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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
262a0e14 | 3 | * $Id$ |
30a4f2a8 | 4 | * |
5 | * DEBUG: section 11 Hypertext Transfer Protocol (HTTP) | |
6 | * AUTHOR: Harvest Derived | |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 9 | * ---------------------------------------------------------- |
30a4f2a8 | 10 | * |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
9e008dda | 24 | * |
30a4f2a8 | 25 | * This program is distributed in the hope that it will be useful, |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
9e008dda | 29 | * |
30a4f2a8 | 30 | * You should have received a copy of the GNU General Public License |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
30a4f2a8 | 34 | */ |
019dd986 | 35 | |
4a83b852 | 36 | /* |
37 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 38 | * have a look into http-anon.c to get more informations. |
4a83b852 | 39 | */ |
40 | ||
44a47c6e | 41 | #include "squid.h" |
9ca29d23 AJ |
42 | |
43 | #include "acl/FilledChecklist.h" | |
2f1431ea | 44 | #if USE_AUTH |
9ca29d23 | 45 | #include "auth/UserRequest.h" |
2f1431ea | 46 | #endif |
655daa06 | 47 | #include "base/AsyncJobCalls.h" |
3d93a84d | 48 | #include "base/TextException.h" |
25f98340 | 49 | #include "base64.h" |
ec41b64c | 50 | #include "comm/Write.h" |
9a0a18de | 51 | #if USE_DELAY_POOLS |
9ca29d23 AJ |
52 | #include "DelayPools.h" |
53 | #endif | |
aa839030 | 54 | #include "errorpage.h" |
e6ccf245 | 55 | #include "http.h" |
655daa06 | 56 | #include "HttpControlMsg.h" |
528b2c61 | 57 | #include "HttpHdrContRange.h" |
b19dd748 | 58 | #include "HttpHdrSc.h" |
59 | #include "HttpHdrScTarget.h" | |
9ca29d23 AJ |
60 | #include "HttpReply.h" |
61 | #include "HttpRequest.h" | |
62 | #include "MemBuf.h" | |
63 | #include "MemObject.h" | |
64 | #include "protos.h" | |
1fa9b1a7 | 65 | #include "rfc1738.h" |
985c86bc | 66 | #include "SquidTime.h" |
9ca29d23 | 67 | #include "Store.h" |
af0bb8e5 | 68 | |
9ca29d23 | 69 | |
af0bb8e5 | 70 | #define SQUID_ENTER_THROWING_CODE() try { |
71 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
72 | status = true; \ | |
73 | } \ | |
0a8bbeeb AR |
74 | catch (const std::exception &e) { \ |
75 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 76 | status = false; \ |
9e008dda | 77 | } |
e6ccf245 | 78 | |
2afaba07 | 79 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 80 | |
6bf8443a | 81 | static const char *const crlf = "\r\n"; |
4db43fab | 82 | |
f9cece6e | 83 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
9e498bfb AJ |
84 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, HttpRequest * request, const HttpRequest * orig_request, |
85 | HttpHeader * hdr_out, const int we_do_ranges, const http_state_flags); | |
528b2c61 | 86 | |
dc56a9b1 | 87 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
e1381638 AJ |
88 | lastChunk(0), header_bytes_read(0), reply_bytes_read(0), |
89 | body_bytes_truncated(0), httpChunkDecoder(NULL) | |
2bb867b5 | 90 | { |
91 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 92 | ignoreCacheControl = false; |
93 | surrogateNoStore = false; | |
a3d50c30 | 94 | fd = fwd->server_fd; |
95 | readBuf = new MemBuf; | |
4b6af349 | 96 | readBuf->init(); |
6dd9f4bd | 97 | orig_request = HTTPMSGLOCK(fwd->request); |
a3d50c30 | 98 | |
3ff65596 AR |
99 | // reset peer response time stats for %<pt |
100 | orig_request->hier.peer_http_request_sent.tv_sec = 0; | |
101 | orig_request->hier.peer_http_request_sent.tv_usec = 0; | |
102 | ||
a3d50c30 | 103 | if (fwd->servers) |
104 | _peer = fwd->servers->_peer; /* might be NULL */ | |
105 | ||
106 | if (_peer) { | |
107 | const char *url; | |
108 | ||
109 | if (_peer->options.originserver) | |
d53b3f6d | 110 | url = orig_request->urlpath.termedBuf(); |
a3d50c30 | 111 | else |
3900307b | 112 | url = entry->url(); |
a3d50c30 | 113 | |
5cafad19 | 114 | HttpRequest * proxy_req = new HttpRequest(orig_request->method, |
9e008dda | 115 | orig_request->protocol, url); |
a3d50c30 | 116 | |
cc192b50 | 117 | proxy_req->SetHost(_peer->host); |
a3d50c30 | 118 | |
119 | proxy_req->port = _peer->http_port; | |
120 | ||
121 | proxy_req->flags = orig_request->flags; | |
122 | ||
123 | proxy_req->lastmod = orig_request->lastmod; | |
124 | ||
125 | proxy_req->flags.proxying = 1; | |
126 | ||
6dd9f4bd | 127 | HTTPMSGUNLOCK(request); |
253caccb | 128 | |
6dd9f4bd | 129 | request = HTTPMSGLOCK(proxy_req); |
a3d50c30 | 130 | |
131 | /* | |
132 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
133 | * We might end up getting the object from somewhere else if, | |
134 | * for example, the request to this neighbor fails. | |
135 | */ | |
136 | if (_peer->options.proxy_only) | |
d88e3c49 | 137 | entry->releaseRequest(); |
a3d50c30 | 138 | |
9a0a18de | 139 | #if USE_DELAY_POOLS |
a3d50c30 | 140 | entry->setNoDelay(_peer->options.no_delay); |
a3d50c30 | 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; |
4299f876 | 148 | closeHandler = JobCallback(9, 5, |
4cb2536f | 149 | Dialer, this, HttpStateData::httpStateConnClosed); |
dc56a9b1 | 150 | comm_add_close_handler(fd, closeHandler); |
2bb867b5 | 151 | } |
b8d8561b | 152 | |
2afaba07 | 153 | HttpStateData::~HttpStateData() |
f5558c95 | 154 | { |
253caccb | 155 | /* |
3b299123 | 156 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 157 | */ |
158 | ||
2afaba07 | 159 | if (!readBuf->isNull()) |
160 | readBuf->clean(); | |
62e76326 | 161 | |
2afaba07 | 162 | delete readBuf; |
163 | ||
9e008dda AJ |
164 | if (httpChunkDecoder) |
165 | delete httpChunkDecoder; | |
af0bb8e5 | 166 | |
6dd9f4bd | 167 | HTTPMSGUNLOCK(orig_request); |
2afaba07 | 168 | |
5f8252d2 | 169 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; FD " << fd); |
170 | } | |
171 | ||
172 | int | |
fc68f6b1 | 173 | HttpStateData::dataDescriptor() const |
174 | { | |
5f8252d2 | 175 | return fd; |
2afaba07 | 176 | } |
dc56a9b1 | 177 | /* |
2afaba07 | 178 | static void |
179 | httpStateFree(int fd, void *data) | |
180 | { | |
181 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
bf8fe701 | 182 | debugs(11, 5, "httpStateFree: FD " << fd << ", httpState=" << data); |
5f8252d2 | 183 | delete httpState; |
dc56a9b1 | 184 | }*/ |
185 | ||
9e008dda | 186 | void |
dc56a9b1 | 187 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
188 | { | |
189 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
190 | deleteThis("HttpStateData::httpStateConnClosed"); | |
f5558c95 | 191 | } |
192 | ||
b8d8561b | 193 | int |
60745f24 | 194 | httpCachable(const HttpRequestMethod& method) |
090089c4 | 195 | { |
090089c4 | 196 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 197 | |
9e008dda | 198 | // TODO: replase to HttpRequestMethod::isCachable() ? |
6eb42cae | 199 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 200 | return 0; |
201 | ||
090089c4 | 202 | /* else cachable */ |
203 | return 1; | |
204 | } | |
205 | ||
dc56a9b1 | 206 | void |
207 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 208 | { |
bf8fe701 | 209 | debugs(11, 4, "httpTimeout: FD " << fd << ": '" << entry->url() << "'" ); |
62e76326 | 210 | |
12158bdc | 211 | if (entry->store_status == STORE_PENDING) { |
dc56a9b1 | 212 | fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 213 | } |
62e76326 | 214 | |
0d4d4170 | 215 | comm_close(fd); |
090089c4 | 216 | } |
217 | ||
f9cece6e | 218 | static void |
219 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
220 | { | |
914b89a2 | 221 | int remove = 0; |
7e3ce7b9 | 222 | int forbidden = 0; |
f9cece6e | 223 | StoreEntry *pe; |
62e76326 | 224 | |
d46a87a8 | 225 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 226 | return; |
227 | ||
f9cece6e | 228 | switch (status) { |
62e76326 | 229 | |
f9cece6e | 230 | case HTTP_OK: |
62e76326 | 231 | |
f9cece6e | 232 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 233 | |
f9cece6e | 234 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 235 | |
f9cece6e | 236 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 237 | |
f9cece6e | 238 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 239 | |
f9cece6e | 240 | case HTTP_GONE: |
62e76326 | 241 | |
7e3ce7b9 | 242 | case HTTP_NOT_FOUND: |
914b89a2 | 243 | remove = 1; |
62e76326 | 244 | |
245 | break; | |
246 | ||
7e3ce7b9 | 247 | case HTTP_FORBIDDEN: |
62e76326 | 248 | |
7e3ce7b9 | 249 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 250 | forbidden = 1; |
251 | ||
252 | break; | |
253 | ||
f9cece6e | 254 | #if WORK_IN_PROGRESS |
62e76326 | 255 | |
c8fd0193 | 256 | case HTTP_UNAUTHORIZED: |
62e76326 | 257 | forbidden = 1; |
258 | ||
259 | break; | |
260 | ||
f9cece6e | 261 | #endif |
62e76326 | 262 | |
f9cece6e | 263 | default: |
7e3ce7b9 | 264 | #if QUESTIONABLE |
62e76326 | 265 | /* |
266 | * Any 2xx response should eject previously cached entities... | |
267 | */ | |
abb929f0 | 268 | |
62e76326 | 269 | if (status >= 200 && status < 300) |
914b89a2 | 270 | remove = 1; |
62e76326 | 271 | |
7e3ce7b9 | 272 | #endif |
62e76326 | 273 | |
274 | break; | |
f9cece6e | 275 | } |
62e76326 | 276 | |
914b89a2 | 277 | if (!remove && !forbidden) |
62e76326 | 278 | return; |
279 | ||
f9cece6e | 280 | assert(e->mem_obj); |
62e76326 | 281 | |
f66a9ef4 | 282 | if (e->mem_obj->request) |
62e76326 | 283 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 284 | else |
62e76326 | 285 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
286 | ||
f66a9ef4 | 287 | if (pe != NULL) { |
62e76326 | 288 | assert(e != pe); |
d9129474 | 289 | #if USE_HTCP |
8dceeee3 | 290 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 291 | #endif |
5f33b71d | 292 | pe->release(); |
0856d155 | 293 | } |
62e76326 | 294 | |
914b89a2 | 295 | /** \par |
7e3ce7b9 | 296 | * Also remove any cached HEAD response in case the object has |
297 | * changed. | |
298 | */ | |
f66a9ef4 | 299 | if (e->mem_obj->request) |
62e76326 | 300 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 301 | else |
62e76326 | 302 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
303 | ||
f66a9ef4 | 304 | if (pe != NULL) { |
62e76326 | 305 | assert(e != pe); |
d9129474 | 306 | #if USE_HTCP |
8dceeee3 | 307 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 308 | #endif |
5f33b71d | 309 | pe->release(); |
7e3ce7b9 | 310 | } |
f9cece6e | 311 | } |
312 | ||
43ae1d95 | 313 | void |
314 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
315 | { | |
43ae1d95 | 316 | if (request->flags.accelerated && reply->surrogate_control) { |
45cca89d | 317 | HttpHdrScTarget *sctusable = httpHdrScGetMergedTarget(reply->surrogate_control, Config.Accel.surrogate_id); |
43ae1d95 | 318 | |
319 | if (sctusable) { | |
320 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
321 | (Config.onoff.surrogate_is_remote | |
322 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
323 | surrogateNoStore = true; | |
5ed72359 | 324 | entry->makePrivate(); |
43ae1d95 | 325 | } |
326 | ||
327 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
