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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" | |
44 | #include "auth/UserRequest.h" | |
655daa06 | 45 | #include "base/AsyncJobCalls.h" |
3d93a84d | 46 | #include "base/TextException.h" |
25f98340 | 47 | #include "base64.h" |
8d71285d | 48 | #include "comm/Connection.h" |
9ca29d23 AJ |
49 | #if DELAY_POOLS |
50 | #include "DelayPools.h" | |
51 | #endif | |
aa839030 | 52 | #include "errorpage.h" |
9ca29d23 | 53 | #include "fde.h" |
e6ccf245 | 54 | #include "http.h" |
655daa06 | 55 | #include "HttpControlMsg.h" |
528b2c61 | 56 | #include "HttpHdrContRange.h" |
b19dd748 | 57 | #include "HttpHdrSc.h" |
58 | #include "HttpHdrScTarget.h" | |
9ca29d23 AJ |
59 | #include "HttpReply.h" |
60 | #include "HttpRequest.h" | |
61 | #include "MemBuf.h" | |
62 | #include "MemObject.h" | |
63 | #include "protos.h" | |
1fa9b1a7 | 64 | #include "rfc1738.h" |
985c86bc | 65 | #include "SquidTime.h" |
9ca29d23 | 66 | #include "Store.h" |
af0bb8e5 | 67 | |
9ca29d23 | 68 | |
af0bb8e5 | 69 | #define SQUID_ENTER_THROWING_CODE() try { |
70 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
71 | status = true; \ | |
72 | } \ | |
0a8bbeeb AR |
73 | catch (const std::exception &e) { \ |
74 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 75 | status = false; \ |
9e008dda | 76 | } |
e6ccf245 | 77 | |
2afaba07 | 78 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 79 | |
6bf8443a | 80 | static const char *const crlf = "\r\n"; |
4db43fab | 81 | |
f9cece6e | 82 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
9e498bfb AJ |
83 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, HttpRequest * request, const HttpRequest * orig_request, |
84 | HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags); | |
528b2c61 | 85 | |
dc56a9b1 | 86 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
e1381638 AJ |
87 | lastChunk(0), header_bytes_read(0), reply_bytes_read(0), |
88 | body_bytes_truncated(0), httpChunkDecoder(NULL) | |
2bb867b5 | 89 | { |
90 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 91 | ignoreCacheControl = false; |
92 | surrogateNoStore = false; | |
8d71285d | 93 | serverConnection = fwd->serverConnection(); |
a3d50c30 | 94 | readBuf = new MemBuf; |
4b6af349 | 95 | readBuf->init(); |
6dd9f4bd | 96 | orig_request = HTTPMSGLOCK(fwd->request); |
a3d50c30 | 97 | |
3ff65596 AR |
98 | // reset peer response time stats for %<pt |
99 | orig_request->hier.peer_http_request_sent.tv_sec = 0; | |
100 | orig_request->hier.peer_http_request_sent.tv_usec = 0; | |
101 | ||
5229395c AJ |
102 | if (fwd->serverConnection() != NULL) |
103 | _peer = cbdataReference(fwd->serverConnection()->getPeer()); /* might be NULL */ | |
a3d50c30 | 104 | |
105 | if (_peer) { | |
106 | const char *url; | |
107 | ||
108 | if (_peer->options.originserver) | |
d53b3f6d | 109 | url = orig_request->urlpath.termedBuf(); |
a3d50c30 | 110 | else |
3900307b | 111 | url = entry->url(); |
a3d50c30 | 112 | |
cfd66529 | 113 | HttpRequest * proxy_req = new HttpRequest(orig_request->method, orig_request->protocol, url); |
a3d50c30 | 114 | |
cc192b50 | 115 | proxy_req->SetHost(_peer->host); |
a3d50c30 | 116 | |
117 | proxy_req->port = _peer->http_port; | |
118 | ||
119 | proxy_req->flags = orig_request->flags; | |
120 | ||
121 | proxy_req->lastmod = orig_request->lastmod; | |
122 | ||
123 | proxy_req->flags.proxying = 1; | |
124 | ||
6dd9f4bd | 125 | HTTPMSGUNLOCK(request); |
253caccb | 126 | |
6dd9f4bd | 127 | request = HTTPMSGLOCK(proxy_req); |
a3d50c30 | 128 | |
129 | /* | |
130 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
131 | * We might end up getting the object from somewhere else if, | |
132 | * for example, the request to this neighbor fails. | |
133 | */ | |
134 | if (_peer->options.proxy_only) | |
d88e3c49 | 135 | entry->releaseRequest(); |
a3d50c30 | 136 | |
137 | #if DELAY_POOLS | |
138 | ||
139 | entry->setNoDelay(_peer->options.no_delay); | |
140 | ||
141 | #endif | |
a3d50c30 | 142 | } |
143 | ||
144 | /* | |
145 | * register the handler to free HTTP state data when the FD closes | |
146 | */ | |
dc56a9b1 | 147 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
d1c7f781 | 148 | closeHandler = JobCallback(9, 5, Dialer, this, HttpStateData::httpStateConnClosed); |
8d71285d | 149 | comm_add_close_handler(serverConnection->fd, closeHandler); |
2bb867b5 | 150 | } |
b8d8561b | 151 | |
2afaba07 | 152 | HttpStateData::~HttpStateData() |
f5558c95 | 153 | { |
253caccb | 154 | /* |
3b299123 | 155 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 156 | */ |
157 | ||
2afaba07 | 158 | if (!readBuf->isNull()) |
159 | readBuf->clean(); | |
62e76326 | 160 | |
2afaba07 | 161 | delete readBuf; |
162 | ||
9e008dda AJ |
163 | if (httpChunkDecoder) |
164 | delete httpChunkDecoder; | |
af0bb8e5 | 165 | |
6dd9f4bd | 166 | HTTPMSGUNLOCK(orig_request); |
2afaba07 | 167 | |
5229395c AJ |
168 | cbdataReferenceDone(_peer); |
169 | ||
9cf7de1b | 170 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; " << serverConnection); |
5f8252d2 | 171 | } |
172 | ||
6b679a01 | 173 | const Comm::ConnectionPointer & |
fc68f6b1 | 174 | HttpStateData::dataDescriptor() const |
175 | { | |
6b679a01 | 176 | return serverConnection; |
2afaba07 | 177 | } |
8d71285d | 178 | |
dc56a9b1 | 179 | /* |
2afaba07 | 180 | static void |
181 | httpStateFree(int fd, void *data) | |
182 | { | |
183 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
bf8fe701 | 184 | debugs(11, 5, "httpStateFree: FD " << fd << ", httpState=" << data); |
5f8252d2 | 185 | delete httpState; |
dc56a9b1 | 186 | }*/ |
187 | ||
9e008dda | 188 | void |
dc56a9b1 | 189 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
190 | { | |
191 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
192 | deleteThis("HttpStateData::httpStateConnClosed"); | |
f5558c95 | 193 | } |
194 | ||
b8d8561b | 195 | int |
60745f24 | 196 | httpCachable(const HttpRequestMethod& method) |
090089c4 | 197 | { |
090089c4 | 198 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 199 | |
9e008dda | 200 | // TODO: replase to HttpRequestMethod::isCachable() ? |
6eb42cae | 201 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 202 | return 0; |
203 | ||
090089c4 | 204 | /* else cachable */ |
205 | return 1; | |
206 | } | |
207 | ||
dc56a9b1 | 208 | void |
209 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 210 | { |
9cf7de1b | 211 | debugs(11, 4, HERE << serverConnection << ": '" << entry->url() << "'" ); |
62e76326 | 212 | |
12158bdc | 213 | if (entry->store_status == STORE_PENDING) { |
dc56a9b1 | 214 | fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 215 | } |
62e76326 | 216 | |
8d71285d | 217 | serverConnection->close(); |
090089c4 | 218 | } |
219 | ||
f9cece6e | 220 | static void |
221 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
222 | { | |
914b89a2 | 223 | int remove = 0; |
7e3ce7b9 | 224 | int forbidden = 0; |
f9cece6e | 225 | StoreEntry *pe; |
62e76326 | 226 | |
d46a87a8 | 227 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 228 | return; |
229 | ||
f9cece6e | 230 | switch (status) { |
62e76326 | 231 | |
f9cece6e | 232 | case HTTP_OK: |
62e76326 | 233 | |
f9cece6e | 234 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 235 | |
f9cece6e | 236 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 237 | |
f9cece6e | 238 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 239 | |
f9cece6e | 240 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 241 | |
f9cece6e | 242 | case HTTP_GONE: |
62e76326 | 243 | |
7e3ce7b9 | 244 | case HTTP_NOT_FOUND: |
914b89a2 | 245 | remove = 1; |
62e76326 | 246 | |
247 | break; | |
248 | ||
7e3ce7b9 | 249 | case HTTP_FORBIDDEN: |
62e76326 | 250 | |
7e3ce7b9 | 251 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 252 | forbidden = 1; |
253 | ||
254 | break; | |
255 | ||
f9cece6e | 256 | #if WORK_IN_PROGRESS |
62e76326 | 257 | |
c8fd0193 | 258 | case HTTP_UNAUTHORIZED: |
62e76326 | 259 | forbidden = 1; |
260 | ||
261 | break; | |
262 | ||
f9cece6e | 263 | #endif |
62e76326 | 264 | |
f9cece6e | 265 | default: |
7e3ce7b9 | 266 | #if QUESTIONABLE |
62e76326 | 267 | /* |
268 | * Any 2xx response should eject previously cached entities... | |
269 | */ | |
abb929f0 | 270 | |
62e76326 | 271 | if (status >= 200 && status < 300) |
914b89a2 | 272 | remove = 1; |
62e76326 | 273 | |
7e3ce7b9 | 274 | #endif |
62e76326 | 275 | |
276 | break; | |
f9cece6e | 277 | } |
62e76326 | 278 | |
914b89a2 | 279 | if (!remove && !forbidden) |
62e76326 | 280 | return; |
281 | ||
f9cece6e | 282 | assert(e->mem_obj); |
62e76326 | 283 | |
f66a9ef4 | 284 | if (e->mem_obj->request) |
62e76326 | 285 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 286 | else |
62e76326 | 287 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
288 | ||
f66a9ef4 | 289 | if (pe != NULL) { |
62e76326 | 290 | assert(e != pe); |
d9129474 | 291 | #if USE_HTCP |
8dceeee3 | 292 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 293 | #endif |
5f33b71d | 294 | pe->release(); |
0856d155 | 295 | } |
62e76326 | 296 | |
914b89a2 | 297 | /** \par |
7e3ce7b9 | 298 | * Also remove any cached HEAD response in case the object has |
299 | * changed. | |
300 | */ | |
f66a9ef4 | 301 | if (e->mem_obj->request) |
62e76326 | 302 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 303 | else |
62e76326 | 304 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
305 | ||
f66a9ef4 | 306 | if (pe != NULL) { |
62e76326 | 307 | assert(e != pe); |
d9129474 | 308 | #if USE_HTCP |
8dceeee3 | 309 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 310 | #endif |
5f33b71d | 311 | pe->release(); |
7e3ce7b9 | 312 | } |
f9cece6e | 313 | } |
314 | ||
43ae1d95 | 315 | void |
316 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
317 | { | |
43ae1d95 | 318 | if (request->flags.accelerated && reply->surrogate_control) { |
45cca89d | 319 | HttpHdrScTarget *sctusable = httpHdrScGetMergedTarget(reply->surrogate_control, Config.Accel.surrogate_id); |
43ae1d95 | 320 | |
321 | if (sctusable) { | |
322 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
323 | (Config.onoff.surrogate_is_remote | |
324 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
325 | surrogateNoStore = true; | |
5ed72359 | 326 | entry->makePrivate(); |
43ae1d95 | 327 | } |
328 | ||
329 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
330 | * accelerated request or not... | |
45cca89d | 331 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 332 | */ |
333 | if (sctusable->max_age != -1) { | |
334 | if (sctusable->max_age < sctusable->max_stale) | |
335 | reply->expires = reply->date + sctusable->max_age; | |
336 | else | |
337 | reply->expires = reply->date + sctusable->max_stale; | |
338 | ||
339 | /* And update the timestamps */ | |
3900307b | 340 | entry->timestampsSet(); |
43ae1d95 | 341 | } |
342 | ||
343 | /* We ignore cache-control directives as per the Surrogate specification */ | |
344 | ignoreCacheControl = true; | |
345 | ||
346 | httpHdrScTargetDestroy(sctusable); | |
347 | } | |
348 | } | |
43ae1d95 | 349 | } |
350 | ||
924f73bc | 351 | int |
352 | HttpStateData::cacheableReply() | |
c54e9052 | 353 | { |
585ab260 | 354 | HttpReply const *rep = finalReply(); |
528b2c61 | 355 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 356 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 357 | const char *v; |
626096be | 358 | #if USE_HTTP_VIOLATIONS |
62e76326 | 359 | |
38f9c547 | 360 | const refresh_t *R = NULL; |
