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da2b3a17 | 1 | |
30a4f2a8 | 2 | /* |
dc56a9b1 | 3 | * $Id: http.cc,v 1.547 2008/02/12 23:55:26 rousskov Exp $ |
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. | |
24 | * | |
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. | |
29 | * | |
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" |
aa839030 | 42 | #include "errorpage.h" |
0eb49b6d | 43 | #include "MemBuf.h" |
e6ccf245 | 44 | #include "http.h" |
f5691f9c | 45 | #include "AuthUserRequest.h" |
e6ccf245 | 46 | #include "Store.h" |
528b2c61 | 47 | #include "HttpReply.h" |
48 | #include "HttpRequest.h" | |
49 | #include "MemObject.h" | |
50 | #include "HttpHdrContRange.h" | |
b19dd748 | 51 | #include "HttpHdrSc.h" |
52 | #include "HttpHdrScTarget.h" | |
4fb35c3c | 53 | #include "ACLChecklist.h" |
21b92762 | 54 | #include "fde.h" |
b67e2c8c | 55 | #if DELAY_POOLS |
56 | #include "DelayPools.h" | |
57 | #endif | |
985c86bc | 58 | #include "SquidTime.h" |
af0bb8e5 | 59 | #include "TextException.h" |
60 | ||
61 | #define SQUID_ENTER_THROWING_CODE() try { | |
62 | #define SQUID_EXIT_THROWING_CODE(status) \ | |
63 | status = true; \ | |
64 | } \ | |
65 | catch (const TextException &e) { \ | |
66 | debugs (11, 1, "Exception error:" << e.message); \ | |
67 | status = false; \ | |
68 | } | |
e6ccf245 | 69 | |
2afaba07 | 70 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 71 | |
6bf8443a | 72 | static const char *const crlf = "\r\n"; |
4db43fab | 73 | |
f9cece6e | 74 | static void httpMaybeRemovePublic(StoreEntry *, http_status); |
30abd221 | 75 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, |
62e76326 | 76 | HttpHeader * hdr_out, int we_do_ranges, http_state_flags); |
528b2c61 | 77 | |
dc56a9b1 | 78 | HttpStateData::HttpStateData(FwdState *theFwdState) : AsyncJob("HttpStateData"), ServerStateData(theFwdState), |
79 | header_bytes_read(0), reply_bytes_read(0), httpChunkDecoder(NULL) | |
2bb867b5 | 80 | { |
81 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 82 | ignoreCacheControl = false; |
83 | surrogateNoStore = false; | |
a3d50c30 | 84 | fd = fwd->server_fd; |
85 | readBuf = new MemBuf; | |
86 | readBuf->init(4096, SQUID_TCP_SO_RCVBUF); | |
6dd9f4bd | 87 | orig_request = HTTPMSGLOCK(fwd->request); |
a3d50c30 | 88 | |
89 | if (fwd->servers) | |
90 | _peer = fwd->servers->_peer; /* might be NULL */ | |
91 | ||
92 | if (_peer) { | |
93 | const char *url; | |
94 | ||
95 | if (_peer->options.originserver) | |
30abd221 | 96 | url = orig_request->urlpath.buf(); |
a3d50c30 | 97 | else |
3900307b | 98 | url = entry->url(); |
a3d50c30 | 99 | |
5cafad19 | 100 | HttpRequest * proxy_req = new HttpRequest(orig_request->method, |
101 | orig_request->protocol, url); | |
a3d50c30 | 102 | |
cc192b50 | 103 | proxy_req->SetHost(_peer->host); |
a3d50c30 | 104 | |
105 | proxy_req->port = _peer->http_port; | |
106 | ||
107 | proxy_req->flags = orig_request->flags; | |
108 | ||
109 | proxy_req->lastmod = orig_request->lastmod; | |
110 | ||
111 | proxy_req->flags.proxying = 1; | |
112 | ||
6dd9f4bd | 113 | HTTPMSGUNLOCK(request); |
253caccb | 114 | |
6dd9f4bd | 115 | request = HTTPMSGLOCK(proxy_req); |
a3d50c30 | 116 | |
117 | /* | |
118 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
119 | * We might end up getting the object from somewhere else if, | |
120 | * for example, the request to this neighbor fails. | |
121 | */ | |
122 | if (_peer->options.proxy_only) | |
d88e3c49 | 123 | entry->releaseRequest(); |
a3d50c30 | 124 | |
125 | #if DELAY_POOLS | |
126 | ||
127 | entry->setNoDelay(_peer->options.no_delay); | |
128 | ||
129 | #endif | |
a3d50c30 | 130 | } |
131 | ||
132 | /* | |
133 | * register the handler to free HTTP state data when the FD closes | |
134 | */ | |
dc56a9b1 | 135 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
136 | closeHandler = asyncCall(9, 5, "httpStateData::httpStateConnClosed", | |
137 | Dialer(this,&HttpStateData::httpStateConnClosed)); | |
138 | comm_add_close_handler(fd, closeHandler); | |
2bb867b5 | 139 | } |
b8d8561b | 140 | |
2afaba07 | 141 | HttpStateData::~HttpStateData() |
f5558c95 | 142 | { |
253caccb | 143 | /* |
3b299123 | 144 | * don't forget that ~ServerStateData() gets called automatically |
253caccb | 145 | */ |
146 | ||
2afaba07 | 147 | if (!readBuf->isNull()) |
148 | readBuf->clean(); | |
62e76326 | 149 | |
2afaba07 | 150 | delete readBuf; |
151 | ||
af0bb8e5 | 152 | if(httpChunkDecoder) |
153 | delete httpChunkDecoder; | |
154 | ||
6dd9f4bd | 155 | HTTPMSGUNLOCK(orig_request); |
2afaba07 | 156 | |
5f8252d2 | 157 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; FD " << fd); |
158 | } | |
159 | ||
160 | int | |
fc68f6b1 | 161 | HttpStateData::dataDescriptor() const |
162 | { | |
5f8252d2 | 163 | return fd; |
2afaba07 | 164 | } |
dc56a9b1 | 165 | /* |
2afaba07 | 166 | static void |
167 | httpStateFree(int fd, void *data) | |
168 | { | |
169 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
bf8fe701 | 170 | debugs(11, 5, "httpStateFree: FD " << fd << ", httpState=" << data); |
5f8252d2 | 171 | delete httpState; |
dc56a9b1 | 172 | }*/ |
173 | ||
174 | void | |
175 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) | |
176 | { | |
177 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
178 | deleteThis("HttpStateData::httpStateConnClosed"); | |
f5558c95 | 179 | } |
180 | ||
b8d8561b | 181 | int |
60745f24 | 182 | httpCachable(const HttpRequestMethod& method) |
090089c4 | 183 | { |
090089c4 | 184 | /* GET and HEAD are cachable. Others are not. */ |
62e76326 | 185 | |
60745f24 | 186 | // TODO: replase to HttpRequestMethod::isCachable() ? |
6eb42cae | 187 | if (method != METHOD_GET && method != METHOD_HEAD) |
62e76326 | 188 | return 0; |
189 | ||
090089c4 | 190 | /* else cachable */ |
191 | return 1; | |
192 | } | |
193 | ||
dc56a9b1 | 194 | void |
195 | HttpStateData::httpTimeout(const CommTimeoutCbParams ¶ms) | |
090089c4 | 196 | { |
bf8fe701 | 197 | debugs(11, 4, "httpTimeout: FD " << fd << ": '" << entry->url() << "'" ); |
62e76326 | 198 | |
12158bdc | 199 | if (entry->store_status == STORE_PENDING) { |
dc56a9b1 | 200 | fwd->fail(errorCon(ERR_READ_TIMEOUT, HTTP_GATEWAY_TIMEOUT, fwd->request)); |
9b312a19 | 201 | } |
62e76326 | 202 | |
0d4d4170 | 203 | comm_close(fd); |
090089c4 | 204 | } |
205 | ||
f9cece6e | 206 | static void |
207 | httpMaybeRemovePublic(StoreEntry * e, http_status status) | |
208 | { | |
914b89a2 | 209 | int remove = 0; |
7e3ce7b9 | 210 | int forbidden = 0; |
f9cece6e | 211 | StoreEntry *pe; |
62e76326 | 212 | |
d46a87a8 | 213 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 214 | return; |
215 | ||
f9cece6e | 216 | switch (status) { |
62e76326 | 217 | |
f9cece6e | 218 | case HTTP_OK: |
62e76326 | 219 | |
f9cece6e | 220 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 221 | |
f9cece6e | 222 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 223 | |
f9cece6e | 224 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 225 | |
f9cece6e | 226 | case HTTP_MOVED_TEMPORARILY: |
62e76326 | 227 | |
f9cece6e | 228 | case HTTP_GONE: |
62e76326 | 229 | |
7e3ce7b9 | 230 | case HTTP_NOT_FOUND: |
914b89a2 | 231 | remove = 1; |
62e76326 | 232 | |
233 | break; | |
234 | ||
7e3ce7b9 | 235 | case HTTP_FORBIDDEN: |
62e76326 | 236 | |
7e3ce7b9 | 237 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 238 | forbidden = 1; |
239 | ||
240 | break; | |
241 | ||
f9cece6e | 242 | #if WORK_IN_PROGRESS |
62e76326 | 243 | |
c8fd0193 | 244 | case HTTP_UNAUTHORIZED: |
62e76326 | 245 | forbidden = 1; |
246 | ||
247 | break; | |
248 | ||
f9cece6e | 249 | #endif |
62e76326 | 250 | |
f9cece6e | 251 | default: |
7e3ce7b9 | 252 | #if QUESTIONABLE |
62e76326 | 253 | /* |
254 | * Any 2xx response should eject previously cached entities... | |
255 | */ | |
abb929f0 | 256 | |
62e76326 | 257 | if (status >= 200 && status < 300) |
914b89a2 | 258 | remove = 1; |
62e76326 | 259 | |
7e3ce7b9 | 260 | #endif |
62e76326 | 261 | |
262 | break; | |
f9cece6e | 263 | } |
62e76326 | 264 | |
914b89a2 | 265 | if (!remove && !forbidden) |
62e76326 | 266 | return; |
267 | ||
f9cece6e | 268 | assert(e->mem_obj); |
62e76326 | 269 | |
f66a9ef4 | 270 | if (e->mem_obj->request) |
62e76326 | 271 | pe = storeGetPublicByRequest(e->mem_obj->request); |
f66a9ef4 | 272 | else |
62e76326 | 273 | pe = storeGetPublic(e->mem_obj->url, e->mem_obj->method); |
274 | ||
f66a9ef4 | 275 | if (pe != NULL) { |
62e76326 | 276 | assert(e != pe); |
5f33b71d | 277 | pe->release(); |
0856d155 | 278 | } |
62e76326 | 279 | |
914b89a2 | 280 | /** \par |
7e3ce7b9 | 281 | * Also remove any cached HEAD response in case the object has |
282 | * changed. | |
283 | */ | |
f66a9ef4 | 284 | if (e->mem_obj->request) |
62e76326 | 285 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 286 | else |
62e76326 | 287 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
288 | ||
f66a9ef4 | 289 | if (pe != NULL) { |
62e76326 | 290 | assert(e != pe); |
5f33b71d | 291 | pe->release(); |
7e3ce7b9 | 292 | } |
62e76326 | 293 | |
7e3ce7b9 | 294 | if (forbidden) |
62e76326 | 295 | return; |
296 | ||
914b89a2 | 297 | /// \todo AYJ: given the coment below + new behaviour of accepting METHOD_UNKNOWN, should we invert this test |
298 | /// removing the object unless the method is nown to be safely kept? | |
299 | switch (e->mem_obj->method.id()) { | |
