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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
262a0e14 | 3 | * $Id$ |
30a4f2a8 | 4 | * |
5 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) | |
6 | * AUTHOR: Harvest Derived | |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 9 | * ---------------------------------------------------------- |
30a4f2a8 | 10 | * |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
9e008dda | 24 | * |
30a4f2a8 | 25 | * This program is distributed in the hope that it will be useful, |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
9e008dda | 29 | * |
30a4f2a8 | 30 | * You should have received a copy of the GNU General Public License |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
30a4f2a8 | 34 | */ |
019dd986 | 35 | |
4a83b852 | 36 | /* |
37 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 38 | * have a look into http-anon.c to get more informations. |
4a83b852 | 39 | */ |
40 | ||
44a47c6e | 41 | #include "squid.h" |
9ca29d23 AJ |
42 | |
43 | #include "acl/FilledChecklist.h" | |
2f1431ea | 44 | #if USE_AUTH |
9ca29d23 | 45 | #include "auth/UserRequest.h" |
2f1431ea | 46 | #endif |
655daa06 | 47 | #include "base/AsyncJobCalls.h" |
3d93a84d | 48 | #include "base/TextException.h" |
25f98340 | 49 | #include "base64.h" |
8d71285d | 50 | #include "comm/Connection.h" |
ec41b64c | 51 | #include "comm/Write.h" |
9a0a18de | 52 | #if USE_DELAY_POOLS |
9ca29d23 AJ |
53 | #include "DelayPools.h" |
54 | #endif | |
8b997339 | 55 | #include "err_detail_type.h" |
aa839030 | 56 | #include "errorpage.h" |
e6ccf245 | 57 | #include "http.h" |
655daa06 | 58 | #include "HttpControlMsg.h" |
528b2c61 | 59 | #include "HttpHdrContRange.h" |
b19dd748 | 60 | #include "HttpHdrSc.h" |
61 | #include "HttpHdrScTarget.h" | |
9ca29d23 AJ |
62 | #include "HttpReply.h" |
63 | #include "HttpRequest.h" | |
64 | #include "MemBuf.h" | |
65 | #include "MemObject.h" | |
66 | #include "protos.h" | |
1fa9b1a7 | 67 | #include "rfc1738.h" |
985c86bc | 68 | #include "SquidTime.h" |
9ca29d23 | 69 | #include "Store.h" |
af0bb8e5 | 70 | |
9ca29d23 | 71 | |
af0bb8e5 | 72 | #define SQUID_ENTER_THROWING_CODE() try { |
73 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
74 | status = true; \ | |
75 | } \ | |
0a8bbeeb AR |
76 | catch (const std::exception &e) { \ |
77 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 78 | status = false; \ |
9e008dda | 79 | } |
e6ccf245 | 80 | |
2afaba07 | 81 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 82 | |
6bf8443a | 83 | static const char *const crlf = "\r\n"; |
4db43fab | 84 | |
f9cece6e | 85 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
e24f13cd | 86 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, |
9e498bfb | 87 | HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags); |
528b2c61 | 88 | |
dc56a9b1 | 89 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
e1381638 AJ |
90 | lastChunk(0), header_bytes_read(0), reply_bytes_read(0), |
91 | body_bytes_truncated(0), httpChunkDecoder(NULL) | |
2bb867b5 | 92 | { |
93 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 94 | ignoreCacheControl = false; |
95 | surrogateNoStore = false; | |
8d71285d | 96 | serverConnection = fwd->serverConnection(); |
a3d50c30 | 97 | readBuf = new MemBuf; |
9cfb5f4d | 98 | readBuf->init(16*1024, 256*1024); |
a3d50c30 | 99 | |
3ff65596 | 100 | // reset peer response time stats for %<pt |
e24f13cd CT |
101 | request->hier.peer_http_request_sent.tv_sec = 0; |
102 | request->hier.peer_http_request_sent.tv_usec = 0; | |
3ff65596 | 103 | |
5229395c AJ |
104 | if (fwd->serverConnection() != NULL) |
105 | _peer = cbdataReference(fwd->serverConnection()->getPeer()); /* might be NULL */ | |
a3d50c30 | 106 | |
107 | if (_peer) { | |
e24f13cd | 108 | request->flags.proxying = 1; |
a3d50c30 | 109 | /* |
110 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
111 | * We might end up getting the object from somewhere else if, | |
112 | * for example, the request to this neighbor fails. | |
113 | */ | |
114 | if (_peer->options.proxy_only) | |
d88e3c49 | 115 | entry->releaseRequest(); |
a3d50c30 | 116 | |
9a0a18de | 117 | #if USE_DELAY_POOLS |
a3d50c30 | 118 | entry->setNoDelay(_peer->options.no_delay); |
a3d50c30 | 119 | #endif |
a3d50c30 | 120 | } |
121 | ||
122 | /* | |
123 | * register the handler to free HTTP state data when the FD closes | |
124 | */ | |
dc56a9b1 | 125 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
d1c7f781 | 126 | closeHandler = JobCallback(9, 5, Dialer, this, HttpStateData::httpStateConnClosed); |
8d71285d | 127 | comm_add_close_handler(serverConnection->fd, closeHandler); |
2bb867b5 | 128 | } |
b8d8561b | 129 | |
2afaba07 | 130 | HttpStateData::~HttpStateData() |
f5558c95 | 131 | { |
253caccb | 132 | /* |
3b299123 | 133 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 134 | */ |
135 | ||
2afaba07 | 136 | if (!readBuf->isNull()) |
137 | readBuf->clean(); | |
62e76326 | 138 | |
2afaba07 | 139 | delete readBuf; |
140 | ||
9e008dda AJ |
141 | if (httpChunkDecoder) |
142 | delete httpChunkDecoder; | |
af0bb8e5 | 143 | |
5229395c AJ |
144 | cbdataReferenceDone(_peer); |
145 | ||
9cf7de1b | 146 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; " << serverConnection); |
5f8252d2 | 147 | } |
148 | ||
6b679a01 | 149 | const Comm::ConnectionPointer & |
e83cc785 | 150 | HttpStateData::dataConnection() const |
fc68f6b1 | 151 | { |
6b679a01 | 152 | return serverConnection; |
2afaba07 | 153 | } |
8d71285d | 154 | |
dc56a9b1 | 155 | /* |
2afaba07 | 156 | static void |
157 | httpStateFree(int fd, void *data) | |
158 | { | |
159 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
bf8fe701 | 160 | debugs(11, 5, "httpStateFree: FD " << fd << ", httpState=" << data); |
5f8252d2 | 161 | delete httpState; |
dc56a9b1 | 162 | }*/ |
163 | ||
9e008dda | 164 | void |
dc56a9b1 | 165 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
166 | { | |
167 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
168 | deleteThis("HttpStateData::httpStateConnClosed"); | |
f5558c95 | 169 | } |
170 | ||
b8d8561b | 171 | int |
60745f24 | 172 | httpCachable(const HttpRequestMethod& method) |
090089c4 | 173 | { |
090089c4 | 174 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 175 | |
9e008dda | 176 | // TODO: replase to HttpRequestMethod::isCachable() ? |
6eb42cae | 177 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 178 | return 0; |
179 | ||
090089c4 | 180 | /* else cachable */ |
181 | return 1; | |
182 | } | |
183 | ||
dc56a9b1 | 184 | void |
185 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 186 | { |
9cf7de1b | 187 | debugs(11, 4, HERE << serverConnection << ": '" << entry->url() << "'" ); |
62e76326 | 188 | |
12158bdc | 189 | if (entry->store_status == STORE_PENDING) { |
dc56a9b1 | 190 | fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 191 | } |
62e76326 | 192 | |
8d71285d | 193 | serverConnection->close(); |
090089c4 | 194 | } |
195 | ||
f9cece6e | 196 | static void |
197 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
198 | { | |
914b89a2 | 199 | int remove = 0; |
7e3ce7b9 | 200 | int forbidden = 0; |
f9cece6e | 201 | StoreEntry *pe; |
62e76326 | 202 | |
d46a87a8 | 203 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 204 | return; |
205 | ||
f9cece6e | 206 | switch (status) { |
62e76326 | 207 | |
f9cece6e | 208 | case HTTP_OK: |
62e76326 | 209 | |
f9cece6e | 210 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 211 | |
f9cece6e | 212 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 213 | |
f9cece6e | 214 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 215 | |
f9cece6e | 216 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 217 | |
f9cece6e | 218 | case HTTP_GONE: |
62e76326 | 219 | |
7e3ce7b9 | 220 | case HTTP_NOT_FOUND: |
914b89a2 | 221 | remove = 1; |
62e76326 | 222 | |
223 | break; | |
224 | ||
7e3ce7b9 | 225 | case HTTP_FORBIDDEN: |
62e76326 | 226 | |
7e3ce7b9 | 227 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 228 | forbidden = 1; |
229 | ||
230 | break; | |
231 | ||
f9cece6e | 232 | #if WORK_IN_PROGRESS |
62e76326 | 233 | |
c8fd0193 | 234 | case HTTP_UNAUTHORIZED: |
62e76326 | 235 | forbidden = 1; |
236 | ||
237 | break; | |
238 | ||
f9cece6e | 239 | #endif |
62e76326 | 240 | |
f9cece6e | 241 | default: |
7e3ce7b9 | 242 | #if QUESTIONABLE |
62e76326 | 243 | /* |
244 | * Any 2xx response should eject previously cached entities... | |
245 | */ | |
abb929f0 | 246 | |
62e76326 | 247 | if (status >= 200 && status < 300) |
914b89a2 | 248 | remove = 1; |
62e76326 | 249 | |
7e3ce7b9 | 250 | #endif |
62e76326 | 251 | |
252 | break; | |
f9cece6e | 253 | } |
62e76326 | 254 | |
914b89a2 | 255 | if (!remove && !forbidden) |
62e76326 | 256 | return; |
257 | ||
f9cece6e | 258 | assert(e->mem_obj); |
62e76326 | 259 | |
f66a9ef4 | 260 | if (e->mem_obj->request) |
62e76326 | 261 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 262 | else |
62e76326 | 263 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
264 | ||
f66a9ef4 | 265 | if (pe != NULL) { |
62e76326 | 266 | assert(e != pe); |
d9129474 | 267 | #if USE_HTCP |
8dceeee3 | 268 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 269 | #endif |
5f33b71d | 270 | pe->release(); |
0856d155 | 271 | } |
62e76326 | 272 | |
914b89a2 | 273 | /** \par |
7e3ce7b9 | 274 | * Also remove any cached HEAD response in case the object has |
275 | * changed. | |
276 | */ | |
f66a9ef4 | 277 | if (e->mem_obj->request) |
62e76326 | 278 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 279 | else |
62e76326 | 280 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
281 | ||
f66a9ef4 | 282 | if (pe != NULL) { |
62e76326 | 283 | assert(e != pe); |
d9129474 | 284 | #if USE_HTCP |
8dceeee3 | 285 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 286 | #endif |
5f33b71d | 287 | pe->release(); |
7e3ce7b9 | 288 | } |
f9cece6e | 289 | } |
290 | ||
43ae1d95 | 291 | void |
292 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
293 | { | |
43ae1d95 | 294 | if (request->flags.accelerated && reply->surrogate_control) { |
45cca89d | 295 | HttpHdrScTarget *sctusable = httpHdrScGetMergedTarget(reply->surrogate_control, Config.Accel.surrogate_id); |
43ae1d95 | 296 | |
297 | if (sctusable) { | |
298 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
299 | (Config.onoff.surrogate_is_remote | |
300 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
301 | surrogateNoStore = true; | |
5ed72359 | 302 | entry->makePrivate(); |
43ae1d95 | 303 | } |
304 | ||
305 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
306 | * accelerated request or not... | |
45cca89d | 307 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 308 | */ |
309 | if (sctusable->max_age != -1) { | |
310 | if (sctusable->max_age < sctusable->max_stale) | |
311 | reply->expires = reply->date + sctusable->max_age; | |
312 | else | |
313 | reply->expires = reply->date + sctusable->max_stale; | |
314 | ||
315 | /* And update the timestamps */ | |
3900307b | 316 | entry->timestampsSet(); |
43ae1d95 | 317 | } |
318 | ||
319 | /* We ignore cache-control directives as per the Surrogate specification */ | |
320 | ignoreCacheControl = true; | |
321 | ||
322 | httpHdrScTargetDestroy(sctusable); | |
323 | } | |
324 | } | |
43ae1d95 | 325 | } |
326 | ||
924f73bc | 327 | int |
328 | HttpStateData::cacheableReply() | |
c54e9052 | 329 | { |