b6445726 | 361 | |
346be6ad | 362 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 363 | * and then checks if the specified flag is set. The main purpose |
626096be | 364 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 365 | * condition |
366 | */ | |
367 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 368 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
369 | (R && R->flags.flag)) | |
b445957e | 370 | #else |
371 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 372 | #endif |
43ae1d95 | 373 | |
38f9c547 | 374 | if (surrogateNoStore) |
62e76326 | 375 | return 0; |
376 | ||
8466a4af AR |
377 | // RFC 2616: do not cache replies to responses with no-store CC directive |
378 | if (request && request->cache_control && | |
ab745b44 A |
379 | EBIT_TEST(request->cache_control->mask, CC_NO_STORE) && |
380 | !REFRESH_OVERRIDE(ignore_no_store)) | |
8466a4af AR |
381 | return 0; |
382 | ||
924f73bc | 383 | if (!ignoreCacheControl) { |
38f9c547 | 384 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 385 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 386 | return 0; |
387 | } | |
388 | ||
389 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 390 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 391 | return 0; |
392 | } | |
393 | ||
394 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 395 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 396 | return 0; |
397 | } | |
43ae1d95 | 398 | } |
399 | ||
d67acb4e | 400 | if (request->flags.auth || request->flags.auth_sent) { |
62e76326 | 401 | /* |
402 | * Responses to requests with authorization may be cached | |
403 | * only if a Cache-Control: public reply header is present. | |
404 | * RFC 2068, sec 14.9.4 | |
405 | */ | |
406 | ||
38f9c547 | 407 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 408 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 409 | return 0; |
410 | } | |
a6dfe2d9 | 411 | } |
62e76326 | 412 | |
c68e9c6b | 413 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
414 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 415 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 416 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 417 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 418 | s.clean(); |
62e76326 | 419 | |
38f9c547 | 420 | if (no_cache) { |
b6445726 | 421 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 422 | return 0; |
423 | } | |
c68e9c6b | 424 | } |
62e76326 | 425 | |
c68e9c6b | 426 | /* |
427 | * The "multipart/x-mixed-replace" content type is used for | |
428 | * continuous push replies. These are generally dynamic and | |
429 | * probably should not be cachable | |
430 | */ | |
a9925b40 | 431 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 432 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
433 | return 0; | |
434 | ||
585ab260 | 435 | switch (rep->sline.status) { |
62e76326 | 436 | /* Responses that are cacheable */ |
437 | ||
19a04dac | 438 | case HTTP_OK: |
62e76326 | 439 | |
19a04dac | 440 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 441 | |
19a04dac | 442 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 443 | |
19a04dac | 444 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 445 | |
19a04dac | 446 | case HTTP_GONE: |
62e76326 | 447 | /* |
448 | * Don't cache objects that need to be refreshed on next request, | |
449 | * unless we know how to refresh it. | |
450 | */ | |
451 | ||
3d8b6ba4 | 452 | if (!refreshIsCachable(entry) && !REFRESH_OVERRIDE(store_stale)) { |
bf8fe701 | 453 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 454 | return 0; |
ca34dacd | 455 | } else |
62e76326 | 456 | return 1; |
457 | ||
62e76326 | 458 | /* NOTREACHED */ |
459 | break; | |
460 | ||
461 | /* Responses that only are cacheable if the server says so */ | |
462 | ||
19a04dac | 463 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 464 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 465 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 466 | return 1; |
467 | else | |
468 | return 0; | |
469 | ||
470 | /* NOTREACHED */ | |
471 | break; | |
472 | ||
473 | /* Errors can be negatively cached */ | |
474 | ||
19a04dac | 475 | case HTTP_NO_CONTENT: |
62e76326 | 476 | |
19a04dac | 477 | case HTTP_USE_PROXY: |
62e76326 | 478 | |
19a04dac | 479 | case HTTP_BAD_REQUEST: |
62e76326 | 480 | |
19a04dac | 481 | case HTTP_FORBIDDEN: |
62e76326 | 482 | |
19a04dac | 483 | case HTTP_NOT_FOUND: |
62e76326 | 484 | |
19a04dac | 485 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 488 | |
19a04dac | 489 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 490 | |
19a04dac | 491 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 492 | |
19a04dac | 493 | case HTTP_BAD_GATEWAY: |
62e76326 | 494 | |
19a04dac | 495 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 496 | |
19a04dac | 497 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 498 | return -1; |
499 | ||
500 | /* NOTREACHED */ | |
501 | break; | |
502 | ||
503 | /* Some responses can never be cached */ | |
504 | ||
0cdcddb9 | 505 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 506 | |
19a04dac | 507 | case HTTP_SEE_OTHER: |
62e76326 | 508 | |
19a04dac | 509 | case HTTP_NOT_MODIFIED: |
62e76326 | 510 | |
19a04dac | 511 | case HTTP_UNAUTHORIZED: |
62e76326 | 512 | |
19a04dac | 513 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 514 | |
0cdcddb9 | 515 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 516 | |
517 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 518 | |
519 | case HTTP_PAYMENT_REQUIRED: | |
520 | case HTTP_NOT_ACCEPTABLE: | |
521 | case HTTP_REQUEST_TIMEOUT: | |
522 | case HTTP_CONFLICT: | |
523 | case HTTP_LENGTH_REQUIRED: | |
524 | case HTTP_PRECONDITION_FAILED: | |
525 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
526 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
527 | case HTTP_UNPROCESSABLE_ENTITY: | |
528 | case HTTP_LOCKED: | |
529 | case HTTP_FAILED_DEPENDENCY: | |
530 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 531 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
532 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 533 | |
62e76326 | 534 | return 0; |
535 | ||
41217979 AJ |
536 | default: |
537 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
538 | debugs (11, 3, HERE << "Unknown HTTP status code " << rep->sline.status << ". Not cacheable."); | |
62e76326 | 539 | |
540 | return 0; | |
541 | ||
542 | /* NOTREACHED */ | |
543 | break; | |
c54e9052 | 544 | } |
62e76326 | 545 | |
79d39a72 | 546 | /* NOTREACHED */ |
c54e9052 | 547 | } |
090089c4 | 548 | |
f66a9ef4 | 549 | /* |
9e008dda | 550 | * For Vary, store the relevant request headers as |
f66a9ef4 | 551 | * virtual headers in the reply |
552 | * Returns false if the variance cannot be stored | |
553 | */ | |
554 | const char * | |
190154cf | 555 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 556 | { |
30abd221 | 557 | String vary, hdr; |
f66a9ef4 | 558 | const char *pos = NULL; |
559 | const char *item; | |
560 | const char *value; | |
561 | int ilen; | |
30abd221 | 562 | static String vstr; |
f66a9ef4 | 563 | |
30abd221 | 564 | vstr.clean(); |
a9925b40 | 565 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 566 | |
f66a9ef4 | 567 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 568 | char *name = (char *)xmalloc(ilen + 1); |
569 | xstrncpy(name, item, ilen + 1); | |
570 | Tolower(name); | |
9776e3cc | 571 | |
572 | if (strcmp(name, "*") == 0) { | |
573 | /* Can not handle "Vary: *" withtout ETag support */ | |
574 | safe_free(name); | |
30abd221 | 575 | vstr.clean(); |
9776e3cc | 576 | break; |
577 | } | |
578 | ||
62e76326 | 579 | strListAdd(&vstr, name, ','); |
a9925b40 | 580 | hdr = request->header.getByName(name); |
62e76326 | 581 | safe_free(name); |
d53b3f6d | 582 | value = hdr.termedBuf(); |
62e76326 | 583 | |
584 | if (value) { | |
585 | value = rfc1738_escape_part(value); | |
586 | vstr.append("=\"", 2); | |
587 | vstr.append(value); | |
588 | vstr.append("\"", 1); | |
589 | } | |
590 | ||
30abd221 | 591 | hdr.clean(); |
f66a9ef4 | 592 | } |
62e76326 | 593 | |
30abd221 | 594 | vary.clean(); |
f66a9ef4 | 595 | #if X_ACCELERATOR_VARY |
62e76326 | 596 | |
aa38be4a | 597 | pos = NULL; |
a9925b40 | 598 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 599 | |
f66a9ef4 | 600 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 601 | char *name = (char *)xmalloc(ilen + 1); |
602 | xstrncpy(name, item, ilen + 1); | |
603 | Tolower(name); | |
604 | strListAdd(&vstr, name, ','); | |
a9925b40 | 605 | hdr = request->header.getByName(name); |
62e76326 | 606 | safe_free(name); |
d53b3f6d | 607 | value = hdr.termedBuf(); |
62e76326 | 608 | |
609 | if (value) { | |
610 | value = rfc1738_escape_part(value); | |
611 | vstr.append("=\"", 2); | |
612 | vstr.append(value); | |
613 | vstr.append("\"", 1); | |
614 | } | |
615 | ||
30abd221 | 616 | hdr.clean(); |
f66a9ef4 | 617 | } |
62e76326 | 618 | |
30abd221 | 619 | vary.clean(); |
f66a9ef4 | 620 | #endif |
62e76326 | 621 | |
d53b3f6d FC |
622 | debugs(11, 3, "httpMakeVaryMark: " << vstr); |
623 | return vstr.termedBuf(); | |
f66a9ef4 | 624 | } |
625 | ||
2afaba07 | 626 | void |
627 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
628 | { | |
629 | if (flags.keepalive) | |
630 | if (_peer) | |
631 | _peer->stats.n_keepalives_sent++; | |
632 | ||
633 | if (reply->keep_alive) { | |
634 | if (_peer) | |
635 | _peer->stats.n_keepalives_recv++; | |
636 | ||
af6a12ee AJ |
637 | if (Config.onoff.detect_broken_server_pconns |
638 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
bf8fe701 | 639 | debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
640 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); | |
2afaba07 | 641 | flags.keepalive_broken = 1; |
642 | } | |
643 | } | |
644 | } | |
645 | ||
646 | void | |
647 | HttpStateData::checkDateSkew(HttpReply *reply) | |
648 | { | |
649 | if (reply->date > -1 && !_peer) { | |
650 | int skew = abs((int)(reply->date - squid_curtime)); | |
651 | ||
652 | if (skew > 86400) | |
cc192b50 | 653 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 654 | } |
655 | } | |
656 | ||
073ba374 | 657 | /** |
4eb368f9 | 658 | * This creates the error page itself.. its likely |
659 | * that the forward ported reply header max size patch | |
660 | * generates non http conformant error pages - in which | |
661 | * case the errors where should be 'BAD_GATEWAY' etc | |
662 | */ | |
b8d8561b | 663 | void |
2afaba07 | 664 | HttpStateData::processReplyHeader() |
f5558c95 | 665 | { |
073ba374 | 666 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 AJ |
667 | |
668 | /* NP: all exit points to this function MUST call ctx_exit(ctx) */ | |
82384411 | 669 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
859f1666 | 670 | |
bf8fe701 | 671 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 672 | |
1a98175f | 673 | assert(!flags.headers_parsed); |
62e76326 | 674 | |
859f1666 AJ |
675 | if (!readBuf->hasContent()) { |
676 | ctx_exit(ctx); | |
b73a07d6 | 677 | return; |
859f1666 | 678 | } |
b73a07d6 | 679 | |
2afaba07 | 680 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 681 | |
585ab260 | 682 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 683 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 684 | |
e77d7ef0 | 685 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0 && strncmp(readBuf->content(), "ICY", 3) != 0) { |
9e008dda AJ |
