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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. | |
9e008dda | 24 | * |
30a4f2a8 | 25 | * This program is distributed in the hope that it will be useful, |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
9e008dda | 29 | * |
30a4f2a8 | 30 | * You should have received a copy of the GNU General Public License |
31 | * along with this program; if not, write to the Free Software | |
cbdec147 | 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 33 | * |
30a4f2a8 | 34 | */ |
019dd986 | 35 | |
4a83b852 | 36 | /* |
37 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
de3bdb4c | 38 | * have a look into http-anon.c to get more informations. |
4a83b852 | 39 | */ |
40 | ||
44a47c6e | 41 | #include "squid.h" |
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 | } \ | |
0a8bbeeb AR |
65 | catch (const std::exception &e) { \ |
66 | debugs (11, 1, "Exception error:" << e.what()); \ | |
af0bb8e5 | 67 | status = false; \ |
9e008dda | 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), |
839291ac | 79 | lastChunk(0), 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, |
9e008dda | 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", | |
9e008dda | 137 | Dialer(this,&HttpStateData::httpStateConnClosed)); |
dc56a9b1 | 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 | ||
9e008dda AJ |
152 | if (httpChunkDecoder) |
153 | delete httpChunkDecoder; | |
af0bb8e5 | 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 | ||
9e008dda | 174 | void |
dc56a9b1 | 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 | |
9e008dda | 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); |
d9129474 | 277 | #if USE_HTCP |
8dceeee3 | 278 | neighborsHtcpClear(e, NULL, e->mem_obj->request, e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 279 | #endif |
5f33b71d | 280 | pe->release(); |
0856d155 | 281 | } |
62e76326 | 282 | |
914b89a2 | 283 | /** \par |
7e3ce7b9 | 284 | * Also remove any cached HEAD response in case the object has |
285 | * changed. | |
286 | */ | |
f66a9ef4 | 287 | if (e->mem_obj->request) |
62e76326 | 288 | pe = storeGetPublicByRequestMethod(e->mem_obj->request, METHOD_HEAD); |
f66a9ef4 | 289 | else |
62e76326 | 290 | pe = storeGetPublic(e->mem_obj->url, METHOD_HEAD); |
291 | ||
f66a9ef4 | 292 | if (pe != NULL) { |
62e76326 | 293 | assert(e != pe); |
d9129474 | 294 | #if USE_HTCP |
8dceeee3 | 295 | neighborsHtcpClear(e, NULL, e->mem_obj->request, HttpRequestMethod(METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 296 | #endif |
5f33b71d | 297 | pe->release(); |
7e3ce7b9 | 298 | } |
f9cece6e | 299 | } |
300 | ||
43ae1d95 | 301 | void |
302 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
303 | { | |
f41735ea | 304 | #if USE_SQUID_ESI |
43ae1d95 | 305 | |
306 | if (request->flags.accelerated && reply->surrogate_control) { | |
307 | HttpHdrScTarget *sctusable = | |
308 | httpHdrScGetMergedTarget(reply->surrogate_control, | |
309 | Config.Accel.surrogate_id); | |
310 | ||
311 | if (sctusable) { | |
312 | if (EBIT_TEST(sctusable->mask, SC_NO_STORE) || | |
313 | (Config.onoff.surrogate_is_remote | |
314 | && EBIT_TEST(sctusable->mask, SC_NO_STORE_REMOTE))) { | |
315 | surrogateNoStore = true; | |
5ed72359 | 316 | entry->makePrivate(); |
43ae1d95 | 317 | } |
318 | ||
319 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
320 | * accelerated request or not... | |
321 | * Still, this is an abtraction breach. - RC | |
322 | */ | |
323 | if (sctusable->max_age != -1) { | |
324 | if (sctusable->max_age < sctusable->max_stale) | |
325 | reply->expires = reply->date + sctusable->max_age; | |
326 | else | |
327 | reply->expires = reply->date + sctusable->max_stale; | |
328 | ||
329 | /* And update the timestamps */ | |
3900307b | 330 | entry->timestampsSet(); |
43ae1d95 | 331 | } |
332 | ||
333 | /* We ignore cache-control directives as per the Surrogate specification */ | |
334 | ignoreCacheControl = true; | |
335 | ||
336 | httpHdrScTargetDestroy(sctusable); | |
337 | } | |
338 | } | |
339 | ||
340 | #endif | |
341 | } | |
342 | ||
924f73bc | 343 | int |
344 | HttpStateData::cacheableReply() | |
c54e9052 | 345 | { |
585ab260 | 346 | HttpReply const *rep = finalReply(); |
528b2c61 | 347 | HttpHeader const *hdr = &rep->header; |
d8b249ef | 348 | const int cc_mask = (rep->cache_control) ? rep->cache_control->mask : 0; |
c68e9c6b | 349 | const char *v; |
38f9c547 | 350 | #if HTTP_VIOLATIONS |
62e76326 | 351 | |
38f9c547 | 352 | const refresh_t *R = NULL; |
b6445726 | 353 | |
346be6ad | 354 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 355 | * and then checks if the specified flag is set. The main purpose |
356 | * of this is to simplify the refresh pattern lookup and HTTP_VIOLATIONS | |
357 | * condition | |
358 | */ | |
359 | #define REFRESH_OVERRIDE(flag) \ | |
5f8252d2 | 360 | ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \ |
361 | (R && R->flags.flag)) | |
b445957e | 362 | #else |
363 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 364 | #endif |
43ae1d95 | 365 | |
38f9c547 | 366 | if (surrogateNoStore) |
62e76326 | 367 | return 0; |
368 | ||
924f73bc | 369 | if (!ignoreCacheControl) { |
38f9c547 | 370 | if (EBIT_TEST(cc_mask, CC_PRIVATE)) { |
b6445726 | 371 | if (!REFRESH_OVERRIDE(ignore_private)) |
38f9c547 | 372 | return 0; |
373 | } | |
374 | ||
375 | if (EBIT_TEST(cc_mask, CC_NO_CACHE)) { | |
b6445726 | 376 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 377 | return 0; |
378 | } | |
379 | ||
380 | if (EBIT_TEST(cc_mask, CC_NO_STORE)) { | |
b6445726 | 381 | if (!REFRESH_OVERRIDE(ignore_no_store)) |
38f9c547 | 382 | return 0; |
383 | } | |
43ae1d95 | 384 | } |
385 | ||
d67acb4e | 386 | if (request->flags.auth || request->flags.auth_sent) { |
62e76326 | 387 | /* |
388 | * Responses to requests with authorization may be cached | |
389 | * only if a Cache-Control: public reply header is present. | |
390 | * RFC 2068, sec 14.9.4 | |
391 | */ | |
392 | ||
38f9c547 | 393 | if (!EBIT_TEST(cc_mask, CC_PUBLIC)) { |
b6445726 | 394 | if (!REFRESH_OVERRIDE(ignore_auth)) |
38f9c547 | 395 | return 0; |
396 | } | |
a6dfe2d9 | 397 | } |
62e76326 | 398 | |
c68e9c6b | 399 | /* Pragma: no-cache in _replies_ is not documented in HTTP, |
400 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
a9925b40 | 401 | if (hdr->has(HDR_PRAGMA)) { |
30abd221 | 402 | String s = hdr->getList(HDR_PRAGMA); |
62e76326 | 403 | const int no_cache = strListIsMember(&s, "no-cache", ','); |
30abd221 | 404 | s.clean(); |
62e76326 | 405 | |
38f9c547 | 406 | if (no_cache) { |
b6445726 | 407 | if (!REFRESH_OVERRIDE(ignore_no_cache)) |
38f9c547 | 408 | return 0; |
409 | } | |
c68e9c6b | 410 | } |
62e76326 | 411 | |
c68e9c6b | 412 | /* |
413 | * The "multipart/x-mixed-replace" content type is used for | |
414 | * continuous push replies. These are generally dynamic and | |
415 | * probably should not be cachable | |
416 | */ | |
a9925b40 | 417 | if ((v = hdr->getStr(HDR_CONTENT_TYPE))) |
62e76326 | 418 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
419 | return 0; | |
420 | ||
585ab260 | 421 | switch (rep->sline.status) { |
62e76326 | 422 | /* Responses that are cacheable */ |
423 | ||
19a04dac | 424 | case HTTP_OK: |
62e76326 | 425 | |
19a04dac | 426 | case HTTP_NON_AUTHORITATIVE_INFORMATION: |
62e76326 | 427 | |
19a04dac | 428 | case HTTP_MULTIPLE_CHOICES: |
62e76326 | 429 | |
19a04dac | 430 | case HTTP_MOVED_PERMANENTLY: |
62e76326 | 431 | |
19a04dac | 432 | case HTTP_GONE: |
62e76326 | 433 | /* |
434 | * Don't cache objects that need to be refreshed on next request, | |
435 | * unless we know how to refresh it. | |
436 | */ | |
437 | ||
1b5358c3 | 438 | if (!refreshIsCachable(entry)) { |