62e76326 | 300 | |
7e3ce7b9 | 301 | case METHOD_PUT: |
62e76326 | 302 | |
7e3ce7b9 | 303 | case METHOD_DELETE: |
62e76326 | 304 | |
7e3ce7b9 | 305 | case METHOD_PROPPATCH: |
62e76326 | 306 | |
7e3ce7b9 | 307 | case METHOD_MKCOL: |
62e76326 | 308 | |
7e3ce7b9 | 309 | case METHOD_MOVE: |
62e76326 | 310 | |
42b51993 | 311 | case METHOD_BMOVE: |
62e76326 | 312 | |
42b51993 | 313 | case METHOD_BDELETE: |
914b89a2 | 314 | /** \par |
315 | * Remove any cached GET object if it is believed that the | |
62e76326 | 316 | * object may have changed as a result of other methods |
317 | */ | |
318 | ||
319 | if (e->mem_obj->request) | |
320 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_GET); | |
321 | else | |
322 | pe = storeGetPublic(e->mem_obj->url, METHOD_GET); | |
323 | ||
324 | if (pe != NULL) { | |
325 | assert(e != pe); | |
5f33b71d | 326 | pe->release(); |
62e76326 | 327 | } |
328 | ||
329 | break; | |
330 | ||
c8be6d7b | 331 | default: |
62e76326 | 332 | /* Keep GCC happy. The methods above are all mutating HTTP methods |
333 | */ | |
334 | break; | |
0856d155 | 335 | } |
f9cece6e | 336 | } |
337 | ||
43ae1d95 | 338 | void |
339 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
340 | { | |
f41735ea | 341 | #if USE_SQUID_ESI |
43ae1d95 | 342 | |
343 | if (request->flags.accelerated && reply->surrogate_control) { | |
344 | HttpHdrScTarget *sctusable = | |
345 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
346 | Config.Accel.surrogate_id); | |
347 | ||
348 | if (sctusable) { | |
349 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
350 | (Config.onoff.surrogate_is_remote | |
351 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
352 | surrogateNoStore = true; | |
5ed72359 | 353 | entry->makePrivate(); |
43ae1d95 | 354 | } |
355 | ||
356 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
357 | * accelerated request or not... | |
358 | * Still, this is an abtraction breach. - RC | |
359 | */ | |
360 | if (sctusable->max_age != -1) { | |
361 | if (sctusable->max_age < sctusable->max_stale) | |
362 | reply->expires = reply->date + sctusable->max_age; | |
363 | else | |
364 | reply->expires = reply->date + sctusable->max_stale; | |
365 | ||
366 | /* And update the timestamps */ | |
3900307b | 367 | entry->timestampsSet(); |
43ae1d95 | 368 | } |
369 | ||
370 | /* We ignore cache-control directives as per the Surrogate specification */ | |
371 | ignoreCacheControl = true; | |
372 | ||
373 | httpHdrScTargetDestroy(sctusable); | |
374 | } | |
375 | } | |
376 | ||
377 | #endif | |
378 | } | |
379 | ||
924f73bc | 380 | int |
381 | HttpStateData::cacheableReply() | |
c54e9052 | 382 | { |
585ab260 | 383 | HttpReply const *rep = finalReply(); |
528b2c61 | 384 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 385 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 386 | const char *v; |
38f9c547 | 387 | #if HTTP_VIOLATIONS |
62e76326 | 388 | |
38f9c547 | 389 | const refresh_t *R = NULL; |
b6445726 | 390 | |
346be6ad | 391 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 392 | * and then checks if the specified flag is set. The main purpose |
393 | * of this is to simplify the refresh pattern lookup and HTTP_VIOLATIONS | |
394 | * condition | |
395 | */ | |
396 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 397 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
398 | (R && R->flags.flag)) | |
b445957e | 399 | #else |
400 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 401 | #endif |
43ae1d95 | 402 | |
38f9c547 | 403 | if (surrogateNoStore) |
62e76326 | 404 | return 0; |
405 | ||
924f73bc | 406 | if (!ignoreCacheControl) { |
38f9c547 | 407 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 408 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 409 | return 0; |
410 | } | |
411 | ||
412 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 413 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 414 | return 0; |
415 | } | |
416 | ||
417 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 418 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 419 | return 0; |
420 | } | |
43ae1d95 | 421 | } |
422 | ||
924f73bc | 423 | if (request->flags.auth) { |
62e76326 | 424 | /* |
425 | * Responses to requests with authorization may be cached | |
426 | * only if a Cache-Control: public reply header is present. | |
427 | * RFC 2068, sec 14.9.4 | |
428 | */ | |
429 | ||
38f9c547 | 430 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 431 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 432 | return 0; |
433 | } | |
a6dfe2d9 | 434 | } |
62e76326 | 435 | |
c68e9c6b | 436 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
437 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 438 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 439 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 440 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 441 | s.clean(); |
62e76326 | 442 | |
38f9c547 | 443 | if (no_cache) { |
b6445726 | 444 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 445 | return 0; |
446 | } | |
c68e9c6b | 447 | } |
62e76326 | 448 | |
c68e9c6b | 449 | /* |
450 | * The "multipart/x-mixed-replace" content type is used for | |
451 | * continuous push replies. These are generally dynamic and | |
452 | * probably should not be cachable | |
453 | */ | |
a9925b40 | 454 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 455 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
456 | return 0; | |
457 | ||
585ab260 | 458 | switch (rep->sline.status) { |
62e76326 | 459 | /* Responses that are cacheable */ |
460 | ||
19a04dac | 461 | case HTTP_OK: |
62e76326 | 462 | |
19a04dac | 463 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 464 | |
19a04dac | 465 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 466 | |
19a04dac | 467 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 468 | |
19a04dac | 469 | case HTTP_GONE: |
62e76326 | 470 | /* |
471 | * Don't cache objects that need to be refreshed on next request, | |
472 | * unless we know how to refresh it. | |
473 | */ | |
474 | ||
1b5358c3 | 475 | if (!refreshIsCachable(entry)) { |
bf8fe701 | 476 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 477 | return 0; |
fc68f6b1 | 478 | } |
62e76326 | 479 | |
480 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
481 | /* check that is it enough to check headers @?@ */ | |
482 | if (rep->date > -1) | |
483 | return 1; | |
484 | else if (rep->last_modified > -1) | |
485 | return 1; | |
924f73bc | 486 | else if (!_peer) |
62e76326 | 487 | return 1; |
488 | ||
489 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
490 | else if (rep->expires > -1) | |
491 | return 1; | |
492 | else | |
493 | return 0; | |
494 | ||
495 | /* NOTREACHED */ | |
496 | break; | |
497 | ||
498 | /* Responses that only are cacheable if the server says so */ | |
499 | ||
19a04dac | 500 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 501 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 502 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 503 | return 1; |
504 | else | |
505 | return 0; | |
506 | ||
507 | /* NOTREACHED */ | |
508 | break; | |
509 | ||
510 | /* Errors can be negatively cached */ | |
511 | ||
19a04dac | 512 | case HTTP_NO_CONTENT: |
62e76326 | 513 | |
19a04dac | 514 | case HTTP_USE_PROXY: |
62e76326 | 515 | |
19a04dac | 516 | case HTTP_BAD_REQUEST: |
62e76326 | 517 | |
19a04dac | 518 | case HTTP_FORBIDDEN: |
62e76326 | 519 | |
19a04dac | 520 | case HTTP_NOT_FOUND: |
62e76326 | 521 | |
19a04dac | 522 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 523 | |
19a04dac | 524 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 525 | |
19a04dac | 526 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 527 | |
19a04dac | 528 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 529 | |
19a04dac | 530 | case HTTP_BAD_GATEWAY: |
62e76326 | 531 | |
19a04dac | 532 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 533 | |
19a04dac | 534 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 535 | return -1; |
536 | ||
537 | /* NOTREACHED */ | |
538 | break; | |
539 | ||
540 | /* Some responses can never be cached */ | |
541 | ||
0cdcddb9 | 542 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 543 | |
19a04dac | 544 | case HTTP_SEE_OTHER: |
62e76326 | 545 | |
19a04dac | 546 | case HTTP_NOT_MODIFIED: |
62e76326 | 547 | |
19a04dac | 548 | case HTTP_UNAUTHORIZED: |
62e76326 | 549 | |
19a04dac | 550 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 551 | |
0cdcddb9 | 552 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 553 | |
554 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 555 | |
556 | case HTTP_PAYMENT_REQUIRED: | |
557 | case HTTP_NOT_ACCEPTABLE: | |
558 | case HTTP_REQUEST_TIMEOUT: | |
559 | case HTTP_CONFLICT: | |
560 | case HTTP_LENGTH_REQUIRED: | |
561 | case HTTP_PRECONDITION_FAILED: | |
562 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
563 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
564 | case HTTP_UNPROCESSABLE_ENTITY: | |
565 | case HTTP_LOCKED: | |
566 | case HTTP_FAILED_DEPENDENCY: | |
567 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 568 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
569 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 570 | |
62e76326 | 571 | return 0; |
572 | ||
c54e9052 | 573 | default: /* Unknown status code */ |
