd | 1646 | if (!we_do_ranges && request->multipartRangeRequest()) { |
62e76326 | 1647 | /* don't cache the result */ |
e24f13cd | 1648 | request->flags.cachable = 0; |
62e76326 | 1649 | /* pretend it's not a range request */ |
e24f13cd CT |
1650 | delete request->range; |
1651 | request->range = NULL; | |
1652 | request->flags.range = 0; | |
62e76326 | 1653 | } |
528b2c61 | 1654 | |
99edd1c3 | 1655 | /* append Via */ |
736cb6aa | 1656 | if (Config.onoff.via) { |
30abd221 | 1657 | String strVia; |
a9925b40 | 1658 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1659 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
e24f13cd CT |
1660 | request->http_ver.major, |
1661 | request->http_ver.minor, ThisCache); | |
62e76326 | 1662 | strListAdd(&strVia, bbuf, ','); |
d53b3f6d | 1663 | hdr_out->putStr(HDR_VIA, strVia.termedBuf()); |
30abd221 | 1664 | strVia.clean(); |
736cb6aa | 1665 | } |
62e76326 | 1666 | |
e24f13cd | 1667 | if (request->flags.accelerated) { |
43ae1d95 | 1668 | /* Append Surrogate-Capabilities */ |
45cca89d AJ |
1669 | String strSurrogate(hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
1670 | #if USE_SQUID_ESI | |
1671 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1672 | #else | |
1673 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1674 | #endif | |
43ae1d95 | 1675 | strListAdd(&strSurrogate, bbuf, ','); |
d53b3f6d | 1676 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1677 | } |
43ae1d95 | 1678 | |
67c06f0d | 1679 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1680 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 AR |
1681 | |
1682 | String strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1683 | ||
1684 | if (strFwd.size() > 65536/2) { | |
1685 | // There is probably a forwarding loop with Via detection disabled. | |
1686 | // If we do nothing, String will assert on overflow soon. | |
1687 | // TODO: Terminate all transactions with huge XFF? | |
1688 | strFwd = "error"; | |
1689 | ||
1690 | static int warnedCount = 0; | |
1691 | if (warnedCount++ < 100) { | |
e24f13cd | 1692 | const char *url = entry ? entry->url() : urlCanonical(request); |
e0236918 | 1693 | debugs(11, DBG_IMPORTANT, "Warning: likely forwarding loop with " << url); |
c4f30223 AR |
1694 | } |
1695 | } | |
1696 | ||
9e008dda | 1697 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1698 | /** If set to ON - append client IP or 'unknown'. */ |
e24f13cd | 1699 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1700 | strListAdd(&strFwd, "unknown", ','); |
1701 | else | |
e24f13cd | 1702 | strListAdd(&strFwd, request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); |
9e008dda | 1703 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1704 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1705 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1706 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1707 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1708 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1709 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
e24f13cd | 1710 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1711 | strFwd = "unknown"; |
1712 | else | |
e24f13cd | 1713 | strFwd = request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); |
67c06f0d | 1714 | } |
9e008dda | 1715 | if (strFwd.size() > 0) |
d53b3f6d | 1716 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1717 | } |
67c06f0d | 1718 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1719 | |
99edd1c3 | 1720 | /* append Host if not there already */ |
a9925b40 | 1721 | if (!hdr_out->has(HDR_HOST)) { |
e24f13cd CT |
1722 | if (request->peer_domain) { |
1723 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
