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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 | } |
f9cece6e | 293 | } |
294 | ||
43ae1d95 | 295 | void |
296 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
297 | { | |
f41735ea | 298 | #if USE_SQUID_ESI |
43ae1d95 | 299 | |
300 | if (request->flags.accelerated && reply->surrogate_control) { | |
301 | HttpHdrScTarget *sctusable = | |
302 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
303 | Config.Accel.surrogate_id); | |
304 | ||
305 | if (sctusable) { | |
306 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
307 | (Config.onoff.surrogate_is_remote | |
308 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
309 | surrogateNoStore = true; | |
5ed72359 | 310 | entry->makePrivate(); |
43ae1d95 | 311 | } |
312 | ||
313 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
314 | * accelerated request or not... | |
315 | * Still, this is an abtraction breach. - RC | |
316 | */ | |
317 | if (sctusable->max_age != -1) { | |
318 | if (sctusable->max_age < sctusable->max_stale) | |
319 | reply->expires = reply->date + sctusable->max_age; | |
320 | else | |
321 | reply->expires = reply->date + sctusable->max_stale; | |
322 | ||
323 | /* And update the timestamps */ | |
3900307b | 324 | entry->timestampsSet(); |
43ae1d95 | 325 | } |
326 | ||
327 | /* We ignore cache-control directives as per the Surrogate specification */ | |
328 | ignoreCacheControl = true; | |
329 | ||
330 | httpHdrScTargetDestroy(sctusable); | |
331 | } | |
332 | } | |
333 | ||
334 | #endif | |
335 | } | |
336 | ||
924f73bc | 337 | int |
338 | HttpStateData::cacheableReply() | |
c54e9052 | 339 | { |
585ab260 | 340 | HttpReply const *rep = finalReply(); |
528b2c61 | 341 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 342 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 343 | const char *v; |
38f9c547 | 344 | #if HTTP_VIOLATIONS |
62e76326 | 345 | |
38f9c547 | 346 | const refresh_t *R = NULL; |
b6445726 | 347 | |
346be6ad | 348 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 349 | * and then checks if the specified flag is set. The main purpose |
350 | * of this is to simplify the refresh pattern lookup and HTTP_VIOLATIONS | |
351 | * condition | |
352 | */ | |
353 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 354 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
355 | (R && R->flags.flag)) | |
b445957e | 356 | #else |
357 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 358 | #endif |
43ae1d95 | 359 | |
38f9c547 | 360 | if (surrogateNoStore) |
62e76326 | 361 | return 0; |
362 | ||
924f73bc | 363 | if (!ignoreCacheControl) { |
38f9c547 | 364 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 365 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 366 | return 0; |
367 | } | |
368 | ||
369 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 370 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 371 | return 0; |
372 | } | |
373 | ||
374 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 375 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 376 | return 0; |
377 | } | |
43ae1d95 | 378 | } |
379 | ||
924f73bc | 380 | if (request->flags.auth) { |
62e76326 | 381 | /* |
382 | * Responses to requests with authorization may be cached | |
383 | * only if a Cache-Control: public reply header is present. | |
384 | * RFC 2068, sec 14.9.4 | |
385 | */ | |
386 | ||
38f9c547 | 387 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 388 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 389 | return 0; |
390 | } | |
a6dfe2d9 | 391 | } |
62e76326 | 392 | |
c68e9c6b | 393 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
394 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 395 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 396 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 397 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 398 | s.clean(); |
62e76326 | 399 | |
38f9c547 | 400 | if (no_cache) { |
b6445726 | 401 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 402 | return 0; |
403 | } | |
c68e9c6b | 404 | } |
62e76326 | 405 | |
c68e9c6b | 406 | /* |
407 | * The "multipart/x-mixed-replace" content type is used for | |
408 | * continuous push replies. These are generally dynamic and | |
409 | * probably should not be cachable | |
410 | */ | |
a9925b40 | 411 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 412 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
413 | return 0; | |
414 | ||
585ab260 | 415 | switch (rep->sline.status) { |
62e76326 | 416 | /* Responses that are cacheable */ |
417 | ||
19a04dac | 418 | case HTTP_OK: |
62e76326 | 419 | |
19a04dac | 420 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 421 | |
19a04dac | 422 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 423 | |
19a04dac | 424 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 425 | |
19a04dac | 426 | case HTTP_GONE: |
62e76326 | 427 | /* |
428 | * Don't cache objects that need to be refreshed on next request, | |
429 | * unless we know how to refresh it. | |
430 | */ | |
431 | ||
1b5358c3 | 432 | if (!refreshIsCachable(entry)) { |
bf8fe701 | 433 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 434 | return 0; |
fc68f6b1 | 435 | } |
62e76326 | 436 | |
437 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
438 | /* check that is it enough to check headers @?@ */ | |
439 | if (rep->date > -1) | |
440 | return 1; | |
441 | else if (rep->last_modified > -1) | |
442 | return 1; | |
924f73bc | 443 | else if (!_peer) |
62e76326 | 444 | return 1; |
445 | ||
446 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
447 | else if (rep->expires > -1) | |
448 | return 1; | |
449 | else | |
450 | return 0; | |
451 | ||
452 | /* NOTREACHED */ | |
453 | break; | |
454 | ||
455 | /* Responses that only are cacheable if the server says so */ | |
456 | ||
19a04dac | 457 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 458 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 459 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 460 | return 1; |
461 | else | |
462 | return 0; | |
463 | ||
464 | /* NOTREACHED */ | |
465 | break; | |
466 | ||
467 | /* Errors can be negatively cached */ | |
468 | ||
19a04dac | 469 | case HTTP_NO_CONTENT: |
62e76326 | 470 | |
19a04dac | 471 | case HTTP_USE_PROXY: |
62e76326 | 472 | |
19a04dac | 473 | case HTTP_BAD_REQUEST: |
62e76326 | 474 | |
19a04dac | 475 | case HTTP_FORBIDDEN: |
62e76326 | 476 | |
19a04dac | 477 | case HTTP_NOT_FOUND: |
62e76326 | 478 | |
19a04dac | 479 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 480 | |
19a04dac | 481 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 482 | |
19a04dac | 483 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 484 | |
19a04dac | 485 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_BAD_GATEWAY: |
62e76326 | 488 | |
19a04dac | 489 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 490 | |
19a04dac | 491 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 492 | return -1; |
493 | ||
494 | /* NOTREACHED */ | |
495 | break; | |
496 | ||
497 | /* Some responses can never be cached */ | |
498 | ||
0cdcddb9 | 499 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 500 | |
19a04dac | 501 | case HTTP_SEE_OTHER: |
62e76326 | 502 | |
19a04dac | 503 | case HTTP_NOT_MODIFIED: |
62e76326 | 504 | |
19a04dac | 505 | case HTTP_UNAUTHORIZED: |
62e76326 | 506 | |
19a04dac | 507 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 508 | |
0cdcddb9 | 509 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 510 | |
511 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 512 | |
513 | case HTTP_PAYMENT_REQUIRED: | |
514 | case HTTP_NOT_ACCEPTABLE: | |
515 | case HTTP_REQUEST_TIMEOUT: | |
516 | case HTTP_CONFLICT: | |
517 | case HTTP_LENGTH_REQUIRED: | |
518 | case HTTP_PRECONDITION_FAILED: | |
519 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
520 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
521 | case HTTP_UNPROCESSABLE_ENTITY: | |
522 | case HTTP_LOCKED: | |
523 | case HTTP_FAILED_DEPENDENCY: | |