585ab260 | 574 | debugs (11, 0, HERE << "HttpStateData::cacheableReply: unexpected http status code " << rep->sline.status); |
62e76326 | 575 | |
576 | return 0; | |
577 | ||
578 | /* NOTREACHED */ | |
579 | break; | |
c54e9052 | 580 | } |
62e76326 | 581 | |
79d39a72 | 582 | /* NOTREACHED */ |
c54e9052 | 583 | } |
090089c4 | 584 | |
f66a9ef4 | 585 | /* |
586 | * For Vary, store the relevant request headers as | |
587 | * virtual headers in the reply | |
588 | * Returns false if the variance cannot be stored | |
589 | */ | |
590 | const char * | |
190154cf | 591 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 592 | { |
30abd221 | 593 | String vary, hdr; |
f66a9ef4 | 594 | const char *pos = NULL; |
595 | const char *item; | |
596 | const char *value; | |
597 | int ilen; | |
30abd221 | 598 | static String vstr; |
f66a9ef4 | 599 | |
30abd221 | 600 | vstr.clean(); |
a9925b40 | 601 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 602 | |
f66a9ef4 | 603 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 604 | char *name = (char *)xmalloc(ilen + 1); |
605 | xstrncpy(name, item, ilen + 1); | |
606 | Tolower(name); | |
9776e3cc | 607 | |
608 | if (strcmp(name, "*") == 0) { | |
609 | /* Can not handle "Vary: *" withtout ETag support */ | |
610 | safe_free(name); | |
30abd221 | 611 | vstr.clean(); |
9776e3cc | 612 | break; |
613 | } | |
614 | ||
62e76326 | 615 | strListAdd(&vstr, name, ','); |
a9925b40 | 616 | hdr = request->header.getByName(name); |
62e76326 | 617 | safe_free(name); |
30abd221 | 618 | value = hdr.buf(); |
62e76326 | 619 | |
620 | if (value) { | |
621 | value = rfc1738_escape_part(value); | |
622 | vstr.append("=\"", 2); | |
623 | vstr.append(value); | |
624 | vstr.append("\"", 1); | |
625 | } | |
626 | ||
30abd221 | 627 | hdr.clean(); |
f66a9ef4 | 628 | } |
62e76326 | 629 | |
30abd221 | 630 | vary.clean(); |
f66a9ef4 | 631 | #if X_ACCELERATOR_VARY |
62e76326 | 632 | |
aa38be4a | 633 | pos = NULL; |
a9925b40 | 634 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 635 | |
f66a9ef4 | 636 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 637 | char *name = (char *)xmalloc(ilen + 1); |
638 | xstrncpy(name, item, ilen + 1); | |
639 | Tolower(name); | |
640 | strListAdd(&vstr, name, ','); | |
a9925b40 | 641 | hdr = request->header.getByName(name); |
62e76326 | 642 | safe_free(name); |
30abd221 | 643 | value = hdr.buf(); |
62e76326 | 644 | |
645 | if (value) { | |
646 | value = rfc1738_escape_part(value); | |
647 | vstr.append("=\"", 2); | |
648 | vstr.append(value); | |
649 | vstr.append("\"", 1); | |
650 | } | |
651 | ||
30abd221 | 652 | hdr.clean(); |
f66a9ef4 | 653 | } |
62e76326 | 654 | |
30abd221 | 655 | vary.clean(); |
f66a9ef4 | 656 | #endif |
62e76326 | 657 | |
30abd221 | 658 | debugs(11, 3, "httpMakeVaryMark: " << vstr.buf()); |
659 | return vstr.buf(); | |
f66a9ef4 | 660 | } |
661 | ||
2afaba07 | 662 | void |
663 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
664 | { | |
665 | if (flags.keepalive) | |
666 | if (_peer) | |
667 | _peer->stats.n_keepalives_sent++; | |
668 | ||
669 | if (reply->keep_alive) { | |
670 | if (_peer) | |
671 | _peer->stats.n_keepalives_recv++; | |
672 | ||
673 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
bf8fe701 | 674 | debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
675 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); | |
2afaba07 | 676 | flags.keepalive_broken = 1; |
677 | } | |
678 | } | |
679 | } | |
680 | ||
681 | void | |
682 | HttpStateData::checkDateSkew(HttpReply *reply) | |
683 | { | |
684 | if (reply->date > -1 && !_peer) { | |
685 | int skew = abs((int)(reply->date - squid_curtime)); | |
686 | ||
687 | if (skew > 86400) | |
cc192b50 | 688 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 689 | } |
690 | } | |
691 | ||
073ba374 | 692 | /** |
4eb368f9 | 693 | * This creates the error page itself.. its likely |
694 | * that the forward ported reply header max size patch | |
695 | * generates non http conformant error pages - in which | |
696 | * case the errors where should be 'BAD_GATEWAY' etc | |
697 | */ | |
b8d8561b | 698 | void |
2afaba07 | 699 | HttpStateData::processReplyHeader() |
f5558c95 | 700 | { |
073ba374 | 701 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
82384411 | 702 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
bf8fe701 | 703 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 704 | |
1a98175f | 705 | assert(!flags.headers_parsed); |
62e76326 | 706 | |
2afaba07 | 707 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 708 | |
585ab260 | 709 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 710 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 711 | |
793c0ba9 | 712 | if(!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0){ |
713 | MemBuf *mb; | |
714 | HttpReply *tmprep = new HttpReply; | |
715 | tmprep->sline.version = HttpVersion(1, 0); | |
716 | tmprep->sline.status = HTTP_OK; | |
717 | tmprep->header.putTime(HDR_DATE, squid_curtime); | |
718 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); | |
719 | mb = tmprep->pack(); | |
720 | newrep->parse(mb, eof, &error); | |
721 | delete tmprep; | |
4eb368f9 | 722 | } |
793c0ba9 | 723 | else{ |
724 | if (!parsed && error > 0) { // unrecoverable parsing error | |
725 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
726 | flags.headers_parsed = 1; | |
ba82c452 | 727 | newrep->sline.version = HttpVersion(1, 0); |
728 | newrep->sline.status = error; | |
585ab260 | 729 | HttpReply *vrep = setVirginReply(newrep); |
730 | entry->replaceHttpReply(vrep); | |
793c0ba9 | 731 | ctx_exit(ctx); |
732 | return; | |
733 | } | |
073ba374 | 734 | |
793c0ba9 | 735 | if (!parsed) { // need more data |
736 | assert(!error); | |
737 | assert(!eof); | |
738 | delete newrep; | |
739 | ctx_exit(ctx); | |
740 | return; | |
741 | } | |
073ba374 | 742 | |
793c0ba9 | 743 | debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------"); |
073ba374 | 744 | |
793c0ba9 | 745 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); |
746 | readBuf->consume(header_bytes_read); | |
f5558c95 | 747 | } |
62e76326 | 748 | |
af0bb8e5 | 749 | flags.chunked = 0; |
750 | if (newrep->header.hasListMember(HDR_TRANSFER_ENCODING, "chunked", ',')) { | |
751 | flags.chunked = 1; | |
752 | httpChunkDecoder = new ChunkedCodingParser; | |
753 | } | |
754 | ||
585ab260 | 755 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 756 | flags.headers_parsed = 1; |
757 | ||
585ab260 | 758 | keepaliveAccounting(vrep); |
47ac2ebe | 759 | |
585ab260 | 760 | checkDateSkew(vrep); |
47ac2ebe | 761 | |
585ab260 | 762 | processSurrogateControl (vrep); |
528b2c61 | 763 | |
073ba374 | 764 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 765 | * Parse the header and remove all referenced headers |
766 | */ | |
767 | ||
2afaba07 | 768 | ctx_exit(ctx); |
7dc79973 | 769 | |
2afaba07 | 770 | } |
771 | ||
5f8252d2 | 772 | // Called when we parsed (and possibly adapted) the headers but |
773 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 774 | void |
775 | HttpStateData::haveParsedReplyHeaders() | |
776 | { | |
777 | Ctx ctx = ctx_enter(entry->mem_obj->url); | |
585ab260 | 778 | HttpReply *rep = finalReply(); |
2afaba07 | 779 | |
585ab260 | 780 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
781 | rep->content_range) | |
782 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 783 | |
3900307b | 784 | entry->timestampsSet(); |
62e76326 | 785 | |
9bc73deb | 786 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 787 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 788 | |
9bc73deb | 789 | if (neighbors_do_private_keys) |
585ab260 | 790 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 791 | |
585ab260 | 792 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 793 | #if X_ACCELERATOR_VARY |
585ab260 | 794 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 795 | #endif |
4b44c907 | 796 | ) { |
585ab260 | 797 | const char *vary = httpMakeVaryMark(orig_request, rep); |
4b44c907 | 798 | |
799 | if (!vary) { | |
5ed72359 | 800 | entry->makePrivate(); |
4b44c907 | 801 | goto no_cache; |
802 | ||
62e76326 | 803 | } |
804 | ||
4b44c907 | 805 | entry->mem_obj->vary_headers = xstrdup(vary); |
806 | } | |
807 | ||
2afaba07 | 808 | #if WIP_FWD_LOG |
809 | fwdStatus(fwd, s); | |
810 | ||
811 | #endif | |
812 | /* | |
813 | * If its not a reply that we will re-forward, then | |
814 | * allow the client to get it. | |
815 | */ | |
585ab260 | 816 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 817 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
818 | ||
4b44c907 | 819 | switch (cacheableReply()) { |
820 | ||
821 | case 1: | |
5ed72359 | 822 | entry->makePublic(); |
62e76326 | 823 | break; |
824 | ||
9bc73deb | 825 | case 0: |
5ed72359 | 826 | entry->makePrivate(); |
62e76326 | 827 | break; |
828 | ||
9bc73deb | 829 | case -1: |
4b44c907 | 830 | |
ac9cc053 | 831 | #if HTTP_VIOLATIONS |
4b44c907 | 832 | if (Config.negativeTtl > 0) |
5ed72359 | 833 | entry->cacheNegatively(); |
4b44c907 | 834 | else |
ac9cc053 | 835 | #endif |
5ed72359 | 836 | entry->makePrivate(); |
4b44c907 | 837 | |
62e76326 | 838 | break; |
839 | ||
9bc73deb | 840 | default: |
62e76326 | 841 | assert(0); |
4b44c907 | 842 | |
62e76326 | 843 | break; |
9bc73deb | 844 | } |
62e76326 | 845 | |