328 | * accelerated request or not... | |
45cca89d | 329 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 330 | */ |
331 | if (sctusable->max_age != -1) { | |
332 | if (sctusable->max_age < sctusable->max_stale) | |
333 | reply->expires = reply->date + sctusable->max_age; | |
334 | else | |
335 | reply->expires = reply->date + sctusable->max_stale; | |
336 | ||
337 | /* And update the timestamps */ | |
3900307b | 338 | entry->timestampsSet(); |
43ae1d95 | 339 | } |
340 | ||
341 | /* We ignore cache-control directives as per the Surrogate specification */ | |
342 | ignoreCacheControl = true; | |
343 | ||
344 | httpHdrScTargetDestroy(sctusable); | |
345 | } | |
346 | } | |
43ae1d95 | 347 | } |
348 | ||
924f73bc | 349 | int |
350 | HttpStateData::cacheableReply() | |
c54e9052 | 351 | { |
585ab260 | 352 | HttpReply const *rep = finalReply(); |
528b2c61 | 353 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 354 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 355 | const char *v; |
626096be | 356 | #if USE_HTTP_VIOLATIONS |
62e76326 | 357 | |
38f9c547 | 358 | const refresh_t *R = NULL; |
b6445726 | 359 | |
346be6ad | 360 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 361 | * and then checks if the specified flag is set. The main purpose |
626096be | 362 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 363 | * condition |
364 | */ | |
365 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 366 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
367 | (R && R->flags.flag)) | |
b445957e | 368 | #else |
369 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 370 | #endif |
43ae1d95 | 371 | |
38f9c547 | 372 | if (surrogateNoStore) |
62e76326 | 373 | return 0; |
374 | ||
8466a4af AR |
375 | // RFC 2616: do not cache replies to responses with no-store CC directive |
376 | if (request && request->cache_control && | |
ab745b44 A |
377 | EBIT_TEST(request->cache_control->mask, CC_NO_STORE) && |
378 | !REFRESH_OVERRIDE(ignore_no_store)) | |
8466a4af AR |
379 | return 0; |
380 | ||
924f73bc | 381 | if (!ignoreCacheControl) { |
38f9c547 | 382 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 383 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 384 | return 0; |
385 | } | |
386 | ||
387 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 388 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 389 | return 0; |
390 | } | |
391 | ||
392 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 393 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 394 | return 0; |
395 | } | |
43ae1d95 | 396 | } |
397 | ||
d67acb4e | 398 | if (request->flags.auth || request->flags.auth_sent) { |
62e76326 | 399 | /* |
400 | * Responses to requests with authorization may be cached | |
401 | * only if a Cache-Control: public reply header is present. | |
402 | * RFC 2068, sec 14.9.4 | |
403 | */ | |
404 | ||
38f9c547 | 405 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 406 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 407 | return 0; |
408 | } | |
a6dfe2d9 | 409 | } |
62e76326 | 410 | |
c68e9c6b | 411 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
412 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 413 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 414 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 415 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 416 | s.clean(); |
62e76326 | 417 | |
38f9c547 | 418 | if (no_cache) { |
b6445726 | 419 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 420 | return 0; |
421 | } | |
c68e9c6b | 422 | } |
62e76326 | 423 | |
c68e9c6b | 424 | /* |
425 | * The "multipart/x-mixed-replace" content type is used for | |
426 | * continuous push replies. These are generally dynamic and | |
427 | * probably should not be cachable | |
428 | */ | |
a9925b40 | 429 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 430 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
431 | return 0; | |
432 | ||
585ab260 | 433 | switch (rep->sline.status) { |
62e76326 | 434 | /* Responses that are cacheable */ |
435 | ||
19a04dac | 436 | case HTTP_OK: |
62e76326 | 437 | |
19a04dac | 438 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 439 | |
19a04dac | 440 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 441 | |
19a04dac | 442 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 443 | |
19a04dac | 444 | case HTTP_GONE: |
62e76326 | 445 | /* |
446 | * Don't cache objects that need to be refreshed on next request, | |
447 | * unless we know how to refresh it. | |
448 | */ | |
449 | ||
3d8b6ba4 | 450 | if (!refreshIsCachable(entry) && !REFRESH_OVERRIDE(store_stale)) { |
bf8fe701 | 451 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 452 | return 0; |
ca34dacd | 453 | } else |
62e76326 | 454 | return 1; |
455 | ||
62e76326 | 456 | /* NOTREACHED */ |
457 | break; | |
458 | ||
459 | /* Responses that only are cacheable if the server says so */ | |
460 | ||
19a04dac | 461 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 462 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 463 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 464 | return 1; |
465 | else | |
466 | return 0; | |
467 | ||
468 | /* NOTREACHED */ | |
469 | break; | |
470 | ||
471 | /* Errors can be negatively cached */ | |
472 | ||
19a04dac | 473 | case HTTP_NO_CONTENT: |
62e76326 | 474 | |
19a04dac | 475 | case HTTP_USE_PROXY: |
62e76326 | 476 | |
19a04dac | 477 | case HTTP_BAD_REQUEST: |
62e76326 | 478 | |
19a04dac | 479 | case HTTP_FORBIDDEN: |
62e76326 | 480 | |
19a04dac | 481 | case HTTP_NOT_FOUND: |
62e76326 | 482 | |
19a04dac | 483 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 484 | |
19a04dac | 485 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 488 | |
19a04dac | 489 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 490 | |
19a04dac | 491 | case HTTP_BAD_GATEWAY: |
62e76326 | 492 | |
19a04dac | 493 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 494 | |
19a04dac | 495 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 496 | return -1; |
497 | ||
498 | /* NOTREACHED */ | |
499 | break; | |
500 | ||
501 | /* Some responses can never be cached */ | |
502 | ||
0cdcddb9 | 503 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 504 | |
19a04dac | 505 | case HTTP_SEE_OTHER: |
62e76326 | 506 | |
19a04dac | 507 | case HTTP_NOT_MODIFIED: |
62e76326 | 508 | |
19a04dac | 509 | case HTTP_UNAUTHORIZED: |
62e76326 | 510 | |
19a04dac | 511 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 512 | |
0cdcddb9 | 513 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 514 | |
515 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 516 | |
517 | case HTTP_PAYMENT_REQUIRED: | |
518 | case HTTP_NOT_ACCEPTABLE: | |
519 | case HTTP_REQUEST_TIMEOUT: | |
520 | case HTTP_CONFLICT: | |
521 | case HTTP_LENGTH_REQUIRED: | |
522 | case HTTP_PRECONDITION_FAILED: | |
523 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
524 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
525 | case HTTP_UNPROCESSABLE_ENTITY: | |
526 | case HTTP_LOCKED: | |
527 | case HTTP_FAILED_DEPENDENCY: | |
528 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 529 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
530 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 531 | |
62e76326 | 532 | return 0; |
533 | ||
41217979 AJ |
534 | default: |
535 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
536 | debugs (11, 3, HERE << "Unknown HTTP status code " << rep->sline.status << ". Not cacheable."); | |
62e76326 | 537 | |
538 | return 0; | |
539 | ||
540 | /* NOTREACHED */ | |
541 | break; | |
c54e9052 | 542 | } |
62e76326 | 543 | |
79d39a72 | 544 | /* NOTREACHED */ |
c54e9052 | 545 | } |
090089c4 | 546 | |
f66a9ef4 | 547 | /* |
9e008dda | 548 | * For Vary, store the relevant request headers as |
f66a9ef4 | 549 | * virtual headers in the reply |
550 | * Returns false if the variance cannot be stored | |
551 | */ | |
552 | const char * | |
190154cf | 553 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 554 | { |
30abd221 | 555 | String vary, hdr; |
f66a9ef4 | 556 | const char *pos = NULL; |
557 | const char *item; | |
558 | const char *value; | |
559 | int ilen; | |
30abd221 | 560 | static String vstr; |
f66a9ef4 | 561 | |
30abd221 | 562 | vstr.clean(); |
a9925b40 | 563 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 564 | |
f66a9ef4 | 565 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 566 | char *name = (char *)xmalloc(ilen + 1); |
567 | xstrncpy(name, item, ilen + 1); | |
568 | Tolower(name); | |
9776e3cc | 569 | |
570 | if (strcmp(name, "*") == 0) { | |
571 | /* Can not handle "Vary: *" withtout ETag support */ | |
572 | safe_free(name); | |
30abd221 | 573 | vstr.clean(); |
9776e3cc | 574 | break; |
575 | } | |
576 | ||
62e76326 | 577 | strListAdd(&vstr, name, ','); |
a9925b40 | 578 | hdr = request->header.getByName(name); |
62e76326 | 579 | safe_free(name); |
d53b3f6d | 580 | value = hdr.termedBuf(); |
62e76326 | 581 | |
582 | if (value) { | |
583 | value = rfc1738_escape_part(value); | |
584 | vstr.append("=\"", 2); | |
585 | vstr.append(value); | |
586 | vstr.append("\"", 1); | |
587 | } | |
588 | ||
30abd221 | 589 | hdr.clean(); |
f66a9ef4 | 590 | } |
62e76326 | 591 | |
30abd221 | 592 | vary.clean(); |
f66a9ef4 | 593 | #if X_ACCELERATOR_VARY |
62e76326 | 594 | |
aa38be4a | 595 | pos = NULL; |
a9925b40 | 596 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 597 | |
f66a9ef4 | 598 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 599 | char *name = (char *)xmalloc(ilen + 1); |
600 | xstrncpy(name, item, ilen + 1); | |
601 | Tolower(name); | |
602 | strListAdd(&vstr, name, ','); | |
a9925b40 | 603 | hdr = request->header.getByName(name); |
62e76326 | 604 | safe_free(name); |
d53b3f6d | 605 | value = hdr.termedBuf(); |
62e76326 | 606 | |
607 | if (value) { | |
608 | value = rfc1738_escape_part(value); | |
609 | vstr.append("=\"", 2); | |
610 | vstr.append(value); | |
611 | vstr.append("\"", 1); | |
612 | } | |
613 | ||
30abd221 | 614 | hdr.clean(); |
f66a9ef4 | 615 | } |
62e76326 | 616 | |
30abd221 | 617 | vary.clean(); |
f66a9ef4 | 618 | #endif |
62e76326 | 619 | |
d53b3f6d FC |
620 | debugs(11, 3, "httpMakeVaryMark: " << vstr); |
621 | return vstr.termedBuf(); | |
f66a9ef4 | 622 | } |
623 | ||
2afaba07 | 624 | void |
625 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
626 | { | |
627 | if (flags.keepalive) | |
628 | if (_peer) | |
629 | _peer->stats.n_keepalives_sent++; | |
630 | ||
631 | if (reply->keep_alive) { | |
632 | if (_peer) | |
633 | _peer->stats.n_keepalives_recv++; | |
634 | ||
af6a12ee AJ |
635 | if (Config.onoff.detect_broken_server_pconns |
636 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
bf8fe701 | 637 | debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
638 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); | |
2afaba07 | 639 | flags.keepalive_broken = 1; |
640 | } | |
641 | } | |
642 | } | |