524 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 525 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
526 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 527 | |
62e76326 | 528 | return 0; |
529 | ||
c54e9052 | 530 | default: /* Unknown status code */ |
585ab260 | 531 | debugs (11, 0, HERE << "HttpStateData::cacheableReply: unexpected http status code " << rep->sline.status); |
62e76326 | 532 | |
533 | return 0; | |
534 | ||
535 | /* NOTREACHED */ | |
536 | break; | |
c54e9052 | 537 | } |
62e76326 | 538 | |
79d39a72 | 539 | /* NOTREACHED */ |
c54e9052 | 540 | } |
090089c4 | 541 | |
f66a9ef4 | 542 | /* |
543 | * For Vary, store the relevant request headers as | |
544 | * virtual headers in the reply | |
545 | * Returns false if the variance cannot be stored | |
546 | */ | |
547 | const char * | |
190154cf | 548 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 549 | { |
30abd221 | 550 | String vary, hdr; |
f66a9ef4 | 551 | const char *pos = NULL; |
552 | const char *item; | |
553 | const char *value; | |
554 | int ilen; | |
30abd221 | 555 | static String vstr; |
f66a9ef4 | 556 | |
30abd221 | 557 | vstr.clean(); |
a9925b40 | 558 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 559 | |
f66a9ef4 | 560 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 561 | char *name = (char *)xmalloc(ilen + 1); |
562 | xstrncpy(name, item, ilen + 1); | |
563 | Tolower(name); | |
9776e3cc | 564 | |
565 | if (strcmp(name, "*") == 0) { | |
566 | /* Can not handle "Vary: *" withtout ETag support */ | |
567 | safe_free(name); | |
30abd221 | 568 | vstr.clean(); |
9776e3cc | 569 | break; |
570 | } | |
571 | ||
62e76326 | 572 | strListAdd(&vstr, name, ','); |
a9925b40 | 573 | hdr = request->header.getByName(name); |
62e76326 | 574 | safe_free(name); |
30abd221 | 575 | value = hdr.buf(); |
62e76326 | 576 | |
577 | if (value) { | |
578 | value = rfc1738_escape_part(value); | |
579 | vstr.append("=\"", 2); | |
580 | vstr.append(value); | |
581 | vstr.append("\"", 1); | |
582 | } | |
583 | ||
30abd221 | 584 | hdr.clean(); |
f66a9ef4 | 585 | } |
62e76326 | 586 | |
30abd221 | 587 | vary.clean(); |
f66a9ef4 | 588 | #if X_ACCELERATOR_VARY |
62e76326 | 589 | |
aa38be4a | 590 | pos = NULL; |
a9925b40 | 591 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 592 | |
f66a9ef4 | 593 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 594 | char *name = (char *)xmalloc(ilen + 1); |
595 | xstrncpy(name, item, ilen + 1); | |
596 | Tolower(name); | |
597 | strListAdd(&vstr, name, ','); | |
a9925b40 | 598 | hdr = request->header.getByName(name); |
62e76326 | 599 | safe_free(name); |
30abd221 | 600 | value = hdr.buf(); |
62e76326 | 601 | |
602 | if (value) { | |
603 | value = rfc1738_escape_part(value); | |
604 | vstr.append("=\"", 2); | |
605 | vstr.append(value); | |
606 | vstr.append("\"", 1); | |
607 | } | |
608 | ||
30abd221 | 609 | hdr.clean(); |
f66a9ef4 | 610 | } |
62e76326 | 611 | |
30abd221 | 612 | vary.clean(); |
f66a9ef4 | 613 | #endif |
62e76326 | 614 | |
30abd221 | 615 | debugs(11, 3, "httpMakeVaryMark: " << vstr.buf()); |
616 | return vstr.buf(); | |
f66a9ef4 | 617 | } |
618 | ||
2afaba07 | 619 | void |
620 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
621 | { | |
622 | if (flags.keepalive) | |
623 | if (_peer) | |
624 | _peer->stats.n_keepalives_sent++; | |
625 | ||
626 | if (reply->keep_alive) { | |
627 | if (_peer) | |
628 | _peer->stats.n_keepalives_recv++; | |
629 | ||
630 | if (Config.onoff.detect_broken_server_pconns && reply->bodySize(request->method) == -1) { | |
bf8fe701 | 631 | debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
632 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); | |
2afaba07 | 633 | flags.keepalive_broken = 1; |
634 | } | |
635 | } | |
636 | } | |
637 | ||
638 | void | |
639 | HttpStateData::checkDateSkew(HttpReply *reply) | |
640 | { | |
641 | if (reply->date > -1 && !_peer) { | |
642 | int skew = abs((int)(reply->date - squid_curtime)); | |
643 | ||
644 | if (skew > 86400) | |
cc192b50 | 645 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 646 | } |
647 | } | |
648 | ||
073ba374 | 649 | /** |
4eb368f9 | 650 | * This creates the error page itself.. its likely |
651 | * that the forward ported reply header max size patch | |
652 | * generates non http conformant error pages - in which | |
653 | * case the errors where should be 'BAD_GATEWAY' etc | |
654 | */ | |
b8d8561b | 655 | void |
2afaba07 | 656 | HttpStateData::processReplyHeader() |
f5558c95 | 657 | { |
073ba374 | 658 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
82384411 | 659 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
bf8fe701 | 660 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 661 | |
1a98175f | 662 | assert(!flags.headers_parsed); |
62e76326 | 663 | |
2afaba07 | 664 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 665 | |
585ab260 | 666 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 667 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 668 | |
793c0ba9 | 669 | if(!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0){ |
670 | MemBuf *mb; | |
671 | HttpReply *tmprep = new HttpReply; | |
672 | tmprep->sline.version = HttpVersion(1, 0); | |
673 | tmprep->sline.status = HTTP_OK; | |
674 | tmprep->header.putTime(HDR_DATE, squid_curtime); | |
675 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); | |
676 | mb = tmprep->pack(); | |
677 | newrep->parse(mb, eof, &error); | |
678 | delete tmprep; | |
4eb368f9 | 679 | } |
793c0ba9 | 680 | else{ |
681 | if (!parsed && error > 0) { // unrecoverable parsing error | |
682 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
683 | flags.headers_parsed = 1; | |
ba82c452 | 684 | newrep->sline.version = HttpVersion(1, 0); |
685 | newrep->sline.status = error; | |
585ab260 | 686 | HttpReply *vrep = setVirginReply(newrep); |
687 | entry->replaceHttpReply(vrep); | |
793c0ba9 | 688 | ctx_exit(ctx); |
689 | return; | |
690 | } | |
073ba374 | 691 | |
793c0ba9 | 692 | if (!parsed) { // need more data |
693 | assert(!error); | |
694 | assert(!eof); | |
695 | delete newrep; | |
696 | ctx_exit(ctx); | |
697 | return; | |
698 | } | |
073ba374 | 699 | |
793c0ba9 | 700 | debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------"); |
073ba374 | 701 | |
793c0ba9 | 702 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); |
703 | readBuf->consume(header_bytes_read); | |
f5558c95 | 704 | } |
62e76326 | 705 | |
af0bb8e5 | 706 | flags.chunked = 0; |
707 | if (newrep->header.hasListMember(HDR_TRANSFER_ENCODING, "chunked", ',')) { | |
708 | flags.chunked = 1; | |
709 | httpChunkDecoder = new ChunkedCodingParser; | |
710 | } | |
711 | ||
585ab260 | 712 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 713 | flags.headers_parsed = 1; |
714 | ||
585ab260 | 715 | keepaliveAccounting(vrep); |
47ac2ebe | 716 | |
585ab260 | 717 | checkDateSkew(vrep); |
47ac2ebe | 718 | |
585ab260 | 719 | processSurrogateControl (vrep); |
528b2c61 | 720 | |
073ba374 | 721 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 722 | * Parse the header and remove all referenced headers |
723 | */ | |
724 | ||
2afaba07 | 725 | ctx_exit(ctx); |
7dc79973 | 726 | |
2afaba07 | 727 | } |
728 | ||
5f8252d2 | 729 | // Called when we parsed (and possibly adapted) the headers but |
730 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 731 | void |
732 | HttpStateData::haveParsedReplyHeaders() | |
733 | { | |
c1520b67 AJ |
734 | ServerStateData::haveParsedReplyHeaders(); |
735 | ||
2afaba07 | 736 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 737 | HttpReply *rep = finalReply(); |
2afaba07 | 738 | |
585ab260 | 739 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
740 | rep->content_range) | |
741 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 742 | |
3900307b | 743 | entry->timestampsSet(); |
62e76326 | 744 | |
9bc73deb | 745 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 746 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 747 | |
9bc73deb | 748 | if (neighbors_do_private_keys) |