686 | MemBuf *mb; |
687 | HttpReply *tmprep = new HttpReply; | |
11992b6f | 688 | tmprep->setHeaders(HTTP_OK, "Gatewaying", NULL, -1, -1, -1); |
9e008dda AJ |
689 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); |
690 | mb = tmprep->pack(); | |
691 | newrep->parse(mb, eof, &error); | |
ddbe383d | 692 | delete mb; |
9e008dda AJ |
693 | delete tmprep; |
694 | } else { | |
695 | if (!parsed && error > 0) { // unrecoverable parsing error | |
696 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
697 | flags.headers_parsed = 1; | |
871c031f | 698 | newrep->sline.version = HttpVersion(1,1); |
9e008dda AJ |
699 | newrep->sline.status = error; |
700 | HttpReply *vrep = setVirginReply(newrep); | |
701 | entry->replaceHttpReply(vrep); | |
702 | ctx_exit(ctx); | |
703 | return; | |
704 | } | |
705 | ||
706 | if (!parsed) { // need more data | |
707 | assert(!error); | |
708 | assert(!eof); | |
709 | delete newrep; | |
710 | ctx_exit(ctx); | |
711 | return; | |
712 | } | |
713 | ||
714 | debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------"); | |
715 | ||
716 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
717 | readBuf->consume(header_bytes_read); | |
f5558c95 | 718 | } |
62e76326 | 719 | |
c679653d | 720 | newrep->removeStaleWarnings(); |
3d9e71e6 | 721 | |
3d9e71e6 | 722 | if (newrep->sline.protocol == PROTO_HTTP && newrep->sline.status >= 100 && newrep->sline.status < 200) { |
655daa06 | 723 | handle1xx(newrep); |
3d9e71e6 | 724 | ctx_exit(ctx); |
3d9e71e6 AJ |
725 | return; |
726 | } | |
727 | ||
af0bb8e5 | 728 | flags.chunked = 0; |
c3d0ba0c | 729 | if (newrep->sline.protocol == PROTO_HTTP && newrep->header.chunked()) { |
9e008dda AJ |
730 | flags.chunked = 1; |
731 | httpChunkDecoder = new ChunkedCodingParser; | |
af0bb8e5 | 732 | } |
733 | ||
9e008dda AJ |
734 | if (!peerSupportsConnectionPinning()) |
735 | orig_request->flags.connection_auth_disabled = 1; | |
d67acb4e | 736 | |
585ab260 | 737 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 738 | flags.headers_parsed = 1; |
739 | ||
585ab260 | 740 | keepaliveAccounting(vrep); |
47ac2ebe | 741 | |
585ab260 | 742 | checkDateSkew(vrep); |
47ac2ebe | 743 | |
585ab260 | 744 | processSurrogateControl (vrep); |
528b2c61 | 745 | |
073ba374 | 746 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 747 | * Parse the header and remove all referenced headers |
748 | */ | |
749 | ||
3ff65596 AR |
750 | orig_request->hier.peer_reply_status = newrep->sline.status; |
751 | ||
2afaba07 | 752 | ctx_exit(ctx); |
753 | } | |
754 | ||
655daa06 AR |
755 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
756 | void | |
757 | HttpStateData::handle1xx(HttpReply *reply) | |
758 | { | |
759 | HttpMsgPointerT<HttpReply> msg(reply); // will destroy reply if unused | |
760 | ||
761 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
762 | Must(!flags.handling1xx); | |
763 | flags.handling1xx = true; | |
764 | ||
765 | if (!orig_request->canHandle1xx()) { | |
766 | debugs(11, 2, HERE << "ignoring client-unsupported 1xx"); | |
767 | proceedAfter1xx(); | |
768 | return; | |
769 | } | |
770 | ||
771 | #if USE_HTTP_VIOLATIONS | |
772 | // check whether the 1xx response forwarding is allowed by squid.conf | |
773 | if (Config.accessList.reply) { | |
774 | ACLFilledChecklist ch(Config.accessList.reply, request, NULL); | |
775 | ch.reply = HTTPMSGLOCK(reply); | |
776 | if (!ch.fastCheck()) { // TODO: support slow lookups? | |
777 | debugs(11, 3, HERE << "ignoring denied 1xx"); | |
778 | proceedAfter1xx(); | |
779 | return; | |
de48b288 | 780 | } |
655daa06 AR |
781 | } |
782 | #endif // USE_HTTP_VIOLATIONS | |
783 | ||
784 | debugs(11, 2, HERE << "forwarding 1xx to client"); | |
785 | ||
786 | // the Sink will use this to call us back after writing 1xx to the client | |
787 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
788 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 789 | HttpStateData::proceedAfter1xx); |
655daa06 AR |
790 | CallJobHere1(11, 4, orig_request->clientConnection, ConnStateData, |
791 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); | |
792 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
793 | // will terminate due to an aborted store entry or another similar error. | |
794 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
795 | // for similar reasons without a 1xx response. | |
796 | } | |
797 | ||
798 | /// restores state and resumes processing after 1xx is ignored or forwarded | |
799 | void | |
800 | HttpStateData::proceedAfter1xx() | |
801 | { | |
802 | Must(flags.handling1xx); | |
803 | ||
804 | debugs(11, 2, HERE << "consuming " << header_bytes_read << | |
de48b288 | 805 | " header and " << reply_bytes_read << " body bytes read after 1xx"); |
655daa06 AR |
806 | header_bytes_read = 0; |
807 | reply_bytes_read = 0; | |
808 | ||
809 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); | |
810 | } | |
811 | ||
812 | ||
d67acb4e AJ |
813 | /** |
814 | * returns true if the peer can support connection pinning | |
815 | */ | |
816 | bool HttpStateData::peerSupportsConnectionPinning() const | |
817 | { | |
818 | const HttpReply *rep = entry->mem_obj->getReply(); | |
819 | const HttpHeader *hdr = &rep->header; | |
820 | bool rc; | |
821 | String header; | |
822 | ||
823 | if (!_peer) | |
9e008dda AJ |
824 | return true; |
825 | ||
826 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
827 | connections) return false |
828 | */ | |
829 | if (!_peer->connection_auth) | |
9e008dda | 830 | return false; |
d67acb4e | 831 | |
9e008dda | 832 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
833 | is not unauthorized, so the related connection can be pinned |
834 | */ | |
835 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
836 | return true; |
837 | ||
838 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
839 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
840 | connections |
841 | */ | |
842 | if (_peer->connection_auth == 1) | |
9e008dda | 843 | return true; |
d67acb4e | 844 | |
9e008dda AJ |
845 | /*At this point peer has configured with "connection-auth=auto" |
846 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
847 | to allow pinned connections or not |
848 | */ | |
849 | ||
9e008dda | 850 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
851 | pinning (squid 2.6 behaviour) |
852 | */ | |
853 | if (_peer->options.originserver) | |
9e008dda | 854 | return true; |
d67acb4e AJ |
855 | |
856 | /*if the connections it is already pinned it is OK*/ | |
857 | if (request->flags.pinned) | |
9e008dda AJ |
858 | return true; |
859 | ||
860 | /*Allow pinned connections only if the Proxy-support header exists in | |
861 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
862 | which means that the peer supports connection pinning. |
863 | */ | |
864 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 865 | return false; |
d67acb4e AJ |
866 | |
867 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
868 | /* XXX This ought to be done in a case-insensitive manner */ | |
d53b3f6d | 869 | rc = (strstr(header.termedBuf(), "Session-Based-Authentication") != NULL); |
d67acb4e AJ |
870 | |
871 | return rc; | |
872 | } | |
873 | ||
5f8252d2 | 874 | // Called when we parsed (and possibly adapted) the headers but |
875 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 876 | void |
877 | HttpStateData::haveParsedReplyHeaders() | |
878 | { | |
c1520b67 AJ |
879 | ServerStateData::haveParsedReplyHeaders(); |
880 | ||
2afaba07 | 881 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 882 | HttpReply *rep = finalReply(); |
2afaba07 | 883 | |
585ab260 | 884 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
885 | rep->content_range) | |
886 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 887 | |
3900307b | 888 | entry->timestampsSet(); |
62e76326 | 889 | |
9bc73deb | 890 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 891 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 892 | |
9bc73deb | 893 | if (neighbors_do_private_keys) |
585ab260 | 894 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 895 | |
585ab260 | 896 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 897 | #if X_ACCELERATOR_VARY |
585ab260 | 898 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 899 | #endif |
4b44c907 | 900 | ) { |
585ab260 | 901 | const char *vary = httpMakeVaryMark(orig_request, rep); |
4b44c907 | 902 | |
903 | if (!vary) { | |
5ed72359 | 904 | entry->makePrivate(); |
d7d3253b AJ |
905 | if (!fwd->reforwardableStatus(rep->sline.status)) |
906 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); | |
4b44c907 | 907 | goto no_cache; |
62e76326 | 908 | } |
909 | ||
4b44c907 | 910 | entry->mem_obj->vary_headers = xstrdup(vary); |
911 | } | |
912 | ||
2afaba07 | 913 | #if WIP_FWD_LOG |
914 | fwdStatus(fwd, s); | |
915 | ||
916 | #endif | |
917 | /* | |
918 | * If its not a reply that we will re-forward, then | |
919 | * allow the client to get it. | |
920 | */ | |
585ab260 | 921 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 922 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
923 | ||
4b44c907 | 924 | switch (cacheableReply()) { |
925 | ||
926 | case 1: | |
5ed72359 | 927 | entry->makePublic(); |
62e76326 | 928 | break; |
929 | ||
9bc73deb | 930 | case 0: |
5ed72359 | 931 | entry->makePrivate(); |
62e76326 | 932 | break; |
933 | ||
9bc73deb | 934 | case -1: |
4b44c907 | 935 | |
626096be | 936 | #if USE_HTTP_VIOLATIONS |
4b44c907 | 937 | if (Config.negativeTtl > 0) |
5ed72359 | 938 | entry->cacheNegatively(); |
4b44c907 | 939 | else |
ac9cc053 | 940 | #endif |
5ed72359 | 941 | entry->makePrivate(); |
4b44c907 | 942 | |
62e76326 | 943 | break; |
944 | ||
9bc73deb | 945 | default: |
62e76326 | 946 | assert(0); |
4b44c907 | 947 | |
62e76326 | 948 | break; |
9bc73deb | 949 | } |
62e76326 | 950 | |
4b44c907 | 951 | no_cache: |
952 | ||
585ab260 | 953 | if (!ignoreCacheControl && rep->cache_control) { |
7948b784 | 954 | if (EBIT_TEST(rep->cache_control->mask, CC_PROXY_REVALIDATE) || |
477438e1 A |
955 | EBIT_TEST(rep->cache_control->mask, CC_MUST_REVALIDATE) || |
956 | EBIT_TEST(rep->cache_control->mask, CC_S_MAXAGE)) | |
62e76326 | 957 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 958 | } |
62e76326 | 959 | |
c3609322 | 960 | #if HEADERS_LOG |
585ab260 | 961 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 962 | |
c3609322 | 963 | #endif |
5f8252d2 | 964 | |
965 | ctx_exit(ctx); | |
f5558c95 | 966 | } |
967 | ||
528b2c61 | 968 | HttpStateData::ConnectionStatus |
969 | HttpStateData::statusIfComplete() const | |
603a02fd | 970 | { |
585ab260 | 971 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
972 | /** \par |
973 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 974 | |
2afaba07 | 975 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 976 | return COMPLETE_NONPERSISTENT_MSG; |
977 | ||
073ba374 AJ |
978 | /** \par |
979 | * If we didn't send a keep-alive request header, then this | |
978e455f | 980 | * can not be a persistent connection. |
981 | */ | |
528b2c61 | 982 | if (!flags.keepalive) |
62e76326 | 983 | return COMPLETE_NONPERSISTENT_MSG; |
984 | ||
073ba374 | 985 | /** \par |
72b63f06 | 986 | * If we haven't sent the whole request then this can not be a persistent |
987 | * connection. | |
988 | */ | |
989 | if (!flags.request_sent) { | |
60745f24 | 990 | debugs(11, 1, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(orig_request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 991 | return COMPLETE_NONPERSISTENT_MSG; |