bf8fe701 | 439 | debugs(22, 3, "refreshIsCachable() returned non-cacheable.."); |
62e76326 | 440 | return 0; |
fc68f6b1 | 441 | } |
62e76326 | 442 | |
443 | /* don't cache objects from peers w/o LMT, Date, or Expires */ | |
444 | /* check that is it enough to check headers @?@ */ | |
445 | if (rep->date > -1) | |
446 | return 1; | |
447 | else if (rep->last_modified > -1) | |
448 | return 1; | |
924f73bc | 449 | else if (!_peer) |
62e76326 | 450 | return 1; |
451 | ||
452 | /* @?@ (here and 302): invalid expires header compiles to squid_curtime */ | |
453 | else if (rep->expires > -1) | |
454 | return 1; | |
455 | else | |
456 | return 0; | |
457 | ||
458 | /* NOTREACHED */ | |
459 | break; | |
460 | ||
461 | /* Responses that only are cacheable if the server says so */ | |
462 | ||
19a04dac | 463 | case HTTP_MOVED_TEMPORARILY: |
f18c86fd | 464 | case HTTP_TEMPORARY_REDIRECT: |
6a2bf8f4 | 465 | if (rep->expires > rep->date && rep->date > 0) |
62e76326 | 466 | return 1; |
467 | else | |
468 | return 0; | |
469 | ||
470 | /* NOTREACHED */ | |
471 | break; | |
472 | ||
473 | /* Errors can be negatively cached */ | |
474 | ||
19a04dac | 475 | case HTTP_NO_CONTENT: |
62e76326 | 476 | |
19a04dac | 477 | case HTTP_USE_PROXY: |
62e76326 | 478 | |
19a04dac | 479 | case HTTP_BAD_REQUEST: |
62e76326 | 480 | |
19a04dac | 481 | case HTTP_FORBIDDEN: |
62e76326 | 482 | |
19a04dac | 483 | case HTTP_NOT_FOUND: |
62e76326 | 484 | |
19a04dac | 485 | case HTTP_METHOD_NOT_ALLOWED: |
62e76326 | 486 | |
19a04dac | 487 | case HTTP_REQUEST_URI_TOO_LARGE: |
62e76326 | 488 | |
19a04dac | 489 | case HTTP_INTERNAL_SERVER_ERROR: |
62e76326 | 490 | |
19a04dac | 491 | case HTTP_NOT_IMPLEMENTED: |
62e76326 | 492 | |
19a04dac | 493 | case HTTP_BAD_GATEWAY: |
62e76326 | 494 | |
19a04dac | 495 | case HTTP_SERVICE_UNAVAILABLE: |
62e76326 | 496 | |
19a04dac | 497 | case HTTP_GATEWAY_TIMEOUT: |
62e76326 | 498 | return -1; |
499 | ||
500 | /* NOTREACHED */ | |
501 | break; | |
502 | ||
503 | /* Some responses can never be cached */ | |
504 | ||
0cdcddb9 | 505 | case HTTP_PARTIAL_CONTENT: /* Not yet supported */ |
62e76326 | 506 | |
19a04dac | 507 | case HTTP_SEE_OTHER: |
62e76326 | 508 | |
19a04dac | 509 | case HTTP_NOT_MODIFIED: |
62e76326 | 510 | |
19a04dac | 511 | case HTTP_UNAUTHORIZED: |
62e76326 | 512 | |
19a04dac | 513 | case HTTP_PROXY_AUTHENTICATION_REQUIRED: |
62e76326 | 514 | |
0cdcddb9 | 515 | case HTTP_INVALID_HEADER: /* Squid header parsing error */ |
4eb368f9 | 516 | |
517 | case HTTP_HEADER_TOO_LARGE: | |
b004a7fc | 518 | |
519 | case HTTP_PAYMENT_REQUIRED: | |
520 | case HTTP_NOT_ACCEPTABLE: | |
521 | case HTTP_REQUEST_TIMEOUT: | |
522 | case HTTP_CONFLICT: | |
523 | case HTTP_LENGTH_REQUIRED: | |
524 | case HTTP_PRECONDITION_FAILED: | |
525 | case HTTP_REQUEST_ENTITY_TOO_LARGE: | |
526 | case HTTP_UNSUPPORTED_MEDIA_TYPE: | |
527 | case HTTP_UNPROCESSABLE_ENTITY: | |
528 | case HTTP_LOCKED: | |
529 | case HTTP_FAILED_DEPENDENCY: | |
530 | case HTTP_INSUFFICIENT_STORAGE: | |
cc7c3c84 | 531 | case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE: |
532 | case HTTP_EXPECTATION_FAILED: | |
b004a7fc | 533 | |
62e76326 | 534 | return 0; |
535 | ||
c54e9052 | 536 | default: /* Unknown status code */ |
585ab260 | 537 | debugs (11, 0, HERE << "HttpStateData::cacheableReply: unexpected http status code " << rep->sline.status); |
62e76326 | 538 | |
539 | return 0; | |
540 | ||
541 | /* NOTREACHED */ | |
542 | break; | |
c54e9052 | 543 | } |
62e76326 | 544 | |
79d39a72 | 545 | /* NOTREACHED */ |
c54e9052 | 546 | } |
090089c4 | 547 | |
f66a9ef4 | 548 | /* |
9e008dda | 549 | * For Vary, store the relevant request headers as |
f66a9ef4 | 550 | * virtual headers in the reply |
551 | * Returns false if the variance cannot be stored | |
552 | */ | |
553 | const char * | |
190154cf | 554 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) |
f66a9ef4 | 555 | { |
30abd221 | 556 | String vary, hdr; |
f66a9ef4 | 557 | const char *pos = NULL; |
558 | const char *item; | |
559 | const char *value; | |
560 | int ilen; | |
30abd221 | 561 | static String vstr; |
f66a9ef4 | 562 | |
30abd221 | 563 | vstr.clean(); |
a9925b40 | 564 | vary = reply->header.getList(HDR_VARY); |
62e76326 | 565 | |
f66a9ef4 | 566 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 567 | char *name = (char *)xmalloc(ilen + 1); |
568 | xstrncpy(name, item, ilen + 1); | |
569 | Tolower(name); | |
9776e3cc | 570 | |
571 | if (strcmp(name, "*") == 0) { | |
572 | /* Can not handle "Vary: *" withtout ETag support */ | |
573 | safe_free(name); | |
30abd221 | 574 | vstr.clean(); |
9776e3cc | 575 | break; |
576 | } | |
577 | ||
62e76326 | 578 | strListAdd(&vstr, name, ','); |
a9925b40 | 579 | hdr = request->header.getByName(name); |
62e76326 | 580 | safe_free(name); |
30abd221 | 581 | value = hdr.buf(); |
62e76326 | 582 | |
583 | if (value) { | |
584 | value = rfc1738_escape_part(value); | |
585 | vstr.append("=\"", 2); | |
586 | vstr.append(value); | |
587 | vstr.append("\"", 1); | |
588 | } | |
589 | ||
30abd221 | 590 | hdr.clean(); |
f66a9ef4 | 591 | } |
62e76326 | 592 | |
30abd221 | 593 | vary.clean(); |
f66a9ef4 | 594 | #if X_ACCELERATOR_VARY |
62e76326 | 595 | |
aa38be4a | 596 | pos = NULL; |
a9925b40 | 597 | vary = reply->header.getList(HDR_X_ACCELERATOR_VARY); |
62e76326 | 598 | |
f66a9ef4 | 599 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
62e76326 | 600 | char *name = (char *)xmalloc(ilen + 1); |
601 | xstrncpy(name, item, ilen + 1); | |
602 | Tolower(name); | |
603 | strListAdd(&vstr, name, ','); | |
a9925b40 | 604 | hdr = request->header.getByName(name); |
62e76326 | 605 | safe_free(name); |
30abd221 | 606 | value = hdr.buf(); |
62e76326 | 607 | |
608 | if (value) { | |
609 | value = rfc1738_escape_part(value); | |
610 | vstr.append("=\"", 2); | |
611 | vstr.append(value); | |
612 | vstr.append("\"", 1); | |
613 | } | |
614 | ||
30abd221 | 615 | hdr.clean(); |
f66a9ef4 | 616 | } |
62e76326 | 617 | |
30abd221 | 618 | vary.clean(); |
f66a9ef4 | 619 | #endif |
62e76326 | 620 | |
30abd221 | 621 | debugs(11, 3, "httpMakeVaryMark: " << vstr.buf()); |
622 | return vstr.buf(); | |
f66a9ef4 | 623 | } |
624 | ||
2afaba07 | 625 | void |
626 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
627 | { | |
628 | if (flags.keepalive) | |
629 | if (_peer) | |
630 | _peer->stats.n_keepalives_sent++; | |
631 | ||
632 | if (reply->keep_alive) { | |
633 | if (_peer) | |
634 | _peer->stats.n_keepalives_recv++; | |
635 | ||
7dc5c309 AJ |
636 | if (Config.onoff.detect_broken_server_pconns |
637 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
bf8fe701 | 638 | debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
639 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); | |
2afaba07 | 640 | flags.keepalive_broken = 1; |
641 | } | |
642 | } | |
643 | } | |
644 | ||
645 | void | |
646 | HttpStateData::checkDateSkew(HttpReply *reply) | |
647 | { | |
648 | if (reply->date > -1 && !_peer) { | |
649 | int skew = abs((int)(reply->date - squid_curtime)); | |
650 | ||
651 | if (skew > 86400) | |
cc192b50 | 652 | debugs(11, 3, "" << request->GetHost() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 653 | } |
654 | } | |
655 | ||
073ba374 | 656 | /** |
4eb368f9 | 657 | * This creates the error page itself.. its likely |
658 | * that the forward ported reply header max size patch | |
659 | * generates non http conformant error pages - in which | |
660 | * case the errors where should be 'BAD_GATEWAY' etc | |
661 | */ | |
b8d8561b | 662 | void |
2afaba07 | 663 | HttpStateData::processReplyHeader() |
f5558c95 | 664 | { |
073ba374 | 665 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
82384411 | 666 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