1724 | } else if (request->port == urlDefaultPort(request->protocol)) { | |
62e76326 | 1725 | /* use port# only if not default */ |
e24f13cd | 1726 | hdr_out->putStr(HDR_HOST, request->GetHost()); |
62e76326 | 1727 | } else { |
1728 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1729 | request->GetHost(), |
1730 | (int) request->port); | |
62e76326 | 1731 | } |
6bf8443a | 1732 | } |
62e76326 | 1733 | |
c68e9c6b | 1734 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1735 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
e24f13cd | 1736 | if (!request->flags.proxying && request->login && *request->login) { |
62e76326 | 1737 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
8bdd0cec | 1738 | old_base64_encode(request->login)); |
62e76326 | 1739 | } |
c68e9c6b | 1740 | } |
62e76326 | 1741 | |
ee0b94f4 | 1742 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
e24f13cd | 1743 | httpFixupAuthentication(request, hdr_in, hdr_out, flags); |
62e76326 | 1744 | |
ee0b94f4 HN |
1745 | /* append Cache-Control, add max-age if not there already */ |
1746 | { | |
a9925b40 | 1747 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1748 | |
1749 | if (!cc) | |
a4a03b37 | 1750 | cc = new HttpHdrCc(); |
62e76326 | 1751 | |
7dc5c309 AJ |
1752 | #if 0 /* see bug 2330 */ |
1753 | /* Set no-cache if determined needed but not found */ | |
e24f13cd | 1754 | if (request->flags.nocache) |
7dc5c309 AJ |
1755 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1756 | #endif | |
1757 | ||
af6a12ee | 1758 | /* Add max-age only without no-cache */ |
904a4905 | 1759 | if (!cc->hasMaxAge() && !cc->noCache()) { |
43ae1d95 | 1760 | const char *url = |
e24f13cd | 1761 | entry ? entry->url() : urlCanonical(request); |
cf7c2e94 | 1762 | cc->maxAge(getMaxAge(url)); |
62e76326 | 1763 | |
62e76326 | 1764 | } |
1765 | ||
ce2d6441 | 1766 | /* Enforce sibling relations */ |
62e76326 | 1767 | if (flags.only_if_cached) |
4ce6e3b5 | 1768 | cc->onlyIfCached(true); |
62e76326 | 1769 | |
a9925b40 | 1770 | hdr_out->putCc(cc); |
62e76326 | 1771 | |
3d7782c1 | 1772 | delete cc; |
6bf8443a | 1773 | } |
62e76326 | 1774 | |
99edd1c3 | 1775 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1776 | if (flags.keepalive) { |
95e78500 | 1777 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
603a02fd | 1778 | } |
62e76326 | 1779 | |
a7ad6e4e | 1780 | /* append Front-End-Https */ |
1781 | if (flags.front_end_https) { | |
0c3d3f65 | 1782 | if (flags.front_end_https == 1 || request->protocol == AnyP::PROTO_HTTPS) |
a9925b40 | 1783 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1784 | } |
1785 | ||
e31a1e67 AR |
1786 | if (flags.chunked_request) { |
1787 | // Do not just copy the original value so that if the client-side | |
1788 | // starts decode other encodings, this code may remain valid. | |
39cb8c41 AR |
1789 | hdr_out->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1790 | } | |
1791 | ||
6bccf575 | 1792 | /* Now mangle the headers. */ |
4f56514c | 1793 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1794 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1795 | |
f4698e0b | 1796 | if (Config.request_header_add && !Config.request_header_add->empty()) |
4bf68cfa | 1797 | httpHdrAdd(hdr_out, request, al, *Config.request_header_add); |
f4698e0b | 1798 | |
30abd221 | 1799 | strConnection.clean(); |
99edd1c3 | 1800 | } |
1801 | ||
9e498bfb AJ |
1802 | /** |
1803 | * Decides whether a particular header may be cloned from the received Clients request | |
1804 | * to our outgoing fetch request. | |
1805 | */ | |
528b2c61 | 1806 | void |
e24f13cd | 1807 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags flags) |