992 | } | |
993 | ||
073ba374 | 994 | /** \par |
9f5a2895 | 995 | * What does the reply have to say about keep-alive? |
996 | */ | |
073ba374 AJ |
997 | /** |
998 | \bug XXX BUG? | |
b6a2f15e | 999 | * If the origin server (HTTP/1.0) does not send a keep-alive |
1000 | * header, but keeps the connection open anyway, what happens? | |
1001 | * We'll return here and http.c waits for an EOF before changing | |
1002 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
1003 | * and an error status code, and we might have to wait until | |
1004 | * the server times out the socket. | |
1005 | */ | |
2afaba07 | 1006 | if (!rep->keep_alive) |
528b2c61 | 1007 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 1008 | |
528b2c61 | 1009 | return COMPLETE_PERSISTENT_MSG; |
1010 | } | |
1011 | ||
1012 | HttpStateData::ConnectionStatus | |
1013 | HttpStateData::persistentConnStatus() const | |
1014 | { | |
9cf7de1b | 1015 | debugs(11, 3, HERE << serverConnection << " eof=" << eof); |
585ab260 | 1016 | const HttpReply *vrep = virginReply(); |
1017 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
62e76326 | 1018 | |
5f8252d2 | 1019 | /* If we haven't seen the end of reply headers, we are not done */ |
bf8fe701 | 1020 | debugs(11, 5, "persistentConnStatus: flags.headers_parsed=" << flags.headers_parsed); |
fc68f6b1 | 1021 | |
1a98175f | 1022 | if (!flags.headers_parsed) |
62e76326 | 1023 | return INCOMPLETE_MSG; |
1024 | ||
839291ac AJ |
1025 | if (eof) // already reached EOF |
1026 | return COMPLETE_NONPERSISTENT_MSG; | |
1027 | ||
9035d1d5 AJ |
1028 | /** \par |
1029 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1030 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 1031 | * decide if we can be persistant |
af0bb8e5 | 1032 | */ |
839291ac | 1033 | if (lastChunk && flags.chunked) |
9e008dda | 1034 | return statusIfComplete(); |
af0bb8e5 | 1035 | |
47f6e231 | 1036 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1037 | |
bf8fe701 | 1038 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1039 | |
35282fbf | 1040 | /* If the body size is unknown we must wait for EOF */ |
1041 | if (clen < 0) | |
62e76326 | 1042 | return INCOMPLETE_MSG; |
1043 | ||
9035d1d5 AJ |
1044 | /** \par |
1045 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1046 | if (clen > 0) { |
1047 | // old technique: | |
585ab260 | 1048 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 1049 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 1050 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 1051 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 1052 | |
585ab260 | 1053 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 1054 | return INCOMPLETE_MSG; |
821beb5e AR |
1055 | |
1056 | if (body_bytes_truncated > 0) // already read more than needed | |
1057 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns | |
5f8252d2 | 1058 | } |
62e76326 | 1059 | |
9035d1d5 AJ |
1060 | /** \par |
1061 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1062 | return statusIfComplete(); |
603a02fd | 1063 | } |
090089c4 | 1064 | |
2afaba07 | 1065 | /* |
1066 | * This is the callback after some data has been read from the network | |
1067 | */ | |
dc56a9b1 | 1068 | /* |
e5ee81f0 | 1069 | void |
d53b3f6d | 1070 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) |
c4b7a5a9 | 1071 | { |
1072 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
8d71285d | 1073 | assert (fd == httpState->serverConnection->fd); |
d53b3f6d | 1074 | // assert(buf == readBuf->content()); |
1d5161bd | 1075 | PROF_start(HttpStateData_readReply); |
e6edd8df | 1076 | httpState->readReply(len, flag, xerrno); |
1d5161bd | 1077 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1078 | } |
dc56a9b1 | 1079 | */ |
073ba374 | 1080 | |
2afdbf48 | 1081 | /* XXX this function is too long! */ |
c4b7a5a9 | 1082 | void |
e6edd8df | 1083 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1084 | { |
30a4f2a8 | 1085 | int bin; |
090089c4 | 1086 | int clen; |
dc56a9b1 | 1087 | int len = io.size; |
c4b7a5a9 | 1088 | |
9cf7de1b | 1089 | // assert(serverConnection->fd == io.fd); // XXX: false when closing. serverConnection-> will already be -1. |
dc56a9b1 | 1090 | |
1091 | flags.do_next_read = 0; | |
9e008dda | 1092 | |
8d71285d | 1093 | debugs(11, 5, "httpReadReply: FD " << io.fd << ": len " << len << "."); |
62e76326 | 1094 | |
7a7cc03f | 1095 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1096 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1097 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1098 | return; |
1099 | } | |
1100 | ||
e92e4e44 | 1101 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
5f8252d2 | 1102 | maybeReadVirginBody(); |
62e76326 | 1103 | return; |
e92e4e44 | 1104 | } |
c4b7a5a9 | 1105 | |
fdf55365 | 1106 | // handle I/O errors |
dc56a9b1 | 1107 | if (io.flag != COMM_OK || len < 0) { |
8d71285d | 1108 | debugs(11, 2, "httpReadReply: FD " << io.fd << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1109 | |
dc56a9b1 | 1110 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1111 | flags.do_next_read = 1; |
1112 | } else { | |
1113 | ErrorState *err; | |
1114 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
dc56a9b1 | 1115 | err->xerrno = io.xerrno; |
fdf55365 | 1116 | fwd->fail(err); |
1117 | flags.do_next_read = 0; | |
8d71285d | 1118 | serverConnection->close(); |
fdf55365 | 1119 | } |
fdf55365 | 1120 | return; |
1121 | } | |
1122 | ||
7a7cc03f | 1123 | // update I/O stats |
fdf55365 | 1124 | if (len > 0) { |
2afaba07 | 1125 | readBuf->appended(len); |
5f8252d2 | 1126 | reply_bytes_read += len; |
447e176b | 1127 | #if DELAY_POOLS |
2afaba07 | 1128 | |
1129 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 1130 | delayId.bytesIn(len); |
447e176b | 1131 | #endif |
62e76326 | 1132 | |
1133 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1134 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1135 | IOStats.Http.reads++; |
1136 | ||
1137 | for (clen = len - 1, bin = 0; clen; bin++) | |
1138 | clen >>= 1; | |
1139 | ||
1140 | IOStats.Http.read_hist[bin]++; | |
3ff65596 AR |
1141 | |
1142 | // update peer response time stats (%<pt) | |
1143 | const timeval &sent = orig_request->hier.peer_http_request_sent; | |
1144 | orig_request->hier.peer_response_time = | |
1145 | sent.tv_sec ? tvSubMsec(sent, current_time) : -1; | |
30a4f2a8 | 1146 | } |
62e76326 | 1147 | |
073ba374 AJ |
1148 | /** \par |
1149 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1150 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1151 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1152 | * not allowing connection reuse in the first place. | |
1153 | */ | |
1154 | #if DONT_DO_THIS | |
8d71285d | 1155 | if (!flags.headers_parsed && len > 0 && fd_table[serverConnection->fd].uses > 1) { |
5fa061b8 | 1156 | /* Skip whitespace between replies */ |
62e76326 | 1157 | |
d53b3f6d FC |
1158 | while (len > 0 && xisspace(*buf)) |
1159 | xmemmove(buf, buf + 1, len--); | |
62e76326 | 1160 | |
1161 | if (len == 0) { | |
1162 | /* Continue to read... */ | |
21b92762 | 1163 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1164 | flags.do_next_read = 1; |
5f8252d2 | 1165 | maybeReadVirginBody(); |
62e76326 | 1166 | return; |
1167 | } | |
5ede6c8f | 1168 | } |
62e76326 | 1169 | |
5fa061b8 | 1170 | #endif |
1171 | ||
ba82c452 | 1172 | if (len == 0) { // reached EOF? |
62e76326 | 1173 | eof = 1; |
f61f0107 | 1174 | flags.do_next_read = 0; |
da6c8415 | 1175 | |
b73a07d6 | 1176 | /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n |
da6c8415 | 1177 | * Ensure here that we have at minimum two \r\n when EOF is seen. |
b73a07d6 | 1178 | * TODO: Add eof parameter to headersEnd() and move this hack there. |
da6c8415 | 1179 | */ |
b73a07d6 | 1180 | if (readBuf->contentSize() && !flags.headers_parsed) { |
da6c8415 AJ |
1181 | /* |
1182 | * Yes Henrik, there is a point to doing this. When we | |
1183 | * called httpProcessReplyHeader() before, we didn't find | |
1184 | * the end of headers, but now we are definately at EOF, so | |
1185 | * we want to process the reply headers. | |
1186 | */ | |
1187 | /* Fake an "end-of-headers" to work around such broken servers */ | |
1188 | readBuf->append("\r\n", 2); | |
da6c8415 | 1189 | } |
ba82c452 | 1190 | } |
62e76326 | 1191 | |
655daa06 AR |
1192 | processReply(); |
1193 | } | |
1194 | ||
1195 | /// processes the already read and buffered response data, possibly after | |
1196 | /// waiting for asynchronous 1xx control message processing | |
1197 | void | |
de48b288 A |
1198 | HttpStateData::processReply() |
1199 | { | |
655daa06 AR |
1200 | |
1201 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1202 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1203 | flags.handling1xx = false; | |
1204 | Must(!flags.headers_parsed); | |
1205 | } | |
1206 | ||
ba82c452 | 1207 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1208 | PROF_start(HttpStateData_processReplyHeader); | |
1209 | processReplyHeader(); | |
1210 | PROF_stop(HttpStateData_processReplyHeader); | |
1211 | ||
1212 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1213 | return; // TODO: send errors to ICAP | |
1214 | ||
585ab260 | 1215 | adaptOrFinalizeReply(); |
ba82c452 | 1216 | } |
1217 | ||
1218 | // kick more reads if needed and/or process the response body, if any | |
1219 | PROF_start(HttpStateData_processReplyBody); | |
1220 | processReplyBody(); // may call serverComplete() | |
1221 | PROF_stop(HttpStateData_processReplyBody); | |
1222 | } | |
1223 | ||
073ba374 AJ |
1224 | /** |
1225 | \retval true if we can continue with processing the body or doing ICAP. | |
1226 | */ | |
ba82c452 | 1227 | bool |
1228 | HttpStateData::continueAfterParsingHeader() | |
1229 | { | |
655daa06 AR |
1230 | if (flags.handling1xx) { |
1231 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1232 | Must(!flags.headers_parsed); | |
1233 | return false; | |
1234 | } | |
1235 | ||
073ba374 | 1236 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1237 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1238 | flags.do_next_read = 1; | |
073ba374 AJ |
1239 | /** \retval false If we have not finished parsing the headers and may get more data. |
1240 | * Schedules more reads to retrieve the missing data. | |
1241 | */ | |
ba82c452 | 1242 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1243 | return false; |
ba82c452 | 1244 | } |
1245 | ||
073ba374 | 1246 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1247 | |
1248 | err_type error = ERR_NONE; | |
1249 | ||
1250 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1251 | // check for header parsing errors | |
585ab260 | 1252 | if (HttpReply *vrep = virginReply()) { |
1253 | const http_status s = vrep->sline.status; | |
1254 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1255 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
9121eba6 | 1256 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); |
ba82c452 | 1257 | error = ERR_INVALID_RESP; |
e1381638 AJ |
1258 | } else if (s == HTTP_HEADER_TOO_LARGE) { |
1259 | fwd->dontRetry(true); | |
1260 | error = ERR_TOO_BIG; | |
1261 | } else { | |
1262 | return true; // done parsing, got reply, and no error | |
1263 | } | |
ba82c452 | 1264 | } else { |
1265 | // parsed headers but got no reply | |
9121eba6 | 1266 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); |
ba82c452 | 1267 | error = ERR_INVALID_RESP; |