bf8fe701 | 667 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 668 | |
1a98175f | 669 | assert(!flags.headers_parsed); |
62e76326 | 670 | |
2afaba07 | 671 | http_status error = HTTP_STATUS_NONE; |
62e76326 | 672 | |
585ab260 | 673 | HttpReply *newrep = new HttpReply; |
4a56ee8d | 674 | const bool parsed = newrep->parse(readBuf, eof, &error); |
62e76326 | 675 | |
9e008dda AJ |
676 | if (!parsed && readBuf->contentSize() > 5 && strncmp(readBuf->content(), "HTTP/", 5) != 0) { |
677 | MemBuf *mb; | |
678 | HttpReply *tmprep = new HttpReply; | |
679 | tmprep->sline.version = HttpVersion(1, 0); | |
680 | tmprep->sline.status = HTTP_OK; | |
681 | tmprep->header.putTime(HDR_DATE, squid_curtime); | |
682 | tmprep->header.putExt("X-Transformed-From", "HTTP/0.9"); | |
683 | mb = tmprep->pack(); | |
684 | newrep->parse(mb, eof, &error); | |
685 | delete tmprep; | |
686 | } else { | |
687 | if (!parsed && error > 0) { // unrecoverable parsing error | |
688 | debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf->content() << "'"); | |
689 | flags.headers_parsed = 1; | |
690 | newrep->sline.version = HttpVersion(1, 0); | |
691 | newrep->sline.status = error; | |
692 | HttpReply *vrep = setVirginReply(newrep); | |
693 | entry->replaceHttpReply(vrep); | |
694 | ctx_exit(ctx); | |
695 | return; | |
696 | } | |
697 | ||
698 | if (!parsed) { // need more data | |
699 | assert(!error); | |
700 | assert(!eof); | |
701 | delete newrep; | |
702 | ctx_exit(ctx); | |
703 | return; | |
704 | } | |
705 | ||
706 | debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------"); | |
707 | ||
708 | header_bytes_read = headersEnd(readBuf->content(), readBuf->contentSize()); | |
709 | readBuf->consume(header_bytes_read); | |
f5558c95 | 710 | } |
62e76326 | 711 | |
af0bb8e5 | 712 | flags.chunked = 0; |
713 | if (newrep->header.hasListMember(HDR_TRANSFER_ENCODING, "chunked", ',')) { | |
9e008dda AJ |
714 | flags.chunked = 1; |
715 | httpChunkDecoder = new ChunkedCodingParser; | |
af0bb8e5 | 716 | } |
717 | ||
9e008dda AJ |
718 | if (!peerSupportsConnectionPinning()) |
719 | orig_request->flags.connection_auth_disabled = 1; | |
d67acb4e | 720 | |
585ab260 | 721 | HttpReply *vrep = setVirginReply(newrep); |
6965ab28 | 722 | flags.headers_parsed = 1; |
723 | ||
585ab260 | 724 | keepaliveAccounting(vrep); |
47ac2ebe | 725 | |
585ab260 | 726 | checkDateSkew(vrep); |
47ac2ebe | 727 | |
585ab260 | 728 | processSurrogateControl (vrep); |
528b2c61 | 729 | |
073ba374 | 730 | /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header |
528b2c61 | 731 | * Parse the header and remove all referenced headers |
732 | */ | |
733 | ||
2afaba07 | 734 | ctx_exit(ctx); |
7dc79973 | 735 | |
2afaba07 | 736 | } |
737 | ||
d67acb4e AJ |
738 | /** |
739 | * returns true if the peer can support connection pinning | |
740 | */ | |
741 | bool HttpStateData::peerSupportsConnectionPinning() const | |
742 | { | |
743 | const HttpReply *rep = entry->mem_obj->getReply(); | |
744 | const HttpHeader *hdr = &rep->header; | |
745 | bool rc; | |
746 | String header; | |
747 | ||
748 | if (!_peer) | |
9e008dda AJ |
749 | return true; |
750 | ||
751 | /*If this peer does not support connection pinning (authenticated | |
d67acb4e AJ |
752 | connections) return false |
753 | */ | |
754 | if (!_peer->connection_auth) | |
9e008dda | 755 | return false; |
d67acb4e | 756 | |
9e008dda | 757 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
758 | is not unauthorized, so the related connection can be pinned |
759 | */ | |
760 | if (rep->sline.status != HTTP_UNAUTHORIZED) | |
9e008dda AJ |
761 | return true; |
762 | ||
763 | /*The server respond with HTTP_UNAUTHORIZED and the peer configured | |
764 | with "connection-auth=on" we know that the peer supports pinned | |
d67acb4e AJ |
765 | connections |
766 | */ | |
767 | if (_peer->connection_auth == 1) | |
9e008dda | 768 | return true; |
d67acb4e | 769 | |
9e008dda AJ |
770 | /*At this point peer has configured with "connection-auth=auto" |
771 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
772 | to allow pinned connections or not |
773 | */ | |
774 | ||
9e008dda | 775 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
776 | pinning (squid 2.6 behaviour) |
777 | */ | |
778 | if (_peer->options.originserver) | |
9e008dda | 779 | return true; |
d67acb4e AJ |
780 | |
781 | /*if the connections it is already pinned it is OK*/ | |
782 | if (request->flags.pinned) | |
9e008dda AJ |
783 | return true; |
784 | ||
785 | /*Allow pinned connections only if the Proxy-support header exists in | |
786 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
787 | which means that the peer supports connection pinning. |
788 | */ | |
789 | if (!hdr->has(HDR_PROXY_SUPPORT)) | |
9e008dda | 790 | return false; |
d67acb4e AJ |
791 | |
792 | header = hdr->getStrOrList(HDR_PROXY_SUPPORT); | |
793 | /* XXX This ought to be done in a case-insensitive manner */ | |
794 | rc = (strstr(header.buf(), "Session-Based-Authentication") != NULL); | |
795 | ||
796 | return rc; | |
797 | } | |
798 | ||
5f8252d2 | 799 | // Called when we parsed (and possibly adapted) the headers but |
800 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 801 | void |
802 | HttpStateData::haveParsedReplyHeaders() | |
803 | { | |
c1520b67 AJ |
804 | ServerStateData::haveParsedReplyHeaders(); |
805 | ||
2afaba07 | 806 | Ctx ctx = ctx_enter(entry->mem_obj->url); |
585ab260 | 807 | HttpReply *rep = finalReply(); |
2afaba07 | 808 | |
585ab260 | 809 | if (rep->sline.status == HTTP_PARTIAL_CONTENT && |
810 | rep->content_range) | |
811 | currentOffset = rep->content_range->spec.offset; | |
62e76326 | 812 | |
3900307b | 813 | entry->timestampsSet(); |
62e76326 | 814 | |
9bc73deb | 815 | /* Check if object is cacheable or not based on reply code */ |
585ab260 | 816 | debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep->sline.status); |
62e76326 | 817 | |
9bc73deb | 818 | if (neighbors_do_private_keys) |
585ab260 | 819 | httpMaybeRemovePublic(entry, rep->sline.status); |
e6ccf245 | 820 | |
585ab260 | 821 | if (rep->header.has(HDR_VARY) |
f66a9ef4 | 822 | #if X_ACCELERATOR_VARY |
585ab260 | 823 | || rep->header.has(HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 824 | #endif |
4b44c907 | 825 | ) { |
585ab260 | 826 | const char *vary = httpMakeVaryMark(orig_request, rep); |
4b44c907 | 827 | |
828 | if (!vary) { | |
5ed72359 | 829 | entry->makePrivate(); |
4b44c907 | 830 | goto no_cache; |
831 | ||
62e76326 | 832 | } |
833 | ||
4b44c907 | 834 | entry->mem_obj->vary_headers = xstrdup(vary); |
835 | } | |
836 | ||
2afaba07 | 837 | #if WIP_FWD_LOG |
838 | fwdStatus(fwd, s); | |
839 | ||
840 | #endif | |
841 | /* | |
842 | * If its not a reply that we will re-forward, then | |
843 | * allow the client to get it. | |
844 | */ | |
585ab260 | 845 | if (!fwd->reforwardableStatus(rep->sline.status)) |
2afaba07 | 846 | EBIT_CLR(entry->flags, ENTRY_FWD_HDR_WAIT); |
847 | ||
4b44c907 | 848 | switch (cacheableReply()) { |
849 | ||
850 | case 1: | |
5ed72359 | 851 | entry->makePublic(); |
62e76326 | 852 | break; |
853 | ||
9bc73deb | 854 | case 0: |
5ed72359 | 855 | entry->makePrivate(); |
62e76326 | 856 | break; |
857 | ||
9bc73deb | 858 | case -1: |
4b44c907 | 859 | |
ac9cc053 | 860 | #if HTTP_VIOLATIONS |
4b44c907 | 861 | if (Config.negativeTtl > 0) |
5ed72359 | 862 | entry->cacheNegatively(); |
4b44c907 | 863 | else |
ac9cc053 | 864 | #endif |
5ed72359 | 865 | entry->makePrivate(); |
4b44c907 | 866 | |
62e76326 | 867 | break; |
868 | ||
9bc73deb | 869 | default: |
62e76326 | 870 | assert(0); |
4b44c907 | 871 | |
62e76326 | 872 | break; |
9bc73deb | 873 | } |
62e76326 | 874 | |
4b44c907 | 875 | no_cache: |