4b44c907 | 846 | no_cache: |
847 | ||
585ab260 | 848 | if (!ignoreCacheControl && rep->cache_control) { |
849 | if (EBIT_TEST(rep->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 850 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
585ab260 | 851 | else if (EBIT_TEST(rep->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 852 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 853 | } |
62e76326 | 854 | |
c3609322 | 855 | #if HEADERS_LOG |
585ab260 | 856 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 857 | |
c3609322 | 858 | #endif |
5f8252d2 | 859 | |
860 | ctx_exit(ctx); | |
f5558c95 | 861 | } |
862 | ||
528b2c61 | 863 | HttpStateData::ConnectionStatus |
864 | HttpStateData::statusIfComplete() const | |
603a02fd | 865 | { |
585ab260 | 866 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
867 | /** \par |
868 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 869 | |
2afaba07 | 870 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 871 | return COMPLETE_NONPERSISTENT_MSG; |
872 | ||
073ba374 AJ |
873 | /** \par |
874 | * If we didn't send a keep-alive request header, then this | |
978e455f | 875 | * can not be a persistent connection. |
876 | */ | |
528b2c61 | 877 | if (!flags.keepalive) |
62e76326 | 878 | return COMPLETE_NONPERSISTENT_MSG; |
879 | ||
073ba374 | 880 | /** \par |
72b63f06 | 881 | * If we haven't sent the whole request then this can not be a persistent |
882 | * connection. | |
883 | */ | |
884 | if (!flags.request_sent) { | |
60745f24 | 885 | debugs(11, 1, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(orig_request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 886 | return COMPLETE_NONPERSISTENT_MSG; |
887 | } | |
888 | ||
073ba374 | 889 | /** \par |
9f5a2895 | 890 | * What does the reply have to say about keep-alive? |
891 | */ | |
073ba374 AJ |
892 | /** |
893 | \bug XXX BUG? | |
b6a2f15e | 894 | * If the origin server (HTTP/1.0) does not send a keep-alive |
895 | * header, but keeps the connection open anyway, what happens? | |
896 | * We'll return here and http.c waits for an EOF before changing | |
897 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
898 | * and an error status code, and we might have to wait until | |
899 | * the server times out the socket. | |
900 | */ | |
2afaba07 | 901 | if (!rep->keep_alive) |
528b2c61 | 902 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 903 | |
528b2c61 | 904 | return COMPLETE_PERSISTENT_MSG; |
905 | } | |
906 | ||
907 | HttpStateData::ConnectionStatus | |
908 | HttpStateData::persistentConnStatus() const | |
909 | { | |
ba82c452 | 910 | debugs(11, 3, "persistentConnStatus: FD " << fd << " eof=" << eof); |
585ab260 | 911 | const HttpReply *vrep = virginReply(); |
912 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
62e76326 | 913 | |
5f8252d2 | 914 | /* If we haven't seen the end of reply headers, we are not done */ |
bf8fe701 | 915 | debugs(11, 5, "persistentConnStatus: flags.headers_parsed=" << flags.headers_parsed); |
fc68f6b1 | 916 | |
1a98175f | 917 | if (!flags.headers_parsed) |
62e76326 | 918 | return INCOMPLETE_MSG; |
919 | ||
af0bb8e5 | 920 | /* In chunked responce we do not know the content length but we are absolutelly |
921 | * sure about the end of response, so we are calling the statusIfComplete to | |
922 | * decide if we can be persistant | |
923 | */ | |
924 | if (eof && flags.chunked) | |
925 | return statusIfComplete(); | |
926 | ||
ba82c452 | 927 | if (eof) // already reached EOF |
928 | return COMPLETE_NONPERSISTENT_MSG; | |
929 | ||
47f6e231 | 930 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 931 | |
bf8fe701 | 932 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 933 | |
35282fbf | 934 | /* If the body size is unknown we must wait for EOF */ |
935 | if (clen < 0) | |
62e76326 | 936 | return INCOMPLETE_MSG; |
937 | ||
5f8252d2 | 938 | /* If the body size is known, we must wait until we've gotten all of it. */ |
939 | if (clen > 0) { | |
940 | // old technique: | |
585ab260 | 941 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 942 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 943 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 944 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 945 | |
585ab260 | 946 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 947 | return INCOMPLETE_MSG; |
948 | } | |
62e76326 | 949 | |
5f8252d2 | 950 | /* If there is no message body or we got it all, we can be persistent */ |
951 | return statusIfComplete(); | |
603a02fd | 952 | } |
090089c4 | 953 | |
2afaba07 | 954 | /* |
955 | * This is the callback after some data has been read from the network | |
956 | */ | |
dc56a9b1 | 957 | /* |
e5ee81f0 | 958 | void |
959 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 960 | { |
961 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 962 | assert (fd == httpState->fd); |
2afaba07 | 963 | // assert(buf == readBuf->content()); |
1d5161bd | 964 | PROF_start(HttpStateData_readReply); |
2afaba07 | 965 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 966 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 967 | } |
dc56a9b1 | 968 | */ |
073ba374 | 969 | |
2afdbf48 | 970 | /* XXX this function is too long! */ |
c4b7a5a9 | 971 | void |
dc56a9b1 | 972 | HttpStateData::readReply (const CommIoCbParams &io) |
090089c4 | 973 | { |
30a4f2a8 | 974 | int bin; |
090089c4 | 975 | int clen; |
dc56a9b1 | 976 | int len = io.size; |
c4b7a5a9 | 977 | |
dc56a9b1 | 978 | assert(fd == io.fd); |
979 | ||
980 | flags.do_next_read = 0; | |
981 | ||
7a7cc03f | 982 | debugs(11, 5, "httpReadReply: FD " << fd << ": len " << len << "."); |
62e76326 | 983 | |
7a7cc03f | 984 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 985 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 986 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 987 | return; |
988 | } | |
989 | ||
e92e4e44 | 990 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
5f8252d2 | 991 | maybeReadVirginBody(); |
62e76326 | 992 | return; |
e92e4e44 | 993 | } |
c4b7a5a9 | 994 | |
fdf55365 | 995 | // handle I/O errors |
dc56a9b1 | 996 | if (io.flag != COMM_OK || len < 0) { |
7a7cc03f | 997 | debugs(11, 2, "httpReadReply: FD " << fd << ": read failure: " << xstrerror() << "."); |
fdf55365 | 998 | |
dc56a9b1 | 999 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1000 | flags.do_next_read = 1; |
1001 | } else { | |
1002 | ErrorState *err; | |
1003 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
dc56a9b1 | 1004 | err->xerrno = io.xerrno; |
fdf55365 | 1005 | fwd->fail(err); |
1006 | flags.do_next_read = 0; | |
1007 | comm_close(fd); | |
1008 | } | |
1009 | ||
1010 | return; | |
1011 | } | |
1012 | ||
7a7cc03f | 1013 | // update I/O stats |
fdf55365 | 1014 | if (len > 0) { |
2afaba07 | 1015 | readBuf->appended(len); |
5f8252d2 | 1016 | reply_bytes_read += len; |
447e176b | 1017 | #if DELAY_POOLS |
2afaba07 | 1018 | |
1019 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 1020 | delayId.bytesIn(len); |
447e176b | 1021 | #endif |
62e76326 | 1022 | |
1023 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1024 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1025 | IOStats.Http.reads++; |
1026 | ||
1027 | for (clen = len - 1, bin = 0; clen; bin++) | |
1028 | clen >>= 1; | |
1029 | ||
1030 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 1031 | } |
62e76326 | 1032 | |
073ba374 AJ |
1033 | /** \par |
1034 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1035 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1036 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1037 | * not allowing connection reuse in the first place. | |
1038 | */ | |
1039 | #if DONT_DO_THIS | |
fdf55365 | 1040 | if (!flags.headers_parsed && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1041 | /* Skip whitespace between replies */ |
62e76326 | 1042 | |
e4755e29 | 1043 | while (len > 0 && xisspace(*buf)) |
62e76326 | 1044 | xmemmove(buf, buf + 1, len--); |
1045 | ||
1046 | if (len == 0) { | |
1047 | /* Continue to read... */ | |
21b92762 | 1048 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1049 | flags.do_next_read = 1; |
5f8252d2 | 1050 | maybeReadVirginBody(); |
62e76326 | 1051 | return; |
1052 | } | |
5ede6c8f | 1053 | } |
62e76326 | 1054 | |
5fa061b8 | 1055 | #endif |
1056 | ||
ba82c452 | 1057 | if (len == 0) { // reached EOF? |
62e76326 | 1058 | eof = 1; |
f61f0107 | 1059 | flags.do_next_read = 0; |
ba82c452 | 1060 | } |
62e76326 | 1061 | |
ba82c452 | 1062 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1063 | PROF_start(HttpStateData_processReplyHeader); | |
1064 | processReplyHeader(); | |
1065 | PROF_stop(HttpStateData_processReplyHeader); | |
1066 | ||
1067 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1068 | return; // TODO: send errors to ICAP | |
1069 | ||
585ab260 | 1070 | adaptOrFinalizeReply(); |
ba82c452 | 1071 | } |
1072 | ||
1073 | // kick more reads if needed and/or process the response body, if any | |
1074 | PROF_start(HttpStateData_processReplyBody); | |
1075 | processReplyBody(); // may call serverComplete() | |
1076 | PROF_stop(HttpStateData_processReplyBody); | |
1077 | } | |
1078 | ||
073ba374 AJ |
1079 | /** |
1080 | \retval true if we can continue with processing the body or doing ICAP. | |
1081 | */ | |
ba82c452 | 1082 | bool |
1083 | HttpStateData::continueAfterParsingHeader() | |