585ab260 | 330 | HttpReply const *rep = finalReply(); |
528b2c61 | 331 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 332 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 333 | const char *v; |
626096be | 334 | #if USE_HTTP_VIOLATIONS |
62e76326 | 335 | |
38f9c547 | 336 | const refresh_t *R = NULL; |
b6445726 | 337 | |
346be6ad | 338 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 339 | * and then checks if the specified flag is set. The main purpose |
626096be | 340 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 341 | * condition |
342 | */ | |
343 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 344 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
345 | (R && R->flags.flag)) | |
b445957e | 346 | #else |
347 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 348 | #endif |
43ae1d95 | 349 | |
38f9c547 | 350 | if (surrogateNoStore) |
62e76326 | 351 | return 0; |
352 | ||
8466a4af AR |
353 | // RFC 2616: do not cache replies to responses with no-store CC directive |
354 | if (request && request->cache_control && | |
ab745b44 A |
355 | EBIT_TEST(request->cache_control->mask, CC_NO_STORE) && |
356 | !REFRESH_OVERRIDE(ignore_no_store)) | |
8466a4af AR |
357 | return 0; |
358 | ||
924f73bc | 359 | if (!ignoreCacheControl) { |
38f9c547 | 360 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 361 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 362 | return 0; |
363 | } | |
364 | ||
365 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 366 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 367 | return 0; |
368 | } | |
369 | ||
370 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 371 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 372 | return 0; |
373 | } | |
43ae1d95 | 374 | } |
375 | ||
d67acb4e | 376 | if (request->flags.auth || request->flags.auth_sent) { |
62e76326 | 377 | /* |
378 | * Responses to requests with authorization may be cached | |
379 | * only if a Cache-Control: public reply header is present. | |
380 | * RFC 2068, sec 14.9.4 | |
381 | */ | |
382 | ||
38f9c547 | 383 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 384 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 385 | return 0; |
386 | } | |
a6dfe2d9 | 387 | } |
62e76326 | 388 | |
c68e9c6b | 389 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
390 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 391 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 392 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 393 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 394 | s.clean(); |
62e76326 | 395 | |
38f9c547 | 396 | if (no_cache) { |
b6445726 | 397 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 398 | return 0; |
399 | } | |
c68e9c6b | 400 | } |
62e76326 | 401 | |
c68e9c6b | 402 | /* |
403 | * The "multipart/x-mixed-replace" content type is used for | |
404 | * continuous push replies. These are generally dynamic and | |
405 | * probably should not be cachable | |
406 | */ | |
a9925b40 | 407 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 408 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
409 | return 0; | |
410 | ||
585ab260 | 411 | switch (rep->sline.status) { |
62e76326 | 412 | /* Responses that are cacheable */ |
413 | ||
19a04dac | 414 | case HTTP_OK: |
62e76326 | 415 | |
19a04dac | 416 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 417 | |
19a04dac | 418 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 419 | |
19a04dac | 420 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 421 | |
19a04dac | 422 | case HTTP_GONE: |
62e76326 | 423 | /* |
424 | * Don't cache objects that need to be refreshed on next request, | |
425 | * unless we know how to refresh it. | |
426 | */ | |
427 | ||
3d8b6ba4 | 428 | if (!refreshIsCachable(entry) && !REFRESH_OVERRIDE(store_stale)) { |
bf8fe701 | 429 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 430 | return 0; |
ca34dacd | 431 | } else |
62e76326 | 432 | return 1; |
433 | ||
62e76326 | 434 | /* NOTREACHED */ |
435 | break; | |
436 | ||
437 | /* Responses that only are cacheable if the server says so */ | |
438 | ||
19a04dac | 439 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 440 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 441 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 442 | return 1; |
443 | else | |
444 | return 0; | |
445 | ||
446 | /* NOTREACHED */ | |
447 | break; | |
448 | ||
449 | /* Errors can be negatively cached */ | |
450 | ||
19a04dac | 451 | case HTTP_NO_CONTENT: |
62e76326 | 452 | |
19a04dac | 453 | case HTTP_USE_PROXY: |
62e76326 | 454 | |
19a04dac | 455 | case HTTP_BAD_REQUEST: |
62e76326 | 456 | |
19a04dac | 457 | case HTTP_FORBIDDEN: |
62e76326 | 458 | |
19a04dac | 459 | case HTTP_NOT_FOUND: |
62e76326 | 460 | |
19a04dac | 461 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 462 | |
19a04dac | 463 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 464 | |
19a04dac | 465 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 466 | |
19a04dac | 467 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 468 | |
19a04dac | 469 | case HTTP_BAD_GATEWAY: |
62e76326 | 470 | |
19a04dac | 471 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 472 | |
19a04dac | 473 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 474 | return -1; |
475 | ||
476 | /* NOTREACHED */ | |
477 | break; | |
478 | ||
479 | /* Some responses can never be cached */ | |
480 | ||
0cdcddb9 | 481 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 482 | |
19a04dac | 483 | case HTTP_SEE_OTHER: |
62e76326 | 484 | |
19a04dac | 485 | case HTTP_NOT_MODIFIED: |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_UNAUTHORIZED: |
62e76326 | 488 | |
19a04dac | 489 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 490 | |
0cdcddb9 | 491 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 492 | |
493 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 494 | |
495 | case HTTP_PAYMENT_REQUIRED: | |
496 | case HTTP_NOT_ACCEPTABLE: | |
497 | case HTTP_REQUEST_TIMEOUT: | |
498 | case HTTP_CONFLICT: | |
499 | case HTTP_LENGTH_REQUIRED: | |
500 | case HTTP_PRECONDITION_FAILED: | |
501 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
502 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
503 | case HTTP_UNPROCESSABLE_ENTITY: | |
504 | case HTTP_LOCKED: | |
505 | case HTTP_FAILED_DEPENDENCY: | |
506 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 507 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
508 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 509 | |
62e76326 | 510 | return 0; |
511 | ||
41217979 AJ |
512 | default: |
513 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
514 | debugs (11, 3, HERE << "Unknown HTTP status code " << rep->sline.status << ". Not cacheable."); | |
62e76326 | 515 | |
516 | return 0; | |
517 | ||
518 | /* NOTREACHED */ | |
519 | break; | |
c54e9052 | 520 | } |
62e76326 | 521 | |
79d39a72 | 522 | /* NOTREACHED */ |
c54e9052 | 523 | } |
090089c4 | 524 | |
f66a9ef4 | 525 | /* |
9e008dda | 526 | * For Vary, store the relevant request headers as |
f66a9ef4 | 527 | * virtual headers in the reply |
528 | * Returns false if the variance cannot be stored | |
529 | */ | |
530 | const char * | |
190154cf | 531 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 532 | { |
30abd221 | 533 | String vary, hdr; |
f66a9ef4 | 534 | const char *pos = NULL; |
535 | const char *item; | |
536 | const char *value; | |
537 | int ilen; | |
30abd221 | 538 | static String vstr; |
f66a9ef4 | 539 | |
30abd221 | 540 | vstr.clean(); |
a9925b40 | 541 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 542 | |
f66a9ef4 | 543 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 544 | char *name = (char *)xmalloc(ilen + 1); |
545 | xstrncpy(name, item, ilen + 1); | |
546 | Tolower(name); | |
9776e3cc | 547 | |
548 | if (strcmp(name, "*") == 0) { | |
549 | /* Can not handle "Vary: *" withtout ETag support */ | |
550 | safe_free(name); | |
30abd221 | 551 | vstr.clean(); |
9776e3cc | 552 | break; |
553 | } | |
554 | ||
62e76326 | 555 | strListAdd(&vstr, name, ','); |
a9925b40 | 556 | hdr = request->header.getByName(name); |
62e76326 | 557 | safe_free(name); |
d53b3f6d | 558 | value = hdr.termedBuf(); |
62e76326 | 559 | |
560 | if (value) { | |
561 | value = rfc1738_escape_part(value); | |
562 | vstr.append("=\"", 2); | |
563 | vstr.append(value); | |
564 | vstr.append("\"", 1); | |
565 | } | |
566 | ||
30abd221 | 567 | hdr.clean(); |
f66a9ef4 | 568 | } |
62e76326 | 569 | |
30abd221 | 570 | vary.clean(); |
f66a9ef4 | 571 | #if X_ACCELERATOR_VARY |
62e76326 | 572 | |
aa38be4a | 573 | pos = NULL; |
a9925b40 | 574 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 575 | |
f66a9ef4 | 576 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 577 | char *name = (char *)xmalloc(ilen + 1); |
578 | xstrncpy(name, item, ilen + 1); | |
579 | Tolower(name); | |
580 | strListAdd(&vstr, name, ','); | |
a9925b40 | 581 | hdr = request->header.getByName(name); |
62e76326 | 582 | safe_free(name); |
d53b3f6d | 583 | value = hdr.termedBuf(); |
62e76326 | 584 | |
585 | if (value) { | |
586 | value = rfc1738_escape_part(value); | |
587 | vstr.append("=\"", 2); | |
588 | vstr.append(value); | |
589 | vstr.append("\"", 1); | |
590 | } | |
591 | ||
30abd221 | 592 | hdr.clean(); |
f66a9ef4 | 593 | } |
62e76326 | 594 | |
30abd221 | 595 | vary.clean(); |
f66a9ef4 | 596 | #endif |
62e76326 | 597 | |
d53b3f6d FC |
598 | debugs(11, 3, "httpMakeVaryMark: " << vstr); |
599 | return vstr.termedBuf(); | |
f66a9ef4 | 600 | } |
601 | ||
2afaba07 | 602 | void |
603 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
604 | { | |
605 | if (flags.keepalive) | |
606 | if (_peer) | |
607 | _peer->stats.n_keepalives_sent++; | |
608 | ||
609 | if (reply->keep_alive) { | |
610 | if (_peer) | |
611 | _peer->stats.n_keepalives_recv++; | |
612 | ||
af6a12ee AJ |
613 | if (Config.onoff.detect_broken_server_pconns |
614 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
bf8fe701 | 615 | debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
616 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); | |
2afaba07 | 617 | flags.keepalive_broken = 1; |
618 | } | |
619 | } | |
620 | } | |
621 | ||
622 | void | |
623 | HttpStateData::checkDateSkew(HttpReply *reply) | |
624 | { | |
625 | if (reply->date > -1 && !_peer) { | |
626 | int skew = abs((int)(reply->date - squid_curtime)); | |
627 | ||
628 | if (skew > 86400) | |
cc192b50 | 629 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 630 | } |
631 | } | |
632 | ||
073ba374 | 633 | /** |
4eb368f9 | 634 | * This creates the error page itself.. its likely |
635 | * that the forward ported reply header max size patch | |
636 | * generates non http conformant error pages - in which | |
637 | * case the errors where should be 'BAD_GATEWAY' etc | |
638 | */ | |
b8d8561b | 639 | void |
2afaba07 | 640 | HttpStateData::processReplyHeader() |
f5558c95 | 641 | { |
073ba374 | 642 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 AJ |
643 | |
644 | /* NP: all exit points to this function MUST call ctx_exit(ctx) */ | |
82384411 | 645 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
859f1666 | 646 | |
bf8fe701 | 647 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 648 | |
1a98175f | 649 | assert(!flags.headers_parsed); |
62e76326 | 650 | |
859f1666 AJ |
651 | if (!readBuf->hasContent()) { |
652 | ctx_exit(ctx); | |