585ab260 | 749 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 750 | |
585ab260 | 751 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 752 | #if X_ACCELERATOR_VARY |
585ab260 | 753 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 754 | #endif |
4b44c907 | 755 | ) { |
585ab260 | 756 | const char *vary = httpMakeVaryMark(orig_request, rep); |
4b44c907 | 757 | |
758 | if (!vary) { | |
5ed72359 | 759 | entry->makePrivate(); |
4b44c907 | 760 | goto no_cache; |
761 | ||
62e76326 | 762 | } |
763 | ||
4b44c907 | 764 | entry->mem_obj->vary_headers = xstrdup(vary); |
765 | } | |
766 | ||
2afaba07 | 767 | #if WIP_FWD_LOG |
768 | fwdStatus(fwd, s); | |
769 | ||
770 | #endif | |
771 | /* | |
772 | * If its not a reply that we will re-forward, then | |
773 | * allow the client to get it. | |
774 | */ | |
585ab260 | 775 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 776 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
777 | ||
4b44c907 | 778 | switch (cacheableReply()) { |
779 | ||
780 | case 1: | |
5ed72359 | 781 | entry->makePublic(); |
62e76326 | 782 | break; |
783 | ||
9bc73deb | 784 | case 0: |
5ed72359 | 785 | entry->makePrivate(); |
62e76326 | 786 | break; |
787 | ||
9bc73deb | 788 | case -1: |
4b44c907 | 789 | |
ac9cc053 | 790 | #if HTTP_VIOLATIONS |
4b44c907 | 791 | if (Config.negativeTtl > 0) |
5ed72359 | 792 | entry->cacheNegatively(); |
4b44c907 | 793 | else |
ac9cc053 | 794 | #endif |
5ed72359 | 795 | entry->makePrivate(); |
4b44c907 | 796 | |
62e76326 | 797 | break; |
798 | ||
9bc73deb | 799 | default: |
62e76326 | 800 | assert(0); |
4b44c907 | 801 | |
62e76326 | 802 | break; |
9bc73deb | 803 | } |
62e76326 | 804 | |
4b44c907 | 805 | no_cache: |
806 | ||
585ab260 | 807 | if (!ignoreCacheControl && rep->cache_control) { |
808 | if (EBIT_TEST(rep->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 809 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
585ab260 | 810 | else if (EBIT_TEST(rep->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 811 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 812 | } |
62e76326 | 813 | |
c3609322 | 814 | #if HEADERS_LOG |
585ab260 | 815 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 816 | |
c3609322 | 817 | #endif |
5f8252d2 | 818 | |
819 | ctx_exit(ctx); | |
f5558c95 | 820 | } |
821 | ||
528b2c61 | 822 | HttpStateData::ConnectionStatus |
823 | HttpStateData::statusIfComplete() const | |
603a02fd | 824 | { |
585ab260 | 825 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
826 | /** \par |
827 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 828 | |
2afaba07 | 829 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 830 | return COMPLETE_NONPERSISTENT_MSG; |
831 | ||
073ba374 AJ |
832 | /** \par |
833 | * If we didn't send a keep-alive request header, then this | |
978e455f | 834 | * can not be a persistent connection. |
835 | */ | |
528b2c61 | 836 | if (!flags.keepalive) |
62e76326 | 837 | return COMPLETE_NONPERSISTENT_MSG; |
838 | ||
073ba374 | 839 | /** \par |
72b63f06 | 840 | * If we haven't sent the whole request then this can not be a persistent |
841 | * connection. | |
842 | */ | |
843 | if (!flags.request_sent) { | |
60745f24 | 844 | debugs(11, 1, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(orig_request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 845 | return COMPLETE_NONPERSISTENT_MSG; |
846 | } | |
847 | ||
073ba374 | 848 | /** \par |
9f5a2895 | 849 | * What does the reply have to say about keep-alive? |
850 | */ | |
073ba374 AJ |
851 | /** |
852 | \bug XXX BUG? | |
b6a2f15e | 853 | * If the origin server (HTTP/1.0) does not send a keep-alive |
854 | * header, but keeps the connection open anyway, what happens? | |
855 | * We'll return here and http.c waits for an EOF before changing | |
856 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
857 | * and an error status code, and we might have to wait until | |
858 | * the server times out the socket. | |
859 | */ | |
2afaba07 | 860 | if (!rep->keep_alive) |
528b2c61 | 861 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 862 | |
528b2c61 | 863 | return COMPLETE_PERSISTENT_MSG; |
864 | } | |
865 | ||
866 | HttpStateData::ConnectionStatus | |
867 | HttpStateData::persistentConnStatus() const | |
868 | { | |
ba82c452 | 869 | debugs(11, 3, "persistentConnStatus: FD " << fd << " eof=" << eof); |
585ab260 | 870 | const HttpReply *vrep = virginReply(); |
871 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
62e76326 | 872 | |
5f8252d2 | 873 | /* If we haven't seen the end of reply headers, we are not done */ |
bf8fe701 | 874 | debugs(11, 5, "persistentConnStatus: flags.headers_parsed=" << flags.headers_parsed); |
fc68f6b1 | 875 | |
1a98175f | 876 | if (!flags.headers_parsed) |
62e76326 | 877 | return INCOMPLETE_MSG; |
878 | ||
af0bb8e5 | 879 | /* In chunked responce we do not know the content length but we are absolutelly |
880 | * sure about the end of response, so we are calling the statusIfComplete to | |
881 | * decide if we can be persistant | |
882 | */ | |
883 | if (eof && flags.chunked) | |
884 | return statusIfComplete(); | |
885 | ||
ba82c452 | 886 | if (eof) // already reached EOF |
887 | return COMPLETE_NONPERSISTENT_MSG; | |
888 | ||
47f6e231 | 889 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 890 | |
bf8fe701 | 891 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 892 | |
35282fbf | 893 | /* If the body size is unknown we must wait for EOF */ |
894 | if (clen < 0) | |
62e76326 | 895 | return INCOMPLETE_MSG; |
896 | ||
5f8252d2 | 897 | /* If the body size is known, we must wait until we've gotten all of it. */ |
898 | if (clen > 0) { | |
899 | // old technique: | |
585ab260 | 900 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 901 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 902 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 903 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 904 | |
585ab260 | 905 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 906 | return INCOMPLETE_MSG; |
907 | } | |
62e76326 | 908 | |
5f8252d2 | 909 | /* If there is no message body or we got it all, we can be persistent */ |
910 | return statusIfComplete(); | |
603a02fd | 911 | } |
090089c4 | 912 | |
2afaba07 | 913 | /* |
914 | * This is the callback after some data has been read from the network | |
915 | */ | |
dc56a9b1 | 916 | /* |
e5ee81f0 | 917 | void |
918 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 919 | { |
920 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 921 | assert (fd == httpState->fd); |
2afaba07 | 922 | // assert(buf == readBuf->content()); |
1d5161bd | 923 | PROF_start(HttpStateData_readReply); |
2afaba07 | 924 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 925 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 926 | } |
dc56a9b1 | 927 | */ |
073ba374 | 928 | |
2afdbf48 | 929 | /* XXX this function is too long! */ |
c4b7a5a9 | 930 | void |
dc56a9b1 | 931 | HttpStateData::readReply (const CommIoCbParams &io) |
090089c4 | 932 | { |
30a4f2a8 | 933 | int bin; |
090089c4 | 934 | int clen; |
dc56a9b1 | 935 | int len = io.size; |
c4b7a5a9 | 936 | |
dc56a9b1 | 937 | assert(fd == io.fd); |
938 | ||
939 | flags.do_next_read = 0; | |
940 | ||
7a7cc03f | 941 | debugs(11, 5, "httpReadReply: FD " << fd << ": len " << len << "."); |
62e76326 | 942 | |
7a7cc03f | 943 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 944 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 945 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 946 | return; |
947 | } | |
948 | ||
e92e4e44 | 949 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
5f8252d2 | 950 | maybeReadVirginBody(); |
62e76326 | 951 | return; |
e92e4e44 | 952 | } |
c4b7a5a9 | 953 | |
fdf55365 | 954 | // handle I/O errors |
dc56a9b1 | 955 | if (io.flag != COMM_OK || len < 0) { |
7a7cc03f | 956 | debugs(11, 2, "httpReadReply: FD " << fd << ": read failure: " << xstrerror() << "."); |
fdf55365 | 957 | |
dc56a9b1 | 958 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 959 | flags.do_next_read = 1; |
960 | } else { | |
961 | ErrorState *err; | |