528b2c61 | 1808 | { |
e8466ea9 | 1809 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 1810 | |
528b2c61 | 1811 | switch (e->id) { |
62e76326 | 1812 | |
af6a12ee | 1813 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 1814 | |
be753325 | 1815 | case HDR_PROXY_AUTHORIZATION: |
9e498bfb AJ |
1816 | /** \par Proxy-Authorization: |
1817 | * Only pass on proxy authentication to peers for which | |
62e76326 | 1818 | * authentication forwarding is explicitly enabled |
1819 | */ | |
e24f13cd CT |
1820 | if (!flags.originpeer && flags.proxying && request->peer_login && |
1821 | (strcmp(request->peer_login, "PASS") == 0 || | |
1822 | strcmp(request->peer_login, "PROXYPASS") == 0 || | |
1823 | strcmp(request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 1824 | hdr_out->addEntry(e->clone()); |
62e76326 | 1825 | } |
62e76326 | 1826 | break; |
1827 | ||
af6a12ee | 1828 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb AJ |
1829 | |
1830 | case HDR_CONNECTION: /** \par Connection: */ | |
1831 | case HDR_TE: /** \par TE: */ | |
1832 | case HDR_KEEP_ALIVE: /** \par Keep-Alive: */ | |
1833 | case HDR_PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
a1651bad | 1834 | case HDR_TRAILER: /** \par Trailer: */ |
9e498bfb AJ |
1835 | case HDR_UPGRADE: /** \par Upgrade: */ |
1836 | case HDR_TRANSFER_ENCODING: /** \par Transfer-Encoding: */ | |
1837 | break; | |
1838 | ||
af6a12ee | 1839 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 1840 | |
be753325 | 1841 | case HDR_AUTHORIZATION: |
9e498bfb AJ |
1842 | /** \par WWW-Authorization: |
1843 | * Pass on WWW authentication */ | |
62e76326 | 1844 | |
1845 | if (!flags.originpeer) { | |
eede25e7 | 1846 | hdr_out->addEntry(e->clone()); |
62e76326 | 1847 | } else { |
9e498bfb | 1848 | /** \note In accelerators, only forward authentication if enabled |
ee0b94f4 | 1849 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 1850 | */ |
e24f13cd CT |
1851 | if (request->peer_login && |
1852 | (strcmp(request->peer_login, "PASS") == 0 || | |
1853 | strcmp(request->peer_login, "PASSTHRU") == 0 || | |
1854 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1855 | hdr_out->addEntry(e->clone()); |
62e76326 | 1856 | } |
1857 | } | |
1858 | ||
1859 | break; | |
1860 | ||
be753325 | 1861 | case HDR_HOST: |
9e498bfb | 1862 | /** \par Host: |
b883b594 | 1863 | * Normally Squid rewrites the Host: header. |
1864 | * However, there is one case when we don't: If the URL | |
62e76326 | 1865 | * went through our redirector and the admin configured |
1866 | * 'redir_rewrites_host' to be off. | |
1867 | */ | |
e24f13cd CT |
1868 | if (request->peer_domain) |
1869 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
488b27c5 | 1870 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1871 | hdr_out->addEntry(e->clone()); |
b883b594 | 1872 | else { |
1873 | /* use port# only if not default */ | |
1874 | ||
e24f13cd CT |
1875 | if (request->port == urlDefaultPort(request->protocol)) { |
1876 | hdr_out->putStr(HDR_HOST, request->GetHost()); | |
b883b594 | 1877 | } else { |
1878 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1879 | request->GetHost(), |
1880 | (int) request->port); | |
b883b594 | 1881 | } |
1882 | } | |
62e76326 | 1883 | |
1884 | break; | |
1885 | ||
be753325 | 1886 | case HDR_IF_MODIFIED_SINCE: |
9e498bfb | 1887 | /** \par If-Modified-Since: |
af6a12ee | 1888 | * append unless we added our own; |
9e498bfb | 1889 | * \note at most one client's ims header can pass through */ |
b883b594 | 1890 | |
a9925b40 | 1891 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1892 | hdr_out->addEntry(e->clone()); |
62e76326 | 1893 | |
1894 | break; | |
1895 | ||