876 | ||
585ab260 | 877 | if (!ignoreCacheControl && rep->cache_control) { |
878 | if (EBIT_TEST(rep->cache_control->mask, CC_PROXY_REVALIDATE)) | |
62e76326 | 879 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
585ab260 | 880 | else if (EBIT_TEST(rep->cache_control->mask, CC_MUST_REVALIDATE)) |
62e76326 | 881 | EBIT_SET(entry->flags, ENTRY_REVALIDATE); |
9bc73deb | 882 | } |
62e76326 | 883 | |
c3609322 | 884 | #if HEADERS_LOG |
585ab260 | 885 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 886 | |
c3609322 | 887 | #endif |
5f8252d2 | 888 | |
889 | ctx_exit(ctx); | |
f5558c95 | 890 | } |
891 | ||
528b2c61 | 892 | HttpStateData::ConnectionStatus |
893 | HttpStateData::statusIfComplete() const | |
603a02fd | 894 | { |
585ab260 | 895 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
896 | /** \par |
897 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 898 | |
2afaba07 | 899 | if (httpHeaderHasConnDir(&rep->header, "close")) |
62e76326 | 900 | return COMPLETE_NONPERSISTENT_MSG; |
901 | ||
073ba374 AJ |
902 | /** \par |
903 | * If we didn't send a keep-alive request header, then this | |
978e455f | 904 | * can not be a persistent connection. |
905 | */ | |
528b2c61 | 906 | if (!flags.keepalive) |
62e76326 | 907 | return COMPLETE_NONPERSISTENT_MSG; |
908 | ||
073ba374 | 909 | /** \par |
72b63f06 | 910 | * If we haven't sent the whole request then this can not be a persistent |
911 | * connection. | |
912 | */ | |
913 | if (!flags.request_sent) { | |
60745f24 | 914 | debugs(11, 1, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(orig_request->method) << " " << entry->url() << "\"" ); |
72b63f06 | 915 | return COMPLETE_NONPERSISTENT_MSG; |
916 | } | |
917 | ||
073ba374 | 918 | /** \par |
9f5a2895 | 919 | * What does the reply have to say about keep-alive? |
920 | */ | |
073ba374 AJ |
921 | /** |
922 | \bug XXX BUG? | |
b6a2f15e | 923 | * If the origin server (HTTP/1.0) does not send a keep-alive |
924 | * header, but keeps the connection open anyway, what happens? | |
925 | * We'll return here and http.c waits for an EOF before changing | |
926 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
927 | * and an error status code, and we might have to wait until | |
928 | * the server times out the socket. | |
929 | */ | |
2afaba07 | 930 | if (!rep->keep_alive) |
528b2c61 | 931 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 932 | |
528b2c61 | 933 | return COMPLETE_PERSISTENT_MSG; |
934 | } | |
935 | ||
936 | HttpStateData::ConnectionStatus | |
937 | HttpStateData::persistentConnStatus() const | |
938 | { | |
ba82c452 | 939 | debugs(11, 3, "persistentConnStatus: FD " << fd << " eof=" << eof); |
585ab260 | 940 | const HttpReply *vrep = virginReply(); |
941 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
62e76326 | 942 | |
5f8252d2 | 943 | /* If we haven't seen the end of reply headers, we are not done */ |
bf8fe701 | 944 | debugs(11, 5, "persistentConnStatus: flags.headers_parsed=" << flags.headers_parsed); |
fc68f6b1 | 945 | |
1a98175f | 946 | if (!flags.headers_parsed) |
62e76326 | 947 | return INCOMPLETE_MSG; |
948 | ||
839291ac AJ |
949 | if (eof) // already reached EOF |
950 | return COMPLETE_NONPERSISTENT_MSG; | |
951 | ||
9035d1d5 AJ |
952 | /** \par |
953 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 954 | * sure about the end of response, so we are calling the statusIfComplete to |
9e008dda | 955 | * decide if we can be persistant |
af0bb8e5 | 956 | */ |
839291ac | 957 | if (lastChunk && flags.chunked) |
9e008dda | 958 | return statusIfComplete(); |
af0bb8e5 | 959 | |
47f6e231 | 960 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 961 | |
bf8fe701 | 962 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 963 | |
35282fbf | 964 | /* If the body size is unknown we must wait for EOF */ |
965 | if (clen < 0) | |
62e76326 | 966 | return INCOMPLETE_MSG; |
967 | ||
9035d1d5 AJ |
968 | /** \par |
969 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 970 | if (clen > 0) { |
971 | // old technique: | |
585ab260 | 972 | // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz) |
47f6e231 | 973 | const int64_t body_bytes_read = reply_bytes_read - header_bytes_read; |
5f8252d2 | 974 | debugs(11,5, "persistentConnStatus: body_bytes_read=" << |
585ab260 | 975 | body_bytes_read << " content_length=" << vrep->content_length); |
2afaba07 | 976 | |
585ab260 | 977 | if (body_bytes_read < vrep->content_length) |
5f8252d2 | 978 | return INCOMPLETE_MSG; |
979 | } | |
62e76326 | 980 | |
9035d1d5 AJ |
981 | /** \par |
982 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 983 | return statusIfComplete(); |
603a02fd | 984 | } |
090089c4 | 985 | |
2afaba07 | 986 | /* |
987 | * This is the callback after some data has been read from the network | |
988 | */ | |
dc56a9b1 | 989 | /* |
e5ee81f0 | 990 | void |
991 | HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data) | |
c4b7a5a9 | 992 | { |
993 | HttpStateData *httpState = static_cast<HttpStateData *>(data); | |
7194987f | 994 | assert (fd == httpState->fd); |
2afaba07 | 995 | // assert(buf == readBuf->content()); |
1d5161bd | 996 | PROF_start(HttpStateData_readReply); |
2afaba07 | 997 | httpState->readReply (len, flag, xerrno); |
1d5161bd | 998 | PROF_stop(HttpStateData_readReply); |
c4b7a5a9 | 999 | } |
dc56a9b1 | 1000 | */ |
073ba374 | 1001 | |
2afdbf48 | 1002 | /* XXX this function is too long! */ |
c4b7a5a9 | 1003 | void |
dc56a9b1 | 1004 | HttpStateData::readReply (const CommIoCbParams &io) |
090089c4 | 1005 | { |
30a4f2a8 | 1006 | int bin; |
090089c4 | 1007 | int clen; |
dc56a9b1 | 1008 | int len = io.size; |
c4b7a5a9 | 1009 | |
dc56a9b1 | 1010 | assert(fd == io.fd); |
1011 | ||
1012 | flags.do_next_read = 0; | |
9e008dda | 1013 | |
7a7cc03f | 1014 | debugs(11, 5, "httpReadReply: FD " << fd << ": len " << len << "."); |
62e76326 | 1015 | |
7a7cc03f | 1016 | // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us |
dc56a9b1 | 1017 | if (io.flag == COMM_ERR_CLOSING) { |
bf8fe701 | 1018 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1019 | return; |
1020 | } | |
1021 | ||
e92e4e44 | 1022 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
5f8252d2 | 1023 | maybeReadVirginBody(); |
62e76326 | 1024 | return; |
e92e4e44 | 1025 | } |
c4b7a5a9 | 1026 | |
fdf55365 | 1027 | // handle I/O errors |
dc56a9b1 | 1028 | if (io.flag != COMM_OK || len < 0) { |
7a7cc03f | 1029 | debugs(11, 2, "httpReadReply: FD " << fd << ": read failure: " << xstrerror() << "."); |
fdf55365 | 1030 | |
dc56a9b1 | 1031 | if (ignoreErrno(io.xerrno)) { |
fdf55365 | 1032 | flags.do_next_read = 1; |
1033 | } else { | |
1034 | ErrorState *err; | |
1035 | err = errorCon(ERR_READ_ERROR, HTTP_BAD_GATEWAY, fwd->request); | |
dc56a9b1 | 1036 | err->xerrno = io.xerrno; |
fdf55365 | 1037 | fwd->fail(err); |
1038 | flags.do_next_read = 0; | |
1039 | comm_close(fd); | |
1040 | } | |
1041 | ||
1042 | return; | |
1043 | } | |
1044 | ||
7a7cc03f | 1045 | // update I/O stats |
fdf55365 | 1046 | if (len > 0) { |
2afaba07 | 1047 | readBuf->appended(len); |
5f8252d2 | 1048 | reply_bytes_read += len; |
447e176b | 1049 | #if DELAY_POOLS |
2afaba07 | 1050 | |
1051 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); | |
62e76326 | 1052 | delayId.bytesIn(len); |
447e176b | 1053 | #endif |
62e76326 | 1054 | |
1055 | kb_incr(&statCounter.server.all.kbytes_in, len); | |
1056 | kb_incr(&statCounter.server.http.kbytes_in, len); | |
62e76326 | 1057 | IOStats.Http.reads++; |
1058 | ||
1059 | for (clen = len - 1, bin = 0; clen; bin++) | |
1060 | clen >>= 1; | |
1061 | ||
1062 | IOStats.Http.read_hist[bin]++; | |
30a4f2a8 | 1063 | } |
62e76326 | 1064 | |
073ba374 AJ |
1065 | /** \par |