962 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
dc56a9b1 | 963 | err->xerrno = io.xerrno; |
fdf55365 | 964 | fwd->fail(err); |
965 | flags.do_next_read = 0; | |
966 | comm_close(fd); | |
967 | } | |
968 | ||
969 | return; | |
970 | } | |
971 | ||
7a7cc03f | 972 | // update I/O stats |
fdf55365 | 973 | if (len > 0) { |
2afaba07 | 974 | readBuf->appended(len); |
5f8252d2 | 975 | reply_bytes_read += len; |
447e176b | 976 | #if DELAY_POOLS |
2afaba07 | 977 | |
978 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 979 | delayId.bytesIn(len); |
447e176b | 980 | #endif |
62e76326 | 981 | |
982 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
983 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 984 | IOStats.Http.reads++; |
985 | ||
986 | for (clen = len - 1, bin = 0; clen; bin++) | |
987 | clen >>= 1; | |
988 | ||
989 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 990 | } |
62e76326 | 991 | |
073ba374 AJ |
992 | /** \par |
993 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 994 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
995 | * the response splitting countermeasures is extremely likely to trigger on this, | |
996 | * not allowing connection reuse in the first place. | |
997 | */ | |
998 | #if DONT_DO_THIS | |
fdf55365 | 999 | if (!flags.headers_parsed && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1000 | /* Skip whitespace between replies */ |
62e76326 | 1001 | |
e4755e29 | 1002 | while (len > 0 && xisspace(*buf)) |
62e76326 | 1003 | xmemmove(buf, buf + 1, len--); |
1004 | ||
1005 | if (len == 0) { | |
1006 | /* Continue to read... */ | |
21b92762 | 1007 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1008 | flags.do_next_read = 1; |
5f8252d2 | 1009 | maybeReadVirginBody(); |
62e76326 | 1010 | return; |
1011 | } | |
5ede6c8f | 1012 | } |
62e76326 | 1013 | |
5fa061b8 | 1014 | #endif |
1015 | ||
ba82c452 | 1016 | if (len == 0) { // reached EOF? |
62e76326 | 1017 | eof = 1; |
f61f0107 | 1018 | flags.do_next_read = 0; |
ba82c452 | 1019 | } |
62e76326 | 1020 | |
ba82c452 | 1021 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1022 | PROF_start(HttpStateData_processReplyHeader); | |
1023 | processReplyHeader(); | |
1024 | PROF_stop(HttpStateData_processReplyHeader); | |
1025 | ||
1026 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1027 | return; // TODO: send errors to ICAP | |
1028 | ||
585ab260 | 1029 | adaptOrFinalizeReply(); |
ba82c452 | 1030 | } |
1031 | ||
1032 | // kick more reads if needed and/or process the response body, if any | |
1033 | PROF_start(HttpStateData_processReplyBody); | |
1034 | processReplyBody(); // may call serverComplete() | |
1035 | PROF_stop(HttpStateData_processReplyBody); | |
1036 | } | |
1037 | ||
073ba374 AJ |
1038 | /** |
1039 | \retval true if we can continue with processing the body or doing ICAP. | |
1040 | */ | |
ba82c452 | 1041 | bool |
1042 | HttpStateData::continueAfterParsingHeader() | |
1043 | { | |
073ba374 | 1044 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1045 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1046 | flags.do_next_read = 1; | |
073ba374 AJ |
1047 | /** \retval false If we have not finished parsing the headers and may get more data. |
1048 | * Schedules more reads to retrieve the missing data. | |
1049 | */ | |
ba82c452 | 1050 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1051 | return false; |
ba82c452 | 1052 | } |
1053 | ||
073ba374 | 1054 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1055 | |
1056 | err_type error = ERR_NONE; | |
1057 | ||
1058 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1059 | // check for header parsing errors | |
585ab260 | 1060 | if (HttpReply *vrep = virginReply()) { |
1061 | const http_status s = vrep->sline.status; | |
1062 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1063 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
1064 | error = ERR_INVALID_RESP; | |
1065 | } else | |
1066 | if (s == HTTP_HEADER_TOO_LARGE) { | |
b6b6f466 | 1067 | fwd->dontRetry(true); |
ba82c452 | 1068 | error = ERR_TOO_BIG; |
4eb368f9 | 1069 | } else { |
ba82c452 | 1070 | return true; // done parsing, got reply, and no error |
4eb368f9 | 1071 | } |
ba82c452 | 1072 | } else { |
1073 | // parsed headers but got no reply | |
1074 | error = ERR_INVALID_RESP; | |
62e76326 | 1075 | } |
090089c4 | 1076 | } else { |
ba82c452 | 1077 | assert(eof); |
1078 | error = readBuf->hasContent() ? | |
1079 | ERR_INVALID_RESP : ERR_ZERO_SIZE_OBJECT; | |
2afaba07 | 1080 | } |
ba82c452 | 1081 | |
1082 | assert(error != ERR_NONE); | |
1083 | entry->reset(); | |
1084 | fwd->fail(errorCon(error, HTTP_BAD_GATEWAY, fwd->request)); | |
1085 | flags.do_next_read = 0; | |
1086 | comm_close(fd); | |
1087 | return false; // quit on error | |
2afaba07 | 1088 | } |
1089 | ||
073ba374 | 1090 | /** |
2afaba07 | 1091 | * Call this when there is data from the origin server |
1092 | * which should be sent to either StoreEntry, or to ICAP... | |
1093 | */ | |
1094 | void | |
5f8252d2 | 1095 | HttpStateData::writeReplyBody() |
2afaba07 | 1096 | { |
5f8252d2 | 1097 | const char *data = readBuf->content(); |
1098 | int len = readBuf->contentSize(); | |
bc81cb2b | 1099 | addVirginReplyBody(data, len); |
5f8252d2 | 1100 | readBuf->consume(len); |
af0bb8e5 | 1101 | } |
fc68f6b1 | 1102 | |
af0bb8e5 | 1103 | bool |
1104 | HttpStateData::decodeAndWriteReplyBody() | |
1105 | { | |
1106 | const char *data = NULL; | |
1107 | int len; | |
1108 | bool status = false; | |
1109 | assert(flags.chunked); | |
1110 | assert(httpChunkDecoder); | |
1111 | SQUID_ENTER_THROWING_CODE(); | |
1112 | MemBuf decodedData; | |
1113 | decodedData.init(); | |
1114 | const bool done = httpChunkDecoder->parse(readBuf,&decodedData); | |
1115 | len = decodedData.contentSize(); | |
1116 | data=decodedData.content(); | |
1117 | addVirginReplyBody(data, len); | |
1118 | if (done) { | |
1119 | eof = 1; | |
1120 | flags.do_next_read = 0; | |
1121 | } | |
1122 | SQUID_EXIT_THROWING_CODE(status); | |
1123 | return status; | |
e6ccf245 | 1124 | } |
1125 | ||
073ba374 | 1126 | /** |
2afaba07 | 1127 | * processReplyBody has two purposes: |
1128 | * 1 - take the reply body data, if any, and put it into either | |
1129 | * the StoreEntry, or give it over to ICAP. | |
1130 | * 2 - see if we made it to the end of the response (persistent | |
1131 | * connections and such) | |
1132 | */ | |
e6ccf245 | 1133 | void |
2afaba07 | 1134 | HttpStateData::processReplyBody() |
e6ccf245 | 1135 | { |
dc56a9b1 | 1136 | AsyncCall::Pointer call; |
cc192b50 | 1137 | IPAddress client_addr; |
fc68f6b1 | 1138 | |
1a98175f | 1139 | if (!flags.headers_parsed) { |
f61f0107 | 1140 | flags.do_next_read = 1; |
5f8252d2 | 1141 | maybeReadVirginBody(); |
62e76326 | 1142 | return; |
528b2c61 | 1143 | } |
62e76326 | 1144 | |
a83c6ed6 AR |
1145 | #if USE_ADAPTATION |
1146 | if (adaptationAccessCheckPending) | |
2afaba07 | 1147 | return; |
fc68f6b1 | 1148 | |
2afaba07 | 1149 | #endif |
62e76326 | 1150 | |
2afaba07 | 1151 | /* |
1152 | * At this point the reply headers have been parsed and consumed. | |
1153 | * That means header content has been removed from readBuf and | |
1154 | * it contains only body data. | |
1155 | */ | |
af0bb8e5 | 1156 | if(flags.chunked){ |
1157 | if(!decodeAndWriteReplyBody()){ | |
1158 | flags.do_next_read = 0; | |
1159 | serverComplete(); | |
1160 | return; | |
1161 | } | |
1162 | } | |
1163 | else | |
1164 | writeReplyBody(); | |
528b2c61 | 1165 | |
e6ccf245 | 1166 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1167 | /* |
073ba374 | 1168 | * The above writeReplyBody() call could ABORT this entry, |
62e76326 | 1169 | * in that case, the server FD should already be closed. |
1170 | * there's nothing for us to do. | |
1171 | */ | |
1172 | (void) 0; | |
1173 | } else | |
1174 | switch (persistentConnStatus()) { | |
62e76326 | 1175 | case INCOMPLETE_MSG: |
bf8fe701 | 1176 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG"); |
21b92762 | 1177 | /* Wait for more data or EOF condition */ |
21b92762 | 1178 | if (flags.keepalive_broken) { |