1084 | { | |
073ba374 | 1085 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1086 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1087 | flags.do_next_read = 1; | |
073ba374 AJ |
1088 | /** \retval false If we have not finished parsing the headers and may get more data. |
1089 | * Schedules more reads to retrieve the missing data. | |
1090 | */ | |
ba82c452 | 1091 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1092 | return false; |
ba82c452 | 1093 | } |
1094 | ||
073ba374 | 1095 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1096 | |
1097 | err_type error = ERR_NONE; | |
1098 | ||
1099 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1100 | // check for header parsing errors | |
585ab260 | 1101 | if (HttpReply *vrep = virginReply()) { |
1102 | const http_status s = vrep->sline.status; | |
1103 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1104 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
1105 | error = ERR_INVALID_RESP; | |
1106 | } else | |
1107 | if (s == HTTP_HEADER_TOO_LARGE) { | |
b6b6f466 | 1108 | fwd->dontRetry(true); |
ba82c452 | 1109 | error = ERR_TOO_BIG; |
4eb368f9 | 1110 | } else { |
ba82c452 | 1111 | return true; // done parsing, got reply, and no error |
4eb368f9 | 1112 | } |
ba82c452 | 1113 | } else { |
1114 | // parsed headers but got no reply | |
1115 | error = ERR_INVALID_RESP; | |
62e76326 | 1116 | } |
090089c4 | 1117 | } else { |
ba82c452 | 1118 | assert(eof); |
1119 | error = readBuf->hasContent() ? | |
1120 | ERR_INVALID_RESP : ERR_ZERO_SIZE_OBJECT; | |
2afaba07 | 1121 | } |
ba82c452 | 1122 | |
1123 | assert(error != ERR_NONE); | |
1124 | entry->reset(); | |
1125 | fwd->fail(errorCon(error, HTTP_BAD_GATEWAY, fwd->request)); | |
1126 | flags.do_next_read = 0; | |
1127 | comm_close(fd); | |
1128 | return false; // quit on error | |
2afaba07 | 1129 | } |
1130 | ||
073ba374 | 1131 | /** |
2afaba07 | 1132 | * Call this when there is data from the origin server |
1133 | * which should be sent to either StoreEntry, or to ICAP... | |
1134 | */ | |
1135 | void | |
5f8252d2 | 1136 | HttpStateData::writeReplyBody() |
2afaba07 | 1137 | { |
5f8252d2 | 1138 | const char *data = readBuf->content(); |
1139 | int len = readBuf->contentSize(); | |
bc81cb2b | 1140 | addVirginReplyBody(data, len); |
5f8252d2 | 1141 | readBuf->consume(len); |
af0bb8e5 | 1142 | } |
fc68f6b1 | 1143 | |
af0bb8e5 | 1144 | bool |
1145 | HttpStateData::decodeAndWriteReplyBody() | |
1146 | { | |
1147 | const char *data = NULL; | |
1148 | int len; | |
1149 | bool status = false; | |
1150 | assert(flags.chunked); | |
1151 | assert(httpChunkDecoder); | |
1152 | SQUID_ENTER_THROWING_CODE(); | |
1153 | MemBuf decodedData; | |
1154 | decodedData.init(); | |
1155 | const bool done = httpChunkDecoder->parse(readBuf,&decodedData); | |
1156 | len = decodedData.contentSize(); | |
1157 | data=decodedData.content(); | |
1158 | addVirginReplyBody(data, len); | |
1159 | if (done) { | |
1160 | eof = 1; | |
1161 | flags.do_next_read = 0; | |
1162 | } | |
1163 | SQUID_EXIT_THROWING_CODE(status); | |
1164 | return status; | |
e6ccf245 | 1165 | } |
1166 | ||
073ba374 | 1167 | /** |
2afaba07 | 1168 | * processReplyBody has two purposes: |
1169 | * 1 - take the reply body data, if any, and put it into either | |
1170 | * the StoreEntry, or give it over to ICAP. | |
1171 | * 2 - see if we made it to the end of the response (persistent | |
1172 | * connections and such) | |
1173 | */ | |
e6ccf245 | 1174 | void |
2afaba07 | 1175 | HttpStateData::processReplyBody() |
e6ccf245 | 1176 | { |
dc56a9b1 | 1177 | AsyncCall::Pointer call; |
cc192b50 | 1178 | IPAddress client_addr; |
fc68f6b1 | 1179 | |
1a98175f | 1180 | if (!flags.headers_parsed) { |
f61f0107 | 1181 | flags.do_next_read = 1; |
5f8252d2 | 1182 | maybeReadVirginBody(); |
62e76326 | 1183 | return; |
528b2c61 | 1184 | } |
62e76326 | 1185 | |
a83c6ed6 AR |
1186 | #if USE_ADAPTATION |
1187 | if (adaptationAccessCheckPending) | |
2afaba07 | 1188 | return; |
fc68f6b1 | 1189 | |
2afaba07 | 1190 | #endif |
62e76326 | 1191 | |
2afaba07 | 1192 | /* |
1193 | * At this point the reply headers have been parsed and consumed. | |
1194 | * That means header content has been removed from readBuf and | |
1195 | * it contains only body data. | |
1196 | */ | |
af0bb8e5 | 1197 | if(flags.chunked){ |
1198 | if(!decodeAndWriteReplyBody()){ | |
1199 | flags.do_next_read = 0; | |
1200 | serverComplete(); | |
1201 | return; | |
1202 | } | |
1203 | } | |
1204 | else | |
1205 | writeReplyBody(); | |
528b2c61 | 1206 | |
e6ccf245 | 1207 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1208 | /* |
073ba374 | 1209 | * The above writeReplyBody() call could ABORT this entry, |
62e76326 | 1210 | * in that case, the server FD should already be closed. |
1211 | * there's nothing for us to do. | |
1212 | */ | |
1213 | (void) 0; | |
1214 | } else | |
1215 | switch (persistentConnStatus()) { | |
62e76326 | 1216 | case INCOMPLETE_MSG: |
bf8fe701 | 1217 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG"); |
21b92762 | 1218 | /* Wait for more data or EOF condition */ |
21b92762 | 1219 | if (flags.keepalive_broken) { |
dc56a9b1 | 1220 | call = NULL; |
1221 | commSetTimeout(fd, 10, call); | |
21b92762 | 1222 | } else { |
dc56a9b1 | 1223 | call = NULL; |
1224 | commSetTimeout(fd, Config.Timeout.read, call); | |
21b92762 | 1225 | } |
1226 | ||
f61f0107 | 1227 | flags.do_next_read = 1; |
62e76326 | 1228 | break; |
1229 | ||
1230 | case COMPLETE_PERSISTENT_MSG: | |
bf8fe701 | 1231 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG"); |
62e76326 | 1232 | /* yes we have to clear all these! */ |
dc56a9b1 | 1233 | call = NULL; |
1234 | commSetTimeout(fd, -1, call); | |
f61f0107 | 1235 | flags.do_next_read = 0; |
62e76326 | 1236 | |
dc56a9b1 | 1237 | comm_remove_close_handler(fd, closeHandler); |
1238 | closeHandler = NULL; | |
b6b6f466 | 1239 | fwd->unregister(fd); |
fc68f6b1 | 1240 | |
f165d2fb | 1241 | if (orig_request->flags.spoof_client_ip) |
cc192b50 | 1242 | client_addr = orig_request->client_addr; |
fc68f6b1 | 1243 | |
bd0723ad | 1244 | if (_peer) { |
1245 | if (_peer->options.originserver) | |
cc192b50 | 1246 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->GetHost(), client_addr); |
bd0723ad | 1247 | else |
fc68f6b1 | 1248 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL, client_addr); |
bd0723ad | 1249 | } else { |
cc192b50 | 1250 | fwd->pconnPush(fd, request->GetHost(), request->port, NULL, client_addr); |
bd0723ad | 1251 | } |
1252 | ||
62e76326 | 1253 | fd = -1; |
2afaba07 | 1254 | |
5f8252d2 | 1255 | serverComplete(); |
62e76326 | 1256 | return; |
1257 | ||
1258 | case COMPLETE_NONPERSISTENT_MSG: | |
bf8fe701 | 1259 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG"); |
5f8252d2 | 1260 | serverComplete(); |
62e76326 | 1261 | return; |
1262 | } | |
1263 | ||
5f8252d2 | 1264 | maybeReadVirginBody(); |
c4b7a5a9 | 1265 | } |
1266 | ||
1267 | void | |
5f8252d2 | 1268 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1269 | { |
7dc79973 | 1270 | int read_sz = replyBodySpace(readBuf->spaceSize()); |
2afaba07 | 1271 | |
5f8252d2 | 1272 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
fc68f6b1 | 1273 | " read up to " << read_sz << " bytes from FD " << fd); |
2afaba07 | 1274 | |
1275 | /* | |
1276 | * why <2? Because delayAwareRead() won't actually read if | |
1277 | * you ask it to read 1 byte. The delayed read request | |
1278 | * just gets re-queued until the client side drains, then | |
1279 | * the I/O thread hangs. Better to not register any read | |
1280 | * handler until we get a notification from someone that | |
1281 | * its okay to read again. | |
1282 | */ | |
53dbd8cb | 1283 | if (read_sz < 2) { |
1284 | if (flags.headers_parsed) | |
1285 | return; | |
1286 | else | |
1287 | read_sz = 1024; | |
1288 | } | |
2afaba07 | 1289 | |
f61f0107 | 1290 | if (flags.do_next_read) { |
dc56a9b1 | 1291 | flags.do_next_read = 0; |
1292 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
1293 | entry->delayAwareRead(fd, readBuf->space(read_sz), read_sz, | |
1294 | asyncCall(11, 5, "HttpStateData::readReply", | |
1295 | Dialer(this, &HttpStateData::readReply))); | |
528b2c61 | 1296 | } |
090089c4 | 1297 | } |
1298 | ||
2afaba07 | 1299 | /* |
1300 | * This will be called when request write is complete. | |
1301 | */ | |
d576a6a6 | 1302 | void |
dc56a9b1 | 1303 | HttpStateData::sendComplete(const CommIoCbParams &io) |
090089c4 | 1304 | { |
dc56a9b1 | 1305 | debugs(11, 5, "httpSendComplete: FD " << fd << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1306 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1307 | |
528b2c61 | 1308 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1309 | #endif |
62e76326 | 1310 | |
dc56a9b1 | 1311 | if (io.size > 0) { |
1312 | fd_bytes(fd, io.size, FD_WRITE); | |
1313 | kb_incr(&statCounter.server.all.kbytes_out, io.size); | |
1314 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
ee1679df | 1315 | } |
62e76326 | 1316 | |
dc56a9b1 | 1317 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1318 | return; |
1319 | ||
dc56a9b1 | 1320 | if (io.flag) { |
6cae5db1 | 1321 | ErrorState *err; |
dc56a9b1 | 1322 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
1323 | err->xerrno = io.xerrno; | |
1324 | fwd->fail(err); | |
62e76326 | 1325 | comm_close(fd); |