62e76326 | 1268 | } |
090089c4 | 1269 | } else { |
ba82c452 | 1270 | assert(eof); |
9121eba6 AJ |
1271 | if (readBuf->hasContent()) { |
1272 | error = ERR_INVALID_RESP; | |
1273 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Headers did not parse at all for " << entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); | |
1274 | } else { | |
1275 | error = ERR_ZERO_SIZE_OBJECT; | |
94a1d715 AJ |
1276 | debugs(11, (orig_request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << |
1277 | entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); | |
9121eba6 | 1278 | } |
2afaba07 | 1279 | } |
ba82c452 | 1280 | |
1281 | assert(error != ERR_NONE); | |
1282 | entry->reset(); | |
1283 | fwd->fail(errorCon(error, HTTP_BAD_GATEWAY, fwd->request)); | |
1284 | flags.do_next_read = 0; | |
8d71285d | 1285 | serverConnection->close(); |
ba82c452 | 1286 | return false; // quit on error |
2afaba07 | 1287 | } |
1288 | ||
821beb5e AR |
1289 | /** truncate what we read if we read too much so that writeReplyBody() |
1290 | writes no more than what we should have read */ | |
1291 | void | |
1292 | HttpStateData::truncateVirginBody() | |
1293 | { | |
1294 | assert(flags.headers_parsed); | |
1295 | ||
1296 | HttpReply *vrep = virginReply(); | |
1297 | int64_t clen = -1; | |
1298 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1299 | return; // no body or a body of unknown size, including chunked | |
1300 | ||
1301 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; | |
e1381638 | 1302 | if (body_bytes_read - body_bytes_truncated <= clen) |
821beb5e AR |
1303 | return; // we did not read too much or already took care of the extras |
1304 | ||
1305 | if (const int64_t extras = body_bytes_read - body_bytes_truncated - clen) { | |
1306 | // server sent more that the advertised content length | |
e1381638 AJ |
1307 | debugs(11,5, HERE << "body_bytes_read=" << body_bytes_read << |
1308 | " clen=" << clen << '/' << vrep->content_length << | |
1309 | " body_bytes_truncated=" << body_bytes_truncated << '+' << extras); | |
821beb5e AR |
1310 | |
1311 | readBuf->truncate(extras); | |
1312 | body_bytes_truncated += extras; | |
1313 | } | |
1314 | } | |
1315 | ||
073ba374 | 1316 | /** |
2afaba07 | 1317 | * Call this when there is data from the origin server |
1318 | * which should be sent to either StoreEntry, or to ICAP... | |
1319 | */ | |
1320 | void | |
5f8252d2 | 1321 | HttpStateData::writeReplyBody() |
2afaba07 | 1322 | { |
821beb5e | 1323 | truncateVirginBody(); // if needed |
5f8252d2 | 1324 | const char *data = readBuf->content(); |
1325 | int len = readBuf->contentSize(); | |
bc81cb2b | 1326 | addVirginReplyBody(data, len); |
5f8252d2 | 1327 | readBuf->consume(len); |
af0bb8e5 | 1328 | } |
fc68f6b1 | 1329 | |
af0bb8e5 | 1330 | bool |
1331 | HttpStateData::decodeAndWriteReplyBody() | |
1332 | { | |
1333 | const char *data = NULL; | |
1334 | int len; | |
e053c141 | 1335 | bool wasThereAnException = false; |
af0bb8e5 | 1336 | assert(flags.chunked); |
1337 | assert(httpChunkDecoder); | |
1338 | SQUID_ENTER_THROWING_CODE(); | |
1339 | MemBuf decodedData; | |
1340 | decodedData.init(); | |
e053c141 | 1341 | const bool doneParsing = httpChunkDecoder->parse(readBuf,&decodedData); |
af0bb8e5 | 1342 | len = decodedData.contentSize(); |
1343 | data=decodedData.content(); | |
1344 | addVirginReplyBody(data, len); | |
e053c141 | 1345 | if (doneParsing) { |
839291ac AJ |
1346 | lastChunk = 1; |
1347 | flags.do_next_read = 0; | |
af0bb8e5 | 1348 | } |
e053c141 FC |
1349 | SQUID_EXIT_THROWING_CODE(wasThereAnException); |
1350 | return wasThereAnException; | |
e6ccf245 | 1351 | } |
1352 | ||
073ba374 | 1353 | /** |
2afaba07 | 1354 | * processReplyBody has two purposes: |
1355 | * 1 - take the reply body data, if any, and put it into either | |
1356 | * the StoreEntry, or give it over to ICAP. | |
1357 | * 2 - see if we made it to the end of the response (persistent | |
1358 | * connections and such) | |
1359 | */ | |
e6ccf245 | 1360 | void |
2afaba07 | 1361 | HttpStateData::processReplyBody() |
e6ccf245 | 1362 | { |
dc56a9b1 | 1363 | AsyncCall::Pointer call; |
b7ac5457 | 1364 | Ip::Address client_addr; |
d67acb4e | 1365 | bool ispinned = false; |
fc68f6b1 | 1366 | |
1a98175f | 1367 | if (!flags.headers_parsed) { |
f61f0107 | 1368 | flags.do_next_read = 1; |
5f8252d2 | 1369 | maybeReadVirginBody(); |
62e76326 | 1370 | return; |
528b2c61 | 1371 | } |
62e76326 | 1372 | |
a83c6ed6 | 1373 | #if USE_ADAPTATION |
c30ac6ea | 1374 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1375 | if (adaptationAccessCheckPending) |
2afaba07 | 1376 | return; |
fc68f6b1 | 1377 | |
2afaba07 | 1378 | #endif |
62e76326 | 1379 | |
2afaba07 | 1380 | /* |
1381 | * At this point the reply headers have been parsed and consumed. | |
1382 | * That means header content has been removed from readBuf and | |
1383 | * it contains only body data. | |
1384 | */ | |
9e008dda AJ |
1385 | if (flags.chunked) { |
1386 | if (!decodeAndWriteReplyBody()) { | |
1387 | flags.do_next_read = 0; | |
1388 | serverComplete(); | |
1389 | return; | |
1390 | } | |
1391 | } else | |
1392 | writeReplyBody(); | |
528b2c61 | 1393 | |
e6ccf245 | 1394 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1395 | /* |
073ba374 | 1396 | * The above writeReplyBody() call could ABORT this entry, |
62e76326 | 1397 | * in that case, the server FD should already be closed. |
1398 | * there's nothing for us to do. | |
1399 | */ | |
1400 | (void) 0; | |
1401 | } else | |
1402 | switch (persistentConnStatus()) { | |
62e76326 | 1403 | case INCOMPLETE_MSG: |
bf8fe701 | 1404 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG"); |
21b92762 | 1405 | /* Wait for more data or EOF condition */ |
21b92762 | 1406 | if (flags.keepalive_broken) { |
9e008dda | 1407 | call = NULL; |
8d71285d | 1408 | commSetTimeout(serverConnection->fd, 10, call); |
21b92762 | 1409 | } else { |
9e008dda | 1410 | call = NULL; |
8d71285d | 1411 | commSetTimeout(serverConnection->fd, Config.Timeout.read, call); |
21b92762 | 1412 | } |
1413 | ||
f61f0107 | 1414 | flags.do_next_read = 1; |
62e76326 | 1415 | break; |
1416 | ||
1417 | case COMPLETE_PERSISTENT_MSG: | |
bf8fe701 | 1418 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG"); |
62e76326 | 1419 | /* yes we have to clear all these! */ |
9e008dda | 1420 | call = NULL; |
8d71285d | 1421 | commSetTimeout(serverConnection->fd, -1, call); |
f61f0107 | 1422 | flags.do_next_read = 0; |
62e76326 | 1423 | |
8d71285d | 1424 | comm_remove_close_handler(serverConnection->fd, closeHandler); |
dc56a9b1 | 1425 | closeHandler = NULL; |
8d71285d | 1426 | fwd->unregister(serverConnection); |
fc68f6b1 | 1427 | |
f165d2fb | 1428 | if (orig_request->flags.spoof_client_ip) |
cc192b50 | 1429 | client_addr = orig_request->client_addr; |
fc68f6b1 | 1430 | |
d67acb4e | 1431 | |
9e008dda AJ |
1432 | if (request->flags.pinned) { |
1433 | ispinned = true; | |
1434 | } else if (request->flags.connection_auth && request->flags.auth_sent) { | |
1435 | ispinned = true; | |
1436 | } | |
1437 | ||
1438 | if (orig_request->pinnedConnection() && ispinned) { | |
8d71285d | 1439 | orig_request->pinnedConnection()->pinConnection(serverConnection->fd, orig_request, _peer, |
9e008dda | 1440 | (request->flags.connection_auth != 0)); |
bd0723ad | 1441 | } else { |
642a305c | 1442 | fwd->pconnPush(serverConnection, request->GetHost()); |
bd0723ad | 1443 | } |
1444 | ||
8d71285d | 1445 | serverConnection = NULL; |
2afaba07 | 1446 | |
5f8252d2 | 1447 | serverComplete(); |
62e76326 | 1448 | return; |
1449 | ||
1450 | case COMPLETE_NONPERSISTENT_MSG: | |
bf8fe701 | 1451 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG"); |
5f8252d2 | 1452 | serverComplete(); |
62e76326 | 1453 | return; |
1454 | } | |
1455 | ||
5f8252d2 | 1456 | maybeReadVirginBody(); |
c4b7a5a9 | 1457 | } |
1458 | ||
1459 | void | |
5f8252d2 | 1460 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1461 | { |
52edecde | 1462 | // we may need to grow the buffer if headers do not fit |
1c9605c5 | 1463 | const int minRead = flags.headers_parsed ? 0 :1024; |
d5f8d05f | 1464 | const int read_size = replyBodySpace(*readBuf, minRead); |
2afaba07 | 1465 | |
5f8252d2 | 1466 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
9cf7de1b | 1467 | " read up to " << read_size << " bytes from " << serverConnection); |
2afaba07 | 1468 | |
1469 | /* | |
1470 | * why <2? Because delayAwareRead() won't actually read if | |
1471 | * you ask it to read 1 byte. The delayed read request | |
1472 | * just gets re-queued until the client side drains, then | |
1473 | * the I/O thread hangs. Better to not register any read | |
1474 | * handler until we get a notification from someone that | |
1475 | * its okay to read again. | |
1476 | */ | |
d5f8d05f | 1477 | if (read_size < 2) |
52edecde | 1478 | return; |
2afaba07 | 1479 | |
f61f0107 | 1480 | if (flags.do_next_read) { |
dc56a9b1 | 1481 | flags.do_next_read = 0; |
1482 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
8d71285d | 1483 | entry->delayAwareRead(serverConnection->fd, readBuf->space(read_size), read_size, |
4cb2536f | 1484 | JobCallback(11, 5, Dialer, this, HttpStateData::readReply)); |
528b2c61 | 1485 | } |
090089c4 | 1486 | } |
1487 | ||
39cb8c41 | 1488 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1489 | void |
39cb8c41 | 1490 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1491 | { |
9cf7de1b | 1492 | debugs(11, 5, HERE << serverConnection << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1493 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1494 | |
528b2c61 | 1495 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1496 | #endif |
62e76326 | 1497 | |
dc56a9b1 | 1498 | if (io.size > 0) { |
49ae8b95 | 1499 | fd_bytes(io.fd, io.size, FD_WRITE); |
dc56a9b1 | 1500 | kb_incr(&statCounter.server.all.kbytes_out, io.size); |
1501 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
ee1679df | 1502 | } |
62e76326 | 1503 | |
dc56a9b1 | 1504 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1505 | return; |
1506 | ||
dc56a9b1 | 1507 | if (io.flag) { |
6cae5db1 | 1508 | ErrorState *err; |
dc56a9b1 | 1509 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
1510 | err->xerrno = io.xerrno; | |
1511 | fwd->fail(err); | |
8d71285d | 1512 | serverConnection->close(); |
62e76326 | 1513 | return; |
090089c4 | 1514 | } |
72b63f06 | 1515 | |
39cb8c41 AR |
1516 | sendComplete(); |
1517 | } | |
1518 | ||
1519 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1520 | void | |
1521 | HttpStateData::sendComplete() | |
1522 | { | |
2afaba07 | 1523 | /* |
1524 | * Set the read timeout here because it hasn't been set yet. | |
1525 | * We only set the read timeout after the request has been | |
1526 | * fully written to the server-side. If we start the timeout | |
1527 | * after connection establishment, then we are likely to hit | |
1528 | * the timeout for POST/PUT requests that have very large | |
1529 | * request bodies. | |
1530 | */ | |
dc56a9b1 | 1531 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1532 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1533 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1534 | |
8d71285d | 1535 | commSetTimeout(serverConnection->fd, Config.Timeout.read, timeoutCall); |
dc56a9b1 | 1536 | |
1537 | flags.request_sent = 1; | |
e1381638 | 1538 | |
3ff65596 | 1539 | orig_request->hier.peer_http_request_sent = current_time; |
090089c4 | 1540 | } |