643 | ||
644 | void | |
645 | HttpStateData::checkDateSkew(HttpReply *reply) | |
646 | { | |
647 | if (reply->date > -1 && !_peer) { | |
648 | int skew = abs((int)(reply->date - squid_curtime)); | |
649 | ||
650 | if (skew > 86400) | |
cc192b50 | 651 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 652 | } |
653 | } | |
654 | ||
073ba374 | 655 | /** |
4eb368f9 | 656 | * This creates the error page itself.. its likely |
657 | * that the forward ported reply header max size patch | |
658 | * generates non http conformant error pages - in which | |
659 | * case the errors where should be 'BAD_GATEWAY' etc | |
660 | */ | |
b8d8561b | 661 | void |
2afaba07 | 662 | HttpStateData::processReplyHeader() |
f5558c95 | 663 | { |
073ba374 | 664 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 AJ |
665 | |
666 | /* NP: all exit points to this function MUST call ctx_exit(ctx) */ | |
82384411 | 667 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
859f1666 | 668 | |
bf8fe701 | 669 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 670 | |
1a98175f | 671 | assert(!flags.headers_parsed); |
62e76326 | 672 | |
859f1666 AJ |
673 | if (!readBuf->hasContent()) { |
674 | ctx_exit(ctx); | |
b73a07d6 | 675 | return; |
859f1666 | 676 | } |
b73a07d6 | 677 | |
2afaba07 | 678 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 679 | |
585ab260 | 680 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 681 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 682 | |
e77d7ef0 | 683 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0 && strncmp(readBuf->content(), "ICY", 3) != 0) { |
9e008dda AJ |
684 | MemBuf *mb; |
685 | HttpReply *tmprep = new HttpReply; | |
11992b6f | 686 | tmprep->setHeaders(HTTP_OK, "Gatewaying", NULL, -1, -1, -1); |
9e008dda AJ |
687 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); |
688 | mb = tmprep->pack(); | |
689 | newrep->parse(mb, eof, &error); | |
ddbe383d | 690 | delete mb; |
9e008dda AJ |
691 | delete tmprep; |
692 | } else { | |
693 | if (!parsed && error > 0) { // unrecoverable parsing error | |
694 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
695 | flags.headers_parsed = 1; | |
871c031f | 696 | newrep->sline.version = HttpVersion(1,1); |
9e008dda AJ |
697 | newrep->sline.status = error; |
698 | HttpReply *vrep = setVirginReply(newrep); | |
699 | entry->replaceHttpReply(vrep); | |
700 | ctx_exit(ctx); | |
701 | return; | |
702 | } | |
703 | ||
704 | if (!parsed) { // need more data | |
705 | assert(!error); | |
706 | assert(!eof); | |
707 | delete newrep; | |
708 | ctx_exit(ctx); | |
709 | return; | |
710 | } | |
711 | ||
712 | debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------"); | |
713 | ||
714 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
715 | readBuf->consume(header_bytes_read); | |
f5558c95 | 716 | } |
62e76326 | 717 | |
c679653d AR |
718 | newrep->removeStaleWarnings(); |
719 | ||
0c3d3f65 | 720 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->sline.status >= 100 && newrep->sline.status < 200) { |
655daa06 | 721 | handle1xx(newrep); |
3d9e71e6 | 722 | ctx_exit(ctx); |
3d9e71e6 AJ |
723 | return; |
724 | } | |
725 | ||
af0bb8e5 | 726 | flags.chunked = 0; |
0c3d3f65 | 727 | if (newrep->sline.protocol == AnyP::PROTO_HTTP && newrep->header.chunked()) { |
9e008dda AJ |
728 | flags.chunked = 1; |
729 | httpChunkDecoder = new ChunkedCodingParser; | |
af0bb8e5 | 730 | } |
731 | ||
9e008dda AJ |
732 | if (!peerSupportsConnectionPinning()) |
733 | orig_request->flags.connection_auth_disabled = 1; | |
d67acb4e | 734 | |
585ab260 | 735 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 736 | flags.headers_parsed = 1; |
737 | ||
585ab260 | 738 | keepaliveAccounting(vrep); |
47ac2ebe | 739 | |
585ab260 | 740 | checkDateSkew(vrep); |
47ac2ebe | 741 | |
585ab260 | 742 | processSurrogateControl (vrep); |
528b2c61 | 743 | |
073ba374 | 744 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 745 | * Parse the header and remove all referenced headers |
746 | */ | |
747 | ||
3ff65596 AR |
748 | orig_request->hier.peer_reply_status = newrep->sline.status; |
749 | ||
2afaba07 | 750 | ctx_exit(ctx); |
751 | } | |
752 | ||
655daa06 AR |
753 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
754 | void | |
755 | HttpStateData::handle1xx(HttpReply *reply) | |
756 | { | |
757 | HttpMsgPointerT<HttpReply> msg(reply); // will destroy reply if unused | |
758 | ||
759 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
760 | Must(!flags.handling1xx); | |
761 | flags.handling1xx = true; | |
762 | ||
763 | if (!orig_request->canHandle1xx()) { | |
764 | debugs(11, 2, HERE << "ignoring client-unsupported 1xx"); | |
765 | proceedAfter1xx(); | |
766 | return; | |
767 | } | |
768 | ||
769 | #if USE_HTTP_VIOLATIONS | |
770 | // check whether the 1xx response forwarding is allowed by squid.conf | |
771 | if (Config.accessList.reply) { | |
772 | ACLFilledChecklist ch(Config.accessList.reply, request, NULL); | |
773 | ch.reply = HTTPMSGLOCK(reply); | |
774 | if (!ch.fastCheck()) { // TODO: support slow lookups? | |
775 | debugs(11, 3, HERE << "ignoring denied 1xx"); | |
776 | proceedAfter1xx(); | |
777 | return; | |
de48b288 | 778 | } |
655daa06 AR |
779 | } |
780 | #endif // USE_HTTP_VIOLATIONS | |
781 | ||
782 | debugs(11, 2, HERE << "forwarding 1xx to client"); | |
783 | ||
784 | // the Sink will use this to call us back after writing 1xx to the client | |
785 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
786 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 787 | HttpStateData::proceedAfter1xx); |
655daa06 AR |
788 | CallJobHere1(11, 4, orig_request->clientConnection, ConnStateData, |
789 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); | |
790 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
791 | // will terminate due to an aborted store entry or another similar error. | |
792 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
793 | // for similar reasons without a 1xx response. | |
794 | } | |
795 | ||
796 | /// restores state and resumes processing after 1xx is ignored or forwarded | |
797 | void | |
798 | HttpStateData::proceedAfter1xx() | |
799 | { | |
800 | Must(flags.handling1xx); | |
801 | ||
802 | debugs(11, 2, HERE << "consuming " << header_bytes_read << | |
de48b288 | 803 | " header and " << reply_bytes_read << " body bytes read after 1xx"); |
655daa06 AR |
804 | header_bytes_read = 0; |
805 | reply_bytes_read = 0; | |
806 | ||
807 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); | |
808 | } | |
809 | ||
810 | ||
d67acb4e AJ |
811 | /** |
812 | * returns true if the peer can support connection pinning | |
813 | */ | |
814 | bool HttpStateData::peerSupportsConnectionPinning() const | |
815 | { | |
816 | const HttpReply *rep = entry->mem_obj->getReply(); | |
817 | const HttpHeader *hdr = &rep->header; | |
818 | bool rc; | |
819 | String header; | |
820 | ||
821 | if (!_peer) | |
9e008dda AJ |
822 | return true; |
823 | ||
824 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
825 | connections) return false |
826 | */ | |
827 | if (!_peer->connection_auth) | |
9e008dda | 828 | return false; |
d67acb4e | 829 | |
9e008dda | 830 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
831 | is not unauthorized, so the related connection can be pinned |
832 | */ | |
833 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
834 | return true; |
835 | ||
836 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
837 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
838 | connections |
839 | */ | |
840 | if (_peer->connection_auth == 1) | |
9e008dda | 841 | return true; |
d67acb4e | 842 | |
9e008dda AJ |
843 | /*At this point peer has configured with "connection-auth=auto" |
844 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
845 | to allow pinned connections or not |
846 | */ | |
847 | ||
9e008dda | 848 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
849 | pinning (squid 2.6 behaviour) |
850 | */ | |
851 | if (_peer->options.originserver) | |
9e008dda | 852 | return true; |
d67acb4e AJ |
853 | |
854 | /*if the connections it is already pinned it is OK*/ | |
855 | if (request->flags.pinned) | |
9e008dda AJ |
856 | return true; |
857 | ||
858 | /*Allow pinned connections only if the Proxy-support header exists in | |
859 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
860 | which means that the peer supports connection pinning. |
861 | */ | |
862 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 863 | return false; |
d67acb4e AJ |
864 | |
865 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
866 | /* XXX This ought to be done in a case-insensitive manner */ | |
d53b3f6d | 867 | rc = (strstr(header.termedBuf(), "Session-Based-Authentication") != NULL); |
d67acb4e AJ |
868 | |
869 | return rc; | |
870 | } | |
871 | ||
5f8252d2 | 872 | // Called when we parsed (and possibly adapted) the headers but |
873 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 874 | void |
875 | HttpStateData::haveParsedReplyHeaders() | |
876 | { | |
c1520b67 AJ |
877 | ServerStateData::haveParsedReplyHeaders(); |
878 | ||
2afaba07 | 879 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 880 | HttpReply *rep = finalReply(); |
2afaba07 | 881 | |
585ab260 | 882 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
883 | rep->content_range) | |
884 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 885 | |
3900307b | 886 | entry->timestampsSet(); |
62e76326 | 887 | |
9bc73deb | 888 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 889 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 890 | |
9bc73deb | 891 | if (neighbors_do_private_keys) |
585ab260 | 892 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 893 | |
585ab260 | 894 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 895 | #if X_ACCELERATOR_VARY |
585ab260 | 896 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 897 | #endif |
4b44c907 | 898 | ) { |
585ab260 | 899 | const char *vary = httpMakeVaryMark(orig_request, rep); |
4b44c907 | 900 | |
901 | if (!vary) { | |
5ed72359 | 902 | entry->makePrivate(); |
d7d3253b AJ |
903 | if (!fwd->reforwardableStatus(rep->sline.status)) |
904 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); | |
4b44c907 | 905 | goto no_cache; |
62e76326 | 906 | } |
907 | ||
4b44c907 | 908 | entry->mem_obj->vary_headers = xstrdup(vary); |
909 | } | |
910 | ||
2afaba07 | 911 | /* |
912 | * If its not a reply that we will re-forward, then | |
913 | * allow the client to get it. | |
914 | */ | |
585ab260 | 915 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 916 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
917 | ||
4b44c907 | 918 | switch (cacheableReply()) { |
919 | ||
920 | case 1: | |
5ed72359 | 921 | entry->makePublic(); |
62e76326 | 922 | break; |
923 | ||
9bc73deb | 924 | case 0: |
5ed72359 | 925 | entry->makePrivate(); |
62e76326 | 926 | break; |
927 | ||
9bc73deb | 928 | case -1: |
4b44c907 | 929 | |