1326 | return; | |
090089c4 | 1327 | } |
72b63f06 | 1328 | |
2afaba07 | 1329 | /* |
1330 | * Set the read timeout here because it hasn't been set yet. | |
1331 | * We only set the read timeout after the request has been | |
1332 | * fully written to the server-side. If we start the timeout | |
1333 | * after connection establishment, then we are likely to hit | |
1334 | * the timeout for POST/PUT requests that have very large | |
1335 | * request bodies. | |
1336 | */ | |
dc56a9b1 | 1337 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
1338 | AsyncCall::Pointer timeoutCall = asyncCall(11, 5, "HttpStateData::httpTimeout", | |
1339 | TimeoutDialer(this,&HttpStateData::httpTimeout)); | |
2afaba07 | 1340 | |
dc56a9b1 | 1341 | commSetTimeout(fd, Config.Timeout.read, timeoutCall); |
1342 | ||
1343 | flags.request_sent = 1; | |
090089c4 | 1344 | } |
1345 | ||
5f8252d2 | 1346 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1347 | void |
5f8252d2 | 1348 | HttpStateData::closeServer() |
2afaba07 | 1349 | { |
5f8252d2 | 1350 | debugs(11,5, HERE << "closing HTTP server FD " << fd << " this " << this); |
fc68f6b1 | 1351 | |
2afaba07 | 1352 | if (fd >= 0) { |
b6b6f466 | 1353 | fwd->unregister(fd); |
dc56a9b1 | 1354 | comm_remove_close_handler(fd, closeHandler); |
1355 | closeHandler = NULL; | |
2afaba07 | 1356 | comm_close(fd); |
1357 | fd = -1; | |
1358 | } | |
5f8252d2 | 1359 | } |
2afaba07 | 1360 | |
5f8252d2 | 1361 | bool |
1362 | HttpStateData::doneWithServer() const | |
1363 | { | |
1364 | return fd < 0; | |
2afaba07 | 1365 | } |
1366 | ||
99edd1c3 | 1367 | /* |
1368 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1369 | * used by buildRequestPrefix() |
818c6c9e | 1370 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1371 | */ |
e1e72f06 | 1372 | void |
e5ee81f0 | 1373 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1374 | HttpRequest * orig_request, | |
1375 | StoreEntry * entry, | |
1376 | HttpHeader * hdr_out, | |
1377 | http_state_flags flags) | |
6bf8443a | 1378 | { |
99edd1c3 | 1379 | /* building buffer for complex strings */ |
5999b776 | 1380 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1381 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1382 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
99edd1c3 | 1383 | const HttpHeader *hdr_in = &orig_request->header; |
67c06f0d | 1384 | const HttpHeaderEntry *e = NULL; |
30abd221 | 1385 | String strFwd; |
99edd1c3 | 1386 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1387 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1388 | /* append our IMS header */ |
62e76326 | 1389 | |
fa3e249f | 1390 | if (request->lastmod > -1) |
a9925b40 | 1391 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1392 | |
528b2c61 | 1393 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1394 | ||
30abd221 | 1395 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1396 | |
a9925b40 | 1397 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1398 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1399 | |
43ae1d95 | 1400 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1401 | * into offset-length data, and this works around our inability to do so. |
1402 | */ | |
62e76326 | 1403 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1404 | /* don't cache the result */ | |
1405 | orig_request->flags.cachable = 0; | |
1406 | /* pretend it's not a range request */ | |
00d77d6b | 1407 | delete orig_request->range; |
62e76326 | 1408 | orig_request->range = NULL; |
1409 | orig_request->flags.range = 0; | |
1410 | } | |
528b2c61 | 1411 | |
99edd1c3 | 1412 | /* append Via */ |
736cb6aa | 1413 | if (Config.onoff.via) { |
30abd221 | 1414 | String strVia; |
a9925b40 | 1415 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1416 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1417 | orig_request->http_ver.major, | |
1418 | orig_request->http_ver.minor, ThisCache); | |
1419 | strListAdd(&strVia, bbuf, ','); | |
30abd221 | 1420 | hdr_out->putStr(HDR_VIA, strVia.buf()); |
1421 | strVia.clean(); | |
736cb6aa | 1422 | } |
62e76326 | 1423 | |
f41735ea | 1424 | #if USE_SQUID_ESI |
43ae1d95 | 1425 | { |
1426 | /* Append Surrogate-Capabilities */ | |
30abd221 | 1427 | String strSurrogate (hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
ec43ae0e | 1428 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1429 | Config.Accel.surrogate_id); |
1430 | strListAdd(&strSurrogate, bbuf, ','); | |
30abd221 | 1431 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); |
43ae1d95 | 1432 | } |
1433 | #endif | |
1434 | ||
a9925b40 | 1435 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); |
62e76326 | 1436 | |
67c06f0d AJ |
1437 | /** \pre Handle X-Forwarded-For */ |
1438 | if(strcmp(opt_forwarded_for, "delete") != 0) { | |
1439 | if(strcmp(opt_forwarded_for, "on") == 0) { | |
1440 | /** If set to ON - append client IP or 'unknown'. */ | |
1441 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1442 | if( orig_request->client_addr.IsNoAddr() ) | |
1443 | strListAdd(&strFwd, "unknown", ','); | |
1444 | else | |
1445 | strListAdd(&strFwd, orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); | |
1446 | } else if(strcmp(opt_forwarded_for, "off") == 0) { | |
1447 | /** If set to OFF - append 'unknown'. */ | |
1448 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1449 | strListAdd(&strFwd, "unknown", ','); | |
1450 | } else if(strcmp(opt_forwarded_for, "transparent") == 0) { | |
1451 | /** If set to TRANSPARENT - pass through unchanged. */ | |
1452 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1453 | } else if(strcmp(opt_forwarded_for, "truncate") == 0) { | |
1454 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ | |
1455 | if( orig_request->client_addr.IsNoAddr() ) | |
1456 | strFwd = "unknown"; | |
1457 | else | |
1458 | strFwd = orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); | |
1459 | } | |
1460 | if(strFwd.size() > 0) | |
1461 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.buf()); | |
cc192b50 | 1462 | } |
67c06f0d | 1463 | /** If set to DELETE - do not copy through. */ |
30abd221 | 1464 | strFwd.clean(); |
6bccf575 | 1465 | |
99edd1c3 | 1466 | /* append Host if not there already */ |
a9925b40 | 1467 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1468 | if (orig_request->peer_domain) { |
a9925b40 | 1469 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1470 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1471 | /* use port# only if not default */ | |
cc192b50 | 1472 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
62e76326 | 1473 | } else { |
1474 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1475 | orig_request->GetHost(), |
1476 | (int) orig_request->port); | |
62e76326 | 1477 | } |
6bf8443a | 1478 | } |
62e76326 | 1479 | |
c68e9c6b | 1480 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1481 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1482 | if (!request->flags.proxying && *request->login) { |
1483 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1484 | base64_encode(request->login)); | |
1485 | } | |
c68e9c6b | 1486 | } |
62e76326 | 1487 | |
c68e9c6b | 1488 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1489 | if (request->flags.proxying && orig_request->peer_login && |
a9925b40 | 1490 | !hdr_out->has(HDR_PROXY_AUTHORIZATION)) { |
62e76326 | 1491 | if (*orig_request->peer_login == '*') { |
1492 | /* Special mode, to pass the username to the upstream cache */ | |
1493 | char loginbuf[256]; | |
1494 | const char *username = "-"; | |
1495 | ||
a8bc2b9c | 1496 | if (orig_request->extacl_user.size()) |
30abd221 | 1497 | username = orig_request->extacl_user.buf(); |
a8bc2b9c | 1498 | else if (orig_request->auth_user_request) |
1499 | username = orig_request->auth_user_request->username(); | |
62e76326 | 1500 | |
1501 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1502 | ||
1503 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1504 | base64_encode(loginbuf)); | |
1505 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1506 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1507 | char loginbuf[256]; | |
30abd221 | 1508 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); |
abb929f0 | 1509 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", |
1510 | base64_encode(loginbuf)); | |
1511 | } | |
62e76326 | 1512 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1513 | /* Nothing to do */ | |
1514 | } else { | |
1515 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1516 | base64_encode(orig_request->peer_login)); | |
1517 | } | |
c68e9c6b | 1518 | } |
62e76326 | 1519 | |
be753325 | 1520 | /* append WWW-Authorization if configured for peer */ |
1521 | if (flags.originpeer && orig_request->peer_login && | |
a9925b40 | 1522 | !hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1523 | if (strcmp(orig_request->peer_login, "PASS") == 0) { |
1524 | /* No credentials to forward.. (should have been done above if available) */ | |
1525 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1526 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1527 | * (also applies to authentication provided by external acl) |
62e76326 | 1528 | */ |
a9925b40 | 1529 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
62e76326 | 1530 | |
1531 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