b73a07d6 | 653 | return; |
859f1666 | 654 | } |
b73a07d6 | 655 | |
2afaba07 | 656 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 657 | |
585ab260 | 658 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 659 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 660 | |
e77d7ef0 | 661 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0 && strncmp(readBuf->content(), "ICY", 3) != 0) { |
9e008dda AJ |
662 | MemBuf *mb; |
663 | HttpReply *tmprep = new HttpReply; | |
11992b6f | 664 | tmprep->setHeaders(HTTP_OK, "Gatewaying", NULL, -1, -1, -1); |
9e008dda AJ |
665 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); |
666 | mb = tmprep->pack(); | |
667 | newrep->parse(mb, eof, &error); | |
ddbe383d | 668 | delete mb; |
9e008dda AJ |
669 | delete tmprep; |
670 | } else { | |
671 | if (!parsed && error > 0) { // unrecoverable parsing error | |
672 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
673 | flags.headers_parsed = 1; | |
871c031f | 674 | newrep->sline.version = HttpVersion(1,1); |
9e008dda AJ |
675 | newrep->sline.status = error; |
676 | HttpReply *vrep = setVirginReply(newrep); | |
677 | entry->replaceHttpReply(vrep); | |
678 | ctx_exit(ctx); | |
679 | return; | |
680 | } | |
681 | ||
682 | if (!parsed) { // need more data | |
683 | assert(!error); | |
684 | assert(!eof); | |
685 | delete newrep; | |
686 | ctx_exit(ctx); | |
687 | return; | |
688 | } | |
689 | ||
690 | debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------"); | |
691 | ||
692 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
693 | readBuf->consume(header_bytes_read); | |
f5558c95 | 694 | } |
62e76326 | 695 | |
c679653d | 696 | newrep->removeStaleWarnings(); |
3d9e71e6 | 697 | |
0c3d3f65 | 698 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->sline.status >= 100 && newrep->sline.status < 200) { |
655daa06 | 699 | handle1xx(newrep); |
3d9e71e6 | 700 | ctx_exit(ctx); |
3d9e71e6 AJ |
701 | return; |
702 | } | |
703 | ||
af0bb8e5 | 704 | flags.chunked = 0; |
0c3d3f65 | 705 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->header.chunked()) { |
9e008dda AJ |
706 | flags.chunked = 1; |
707 | httpChunkDecoder = new ChunkedCodingParser; | |
af0bb8e5 | 708 | } |
709 | ||
9e008dda | 710 | if (!peerSupportsConnectionPinning()) |
e24f13cd | 711 | request->flags.connection_auth_disabled = 1; |
d67acb4e | 712 | |
585ab260 | 713 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 714 | flags.headers_parsed = 1; |
715 | ||
585ab260 | 716 | keepaliveAccounting(vrep); |
47ac2ebe | 717 | |
585ab260 | 718 | checkDateSkew(vrep); |
47ac2ebe | 719 | |
585ab260 | 720 | processSurrogateControl (vrep); |
528b2c61 | 721 | |
073ba374 | 722 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 723 | * Parse the header and remove all referenced headers |
724 | */ | |
725 | ||
e24f13cd | 726 | request->hier.peer_reply_status = newrep->sline.status; |
3ff65596 | 727 | |
2afaba07 | 728 | ctx_exit(ctx); |
729 | } | |
730 | ||
655daa06 AR |
731 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
732 | void | |
733 | HttpStateData::handle1xx(HttpReply *reply) | |
734 | { | |
735 | HttpMsgPointerT<HttpReply> msg(reply); // will destroy reply if unused | |
736 | ||
737 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
738 | Must(!flags.handling1xx); | |
739 | flags.handling1xx = true; | |
740 | ||
e24f13cd | 741 | if (!request->canHandle1xx()) { |
655daa06 AR |
742 | debugs(11, 2, HERE << "ignoring client-unsupported 1xx"); |
743 | proceedAfter1xx(); | |
744 | return; | |
745 | } | |
746 | ||
747 | #if USE_HTTP_VIOLATIONS | |
748 | // check whether the 1xx response forwarding is allowed by squid.conf | |
749 | if (Config.accessList.reply) { | |
e11513e1 | 750 | ACLFilledChecklist ch(Config.accessList.reply, originalRequest(), NULL); |
655daa06 AR |
751 | ch.reply = HTTPMSGLOCK(reply); |
752 | if (!ch.fastCheck()) { // TODO: support slow lookups? | |
753 | debugs(11, 3, HERE << "ignoring denied 1xx"); | |
754 | proceedAfter1xx(); | |
755 | return; | |
de48b288 | 756 | } |
655daa06 AR |
757 | } |
758 | #endif // USE_HTTP_VIOLATIONS | |
759 | ||
760 | debugs(11, 2, HERE << "forwarding 1xx to client"); | |
761 | ||
762 | // the Sink will use this to call us back after writing 1xx to the client | |
763 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
764 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 765 | HttpStateData::proceedAfter1xx); |
e24f13cd | 766 | CallJobHere1(11, 4, request->clientConnectionManager, ConnStateData, |
655daa06 AR |
767 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); |
768 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
769 | // will terminate due to an aborted store entry or another similar error. | |
770 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
771 | // for similar reasons without a 1xx response. | |
772 | } | |
773 | ||
774 | /// restores state and resumes processing after 1xx is ignored or forwarded | |
775 | void | |
776 | HttpStateData::proceedAfter1xx() | |
777 | { | |
778 | Must(flags.handling1xx); | |
779 | ||
780 | debugs(11, 2, HERE << "consuming " << header_bytes_read << | |
de48b288 | 781 | " header and " << reply_bytes_read << " body bytes read after 1xx"); |
655daa06 AR |
782 | header_bytes_read = 0; |
783 | reply_bytes_read = 0; | |
784 | ||
785 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); | |
786 | } | |
787 | ||
788 | ||
d67acb4e AJ |
789 | /** |
790 | * returns true if the peer can support connection pinning | |
791 | */ | |
792 | bool HttpStateData::peerSupportsConnectionPinning() const | |
793 | { | |
794 | const HttpReply *rep = entry->mem_obj->getReply(); | |
795 | const HttpHeader *hdr = &rep->header; | |
796 | bool rc; | |
797 | String header; | |
798 | ||
799 | if (!_peer) | |
9e008dda AJ |
800 | return true; |
801 | ||
802 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
803 | connections) return false |
804 | */ | |
805 | if (!_peer->connection_auth) | |
9e008dda | 806 | return false; |
d67acb4e | 807 | |
9e008dda | 808 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
809 | is not unauthorized, so the related connection can be pinned |
810 | */ | |
811 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
812 | return true; |
813 | ||
814 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
815 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
816 | connections |
817 | */ | |
818 | if (_peer->connection_auth == 1) | |
9e008dda | 819 | return true; |
d67acb4e | 820 | |
9e008dda AJ |
821 | /*At this point peer has configured with "connection-auth=auto" |
822 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
823 | to allow pinned connections or not |
824 | */ | |
825 | ||
9e008dda | 826 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
827 | pinning (squid 2.6 behaviour) |
828 | */ | |
829 | if (_peer->options.originserver) | |
9e008dda | 830 | return true; |
d67acb4e AJ |
831 | |
832 | /*if the connections it is already pinned it is OK*/ | |
833 | if (request->flags.pinned) | |
9e008dda AJ |
834 | return true; |
835 | ||
836 | /*Allow pinned connections only if the Proxy-support header exists in | |
837 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
838 | which means that the peer supports connection pinning. |
839 | */ | |
840 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 841 | return false; |
d67acb4e AJ |
842 | |
843 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
844 | /* XXX This ought to be done in a case-insensitive manner */ | |
d53b3f6d | 845 | rc = (strstr(header.termedBuf(), "Session-Based-Authentication") != NULL); |
d67acb4e AJ |
846 | |
847 | return rc; | |
848 | } | |
849 | ||
5f8252d2 | 850 | // Called when we parsed (and possibly adapted) the headers but |
851 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 852 | void |
853 | HttpStateData::haveParsedReplyHeaders() | |
854 | { | |
c1520b67 AJ |
855 | ServerStateData::haveParsedReplyHeaders(); |
856 | ||
2afaba07 | 857 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 858 | HttpReply *rep = finalReply(); |
2afaba07 | 859 | |
585ab260 | 860 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
861 | rep->content_range) | |
862 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 863 | |
3900307b | 864 | entry->timestampsSet(); |
62e76326 | 865 | |
9bc73deb | 866 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 867 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 868 | |
9bc73deb | 869 | if (neighbors_do_private_keys) |
585ab260 | 870 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 871 | |
585ab260 | 872 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 873 | #if X_ACCELERATOR_VARY |
585ab260 | 874 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 875 | #endif |
4b44c907 | 876 | ) { |
e24f13cd | 877 | const char *vary = httpMakeVaryMark(request, rep); |
4b44c907 | 878 | |
879 | if (!vary) { | |
5ed72359 | 880 | entry->makePrivate(); |
d7d3253b AJ |
881 | if (!fwd->reforwardableStatus(rep->sline.status)) |
882 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); | |
4b44c907 | 883 | goto no_cache; |
62e76326 | 884 | } |
885 | ||
4b44c907 | 886 | entry->mem_obj->vary_headers = xstrdup(vary); |
887 | } | |
888 | ||
2afaba07 | 889 | /* |
890 | * If its not a reply that we will re-forward, then | |
891 | * allow the client to get it. | |
892 | */ | |
585ab260 | 893 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 894 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
895 | ||
4b44c907 | 896 | switch (cacheableReply()) { |
897 | ||
898 | case 1: | |
5ed72359 | 899 | entry->makePublic(); |
62e76326 | 900 | break; |
901 | ||
9bc73deb | 902 | case 0: |
5ed72359 | 903 | entry->makePrivate(); |
62e76326 | 904 | break; |
905 | ||
9bc73deb | 906 | case -1: |
4b44c907 | 907 | |
626096be | 908 | #if USE_HTTP_VIOLATIONS |
4b44c907 | 909 | if (Config.negativeTtl > 0) |
5ed72359 | 910 | entry->cacheNegatively(); |
4b44c907 | 911 | else |
ac9cc053 | 912 | #endif |
5ed72359 | 913 | entry->makePrivate(); |
4b44c907 | 914 | |
62e76326 | 915 | break; |
916 | ||
9bc73deb | 917 | default: |
62e76326 | 918 | assert(0); |
4b44c907 | 919 | |
62e76326 | 920 | break; |
9bc73deb | 921 | } |
62e76326 | 922 | |
4b44c907 | 923 | no_cache: |
924 | ||
585ab260 | 925 | if (!ignoreCacheControl && rep->cache_control) { |
7948b784 | 926 | if (EBIT_TEST(rep->cache_control->mask, CC_PROXY_REVALIDATE) || |
477438e1 A |
927 | EBIT_TEST(rep->cache_control->mask, CC_MUST_REVALIDATE) || |
928 | EBIT_TEST(rep->cache_control->mask, CC_S_MAXAGE)) | |
62e76326 | 929 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 930 | } |
62e76326 | 931 | |
c3609322 | 932 | #if HEADERS_LOG |
585ab260 | 933 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 934 | |
c3609322 | 935 | #endif |
5f8252d2 | 936 | |
937 | ctx_exit(ctx); | |
f5558c95 | 938 | } |
939 | ||
528b2c61 | 940 | HttpStateData::ConnectionStatus |
941 | HttpStateData::statusIfComplete() const | |
603a02fd | 942 | { |
585ab260 | 943 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
944 | /** \par |
945 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 946 | |
2afaba07 | 947 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 948 | return COMPLETE_NONPERSISTENT_MSG; |
949 | ||
073ba374 AJ |
950 | /** \par |
951 | * If we didn't send a keep-alive request header, then this | |
978e455f | 952 | * can not be a persistent connection. |