be753325 | 1896 | case HDR_MAX_FORWARDS: |
9e498bfb | 1897 | /** \par Max-Forwards: |
fc90edc3 | 1898 | * pass only on TRACE or OPTIONS requests */ |
e24f13cd | 1899 | if (request->method == METHOD_TRACE || request->method == METHOD_OPTIONS) { |
fc90edc3 | 1900 | const int64_t hops = e->getInt64(); |
62e76326 | 1901 | |
1902 | if (hops > 0) | |
fc90edc3 | 1903 | hdr_out->putInt64(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1904 | } |
1905 | ||
1906 | break; | |
1907 | ||
be753325 | 1908 | case HDR_VIA: |
9e498bfb AJ |
1909 | /** \par Via: |
1910 | * If Via is disabled then forward any received header as-is. | |
1911 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 1912 | |
1913 | if (!Config.onoff.via) | |
eede25e7 | 1914 | hdr_out->addEntry(e->clone()); |
62e76326 | 1915 | |
1916 | break; | |
1917 | ||
be753325 | 1918 | case HDR_RANGE: |
62e76326 | 1919 | |
be753325 | 1920 | case HDR_IF_RANGE: |
62e76326 | 1921 | |
be753325 | 1922 | case HDR_REQUEST_RANGE: |
9e498bfb AJ |
1923 | /** \par Range:, If-Range:, Request-Range: |
1924 | * Only pass if we accept ranges */ | |
62e76326 | 1925 | if (!we_do_ranges) |
eede25e7 | 1926 | hdr_out->addEntry(e->clone()); |
62e76326 | 1927 | |
1928 | break; | |
1929 | ||
95e78500 AJ |
1930 | case HDR_PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
1931 | break; | |
62e76326 | 1932 | |
f228d6f6 AR |
1933 | case HDR_CONTENT_LENGTH: |
1934 | // pass through unless we chunk; also, keeping this away from default | |
1935 | // prevents request smuggling via Connection: Content-Length tricks | |
1936 | if (!flags.chunked_request) | |
1937 | hdr_out->addEntry(e->clone()); | |
1938 | break; | |
1939 | ||
be753325 | 1940 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1941 | |
be753325 | 1942 | case HDR_CACHE_CONTROL: |
95e78500 | 1943 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
1944 | * handled specially by Squid, so leave off for now. |
1945 | * append these after the loop if needed */ | |
62e76326 | 1946 | break; |
1947 | ||
be753325 | 1948 | case HDR_FRONT_END_HTTPS: |
9e498bfb AJ |
1949 | /** \par Front-End-Https: |
1950 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 1951 | if (!flags.front_end_https) |
eede25e7 | 1952 | hdr_out->addEntry(e->clone()); |
62e76326 | 1953 | |
1954 | break; | |
1955 | ||
be753325 | 1956 | default: |
9e498bfb AJ |
1957 | /** \par default. |
1958 | * pass on all other header fields | |
1959 | * which are NOT listed by the special Connection: header. */ | |
1960 | ||
a7a42b14 | 1961 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name.termedBuf(), ',')) { |
e1ea7456 | 1962 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
1963 | return; |
1964 | } | |
1965 | ||
eede25e7 | 1966 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1967 | } |
1968 | } | |
1969 | ||
e5ee81f0 | 1970 | bool |
e24f13cd | 1971 | HttpStateData::decideIfWeDoRanges (HttpRequest * request) |
528b2c61 | 1972 | { |
e5ee81f0 | 1973 | bool result = true; |
62e76326 | 1974 | /* decide if we want to do Ranges ourselves |
1975 | * and fetch the whole object now) | |
1976 | * We want to handle Ranges ourselves iff | |
1977 | * - we can actually parse client Range specs | |
1978 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1979 | * - reply will be cachable | |
1980 | * (If the reply will be uncachable we have to throw it away after | |
1981 | * serving this request, so it is better to forward ranges to | |
1982 | * the server and fetch only the requested content) | |
1983 | */ | |
1984 | ||
e24f13cd | 1985 | int64_t roffLimit = request->getRangeOffsetLimit(); |
11e3fa1c | 1986 | |
e24f13cd CT |
1987 | if (NULL == request->range || !request->flags.cachable |