a9925b40 | 1532 | hdr_out->putStr(HDR_AUTHORIZATION, auth); |
abb929f0 | 1533 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1534 | char loginbuf[256]; | |
30abd221 | 1535 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); |
abb929f0 | 1536 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
1537 | base64_encode(loginbuf)); | |
62e76326 | 1538 | } |
1539 | } else if (*orig_request->peer_login == '*') { | |
1540 | /* Special mode, to pass the username to the upstream cache */ | |
1541 | char loginbuf[256]; | |
1542 | const char *username = "-"; | |
1543 | ||
1544 | if (orig_request->auth_user_request) | |
f5691f9c | 1545 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1546 | else if (orig_request->extacl_user.size()) |
30abd221 | 1547 | username = orig_request->extacl_user.buf(); |
62e76326 | 1548 | |
1549 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1550 | ||
1551 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1552 | base64_encode(loginbuf)); | |
1553 | } else { | |
1554 | /* Fixed login string */ | |
1555 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1556 | base64_encode(orig_request->peer_login)); | |
1557 | } | |
be753325 | 1558 | } |
62e76326 | 1559 | |
abb929f0 | 1560 | /* append Cache-Control, add max-age if not there already */ { |
a9925b40 | 1561 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1562 | |
1563 | if (!cc) | |
1564 | cc = httpHdrCcCreate(); | |
1565 | ||
1566 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1567 | const char *url = |
3900307b | 1568 | entry ? entry->url() : urlCanonical(orig_request); |
62e76326 | 1569 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1570 | ||
1571 | if (request->urlpath.size()) | |
30abd221 | 1572 | assert(strstr(url, request->urlpath.buf())); |
62e76326 | 1573 | } |
1574 | ||
ce2d6441 | 1575 | /* Set no-cache if determined needed but not found */ |
a9925b40 | 1576 | if (orig_request->flags.nocache && !hdr_in->has(HDR_PRAGMA)) |
ce2d6441 | 1577 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1578 | ||
1579 | /* Enforce sibling relations */ | |
62e76326 | 1580 | if (flags.only_if_cached) |
1581 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1582 | ||
a9925b40 | 1583 | hdr_out->putCc(cc); |
62e76326 | 1584 | |
1585 | httpHdrCcDestroy(cc); | |
6bf8443a | 1586 | } |
62e76326 | 1587 | |
99edd1c3 | 1588 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1589 | if (flags.keepalive) { |
62e76326 | 1590 | if (flags.proxying) { |
a9925b40 | 1591 | hdr_out->putStr(HDR_PROXY_CONNECTION, "keep-alive"); |
62e76326 | 1592 | } else { |
a9925b40 | 1593 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
62e76326 | 1594 | } |
603a02fd | 1595 | } |
62e76326 | 1596 | |
a7ad6e4e | 1597 | /* append Front-End-Https */ |
1598 | if (flags.front_end_https) { | |
62e76326 | 1599 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1600 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1601 | } |
1602 | ||
6bccf575 | 1603 | /* Now mangle the headers. */ |
4f56514c | 1604 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1605 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1606 | |
30abd221 | 1607 | strConnection.clean(); |
99edd1c3 | 1608 | } |
1609 | ||
528b2c61 | 1610 | void |
30abd221 | 1611 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1612 | { |
30abd221 | 1613 | debugs(11, 5, "httpBuildRequestHeader: " << e->name.buf() << ": " << e->value.buf()); |
62e76326 | 1614 | |
528b2c61 | 1615 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
30abd221 | 1616 | debugs(11, 2, "'" << e->name.buf() << "' header denied by anonymize_headers configuration"); |
62e76326 | 1617 | return; |
528b2c61 | 1618 | } |
62e76326 | 1619 | |
528b2c61 | 1620 | switch (e->id) { |
62e76326 | 1621 | |
be753325 | 1622 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1623 | /* Only pass on proxy authentication to peers for which |
1624 | * authentication forwarding is explicitly enabled | |
1625 | */ | |
1626 | ||
1627 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1628 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1629 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1630 | hdr_out->addEntry(e->clone()); |
62e76326 | 1631 | } |
1632 | ||
1633 | break; | |
1634 | ||
be753325 | 1635 | case HDR_AUTHORIZATION: |
62e76326 | 1636 | /* Pass on WWW authentication */ |
1637 | ||
1638 | if (!flags.originpeer) { | |
eede25e7 | 1639 | hdr_out->addEntry(e->clone()); |
62e76326 | 1640 | } else { |
1641 | /* In accelerators, only forward authentication if enabled | |
1642 | * (see also below for proxy->server authentication) | |
1643 | */ | |
1644 | ||
abb929f0 | 1645 | if (orig_request->peer_login && |
1646 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1647 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1648 | hdr_out->addEntry(e->clone()); |
62e76326 | 1649 | } |
1650 | } | |
1651 | ||
1652 | break; | |
1653 | ||
be753325 | 1654 | case HDR_HOST: |
62e76326 | 1655 | /* |
b883b594 | 1656 | * Normally Squid rewrites the Host: header. |
1657 | * However, there is one case when we don't: If the URL | |
62e76326 | 1658 | * went through our redirector and the admin configured |
1659 | * 'redir_rewrites_host' to be off. | |
1660 | */ | |
1661 | ||
b883b594 | 1662 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1663 | hdr_out->addEntry(e->clone()); |
b883b594 | 1664 | else { |
1665 | /* use port# only if not default */ | |
1666 | ||
1667 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
cc192b50 | 1668 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
b883b594 | 1669 | } else { |
1670 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1671 | orig_request->GetHost(), |
1672 | (int) orig_request->port); | |
b883b594 | 1673 | } |
1674 | } | |
62e76326 | 1675 | |
1676 | break; | |
1677 | ||
be753325 | 1678 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1679 | /* append unless we added our own; |
1680 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1681 | |
a9925b40 | 1682 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1683 | hdr_out->addEntry(e->clone()); |
62e76326 | 1684 | |
1685 | break; | |
1686 | ||
be753325 | 1687 | case HDR_MAX_FORWARDS: |
62e76326 | 1688 | if (orig_request->method == METHOD_TRACE) { |
eede25e7 | 1689 | const int hops = e->getInt(); |
62e76326 | 1690 | |
1691 | if (hops > 0) | |
a9925b40 | 1692 | hdr_out->putInt(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1693 | } |
1694 | ||
1695 | break; | |
1696 | ||
be753325 | 1697 | case HDR_VIA: |
62e76326 | 1698 | /* If Via is disabled then forward any received header as-is */ |
1699 | ||
1700 | if (!Config.onoff.via) | |
eede25e7 | 1701 | hdr_out->addEntry(e->clone()); |
62e76326 | 1702 | |
1703 | break; | |
1704 | ||
be753325 | 1705 | case HDR_RANGE: |
62e76326 | 1706 | |
be753325 | 1707 | case HDR_IF_RANGE: |
62e76326 | 1708 | |
be753325 | 1709 | case HDR_REQUEST_RANGE: |
62e76326 | 1710 | if (!we_do_ranges) |
eede25e7 | 1711 | hdr_out->addEntry(e->clone()); |
62e76326 | 1712 | |
1713 | break; | |
1714 | ||
be753325 | 1715 | case HDR_PROXY_CONNECTION: |
62e76326 | 1716 | |
be753325 | 1717 | case HDR_CONNECTION: |
62e76326 | 1718 | |
be753325 | 1719 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1720 | |
be753325 | 1721 | case HDR_CACHE_CONTROL: |
62e76326 | 1722 | /* append these after the loop if needed */ |
1723 | break; | |
1724 | ||
be753325 | 1725 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1726 | if (!flags.front_end_https) |
eede25e7 | 1727 | hdr_out->addEntry(e->clone()); |
62e76326 | 1728 | |
1729 | break; | |
1730 | ||
be753325 | 1731 | default: |
62e76326 | 1732 | /* pass on all other header fields */ |
eede25e7 | 1733 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1734 | } |
1735 | } | |
1736 | ||
e5ee81f0 | 1737 | bool |
1738 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1739 | { |
e5ee81f0 | 1740 | bool result = true; |
62e76326 | 1741 | /* decide if we want to do Ranges ourselves |
1742 | * and fetch the whole object now) | |
1743 | * We want to handle Ranges ourselves iff | |
1744 | * - we can actually parse client Range specs | |
1745 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1746 | * - reply will be cachable | |
1747 | * (If the reply will be uncachable we have to throw it away after | |
1748 | * serving this request, so it is better to forward ranges to | |
1749 | * the server and fetch only the requested content) | |
1750 | */ | |
1751 | ||
1752 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1753 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1754 | result = false; |
62e76326 | 1755 | |
bf8fe701 | 1756 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
1757 | orig_request->range << ", cachable: " << | |
1758 | orig_request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 1759 | |
1760 | return result; | |
528b2c61 | 1761 | } |
1762 | ||
62e76326 | 1763 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1764 | * return the length of the prefix */ |
9bc73deb | 1765 | mb_size_t |
e5ee81f0 | 1766 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1767 | HttpRequest * orig_request, | |
1768 | StoreEntry * entry, | |
1769 | MemBuf * mb, | |
1770 | http_state_flags flags) | |
99edd1c3 | 1771 | { |
1772 | const int offset = mb->size; | |