953 | */ | |
528b2c61 | 954 | if (!flags.keepalive) |
62e76326 | 955 | return COMPLETE_NONPERSISTENT_MSG; |
956 | ||
073ba374 | 957 | /** \par |
72b63f06 | 958 | * If we haven't sent the whole request then this can not be a persistent |
959 | * connection. | |
960 | */ | |
961 | if (!flags.request_sent) { | |
e24f13cd | 962 | debugs(11, 2, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 963 | return COMPLETE_NONPERSISTENT_MSG; |
964 | } | |
965 | ||
073ba374 | 966 | /** \par |
9f5a2895 | 967 | * What does the reply have to say about keep-alive? |
968 | */ | |
073ba374 AJ |
969 | /** |
970 | \bug XXX BUG? | |
b6a2f15e | 971 | * If the origin server (HTTP/1.0) does not send a keep-alive |
972 | * header, but keeps the connection open anyway, what happens? | |
973 | * We'll return here and http.c waits for an EOF before changing | |
974 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
975 | * and an error status code, and we might have to wait until | |
976 | * the server times out the socket. | |
977 | */ | |
2afaba07 | 978 | if (!rep->keep_alive) |
528b2c61 | 979 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 980 | |
528b2c61 | 981 | return COMPLETE_PERSISTENT_MSG; |
982 | } | |
983 | ||
984 | HttpStateData::ConnectionStatus | |
985 | HttpStateData::persistentConnStatus() const | |
986 | { | |
9cf7de1b | 987 | debugs(11, 3, HERE << serverConnection << " eof=" << eof); |
839291ac AJ |
988 | if (eof) // already reached EOF |
989 | return COMPLETE_NONPERSISTENT_MSG; | |
990 | ||
505c2f28 AR |
991 | /* If server fd is closing (but we have not been notified yet), stop Comm |
992 | I/O to avoid assertions. TODO: Change Comm API to handle callers that | |
993 | want more I/O after async closing (usually initiated by others). */ | |
994 | // XXX: add canReceive or s/canSend/canTalkToServer/ | |
e7cea0ed | 995 | if (!Comm::IsConnOpen(serverConnection)) |
505c2f28 AR |
996 | return COMPLETE_NONPERSISTENT_MSG; |
997 | ||
9035d1d5 AJ |
998 | /** \par |
999 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1000 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 1001 | * decide if we can be persistant |
af0bb8e5 | 1002 | */ |
839291ac | 1003 | if (lastChunk && flags.chunked) |
9e008dda | 1004 | return statusIfComplete(); |
af0bb8e5 | 1005 | |
718d84bf AR |
1006 | const HttpReply *vrep = virginReply(); |
1007 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
1008 | ||
47f6e231 | 1009 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1010 | |
bf8fe701 | 1011 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1012 | |
35282fbf | 1013 | /* If the body size is unknown we must wait for EOF */ |
1014 | if (clen < 0) | |
62e76326 | 1015 | return INCOMPLETE_MSG; |
1016 | ||
9035d1d5 AJ |
1017 | /** \par |
1018 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1019 | if (clen > 0) { |
1020 | // old technique: | |
585ab260 | 1021 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 1022 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 1023 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 1024 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 1025 | |
585ab260 | 1026 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 1027 | return INCOMPLETE_MSG; |
821beb5e AR |
1028 | |
1029 | if (body_bytes_truncated > 0) // already read more than needed | |
1030 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns | |
5f8252d2 | 1031 | } |
62e76326 | 1032 | |
9035d1d5 AJ |
1033 | /** \par |
1034 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1035 | return statusIfComplete(); |
603a02fd | 1036 | } |
090089c4 | 1037 | |
2afaba07 | 1038 | /* |
1039 | * This is the callback after some data has been read from the network | |
1040 | */ | |
dc56a9b1 | 1041 | /* |
e5ee81f0 | 1042 | void |
d53b3f6d | 1043 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) |
c4b7a5a9 | 1044 | { |
1045 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
8d71285d | 1046 | assert (fd == httpState->serverConnection->fd); |
d53b3f6d | 1047 | // assert(buf == readBuf->content()); |
1d5161bd | 1048 | PROF_start(HttpStateData_readReply); |
e6edd8df | 1049 | httpState->readReply(len, flag, xerrno); |
1d5161bd | 1050 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1051 | } |
dc56a9b1 | 1052 | */ |
073ba374 | 1053 | |
2afdbf48 | 1054 | /* XXX this function is too long! */ |
c4b7a5a9 | 1055 | void |
e6edd8df | 1056 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1057 | { |
30a4f2a8 | 1058 | int bin; |
090089c4 | 1059 | int clen; |
dc56a9b1 | 1060 | int len = io.size; |
c4b7a5a9 | 1061 | |
dc56a9b1 | 1062 | flags.do_next_read = 0; |
9e008dda | 1063 | |
3e4bebf8 | 1064 | debugs(11, 5, HERE << io.conn << ": len " << len << "."); |
62e76326 | 1065 | |
7a7cc03f | 1066 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1067 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1068 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1069 | return; |
1070 | } | |
1071 | ||
e92e4e44 | 1072 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
a171b5f0 | 1073 | // TODO: should we call abortTransaction() here? |
62e76326 | 1074 | return; |
e92e4e44 | 1075 | } |
c4b7a5a9 | 1076 | |
fdf55365 | 1077 | // handle I/O errors |
dc56a9b1 | 1078 | if (io.flag != COMM_OK || len < 0) { |
3e4bebf8 | 1079 | debugs(11, 2, HERE << io.conn << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1080 | |
dc56a9b1 | 1081 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1082 | flags.do_next_read = 1; |
1083 | } else { | |
1084 | ErrorState *err; | |
1085 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
dc56a9b1 | 1086 | err->xerrno = io.xerrno; |
fdf55365 | 1087 | fwd->fail(err); |
1088 | flags.do_next_read = 0; | |
8d71285d | 1089 | serverConnection->close(); |
fdf55365 | 1090 | } |
1091 | ||
1092 | return; | |
1093 | } | |
1094 | ||
7a7cc03f | 1095 | // update I/O stats |
fdf55365 | 1096 | if (len > 0) { |
2afaba07 | 1097 | readBuf->appended(len); |
5f8252d2 | 1098 | reply_bytes_read += len; |
9a0a18de | 1099 | #if USE_DELAY_POOLS |
2afaba07 | 1100 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); |
62e76326 | 1101 | delayId.bytesIn(len); |
447e176b | 1102 | #endif |
62e76326 | 1103 | |
1104 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1105 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1106 | IOStats.Http.reads++; |
1107 | ||
1108 | for (clen = len - 1, bin = 0; clen; bin++) | |
1109 | clen >>= 1; | |
1110 | ||
1111 | IOStats.Http.read_hist[bin]++; | |
3ff65596 AR |
1112 | |
1113 | // update peer response time stats (%<pt) | |
e24f13cd CT |
1114 | const timeval &sent = request->hier.peer_http_request_sent; |
1115 | request->hier.peer_response_time = | |
3ff65596 | 1116 | sent.tv_sec ? tvSubMsec(sent, current_time) : -1; |
30a4f2a8 | 1117 | } |
62e76326 | 1118 | |
073ba374 AJ |
1119 | /** \par |
1120 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1121 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1122 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1123 | * not allowing connection reuse in the first place. | |
1124 | */ | |
1125 | #if DONT_DO_THIS | |
8d71285d | 1126 | if (!flags.headers_parsed && len > 0 && fd_table[serverConnection->fd].uses > 1) { |
5fa061b8 | 1127 | /* Skip whitespace between replies */ |
62e76326 | 1128 | |
d53b3f6d | 1129 | while (len > 0 && xisspace(*buf)) |
41d00cd3 | 1130 | memmove(buf, buf + 1, len--); |
62e76326 | 1131 | |
1132 | if (len == 0) { | |
1133 | /* Continue to read... */ | |
21b92762 | 1134 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1135 | flags.do_next_read = 1; |
5f8252d2 | 1136 | maybeReadVirginBody(); |
62e76326 | 1137 | return; |
1138 | } | |
5ede6c8f | 1139 | } |
62e76326 | 1140 | |
5fa061b8 | 1141 | #endif |
1142 | ||
ba82c452 | 1143 | if (len == 0) { // reached EOF? |
62e76326 | 1144 | eof = 1; |
f61f0107 | 1145 | flags.do_next_read = 0; |
da6c8415 | 1146 | |
b73a07d6 | 1147 | /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n |
da6c8415 | 1148 | * Ensure here that we have at minimum two \r\n when EOF is seen. |
b73a07d6 | 1149 | * TODO: Add eof parameter to headersEnd() and move this hack there. |
da6c8415 | 1150 | */ |
b73a07d6 | 1151 | if (readBuf->contentSize() && !flags.headers_parsed) { |
da6c8415 AJ |
1152 | /* |
1153 | * Yes Henrik, there is a point to doing this. When we | |
1154 | * called httpProcessReplyHeader() before, we didn't find | |
1155 | * the end of headers, but now we are definately at EOF, so | |
1156 | * we want to process the reply headers. | |
1157 | */ | |
1158 | /* Fake an "end-of-headers" to work around such broken servers */ | |
1159 | readBuf->append("\r\n", 2); | |
da6c8415 | 1160 | } |
ba82c452 | 1161 | } |
62e76326 | 1162 | |
655daa06 AR |
1163 | processReply(); |
1164 | } | |
1165 | ||
1166 | /// processes the already read and buffered response data, possibly after | |
1167 | /// waiting for asynchronous 1xx control message processing | |
1168 | void | |
de48b288 A |
1169 | HttpStateData::processReply() |
1170 | { | |
655daa06 AR |
1171 | |
1172 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1173 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1174 | flags.handling1xx = false; | |
1175 | Must(!flags.headers_parsed); | |
1176 | } | |
1177 | ||
ba82c452 | 1178 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1179 | PROF_start(HttpStateData_processReplyHeader); | |
1180 | processReplyHeader(); | |
1181 | PROF_stop(HttpStateData_processReplyHeader); | |
1182 | ||
1183 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1184 | return; // TODO: send errors to ICAP | |
1185 | ||
585ab260 | 1186 | adaptOrFinalizeReply(); |
ba82c452 | 1187 | } |
1188 | ||
1189 | // kick more reads if needed and/or process the response body, if any | |
1190 | PROF_start(HttpStateData_processReplyBody); | |
1191 | processReplyBody(); // may call serverComplete() | |
1192 | PROF_stop(HttpStateData_processReplyBody); | |
1193 | } | |
1194 | ||
073ba374 AJ |
1195 | /** |
1196 | \retval true if we can continue with processing the body or doing ICAP. | |
1197 | */ | |
ba82c452 | 1198 | bool |
1199 | HttpStateData::continueAfterParsingHeader() | |
1200 | { | |
655daa06 AR |
1201 | if (flags.handling1xx) { |
1202 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1203 | Must(!flags.headers_parsed); | |
1204 | return false; | |
1205 | } | |
1206 | ||
073ba374 | 1207 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1208 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1209 | flags.do_next_read = 1; | |
073ba374 AJ |
1210 | /** \retval false If we have not finished parsing the headers and may get more data. |
1211 | * Schedules more reads to retrieve the missing data. | |
1212 | */ | |
ba82c452 | 1213 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1214 | return false; |
ba82c452 | 1215 | } |
1216 | ||
073ba374 | 1217 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1218 | |
1219 | err_type error = ERR_NONE; | |
1220 | ||
1221 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1222 | // check for header parsing errors | |
585ab260 | 1223 | if (HttpReply *vrep = virginReply()) { |
1224 | const http_status s = vrep->sline.status; | |
1225 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1226 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
e24f13cd | 1227 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1228 | error = ERR_INVALID_RESP; |