1066 | * Here the RFC says we should ignore whitespace between replies, but we can't as | |
5fa061b8 | 1067 | * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition |
1068 | * the response splitting countermeasures is extremely likely to trigger on this, | |
1069 | * not allowing connection reuse in the first place. | |
1070 | */ | |
1071 | #if DONT_DO_THIS | |
fdf55365 | 1072 | if (!flags.headers_parsed && len > 0 && fd_table[fd].uses > 1) { |
5fa061b8 | 1073 | /* Skip whitespace between replies */ |
62e76326 | 1074 | |
e4755e29 | 1075 | while (len > 0 && xisspace(*buf)) |
62e76326 | 1076 | xmemmove(buf, buf + 1, len--); |
1077 | ||
1078 | if (len == 0) { | |
1079 | /* Continue to read... */ | |
21b92762 | 1080 | /* Timeout NOT increased. This whitespace was from previous reply */ |
f61f0107 | 1081 | flags.do_next_read = 1; |
5f8252d2 | 1082 | maybeReadVirginBody(); |
62e76326 | 1083 | return; |
1084 | } | |
5ede6c8f | 1085 | } |
62e76326 | 1086 | |
5fa061b8 | 1087 | #endif |
1088 | ||
ba82c452 | 1089 | if (len == 0) { // reached EOF? |
62e76326 | 1090 | eof = 1; |
f61f0107 | 1091 | flags.do_next_read = 0; |
ba82c452 | 1092 | } |
62e76326 | 1093 | |
ba82c452 | 1094 | if (!flags.headers_parsed) { // have not parsed headers yet? |
1095 | PROF_start(HttpStateData_processReplyHeader); | |
1096 | processReplyHeader(); | |
1097 | PROF_stop(HttpStateData_processReplyHeader); | |
1098 | ||
1099 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1100 | return; // TODO: send errors to ICAP | |
1101 | ||
585ab260 | 1102 | adaptOrFinalizeReply(); |
ba82c452 | 1103 | } |
1104 | ||
1105 | // kick more reads if needed and/or process the response body, if any | |
1106 | PROF_start(HttpStateData_processReplyBody); | |
1107 | processReplyBody(); // may call serverComplete() | |
1108 | PROF_stop(HttpStateData_processReplyBody); | |
1109 | } | |
1110 | ||
073ba374 AJ |
1111 | /** |
1112 | \retval true if we can continue with processing the body or doing ICAP. | |
1113 | */ | |
ba82c452 | 1114 | bool |
1115 | HttpStateData::continueAfterParsingHeader() | |
1116 | { | |
073ba374 | 1117 | if (!flags.headers_parsed && !eof) { |
ba82c452 | 1118 | debugs(11, 9, HERE << "needs more at " << readBuf->contentSize()); |
1119 | flags.do_next_read = 1; | |
073ba374 AJ |
1120 | /** \retval false If we have not finished parsing the headers and may get more data. |
1121 | * Schedules more reads to retrieve the missing data. | |
1122 | */ | |
ba82c452 | 1123 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1124 | return false; |
ba82c452 | 1125 | } |
1126 | ||
073ba374 | 1127 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1128 | |
1129 | err_type error = ERR_NONE; | |
1130 | ||
1131 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1132 | // check for header parsing errors | |
585ab260 | 1133 | if (HttpReply *vrep = virginReply()) { |
1134 | const http_status s = vrep->sline.status; | |
1135 | const HttpVersion &v = vrep->sline.version; | |
ba82c452 | 1136 | if (s == HTTP_INVALID_HEADER && v != HttpVersion(0,9)) { |
1137 | error = ERR_INVALID_RESP; | |
1138 | } else | |
9e008dda AJ |
1139 | if (s == HTTP_HEADER_TOO_LARGE) { |
1140 | fwd->dontRetry(true); | |
1141 | error = ERR_TOO_BIG; | |
1142 | } else { | |
1143 | return true; // done parsing, got reply, and no error | |
1144 | } | |
ba82c452 | 1145 | } else { |
1146 | // parsed headers but got no reply | |
1147 | error = ERR_INVALID_RESP; | |
62e76326 | 1148 | } |
090089c4 | 1149 | } else { |
ba82c452 | 1150 | assert(eof); |
1151 | error = readBuf->hasContent() ? | |
9e008dda | 1152 | ERR_INVALID_RESP : ERR_ZERO_SIZE_OBJECT; |
2afaba07 | 1153 | } |
ba82c452 | 1154 | |
1155 | assert(error != ERR_NONE); | |
1156 | entry->reset(); | |
1157 | fwd->fail(errorCon(error, HTTP_BAD_GATEWAY, fwd->request)); | |
1158 | flags.do_next_read = 0; | |
1159 | comm_close(fd); | |
1160 | return false; // quit on error | |
2afaba07 | 1161 | } |
1162 | ||
073ba374 | 1163 | /** |
2afaba07 | 1164 | * Call this when there is data from the origin server |
1165 | * which should be sent to either StoreEntry, or to ICAP... | |
1166 | */ | |
1167 | void | |
5f8252d2 | 1168 | HttpStateData::writeReplyBody() |
2afaba07 | 1169 | { |
5f8252d2 | 1170 | const char *data = readBuf->content(); |
1171 | int len = readBuf->contentSize(); | |
bc81cb2b | 1172 | addVirginReplyBody(data, len); |
5f8252d2 | 1173 | readBuf->consume(len); |
af0bb8e5 | 1174 | } |
fc68f6b1 | 1175 | |
af0bb8e5 | 1176 | bool |
1177 | HttpStateData::decodeAndWriteReplyBody() | |
1178 | { | |
1179 | const char *data = NULL; | |
1180 | int len; | |
1181 | bool status = false; | |
1182 | assert(flags.chunked); | |
1183 | assert(httpChunkDecoder); | |
1184 | SQUID_ENTER_THROWING_CODE(); | |
1185 | MemBuf decodedData; | |
1186 | decodedData.init(); | |
1187 | const bool done = httpChunkDecoder->parse(readBuf,&decodedData); | |
1188 | len = decodedData.contentSize(); | |
1189 | data=decodedData.content(); | |
1190 | addVirginReplyBody(data, len); | |
1191 | if (done) { | |
839291ac AJ |
1192 | lastChunk = 1; |
1193 | flags.do_next_read = 0; | |
af0bb8e5 | 1194 | } |
1195 | SQUID_EXIT_THROWING_CODE(status); | |
1196 | return status; | |
e6ccf245 | 1197 | } |
1198 | ||
073ba374 | 1199 | /** |
2afaba07 | 1200 | * processReplyBody has two purposes: |
1201 | * 1 - take the reply body data, if any, and put it into either | |
1202 | * the StoreEntry, or give it over to ICAP. | |
1203 | * 2 - see if we made it to the end of the response (persistent | |
1204 | * connections and such) | |
1205 | */ | |
e6ccf245 | 1206 | void |
2afaba07 | 1207 | HttpStateData::processReplyBody() |
e6ccf245 | 1208 | { |
dc56a9b1 | 1209 | AsyncCall::Pointer call; |
cc192b50 | 1210 | IPAddress client_addr; |
d67acb4e | 1211 | bool ispinned = false; |
fc68f6b1 | 1212 | |
1a98175f | 1213 | if (!flags.headers_parsed) { |
f61f0107 | 1214 | flags.do_next_read = 1; |
5f8252d2 | 1215 | maybeReadVirginBody(); |
62e76326 | 1216 | return; |
528b2c61 | 1217 | } |
62e76326 | 1218 | |
a83c6ed6 AR |
1219 | #if USE_ADAPTATION |
1220 | if (adaptationAccessCheckPending) | |
2afaba07 | 1221 | return; |
fc68f6b1 | 1222 | |
2afaba07 | 1223 | #endif |
62e76326 | 1224 | |
2afaba07 | 1225 | /* |
1226 | * At this point the reply headers have been parsed and consumed. | |
1227 | * That means header content has been removed from readBuf and | |
1228 | * it contains only body data. | |
1229 | */ | |
9e008dda AJ |
1230 | if (flags.chunked) { |
1231 | if (!decodeAndWriteReplyBody()) { | |
1232 | flags.do_next_read = 0; | |
1233 | serverComplete(); | |
1234 | return; | |
1235 | } | |
1236 | } else | |
1237 | writeReplyBody(); | |
528b2c61 | 1238 | |
e6ccf245 | 1239 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
62e76326 | 1240 | /* |
073ba374 | 1241 | * The above writeReplyBody() call could ABORT this entry, |
62e76326 | 1242 | * in that case, the server FD should already be closed. |
1243 | * there's nothing for us to do. | |
1244 | */ | |
1245 | (void) 0; | |
1246 | } else | |
1247 | switch (persistentConnStatus()) { | |
62e76326 | 1248 | case INCOMPLETE_MSG: |
bf8fe701 | 1249 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG"); |
21b92762 | 1250 | /* Wait for more data or EOF condition */ |
21b92762 | 1251 | if (flags.keepalive_broken) { |
9e008dda | 1252 | call = NULL; |
dc56a9b1 | 1253 | commSetTimeout(fd, 10, call); |
21b92762 | 1254 | } else { |
9e008dda | 1255 | call = NULL; |
dc56a9b1 | 1256 | commSetTimeout(fd, Config.Timeout.read, call); |
21b92762 | 1257 | } |
1258 | ||
f61f0107 | 1259 | flags.do_next_read = 1; |
62e76326 | 1260 | break; |
1261 | ||
1262 | case COMPLETE_PERSISTENT_MSG: | |
bf8fe701 | 1263 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG"); |