dc56a9b1 | 1179 | call = NULL; |
1180 | commSetTimeout(fd, 10, call); | |
21b92762 | 1181 | } else { |
dc56a9b1 | 1182 | call = NULL; |
1183 | commSetTimeout(fd, Config.Timeout.read, call); | |
21b92762 | 1184 | } |
1185 | ||
f61f0107 | 1186 | flags.do_next_read = 1; |
62e76326 | 1187 | break; |
1188 | ||
1189 | case COMPLETE_PERSISTENT_MSG: | |
bf8fe701 | 1190 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG"); |
62e76326 | 1191 | /* yes we have to clear all these! */ |
dc56a9b1 | 1192 | call = NULL; |
1193 | commSetTimeout(fd, -1, call); | |
f61f0107 | 1194 | flags.do_next_read = 0; |
62e76326 | 1195 | |
dc56a9b1 | 1196 | comm_remove_close_handler(fd, closeHandler); |
1197 | closeHandler = NULL; | |
b6b6f466 | 1198 | fwd->unregister(fd); |
fc68f6b1 | 1199 | |
f165d2fb | 1200 | if (orig_request->flags.spoof_client_ip) |
cc192b50 | 1201 | client_addr = orig_request->client_addr; |
fc68f6b1 | 1202 | |
bd0723ad | 1203 | if (_peer) { |
1204 | if (_peer->options.originserver) | |
cc192b50 | 1205 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->GetHost(), client_addr); |
bd0723ad | 1206 | else |
fc68f6b1 | 1207 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL, client_addr); |
bd0723ad | 1208 | } else { |
cc192b50 | 1209 | fwd->pconnPush(fd, request->GetHost(), request->port, NULL, client_addr); |
bd0723ad | 1210 | } |
1211 | ||
62e76326 | 1212 | fd = -1; |
2afaba07 | 1213 | |
5f8252d2 | 1214 | serverComplete(); |
62e76326 | 1215 | return; |
1216 | ||
1217 | case COMPLETE_NONPERSISTENT_MSG: | |
bf8fe701 | 1218 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG"); |
5f8252d2 | 1219 | serverComplete(); |
62e76326 | 1220 | return; |
1221 | } | |
1222 | ||
5f8252d2 | 1223 | maybeReadVirginBody(); |
c4b7a5a9 | 1224 | } |
1225 | ||
1226 | void | |
5f8252d2 | 1227 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1228 | { |
7dc79973 | 1229 | int read_sz = replyBodySpace(readBuf->spaceSize()); |
2afaba07 | 1230 | |
5f8252d2 | 1231 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
fc68f6b1 | 1232 | " read up to " << read_sz << " bytes from FD " << fd); |
2afaba07 | 1233 | |
1234 | /* | |
1235 | * why <2? Because delayAwareRead() won't actually read if | |
1236 | * you ask it to read 1 byte. The delayed read request | |
1237 | * just gets re-queued until the client side drains, then | |
1238 | * the I/O thread hangs. Better to not register any read | |
1239 | * handler until we get a notification from someone that | |
1240 | * its okay to read again. | |
1241 | */ | |
53dbd8cb | 1242 | if (read_sz < 2) { |
1243 | if (flags.headers_parsed) | |
1244 | return; | |
1245 | else | |
1246 | read_sz = 1024; | |
1247 | } | |
2afaba07 | 1248 | |
f61f0107 | 1249 | if (flags.do_next_read) { |
dc56a9b1 | 1250 | flags.do_next_read = 0; |
1251 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
1252 | entry->delayAwareRead(fd, readBuf->space(read_sz), read_sz, | |
1253 | asyncCall(11, 5, "HttpStateData::readReply", | |
1254 | Dialer(this, &HttpStateData::readReply))); | |
528b2c61 | 1255 | } |
090089c4 | 1256 | } |
1257 | ||
2afaba07 | 1258 | /* |
1259 | * This will be called when request write is complete. | |
1260 | */ | |
d576a6a6 | 1261 | void |
dc56a9b1 | 1262 | HttpStateData::sendComplete(const CommIoCbParams &io) |
090089c4 | 1263 | { |
dc56a9b1 | 1264 | debugs(11, 5, "httpSendComplete: FD " << fd << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1265 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1266 | |
528b2c61 | 1267 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1268 | #endif |
62e76326 | 1269 | |
dc56a9b1 | 1270 | if (io.size > 0) { |
1271 | fd_bytes(fd, io.size, FD_WRITE); | |
1272 | kb_incr(&statCounter.server.all.kbytes_out, io.size); | |
1273 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
ee1679df | 1274 | } |
62e76326 | 1275 | |
dc56a9b1 | 1276 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1277 | return; |
1278 | ||
dc56a9b1 | 1279 | if (io.flag) { |
6cae5db1 | 1280 | ErrorState *err; |
dc56a9b1 | 1281 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
1282 | err->xerrno = io.xerrno; | |
1283 | fwd->fail(err); | |
62e76326 | 1284 | comm_close(fd); |
1285 | return; | |
090089c4 | 1286 | } |
72b63f06 | 1287 | |
2afaba07 | 1288 | /* |
1289 | * Set the read timeout here because it hasn't been set yet. | |
1290 | * We only set the read timeout after the request has been | |
1291 | * fully written to the server-side. If we start the timeout | |
1292 | * after connection establishment, then we are likely to hit | |
1293 | * the timeout for POST/PUT requests that have very large | |
1294 | * request bodies. | |
1295 | */ | |
dc56a9b1 | 1296 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
1297 | AsyncCall::Pointer timeoutCall = asyncCall(11, 5, "HttpStateData::httpTimeout", | |
1298 | TimeoutDialer(this,&HttpStateData::httpTimeout)); | |
2afaba07 | 1299 | |
dc56a9b1 | 1300 | commSetTimeout(fd, Config.Timeout.read, timeoutCall); |
1301 | ||
1302 | flags.request_sent = 1; | |
090089c4 | 1303 | } |
1304 | ||
5f8252d2 | 1305 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1306 | void |
5f8252d2 | 1307 | HttpStateData::closeServer() |
2afaba07 | 1308 | { |
5f8252d2 | 1309 | debugs(11,5, HERE << "closing HTTP server FD " << fd << " this " << this); |
fc68f6b1 | 1310 | |
2afaba07 | 1311 | if (fd >= 0) { |
b6b6f466 | 1312 | fwd->unregister(fd); |
dc56a9b1 | 1313 | comm_remove_close_handler(fd, closeHandler); |
1314 | closeHandler = NULL; | |
2afaba07 | 1315 | comm_close(fd); |
1316 | fd = -1; | |
1317 | } | |
5f8252d2 | 1318 | } |
2afaba07 | 1319 | |
5f8252d2 | 1320 | bool |
1321 | HttpStateData::doneWithServer() const | |
1322 | { | |
1323 | return fd < 0; | |
2afaba07 | 1324 | } |
1325 | ||
99edd1c3 | 1326 | /* |
1327 | * build request headers and append them to a given MemBuf | |
e5ee81f0 | 1328 | * used by buildRequestPrefix() |
818c6c9e | 1329 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1330 | */ |
e1e72f06 | 1331 | void |
e5ee81f0 | 1332 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1333 | HttpRequest * orig_request, | |
1334 | StoreEntry * entry, | |
1335 | HttpHeader * hdr_out, | |
1336 | http_state_flags flags) | |
6bf8443a | 1337 | { |
99edd1c3 | 1338 | /* building buffer for complex strings */ |
5999b776 | 1339 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1340 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1341 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
99edd1c3 | 1342 | const HttpHeader *hdr_in = &orig_request->header; |
67c06f0d | 1343 | const HttpHeaderEntry *e = NULL; |
30abd221 | 1344 | String strFwd; |
99edd1c3 | 1345 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1346 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1347 | /* append our IMS header */ |
62e76326 | 1348 | |
fa3e249f | 1349 | if (request->lastmod > -1) |
a9925b40 | 1350 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1351 | |
528b2c61 | 1352 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1353 | ||
30abd221 | 1354 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1355 | |
a9925b40 | 1356 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1357 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1358 | |
43ae1d95 | 1359 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1360 | * into offset-length data, and this works around our inability to do so. |
1361 | */ | |
62e76326 | 1362 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1363 | /* don't cache the result */ | |
1364 | orig_request->flags.cachable = 0; | |
1365 | /* pretend it's not a range request */ | |
00d77d6b | 1366 | delete orig_request->range; |
62e76326 | 1367 | orig_request->range = NULL; |
1368 | orig_request->flags.range = 0; | |
1369 | } | |
528b2c61 | 1370 | |
99edd1c3 | 1371 | /* append Via */ |
736cb6aa | 1372 | if (Config.onoff.via) { |
30abd221 | 1373 | String strVia; |
a9925b40 | 1374 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1375 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1376 | orig_request->http_ver.major, | |