1988 | || request->range->offsetLimitExceeded(roffLimit) || request->flags.connection_auth) | |
e5ee81f0 | 1989 | result = false; |
62e76326 | 1990 | |
9e008dda | 1991 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
e24f13cd CT |
1992 | request->range << ", cachable: " << |
1993 | request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 1994 | |
1995 | return result; | |
528b2c61 | 1996 | } |
1997 | ||
62e76326 | 1998 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1999 | * return the length of the prefix */ |
9bc73deb | 2000 | mb_size_t |
e24f13cd | 2001 | HttpStateData::buildRequestPrefix(MemBuf * mb) |
99edd1c3 | 2002 | { |
2003 | const int offset = mb->size; | |
3872be7c | 2004 | HttpVersion httpver(1,1); |
e24f13cd CT |
2005 | const char * url; |
2006 | if (_peer && !_peer->options.originserver) | |
2007 | url = entry->url(); | |
2008 | else | |
2009 | url = request->urlpath.termedBuf(); | |
c9fd01b4 | 2010 | mb->Printf("%s %s %s/%d.%d\r\n", |
e24f13cd CT |
2011 | RequestMethodStr(request->method), |
2012 | url && *url ? url : "/", | |
c9fd01b4 | 2013 | AnyP::ProtocolType_str[httpver.protocol], |
2fe7eff9 | 2014 | httpver.major,httpver.minor); |
99edd1c3 | 2015 | /* build and pack headers */ |
2016 | { | |
75faaa7a | 2017 | HttpHeader hdr(hoRequest); |
62e76326 | 2018 | Packer p; |
4bf68cfa | 2019 | httpBuildRequestHeader(request, entry, fwd->al, &hdr, flags); |
9e008dda | 2020 | |
e24f13cd CT |
2021 | if (request->flags.pinned && request->flags.connection_auth) |
2022 | request->flags.auth_sent = 1; | |
d67acb4e | 2023 | else if (hdr.has(HDR_AUTHORIZATION)) |
e24f13cd | 2024 | request->flags.auth_sent = 1; |
d67acb4e | 2025 | |
62e76326 | 2026 | packerToMemInit(&p, mb); |
a9925b40 | 2027 | hdr.packInto(&p); |
519e0948 | 2028 | hdr.clean(); |
62e76326 | 2029 | packerClean(&p); |
9d9d144b | 2030 | } |
99edd1c3 | 2031 | /* append header terminator */ |
2fe7eff9 | 2032 | mb->append(crlf, 2); |
99edd1c3 | 2033 | return mb->size - offset; |
6bf8443a | 2034 | } |
62e76326 | 2035 | |
090089c4 | 2036 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2037 | bool |
2bb867b5 | 2038 | HttpStateData::sendRequest() |
090089c4 | 2039 | { |
99edd1c3 | 2040 | MemBuf mb; |
090089c4 | 2041 | |
9cf7de1b | 2042 | debugs(11, 5, HERE << serverConnection << ", request " << request << ", this " << this << "."); |
a0297974 | 2043 | |
6b679a01 | 2044 | if (!Comm::IsConnOpen(serverConnection)) { |
9cf7de1b | 2045 | debugs(11,3, HERE << "cannot send request to closing " << serverConnection); |
a0297974 AR |
2046 | assert(closeHandler != NULL); |
2047 | return false; | |
2048 | } | |
2049 | ||
dc56a9b1 | 2050 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2051 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2052 | TimeoutDialer, this, HttpStateData::httpTimeout); |
8d77a37c | 2053 | commSetConnTimeout(serverConnection, Config.Timeout.lifetime, timeoutCall); |
2bb867b5 | 2054 | flags.do_next_read = 1; |
5f8252d2 | 2055 | maybeReadVirginBody(); |
2056 | ||
e24f13cd | 2057 | if (request->body_pipe != NULL) { |
123ec4de | 2058 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2059 | return false; |
9e008dda | 2060 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2061 | requestSender = JobCallback(11,5, |
4cb2536f | 2062 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2063 | |
2064 | Must(!flags.chunked_request); | |
f228d6f6 | 2065 | // use chunked encoding if we do not know the length |
e24f13cd | 2066 | if (request->content_length < 0) |
e31a1e67 | 2067 | flags.chunked_request = 1; |
5f8252d2 | 2068 | } else { |
2069 | assert(!requestBodySource); | |
9e008dda | 2070 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2071 | requestSender = JobCallback(11,5, |