1541 | ||
5f8252d2 | 1542 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1543 | void |
5f8252d2 | 1544 | HttpStateData::closeServer() |
2afaba07 | 1545 | { |
9cf7de1b | 1546 | debugs(11,5, HERE << "closing HTTP server " << serverConnection << " this " << this); |
fc68f6b1 | 1547 | |
9cf7de1b | 1548 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d AJ |
1549 | fwd->unregister(serverConnection); |
1550 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
dc56a9b1 | 1551 | closeHandler = NULL; |
8d71285d | 1552 | serverConnection->close(); |
2afaba07 | 1553 | } |
5f8252d2 | 1554 | } |
2afaba07 | 1555 | |
5f8252d2 | 1556 | bool |
1557 | HttpStateData::doneWithServer() const | |
1558 | { | |
9cf7de1b | 1559 | return !Comm::IsConnOpen(serverConnection); |
2afaba07 | 1560 | } |
1561 | ||
ee0b94f4 HN |
1562 | /* |
1563 | * Fixup authentication request headers for special cases | |
1564 | */ | |
1565 | static void | |
1566 | httpFixupAuthentication(HttpRequest * request, HttpRequest * orig_request, const HttpHeader * hdr_in, HttpHeader * hdr_out, http_state_flags flags) | |
1567 | { | |
1568 | http_hdr_type header = flags.originpeer ? HDR_AUTHORIZATION : HDR_PROXY_AUTHORIZATION; | |
1569 | ||
1570 | /* Nothing to do unless we are forwarding to a peer */ | |
1571 | if (!request->flags.proxying) | |
f54f527e | 1572 | return; |
ee0b94f4 HN |
1573 | |
1574 | /* Needs to be explicitly enabled */ | |
dcde39a7 | 1575 | if (!orig_request->peer_login) |
f54f527e | 1576 | return; |
ee0b94f4 HN |
1577 | |
1578 | /* Maybe already dealt with? */ | |
1579 | if (hdr_out->has(header)) | |
f54f527e | 1580 | return; |
ee0b94f4 HN |
1581 | |
1582 | /* Nothing to do here for PASSTHRU */ | |
1583 | if (strcmp(orig_request->peer_login, "PASSTHRU") == 0) | |
f54f527e | 1584 | return; |
ee0b94f4 HN |
1585 | |
1586 | /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */ | |
1587 | if (flags.originpeer && strcmp(orig_request->peer_login, "PROXYPASS") == 0 && hdr_in->has(HDR_PROXY_AUTHORIZATION)) { | |
f54f527e | 1588 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
ee0b94f4 | 1589 | |
f54f527e AJ |
1590 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1591 | hdr_out->putStr(header, auth); | |
1592 | return; | |
1593 | } | |
ee0b94f4 HN |
1594 | } |
1595 | ||
1596 | /* Special mode to pass the username to the upstream cache */ | |
1597 | if (*orig_request->peer_login == '*') { | |
f54f527e AJ |
1598 | char loginbuf[256]; |
1599 | const char *username = "-"; | |
ee0b94f4 | 1600 | |
f54f527e AJ |
1601 | if (orig_request->extacl_user.size()) |
1602 | username = orig_request->extacl_user.termedBuf(); | |
a33a428a | 1603 | else if (orig_request->auth_user_request != NULL) |
f54f527e | 1604 | username = orig_request->auth_user_request->username(); |
ee0b94f4 | 1605 | |
f54f527e | 1606 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); |
ee0b94f4 | 1607 | |
f54f527e AJ |
1608 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
1609 | base64_encode(loginbuf)); | |
1610 | return; | |
ee0b94f4 HN |
1611 | } |
1612 | ||
1613 | /* external_acl provided credentials */ | |
1614 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size() && | |
f54f527e AJ |
1615 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1616 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
1617 | char loginbuf[256]; | |
1618 | snprintf(loginbuf, sizeof(loginbuf), SQUIDSTRINGPH ":" SQUIDSTRINGPH, | |
1619 | SQUIDSTRINGPRINT(orig_request->extacl_user), | |
1620 | SQUIDSTRINGPRINT(orig_request->extacl_passwd)); | |
1621 | httpHeaderPutStrf(hdr_out, header, "Basic %s", | |
1622 | base64_encode(loginbuf)); | |
1623 | return; | |
ee0b94f4 HN |
1624 | } |
1625 | ||
9ca29d23 AJ |
1626 | /* Kerberos login to peer */ |
1627 | #if HAVE_KRB5 && HAVE_GSSAPI | |
1628 | if (strncmp(orig_request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { | |
1629 | char *Token=NULL; | |
1630 | char *PrincipalName=NULL,*p; | |
1631 | if ((p=strchr(orig_request->peer_login,':')) != NULL ) { | |
1632 | PrincipalName=++p; | |
1633 | } | |
1634 | Token = peer_proxy_negotiate_auth(PrincipalName,request->peer_host); | |
1635 | if (Token) { | |
1636 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Negotiate %s",Token); | |
1637 | } | |
1638 | return; | |
1639 | } | |
1640 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1641 | ||
0606266f | 1642 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
f54f527e | 1643 | base64_encode(orig_request->peer_login)); |
ee0b94f4 HN |
1644 | return; |
1645 | } | |
1646 | ||
99edd1c3 | 1647 | /* |
9e008dda | 1648 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1649 | * used by buildRequestPrefix() |
818c6c9e | 1650 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1651 | */ |
e1e72f06 | 1652 | void |
e5ee81f0 | 1653 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1654 | HttpRequest * orig_request, | |
1655 | StoreEntry * entry, | |
1656 | HttpHeader * hdr_out, | |
386c7842 | 1657 | const http_state_flags flags) |
6bf8443a | 1658 | { |
99edd1c3 | 1659 | /* building buffer for complex strings */ |
5999b776 | 1660 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1661 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1662 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
99edd1c3 | 1663 | const HttpHeader *hdr_in = &orig_request->header; |
67c06f0d | 1664 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1665 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1666 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1667 | |
262a0e14 | 1668 | /* append our IMS header */ |
fa3e249f | 1669 | if (request->lastmod > -1) |
a9925b40 | 1670 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1671 | |
528b2c61 | 1672 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1673 | ||
30abd221 | 1674 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1675 | |
a9925b40 | 1676 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1677 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1678 | |
43ae1d95 | 1679 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1680 | * into offset-length data, and this works around our inability to do so. |
1681 | */ | |
62e76326 | 1682 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1683 | /* don't cache the result */ | |
1684 | orig_request->flags.cachable = 0; | |
1685 | /* pretend it's not a range request */ | |
00d77d6b | 1686 | delete orig_request->range; |
62e76326 | 1687 | orig_request->range = NULL; |
1688 | orig_request->flags.range = 0; | |
1689 | } | |
528b2c61 | 1690 | |
99edd1c3 | 1691 | /* append Via */ |
736cb6aa | 1692 | if (Config.onoff.via) { |
30abd221 | 1693 | String strVia; |
a9925b40 | 1694 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1695 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1696 | orig_request->http_ver.major, | |
1697 | orig_request->http_ver.minor, ThisCache); | |
1698 | strListAdd(&strVia, bbuf, ','); | |
d53b3f6d | 1699 | hdr_out->putStr(HDR_VIA, strVia.termedBuf()); |
30abd221 | 1700 | strVia.clean(); |
736cb6aa | 1701 | } |
62e76326 | 1702 | |
432bc83c | 1703 | if (orig_request->flags.accelerated) { |
43ae1d95 | 1704 | /* Append Surrogate-Capabilities */ |
45cca89d AJ |
1705 | String strSurrogate(hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
1706 | #if USE_SQUID_ESI | |
1707 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1708 | #else | |
1709 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1710 | #endif | |
43ae1d95 | 1711 | strListAdd(&strSurrogate, bbuf, ','); |
d53b3f6d | 1712 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1713 | } |
43ae1d95 | 1714 | |
67c06f0d | 1715 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1716 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 AR |
1717 | |
1718 | String strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1719 | ||
1720 | if (strFwd.size() > 65536/2) { | |
1721 | // There is probably a forwarding loop with Via detection disabled. | |
1722 | // If we do nothing, String will assert on overflow soon. | |
1723 | // TODO: Terminate all transactions with huge XFF? | |
1724 | strFwd = "error"; | |
1725 | ||
1726 | static int warnedCount = 0; | |
1727 | if (warnedCount++ < 100) { | |
1728 | const char *url = entry ? entry->url() : urlCanonical(orig_request); | |
1729 | debugs(11, 1, "Warning: likely forwarding loop with " << url); | |
1730 | } | |
1731 | } | |
1732 | ||
9e008dda | 1733 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1734 | /** If set to ON - append client IP or 'unknown'. */ |
9e008dda | 1735 | if ( orig_request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1736 | strListAdd(&strFwd, "unknown", ','); |
1737 | else | |
1738 | strListAdd(&strFwd, orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); | |
9e008dda | 1739 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1740 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1741 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1742 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1743 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1744 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1745 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
9e008dda | 1746 | if ( orig_request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1747 | strFwd = "unknown"; |
1748 | else | |
1749 | strFwd = orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); | |
1750 | } | |
9e008dda | 1751 | if (strFwd.size() > 0) |
d53b3f6d | 1752 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1753 | } |
67c06f0d | 1754 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1755 | |
99edd1c3 | 1756 | /* append Host if not there already */ |
a9925b40 | 1757 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1758 | if (orig_request->peer_domain) { |
a9925b40 | 1759 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1760 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1761 | /* use port# only if not default */ | |
cc192b50 | 1762 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
62e76326 | 1763 | } else { |
1764 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1765 | orig_request->GetHost(), |
1766 | (int) orig_request->port); | |
62e76326 | 1767 | } |
6bf8443a | 1768 | } |
62e76326 | 1769 | |
c68e9c6b | 1770 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1771 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1772 | if (!request->flags.proxying && *request->login) { |
1773 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1774 | base64_encode(request->login)); | |
1775 | } | |
c68e9c6b | 1776 | } |
62e76326 | 1777 | |
ee0b94f4 HN |
1778 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
1779 | httpFixupAuthentication(request, orig_request, hdr_in, hdr_out, flags); | |
62e76326 | 1780 | |
ee0b94f4 HN |
1781 | /* append Cache-Control, add max-age if not there already */ |
1782 | { | |
a9925b40 | 1783 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1784 | |
1785 | if (!cc) | |
1786 | cc = httpHdrCcCreate(); | |
1787 | ||
7dc5c309 AJ |
1788 | #if 0 /* see bug 2330 */ |
1789 | /* Set no-cache if determined needed but not found */ | |
1790 | if (orig_request->flags.nocache) | |
1791 | EBIT_SET(cc->mask, CC_NO_CACHE); | |
1792 | #endif | |
1793 | ||
af6a12ee AJ |
1794 | /* Add max-age only without no-cache */ |
1795 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE) && !EBIT_TEST(cc->mask, CC_NO_CACHE)) { | |
43ae1d95 | 1796 | const char *url = |