1377 | orig_request->http_ver.minor, ThisCache); | |
1378 | strListAdd(&strVia, bbuf, ','); | |
30abd221 | 1379 | hdr_out->putStr(HDR_VIA, strVia.buf()); |
1380 | strVia.clean(); | |
736cb6aa | 1381 | } |
62e76326 | 1382 | |
f41735ea | 1383 | #if USE_SQUID_ESI |
43ae1d95 | 1384 | { |
1385 | /* Append Surrogate-Capabilities */ | |
30abd221 | 1386 | String strSurrogate (hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
ec43ae0e | 1387 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1388 | Config.Accel.surrogate_id); |
1389 | strListAdd(&strSurrogate, bbuf, ','); | |
30abd221 | 1390 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); |
43ae1d95 | 1391 | } |
1392 | #endif | |
1393 | ||
a9925b40 | 1394 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); |
62e76326 | 1395 | |
67c06f0d AJ |
1396 | /** \pre Handle X-Forwarded-For */ |
1397 | if(strcmp(opt_forwarded_for, "delete") != 0) { | |
1398 | if(strcmp(opt_forwarded_for, "on") == 0) { | |
1399 | /** If set to ON - append client IP or 'unknown'. */ | |
1400 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1401 | if( orig_request->client_addr.IsNoAddr() ) | |
1402 | strListAdd(&strFwd, "unknown", ','); | |
1403 | else | |
1404 | strListAdd(&strFwd, orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); | |
1405 | } else if(strcmp(opt_forwarded_for, "off") == 0) { | |
1406 | /** If set to OFF - append 'unknown'. */ | |
1407 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1408 | strListAdd(&strFwd, "unknown", ','); | |
1409 | } else if(strcmp(opt_forwarded_for, "transparent") == 0) { | |
1410 | /** If set to TRANSPARENT - pass through unchanged. */ | |
1411 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1412 | } else if(strcmp(opt_forwarded_for, "truncate") == 0) { | |
1413 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ | |
1414 | if( orig_request->client_addr.IsNoAddr() ) | |
1415 | strFwd = "unknown"; | |
1416 | else | |
1417 | strFwd = orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); | |
1418 | } | |
1419 | if(strFwd.size() > 0) | |
1420 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.buf()); | |
cc192b50 | 1421 | } |
67c06f0d | 1422 | /** If set to DELETE - do not copy through. */ |
30abd221 | 1423 | strFwd.clean(); |
6bccf575 | 1424 | |
99edd1c3 | 1425 | /* append Host if not there already */ |
a9925b40 | 1426 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1427 | if (orig_request->peer_domain) { |
a9925b40 | 1428 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1429 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1430 | /* use port# only if not default */ | |
cc192b50 | 1431 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
62e76326 | 1432 | } else { |
1433 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1434 | orig_request->GetHost(), |
1435 | (int) orig_request->port); | |
62e76326 | 1436 | } |
6bf8443a | 1437 | } |
62e76326 | 1438 | |
c68e9c6b | 1439 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1440 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1441 | if (!request->flags.proxying && *request->login) { |
1442 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1443 | base64_encode(request->login)); | |
1444 | } | |
c68e9c6b | 1445 | } |
62e76326 | 1446 | |
c68e9c6b | 1447 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1448 | if (request->flags.proxying && orig_request->peer_login && |
a9925b40 | 1449 | !hdr_out->has(HDR_PROXY_AUTHORIZATION)) { |
62e76326 | 1450 | if (*orig_request->peer_login == '*') { |
1451 | /* Special mode, to pass the username to the upstream cache */ | |
1452 | char loginbuf[256]; | |
1453 | const char *username = "-"; | |
1454 | ||
a8bc2b9c | 1455 | if (orig_request->extacl_user.size()) |
30abd221 | 1456 | username = orig_request->extacl_user.buf(); |
a8bc2b9c | 1457 | else if (orig_request->auth_user_request) |
1458 | username = orig_request->auth_user_request->username(); | |
62e76326 | 1459 | |
1460 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1461 | ||
1462 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1463 | base64_encode(loginbuf)); | |
1464 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1465 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1466 | char loginbuf[256]; | |
30abd221 | 1467 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); |
abb929f0 | 1468 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", |
1469 | base64_encode(loginbuf)); | |
1470 | } | |
62e76326 | 1471 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1472 | /* Nothing to do */ | |
1473 | } else { | |
1474 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1475 | base64_encode(orig_request->peer_login)); | |
1476 | } | |
c68e9c6b | 1477 | } |
62e76326 | 1478 | |
be753325 | 1479 | /* append WWW-Authorization if configured for peer */ |
1480 | if (flags.originpeer && orig_request->peer_login && | |
a9925b40 | 1481 | !hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1482 | if (strcmp(orig_request->peer_login, "PASS") == 0) { |
1483 | /* No credentials to forward.. (should have been done above if available) */ | |
1484 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1485 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1486 | * (also applies to authentication provided by external acl) |
62e76326 | 1487 | */ |
a9925b40 | 1488 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
62e76326 | 1489 | |
1490 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
a9925b40 | 1491 | hdr_out->putStr(HDR_AUTHORIZATION, auth); |
abb929f0 | 1492 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1493 | char loginbuf[256]; | |
30abd221 | 1494 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); |
abb929f0 | 1495 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
1496 | base64_encode(loginbuf)); | |
62e76326 | 1497 | } |
1498 | } else if (*orig_request->peer_login == '*') { | |
1499 | /* Special mode, to pass the username to the upstream cache */ | |
1500 | char loginbuf[256]; | |
1501 | const char *username = "-"; | |
1502 | ||
1503 | if (orig_request->auth_user_request) | |
f5691f9c | 1504 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1505 | else if (orig_request->extacl_user.size()) |
30abd221 | 1506 | username = orig_request->extacl_user.buf(); |
62e76326 | 1507 | |
1508 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1509 | ||
1510 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1511 | base64_encode(loginbuf)); | |
1512 | } else { | |
1513 | /* Fixed login string */ | |
1514 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1515 | base64_encode(orig_request->peer_login)); | |
1516 | } | |
be753325 | 1517 | } |
62e76326 | 1518 | |
abb929f0 | 1519 | /* append Cache-Control, add max-age if not there already */ { |
a9925b40 | 1520 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1521 | |
1522 | if (!cc) | |
1523 | cc = httpHdrCcCreate(); | |
1524 | ||
1525 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE)) { | |
43ae1d95 | 1526 | const char *url = |
3900307b | 1527 | entry ? entry->url() : urlCanonical(orig_request); |
62e76326 | 1528 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1529 | ||
1530 | if (request->urlpath.size()) | |
30abd221 | 1531 | assert(strstr(url, request->urlpath.buf())); |
62e76326 | 1532 | } |
1533 | ||
ce2d6441 | 1534 | /* Set no-cache if determined needed but not found */ |
a9925b40 | 1535 | if (orig_request->flags.nocache && !hdr_in->has(HDR_PRAGMA)) |
ce2d6441 | 1536 | EBIT_SET(cc->mask, CC_NO_CACHE); |
1537 | ||
1538 | /* Enforce sibling relations */ | |
62e76326 | 1539 | if (flags.only_if_cached) |
1540 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1541 | ||
a9925b40 | 1542 | hdr_out->putCc(cc); |
62e76326 | 1543 | |
1544 | httpHdrCcDestroy(cc); | |
6bf8443a | 1545 | } |
62e76326 | 1546 | |
99edd1c3 | 1547 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1548 | if (flags.keepalive) { |
62e76326 | 1549 | if (flags.proxying) { |
a9925b40 | 1550 | hdr_out->putStr(HDR_PROXY_CONNECTION, "keep-alive"); |