450e0c10 | 1773 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1774 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
60745f24 | 1775 | RequestMethodStr(request->method), |
30abd221 | 1776 | request->urlpath.size() ? request->urlpath.buf() : "/", |
2fe7eff9 | 1777 | httpver.major,httpver.minor); |
99edd1c3 | 1778 | /* build and pack headers */ |
1779 | { | |
75faaa7a | 1780 | HttpHeader hdr(hoRequest); |
62e76326 | 1781 | Packer p; |
1782 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1783 | packerToMemInit(&p, mb); | |
a9925b40 | 1784 | hdr.packInto(&p); |
519e0948 | 1785 | hdr.clean(); |
62e76326 | 1786 | packerClean(&p); |
9d9d144b | 1787 | } |
99edd1c3 | 1788 | /* append header terminator */ |
2fe7eff9 | 1789 | mb->append(crlf, 2); |
99edd1c3 | 1790 | return mb->size - offset; |
6bf8443a | 1791 | } |
62e76326 | 1792 | |
090089c4 | 1793 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 1794 | bool |
2bb867b5 | 1795 | HttpStateData::sendRequest() |
090089c4 | 1796 | { |
99edd1c3 | 1797 | MemBuf mb; |
090089c4 | 1798 | |
bf8fe701 | 1799 | debugs(11, 5, "httpSendRequest: FD " << fd << ", request " << request << ", this " << this << "."); |
dc56a9b1 | 1800 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
1801 | AsyncCall::Pointer timeoutCall = asyncCall(11, 5, "HttpStateData::httpTimeout", | |
1802 | TimeoutDialer(this,&HttpStateData::httpTimeout)); | |
1803 | commSetTimeout(fd, Config.Timeout.lifetime, timeoutCall); | |
2bb867b5 | 1804 | flags.do_next_read = 1; |
5f8252d2 | 1805 | maybeReadVirginBody(); |
1806 | ||
1807 | if (orig_request->body_pipe != NULL) { | |
123ec4de | 1808 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 1809 | return false; |
dc56a9b1 | 1810 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
1811 | Dialer dialer(this, &HttpStateData::sentRequestBody); | |
1812 | requestSender = asyncCall(11,5, "HttpStateData::sentRequestBody", dialer); | |
5f8252d2 | 1813 | } else { |
1814 | assert(!requestBodySource); | |
dc56a9b1 | 1815 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
1816 | Dialer dialer(this, &HttpStateData::sendComplete); | |
1817 | requestSender = asyncCall(11,5, "HttpStateData::SendComplete", dialer); | |
5f8252d2 | 1818 | } |
54220df8 | 1819 | |
2bb867b5 | 1820 | if (_peer != NULL) { |
1821 | if (_peer->options.originserver) { | |
1822 | flags.proxying = 0; | |
1823 | flags.originpeer = 1; | |
62e76326 | 1824 | } else { |
2bb867b5 | 1825 | flags.proxying = 1; |
1826 | flags.originpeer = 0; | |
62e76326 | 1827 | } |
be753325 | 1828 | } else { |
2bb867b5 | 1829 | flags.proxying = 0; |
1830 | flags.originpeer = 0; | |
be753325 | 1831 | } |
62e76326 | 1832 | |
efb9218c | 1833 | /* |
99edd1c3 | 1834 | * Is keep-alive okay for all request methods? |
efb9218c | 1835 | */ |
efd900cb | 1836 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1837 | flags.keepalive = 0; |
1838 | else if (_peer == NULL) | |
1839 | flags.keepalive = 1; | |
1840 | else if (_peer->stats.n_keepalives_sent < 10) | |
1841 | flags.keepalive = 1; | |
1842 | else if ((double) _peer->stats.n_keepalives_recv / | |
1843 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1844 | flags.keepalive = 1; | |
1845 | ||
1846 | if (_peer) { | |
1847 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1848 | !_peer->options.allow_miss) | |
1849 | flags.only_if_cached = 1; | |
1850 | ||
1851 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1852 | } |
62e76326 | 1853 | |
2fe7eff9 | 1854 | mb.init(); |
e5ee81f0 | 1855 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
bf8fe701 | 1856 | debugs(11, 6, "httpSendRequest: FD " << fd << ":\n" << mb.buf); |
dc56a9b1 | 1857 | comm_write_mbuf(fd, &mb, requestSender); |
5f8252d2 | 1858 | |
1859 | return true; | |
090089c4 | 1860 | } |
b6a2f15e | 1861 | |
910169e5 | 1862 | void |
b6b6f466 | 1863 | httpStart(FwdState *fwd) |
603a02fd | 1864 | { |
60745f24 | 1865 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
a3d50c30 | 1866 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1867 | |
5f8252d2 | 1868 | if (!httpState->sendRequest()) { |
bf8fe701 | 1869 | debugs(11, 3, "httpStart: aborted"); |
5f8252d2 | 1870 | delete httpState; |
1871 | return; | |
1872 | } | |
62e76326 | 1873 | |
5f8252d2 | 1874 | statCounter.server.all.requests++; |
83704487 | 1875 | statCounter.server.http.requests++; |
62e76326 | 1876 | |
b6a2f15e | 1877 | /* |
1878 | * We used to set the read timeout here, but not any more. | |
1879 | * Now its set in httpSendComplete() after the full request, | |
1880 | * including request body, has been written to the server. | |
1881 | */ | |
090089c4 | 1882 | } |
1883 | ||
2bb867b5 | 1884 | void |
5f8252d2 | 1885 | HttpStateData::doneSendingRequestBody() |
2bb867b5 | 1886 | { |
4fb35c3c | 1887 | ACLChecklist ch; |
5f8252d2 | 1888 | debugs(11,5, HERE << "doneSendingRequestBody: FD " << fd); |
6dd9f4bd | 1889 | ch.request = HTTPMSGLOCK(request); |
506768d9 | 1890 | |
1891 | if (Config.accessList.brokenPosts) | |
1892 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1893 | |
108d65b2 | 1894 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1895 | ||
94439e4e | 1896 | if (!Config.accessList.brokenPosts) { |
bf8fe701 | 1897 | debugs(11, 5, "doneSendingRequestBody: No brokenPosts list"); |
dc56a9b1 | 1898 | CommIoCbParams io(NULL); |
1899 | io.fd=fd; | |
1900 | io.flag=COMM_OK; | |
1901 | sendComplete(io); | |
b448c119 | 1902 | } else if (!ch.fastCheck()) { |
bf8fe701 | 1903 | debugs(11, 5, "doneSendingRequestBody: didn't match brokenPosts"); |
dc56a9b1 | 1904 | CommIoCbParams io(NULL); |
1905 | io.fd=fd; | |
1906 | io.flag=COMM_OK; | |
1907 | sendComplete(io); | |
94439e4e | 1908 | } else { |
bf8fe701 | 1909 | debugs(11, 2, "doneSendingRequestBody: matched brokenPosts"); |
dc56a9b1 | 1910 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
1911 | Dialer dialer(this, &HttpStateData::sendComplete); | |
1912 | AsyncCall::Pointer call= asyncCall(11,5, "HttpStateData::SendComplete", dialer); | |
1913 | comm_write(fd, "\r\n", 2, call); | |
54220df8 | 1914 | } |
94439e4e | 1915 | } |
1916 | ||
5f8252d2 | 1917 | // more origin request body data is available |
2bb867b5 | 1918 | void |
5f8252d2 | 1919 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 1920 | { |
2bb867b5 | 1921 | if (eof || fd < 0) { |
5f8252d2 | 1922 | // XXX: we should check this condition in other callbacks then! |
1923 | // TODO: Check whether this can actually happen: We should unsubscribe | |
1924 | // as a body consumer when the above condition(s) are detected. | |
2bb867b5 | 1925 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 1926 | return; |
1927 | } | |
62e76326 | 1928 | |
5f8252d2 | 1929 | assert(requestBodySource != NULL); |
fc68f6b1 | 1930 | |
5f8252d2 | 1931 | if (requestBodySource->buf().hasContent()) { |
1932 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 1933 | |
2bb867b5 | 1934 | if (flags.headers_parsed && !flags.abuse_detected) { |
1935 | flags.abuse_detected = 1; | |
cc192b50 | 1936 | debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << orig_request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 1937 | |
585ab260 | 1938 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 1939 | comm_close(fd); |
21b92762 | 1940 | return; |
1941 | } | |
1942 | } | |
b6a2f15e | 1943 | } |
5f8252d2 | 1944 | |
1945 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 1946 | } |
1947 | ||
5f8252d2 | 1948 | // premature end of the request body |
2bb867b5 | 1949 | void |
5f8252d2 | 1950 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 1951 | { |
5f8252d2 | 1952 | ServerStateData::handleRequestBodyProducerAborted(); |
1953 | // XXX: SendComplete(COMM_ERR_CLOSING) does little. Is it enough? | |
dc56a9b1 | 1954 | CommIoCbParams io(NULL); |
1955 | io.fd=fd; | |
1956 | io.flag=COMM_ERR_CLOSING; | |
1957 | sendComplete(io); | |
2bb867b5 | 1958 | } |
1959 | ||
5f8252d2 | 1960 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 1961 | void |
dc56a9b1 | 1962 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 1963 | { |
dc56a9b1 | 1964 | if (io.size > 0) |
1965 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 1966 | |
dc56a9b1 | 1967 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 1968 | } |
3b299123 | 1969 | |
5f8252d2 | 1970 | // Quickly abort the transaction |
1971 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
1972 | // including canceling close handlers | |
1973 | void | |
1974 | HttpStateData::abortTransaction(const char *reason) | |
1975 | { | |
1976 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
1977 | "; FD " << fd << ", this " << this); | |
fc68f6b1 | 1978 | |
3e8c047e | 1979 | if (fd >= 0) { |
62e76326 | 1980 | comm_close(fd); |
3e8c047e | 1981 | return; |
c23f0c74 | 1982 | } |
3e8c047e | 1983 | |
1984 | fwd->handleUnregisteredServerEnd(); | |
dc56a9b1 | 1985 | deleteThis("HttpStateData::abortTransaction"); |
54220df8 | 1986 | } |
ccf44862 | 1987 | |
073ba374 | 1988 | #if DEAD_CODE |
ccf44862 | 1989 | void |
450e0c10 | 1990 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1991 | { |
1992 | version->major = major; | |
1993 | version->minor = minor; | |
ccf44862 | 1994 | } |
073ba374 | 1995 | #endif |
2afaba07 | 1996 | |
7c4e4e7f | 1997 | HttpRequest * |
1998 | HttpStateData::originalRequest() | |
2afaba07 | 1999 | { |
7c4e4e7f | 2000 | return orig_request; |
2afaba07 | 2001 | } |