e1381638 AJ |
1229 | } else if (s == HTTP_HEADER_TOO_LARGE) { |
1230 | fwd->dontRetry(true); | |
1231 | error = ERR_TOO_BIG; | |
1232 | } else { | |
1233 | return true; // done parsing, got reply, and no error | |
1234 | } | |
ba82c452 | 1235 | } else { |
1236 | // parsed headers but got no reply | |
e24f13cd | 1237 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); |
ba82c452 | 1238 | error = ERR_INVALID_RESP; |
62e76326 | 1239 | } |
090089c4 | 1240 | } else { |
ba82c452 | 1241 | assert(eof); |
9121eba6 AJ |
1242 | if (readBuf->hasContent()) { |
1243 | error = ERR_INVALID_RESP; | |
e24f13cd | 1244 | 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 |
1245 | } else { |
1246 | error = ERR_ZERO_SIZE_OBJECT; | |
e24f13cd CT |
1247 | debugs(11, (request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << |
1248 | entry->url() << " AKA " << request->GetHost() << request->urlpath.termedBuf() ); | |
9121eba6 | 1249 | } |
2afaba07 | 1250 | } |
ba82c452 | 1251 | |
1252 | assert(error != ERR_NONE); | |
1253 | entry->reset(); | |
1254 | fwd->fail(errorCon(error, HTTP_BAD_GATEWAY, fwd->request)); | |
1255 | flags.do_next_read = 0; | |
8d71285d | 1256 | serverConnection->close(); |
ba82c452 | 1257 | return false; // quit on error |
2afaba07 | 1258 | } |
1259 | ||
821beb5e AR |
1260 | /** truncate what we read if we read too much so that writeReplyBody() |
1261 | writes no more than what we should have read */ | |
1262 | void | |
1263 | HttpStateData::truncateVirginBody() | |
1264 | { | |
1265 | assert(flags.headers_parsed); | |
1266 | ||
1267 | HttpReply *vrep = virginReply(); | |
1268 | int64_t clen = -1; | |
1269 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1270 | return; // no body or a body of unknown size, including chunked | |
1271 | ||
1272 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; | |
e1381638 | 1273 | if (body_bytes_read - body_bytes_truncated <= clen) |
821beb5e AR |
1274 | return; // we did not read too much or already took care of the extras |
1275 | ||
1276 | if (const int64_t extras = body_bytes_read - body_bytes_truncated - clen) { | |
1277 | // server sent more that the advertised content length | |
e1381638 AJ |
1278 | debugs(11,5, HERE << "body_bytes_read=" << body_bytes_read << |
1279 | " clen=" << clen << '/' << vrep->content_length << | |
1280 | " body_bytes_truncated=" << body_bytes_truncated << '+' << extras); | |
821beb5e AR |
1281 | |
1282 | readBuf->truncate(extras); | |
1283 | body_bytes_truncated += extras; | |
1284 | } | |
1285 | } | |
1286 | ||
073ba374 | 1287 | /** |
2afaba07 | 1288 | * Call this when there is data from the origin server |
1289 | * which should be sent to either StoreEntry, or to ICAP... | |
1290 | */ | |
1291 | void | |
5f8252d2 | 1292 | HttpStateData::writeReplyBody() |
2afaba07 | 1293 | { |
821beb5e | 1294 | truncateVirginBody(); // if needed |
5f8252d2 | 1295 | const char *data = readBuf->content(); |
1296 | int len = readBuf->contentSize(); | |
bc81cb2b | 1297 | addVirginReplyBody(data, len); |
5f8252d2 | 1298 | readBuf->consume(len); |
af0bb8e5 | 1299 | } |
fc68f6b1 | 1300 | |
af0bb8e5 | 1301 | bool |
1302 | HttpStateData::decodeAndWriteReplyBody() | |
1303 | { | |
1304 | const char *data = NULL; | |
1305 | int len; | |
e053c141 | 1306 | bool wasThereAnException = false; |
af0bb8e5 | 1307 | assert(flags.chunked); |
1308 | assert(httpChunkDecoder); | |
1309 | SQUID_ENTER_THROWING_CODE(); | |
1310 | MemBuf decodedData; | |
1311 | decodedData.init(); | |
e053c141 | 1312 | const bool doneParsing = httpChunkDecoder->parse(readBuf,&decodedData); |
af0bb8e5 | 1313 | len = decodedData.contentSize(); |
1314 | data=decodedData.content(); | |
1315 | addVirginReplyBody(data, len); | |
e053c141 | 1316 | if (doneParsing) { |
839291ac AJ |
1317 | lastChunk = 1; |
1318 | flags.do_next_read = 0; | |
af0bb8e5 | 1319 | } |
e053c141 FC |
1320 | SQUID_EXIT_THROWING_CODE(wasThereAnException); |
1321 | return wasThereAnException; | |
e6ccf245 | 1322 | } |
1323 | ||
073ba374 | 1324 | /** |
2afaba07 | 1325 | * processReplyBody has two purposes: |
1326 | * 1 - take the reply body data, if any, and put it into either | |
1327 | * the StoreEntry, or give it over to ICAP. | |
1328 | * 2 - see if we made it to the end of the response (persistent | |
1329 | * connections and such) | |
1330 | */ | |
e6ccf245 | 1331 | void |
2afaba07 | 1332 | HttpStateData::processReplyBody() |
e6ccf245 | 1333 | { |
b7ac5457 | 1334 | Ip::Address client_addr; |
d67acb4e | 1335 | bool ispinned = false; |
fc68f6b1 | 1336 | |
1a98175f | 1337 | if (!flags.headers_parsed) { |
f61f0107 | 1338 | flags.do_next_read = 1; |
5f8252d2 | 1339 | maybeReadVirginBody(); |
62e76326 | 1340 | return; |
528b2c61 | 1341 | } |
62e76326 | 1342 | |
a83c6ed6 | 1343 | #if USE_ADAPTATION |
c30ac6ea | 1344 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1345 | if (adaptationAccessCheckPending) |
2afaba07 | 1346 | return; |
fc68f6b1 | 1347 | |
2afaba07 | 1348 | #endif |
62e76326 | 1349 | |
2afaba07 | 1350 | /* |
1351 | * At this point the reply headers have been parsed and consumed. | |
1352 | * That means header content has been removed from readBuf and | |
1353 | * it contains only body data. | |
1354 | */ | |
9e008dda AJ |
1355 | if (flags.chunked) { |
1356 | if (!decodeAndWriteReplyBody()) { | |
1357 | flags.do_next_read = 0; | |
1358 | serverComplete(); | |
1359 | return; | |
1360 | } | |
1361 | } else | |
1362 | writeReplyBody(); | |
528b2c61 | 1363 | |
e6ccf245 | 1364 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1365 | /* |
073ba374 | 1366 | * The above writeReplyBody() call could ABORT this entry, |
62e76326 | 1367 | * in that case, the server FD should already be closed. |
1368 | * there's nothing for us to do. | |
1369 | */ | |
1370 | (void) 0; | |
1371 | } else | |
1372 | switch (persistentConnStatus()) { | |
dc49061a | 1373 | case INCOMPLETE_MSG: { |
3e4bebf8 | 1374 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG from " << serverConnection); |
21b92762 | 1375 | /* Wait for more data or EOF condition */ |
8d77a37c | 1376 | AsyncCall::Pointer nil; |
21b92762 | 1377 | if (flags.keepalive_broken) { |
8d77a37c | 1378 | commSetConnTimeout(serverConnection, 10, nil); |
21b92762 | 1379 | } else { |
8d77a37c | 1380 | commSetConnTimeout(serverConnection, Config.Timeout.read, nil); |
21b92762 | 1381 | } |
1382 | ||
f61f0107 | 1383 | flags.do_next_read = 1; |
dc49061a A |
1384 | } |
1385 | break; | |
62e76326 | 1386 | |
1387 | case COMPLETE_PERSISTENT_MSG: | |
3e4bebf8 | 1388 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG from " << serverConnection); |
62e76326 | 1389 | /* yes we have to clear all these! */ |
8d77a37c | 1390 | commUnsetConnTimeout(serverConnection); |
f61f0107 | 1391 | flags.do_next_read = 0; |
62e76326 | 1392 | |
8d71285d | 1393 | comm_remove_close_handler(serverConnection->fd, closeHandler); |
dc56a9b1 | 1394 | closeHandler = NULL; |
8d71285d | 1395 | fwd->unregister(serverConnection); |
fc68f6b1 | 1396 | |
e24f13cd CT |
1397 | if (request->flags.spoof_client_ip) |
1398 | client_addr = request->client_addr; | |
fc68f6b1 | 1399 | |
d67acb4e | 1400 | |
9e008dda AJ |
1401 | if (request->flags.pinned) { |
1402 | ispinned = true; | |
1403 | } else if (request->flags.connection_auth && request->flags.auth_sent) { | |
1404 | ispinned = true; | |
1405 | } | |
1406 | ||
e24f13cd CT |
1407 | if (request->pinnedConnection() && ispinned) { |
1408 | request->pinnedConnection()->pinConnection(serverConnection, request, _peer, | |
9e008dda | 1409 | (request->flags.connection_auth != 0)); |
bd0723ad | 1410 | } else { |
e24f13cd | 1411 | fwd->pconnPush(serverConnection, request->peer_host ? request->peer_host : request->GetHost()); |
bd0723ad | 1412 | } |
1413 | ||
8d71285d | 1414 | serverConnection = NULL; |
5f8252d2 | 1415 | serverComplete(); |
62e76326 | 1416 | return; |
1417 | ||
1418 | case COMPLETE_NONPERSISTENT_MSG: | |
3e4bebf8 | 1419 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG from " << serverConnection); |
5f8252d2 | 1420 | serverComplete(); |
62e76326 | 1421 | return; |
1422 | } | |
1423 | ||
5f8252d2 | 1424 | maybeReadVirginBody(); |
c4b7a5a9 | 1425 | } |
1426 | ||
1427 | void | |
5f8252d2 | 1428 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1429 | { |
52edecde | 1430 | // we may need to grow the buffer if headers do not fit |
1c9605c5 | 1431 | const int minRead = flags.headers_parsed ? 0 :1024; |
d5f8d05f | 1432 | const int read_size = replyBodySpace(*readBuf, minRead); |
2afaba07 | 1433 | |
5f8252d2 | 1434 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
9cf7de1b | 1435 | " read up to " << read_size << " bytes from " << serverConnection); |
2afaba07 | 1436 | |
1437 | /* | |
1438 | * why <2? Because delayAwareRead() won't actually read if | |
1439 | * you ask it to read 1 byte. The delayed read request | |
1440 | * just gets re-queued until the client side drains, then | |
1441 | * the I/O thread hangs. Better to not register any read | |
1442 | * handler until we get a notification from someone that | |
1443 | * its okay to read again. | |
1444 | */ | |
d5f8d05f | 1445 | if (read_size < 2) |
52edecde | 1446 | return; |
2afaba07 | 1447 | |
f61f0107 | 1448 | if (flags.do_next_read) { |
dc56a9b1 | 1449 | flags.do_next_read = 0; |
1450 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
3e4bebf8 | 1451 | entry->delayAwareRead(serverConnection, readBuf->space(read_size), read_size, |
4cb2536f | 1452 | JobCallback(11, 5, Dialer, this, HttpStateData::readReply)); |
528b2c61 | 1453 | } |
090089c4 | 1454 | } |
1455 | ||
39cb8c41 | 1456 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1457 | void |
39cb8c41 | 1458 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1459 | { |
9cf7de1b | 1460 | debugs(11, 5, HERE << serverConnection << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1461 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1462 | |
528b2c61 | 1463 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1464 | #endif |
62e76326 | 1465 | |
dc56a9b1 | 1466 | if (io.size > 0) { |
49ae8b95 | 1467 | fd_bytes(io.fd, io.size, FD_WRITE); |
dc56a9b1 | 1468 | kb_incr(&statCounter.server.all.kbytes_out, io.size); |
1469 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
ee1679df | 1470 | } |
62e76326 | 1471 | |
dc56a9b1 | 1472 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1473 | return; |
1474 | ||
dc56a9b1 | 1475 | if (io.flag) { |
6cae5db1 | 1476 | ErrorState *err; |
dc56a9b1 | 1477 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
1478 | err->xerrno = io.xerrno; | |
1479 | fwd->fail(err); | |
8d71285d | 1480 | serverConnection->close(); |
62e76326 | 1481 | return; |
090089c4 | 1482 | } |
72b63f06 | 1483 | |
39cb8c41 AR |
1484 | sendComplete(); |
1485 | } | |
1486 | ||
1487 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1488 | void | |
1489 | HttpStateData::sendComplete() | |
1490 | { | |
2afaba07 | 1491 | /* |
1492 | * Set the read timeout here because it hasn't been set yet. | |
1493 | * We only set the read timeout after the request has been | |
1494 | * fully written to the server-side. If we start the timeout | |
1495 | * after connection establishment, then we are likely to hit | |
1496 | * the timeout for POST/PUT requests that have very large | |
1497 | * request bodies. | |
1498 | */ | |