62e76326 | 1551 | } else { |
a9925b40 | 1552 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
62e76326 | 1553 | } |
603a02fd | 1554 | } |
62e76326 | 1555 | |
a7ad6e4e | 1556 | /* append Front-End-Https */ |
1557 | if (flags.front_end_https) { | |
62e76326 | 1558 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1559 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1560 | } |
1561 | ||
6bccf575 | 1562 | /* Now mangle the headers. */ |
4f56514c | 1563 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1564 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1565 | |
30abd221 | 1566 | strConnection.clean(); |
99edd1c3 | 1567 | } |
1568 | ||
528b2c61 | 1569 | void |
30abd221 | 1570 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1571 | { |
30abd221 | 1572 | debugs(11, 5, "httpBuildRequestHeader: " << e->name.buf() << ": " << e->value.buf()); |
62e76326 | 1573 | |
528b2c61 | 1574 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
30abd221 | 1575 | debugs(11, 2, "'" << e->name.buf() << "' header denied by anonymize_headers configuration"); |
62e76326 | 1576 | return; |
528b2c61 | 1577 | } |
62e76326 | 1578 | |
528b2c61 | 1579 | switch (e->id) { |
62e76326 | 1580 | |
be753325 | 1581 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1582 | /* Only pass on proxy authentication to peers for which |
1583 | * authentication forwarding is explicitly enabled | |
1584 | */ | |
1585 | ||
1586 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1587 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1588 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1589 | hdr_out->addEntry(e->clone()); |
62e76326 | 1590 | } |
1591 | ||
1592 | break; | |
1593 | ||
be753325 | 1594 | case HDR_AUTHORIZATION: |
62e76326 | 1595 | /* Pass on WWW authentication */ |
1596 | ||
1597 | if (!flags.originpeer) { | |
eede25e7 | 1598 | hdr_out->addEntry(e->clone()); |
62e76326 | 1599 | } else { |
1600 | /* In accelerators, only forward authentication if enabled | |
1601 | * (see also below for proxy->server authentication) | |
1602 | */ | |
1603 | ||
abb929f0 | 1604 | if (orig_request->peer_login && |
1605 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1606 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1607 | hdr_out->addEntry(e->clone()); |
62e76326 | 1608 | } |
1609 | } | |
1610 | ||
1611 | break; | |
1612 | ||
be753325 | 1613 | case HDR_HOST: |
62e76326 | 1614 | /* |
b883b594 | 1615 | * Normally Squid rewrites the Host: header. |
1616 | * However, there is one case when we don't: If the URL | |
62e76326 | 1617 | * went through our redirector and the admin configured |
1618 | * 'redir_rewrites_host' to be off. | |
1619 | */ | |
1620 | ||
b883b594 | 1621 | if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 1622 | hdr_out->addEntry(e->clone()); |
b883b594 | 1623 | else { |
1624 | /* use port# only if not default */ | |
1625 | ||
1626 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
cc192b50 | 1627 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
b883b594 | 1628 | } else { |
1629 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1630 | orig_request->GetHost(), |
1631 | (int) orig_request->port); | |
b883b594 | 1632 | } |
1633 | } | |
62e76326 | 1634 | |
1635 | break; | |
1636 | ||
be753325 | 1637 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1638 | /* append unless we added our own; |
1639 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1640 | |
a9925b40 | 1641 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1642 | hdr_out->addEntry(e->clone()); |
62e76326 | 1643 | |
1644 | break; | |
1645 | ||
be753325 | 1646 | case HDR_MAX_FORWARDS: |
62e76326 | 1647 | if (orig_request->method == METHOD_TRACE) { |
eede25e7 | 1648 | const int hops = e->getInt(); |
62e76326 | 1649 | |
1650 | if (hops > 0) | |
a9925b40 | 1651 | hdr_out->putInt(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1652 | } |
1653 | ||
1654 | break; | |
1655 | ||
be753325 | 1656 | case HDR_VIA: |
62e76326 | 1657 | /* If Via is disabled then forward any received header as-is */ |
1658 | ||
1659 | if (!Config.onoff.via) | |
eede25e7 | 1660 | hdr_out->addEntry(e->clone()); |
62e76326 | 1661 | |
1662 | break; | |
1663 | ||
be753325 | 1664 | case HDR_RANGE: |
62e76326 | 1665 | |
be753325 | 1666 | case HDR_IF_RANGE: |
62e76326 | 1667 | |
be753325 | 1668 | case HDR_REQUEST_RANGE: |
62e76326 | 1669 | if (!we_do_ranges) |
eede25e7 | 1670 | hdr_out->addEntry(e->clone()); |
62e76326 | 1671 | |
1672 | break; | |
1673 | ||
be753325 | 1674 | case HDR_PROXY_CONNECTION: |
62e76326 | 1675 | |
be753325 | 1676 | case HDR_CONNECTION: |
62e76326 | 1677 | |
be753325 | 1678 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1679 | |
be753325 | 1680 | case HDR_CACHE_CONTROL: |
62e76326 | 1681 | /* append these after the loop if needed */ |
1682 | break; | |
1683 | ||
be753325 | 1684 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1685 | if (!flags.front_end_https) |
eede25e7 | 1686 | hdr_out->addEntry(e->clone()); |
62e76326 | 1687 | |
1688 | break; | |
1689 | ||
be753325 | 1690 | default: |
62e76326 | 1691 | /* pass on all other header fields */ |
eede25e7 | 1692 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1693 | } |
1694 | } | |
1695 | ||
e5ee81f0 | 1696 | bool |
1697 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1698 | { |
e5ee81f0 | 1699 | bool result = true; |
62e76326 | 1700 | /* decide if we want to do Ranges ourselves |
1701 | * and fetch the whole object now) | |
1702 | * We want to handle Ranges ourselves iff | |
1703 | * - we can actually parse client Range specs | |
1704 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1705 | * - reply will be cachable | |
1706 | * (If the reply will be uncachable we have to throw it away after | |
1707 | * serving this request, so it is better to forward ranges to | |
1708 | * the server and fetch only the requested content) | |
1709 | */ | |
1710 | ||
1711 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
1712 | || orig_request->range->offsetLimitExceeded()) | |
e5ee81f0 | 1713 | result = false; |
62e76326 | 1714 | |
bf8fe701 | 1715 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
1716 | orig_request->range << ", cachable: " << | |
1717 | orig_request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 1718 | |
1719 | return result; | |
528b2c61 | 1720 | } |
1721 | ||
62e76326 | 1722 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1723 | * return the length of the prefix */ |
9bc73deb | 1724 | mb_size_t |
e5ee81f0 | 1725 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1726 | HttpRequest * orig_request, | |
1727 | StoreEntry * entry, | |
1728 | MemBuf * mb, | |
1729 | http_state_flags flags) | |
99edd1c3 | 1730 | { |
1731 | const int offset = mb->size; | |
450e0c10 | 1732 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1733 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
60745f24 | 1734 | RequestMethodStr(request->method), |
30abd221 | 1735 | request->urlpath.size() ? request->urlpath.buf() : "/", |
2fe7eff9 | 1736 | httpver.major,httpver.minor); |
99edd1c3 | 1737 | /* build and pack headers */ |
1738 | { | |
75faaa7a | 1739 | HttpHeader hdr(hoRequest); |
62e76326 | 1740 | Packer p; |
1741 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
1742 | packerToMemInit(&p, mb); | |
a9925b40 | 1743 | hdr.packInto(&p); |
519e0948 | 1744 | hdr.clean(); |
62e76326 | 1745 | packerClean(&p); |
9d9d144b | 1746 | } |
99edd1c3 | 1747 | /* append header terminator */ |
2fe7eff9 | 1748 | mb->append(crlf, 2); |
99edd1c3 | 1749 | return mb->size - offset; |
6bf8443a | 1750 | } |
62e76326 | 1751 | |
090089c4 | 1752 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 1753 | bool |
2bb867b5 | 1754 | HttpStateData::sendRequest() |
090089c4 | 1755 | { |
99edd1c3 | 1756 | MemBuf mb; |
090089c4 | 1757 | |
bf8fe701 | 1758 | debugs(11, 5, "httpSendRequest: FD " << fd << ", request " << request << ", this " << this << "."); |
dc56a9b1 | 1759 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
1760 | AsyncCall::Pointer timeoutCall = asyncCall(11, 5, "HttpStateData::httpTimeout", | |