626096be | 930 | #if USE_HTTP_VIOLATIONS |
4b44c907 | 931 | if (Config.negativeTtl > 0) |
5ed72359 | 932 | entry->cacheNegatively(); |
4b44c907 | 933 | else |
ac9cc053 | 934 | #endif |
5ed72359 | 935 | entry->makePrivate(); |
4b44c907 | 936 | |
62e76326 | 937 | break; |
938 | ||
9bc73deb | 939 | default: |
62e76326 | 940 | assert(0); |
4b44c907 | 941 | |
62e76326 | 942 | break; |
9bc73deb | 943 | } |
62e76326 | 944 | |
4b44c907 | 945 | no_cache: |
946 | ||
585ab260 | 947 | if (!ignoreCacheControl && rep->cache_control) { |
7948b784 | 948 | if (EBIT_TEST(rep->cache_control->mask, CC_PROXY_REVALIDATE) || |
477438e1 A |
949 | EBIT_TEST(rep->cache_control->mask, CC_MUST_REVALIDATE) || |
950 | EBIT_TEST(rep->cache_control->mask, CC_S_MAXAGE)) | |
62e76326 | 951 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 952 | } |
62e76326 | 953 | |
c3609322 | 954 | #if HEADERS_LOG |
585ab260 | 955 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 956 | |
c3609322 | 957 | #endif |
5f8252d2 | 958 | |
959 | ctx_exit(ctx); | |
f5558c95 | 960 | } |
961 | ||
528b2c61 | 962 | HttpStateData::ConnectionStatus |
963 | HttpStateData::statusIfComplete() const | |
603a02fd | 964 | { |
585ab260 | 965 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
966 | /** \par |
967 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 968 | |
2afaba07 | 969 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 970 | return COMPLETE_NONPERSISTENT_MSG; |
971 | ||
073ba374 AJ |
972 | /** \par |
973 | * If we didn't send a keep-alive request header, then this | |
978e455f | 974 | * can not be a persistent connection. |
975 | */ | |
528b2c61 | 976 | if (!flags.keepalive) |
62e76326 | 977 | return COMPLETE_NONPERSISTENT_MSG; |
978 | ||
073ba374 | 979 | /** \par |
72b63f06 | 980 | * If we haven't sent the whole request then this can not be a persistent |
981 | * connection. | |
982 | */ | |
983 | if (!flags.request_sent) { | |
60745f24 | 984 | debugs(11, 1, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(orig_request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 985 | return COMPLETE_NONPERSISTENT_MSG; |
986 | } | |
987 | ||
073ba374 | 988 | /** \par |
9f5a2895 | 989 | * What does the reply have to say about keep-alive? |
990 | */ | |
073ba374 AJ |
991 | /** |
992 | \bug XXX BUG? | |
b6a2f15e | 993 | * If the origin server (HTTP/1.0) does not send a keep-alive |
994 | * header, but keeps the connection open anyway, what happens? | |
995 | * We'll return here and http.c waits for an EOF before changing | |
996 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
997 | * and an error status code, and we might have to wait until | |
998 | * the server times out the socket. | |
999 | */ | |
2afaba07 | 1000 | if (!rep->keep_alive) |
528b2c61 | 1001 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 1002 | |
528b2c61 | 1003 | return COMPLETE_PERSISTENT_MSG; |
1004 | } | |
1005 | ||
1006 | HttpStateData::ConnectionStatus | |
1007 | HttpStateData::persistentConnStatus() const | |
1008 | { | |
ba82c452 | 1009 | debugs(11, 3, "persistentConnStatus: FD " << fd << " eof=" << eof); |
839291ac AJ |
1010 | if (eof) // already reached EOF |
1011 | return COMPLETE_NONPERSISTENT_MSG; | |
1012 | ||
505c2f28 AR |
1013 | /* If server fd is closing (but we have not been notified yet), stop Comm |
1014 | I/O to avoid assertions. TODO: Change Comm API to handle callers that | |
1015 | want more I/O after async closing (usually initiated by others). */ | |
1016 | // XXX: add canReceive or s/canSend/canTalkToServer/ | |
1017 | if (!canSend(fd)) | |
1018 | return COMPLETE_NONPERSISTENT_MSG; | |
1019 | ||
9035d1d5 AJ |
1020 | /** \par |
1021 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1022 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 1023 | * decide if we can be persistant |
af0bb8e5 | 1024 | */ |
839291ac | 1025 | if (lastChunk && flags.chunked) |
9e008dda | 1026 | return statusIfComplete(); |
af0bb8e5 | 1027 | |
718d84bf AR |
1028 | const HttpReply *vrep = virginReply(); |
1029 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
1030 | ||
47f6e231 | 1031 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1032 | |
bf8fe701 | 1033 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1034 | |
35282fbf | 1035 | /* If the body size is unknown we must wait for EOF */ |
1036 | if (clen < 0) | |
62e76326 | 1037 | return INCOMPLETE_MSG; |
1038 | ||
9035d1d5 AJ |
1039 | /** \par |
1040 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1041 | if (clen > 0) { |
1042 | // old technique: | |
585ab260 | 1043 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 1044 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 1045 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 1046 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 1047 | |
585ab260 | 1048 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 1049 | return INCOMPLETE_MSG; |
821beb5e AR |
1050 | |
1051 | if (body_bytes_truncated > 0) // already read more than needed | |
1052 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns | |
5f8252d2 | 1053 | } |
62e76326 | 1054 | |
9035d1d5 AJ |
1055 | /** \par |
1056 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1057 | return statusIfComplete(); |
603a02fd | 1058 | } |
090089c4 | 1059 | |
2afaba07 | 1060 | /* |
1061 | * This is the callback after some data has been read from the network | |
1062 | */ | |
dc56a9b1 | 1063 | /* |
e5ee81f0 | 1064 | void |
d53b3f6d | 1065 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) |
c4b7a5a9 | 1066 | { |
1067 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 1068 | assert (fd == httpState->fd); |
d53b3f6d | 1069 | // assert(buf == readBuf->content()); |
1d5161bd | 1070 | PROF_start(HttpStateData_readReply); |
e6edd8df | 1071 | httpState->readReply(len, flag, xerrno); |
1d5161bd | 1072 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 1073 | } |
dc56a9b1 | 1074 | */ |
073ba374 | 1075 | |
2afdbf48 | 1076 | /* XXX this function is too long! */ |
c4b7a5a9 | 1077 | void |
e6edd8df | 1078 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1079 | { |
30a4f2a8 | 1080 | int bin; |
090089c4 | 1081 | int clen; |
dc56a9b1 | 1082 | int len = io.size; |
c4b7a5a9 | 1083 | |
dc56a9b1 | 1084 | assert(fd == io.fd); |
1085 | ||
1086 | flags.do_next_read = 0; | |
9e008dda | 1087 | |
7a7cc03f | 1088 | debugs(11, 5, "httpReadReply: FD " << fd << ": len " << len << "."); |
62e76326 | 1089 | |
7a7cc03f | 1090 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1091 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1092 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1093 | return; |
1094 | } | |
1095 | ||
e92e4e44 | 1096 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
5f8252d2 | 1097 | maybeReadVirginBody(); |
62e76326 | 1098 | return; |
e92e4e44 | 1099 | } |
c4b7a5a9 | 1100 | |
fdf55365 | 1101 | // handle I/O errors |
dc56a9b1 | 1102 | if (io.flag != COMM_OK || len < 0) { |
7a7cc03f | 1103 | debugs(11, 2, "httpReadReply: FD " << fd << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1104 | |
dc56a9b1 | 1105 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1106 | flags.do_next_read = 1; |
1107 | } else { | |
1108 | ErrorState *err; | |
1109 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
dc56a9b1 | 1110 | err->xerrno = io.xerrno; |
fdf55365 | 1111 | fwd->fail(err); |
1112 | flags.do_next_read = 0; | |
1113 | comm_close(fd); | |
1114 | } | |
1115 | ||
1116 | return; | |
1117 | } | |
1118 | ||
7a7cc03f | 1119 | // update I/O stats |
fdf55365 | 1120 | if (len > 0) { |
2afaba07 | 1121 | readBuf->appended(len); |
5f8252d2 | 1122 | reply_bytes_read += len; |
9a0a18de | 1123 | #if USE_DELAY_POOLS |
2afaba07 | 1124 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); |
62e76326 | 1125 | delayId.bytesIn(len); |
447e176b | 1126 | #endif |
62e76326 | 1127 | |
1128 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1129 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1130 | IOStats.Http.reads++; |
1131 | ||
1132 | for (clen = len - 1, bin = 0; clen; bin++) | |
1133 | clen >>= 1; | |
1134 | ||
1135 | IOStats.Http.read_hist[bin]++; | |
3ff65596 AR |
1136 | |
1137 | // update peer response time stats (%<pt) | |
1138 | const timeval &sent = orig_request->hier.peer_http_request_sent; | |
1139 | orig_request->hier.peer_response_time = | |
1140 | sent.tv_sec ? tvSubMsec(sent, current_time) : -1; | |
30a4f2a8 | 1141 | } |
62e76326 | 1142 | |
073ba374 AJ |
1143 | /** \par |
1144 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1145 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1146 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1147 | * not allowing connection reuse in the first place. | |
1148 | */ | |
1149 | #if DONT_DO_THIS | |
fdf55365 | 1150 | if (!flags.headers_parsed && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1151 | /* Skip whitespace between replies */ |
62e76326 | 1152 | |
d53b3f6d | 1153 | while (len > 0 && xisspace(*buf)) |
41d00cd3 | 1154 | memmove(buf, buf + 1, len--); |
62e76326 | 1155 | |
1156 | if (len == 0) { | |
1157 | /* Continue to read... */ | |
21b92762 | 1158 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1159 | flags.do_next_read = 1; |
5f8252d2 | 1160 | maybeReadVirginBody(); |
62e76326 | 1161 | return; |
1162 | } | |
5ede6c8f | 1163 | } |
62e76326 | 1164 | |
5fa061b8 | 1165 | #endif |
1166 | ||
ba82c452 | 1167 | if (len == 0) { // reached EOF? |
62e76326 | 1168 | eof = 1; |
f61f0107 | 1169 | flags.do_next_read = 0; |
da6c8415 | 1170 | |
b73a07d6 | 1171 | /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n |
da6c8415 | 1172 | * Ensure here that we have at minimum two \r\n when EOF is seen. |
b73a07d6 | 1173 | * TODO: Add eof parameter to headersEnd() and move this hack there. |
da6c8415 | 1174 | */ |
b73a07d6 | 1175 | if (readBuf->contentSize() && !flags.headers_parsed) { |
da6c8415 AJ |
1176 | /* |
1177 | * Yes Henrik, there is a point to doing this. When we | |
1178 | * called httpProcessReplyHeader() before, we didn't find | |
1179 | * the end of headers, but now we are definately at EOF, so | |
1180 | * we want to process the reply headers. | |
1181 | */ | |
1182 | /* Fake an "end-of-headers" to work around such broken servers */ | |
1183 | readBuf->append("\r\n", 2); | |
da6c8415 | 1184 | } |
ba82c452 | 1185 | } |
62e76326 | 1186 | |
655daa06 AR |
1187 | processReply(); |
1188 | } | |
1189 | ||
1190 | /// processes the already read and buffered response data, possibly after | |
1191 | /// waiting for asynchronous 1xx control message processing | |
1192 | void | |
de48b288 A |
1193 | HttpStateData::processReply() |
1194 | { | |
655daa06 AR |
1195 | |
1196 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1197 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1198 | flags.handling1xx = false; | |
1199 | Must(!flags.headers_parsed); | |
1200 | } | |
1201 | ||
ba82c452 | 1202 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1203 | PROF_start(HttpStateData_processReplyHeader); | |