dc56a9b1 | 1499 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1500 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1501 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1502 | |
8d77a37c | 1503 | commSetConnTimeout(serverConnection, Config.Timeout.read, timeoutCall); |
dc56a9b1 | 1504 | |
1505 | flags.request_sent = 1; | |
e1381638 | 1506 | |
e24f13cd | 1507 | request->hier.peer_http_request_sent = current_time; |
090089c4 | 1508 | } |
1509 | ||
5f8252d2 | 1510 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1511 | void |
5f8252d2 | 1512 | HttpStateData::closeServer() |
2afaba07 | 1513 | { |
9cf7de1b | 1514 | debugs(11,5, HERE << "closing HTTP server " << serverConnection << " this " << this); |
fc68f6b1 | 1515 | |
9cf7de1b | 1516 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d AJ |
1517 | fwd->unregister(serverConnection); |
1518 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
dc56a9b1 | 1519 | closeHandler = NULL; |
8d71285d | 1520 | serverConnection->close(); |
2afaba07 | 1521 | } |
5f8252d2 | 1522 | } |
2afaba07 | 1523 | |
5f8252d2 | 1524 | bool |
1525 | HttpStateData::doneWithServer() const | |
1526 | { | |
9cf7de1b | 1527 | return !Comm::IsConnOpen(serverConnection); |
2afaba07 | 1528 | } |
1529 | ||
ee0b94f4 HN |
1530 | /* |
1531 | * Fixup authentication request headers for special cases | |
1532 | */ | |
1533 | static void | |
e24f13cd | 1534 | httpFixupAuthentication(HttpRequest * request, const HttpHeader * hdr_in, HttpHeader * hdr_out, http_state_flags flags) |
ee0b94f4 HN |
1535 | { |
1536 | http_hdr_type header = flags.originpeer ? HDR_AUTHORIZATION : HDR_PROXY_AUTHORIZATION; | |
1537 | ||
1538 | /* Nothing to do unless we are forwarding to a peer */ | |
1539 | if (!request->flags.proxying) | |
f54f527e | 1540 | return; |
ee0b94f4 HN |
1541 | |
1542 | /* Needs to be explicitly enabled */ | |
e24f13cd | 1543 | if (!request->peer_login) |
f54f527e | 1544 | return; |
ee0b94f4 HN |
1545 | |
1546 | /* Maybe already dealt with? */ | |
1547 | if (hdr_out->has(header)) | |
f54f527e | 1548 | return; |
ee0b94f4 HN |
1549 | |
1550 | /* Nothing to do here for PASSTHRU */ | |
e24f13cd | 1551 | if (strcmp(request->peer_login, "PASSTHRU") == 0) |
f54f527e | 1552 | return; |
ee0b94f4 HN |
1553 | |
1554 | /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */ | |
e24f13cd | 1555 | if (flags.originpeer && strcmp(request->peer_login, "PROXYPASS") == 0 && hdr_in->has(HDR_PROXY_AUTHORIZATION)) { |
f54f527e | 1556 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
ee0b94f4 | 1557 | |
f54f527e AJ |
1558 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1559 | hdr_out->putStr(header, auth); | |
1560 | return; | |
1561 | } | |
ee0b94f4 HN |
1562 | } |
1563 | ||
1564 | /* Special mode to pass the username to the upstream cache */ | |
e24f13cd | 1565 | if (*request->peer_login == '*') { |
f54f527e AJ |
1566 | char loginbuf[256]; |
1567 | const char *username = "-"; | |
ee0b94f4 | 1568 | |
e24f13cd CT |
1569 | if (request->extacl_user.size()) |
1570 | username = request->extacl_user.termedBuf(); | |
2f1431ea | 1571 | #if USE_AUTH |
e24f13cd CT |
1572 | else if (request->auth_user_request != NULL) |
1573 | username = request->auth_user_request->username(); | |
2f1431ea | 1574 | #endif |
ee0b94f4 | 1575 | |
e24f13cd | 1576 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, request->peer_login + 1); |
ee0b94f4 | 1577 | |
f54f527e | 1578 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1579 | old_base64_encode(loginbuf)); |
f54f527e | 1580 | return; |
ee0b94f4 HN |
1581 | } |
1582 | ||
1583 | /* external_acl provided credentials */ | |
e24f13cd CT |
1584 | if (request->extacl_user.size() && request->extacl_passwd.size() && |
1585 | (strcmp(request->peer_login, "PASS") == 0 || | |
1586 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
f54f527e AJ |
1587 | char loginbuf[256]; |
1588 | snprintf(loginbuf, sizeof(loginbuf), SQUIDSTRINGPH ":" SQUIDSTRINGPH, | |
e24f13cd CT |
1589 | SQUIDSTRINGPRINT(request->extacl_user), |
1590 | SQUIDSTRINGPRINT(request->extacl_passwd)); | |
f54f527e | 1591 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
8bdd0cec | 1592 | old_base64_encode(loginbuf)); |
f54f527e | 1593 | return; |
ee0b94f4 HN |
1594 | } |
1595 | ||
9ca29d23 | 1596 | /* Kerberos login to peer */ |
2f1431ea | 1597 | #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI |
e24f13cd | 1598 | if (strncmp(request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { |
9ca29d23 AJ |
1599 | char *Token=NULL; |
1600 | char *PrincipalName=NULL,*p; | |
e24f13cd | 1601 | if ((p=strchr(request->peer_login,':')) != NULL ) { |
9ca29d23 AJ |
1602 | PrincipalName=++p; |
1603 | } | |
e24f13cd | 1604 | Token = peer_proxy_negotiate_auth(PrincipalName, request->peer_host); |
9ca29d23 | 1605 | if (Token) { |
63f03f79 | 1606 | httpHeaderPutStrf(hdr_out, header, "Negotiate %s",Token); |
9ca29d23 AJ |
1607 | } |
1608 | return; | |
1609 | } | |
1610 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1611 | ||
0606266f | 1612 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
e24f13cd | 1613 | old_base64_encode(request->peer_login)); |
ee0b94f4 HN |
1614 | return; |
1615 | } | |
1616 | ||
99edd1c3 | 1617 | /* |
9e008dda | 1618 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1619 | * used by buildRequestPrefix() |
818c6c9e | 1620 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1621 | */ |
e1e72f06 | 1622 | void |
e5ee81f0 | 1623 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
e5ee81f0 | 1624 | StoreEntry * entry, |
1625 | HttpHeader * hdr_out, | |
386c7842 | 1626 | const http_state_flags flags) |
6bf8443a | 1627 | { |
99edd1c3 | 1628 | /* building buffer for complex strings */ |
5999b776 | 1629 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1630 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1631 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
e24f13cd | 1632 | const HttpHeader *hdr_in = &request->header; |
67c06f0d | 1633 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1634 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1635 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1636 | |
262a0e14 | 1637 | /* append our IMS header */ |
fa3e249f | 1638 | if (request->lastmod > -1) |
a9925b40 | 1639 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1640 | |
e24f13cd | 1641 | bool we_do_ranges = decideIfWeDoRanges (request); |
528b2c61 | 1642 | |
30abd221 | 1643 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1644 | |
a9925b40 | 1645 | while ((e = hdr_in->getEntry(&pos))) |
e24f13cd | 1646 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1647 | |
43ae1d95 | 1648 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1649 | * into offset-length data, and this works around our inability to do so. |
1650 | */ | |
e24f13cd | 1651 | if (!we_do_ranges && request->multipartRangeRequest()) { |
62e76326 | 1652 | /* don't cache the result */ |
e24f13cd | 1653 | request->flags.cachable = 0; |
62e76326 | 1654 | /* pretend it's not a range request */ |
e24f13cd CT |
1655 | delete request->range; |
1656 | request->range = NULL; | |
1657 | request->flags.range = 0; | |
62e76326 | 1658 | } |
528b2c61 | 1659 | |
99edd1c3 | 1660 | /* append Via */ |
736cb6aa | 1661 | if (Config.onoff.via) { |
30abd221 | 1662 | String strVia; |
a9925b40 | 1663 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1664 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
e24f13cd CT |
1665 | request->http_ver.major, |
1666 | request->http_ver.minor, ThisCache); | |
62e76326 | 1667 | strListAdd(&strVia, bbuf, ','); |
d53b3f6d | 1668 | hdr_out->putStr(HDR_VIA, strVia.termedBuf()); |
30abd221 | 1669 | strVia.clean(); |
736cb6aa | 1670 | } |
62e76326 | 1671 | |
e24f13cd | 1672 | if (request->flags.accelerated) { |
43ae1d95 | 1673 | /* Append Surrogate-Capabilities */ |
45cca89d AJ |
1674 | String strSurrogate(hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
1675 | #if USE_SQUID_ESI | |
1676 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1677 | #else | |
1678 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1679 | #endif | |
43ae1d95 | 1680 | strListAdd(&strSurrogate, bbuf, ','); |
d53b3f6d | 1681 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1682 | } |
43ae1d95 | 1683 | |
67c06f0d | 1684 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1685 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 AR |
1686 | |
1687 | String strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1688 | ||
1689 | if (strFwd.size() > 65536/2) { | |
1690 | // There is probably a forwarding loop with Via detection disabled. | |
1691 | // If we do nothing, String will assert on overflow soon. | |
1692 | // TODO: Terminate all transactions with huge XFF? | |
1693 | strFwd = "error"; | |
1694 | ||
1695 | static int warnedCount = 0; | |
1696 | if (warnedCount++ < 100) { | |
e24f13cd | 1697 | const char *url = entry ? entry->url() : urlCanonical(request); |
c4f30223 AR |
1698 | debugs(11, 1, "Warning: likely forwarding loop with " << url); |
1699 | } | |
1700 | } | |
1701 | ||
9e008dda | 1702 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1703 | /** If set to ON - append client IP or 'unknown'. */ |
e24f13cd | 1704 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1705 | strListAdd(&strFwd, "unknown", ','); |
1706 | else | |
e24f13cd | 1707 | strListAdd(&strFwd, request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); |
9e008dda | 1708 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1709 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1710 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1711 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1712 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1713 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1714 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
e24f13cd | 1715 | if ( request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1716 | strFwd = "unknown"; |
1717 | else | |
e24f13cd | 1718 | strFwd = request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); |
67c06f0d | 1719 | } |
9e008dda | 1720 | if (strFwd.size() > 0) |
d53b3f6d | 1721 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1722 | } |
67c06f0d | 1723 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1724 | |
99edd1c3 | 1725 | /* append Host if not there already */ |
a9925b40 | 1726 | if (!hdr_out->has(HDR_HOST)) { |
e24f13cd CT |
1727 | if (request->peer_domain) { |
1728 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
1729 | } else if (request->port == urlDefaultPort(request->protocol)) { | |
62e76326 | 1730 | /* use port# only if not default */ |
e24f13cd | 1731 | hdr_out->putStr(HDR_HOST, request->GetHost()); |
62e76326 | 1732 | } else { |
1733 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1734 | request->GetHost(), |
1735 | (int) request->port); | |
62e76326 | 1736 | } |
6bf8443a | 1737 | } |
62e76326 | 1738 | |
c68e9c6b | 1739 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1740 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
e24f13cd | 1741 | if (!request->flags.proxying && request->login && *request->login) { |
62e76326 | 1742 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
8bdd0cec | 1743 | old_base64_encode(request->login)); |
62e76326 | 1744 | } |
c68e9c6b | 1745 | } |
62e76326 | 1746 | |
ee0b94f4 | 1747 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
e24f13cd | 1748 | httpFixupAuthentication(request, hdr_in, hdr_out, flags); |