39cb8c41 | 2072 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2073 | } |
54220df8 | 2074 | |
2bb867b5 | 2075 | if (_peer != NULL) { |
2076 | if (_peer->options.originserver) { | |
2077 | flags.proxying = 0; | |
2078 | flags.originpeer = 1; | |
62e76326 | 2079 | } else { |
2bb867b5 | 2080 | flags.proxying = 1; |
2081 | flags.originpeer = 0; | |
62e76326 | 2082 | } |
be753325 | 2083 | } else { |
2bb867b5 | 2084 | flags.proxying = 0; |
2085 | flags.originpeer = 0; | |
be753325 | 2086 | } |
62e76326 | 2087 | |
efb9218c | 2088 | /* |
99edd1c3 | 2089 | * Is keep-alive okay for all request methods? |
efb9218c | 2090 | */ |
e24f13cd | 2091 | if (request->flags.must_keepalive) |
9e008dda | 2092 | flags.keepalive = 1; |
d67acb4e | 2093 | else if (!Config.onoff.server_pconns) |
2bb867b5 | 2094 | flags.keepalive = 0; |
2095 | else if (_peer == NULL) | |
2096 | flags.keepalive = 1; | |
2097 | else if (_peer->stats.n_keepalives_sent < 10) | |
2098 | flags.keepalive = 1; | |
2099 | else if ((double) _peer->stats.n_keepalives_recv / | |
2100 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
2101 | flags.keepalive = 1; | |
2102 | ||
2103 | if (_peer) { | |
2ecba5b6 | 2104 | /*The old code here was |
e24f13cd CT |
2105 | if (neighborType(_peer, request) == PEER_SIBLING && ... |
2106 | which is equivalent to: | |
2107 | if (neighborType(_peer, NULL) == PEER_SIBLING && ... | |
2108 | or better: | |
2109 | if (((_peer->type == PEER_MULTICAST && p->options.mcast_siblings) || | |
2110 | _peer->type == PEER_SIBLINGS ) && _peer->options.allow_miss) | |
2111 | flags.only_if_cached = 1; | |
2112 | ||
2113 | But I suppose it was a bug | |
2114 | */ | |
2bb867b5 | 2115 | if (neighborType(_peer, request) == PEER_SIBLING && |
2116 | !_peer->options.allow_miss) | |
2117 | flags.only_if_cached = 1; | |
2118 | ||
2119 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2120 | } |
62e76326 | 2121 | |
2fe7eff9 | 2122 | mb.init(); |
9ca29d23 | 2123 | request->peer_host=_peer?_peer->host:NULL; |
e24f13cd | 2124 | buildRequestPrefix(&mb); |
5f8252d2 | 2125 | |
1ce34ddd AJ |
2126 | debugs(11, 2, "HTTP Server " << serverConnection); |
2127 | debugs(11, 2, "HTTP Server REQUEST:\n---------\n" << mb.buf << "\n----------"); | |
2128 | ||
2129 | Comm::Write(serverConnection, &mb, requestSender); | |
5f8252d2 | 2130 | return true; |
090089c4 | 2131 | } |
b6a2f15e | 2132 | |
39cb8c41 AR |
2133 | bool |
2134 | HttpStateData::getMoreRequestBody(MemBuf &buf) | |
2135 | { | |
2136 | // parent's implementation can handle the no-encoding case | |
e31a1e67 | 2137 | if (!flags.chunked_request) |
39cb8c41 AR |
2138 | return ServerStateData::getMoreRequestBody(buf); |
2139 | ||
2140 | MemBuf raw; | |
2141 | ||
2142 | Must(requestBodySource != NULL); | |
2143 | if (!requestBodySource->getMoreData(raw)) | |
2144 | return false; // no request body bytes to chunk yet | |
2145 | ||
2146 | // optimization: pre-allocate buffer size that should be enough | |
2147 | const mb_size_t rawDataSize = raw.contentSize(); | |
2148 | // we may need to send: hex-chunk-size CRLF raw-data CRLF last-chunk | |
2149 | buf.init(16 + 2 + rawDataSize + 2 + 5, raw.max_capacity); | |
2150 | ||
d958d14f | 2151 | buf.Printf("%x\r\n", static_cast<unsigned int>(rawDataSize)); |
39cb8c41 AR |
2152 | buf.append(raw.content(), rawDataSize); |
2153 | buf.Printf("\r\n"); | |
2154 | ||
2155 | Must(rawDataSize > 0); // we did not accidently created last-chunk above | |
2156 | ||
2157 | // Do not send last-chunk unless we successfully received everything | |
2158 | if (receivedWholeRequestBody) { | |
2159 | Must(!flags.sentLastChunk); | |