1204 | processReplyHeader(); | |
1205 | PROF_stop(HttpStateData_processReplyHeader); | |
1206 | ||
1207 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1208 | return; // TODO: send errors to ICAP | |
1209 | ||
585ab260 | 1210 | adaptOrFinalizeReply(); |
ba82c452 | 1211 | } |
1212 | ||
1213 | // kick more reads if needed and/or process the response body, if any | |
1214 | PROF_start(HttpStateData_processReplyBody); | |
1215 | processReplyBody(); // may call serverComplete() | |
1216 | PROF_stop(HttpStateData_processReplyBody); | |
1217 | } | |
1218 | ||
073ba374 AJ |
1219 | /** |
1220 | \retval true if we can continue with processing the body or doing ICAP. | |
1221 | */ | |
ba82c452 | 1222 | bool |
1223 | HttpStateData::continueAfterParsingHeader() | |
1224 | { | |
655daa06 AR |
1225 | if (flags.handling1xx) { |
1226 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1227 | Must(!flags.headers_parsed); | |
1228 | return false; | |
1229 | } | |
1230 | ||
073ba374 | 1231 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1232 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1233 | flags.do_next_read = 1; | |
073ba374 AJ |
1234 | /** \retval false If we have not finished parsing the headers and may get more data. |
1235 | * Schedules more reads to retrieve the missing data. | |
1236 | */ | |
ba82c452 | 1237 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1238 | return false; |
ba82c452 | 1239 | } |
1240 | ||
073ba374 | 1241 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1242 | |
1243 | err_type error = ERR_NONE; | |
1244 | ||
1245 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1246 | // check for header parsing errors | |
585ab260 | 1247 | if (HttpReply *vrep = virginReply()) { |
1248 | const http_status s = vrep->sline.status; | |
1249 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1250 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
9121eba6 | 1251 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); |
ba82c452 | 1252 | error = ERR_INVALID_RESP; |
e1381638 AJ |
1253 | } else if (s == HTTP_HEADER_TOO_LARGE) { |
1254 | fwd->dontRetry(true); | |
1255 | error = ERR_TOO_BIG; | |
1256 | } else { | |
1257 | return true; // done parsing, got reply, and no error | |
1258 | } | |
ba82c452 | 1259 | } else { |
1260 | // parsed headers but got no reply | |
9121eba6 | 1261 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); |
ba82c452 | 1262 | error = ERR_INVALID_RESP; |
62e76326 | 1263 | } |
090089c4 | 1264 | } else { |
ba82c452 | 1265 | assert(eof); |
9121eba6 AJ |
1266 | if (readBuf->hasContent()) { |
1267 | error = ERR_INVALID_RESP; | |
1268 | 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() ); | |
1269 | } else { | |
1270 | error = ERR_ZERO_SIZE_OBJECT; | |
94a1d715 AJ |
1271 | debugs(11, (orig_request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << |
1272 | entry->url() << " AKA " << orig_request->GetHost() << orig_request->urlpath.termedBuf() ); | |
9121eba6 | 1273 | } |
2afaba07 | 1274 | } |
ba82c452 | 1275 | |
1276 | assert(error != ERR_NONE); | |
1277 | entry->reset(); | |
1278 | fwd->fail(errorCon(error, HTTP_BAD_GATEWAY, fwd->request)); | |
1279 | flags.do_next_read = 0; | |
1280 | comm_close(fd); | |
1281 | return false; // quit on error | |
2afaba07 | 1282 | } |
1283 | ||
821beb5e AR |
1284 | /** truncate what we read if we read too much so that writeReplyBody() |
1285 | writes no more than what we should have read */ | |
1286 | void | |
1287 | HttpStateData::truncateVirginBody() | |
1288 | { | |
1289 | assert(flags.headers_parsed); | |
1290 | ||
1291 | HttpReply *vrep = virginReply(); | |
1292 | int64_t clen = -1; | |
1293 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1294 | return; // no body or a body of unknown size, including chunked | |
1295 | ||
1296 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; | |
e1381638 | 1297 | if (body_bytes_read - body_bytes_truncated <= clen) |
821beb5e AR |
1298 | return; // we did not read too much or already took care of the extras |
1299 | ||
1300 | if (const int64_t extras = body_bytes_read - body_bytes_truncated - clen) { | |
1301 | // server sent more that the advertised content length | |
e1381638 AJ |
1302 | debugs(11,5, HERE << "body_bytes_read=" << body_bytes_read << |
1303 | " clen=" << clen << '/' << vrep->content_length << | |
1304 | " body_bytes_truncated=" << body_bytes_truncated << '+' << extras); | |
821beb5e AR |
1305 | |
1306 | readBuf->truncate(extras); | |
1307 | body_bytes_truncated += extras; | |
1308 | } | |
1309 | } | |
1310 | ||
073ba374 | 1311 | /** |
2afaba07 | 1312 | * Call this when there is data from the origin server |
1313 | * which should be sent to either StoreEntry, or to ICAP... | |
1314 | */ | |
1315 | void | |
5f8252d2 | 1316 | HttpStateData::writeReplyBody() |
2afaba07 | 1317 | { |
821beb5e | 1318 | truncateVirginBody(); // if needed |
5f8252d2 | 1319 | const char *data = readBuf->content(); |
1320 | int len = readBuf->contentSize(); | |
bc81cb2b | 1321 | addVirginReplyBody(data, len); |
5f8252d2 | 1322 | readBuf->consume(len); |
af0bb8e5 | 1323 | } |
fc68f6b1 | 1324 | |
af0bb8e5 | 1325 | bool |
1326 | HttpStateData::decodeAndWriteReplyBody() | |
1327 | { | |
1328 | const char *data = NULL; | |
1329 | int len; | |
e053c141 | 1330 | bool wasThereAnException = false; |
af0bb8e5 | 1331 | assert(flags.chunked); |
1332 | assert(httpChunkDecoder); | |
1333 | SQUID_ENTER_THROWING_CODE(); | |
1334 | MemBuf decodedData; | |
1335 | decodedData.init(); | |
e053c141 | 1336 | const bool doneParsing = httpChunkDecoder->parse(readBuf,&decodedData); |
af0bb8e5 | 1337 | len = decodedData.contentSize(); |
1338 | data=decodedData.content(); | |
1339 | addVirginReplyBody(data, len); | |
e053c141 | 1340 | if (doneParsing) { |
839291ac AJ |
1341 | lastChunk = 1; |
1342 | flags.do_next_read = 0; | |
af0bb8e5 | 1343 | } |
e053c141 FC |
1344 | SQUID_EXIT_THROWING_CODE(wasThereAnException); |
1345 | return wasThereAnException; | |
e6ccf245 | 1346 | } |
1347 | ||
073ba374 | 1348 | /** |
2afaba07 | 1349 | * processReplyBody has two purposes: |
1350 | * 1 - take the reply body data, if any, and put it into either | |
1351 | * the StoreEntry, or give it over to ICAP. | |
1352 | * 2 - see if we made it to the end of the response (persistent | |
1353 | * connections and such) | |
1354 | */ | |
e6ccf245 | 1355 | void |
2afaba07 | 1356 | HttpStateData::processReplyBody() |
e6ccf245 | 1357 | { |
dc56a9b1 | 1358 | AsyncCall::Pointer call; |
b7ac5457 | 1359 | Ip::Address client_addr; |
d67acb4e | 1360 | bool ispinned = false; |
fc68f6b1 | 1361 | |
1a98175f | 1362 | if (!flags.headers_parsed) { |
f61f0107 | 1363 | flags.do_next_read = 1; |
5f8252d2 | 1364 | maybeReadVirginBody(); |
62e76326 | 1365 | return; |
528b2c61 | 1366 | } |
62e76326 | 1367 | |
a83c6ed6 | 1368 | #if USE_ADAPTATION |
c30ac6ea | 1369 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1370 | if (adaptationAccessCheckPending) |
2afaba07 | 1371 | return; |
fc68f6b1 | 1372 | |
2afaba07 | 1373 | #endif |
62e76326 | 1374 | |
2afaba07 | 1375 | /* |
1376 | * At this point the reply headers have been parsed and consumed. | |
1377 | * That means header content has been removed from readBuf and | |
1378 | * it contains only body data. | |
1379 | */ | |
9e008dda AJ |
1380 | if (flags.chunked) { |
1381 | if (!decodeAndWriteReplyBody()) { | |
1382 | flags.do_next_read = 0; | |
1383 | serverComplete(); | |
1384 | return; | |
1385 | } | |
1386 | } else | |
1387 | writeReplyBody(); | |
528b2c61 | 1388 | |
e6ccf245 | 1389 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1390 | /* |
073ba374 | 1391 | * The above writeReplyBody() call could ABORT this entry, |
62e76326 | 1392 | * in that case, the server FD should already be closed. |
1393 | * there's nothing for us to do. | |
1394 | */ | |
1395 | (void) 0; | |
1396 | } else | |
1397 | switch (persistentConnStatus()) { | |
62e76326 | 1398 | case INCOMPLETE_MSG: |
bf8fe701 | 1399 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG"); |
21b92762 | 1400 | /* Wait for more data or EOF condition */ |
21b92762 | 1401 | if (flags.keepalive_broken) { |
9e008dda | 1402 | call = NULL; |
dc56a9b1 | 1403 | commSetTimeout(fd, 10, call); |
21b92762 | 1404 | } else { |
9e008dda | 1405 | call = NULL; |
dc56a9b1 | 1406 | commSetTimeout(fd, Config.Timeout.read, call); |
21b92762 | 1407 | } |
1408 | ||
f61f0107 | 1409 | flags.do_next_read = 1; |
62e76326 | 1410 | break; |
1411 | ||
1412 | case COMPLETE_PERSISTENT_MSG: | |
bf8fe701 | 1413 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG"); |
62e76326 | 1414 | /* yes we have to clear all these! */ |
9e008dda | 1415 | call = NULL; |
dc56a9b1 | 1416 | commSetTimeout(fd, -1, call); |
f61f0107 | 1417 | flags.do_next_read = 0; |
62e76326 | 1418 | |
9e008dda | 1419 | comm_remove_close_handler(fd, closeHandler); |
dc56a9b1 | 1420 | closeHandler = NULL; |
b6b6f466 | 1421 | fwd->unregister(fd); |
fc68f6b1 | 1422 | |
f165d2fb | 1423 | if (orig_request->flags.spoof_client_ip) |
cc192b50 | 1424 | client_addr = orig_request->client_addr; |
fc68f6b1 | 1425 | |
d67acb4e | 1426 | |
9e008dda AJ |
1427 | if (request->flags.pinned) { |
1428 | ispinned = true; | |
1429 | } else if (request->flags.connection_auth && request->flags.auth_sent) { | |
1430 | ispinned = true; | |
1431 | } | |
1432 | ||
1433 | if (orig_request->pinnedConnection() && ispinned) { | |
1434 | orig_request->pinnedConnection()->pinConnection(fd, orig_request, _peer, | |
1435 | (request->flags.connection_auth != 0)); | |
bd0723ad | 1436 | } else { |
06093389 | 1437 | fwd->pconnPush(fd, _peer, request, orig_request->GetHost(), client_addr); |
bd0723ad | 1438 | } |
1439 | ||
62e76326 | 1440 | fd = -1; |
2afaba07 | 1441 | |
5f8252d2 | 1442 | serverComplete(); |
62e76326 | 1443 | return; |
1444 | ||
1445 | case COMPLETE_NONPERSISTENT_MSG: | |
bf8fe701 | 1446 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG"); |
5f8252d2 | 1447 | serverComplete(); |
62e76326 | 1448 | return; |
1449 | } | |
1450 | ||
5f8252d2 | 1451 | maybeReadVirginBody(); |
c4b7a5a9 | 1452 | } |
1453 | ||
1454 | void | |
5f8252d2 | 1455 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1456 | { |
52edecde | 1457 | // we may need to grow the buffer if headers do not fit |
1c9605c5 | 1458 | const int minRead = flags.headers_parsed ? 0 :1024; |
d5f8d05f | 1459 | const int read_size = replyBodySpace(*readBuf, minRead); |
2afaba07 | 1460 | |
5f8252d2 | 1461 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
d5f8d05f | 1462 | " read up to " << read_size << " bytes from FD " << fd); |
2afaba07 | 1463 | |
1464 | /* | |
1465 | * why <2? Because delayAwareRead() won't actually read if | |
1466 | * you ask it to read 1 byte. The delayed read request | |
1467 | * just gets re-queued until the client side drains, then | |
1468 | * the I/O thread hangs. Better to not register any read | |