62e76326 | 1749 | |
ee0b94f4 HN |
1750 | /* append Cache-Control, add max-age if not there already */ |
1751 | { | |
a9925b40 | 1752 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1753 | |
1754 | if (!cc) | |
1755 | cc = httpHdrCcCreate(); | |
1756 | ||
7dc5c309 AJ |
1757 | #if 0 /* see bug 2330 */ |
1758 | /* Set no-cache if determined needed but not found */ | |
e24f13cd | 1759 | if (request->flags.nocache) |
7dc5c309 AJ |
1760 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1761 | #endif | |
1762 | ||
af6a12ee AJ |
1763 | /* Add max-age only without no-cache */ |
1764 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE) && !EBIT_TEST(cc->mask, CC_NO_CACHE)) { | |
43ae1d95 | 1765 | const char *url = |
e24f13cd | 1766 | entry ? entry->url() : urlCanonical(request); |
62e76326 | 1767 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1768 | ||
62e76326 | 1769 | } |
1770 | ||
ce2d6441 | 1771 | /* Enforce sibling relations */ |
62e76326 | 1772 | if (flags.only_if_cached) |
1773 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1774 | ||
a9925b40 | 1775 | hdr_out->putCc(cc); |
62e76326 | 1776 | |
1777 | httpHdrCcDestroy(cc); | |
6bf8443a | 1778 | } |
62e76326 | 1779 | |
99edd1c3 | 1780 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1781 | if (flags.keepalive) { |
95e78500 | 1782 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
603a02fd | 1783 | } |
62e76326 | 1784 | |
a7ad6e4e | 1785 | /* append Front-End-Https */ |
1786 | if (flags.front_end_https) { | |
0c3d3f65 | 1787 | if (flags.front_end_https == 1 || request->protocol == AnyP::PROTO_HTTPS) |
a9925b40 | 1788 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1789 | } |
1790 | ||
e31a1e67 AR |
1791 | if (flags.chunked_request) { |
1792 | // Do not just copy the original value so that if the client-side | |
1793 | // starts decode other encodings, this code may remain valid. | |
39cb8c41 AR |
1794 | hdr_out->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1795 | } | |
1796 | ||
6bccf575 | 1797 | /* Now mangle the headers. */ |
4f56514c | 1798 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1799 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1800 | |
30abd221 | 1801 | strConnection.clean(); |
99edd1c3 | 1802 | } |
1803 | ||
9e498bfb AJ |
1804 | /** |
1805 | * Decides whether a particular header may be cloned from the received Clients request | |
1806 | * to our outgoing fetch request. | |
1807 | */ | |
528b2c61 | 1808 | void |
e24f13cd | 1809 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags flags) |
528b2c61 | 1810 | { |
e8466ea9 | 1811 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 1812 | |
528b2c61 | 1813 | switch (e->id) { |
62e76326 | 1814 | |
af6a12ee | 1815 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 1816 | |
be753325 | 1817 | case HDR_PROXY_AUTHORIZATION: |
9e498bfb AJ |
1818 | /** \par Proxy-Authorization: |
1819 | * Only pass on proxy authentication to peers for which | |
62e76326 | 1820 | * authentication forwarding is explicitly enabled |
1821 | */ | |
e24f13cd CT |
1822 | if (!flags.originpeer && flags.proxying && request->peer_login && |
1823 | (strcmp(request->peer_login, "PASS") == 0 || | |
1824 | strcmp(request->peer_login, "PROXYPASS") == 0 || | |
1825 | strcmp(request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 1826 | hdr_out->addEntry(e->clone()); |
62e76326 | 1827 | } |
62e76326 | 1828 | break; |
1829 | ||
af6a12ee | 1830 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb AJ |
1831 | |
1832 | case HDR_CONNECTION: /** \par Connection: */ | |
1833 | case HDR_TE: /** \par TE: */ | |
1834 | case HDR_KEEP_ALIVE: /** \par Keep-Alive: */ | |
1835 | case HDR_PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
a1651bad | 1836 | case HDR_TRAILER: /** \par Trailer: */ |
9e498bfb AJ |
1837 | case HDR_UPGRADE: /** \par Upgrade: */ |
1838 | case HDR_TRANSFER_ENCODING: /** \par Transfer-Encoding: */ | |
1839 | break; | |
1840 | ||
1841 | ||
af6a12ee | 1842 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 1843 | |
be753325 | 1844 | case HDR_AUTHORIZATION: |
9e498bfb AJ |
1845 | /** \par WWW-Authorization: |
1846 | * Pass on WWW authentication */ | |
62e76326 | 1847 | |
1848 | if (!flags.originpeer) { | |
eede25e7 | 1849 | hdr_out->addEntry(e->clone()); |
62e76326 | 1850 | } else { |
9e498bfb | 1851 | /** \note In accelerators, only forward authentication if enabled |
ee0b94f4 | 1852 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 1853 | */ |
e24f13cd CT |
1854 | if (request->peer_login && |
1855 | (strcmp(request->peer_login, "PASS") == 0 || | |
1856 | strcmp(request->peer_login, "PASSTHRU") == 0 || | |
1857 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1858 | hdr_out->addEntry(e->clone()); |
62e76326 | 1859 | } |
1860 | } | |
1861 | ||
1862 | break; | |
1863 | ||
be753325 | 1864 | case HDR_HOST: |
9e498bfb | 1865 | /** \par Host: |
b883b594 | 1866 | * Normally Squid rewrites the Host: header. |
1867 | * However, there is one case when we don't: If the URL | |
62e76326 | 1868 | * went through our redirector and the admin configured |
1869 | * 'redir_rewrites_host' to be off. | |
1870 | */ | |
e24f13cd CT |
1871 | if (request->peer_domain) |
1872 | hdr_out->putStr(HDR_HOST, request->peer_domain); | |
488b27c5 | 1873 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1874 | hdr_out->addEntry(e->clone()); |
b883b594 | 1875 | else { |
1876 | /* use port# only if not default */ | |
1877 | ||
e24f13cd CT |
1878 | if (request->port == urlDefaultPort(request->protocol)) { |
1879 | hdr_out->putStr(HDR_HOST, request->GetHost()); | |
b883b594 | 1880 | } else { |
1881 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
e24f13cd CT |
1882 | request->GetHost(), |
1883 | (int) request->port); | |
b883b594 | 1884 | } |
1885 | } | |
62e76326 | 1886 | |
1887 | break; | |
1888 | ||
be753325 | 1889 | case HDR_IF_MODIFIED_SINCE: |
9e498bfb | 1890 | /** \par If-Modified-Since: |
af6a12ee | 1891 | * append unless we added our own; |
9e498bfb | 1892 | * \note at most one client's ims header can pass through */ |
b883b594 | 1893 | |
a9925b40 | 1894 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1895 | hdr_out->addEntry(e->clone()); |
62e76326 | 1896 | |
1897 | break; | |
1898 | ||
be753325 | 1899 | case HDR_MAX_FORWARDS: |
9e498bfb | 1900 | /** \par Max-Forwards: |
fc90edc3 | 1901 | * pass only on TRACE or OPTIONS requests */ |
e24f13cd | 1902 | if (request->method == METHOD_TRACE || request->method == METHOD_OPTIONS) { |
fc90edc3 | 1903 | const int64_t hops = e->getInt64(); |
62e76326 | 1904 | |
1905 | if (hops > 0) | |
fc90edc3 | 1906 | hdr_out->putInt64(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1907 | } |
1908 | ||
1909 | break; | |
1910 | ||
be753325 | 1911 | case HDR_VIA: |
9e498bfb AJ |
1912 | /** \par Via: |
1913 | * If Via is disabled then forward any received header as-is. | |
1914 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 1915 | |
1916 | if (!Config.onoff.via) | |
eede25e7 | 1917 | hdr_out->addEntry(e->clone()); |
62e76326 | 1918 | |
1919 | break; | |
1920 | ||
be753325 | 1921 | case HDR_RANGE: |
62e76326 | 1922 | |
be753325 | 1923 | case HDR_IF_RANGE: |
62e76326 | 1924 | |
be753325 | 1925 | case HDR_REQUEST_RANGE: |
9e498bfb AJ |
1926 | /** \par Range:, If-Range:, Request-Range: |
1927 | * Only pass if we accept ranges */ | |
62e76326 | 1928 | if (!we_do_ranges) |
eede25e7 | 1929 | hdr_out->addEntry(e->clone()); |
62e76326 | 1930 | |
1931 | break; | |
1932 | ||
95e78500 AJ |
1933 | case HDR_PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
1934 | break; | |
62e76326 | 1935 | |
f228d6f6 AR |
1936 | case HDR_CONTENT_LENGTH: |
1937 | // pass through unless we chunk; also, keeping this away from default | |
1938 | // prevents request smuggling via Connection: Content-Length tricks | |
1939 | if (!flags.chunked_request) | |
1940 | hdr_out->addEntry(e->clone()); | |
1941 | break; | |
1942 | ||
be753325 | 1943 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1944 | |
be753325 | 1945 | case HDR_CACHE_CONTROL: |
95e78500 | 1946 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
1947 | * handled specially by Squid, so leave off for now. |
1948 | * append these after the loop if needed */ | |
62e76326 | 1949 | break; |
1950 | ||
be753325 | 1951 | case HDR_FRONT_END_HTTPS: |
9e498bfb AJ |
1952 | /** \par Front-End-Https: |
1953 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 1954 | if (!flags.front_end_https) |
eede25e7 | 1955 | hdr_out->addEntry(e->clone()); |
62e76326 | 1956 | |
1957 | break; | |
1958 | ||
be753325 | 1959 | default: |
9e498bfb AJ |
1960 | /** \par default. |
1961 | * pass on all other header fields | |
1962 | * which are NOT listed by the special Connection: header. */ | |
1963 | ||
a7a42b14 | 1964 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name.termedBuf(), ',')) { |
e1ea7456 | 1965 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
1966 | return; |
1967 | } | |
1968 | ||
eede25e7 | 1969 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1970 | } |
1971 | } | |
1972 | ||
e5ee81f0 | 1973 | bool |
e24f13cd | 1974 | HttpStateData::decideIfWeDoRanges (HttpRequest * request) |
528b2c61 | 1975 | { |
e5ee81f0 | 1976 | bool result = true; |
62e76326 | 1977 | /* decide if we want to do Ranges ourselves |
1978 | * and fetch the whole object now) | |
1979 | * We want to handle Ranges ourselves iff | |
1980 | * - we can actually parse client Range specs | |
1981 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1982 | * - reply will be cachable | |
1983 | * (If the reply will be uncachable we have to throw it away after | |
1984 | * serving this request, so it is better to forward ranges to | |
1985 | * the server and fetch only the requested content) | |
1986 | */ | |
1987 | ||
e24f13cd | 1988 | int64_t roffLimit = request->getRangeOffsetLimit(); |
11e3fa1c | 1989 | |
e24f13cd CT |
1990 | if (NULL == request->range || !request->flags.cachable |
1991 | || request->range->offsetLimitExceeded(roffLimit) || request->flags.connection_auth) | |
e5ee81f0 | 1992 | result = false; |
62e76326 | 1993 | |
9e008dda | 1994 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
e24f13cd CT |
1995 | request->range << ", cachable: " << |
1996 | request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 1997 | |
1998 | return result; | |
528b2c61 | 1999 | } |
2000 | ||
62e76326 | 2001 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 2002 | * return the length of the prefix */ |
9bc73deb | 2003 | mb_size_t |
e24f13cd | 2004 | HttpStateData::buildRequestPrefix(MemBuf * mb) |
99edd1c3 | 2005 | { |
2006 | const int offset = mb->size; | |
3872be7c | 2007 | HttpVersion httpver(1,1); |
e24f13cd CT |
2008 | const char * url; |
2009 | if (_peer && !_peer->options.originserver) | |
2010 | url = entry->url(); | |
2011 | else | |
2012 | url = request->urlpath.termedBuf(); | |
2fe7eff9 | 2013 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
e24f13cd CT |
2014 | RequestMethodStr(request->method), |
2015 | url && *url ? url : "/", | |
2fe7eff9 | 2016 | httpver.major,httpver.minor); |
99edd1c3 | 2017 | /* build and pack headers */ |
2018 | { | |
75faaa7a | 2019 | HttpHeader hdr(hoRequest); |
62e76326 | 2020 | Packer p; |
e24f13cd | 2021 | httpBuildRequestHeader(request, entry, &hdr, flags); |
9e008dda | 2022 | |
e24f13cd CT |
2023 | if (request->flags.pinned && request->flags.connection_auth) |