3900307b | 1797 | entry ? entry->url() : urlCanonical(orig_request); |
62e76326 | 1798 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1799 | ||
1800 | if (request->urlpath.size()) | |
e8466ea9 | 1801 | assert(strstr(url, request->urlpath.termedBuf())); |
62e76326 | 1802 | } |
1803 | ||
ce2d6441 | 1804 | /* Enforce sibling relations */ |
62e76326 | 1805 | if (flags.only_if_cached) |
1806 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1807 | ||
a9925b40 | 1808 | hdr_out->putCc(cc); |
62e76326 | 1809 | |
1810 | httpHdrCcDestroy(cc); | |
6bf8443a | 1811 | } |
62e76326 | 1812 | |
99edd1c3 | 1813 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1814 | if (flags.keepalive) { |
95e78500 | 1815 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
603a02fd | 1816 | } |
62e76326 | 1817 | |
a7ad6e4e | 1818 | /* append Front-End-Https */ |
1819 | if (flags.front_end_https) { | |
62e76326 | 1820 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1821 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1822 | } |
1823 | ||
e31a1e67 AR |
1824 | if (flags.chunked_request) { |
1825 | // Do not just copy the original value so that if the client-side | |
1826 | // starts decode other encodings, this code may remain valid. | |
39cb8c41 AR |
1827 | hdr_out->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1828 | } | |
1829 | ||
6bccf575 | 1830 | /* Now mangle the headers. */ |
4f56514c | 1831 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1832 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1833 | |
30abd221 | 1834 | strConnection.clean(); |
99edd1c3 | 1835 | } |
1836 | ||
9e498bfb AJ |
1837 | /** |
1838 | * Decides whether a particular header may be cloned from the received Clients request | |
1839 | * to our outgoing fetch request. | |
1840 | */ | |
528b2c61 | 1841 | void |
9e498bfb | 1842 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, HttpRequest * request, const HttpRequest * orig_request, HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags flags) |
528b2c61 | 1843 | { |
e8466ea9 | 1844 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 1845 | |
528b2c61 | 1846 | switch (e->id) { |
62e76326 | 1847 | |
af6a12ee | 1848 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 1849 | |
be753325 | 1850 | case HDR_PROXY_AUTHORIZATION: |
9e498bfb AJ |
1851 | /** \par Proxy-Authorization: |
1852 | * Only pass on proxy authentication to peers for which | |
62e76326 | 1853 | * authentication forwarding is explicitly enabled |
1854 | */ | |
ee0b94f4 | 1855 | if (!flags.originpeer && flags.proxying && orig_request->peer_login && |
f54f527e AJ |
1856 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1857 | strcmp(orig_request->peer_login, "PROXYPASS") == 0 || | |
1858 | strcmp(orig_request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 1859 | hdr_out->addEntry(e->clone()); |
62e76326 | 1860 | } |
62e76326 | 1861 | break; |
1862 | ||
af6a12ee | 1863 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb AJ |
1864 | |
1865 | case HDR_CONNECTION: /** \par Connection: */ | |
1866 | case HDR_TE: /** \par TE: */ | |
1867 | case HDR_KEEP_ALIVE: /** \par Keep-Alive: */ | |
1868 | case HDR_PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
a1651bad | 1869 | case HDR_TRAILER: /** \par Trailer: */ |
9e498bfb AJ |
1870 | case HDR_UPGRADE: /** \par Upgrade: */ |
1871 | case HDR_TRANSFER_ENCODING: /** \par Transfer-Encoding: */ | |
1872 | break; | |
1873 | ||
1874 | ||
af6a12ee | 1875 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 1876 | |
be753325 | 1877 | case HDR_AUTHORIZATION: |
9e498bfb AJ |
1878 | /** \par WWW-Authorization: |
1879 | * Pass on WWW authentication */ | |
62e76326 | 1880 | |
1881 | if (!flags.originpeer) { | |
eede25e7 | 1882 | hdr_out->addEntry(e->clone()); |
62e76326 | 1883 | } else { |
9e498bfb | 1884 | /** \note In accelerators, only forward authentication if enabled |
ee0b94f4 | 1885 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 1886 | */ |
abb929f0 | 1887 | if (orig_request->peer_login && |
1888 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
11e4c5e5 | 1889 | strcmp(orig_request->peer_login, "PASSTHRU") == 0 || |
abb929f0 | 1890 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { |
eede25e7 | 1891 | hdr_out->addEntry(e->clone()); |
62e76326 | 1892 | } |
1893 | } | |
1894 | ||
1895 | break; | |
1896 | ||
be753325 | 1897 | case HDR_HOST: |
9e498bfb | 1898 | /** \par Host: |
b883b594 | 1899 | * Normally Squid rewrites the Host: header. |
1900 | * However, there is one case when we don't: If the URL | |
62e76326 | 1901 | * went through our redirector and the admin configured |
1902 | * 'redir_rewrites_host' to be off. | |
1903 | */ | |
9e008dda | 1904 | if (orig_request->peer_domain) |
488b27c5 HN |
1905 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
1906 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) | |
eede25e7 | 1907 | hdr_out->addEntry(e->clone()); |
b883b594 | 1908 | else { |
1909 | /* use port# only if not default */ | |
1910 | ||
1911 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
cc192b50 | 1912 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
b883b594 | 1913 | } else { |
1914 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1915 | orig_request->GetHost(), |
1916 | (int) orig_request->port); | |
b883b594 | 1917 | } |
1918 | } | |
62e76326 | 1919 | |
1920 | break; | |
1921 | ||
be753325 | 1922 | case HDR_IF_MODIFIED_SINCE: |
9e498bfb | 1923 | /** \par If-Modified-Since: |
af6a12ee | 1924 | * append unless we added our own; |
9e498bfb | 1925 | * \note at most one client's ims header can pass through */ |
b883b594 | 1926 | |
a9925b40 | 1927 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1928 | hdr_out->addEntry(e->clone()); |
62e76326 | 1929 | |
1930 | break; | |
1931 | ||
be753325 | 1932 | case HDR_MAX_FORWARDS: |
9e498bfb | 1933 | /** \par Max-Forwards: |
fc90edc3 AJ |
1934 | * pass only on TRACE or OPTIONS requests */ |
1935 | if (orig_request->method == METHOD_TRACE || orig_request->method == METHOD_OPTIONS) { | |
1936 | const int64_t hops = e->getInt64(); | |
62e76326 | 1937 | |
1938 | if (hops > 0) | |
fc90edc3 | 1939 | hdr_out->putInt64(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1940 | } |
1941 | ||
1942 | break; | |
1943 | ||
be753325 | 1944 | case HDR_VIA: |
9e498bfb AJ |
1945 | /** \par Via: |
1946 | * If Via is disabled then forward any received header as-is. | |
1947 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 1948 | |
1949 | if (!Config.onoff.via) | |
eede25e7 | 1950 | hdr_out->addEntry(e->clone()); |
62e76326 | 1951 | |
1952 | break; | |
1953 | ||
be753325 | 1954 | case HDR_RANGE: |
62e76326 | 1955 | |
be753325 | 1956 | case HDR_IF_RANGE: |
62e76326 | 1957 | |
be753325 | 1958 | case HDR_REQUEST_RANGE: |
9e498bfb AJ |
1959 | /** \par Range:, If-Range:, Request-Range: |
1960 | * Only pass if we accept ranges */ | |
62e76326 | 1961 | if (!we_do_ranges) |
eede25e7 | 1962 | hdr_out->addEntry(e->clone()); |
62e76326 | 1963 | |
1964 | break; | |
1965 | ||
95e78500 AJ |
1966 | case HDR_PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
1967 | break; | |
62e76326 | 1968 | |
be753325 | 1969 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1970 | |
be753325 | 1971 | case HDR_CACHE_CONTROL: |
95e78500 | 1972 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
1973 | * handled specially by Squid, so leave off for now. |
1974 | * append these after the loop if needed */ | |
62e76326 | 1975 | break; |
1976 | ||
be753325 | 1977 | case HDR_FRONT_END_HTTPS: |
9e498bfb AJ |
1978 | /** \par Front-End-Https: |
1979 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 1980 | if (!flags.front_end_https) |
eede25e7 | 1981 | hdr_out->addEntry(e->clone()); |
62e76326 | 1982 | |
1983 | break; | |
1984 | ||
be753325 | 1985 | default: |
9e498bfb AJ |
1986 | /** \par default. |
1987 | * pass on all other header fields | |
1988 | * which are NOT listed by the special Connection: header. */ | |
1989 | ||
a7a42b14 | 1990 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name.termedBuf(), ',')) { |
e1ea7456 | 1991 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
1992 | return; |
1993 | } | |
1994 | ||
eede25e7 | 1995 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1996 | } |
1997 | } | |
1998 | ||
e5ee81f0 | 1999 | bool |
2000 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 2001 | { |
e5ee81f0 | 2002 | bool result = true; |
62e76326 | 2003 | /* decide if we want to do Ranges ourselves |
2004 | * and fetch the whole object now) | |
2005 | * We want to handle Ranges ourselves iff | |
2006 | * - we can actually parse client Range specs | |
2007 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
2008 | * - reply will be cachable | |
2009 | * (If the reply will be uncachable we have to throw it away after | |
2010 | * serving this request, so it is better to forward ranges to | |
2011 | * the server and fetch only the requested content) | |
2012 | */ | |
2013 | ||
11e3fa1c AJ |
2014 | int64_t roffLimit = orig_request->getRangeOffsetLimit(); |
2015 | ||
62e76326 | 2016 | if (NULL == orig_request->range || !orig_request->flags.cachable |
11e3fa1c | 2017 | || orig_request->range->offsetLimitExceeded(roffLimit) || orig_request->flags.connection_auth) |
e5ee81f0 | 2018 | result = false; |
62e76326 | 2019 | |
9e008dda AJ |
2020 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
2021 | orig_request->range << ", cachable: " << | |
2022 | orig_request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 2023 | |
2024 | return result; | |
528b2c61 | 2025 | } |
2026 | ||
62e76326 | 2027 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 2028 | * return the length of the prefix */ |
9bc73deb | 2029 | mb_size_t |
e053c141 FC |
2030 | HttpStateData::buildRequestPrefix(HttpRequest * aRequest, |
2031 | HttpRequest * original_request, | |
2032 | StoreEntry * sentry, | |
386c7842 | 2033 | MemBuf * mb) |
99edd1c3 | 2034 | { |
2035 | const int offset = mb->size; | |
3872be7c | 2036 | HttpVersion httpver(1,1); |
2fe7eff9 | 2037 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
e053c141 FC |
2038 | RequestMethodStr(aRequest->method), |
2039 | aRequest->urlpath.size() ? aRequest->urlpath.termedBuf() : "/", | |
2fe7eff9 | 2040 | httpver.major,httpver.minor); |
99edd1c3 | 2041 | /* build and pack headers */ |
2042 | { | |
75faaa7a | 2043 | HttpHeader hdr(hoRequest); |
62e76326 | 2044 | Packer p; |
386c7842 | 2045 | httpBuildRequestHeader(aRequest, original_request, sentry, &hdr, flags); |
9e008dda | 2046 | |
e053c141 FC |
2047 | if (aRequest->flags.pinned && aRequest->flags.connection_auth) |
2048 | aRequest->flags.auth_sent = 1; | |
d67acb4e | 2049 | else if (hdr.has(HDR_AUTHORIZATION)) |
e053c141 | 2050 | aRequest->flags.auth_sent = 1; |
d67acb4e | 2051 | |
62e76326 | 2052 | packerToMemInit(&p, mb); |
a9925b40 | 2053 | hdr.packInto(&p); |
519e0948 | 2054 | hdr.clean(); |
62e76326 | 2055 | packerClean(&p); |
9d9d144b | 2056 | } |
99edd1c3 | 2057 | /* append header terminator */ |
2fe7eff9 | 2058 | mb->append(crlf, 2); |
99edd1c3 | 2059 | return mb->size - offset; |
6bf8443a | 2060 | } |
62e76326 | 2061 | |
090089c4 | 2062 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2063 | bool |
2bb867b5 | 2064 | HttpStateData::sendRequest() |
090089c4 | 2065 | { |
99edd1c3 | 2066 | MemBuf mb; |
090089c4 | 2067 | |
9cf7de1b | 2068 | debugs(11, 5, HERE << serverConnection << ", request " << request << ", this " << this << "."); |