1469 | * handler until we get a notification from someone that | |
1470 | * its okay to read again. | |
1471 | */ | |
d5f8d05f | 1472 | if (read_size < 2) |
52edecde | 1473 | return; |
2afaba07 | 1474 | |
f61f0107 | 1475 | if (flags.do_next_read) { |
dc56a9b1 | 1476 | flags.do_next_read = 0; |
1477 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
d5f8d05f | 1478 | entry->delayAwareRead(fd, readBuf->space(read_size), read_size, |
4cb2536f | 1479 | JobCallback(11, 5, Dialer, this, HttpStateData::readReply)); |
528b2c61 | 1480 | } |
090089c4 | 1481 | } |
1482 | ||
39cb8c41 | 1483 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1484 | void |
39cb8c41 | 1485 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1486 | { |
39cb8c41 | 1487 | debugs(11, 5, HERE << "FD " << fd << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1488 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1489 | |
528b2c61 | 1490 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1491 | #endif |
62e76326 | 1492 | |
dc56a9b1 | 1493 | if (io.size > 0) { |
1494 | fd_bytes(fd, io.size, FD_WRITE); | |
1495 | kb_incr(&statCounter.server.all.kbytes_out, io.size); | |
1496 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
ee1679df | 1497 | } |
62e76326 | 1498 | |
dc56a9b1 | 1499 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1500 | return; |
1501 | ||
dc56a9b1 | 1502 | if (io.flag) { |
6cae5db1 | 1503 | ErrorState *err; |
dc56a9b1 | 1504 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
1505 | err->xerrno = io.xerrno; | |
1506 | fwd->fail(err); | |
62e76326 | 1507 | comm_close(fd); |
1508 | return; | |
090089c4 | 1509 | } |
72b63f06 | 1510 | |
39cb8c41 AR |
1511 | sendComplete(); |
1512 | } | |
1513 | ||
1514 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1515 | void | |
1516 | HttpStateData::sendComplete() | |
1517 | { | |
2afaba07 | 1518 | /* |
1519 | * Set the read timeout here because it hasn't been set yet. | |
1520 | * We only set the read timeout after the request has been | |
1521 | * fully written to the server-side. If we start the timeout | |
1522 | * after connection establishment, then we are likely to hit | |
1523 | * the timeout for POST/PUT requests that have very large | |
1524 | * request bodies. | |
1525 | */ | |
dc56a9b1 | 1526 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1527 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1528 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1529 | |
dc56a9b1 | 1530 | commSetTimeout(fd, Config.Timeout.read, timeoutCall); |
1531 | ||
1532 | flags.request_sent = 1; | |
e1381638 | 1533 | |
3ff65596 | 1534 | orig_request->hier.peer_http_request_sent = current_time; |
090089c4 | 1535 | } |
1536 | ||
5f8252d2 | 1537 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1538 | void |
5f8252d2 | 1539 | HttpStateData::closeServer() |
2afaba07 | 1540 | { |
5f8252d2 | 1541 | debugs(11,5, HERE << "closing HTTP server FD " << fd << " this " << this); |
fc68f6b1 | 1542 | |
2afaba07 | 1543 | if (fd >= 0) { |
b6b6f466 | 1544 | fwd->unregister(fd); |
9e008dda | 1545 | comm_remove_close_handler(fd, closeHandler); |
dc56a9b1 | 1546 | closeHandler = NULL; |
2afaba07 | 1547 | comm_close(fd); |
1548 | fd = -1; | |
1549 | } | |
5f8252d2 | 1550 | } |
2afaba07 | 1551 | |
5f8252d2 | 1552 | bool |
1553 | HttpStateData::doneWithServer() const | |
1554 | { | |
1555 | return fd < 0; | |
2afaba07 | 1556 | } |
1557 | ||
ee0b94f4 HN |
1558 | |
1559 | /* | |
1560 | * Fixup authentication request headers for special cases | |
1561 | */ | |
1562 | static void | |
1563 | httpFixupAuthentication(HttpRequest * request, HttpRequest * orig_request, const HttpHeader * hdr_in, HttpHeader * hdr_out, http_state_flags flags) | |
1564 | { | |
1565 | http_hdr_type header = flags.originpeer ? HDR_AUTHORIZATION : HDR_PROXY_AUTHORIZATION; | |
1566 | ||
1567 | /* Nothing to do unless we are forwarding to a peer */ | |
1568 | if (!request->flags.proxying) | |
f54f527e | 1569 | return; |
ee0b94f4 HN |
1570 | |
1571 | /* Needs to be explicitly enabled */ | |
dcde39a7 | 1572 | if (!orig_request->peer_login) |
f54f527e | 1573 | return; |
ee0b94f4 HN |
1574 | |
1575 | /* Maybe already dealt with? */ | |
1576 | if (hdr_out->has(header)) | |
f54f527e | 1577 | return; |
ee0b94f4 HN |
1578 | |
1579 | /* Nothing to do here for PASSTHRU */ | |
1580 | if (strcmp(orig_request->peer_login, "PASSTHRU") == 0) | |
f54f527e | 1581 | return; |
ee0b94f4 HN |
1582 | |
1583 | /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */ | |
1584 | if (flags.originpeer && strcmp(orig_request->peer_login, "PROXYPASS") == 0 && hdr_in->has(HDR_PROXY_AUTHORIZATION)) { | |
f54f527e | 1585 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
ee0b94f4 | 1586 | |
f54f527e AJ |
1587 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1588 | hdr_out->putStr(header, auth); | |
1589 | return; | |
1590 | } | |
ee0b94f4 HN |
1591 | } |
1592 | ||
1593 | /* Special mode to pass the username to the upstream cache */ | |
1594 | if (*orig_request->peer_login == '*') { | |
f54f527e AJ |
1595 | char loginbuf[256]; |
1596 | const char *username = "-"; | |
ee0b94f4 | 1597 | |
f54f527e AJ |
1598 | if (orig_request->extacl_user.size()) |
1599 | username = orig_request->extacl_user.termedBuf(); | |
2f1431ea | 1600 | #if USE_AUTH |
a33a428a | 1601 | else if (orig_request->auth_user_request != NULL) |
f54f527e | 1602 | username = orig_request->auth_user_request->username(); |
2f1431ea | 1603 | #endif |
ee0b94f4 | 1604 | |
f54f527e | 1605 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); |
ee0b94f4 | 1606 | |
f54f527e AJ |
1607 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
1608 | base64_encode(loginbuf)); | |
1609 | return; | |
ee0b94f4 HN |
1610 | } |
1611 | ||
1612 | /* external_acl provided credentials */ | |
1613 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size() && | |
f54f527e AJ |
1614 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1615 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
1616 | char loginbuf[256]; | |
1617 | snprintf(loginbuf, sizeof(loginbuf), SQUIDSTRINGPH ":" SQUIDSTRINGPH, | |
1618 | SQUIDSTRINGPRINT(orig_request->extacl_user), | |
1619 | SQUIDSTRINGPRINT(orig_request->extacl_passwd)); | |
1620 | httpHeaderPutStrf(hdr_out, header, "Basic %s", | |
1621 | base64_encode(loginbuf)); | |
1622 | return; | |
ee0b94f4 HN |
1623 | } |
1624 | ||
9ca29d23 | 1625 | /* Kerberos login to peer */ |
2f1431ea | 1626 | #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI |
9ca29d23 AJ |
1627 | if (strncmp(orig_request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { |
1628 | char *Token=NULL; | |
1629 | char *PrincipalName=NULL,*p; | |
1630 | if ((p=strchr(orig_request->peer_login,':')) != NULL ) { | |
1631 | PrincipalName=++p; | |
1632 | } | |
1633 | Token = peer_proxy_negotiate_auth(PrincipalName,request->peer_host); | |
1634 | if (Token) { | |
1635 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Negotiate %s",Token); | |
1636 | } | |
1637 | return; | |
1638 | } | |
1639 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1640 | ||
0606266f | 1641 | httpHeaderPutStrf(hdr_out, header, "Basic %s", |
f54f527e | 1642 | base64_encode(orig_request->peer_login)); |
ee0b94f4 HN |
1643 | return; |
1644 | } | |
1645 | ||
99edd1c3 | 1646 | /* |
9e008dda | 1647 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1648 | * used by buildRequestPrefix() |
818c6c9e | 1649 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1650 | */ |
e1e72f06 | 1651 | void |
e5ee81f0 | 1652 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1653 | HttpRequest * orig_request, | |
1654 | StoreEntry * entry, | |
1655 | HttpHeader * hdr_out, | |
386c7842 | 1656 | const http_state_flags flags) |
6bf8443a | 1657 | { |
99edd1c3 | 1658 | /* building buffer for complex strings */ |
5999b776 | 1659 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1660 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1661 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
99edd1c3 | 1662 | const HttpHeader *hdr_in = &orig_request->header; |
67c06f0d | 1663 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1664 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1665 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1666 | |
262a0e14 | 1667 | /* append our IMS header */ |
fa3e249f | 1668 | if (request->lastmod > -1) |
a9925b40 | 1669 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1670 | |
528b2c61 | 1671 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1672 | ||
30abd221 | 1673 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1674 | |
a9925b40 | 1675 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1676 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1677 | |
43ae1d95 | 1678 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1679 | * into offset-length data, and this works around our inability to do so. |
1680 | */ | |
62e76326 | 1681 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1682 | /* don't cache the result */ | |
1683 | orig_request->flags.cachable = 0; | |
1684 | /* pretend it's not a range request */ | |
00d77d6b | 1685 | delete orig_request->range; |
62e76326 | 1686 | orig_request->range = NULL; |
1687 | orig_request->flags.range = 0; | |
1688 | } | |
528b2c61 | 1689 | |
99edd1c3 | 1690 | /* append Via */ |
736cb6aa | 1691 | if (Config.onoff.via) { |
30abd221 | 1692 | String strVia; |
a9925b40 | 1693 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1694 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1695 | orig_request->http_ver.major, | |
1696 | orig_request->http_ver.minor, ThisCache); | |
1697 | strListAdd(&strVia, bbuf, ','); | |
d53b3f6d | 1698 | hdr_out->putStr(HDR_VIA, strVia.termedBuf()); |
30abd221 | 1699 | strVia.clean(); |
736cb6aa | 1700 | } |
62e76326 | 1701 | |
432bc83c | 1702 | if (orig_request->flags.accelerated) { |
43ae1d95 | 1703 | /* Append Surrogate-Capabilities */ |
45cca89d AJ |
1704 | String strSurrogate(hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
1705 | #if USE_SQUID_ESI | |
1706 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1707 | #else | |
1708 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1709 | #endif | |
43ae1d95 | 1710 | strListAdd(&strSurrogate, bbuf, ','); |
d53b3f6d | 1711 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1712 | } |
43ae1d95 | 1713 | |
67c06f0d | 1714 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1715 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 AR |
1716 | |
1717 | String strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1718 | ||
1719 | if (strFwd.size() > 65536/2) { | |
1720 | // There is probably a forwarding loop with Via detection disabled. | |
1721 | // If we do nothing, String will assert on overflow soon. | |
1722 | // TODO: Terminate all transactions with huge XFF? | |
1723 | strFwd = "error"; | |
1724 | ||
1725 | static int warnedCount = 0; | |
1726 | if (warnedCount++ < 100) { | |