1761 | TimeoutDialer(this,&HttpStateData::httpTimeout)); | |
1762 | commSetTimeout(fd, Config.Timeout.lifetime, timeoutCall); | |
2bb867b5 | 1763 | flags.do_next_read = 1; |
5f8252d2 | 1764 | maybeReadVirginBody(); |
1765 | ||
1766 | if (orig_request->body_pipe != NULL) { | |
123ec4de | 1767 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 1768 | return false; |
dc56a9b1 | 1769 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
1770 | Dialer dialer(this, &HttpStateData::sentRequestBody); | |
1771 | requestSender = asyncCall(11,5, "HttpStateData::sentRequestBody", dialer); | |
5f8252d2 | 1772 | } else { |
1773 | assert(!requestBodySource); | |
dc56a9b1 | 1774 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
1775 | Dialer dialer(this, &HttpStateData::sendComplete); | |
1776 | requestSender = asyncCall(11,5, "HttpStateData::SendComplete", dialer); | |
5f8252d2 | 1777 | } |
54220df8 | 1778 | |
2bb867b5 | 1779 | if (_peer != NULL) { |
1780 | if (_peer->options.originserver) { | |
1781 | flags.proxying = 0; | |
1782 | flags.originpeer = 1; | |
62e76326 | 1783 | } else { |
2bb867b5 | 1784 | flags.proxying = 1; |
1785 | flags.originpeer = 0; | |
62e76326 | 1786 | } |
be753325 | 1787 | } else { |
2bb867b5 | 1788 | flags.proxying = 0; |
1789 | flags.originpeer = 0; | |
be753325 | 1790 | } |
62e76326 | 1791 | |
efb9218c | 1792 | /* |
99edd1c3 | 1793 | * Is keep-alive okay for all request methods? |
efb9218c | 1794 | */ |
efd900cb | 1795 | if (!Config.onoff.server_pconns) |
2bb867b5 | 1796 | flags.keepalive = 0; |
1797 | else if (_peer == NULL) | |
1798 | flags.keepalive = 1; | |
1799 | else if (_peer->stats.n_keepalives_sent < 10) | |
1800 | flags.keepalive = 1; | |
1801 | else if ((double) _peer->stats.n_keepalives_recv / | |
1802 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1803 | flags.keepalive = 1; | |
1804 | ||
1805 | if (_peer) { | |
1806 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1807 | !_peer->options.allow_miss) | |
1808 | flags.only_if_cached = 1; | |
1809 | ||
1810 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1811 | } |
62e76326 | 1812 | |
2fe7eff9 | 1813 | mb.init(); |
e5ee81f0 | 1814 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
bf8fe701 | 1815 | debugs(11, 6, "httpSendRequest: FD " << fd << ":\n" << mb.buf); |
dc56a9b1 | 1816 | comm_write_mbuf(fd, &mb, requestSender); |
5f8252d2 | 1817 | |
1818 | return true; | |
090089c4 | 1819 | } |
b6a2f15e | 1820 | |
910169e5 | 1821 | void |
b6b6f466 | 1822 | httpStart(FwdState *fwd) |
603a02fd | 1823 | { |
60745f24 | 1824 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
a3d50c30 | 1825 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1826 | |
5f8252d2 | 1827 | if (!httpState->sendRequest()) { |
bf8fe701 | 1828 | debugs(11, 3, "httpStart: aborted"); |
5f8252d2 | 1829 | delete httpState; |
1830 | return; | |
1831 | } | |
62e76326 | 1832 | |
5f8252d2 | 1833 | statCounter.server.all.requests++; |
83704487 | 1834 | statCounter.server.http.requests++; |
62e76326 | 1835 | |
b6a2f15e | 1836 | /* |
1837 | * We used to set the read timeout here, but not any more. | |
1838 | * Now its set in httpSendComplete() after the full request, | |
1839 | * including request body, has been written to the server. | |
1840 | */ | |
090089c4 | 1841 | } |
1842 | ||
2bb867b5 | 1843 | void |
5f8252d2 | 1844 | HttpStateData::doneSendingRequestBody() |
2bb867b5 | 1845 | { |
4fb35c3c | 1846 | ACLChecklist ch; |
5f8252d2 | 1847 | debugs(11,5, HERE << "doneSendingRequestBody: FD " << fd); |
6dd9f4bd | 1848 | ch.request = HTTPMSGLOCK(request); |
506768d9 | 1849 | |
1850 | if (Config.accessList.brokenPosts) | |
1851 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1852 | |
108d65b2 | 1853 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1854 | ||
94439e4e | 1855 | if (!Config.accessList.brokenPosts) { |
bf8fe701 | 1856 | debugs(11, 5, "doneSendingRequestBody: No brokenPosts list"); |
dc56a9b1 | 1857 | CommIoCbParams io(NULL); |
1858 | io.fd=fd; | |
1859 | io.flag=COMM_OK; | |
1860 | sendComplete(io); | |
b448c119 | 1861 | } else if (!ch.fastCheck()) { |
bf8fe701 | 1862 | debugs(11, 5, "doneSendingRequestBody: didn't match brokenPosts"); |
dc56a9b1 | 1863 | CommIoCbParams io(NULL); |
1864 | io.fd=fd; | |
1865 | io.flag=COMM_OK; | |
1866 | sendComplete(io); | |
94439e4e | 1867 | } else { |
bf8fe701 | 1868 | debugs(11, 2, "doneSendingRequestBody: matched brokenPosts"); |
dc56a9b1 | 1869 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
1870 | Dialer dialer(this, &HttpStateData::sendComplete); | |
1871 | AsyncCall::Pointer call= asyncCall(11,5, "HttpStateData::SendComplete", dialer); | |
1872 | comm_write(fd, "\r\n", 2, call); | |
54220df8 | 1873 | } |
94439e4e | 1874 | } |
1875 | ||
5f8252d2 | 1876 | // more origin request body data is available |
2bb867b5 | 1877 | void |
5f8252d2 | 1878 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 1879 | { |
2bb867b5 | 1880 | if (eof || fd < 0) { |
5f8252d2 | 1881 | // XXX: we should check this condition in other callbacks then! |
1882 | // TODO: Check whether this can actually happen: We should unsubscribe | |
1883 | // as a body consumer when the above condition(s) are detected. | |
2bb867b5 | 1884 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 1885 | return; |
1886 | } | |
62e76326 | 1887 | |
5f8252d2 | 1888 | assert(requestBodySource != NULL); |
fc68f6b1 | 1889 | |
5f8252d2 | 1890 | if (requestBodySource->buf().hasContent()) { |
1891 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 1892 | |
2bb867b5 | 1893 | if (flags.headers_parsed && !flags.abuse_detected) { |
1894 | flags.abuse_detected = 1; | |
cc192b50 | 1895 | debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << orig_request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 1896 | |
585ab260 | 1897 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 1898 | comm_close(fd); |
21b92762 | 1899 | return; |
1900 | } | |
1901 | } | |
b6a2f15e | 1902 | } |
5f8252d2 | 1903 | |
1904 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 1905 | } |
1906 | ||
5f8252d2 | 1907 | // premature end of the request body |
2bb867b5 | 1908 | void |
5f8252d2 | 1909 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 1910 | { |
5f8252d2 | 1911 | ServerStateData::handleRequestBodyProducerAborted(); |
1912 | // XXX: SendComplete(COMM_ERR_CLOSING) does little. Is it enough? | |
dc56a9b1 | 1913 | CommIoCbParams io(NULL); |
1914 | io.fd=fd; | |
1915 | io.flag=COMM_ERR_CLOSING; | |
1916 | sendComplete(io); | |
2bb867b5 | 1917 | } |
1918 | ||
5f8252d2 | 1919 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 1920 | void |
dc56a9b1 | 1921 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 1922 | { |
dc56a9b1 | 1923 | if (io.size > 0) |
1924 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 1925 | |
dc56a9b1 | 1926 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 1927 | } |
3b299123 | 1928 | |
5f8252d2 | 1929 | // Quickly abort the transaction |
1930 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
1931 | // including canceling close handlers | |
1932 | void | |
1933 | HttpStateData::abortTransaction(const char *reason) | |
1934 | { | |
1935 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
1936 | "; FD " << fd << ", this " << this); | |
fc68f6b1 | 1937 | |
3e8c047e | 1938 | if (fd >= 0) { |
62e76326 | 1939 | comm_close(fd); |
3e8c047e | 1940 | return; |
c23f0c74 | 1941 | } |
3e8c047e | 1942 | |
1943 | fwd->handleUnregisteredServerEnd(); | |
dc56a9b1 | 1944 | deleteThis("HttpStateData::abortTransaction"); |
54220df8 | 1945 | } |
ccf44862 | 1946 | |
073ba374 | 1947 | #if DEAD_CODE |
ccf44862 | 1948 | void |
450e0c10 | 1949 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 1950 | { |
1951 | version->major = major; | |
1952 | version->minor = minor; | |
ccf44862 | 1953 | } |
073ba374 | 1954 | #endif |
2afaba07 | 1955 | |
7c4e4e7f | 1956 | HttpRequest * |
1957 | HttpStateData::originalRequest() | |
2afaba07 | 1958 | { |
7c4e4e7f | 1959 | return orig_request; |
2afaba07 | 1960 | } |