62e76326 | 1264 | /* yes we have to clear all these! */ |
9e008dda | 1265 | call = NULL; |
dc56a9b1 | 1266 | commSetTimeout(fd, -1, call); |
f61f0107 | 1267 | flags.do_next_read = 0; |
62e76326 | 1268 | |
9e008dda | 1269 | comm_remove_close_handler(fd, closeHandler); |
dc56a9b1 | 1270 | closeHandler = NULL; |
b6b6f466 | 1271 | fwd->unregister(fd); |
fc68f6b1 | 1272 | |
f165d2fb | 1273 | if (orig_request->flags.spoof_client_ip) |
cc192b50 | 1274 | client_addr = orig_request->client_addr; |
fc68f6b1 | 1275 | |
d67acb4e | 1276 | |
9e008dda AJ |
1277 | if (request->flags.pinned) { |
1278 | ispinned = true; | |
1279 | } else if (request->flags.connection_auth && request->flags.auth_sent) { | |
1280 | ispinned = true; | |
1281 | } | |
1282 | ||
1283 | if (orig_request->pinnedConnection() && ispinned) { | |
1284 | orig_request->pinnedConnection()->pinConnection(fd, orig_request, _peer, | |
1285 | (request->flags.connection_auth != 0)); | |
1286 | } else if (_peer) { | |
bd0723ad | 1287 | if (_peer->options.originserver) |
cc192b50 | 1288 | fwd->pconnPush(fd, _peer->name, orig_request->port, orig_request->GetHost(), client_addr); |
bd0723ad | 1289 | else |
fc68f6b1 | 1290 | fwd->pconnPush(fd, _peer->name, _peer->http_port, NULL, client_addr); |
bd0723ad | 1291 | } else { |
cc192b50 | 1292 | fwd->pconnPush(fd, request->GetHost(), request->port, NULL, client_addr); |
bd0723ad | 1293 | } |
1294 | ||
62e76326 | 1295 | fd = -1; |
2afaba07 | 1296 | |
5f8252d2 | 1297 | serverComplete(); |
62e76326 | 1298 | return; |
1299 | ||
1300 | case COMPLETE_NONPERSISTENT_MSG: | |
bf8fe701 | 1301 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG"); |
5f8252d2 | 1302 | serverComplete(); |
62e76326 | 1303 | return; |
1304 | } | |
1305 | ||
5f8252d2 | 1306 | maybeReadVirginBody(); |
c4b7a5a9 | 1307 | } |
1308 | ||
1309 | void | |
5f8252d2 | 1310 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1311 | { |
7dc79973 | 1312 | int read_sz = replyBodySpace(readBuf->spaceSize()); |
2afaba07 | 1313 | |
5f8252d2 | 1314 | debugs(11,9, HERE << (flags.do_next_read ? "may" : "wont") << |
fc68f6b1 | 1315 | " read up to " << read_sz << " bytes from FD " << fd); |
2afaba07 | 1316 | |
1317 | /* | |
1318 | * why <2? Because delayAwareRead() won't actually read if | |
1319 | * you ask it to read 1 byte. The delayed read request | |
1320 | * just gets re-queued until the client side drains, then | |
1321 | * the I/O thread hangs. Better to not register any read | |
1322 | * handler until we get a notification from someone that | |
1323 | * its okay to read again. | |
1324 | */ | |
53dbd8cb | 1325 | if (read_sz < 2) { |
9e008dda AJ |
1326 | if (flags.headers_parsed) |
1327 | return; | |
1328 | else | |
1329 | read_sz = 1024; | |
53dbd8cb | 1330 | } |
2afaba07 | 1331 | |
f61f0107 | 1332 | if (flags.do_next_read) { |
dc56a9b1 | 1333 | flags.do_next_read = 0; |
1334 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
1335 | entry->delayAwareRead(fd, readBuf->space(read_sz), read_sz, | |
9e008dda AJ |
1336 | asyncCall(11, 5, "HttpStateData::readReply", |
1337 | Dialer(this, &HttpStateData::readReply))); | |
528b2c61 | 1338 | } |
090089c4 | 1339 | } |
1340 | ||
2afaba07 | 1341 | /* |
1342 | * This will be called when request write is complete. | |
1343 | */ | |
d576a6a6 | 1344 | void |
dc56a9b1 | 1345 | HttpStateData::sendComplete(const CommIoCbParams &io) |
090089c4 | 1346 | { |
dc56a9b1 | 1347 | debugs(11, 5, "httpSendComplete: FD " << fd << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1348 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1349 | |
528b2c61 | 1350 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1351 | #endif |
62e76326 | 1352 | |
dc56a9b1 | 1353 | if (io.size > 0) { |
1354 | fd_bytes(fd, io.size, FD_WRITE); | |
1355 | kb_incr(&statCounter.server.all.kbytes_out, io.size); | |
1356 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
ee1679df | 1357 | } |
62e76326 | 1358 | |
dc56a9b1 | 1359 | if (io.flag == COMM_ERR_CLOSING) |
62e76326 | 1360 | return; |
1361 | ||
dc56a9b1 | 1362 | if (io.flag) { |
6cae5db1 | 1363 | ErrorState *err; |
dc56a9b1 | 1364 | err = errorCon(ERR_WRITE_ERROR, HTTP_BAD_GATEWAY, fwd->request); |
1365 | err->xerrno = io.xerrno; | |
1366 | fwd->fail(err); | |
62e76326 | 1367 | comm_close(fd); |
1368 | return; | |
090089c4 | 1369 | } |
72b63f06 | 1370 | |
2afaba07 | 1371 | /* |
1372 | * Set the read timeout here because it hasn't been set yet. | |
1373 | * We only set the read timeout after the request has been | |
1374 | * fully written to the server-side. If we start the timeout | |
1375 | * after connection establishment, then we are likely to hit | |
1376 | * the timeout for POST/PUT requests that have very large | |
1377 | * request bodies. | |
1378 | */ | |
dc56a9b1 | 1379 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
1380 | AsyncCall::Pointer timeoutCall = asyncCall(11, 5, "HttpStateData::httpTimeout", | |
9e008dda | 1381 | TimeoutDialer(this,&HttpStateData::httpTimeout)); |
2afaba07 | 1382 | |
dc56a9b1 | 1383 | commSetTimeout(fd, Config.Timeout.read, timeoutCall); |
1384 | ||
1385 | flags.request_sent = 1; | |
090089c4 | 1386 | } |
1387 | ||
5f8252d2 | 1388 | // Close the HTTP server connection. Used by serverComplete(). |
2afaba07 | 1389 | void |
5f8252d2 | 1390 | HttpStateData::closeServer() |
2afaba07 | 1391 | { |
5f8252d2 | 1392 | debugs(11,5, HERE << "closing HTTP server FD " << fd << " this " << this); |
fc68f6b1 | 1393 | |
2afaba07 | 1394 | if (fd >= 0) { |
b6b6f466 | 1395 | fwd->unregister(fd); |
9e008dda | 1396 | comm_remove_close_handler(fd, closeHandler); |
dc56a9b1 | 1397 | closeHandler = NULL; |
2afaba07 | 1398 | comm_close(fd); |
1399 | fd = -1; | |
1400 | } | |
5f8252d2 | 1401 | } |
2afaba07 | 1402 | |
5f8252d2 | 1403 | bool |
1404 | HttpStateData::doneWithServer() const | |
1405 | { | |
1406 | return fd < 0; | |
2afaba07 | 1407 | } |
1408 | ||
99edd1c3 | 1409 | /* |
9e008dda | 1410 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1411 | * used by buildRequestPrefix() |
818c6c9e | 1412 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1413 | */ |
e1e72f06 | 1414 | void |
e5ee81f0 | 1415 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
1416 | HttpRequest * orig_request, | |
1417 | StoreEntry * entry, | |
1418 | HttpHeader * hdr_out, | |
1419 | http_state_flags flags) | |
6bf8443a | 1420 | { |
99edd1c3 | 1421 | /* building buffer for complex strings */ |
5999b776 | 1422 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1423 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1424 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
99edd1c3 | 1425 | const HttpHeader *hdr_in = &orig_request->header; |
67c06f0d | 1426 | const HttpHeaderEntry *e = NULL; |
30abd221 | 1427 | String strFwd; |
99edd1c3 | 1428 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1429 | assert (hdr_out->owner == hoRequest); |
99edd1c3 | 1430 | /* append our IMS header */ |
62e76326 | 1431 | |
fa3e249f | 1432 | if (request->lastmod > -1) |
a9925b40 | 1433 | hdr_out->putTime(HDR_IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1434 | |
528b2c61 | 1435 | bool we_do_ranges = decideIfWeDoRanges (orig_request); |
1436 | ||
30abd221 | 1437 | String strConnection (hdr_in->getList(HDR_CONNECTION)); |
62e76326 | 1438 | |
a9925b40 | 1439 | while ((e = hdr_in->getEntry(&pos))) |
62e76326 | 1440 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, orig_request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1441 | |
43ae1d95 | 1442 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1443 | * into offset-length data, and this works around our inability to do so. |
1444 | */ | |
62e76326 | 1445 | if (!we_do_ranges && orig_request->multipartRangeRequest()) { |