1727 | const char *url = entry ? entry->url() : urlCanonical(orig_request); | |
1728 | debugs(11, 1, "Warning: likely forwarding loop with " << url); | |
1729 | } | |
1730 | } | |
1731 | ||
9e008dda | 1732 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1733 | /** If set to ON - append client IP or 'unknown'. */ |
9e008dda | 1734 | if ( orig_request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1735 | strListAdd(&strFwd, "unknown", ','); |
1736 | else | |
1737 | strListAdd(&strFwd, orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); | |
9e008dda | 1738 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1739 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1740 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1741 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1742 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1743 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1744 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
9e008dda | 1745 | if ( orig_request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1746 | strFwd = "unknown"; |
1747 | else | |
1748 | strFwd = orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); | |
1749 | } | |
9e008dda | 1750 | if (strFwd.size() > 0) |
d53b3f6d | 1751 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1752 | } |
67c06f0d | 1753 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1754 | |
99edd1c3 | 1755 | /* append Host if not there already */ |
a9925b40 | 1756 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1757 | if (orig_request->peer_domain) { |
a9925b40 | 1758 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1759 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1760 | /* use port# only if not default */ | |
cc192b50 | 1761 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
62e76326 | 1762 | } else { |
1763 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1764 | orig_request->GetHost(), |
1765 | (int) orig_request->port); | |
62e76326 | 1766 | } |
6bf8443a | 1767 | } |
62e76326 | 1768 | |
c68e9c6b | 1769 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1770 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1771 | if (!request->flags.proxying && *request->login) { |
1772 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1773 | base64_encode(request->login)); | |
1774 | } | |
c68e9c6b | 1775 | } |
62e76326 | 1776 | |
ee0b94f4 HN |
1777 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
1778 | httpFixupAuthentication(request, orig_request, hdr_in, hdr_out, flags); | |
62e76326 | 1779 | |
ee0b94f4 HN |
1780 | /* append Cache-Control, add max-age if not there already */ |
1781 | { | |
a9925b40 | 1782 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1783 | |
1784 | if (!cc) | |
1785 | cc = httpHdrCcCreate(); | |
1786 | ||
7dc5c309 AJ |
1787 | #if 0 /* see bug 2330 */ |
1788 | /* Set no-cache if determined needed but not found */ | |
1789 | if (orig_request->flags.nocache) | |
1790 | EBIT_SET(cc->mask, CC_NO_CACHE); | |
1791 | #endif | |
1792 | ||
af6a12ee AJ |
1793 | /* Add max-age only without no-cache */ |
1794 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE) && !EBIT_TEST(cc->mask, CC_NO_CACHE)) { | |
43ae1d95 | 1795 | const char *url = |
3900307b | 1796 | entry ? entry->url() : urlCanonical(orig_request); |
62e76326 | 1797 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1798 | ||
1799 | if (request->urlpath.size()) | |
e8466ea9 | 1800 | assert(strstr(url, request->urlpath.termedBuf())); |
62e76326 | 1801 | } |
1802 | ||
ce2d6441 | 1803 | /* Enforce sibling relations */ |
62e76326 | 1804 | if (flags.only_if_cached) |
1805 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1806 | ||
a9925b40 | 1807 | hdr_out->putCc(cc); |
62e76326 | 1808 | |
1809 | httpHdrCcDestroy(cc); | |
6bf8443a | 1810 | } |
62e76326 | 1811 | |
99edd1c3 | 1812 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1813 | if (flags.keepalive) { |
95e78500 | 1814 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
603a02fd | 1815 | } |
62e76326 | 1816 | |
a7ad6e4e | 1817 | /* append Front-End-Https */ |
1818 | if (flags.front_end_https) { | |
0c3d3f65 | 1819 | if (flags.front_end_https == 1 || request->protocol == AnyP::PROTO_HTTPS) |
a9925b40 | 1820 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1821 | } |
1822 | ||
e31a1e67 AR |
1823 | if (flags.chunked_request) { |
1824 | // Do not just copy the original value so that if the client-side | |
1825 | // starts decode other encodings, this code may remain valid. | |
39cb8c41 AR |
1826 | hdr_out->putStr(HDR_TRANSFER_ENCODING, "chunked"); |
1827 | } | |
1828 | ||
6bccf575 | 1829 | /* Now mangle the headers. */ |
4f56514c | 1830 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1831 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1832 | |
30abd221 | 1833 | strConnection.clean(); |
99edd1c3 | 1834 | } |
1835 | ||
9e498bfb AJ |
1836 | /** |
1837 | * Decides whether a particular header may be cloned from the received Clients request | |
1838 | * to our outgoing fetch request. | |
1839 | */ | |
528b2c61 | 1840 | void |
9e498bfb | 1841 | 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 | 1842 | { |
e8466ea9 | 1843 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 1844 | |
528b2c61 | 1845 | switch (e->id) { |
62e76326 | 1846 | |
af6a12ee | 1847 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 1848 | |
be753325 | 1849 | case HDR_PROXY_AUTHORIZATION: |
9e498bfb AJ |
1850 | /** \par Proxy-Authorization: |
1851 | * Only pass on proxy authentication to peers for which | |
62e76326 | 1852 | * authentication forwarding is explicitly enabled |
1853 | */ | |
ee0b94f4 | 1854 | if (!flags.originpeer && flags.proxying && orig_request->peer_login && |
f54f527e AJ |
1855 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1856 | strcmp(orig_request->peer_login, "PROXYPASS") == 0 || | |
1857 | strcmp(orig_request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 1858 | hdr_out->addEntry(e->clone()); |
62e76326 | 1859 | } |
62e76326 | 1860 | break; |
1861 | ||
af6a12ee | 1862 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb AJ |
1863 | |
1864 | case HDR_CONNECTION: /** \par Connection: */ | |
1865 | case HDR_TE: /** \par TE: */ | |
1866 | case HDR_KEEP_ALIVE: /** \par Keep-Alive: */ | |
1867 | case HDR_PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
a1651bad | 1868 | case HDR_TRAILER: /** \par Trailer: */ |
9e498bfb AJ |
1869 | case HDR_UPGRADE: /** \par Upgrade: */ |
1870 | case HDR_TRANSFER_ENCODING: /** \par Transfer-Encoding: */ | |
1871 | break; | |
1872 | ||
1873 | ||
af6a12ee | 1874 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 1875 | |
be753325 | 1876 | case HDR_AUTHORIZATION: |
9e498bfb AJ |
1877 | /** \par WWW-Authorization: |
1878 | * Pass on WWW authentication */ | |
62e76326 | 1879 | |
1880 | if (!flags.originpeer) { | |
eede25e7 | 1881 | hdr_out->addEntry(e->clone()); |
62e76326 | 1882 | } else { |
9e498bfb | 1883 | /** \note In accelerators, only forward authentication if enabled |
ee0b94f4 | 1884 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 1885 | */ |
abb929f0 | 1886 | if (orig_request->peer_login && |
1887 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
11e4c5e5 | 1888 | strcmp(orig_request->peer_login, "PASSTHRU") == 0 || |
abb929f0 | 1889 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { |
eede25e7 | 1890 | hdr_out->addEntry(e->clone()); |
62e76326 | 1891 | } |
1892 | } | |
1893 | ||
1894 | break; | |
1895 | ||
be753325 | 1896 | case HDR_HOST: |
9e498bfb | 1897 | /** \par Host: |
b883b594 | 1898 | * Normally Squid rewrites the Host: header. |
1899 | * However, there is one case when we don't: If the URL | |
62e76326 | 1900 | * went through our redirector and the admin configured |
1901 | * 'redir_rewrites_host' to be off. | |
1902 | */ | |
9e008dda | 1903 | if (orig_request->peer_domain) |
488b27c5 HN |
1904 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
1905 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) | |
eede25e7 | 1906 | hdr_out->addEntry(e->clone()); |
b883b594 | 1907 | else { |
1908 | /* use port# only if not default */ | |
1909 | ||
1910 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
cc192b50 | 1911 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
b883b594 | 1912 | } else { |
1913 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1914 | orig_request->GetHost(), |
1915 | (int) orig_request->port); | |
b883b594 | 1916 | } |
1917 | } | |
62e76326 | 1918 | |
1919 | break; | |
1920 | ||
be753325 | 1921 | case HDR_IF_MODIFIED_SINCE: |
9e498bfb | 1922 | /** \par If-Modified-Since: |
af6a12ee | 1923 | * append unless we added our own; |
9e498bfb | 1924 | * \note at most one client's ims header can pass through */ |
b883b594 | 1925 | |
a9925b40 | 1926 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1927 | hdr_out->addEntry(e->clone()); |
62e76326 | 1928 | |
1929 | break; | |
1930 | ||
be753325 | 1931 | case HDR_MAX_FORWARDS: |
9e498bfb | 1932 | /** \par Max-Forwards: |
fc90edc3 AJ |
1933 | * pass only on TRACE or OPTIONS requests */ |
1934 | if (orig_request->method == METHOD_TRACE || orig_request->method == METHOD_OPTIONS) { | |
1935 | const int64_t hops = e->getInt64(); | |
62e76326 | 1936 | |
1937 | if (hops > 0) | |
fc90edc3 | 1938 | hdr_out->putInt64(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1939 | } |
1940 | ||
1941 | break; | |
1942 | ||
be753325 | 1943 | case HDR_VIA: |
9e498bfb AJ |
1944 | /** \par Via: |
1945 | * If Via is disabled then forward any received header as-is. | |
1946 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 1947 | |
1948 | if (!Config.onoff.via) | |
eede25e7 | 1949 | hdr_out->addEntry(e->clone()); |
62e76326 | 1950 | |
1951 | break; | |
1952 | ||
be753325 | 1953 | case HDR_RANGE: |
62e76326 | 1954 | |
be753325 | 1955 | case HDR_IF_RANGE: |
62e76326 | 1956 | |
be753325 | 1957 | case HDR_REQUEST_RANGE: |
9e498bfb AJ |
1958 | /** \par Range:, If-Range:, Request-Range: |
1959 | * Only pass if we accept ranges */ | |
62e76326 | 1960 | if (!we_do_ranges) |
eede25e7 | 1961 | hdr_out->addEntry(e->clone()); |
62e76326 | 1962 | |
1963 | break; | |
1964 | ||
95e78500 AJ |
1965 | case HDR_PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
1966 | break; | |
62e76326 | 1967 | |
be753325 | 1968 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1969 | |
be753325 | 1970 | case HDR_CACHE_CONTROL: |
95e78500 | 1971 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
1972 | * handled specially by Squid, so leave off for now. |
1973 | * append these after the loop if needed */ | |
62e76326 | 1974 | break; |
1975 | ||
be753325 | 1976 | case HDR_FRONT_END_HTTPS: |
9e498bfb AJ |
1977 | /** \par Front-End-Https: |
1978 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 1979 | if (!flags.front_end_https) |
eede25e7 | 1980 | hdr_out->addEntry(e->clone()); |
62e76326 | 1981 | |
1982 | break; | |
1983 | ||
be753325 | 1984 | default: |
9e498bfb AJ |
1985 | /** \par default. |