2160 | flags.sentLastChunk = true; | |
de48b288 | 2161 | buf.append("0\r\n\r\n", 5); |
39cb8c41 AR |
2162 | } |
2163 | ||
2164 | return true; | |
2165 | } | |
2166 | ||
910169e5 | 2167 | void |
b6b6f466 | 2168 | httpStart(FwdState *fwd) |
603a02fd | 2169 | { |
60745f24 | 2170 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
79628299 CT |
2171 | AsyncJob::Start(new HttpStateData(fwd)); |
2172 | } | |
62e76326 | 2173 | |
79628299 CT |
2174 | void |
2175 | HttpStateData::start() | |
2176 | { | |
2177 | if (!sendRequest()) { | |
bf8fe701 | 2178 | debugs(11, 3, "httpStart: aborted"); |
79628299 | 2179 | mustStop("HttpStateData::start failed"); |
5f8252d2 | 2180 | return; |
2181 | } | |
62e76326 | 2182 | |
95dc7ff4 FC |
2183 | ++ statCounter.server.all.requests; |
2184 | ++ statCounter.server.http.requests; | |
62e76326 | 2185 | |
b6a2f15e | 2186 | /* |
2187 | * We used to set the read timeout here, but not any more. | |
2188 | * Now its set in httpSendComplete() after the full request, | |
2189 | * including request body, has been written to the server. | |
2190 | */ | |
090089c4 | 2191 | } |
2192 | ||
39cb8c41 AR |
2193 | /// if broken posts are enabled for the request, try to fix and return true |
2194 | bool | |
2195 | HttpStateData::finishingBrokenPost() | |
2bb867b5 | 2196 | { |
626096be | 2197 | #if USE_HTTP_VIOLATIONS |
39cb8c41 AR |
2198 | if (!Config.accessList.brokenPosts) { |
2199 | debugs(11, 5, HERE << "No brokenPosts list"); | |
2200 | return false; | |
2201 | } | |
a0297974 | 2202 | |
e11513e1 | 2203 | ACLFilledChecklist ch(Config.accessList.brokenPosts, originalRequest(), NULL); |
e0f7153c | 2204 | if (ch.fastCheck() != ACCESS_ALLOWED) { |
39cb8c41 AR |
2205 | debugs(11, 5, HERE << "didn't match brokenPosts"); |
2206 | return false; | |
2207 | } | |
a0297974 | 2208 | |
9cf7de1b | 2209 | if (!Comm::IsConnOpen(serverConnection)) { |
30c48b1a | 2210 | debugs(11, 3, HERE << "ignoring broken POST for closed " << serverConnection); |
39cb8c41 AR |
2211 | assert(closeHandler != NULL); |
2212 | return true; // prevent caller from proceeding as if nothing happened | |
54220df8 | 2213 | } |
39cb8c41 | 2214 | |
30c48b1a | 2215 | debugs(11, 3, "finishingBrokenPost: fixing broken POST"); |
39cb8c41 AR |
2216 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
2217 | requestSender = JobCallback(11,5, | |
2218 | Dialer, this, HttpStateData::wroteLast); | |
b0388924 | 2219 | Comm::Write(serverConnection, "\r\n", 2, requestSender, NULL); |
39cb8c41 AR |
2220 | return true; |
2221 | #else | |
2222 | return false; | |
626096be | 2223 | #endif /* USE_HTTP_VIOLATIONS */ |
39cb8c41 AR |
2224 | } |
2225 | ||
2226 | /// if needed, write last-chunk to end the request body and return true | |
2227 | bool | |
2228 | HttpStateData::finishingChunkedRequest() | |
2229 | { | |
2230 | if (flags.sentLastChunk) { | |
2231 | debugs(11, 5, HERE << "already sent last-chunk"); | |
2232 | return false; | |
2233 | } | |
2234 | ||
2235 | Must(receivedWholeRequestBody); // or we should not be sending last-chunk | |
2236 | flags.sentLastChunk = true; | |
2237 | ||
2238 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
e0d28505 | 2239 | requestSender = JobCallback(11,5, Dialer, this, HttpStateData::wroteLast); |
b0388924 | 2240 | Comm::Write(serverConnection, "0\r\n\r\n", 5, requestSender, NULL); |
39cb8c41 AR |
2241 | return true; |
2242 | } | |
2243 | ||
2244 | void | |
2245 | HttpStateData::doneSendingRequestBody() | |
2246 | { | |
2247 | ServerStateData::doneSendingRequestBody(); | |
9cf7de1b | 2248 | debugs(11,5, HERE << serverConnection); |
39cb8c41 AR |
2249 | |
2250 | // do we need to write something after the last body byte? | |