1446 | /* don't cache the result */ | |
1447 | orig_request->flags.cachable = 0; | |
1448 | /* pretend it's not a range request */ | |
00d77d6b | 1449 | delete orig_request->range; |
62e76326 | 1450 | orig_request->range = NULL; |
1451 | orig_request->flags.range = 0; | |
1452 | } | |
528b2c61 | 1453 | |
99edd1c3 | 1454 | /* append Via */ |
736cb6aa | 1455 | if (Config.onoff.via) { |
30abd221 | 1456 | String strVia; |
a9925b40 | 1457 | strVia = hdr_in->getList(HDR_VIA); |
62e76326 | 1458 | snprintf(bbuf, BBUF_SZ, "%d.%d %s", |
1459 | orig_request->http_ver.major, | |
1460 | orig_request->http_ver.minor, ThisCache); | |
1461 | strListAdd(&strVia, bbuf, ','); | |
30abd221 | 1462 | hdr_out->putStr(HDR_VIA, strVia.buf()); |
1463 | strVia.clean(); | |
736cb6aa | 1464 | } |
62e76326 | 1465 | |
f41735ea | 1466 | #if USE_SQUID_ESI |
43ae1d95 | 1467 | { |
1468 | /* Append Surrogate-Capabilities */ | |
30abd221 | 1469 | String strSurrogate (hdr_in->getList(HDR_SURROGATE_CAPABILITY)); |
ec43ae0e | 1470 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", |
43ae1d95 | 1471 | Config.Accel.surrogate_id); |
1472 | strListAdd(&strSurrogate, bbuf, ','); | |
30abd221 | 1473 | hdr_out->putStr(HDR_SURROGATE_CAPABILITY, strSurrogate.buf()); |
43ae1d95 | 1474 | } |
1475 | #endif | |
1476 | ||
a9925b40 | 1477 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); |
62e76326 | 1478 | |
67c06f0d | 1479 | /** \pre Handle X-Forwarded-For */ |
9e008dda AJ |
1480 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
1481 | if (strcmp(opt_forwarded_for, "on") == 0) { | |
67c06f0d AJ |
1482 | /** If set to ON - append client IP or 'unknown'. */ |
1483 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
9e008dda | 1484 | if ( orig_request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1485 | strListAdd(&strFwd, "unknown", ','); |
1486 | else | |
1487 | strListAdd(&strFwd, orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN), ','); | |
9e008dda | 1488 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d AJ |
1489 | /** If set to OFF - append 'unknown'. */ |
1490 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
1491 | strListAdd(&strFwd, "unknown", ','); | |
9e008dda | 1492 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d AJ |
1493 | /** If set to TRANSPARENT - pass through unchanged. */ |
1494 | strFwd = hdr_in->getList(HDR_X_FORWARDED_FOR); | |
9e008dda | 1495 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1496 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
9e008dda | 1497 | if ( orig_request->client_addr.IsNoAddr() ) |
67c06f0d AJ |
1498 | strFwd = "unknown"; |
1499 | else | |
1500 | strFwd = orig_request->client_addr.NtoA(ntoabuf, MAX_IPSTRLEN); | |
1501 | } | |
9e008dda | 1502 | if (strFwd.size() > 0) |
67c06f0d | 1503 | hdr_out->putStr(HDR_X_FORWARDED_FOR, strFwd.buf()); |
cc192b50 | 1504 | } |
67c06f0d | 1505 | /** If set to DELETE - do not copy through. */ |
30abd221 | 1506 | strFwd.clean(); |
6bccf575 | 1507 | |
99edd1c3 | 1508 | /* append Host if not there already */ |
a9925b40 | 1509 | if (!hdr_out->has(HDR_HOST)) { |
62e76326 | 1510 | if (orig_request->peer_domain) { |
a9925b40 | 1511 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
62e76326 | 1512 | } else if (orig_request->port == urlDefaultPort(orig_request->protocol)) { |
1513 | /* use port# only if not default */ | |
cc192b50 | 1514 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
62e76326 | 1515 | } else { |
1516 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1517 | orig_request->GetHost(), |
1518 | (int) orig_request->port); | |
62e76326 | 1519 | } |
6bf8443a | 1520 | } |
62e76326 | 1521 | |
c68e9c6b | 1522 | /* append Authorization if known in URL, not in header and going direct */ |
a9925b40 | 1523 | if (!hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1524 | if (!request->flags.proxying && *request->login) { |
1525 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1526 | base64_encode(request->login)); | |
1527 | } | |
c68e9c6b | 1528 | } |
62e76326 | 1529 | |
c68e9c6b | 1530 | /* append Proxy-Authorization if configured for peer, and proxying */ |
c3b33cb7 | 1531 | if (request->flags.proxying && orig_request->peer_login && |
a9925b40 | 1532 | !hdr_out->has(HDR_PROXY_AUTHORIZATION)) { |
62e76326 | 1533 | if (*orig_request->peer_login == '*') { |
1534 | /* Special mode, to pass the username to the upstream cache */ | |
1535 | char loginbuf[256]; | |
1536 | const char *username = "-"; | |
1537 | ||
a8bc2b9c | 1538 | if (orig_request->extacl_user.size()) |
30abd221 | 1539 | username = orig_request->extacl_user.buf(); |
a8bc2b9c | 1540 | else if (orig_request->auth_user_request) |
1541 | username = orig_request->auth_user_request->username(); | |
62e76326 | 1542 | |
1543 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1544 | ||
1545 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1546 | base64_encode(loginbuf)); | |
1547 | } else if (strcmp(orig_request->peer_login, "PASS") == 0) { | |
abb929f0 | 1548 | if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1549 | char loginbuf[256]; | |
30abd221 | 1550 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); |
abb929f0 | 1551 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", |
1552 | base64_encode(loginbuf)); | |
1553 | } | |
62e76326 | 1554 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { |
1555 | /* Nothing to do */ | |
1556 | } else { | |
1557 | httpHeaderPutStrf(hdr_out, HDR_PROXY_AUTHORIZATION, "Basic %s", | |
1558 | base64_encode(orig_request->peer_login)); | |
1559 | } | |
c68e9c6b | 1560 | } |
62e76326 | 1561 | |
be753325 | 1562 | /* append WWW-Authorization if configured for peer */ |
1563 | if (flags.originpeer && orig_request->peer_login && | |
a9925b40 | 1564 | !hdr_out->has(HDR_AUTHORIZATION)) { |
62e76326 | 1565 | if (strcmp(orig_request->peer_login, "PASS") == 0) { |
1566 | /* No credentials to forward.. (should have been done above if available) */ | |
1567 | } else if (strcmp(orig_request->peer_login, "PROXYPASS") == 0) { | |
1568 | /* Special mode, convert proxy authentication to WWW authentication | |
abb929f0 | 1569 | * (also applies to authentication provided by external acl) |
62e76326 | 1570 | */ |
a9925b40 | 1571 | const char *auth = hdr_in->getStr(HDR_PROXY_AUTHORIZATION); |
62e76326 | 1572 | |
1573 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { | |
a9925b40 | 1574 | hdr_out->putStr(HDR_AUTHORIZATION, auth); |
abb929f0 | 1575 | } else if (orig_request->extacl_user.size() && orig_request->extacl_passwd.size()) { |
1576 | char loginbuf[256]; | |
30abd221 | 1577 | snprintf(loginbuf, sizeof(loginbuf), "%s:%s", orig_request->extacl_user.buf(), orig_request->extacl_passwd.buf()); |
abb929f0 | 1578 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", |
1579 | base64_encode(loginbuf)); | |
62e76326 | 1580 | } |
1581 | } else if (*orig_request->peer_login == '*') { | |
1582 | /* Special mode, to pass the username to the upstream cache */ | |
1583 | char loginbuf[256]; | |
1584 | const char *username = "-"; | |
1585 | ||
1586 | if (orig_request->auth_user_request) | |
f5691f9c | 1587 | username = orig_request->auth_user_request->username(); |
abb929f0 | 1588 | else if (orig_request->extacl_user.size()) |
30abd221 | 1589 | username = orig_request->extacl_user.buf(); |
62e76326 | 1590 | |
1591 | snprintf(loginbuf, sizeof(loginbuf), "%s%s", username, orig_request->peer_login + 1); | |
1592 | ||
1593 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1594 | base64_encode(loginbuf)); | |
1595 | } else { | |
1596 | /* Fixed login string */ | |
1597 | httpHeaderPutStrf(hdr_out, HDR_AUTHORIZATION, "Basic %s", | |
1598 | base64_encode(orig_request->peer_login)); | |