1986 | * pass on all other header fields | |
1987 | * which are NOT listed by the special Connection: header. */ | |
1988 | ||
a7a42b14 | 1989 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name.termedBuf(), ',')) { |
e1ea7456 | 1990 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
1991 | return; |
1992 | } | |
1993 | ||
eede25e7 | 1994 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1995 | } |
1996 | } | |
1997 | ||
e5ee81f0 | 1998 | bool |
1999 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 2000 | { |
e5ee81f0 | 2001 | bool result = true; |
62e76326 | 2002 | /* decide if we want to do Ranges ourselves |
2003 | * and fetch the whole object now) | |
2004 | * We want to handle Ranges ourselves iff | |
2005 | * - we can actually parse client Range specs | |
2006 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
2007 | * - reply will be cachable | |
2008 | * (If the reply will be uncachable we have to throw it away after | |
2009 | * serving this request, so it is better to forward ranges to | |
2010 | * the server and fetch only the requested content) | |
2011 | */ | |
2012 | ||
11e3fa1c AJ |
2013 | int64_t roffLimit = orig_request->getRangeOffsetLimit(); |
2014 | ||
62e76326 | 2015 | if (NULL == orig_request->range || !orig_request->flags.cachable |
11e3fa1c | 2016 | || orig_request->range->offsetLimitExceeded(roffLimit) || orig_request->flags.connection_auth) |
e5ee81f0 | 2017 | result = false; |
62e76326 | 2018 | |
9e008dda AJ |
2019 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
2020 | orig_request->range << ", cachable: " << | |
2021 | orig_request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 2022 | |
2023 | return result; | |
528b2c61 | 2024 | } |
2025 | ||
62e76326 | 2026 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 2027 | * return the length of the prefix */ |
9bc73deb | 2028 | mb_size_t |
e053c141 FC |
2029 | HttpStateData::buildRequestPrefix(HttpRequest * aRequest, |
2030 | HttpRequest * original_request, | |
2031 | StoreEntry * sentry, | |
386c7842 | 2032 | MemBuf * mb) |
99edd1c3 | 2033 | { |
2034 | const int offset = mb->size; | |
3872be7c | 2035 | HttpVersion httpver(1,1); |
2fe7eff9 | 2036 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
e053c141 FC |
2037 | RequestMethodStr(aRequest->method), |
2038 | aRequest->urlpath.size() ? aRequest->urlpath.termedBuf() : "/", | |
2fe7eff9 | 2039 | httpver.major,httpver.minor); |
99edd1c3 | 2040 | /* build and pack headers */ |
2041 | { | |
75faaa7a | 2042 | HttpHeader hdr(hoRequest); |
62e76326 | 2043 | Packer p; |
386c7842 | 2044 | httpBuildRequestHeader(aRequest, original_request, sentry, &hdr, flags); |
9e008dda | 2045 | |
e053c141 FC |
2046 | if (aRequest->flags.pinned && aRequest->flags.connection_auth) |
2047 | aRequest->flags.auth_sent = 1; | |
d67acb4e | 2048 | else if (hdr.has(HDR_AUTHORIZATION)) |
e053c141 | 2049 | aRequest->flags.auth_sent = 1; |
d67acb4e | 2050 | |
62e76326 | 2051 | packerToMemInit(&p, mb); |
a9925b40 | 2052 | hdr.packInto(&p); |
519e0948 | 2053 | hdr.clean(); |
62e76326 | 2054 | packerClean(&p); |
9d9d144b | 2055 | } |
99edd1c3 | 2056 | /* append header terminator */ |
2fe7eff9 | 2057 | mb->append(crlf, 2); |
99edd1c3 | 2058 | return mb->size - offset; |
6bf8443a | 2059 | } |
62e76326 | 2060 | |
090089c4 | 2061 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2062 | bool |
2bb867b5 | 2063 | HttpStateData::sendRequest() |
090089c4 | 2064 | { |
99edd1c3 | 2065 | MemBuf mb; |
090089c4 | 2066 | |
bf8fe701 | 2067 | debugs(11, 5, "httpSendRequest: FD " << fd << ", request " << request << ", this " << this << "."); |
a0297974 AR |
2068 | |
2069 | if (!canSend(fd)) { | |
2070 | debugs(11,3, HERE << "cannot send request to closing FD " << fd); | |
2071 | assert(closeHandler != NULL); | |
2072 | return false; | |
2073 | } | |
2074 | ||
dc56a9b1 | 2075 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2076 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2077 | TimeoutDialer, this, HttpStateData::httpTimeout); |
dc56a9b1 | 2078 | commSetTimeout(fd, Config.Timeout.lifetime, timeoutCall); |
2bb867b5 | 2079 | flags.do_next_read = 1; |
5f8252d2 | 2080 | maybeReadVirginBody(); |
2081 | ||
2082 | if (orig_request->body_pipe != NULL) { | |
123ec4de | 2083 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2084 | return false; |
9e008dda | 2085 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2086 | requestSender = JobCallback(11,5, |
4cb2536f | 2087 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2088 | |
2089 | Must(!flags.chunked_request); | |
2090 | // Preserve original chunked encoding unless we learned the length. | |
2091 | if (orig_request->header.chunked() && orig_request->content_length < 0) | |
2092 | flags.chunked_request = 1; | |
5f8252d2 | 2093 | } else { |
2094 | assert(!requestBodySource); | |
9e008dda | 2095 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2096 | requestSender = JobCallback(11,5, |
39cb8c41 | 2097 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2098 | } |
54220df8 | 2099 | |
2bb867b5 | 2100 | if (_peer != NULL) { |
2101 | if (_peer->options.originserver) { | |
2102 | flags.proxying = 0; | |
2103 | flags.originpeer = 1; | |
62e76326 | 2104 | } else { |
2bb867b5 | 2105 | flags.proxying = 1; |
2106 | flags.originpeer = 0; | |
62e76326 | 2107 | } |
be753325 | 2108 | } else { |
2bb867b5 | 2109 | flags.proxying = 0; |
2110 | flags.originpeer = 0; | |
be753325 | 2111 | } |
62e76326 | 2112 | |
efb9218c | 2113 | /* |
99edd1c3 | 2114 | * Is keep-alive okay for all request methods? |
efb9218c | 2115 | */ |
d67acb4e | 2116 | if (orig_request->flags.must_keepalive) |
9e008dda | 2117 | flags.keepalive = 1; |
d67acb4e | 2118 | else if (!Config.onoff.server_pconns) |
2bb867b5 | 2119 | flags.keepalive = 0; |
2120 | else if (_peer == NULL) | |
2121 | flags.keepalive = 1; | |
2122 | else if (_peer->stats.n_keepalives_sent < 10) | |
2123 | flags.keepalive = 1; | |
2124 | else if ((double) _peer->stats.n_keepalives_recv / | |
2125 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
2126 | flags.keepalive = 1; | |
2127 | ||
2128 | if (_peer) { | |
2129 | if (neighborType(_peer, request) == PEER_SIBLING && | |
2130 | !_peer->options.allow_miss) | |
2131 | flags.only_if_cached = 1; | |
2132 | ||
2133 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2134 | } |
62e76326 | 2135 | |
2fe7eff9 | 2136 | mb.init(); |
9ca29d23 | 2137 | request->peer_host=_peer?_peer->host:NULL; |
386c7842 | 2138 | buildRequestPrefix(request, orig_request, entry, &mb); |
bf8fe701 | 2139 | debugs(11, 6, "httpSendRequest: FD " << fd << ":\n" << mb.buf); |
ec41b64c | 2140 | Comm::Write(fd, &mb, requestSender); |
5f8252d2 | 2141 | |
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 | |
39cb8c41 AR |
2217 | if (!canSend(fd)) { |
2218 | debugs(11,2, HERE << "ignoring broken POST for closing FD " << fd); | |
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); | |
ec41b64c | 2227 | Comm::Write(fd, "\r\n", 2, requestSender, NULL); |
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; | |
2247 | requestSender = JobCallback(11,5, | |
2248 | Dialer, this, HttpStateData::wroteLast); | |
ec41b64c | 2249 | Comm::Write(fd, "0\r\n\r\n", 5, requestSender, NULL); |
39cb8c41 AR |
2250 | return true; |
2251 | } | |
2252 | ||
2253 | void | |
2254 | HttpStateData::doneSendingRequestBody() | |
2255 | { | |
2256 | ServerStateData::doneSendingRequestBody(); | |
2257 | debugs(11,5, HERE << "doneSendingRequestBody: FD " << fd); | |
2258 | ||
2259 | // do we need to write something after the last body byte? | |
e31a1e67 | 2260 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2261 | return; |
e31a1e67 | 2262 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2263 | return; |
aa49962c | 2264 | |
39cb8c41 | 2265 | sendComplete(); |
94439e4e | 2266 | } |
2267 | ||
5f8252d2 | 2268 | // more origin request body data is available |
2bb867b5 | 2269 | void |
5f8252d2 | 2270 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2271 | { |
2bb867b5 | 2272 | if (eof || fd < 0) { |
5f8252d2 | 2273 | // XXX: we should check this condition in other callbacks then! |
2274 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2275 | // as a body consumer when the above condition(s) are detected. | |
2bb867b5 | 2276 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2277 | return; |
2278 | } | |
62e76326 | 2279 | |
5f8252d2 | 2280 | assert(requestBodySource != NULL); |
fc68f6b1 | 2281 | |
5f8252d2 | 2282 | if (requestBodySource->buf().hasContent()) { |
2283 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2284 | |
2bb867b5 | 2285 | if (flags.headers_parsed && !flags.abuse_detected) { |
2286 | flags.abuse_detected = 1; | |
cc192b50 | 2287 | debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << orig_request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2288 | |
585ab260 | 2289 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 2290 | comm_close(fd); |
21b92762 | 2291 | return; |
2292 | } | |
2293 | } | |
b6a2f15e | 2294 | } |
5f8252d2 | 2295 | |
2296 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2297 | } |
2298 | ||
5f8252d2 | 2299 | // premature end of the request body |
2bb867b5 | 2300 | void |
5f8252d2 | 2301 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2302 | { |
5f8252d2 | 2303 | ServerStateData::handleRequestBodyProducerAborted(); |
64b66b76 CT |
2304 | if (entry->isEmpty()) { |
2305 | debugs(11, 3, "request body aborted: FD " << fd); | |
2306 | ErrorState *err; | |
2307 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
2308 | err->xerrno = errno; | |
2309 | fwd->fail(err); | |
2310 | } | |
2311 | ||
39cb8c41 | 2312 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2313 | } |
2314 | ||
5f8252d2 | 2315 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2316 | void |
dc56a9b1 | 2317 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2318 | { |
dc56a9b1 | 2319 | if (io.size > 0) |
2320 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2321 | |
dc56a9b1 | 2322 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2323 | } |
3b299123 | 2324 | |
5f8252d2 | 2325 | // Quickly abort the transaction |
2326 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2327 | // including canceling close handlers | |
2328 | void | |
2329 | HttpStateData::abortTransaction(const char *reason) | |
2330 | { | |
2331 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
2332 | "; FD " << fd << ", this " << this); | |
fc68f6b1 | 2333 | |
3e8c047e | 2334 | if (fd >= 0) { |
62e76326 | 2335 | comm_close(fd); |
3e8c047e | 2336 | return; |
c23f0c74 | 2337 | } |
3e8c047e | 2338 | |
2339 | fwd->handleUnregisteredServerEnd(); | |
dc56a9b1 | 2340 | deleteThis("HttpStateData::abortTransaction"); |
54220df8 | 2341 | } |
ccf44862 | 2342 | |
7c4e4e7f | 2343 | HttpRequest * |
2344 | HttpStateData::originalRequest() | |
2afaba07 | 2345 | { |
7c4e4e7f | 2346 | return orig_request; |
2afaba07 | 2347 | } |