2024 | request->flags.auth_sent = 1; | |
d67acb4e | 2025 | else if (hdr.has(HDR_AUTHORIZATION)) |
e24f13cd | 2026 | request->flags.auth_sent = 1; |
d67acb4e | 2027 | |
62e76326 | 2028 | packerToMemInit(&p, mb); |
a9925b40 | 2029 | hdr.packInto(&p); |
519e0948 | 2030 | hdr.clean(); |
62e76326 | 2031 | packerClean(&p); |
9d9d144b | 2032 | } |
99edd1c3 | 2033 | /* append header terminator */ |
2fe7eff9 | 2034 | mb->append(crlf, 2); |
99edd1c3 | 2035 | return mb->size - offset; |
6bf8443a | 2036 | } |
62e76326 | 2037 | |
090089c4 | 2038 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2039 | bool |
2bb867b5 | 2040 | HttpStateData::sendRequest() |
090089c4 | 2041 | { |
99edd1c3 | 2042 | MemBuf mb; |
090089c4 | 2043 | |
9cf7de1b | 2044 | debugs(11, 5, HERE << serverConnection << ", request " << request << ", this " << this << "."); |
a0297974 | 2045 | |
6b679a01 | 2046 | if (!Comm::IsConnOpen(serverConnection)) { |
9cf7de1b | 2047 | debugs(11,3, HERE << "cannot send request to closing " << serverConnection); |
a0297974 AR |
2048 | assert(closeHandler != NULL); |
2049 | return false; | |
2050 | } | |
2051 | ||
dc56a9b1 | 2052 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2053 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2054 | TimeoutDialer, this, HttpStateData::httpTimeout); |
8d77a37c | 2055 | commSetConnTimeout(serverConnection, Config.Timeout.lifetime, timeoutCall); |
2bb867b5 | 2056 | flags.do_next_read = 1; |
5f8252d2 | 2057 | maybeReadVirginBody(); |
2058 | ||
e24f13cd | 2059 | if (request->body_pipe != NULL) { |
123ec4de | 2060 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2061 | return false; |
9e008dda | 2062 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2063 | requestSender = JobCallback(11,5, |
4cb2536f | 2064 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2065 | |
2066 | Must(!flags.chunked_request); | |
f228d6f6 | 2067 | // use chunked encoding if we do not know the length |
e24f13cd | 2068 | if (request->content_length < 0) |
e31a1e67 | 2069 | flags.chunked_request = 1; |
5f8252d2 | 2070 | } else { |
2071 | assert(!requestBodySource); | |
9e008dda | 2072 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2073 | requestSender = JobCallback(11,5, |
39cb8c41 | 2074 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2075 | } |
54220df8 | 2076 | |
2bb867b5 | 2077 | if (_peer != NULL) { |
2078 | if (_peer->options.originserver) { | |
2079 | flags.proxying = 0; | |
2080 | flags.originpeer = 1; | |
62e76326 | 2081 | } else { |
2bb867b5 | 2082 | flags.proxying = 1; |
2083 | flags.originpeer = 0; | |
62e76326 | 2084 | } |
be753325 | 2085 | } else { |
2bb867b5 | 2086 | flags.proxying = 0; |
2087 | flags.originpeer = 0; | |
be753325 | 2088 | } |
62e76326 | 2089 | |
efb9218c | 2090 | /* |
99edd1c3 | 2091 | * Is keep-alive okay for all request methods? |
efb9218c | 2092 | */ |
e24f13cd | 2093 | if (request->flags.must_keepalive) |
9e008dda | 2094 | flags.keepalive = 1; |
d67acb4e | 2095 | else if (!Config.onoff.server_pconns) |
2bb867b5 | 2096 | flags.keepalive = 0; |
2097 | else if (_peer == NULL) | |
2098 | flags.keepalive = 1; | |
2099 | else if (_peer->stats.n_keepalives_sent < 10) | |
2100 | flags.keepalive = 1; | |
2101 | else if ((double) _peer->stats.n_keepalives_recv / | |
2102 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
2103 | flags.keepalive = 1; | |
2104 | ||
2105 | if (_peer) { | |
2ecba5b6 | 2106 | /*The old code here was |
e24f13cd CT |
2107 | if (neighborType(_peer, request) == PEER_SIBLING && ... |
2108 | which is equivalent to: | |
2109 | if (neighborType(_peer, NULL) == PEER_SIBLING && ... | |
2110 | or better: | |
2111 | if (((_peer->type == PEER_MULTICAST && p->options.mcast_siblings) || | |
2112 | _peer->type == PEER_SIBLINGS ) && _peer->options.allow_miss) | |
2113 | flags.only_if_cached = 1; | |
2114 | ||
2115 | But I suppose it was a bug | |
2116 | */ | |
2bb867b5 | 2117 | if (neighborType(_peer, request) == PEER_SIBLING && |
2118 | !_peer->options.allow_miss) | |
2119 | flags.only_if_cached = 1; | |
2120 | ||
2121 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2122 | } |
62e76326 | 2123 | |
2fe7eff9 | 2124 | mb.init(); |
9ca29d23 | 2125 | request->peer_host=_peer?_peer->host:NULL; |
e24f13cd | 2126 | buildRequestPrefix(&mb); |
9cf7de1b | 2127 | debugs(11, 6, HERE << serverConnection << ":\n" << mb.buf); |
b0388924 | 2128 | Comm::Write(serverConnection, &mb, requestSender); |
5f8252d2 | 2129 | |
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() << "\"" ); |
a3d50c30 | 2171 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 2172 | |
5f8252d2 | 2173 | if (!httpState->sendRequest()) { |
bf8fe701 | 2174 | debugs(11, 3, "httpStart: aborted"); |
5f8252d2 | 2175 | delete httpState; |
2176 | return; | |
2177 | } | |
62e76326 | 2178 | |
5f8252d2 | 2179 | statCounter.server.all.requests++; |
83704487 | 2180 | statCounter.server.http.requests++; |
62e76326 | 2181 | |
b6a2f15e | 2182 | /* |
2183 | * We used to set the read timeout here, but not any more. | |
2184 | * Now its set in httpSendComplete() after the full request, | |
2185 | * including request body, has been written to the server. | |
2186 | */ | |
090089c4 | 2187 | } |
2188 | ||
39cb8c41 AR |
2189 | /// if broken posts are enabled for the request, try to fix and return true |
2190 | bool | |
2191 | HttpStateData::finishingBrokenPost() | |
2bb867b5 | 2192 | { |
626096be | 2193 | #if USE_HTTP_VIOLATIONS |
39cb8c41 AR |
2194 | if (!Config.accessList.brokenPosts) { |
2195 | debugs(11, 5, HERE << "No brokenPosts list"); | |
2196 | return false; | |
2197 | } | |
a0297974 | 2198 | |
e11513e1 | 2199 | ACLFilledChecklist ch(Config.accessList.brokenPosts, originalRequest(), NULL); |
39cb8c41 AR |
2200 | if (!ch.fastCheck()) { |
2201 | debugs(11, 5, HERE << "didn't match brokenPosts"); | |
2202 | return false; | |
2203 | } | |
a0297974 | 2204 | |
9cf7de1b AJ |
2205 | if (!Comm::IsConnOpen(serverConnection)) { |
2206 | debugs(11,2, HERE << "ignoring broken POST for closed " << serverConnection); | |
39cb8c41 AR |
2207 | assert(closeHandler != NULL); |
2208 | return true; // prevent caller from proceeding as if nothing happened | |
54220df8 | 2209 | } |
39cb8c41 AR |
2210 | |
2211 | debugs(11, 2, "finishingBrokenPost: fixing broken POST"); | |
2212 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
2213 | requestSender = JobCallback(11,5, | |
2214 | Dialer, this, HttpStateData::wroteLast); | |
b0388924 | 2215 | Comm::Write(serverConnection, "\r\n", 2, requestSender, NULL); |
39cb8c41 AR |
2216 | return true; |
2217 | #else | |
2218 | return false; | |
626096be | 2219 | #endif /* USE_HTTP_VIOLATIONS */ |
39cb8c41 AR |
2220 | } |
2221 | ||
2222 | /// if needed, write last-chunk to end the request body and return true | |
2223 | bool | |
2224 | HttpStateData::finishingChunkedRequest() | |
2225 | { | |
2226 | if (flags.sentLastChunk) { | |
2227 | debugs(11, 5, HERE << "already sent last-chunk"); | |
2228 | return false; | |
2229 | } | |
2230 | ||
2231 | Must(receivedWholeRequestBody); // or we should not be sending last-chunk | |
2232 | flags.sentLastChunk = true; | |
2233 | ||
2234 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
e0d28505 | 2235 | requestSender = JobCallback(11,5, Dialer, this, HttpStateData::wroteLast); |
b0388924 | 2236 | Comm::Write(serverConnection, "0\r\n\r\n", 5, requestSender, NULL); |
39cb8c41 AR |
2237 | return true; |
2238 | } | |
2239 | ||
2240 | void | |
2241 | HttpStateData::doneSendingRequestBody() | |
2242 | { | |
2243 | ServerStateData::doneSendingRequestBody(); | |
9cf7de1b | 2244 | debugs(11,5, HERE << serverConnection); |
39cb8c41 AR |
2245 | |
2246 | // do we need to write something after the last body byte? | |
e31a1e67 | 2247 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2248 | return; |
e31a1e67 | 2249 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2250 | return; |
aa49962c | 2251 | |
39cb8c41 | 2252 | sendComplete(); |
94439e4e | 2253 | } |
2254 | ||
5f8252d2 | 2255 | // more origin request body data is available |
2bb867b5 | 2256 | void |
5f8252d2 | 2257 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2258 | { |
6b679a01 | 2259 | if (eof || !Comm::IsConnOpen(serverConnection)) { |
5f8252d2 | 2260 | // XXX: we should check this condition in other callbacks then! |
2261 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2262 | // as a body consumer when the above condition(s) are detected. | |
2bb867b5 | 2263 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2264 | return; |
2265 | } | |
62e76326 | 2266 | |
5f8252d2 | 2267 | assert(requestBodySource != NULL); |
fc68f6b1 | 2268 | |
5f8252d2 | 2269 | if (requestBodySource->buf().hasContent()) { |
2270 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2271 | |
2bb867b5 | 2272 | if (flags.headers_parsed && !flags.abuse_detected) { |
2273 | flags.abuse_detected = 1; | |
e24f13cd | 2274 | debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2275 | |
585ab260 | 2276 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
8d71285d | 2277 | serverConnection->close(); |
21b92762 | 2278 | return; |
2279 | } | |
2280 | } | |
b6a2f15e | 2281 | } |
5f8252d2 | 2282 | |
2283 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2284 | } |
2285 | ||
5f8252d2 | 2286 | // premature end of the request body |
2bb867b5 | 2287 | void |
5f8252d2 | 2288 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2289 | { |
5f8252d2 | 2290 | ServerStateData::handleRequestBodyProducerAborted(); |
64b66b76 | 2291 | if (entry->isEmpty()) { |
25b481e6 | 2292 | debugs(11, 3, "request body aborted: " << serverConnection); |
64b66b76 | 2293 | ErrorState *err; |
8b997339 AR |
2294 | // We usually get here when ICAP REQMOD aborts during body processing. |
2295 | // We might also get here if client-side aborts, but then our response | |
2296 | // should not matter because either client-side will provide its own or | |
2297 | // there will be no response at all (e.g., if the the client has left). | |
2298 | err = errorCon(ERR_ICAP_FAILURE, HTTP_INTERNAL_SERVER_ERROR, fwd->request); | |
2299 | err->xerrno = ERR_DETAIL_SRV_REQMOD_REQ_BODY; | |
64b66b76 CT |
2300 | fwd->fail(err); |
2301 | } | |
2302 | ||
39cb8c41 | 2303 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2304 | } |
2305 | ||
5f8252d2 | 2306 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2307 | void |
dc56a9b1 | 2308 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2309 | { |
dc56a9b1 | 2310 | if (io.size > 0) |
2311 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2312 | |
dc56a9b1 | 2313 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2314 | } |
3b299123 | 2315 | |
5f8252d2 | 2316 | // Quickly abort the transaction |
2317 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2318 | // including canceling close handlers | |
2319 | void | |
2320 | HttpStateData::abortTransaction(const char *reason) | |
2321 | { | |
2322 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
9cf7de1b | 2323 | "; " << serverConnection << ", this " << this); |
fc68f6b1 | 2324 | |
be364179 | 2325 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d | 2326 | serverConnection->close(); |
3e8c047e | 2327 | return; |
c23f0c74 | 2328 | } |
3e8c047e | 2329 | |
2330 | fwd->handleUnregisteredServerEnd(); | |
dc56a9b1 | 2331 | deleteThis("HttpStateData::abortTransaction"); |
54220df8 | 2332 | } |