e31a1e67 | 2251 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2252 | return; |
e31a1e67 | 2253 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2254 | return; |
aa49962c | 2255 | |
39cb8c41 | 2256 | sendComplete(); |
94439e4e | 2257 | } |
2258 | ||
5f8252d2 | 2259 | // more origin request body data is available |
2bb867b5 | 2260 | void |
5f8252d2 | 2261 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2262 | { |
6b679a01 | 2263 | if (eof || !Comm::IsConnOpen(serverConnection)) { |
5f8252d2 | 2264 | // XXX: we should check this condition in other callbacks then! |
2265 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2266 | // as a body consumer when the above condition(s) are detected. | |
e0236918 | 2267 | debugs(11, DBG_IMPORTANT, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2268 | return; |
2269 | } | |
62e76326 | 2270 | |
5f8252d2 | 2271 | assert(requestBodySource != NULL); |
fc68f6b1 | 2272 | |
5f8252d2 | 2273 | if (requestBodySource->buf().hasContent()) { |
2274 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2275 | |
2bb867b5 | 2276 | if (flags.headers_parsed && !flags.abuse_detected) { |
2277 | flags.abuse_detected = 1; | |
e0236918 | 2278 | debugs(11, DBG_IMPORTANT, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2279 | |
585ab260 | 2280 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
8d71285d | 2281 | serverConnection->close(); |
21b92762 | 2282 | return; |
2283 | } | |
2284 | } | |
b6a2f15e | 2285 | } |
5f8252d2 | 2286 | |
2287 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2288 | } |
2289 | ||
5f8252d2 | 2290 | // premature end of the request body |
2bb867b5 | 2291 | void |
5f8252d2 | 2292 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2293 | { |
5f8252d2 | 2294 | ServerStateData::handleRequestBodyProducerAborted(); |
64b66b76 | 2295 | if (entry->isEmpty()) { |
25b481e6 | 2296 | debugs(11, 3, "request body aborted: " << serverConnection); |
8b997339 AR |
2297 | // We usually get here when ICAP REQMOD aborts during body processing. |
2298 | // We might also get here if client-side aborts, but then our response | |
2299 | // should not matter because either client-side will provide its own or | |
2300 | // there will be no response at all (e.g., if the the client has left). | |
913524f0 | 2301 | ErrorState *err = new ErrorState(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, fwd->request); |
129fe2a1 | 2302 | err->detailError(ERR_DETAIL_SRV_REQMOD_REQ_BODY); |
64b66b76 CT |
2303 | fwd->fail(err); |
2304 | } | |
2305 | ||
39cb8c41 | 2306 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2307 | } |
2308 | ||
5f8252d2 | 2309 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2310 | void |
dc56a9b1 | 2311 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2312 | { |
dc56a9b1 | 2313 | if (io.size > 0) |
2314 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2315 | |
dc56a9b1 | 2316 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2317 | } |
3b299123 | 2318 | |
5f8252d2 | 2319 | // Quickly abort the transaction |
2320 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2321 | // including canceling close handlers | |
2322 | void | |
2323 | HttpStateData::abortTransaction(const char *reason) | |
2324 | { | |
2325 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
9cf7de1b | 2326 | "; " << serverConnection << ", this " << this); |
fc68f6b1 | 2327 | |
be364179 | 2328 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d | 2329 | serverConnection->close(); |
3e8c047e | 2330 | return; |
c23f0c74 | 2331 | } |
3e8c047e | 2332 | |
2333 | fwd->handleUnregisteredServerEnd(); | |
79628299 | 2334 | mustStop("HttpStateData::abortTransaction"); |
54220df8 | 2335 | } |