a0297974 | 2069 | |
6b679a01 | 2070 | if (!Comm::IsConnOpen(serverConnection)) { |
9cf7de1b | 2071 | debugs(11,3, HERE << "cannot send request to closing " << serverConnection); |
a0297974 AR |
2072 | assert(closeHandler != NULL); |
2073 | return false; | |
2074 | } | |
2075 | ||
dc56a9b1 | 2076 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2077 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2078 | TimeoutDialer, this, HttpStateData::httpTimeout); |
855150a4 | 2079 | commSetTimeout(serverConnection->fd, Config.Timeout.lifetime, timeoutCall); |
2bb867b5 | 2080 | flags.do_next_read = 1; |
5f8252d2 | 2081 | maybeReadVirginBody(); |
2082 | ||
2083 | if (orig_request->body_pipe != NULL) { | |
123ec4de | 2084 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2085 | return false; |
9e008dda | 2086 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2087 | requestSender = JobCallback(11,5, |
4cb2536f | 2088 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2089 | |
2090 | Must(!flags.chunked_request); | |
2091 | // Preserve original chunked encoding unless we learned the length. | |
2092 | if (orig_request->header.chunked() && orig_request->content_length < 0) | |
2093 | flags.chunked_request = 1; | |
5f8252d2 | 2094 | } else { |
2095 | assert(!requestBodySource); | |
9e008dda | 2096 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2097 | requestSender = JobCallback(11,5, |
39cb8c41 | 2098 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2099 | } |
54220df8 | 2100 | |
2bb867b5 | 2101 | if (_peer != NULL) { |
2102 | if (_peer->options.originserver) { | |
2103 | flags.proxying = 0; | |
2104 | flags.originpeer = 1; | |
62e76326 | 2105 | } else { |
2bb867b5 | 2106 | flags.proxying = 1; |
2107 | flags.originpeer = 0; | |
62e76326 | 2108 | } |
be753325 | 2109 | } else { |
2bb867b5 | 2110 | flags.proxying = 0; |
2111 | flags.originpeer = 0; | |
be753325 | 2112 | } |
62e76326 | 2113 | |
efb9218c | 2114 | /* |
99edd1c3 | 2115 | * Is keep-alive okay for all request methods? |
efb9218c | 2116 | */ |
d67acb4e | 2117 | if (orig_request->flags.must_keepalive) |
9e008dda | 2118 | flags.keepalive = 1; |
d67acb4e | 2119 | else if (!Config.onoff.server_pconns) |
2bb867b5 | 2120 | flags.keepalive = 0; |
2121 | else if (_peer == NULL) | |
2122 | flags.keepalive = 1; | |
2123 | else if (_peer->stats.n_keepalives_sent < 10) | |
2124 | flags.keepalive = 1; | |
2125 | else if ((double) _peer->stats.n_keepalives_recv / | |
2126 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
2127 | flags.keepalive = 1; | |
2128 | ||
2129 | if (_peer) { | |
2130 | if (neighborType(_peer, request) == PEER_SIBLING && | |
2131 | !_peer->options.allow_miss) | |
2132 | flags.only_if_cached = 1; | |
2133 | ||
2134 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2135 | } |
62e76326 | 2136 | |
2fe7eff9 | 2137 | mb.init(); |
9ca29d23 | 2138 | request->peer_host=_peer?_peer->host:NULL; |
386c7842 | 2139 | buildRequestPrefix(request, orig_request, entry, &mb); |
9cf7de1b | 2140 | debugs(11, 6, HERE << serverConnection << ":\n" << mb.buf); |
e0d28505 | 2141 | comm_write_mbuf(serverConnection, &mb, requestSender); |
5f8252d2 | 2142 | return true; |
090089c4 | 2143 | } |
b6a2f15e | 2144 | |
39cb8c41 AR |
2145 | bool |
2146 | HttpStateData::getMoreRequestBody(MemBuf &buf) | |
2147 | { | |
2148 | // parent's implementation can handle the no-encoding case | |
e31a1e67 | 2149 | if (!flags.chunked_request) |
39cb8c41 AR |
2150 | return ServerStateData::getMoreRequestBody(buf); |
2151 | ||
2152 | MemBuf raw; | |
2153 | ||
2154 | Must(requestBodySource != NULL); | |
2155 | if (!requestBodySource->getMoreData(raw)) | |
2156 | return false; // no request body bytes to chunk yet | |
2157 | ||
2158 | // optimization: pre-allocate buffer size that should be enough | |
2159 | const mb_size_t rawDataSize = raw.contentSize(); | |
2160 | // we may need to send: hex-chunk-size CRLF raw-data CRLF last-chunk | |
2161 | buf.init(16 + 2 + rawDataSize + 2 + 5, raw.max_capacity); | |
2162 | ||
d958d14f | 2163 | buf.Printf("%x\r\n", static_cast<unsigned int>(rawDataSize)); |
39cb8c41 AR |
2164 | buf.append(raw.content(), rawDataSize); |
2165 | buf.Printf("\r\n"); | |
2166 | ||
2167 | Must(rawDataSize > 0); // we did not accidently created last-chunk above | |
2168 | ||
2169 | // Do not send last-chunk unless we successfully received everything | |
2170 | if (receivedWholeRequestBody) { | |
2171 | Must(!flags.sentLastChunk); | |
2172 | flags.sentLastChunk = true; | |
de48b288 | 2173 | buf.append("0\r\n\r\n", 5); |
39cb8c41 AR |
2174 | } |
2175 | ||
2176 | return true; | |
2177 | } | |
2178 | ||
910169e5 | 2179 | void |
b6b6f466 | 2180 | httpStart(FwdState *fwd) |
603a02fd | 2181 | { |
60745f24 | 2182 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
a3d50c30 | 2183 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 2184 | |
5f8252d2 | 2185 | if (!httpState->sendRequest()) { |
bf8fe701 | 2186 | debugs(11, 3, "httpStart: aborted"); |
5f8252d2 | 2187 | delete httpState; |
2188 | return; | |
2189 | } | |
62e76326 | 2190 | |
5f8252d2 | 2191 | statCounter.server.all.requests++; |
83704487 | 2192 | statCounter.server.http.requests++; |
62e76326 | 2193 | |
b6a2f15e | 2194 | /* |
2195 | * We used to set the read timeout here, but not any more. | |
2196 | * Now its set in httpSendComplete() after the full request, | |
2197 | * including request body, has been written to the server. | |
2198 | */ | |
090089c4 | 2199 | } |
2200 | ||
39cb8c41 AR |
2201 | /// if broken posts are enabled for the request, try to fix and return true |
2202 | bool | |
2203 | HttpStateData::finishingBrokenPost() | |
2bb867b5 | 2204 | { |
626096be | 2205 | #if USE_HTTP_VIOLATIONS |
39cb8c41 AR |
2206 | if (!Config.accessList.brokenPosts) { |
2207 | debugs(11, 5, HERE << "No brokenPosts list"); | |
2208 | return false; | |
2209 | } | |
a0297974 | 2210 | |
39cb8c41 AR |
2211 | ACLFilledChecklist ch(Config.accessList.brokenPosts, request, NULL); |
2212 | if (!ch.fastCheck()) { | |
2213 | debugs(11, 5, HERE << "didn't match brokenPosts"); | |
2214 | return false; | |
2215 | } | |
a0297974 | 2216 | |
9cf7de1b AJ |
2217 | if (!Comm::IsConnOpen(serverConnection)) { |
2218 | debugs(11,2, HERE << "ignoring broken POST for closed " << serverConnection); | |
39cb8c41 AR |
2219 | assert(closeHandler != NULL); |
2220 | return true; // prevent caller from proceeding as if nothing happened | |
54220df8 | 2221 | } |
39cb8c41 AR |
2222 | |
2223 | debugs(11, 2, "finishingBrokenPost: fixing broken POST"); | |
2224 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
2225 | requestSender = JobCallback(11,5, | |
2226 | Dialer, this, HttpStateData::wroteLast); | |
e0d28505 | 2227 | comm_write(serverConnection, "\r\n", 2, requestSender); |
39cb8c41 AR |
2228 | return true; |
2229 | #else | |
2230 | return false; | |
626096be | 2231 | #endif /* USE_HTTP_VIOLATIONS */ |
39cb8c41 AR |
2232 | } |
2233 | ||
2234 | /// if needed, write last-chunk to end the request body and return true | |
2235 | bool | |
2236 | HttpStateData::finishingChunkedRequest() | |
2237 | { | |
2238 | if (flags.sentLastChunk) { | |
2239 | debugs(11, 5, HERE << "already sent last-chunk"); | |
2240 | return false; | |
2241 | } | |
2242 | ||
2243 | Must(receivedWholeRequestBody); // or we should not be sending last-chunk | |
2244 | flags.sentLastChunk = true; | |
2245 | ||
2246 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
e0d28505 AJ |
2247 | requestSender = JobCallback(11,5, Dialer, this, HttpStateData::wroteLast); |
2248 | comm_write(serverConnection, "0\r\n\r\n", 5, requestSender); | |
39cb8c41 AR |
2249 | return true; |
2250 | } | |
2251 | ||
2252 | void | |
2253 | HttpStateData::doneSendingRequestBody() | |
2254 | { | |
2255 | ServerStateData::doneSendingRequestBody(); | |
9cf7de1b | 2256 | debugs(11,5, HERE << serverConnection); |
39cb8c41 AR |
2257 | |
2258 | // do we need to write something after the last body byte? | |
e31a1e67 | 2259 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2260 | return; |
e31a1e67 | 2261 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2262 | return; |
aa49962c | 2263 | |
39cb8c41 | 2264 | sendComplete(); |
94439e4e | 2265 | } |
2266 | ||
5f8252d2 | 2267 | // more origin request body data is available |
2bb867b5 | 2268 | void |
5f8252d2 | 2269 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2270 | { |
6b679a01 | 2271 | if (eof || !Comm::IsConnOpen(serverConnection)) { |
5f8252d2 | 2272 | // XXX: we should check this condition in other callbacks then! |
2273 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2274 | // as a body consumer when the above condition(s) are detected. | |
2bb867b5 | 2275 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2276 | return; |
2277 | } | |
62e76326 | 2278 | |
5f8252d2 | 2279 | assert(requestBodySource != NULL); |
fc68f6b1 | 2280 | |
5f8252d2 | 2281 | if (requestBodySource->buf().hasContent()) { |
2282 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2283 | |
2bb867b5 | 2284 | if (flags.headers_parsed && !flags.abuse_detected) { |
2285 | flags.abuse_detected = 1; | |
cc192b50 | 2286 | debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << orig_request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2287 | |
585ab260 | 2288 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
8d71285d | 2289 | serverConnection->close(); |
21b92762 | 2290 | return; |
2291 | } | |
2292 | } | |
b6a2f15e | 2293 | } |
5f8252d2 | 2294 | |
2295 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2296 | } |
2297 | ||
5f8252d2 | 2298 | // premature end of the request body |
2bb867b5 | 2299 | void |
5f8252d2 | 2300 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2301 | { |
5f8252d2 | 2302 | ServerStateData::handleRequestBodyProducerAborted(); |
64b66b76 CT |
2303 | if (entry->isEmpty()) { |
2304 | debugs(11, 3, "request body aborted: FD " << fd); | |
2305 | ErrorState *err; | |
2306 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
2307 | err->xerrno = errno; | |
2308 | fwd->fail(err); | |
2309 | } | |
2310 | ||
39cb8c41 | 2311 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2312 | } |
2313 | ||
5f8252d2 | 2314 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2315 | void |
dc56a9b1 | 2316 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2317 | { |
dc56a9b1 | 2318 | if (io.size > 0) |
2319 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2320 | |
dc56a9b1 | 2321 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2322 | } |
3b299123 | 2323 | |
5f8252d2 | 2324 | // Quickly abort the transaction |
2325 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2326 | // including canceling close handlers | |
2327 | void | |
2328 | HttpStateData::abortTransaction(const char *reason) | |
2329 | { | |
2330 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
9cf7de1b | 2331 | "; " << serverConnection << ", this " << this); |
fc68f6b1 | 2332 | |
be364179 | 2333 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d | 2334 | serverConnection->close(); |
3e8c047e | 2335 | return; |
c23f0c74 | 2336 | } |
3e8c047e | 2337 | |
2338 | fwd->handleUnregisteredServerEnd(); | |
dc56a9b1 | 2339 | deleteThis("HttpStateData::abortTransaction"); |
54220df8 | 2340 | } |
ccf44862 | 2341 | |
7c4e4e7f | 2342 | HttpRequest * |
2343 | HttpStateData::originalRequest() | |
2afaba07 | 2344 | { |
7c4e4e7f | 2345 | return orig_request; |
2afaba07 | 2346 | } |