1599 | } | |
be753325 | 1600 | } |
62e76326 | 1601 | |
abb929f0 | 1602 | /* append Cache-Control, add max-age if not there already */ { |
a9925b40 | 1603 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1604 | |
1605 | if (!cc) | |
1606 | cc = httpHdrCcCreate(); | |
1607 | ||
7dc5c309 AJ |
1608 | #if 0 /* see bug 2330 */ |
1609 | /* Set no-cache if determined needed but not found */ | |
1610 | if (orig_request->flags.nocache) | |
1611 | EBIT_SET(cc->mask, CC_NO_CACHE); | |
1612 | #endif | |
1613 | ||
1614 | /* Add max-age only without no-cache */ | |
1615 | if (!EBIT_TEST(cc->mask, CC_MAX_AGE) && !EBIT_TEST(cc->mask, CC_NO_CACHE)) { | |
43ae1d95 | 1616 | const char *url = |
3900307b | 1617 | entry ? entry->url() : urlCanonical(orig_request); |
62e76326 | 1618 | httpHdrCcSetMaxAge(cc, getMaxAge(url)); |
1619 | ||
1620 | if (request->urlpath.size()) | |
30abd221 | 1621 | assert(strstr(url, request->urlpath.buf())); |
62e76326 | 1622 | } |
1623 | ||
ce2d6441 | 1624 | /* Enforce sibling relations */ |
62e76326 | 1625 | if (flags.only_if_cached) |
1626 | EBIT_SET(cc->mask, CC_ONLY_IF_CACHED); | |
1627 | ||
a9925b40 | 1628 | hdr_out->putCc(cc); |
62e76326 | 1629 | |
1630 | httpHdrCcDestroy(cc); | |
6bf8443a | 1631 | } |
62e76326 | 1632 | |
99edd1c3 | 1633 | /* maybe append Connection: keep-alive */ |
b515fc11 | 1634 | if (flags.keepalive) { |
62e76326 | 1635 | if (flags.proxying) { |
a9925b40 | 1636 | hdr_out->putStr(HDR_PROXY_CONNECTION, "keep-alive"); |
62e76326 | 1637 | } else { |
a9925b40 | 1638 | hdr_out->putStr(HDR_CONNECTION, "keep-alive"); |
62e76326 | 1639 | } |
603a02fd | 1640 | } |
62e76326 | 1641 | |
a7ad6e4e | 1642 | /* append Front-End-Https */ |
1643 | if (flags.front_end_https) { | |
62e76326 | 1644 | if (flags.front_end_https == 1 || request->protocol == PROTO_HTTPS) |
a9925b40 | 1645 | hdr_out->putStr(HDR_FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1646 | } |
1647 | ||
6bccf575 | 1648 | /* Now mangle the headers. */ |
4f56514c | 1649 | if (Config2.onoff.mangle_request_headers) |
5967c0bf | 1650 | httpHdrMangleList(hdr_out, request, ROR_REQUEST); |
62e76326 | 1651 | |
30abd221 | 1652 | strConnection.clean(); |
99edd1c3 | 1653 | } |
1654 | ||
528b2c61 | 1655 | void |
30abd221 | 1656 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, String strConnection, HttpRequest * request, HttpRequest * orig_request, HttpHeader * hdr_out, int we_do_ranges, http_state_flags flags) |
528b2c61 | 1657 | { |
30abd221 | 1658 | debugs(11, 5, "httpBuildRequestHeader: " << e->name.buf() << ": " << e->value.buf()); |
62e76326 | 1659 | |
528b2c61 | 1660 | if (!httpRequestHdrAllowed(e, &strConnection)) { |
30abd221 | 1661 | debugs(11, 2, "'" << e->name.buf() << "' header denied by anonymize_headers configuration"); |
62e76326 | 1662 | return; |
528b2c61 | 1663 | } |
62e76326 | 1664 | |
528b2c61 | 1665 | switch (e->id) { |
62e76326 | 1666 | |
be753325 | 1667 | case HDR_PROXY_AUTHORIZATION: |
62e76326 | 1668 | /* Only pass on proxy authentication to peers for which |
1669 | * authentication forwarding is explicitly enabled | |
1670 | */ | |
1671 | ||
1672 | if (flags.proxying && orig_request->peer_login && | |
abb929f0 | 1673 | (strcmp(orig_request->peer_login, "PASS") == 0 || |
1674 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1675 | hdr_out->addEntry(e->clone()); |
62e76326 | 1676 | } |
1677 | ||
1678 | break; | |
1679 | ||
be753325 | 1680 | case HDR_AUTHORIZATION: |
62e76326 | 1681 | /* Pass on WWW authentication */ |
1682 | ||
1683 | if (!flags.originpeer) { | |
eede25e7 | 1684 | hdr_out->addEntry(e->clone()); |
62e76326 | 1685 | } else { |
1686 | /* In accelerators, only forward authentication if enabled | |
1687 | * (see also below for proxy->server authentication) | |
1688 | */ | |
1689 | ||
abb929f0 | 1690 | if (orig_request->peer_login && |
1691 | (strcmp(orig_request->peer_login, "PASS") == 0 || | |
1692 | strcmp(orig_request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 1693 | hdr_out->addEntry(e->clone()); |
62e76326 | 1694 | } |
1695 | } | |
1696 | ||
1697 | break; | |
1698 | ||
be753325 | 1699 | case HDR_HOST: |
62e76326 | 1700 | /* |
b883b594 | 1701 | * Normally Squid rewrites the Host: header. |
1702 | * However, there is one case when we don't: If the URL | |
62e76326 | 1703 | * went through our redirector and the admin configured |
1704 | * 'redir_rewrites_host' to be off. | |
1705 | */ | |
9e008dda | 1706 | if (orig_request->peer_domain) |
488b27c5 HN |
1707 | hdr_out->putStr(HDR_HOST, orig_request->peer_domain); |
1708 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) | |
eede25e7 | 1709 | hdr_out->addEntry(e->clone()); |
b883b594 | 1710 | else { |
1711 | /* use port# only if not default */ | |
1712 | ||
1713 | if (orig_request->port == urlDefaultPort(orig_request->protocol)) { | |
cc192b50 | 1714 | hdr_out->putStr(HDR_HOST, orig_request->GetHost()); |
b883b594 | 1715 | } else { |
1716 | httpHeaderPutStrf(hdr_out, HDR_HOST, "%s:%d", | |
cc192b50 | 1717 | orig_request->GetHost(), |
1718 | (int) orig_request->port); | |
b883b594 | 1719 | } |
1720 | } | |
62e76326 | 1721 | |
1722 | break; | |
1723 | ||
be753325 | 1724 | case HDR_IF_MODIFIED_SINCE: |
62e76326 | 1725 | /* append unless we added our own; |
1726 | * note: at most one client's ims header can pass through */ | |
b883b594 | 1727 | |
a9925b40 | 1728 | if (!hdr_out->has(HDR_IF_MODIFIED_SINCE)) |
eede25e7 | 1729 | hdr_out->addEntry(e->clone()); |
62e76326 | 1730 | |
1731 | break; | |
1732 | ||
be753325 | 1733 | case HDR_MAX_FORWARDS: |
62e76326 | 1734 | if (orig_request->method == METHOD_TRACE) { |
eede25e7 | 1735 | const int hops = e->getInt(); |
62e76326 | 1736 | |
1737 | if (hops > 0) | |
a9925b40 | 1738 | hdr_out->putInt(HDR_MAX_FORWARDS, hops - 1); |
62e76326 | 1739 | } |
1740 | ||
1741 | break; | |
1742 | ||
be753325 | 1743 | case HDR_VIA: |
62e76326 | 1744 | /* If Via is disabled then forward any received header as-is */ |
1745 | ||
1746 | if (!Config.onoff.via) | |
eede25e7 | 1747 | hdr_out->addEntry(e->clone()); |
62e76326 | 1748 | |
1749 | break; | |
1750 | ||
be753325 | 1751 | case HDR_RANGE: |
62e76326 | 1752 | |
be753325 | 1753 | case HDR_IF_RANGE: |
62e76326 | 1754 | |
be753325 | 1755 | case HDR_REQUEST_RANGE: |
62e76326 | 1756 | if (!we_do_ranges) |
eede25e7 | 1757 | hdr_out->addEntry(e->clone()); |
62e76326 | 1758 | |
1759 | break; | |
1760 | ||
be753325 | 1761 | case HDR_PROXY_CONNECTION: |
62e76326 | 1762 | |
be753325 | 1763 | case HDR_CONNECTION: |
62e76326 | 1764 | |
be753325 | 1765 | case HDR_X_FORWARDED_FOR: |
62e76326 | 1766 | |
be753325 | 1767 | case HDR_CACHE_CONTROL: |
62e76326 | 1768 | /* append these after the loop if needed */ |
1769 | break; | |
1770 | ||
be753325 | 1771 | case HDR_FRONT_END_HTTPS: |
62e76326 | 1772 | if (!flags.front_end_https) |
eede25e7 | 1773 | hdr_out->addEntry(e->clone()); |
62e76326 | 1774 | |
1775 | break; | |
1776 | ||
be753325 | 1777 | default: |
62e76326 | 1778 | /* pass on all other header fields */ |
eede25e7 | 1779 | hdr_out->addEntry(e->clone()); |
528b2c61 | 1780 | } |
1781 | } | |
1782 | ||
e5ee81f0 | 1783 | bool |
1784 | HttpStateData::decideIfWeDoRanges (HttpRequest * orig_request) | |
528b2c61 | 1785 | { |
e5ee81f0 | 1786 | bool result = true; |
62e76326 | 1787 | /* decide if we want to do Ranges ourselves |
1788 | * and fetch the whole object now) | |
1789 | * We want to handle Ranges ourselves iff | |
1790 | * - we can actually parse client Range specs | |
1791 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
1792 | * - reply will be cachable | |
1793 | * (If the reply will be uncachable we have to throw it away after | |
1794 | * serving this request, so it is better to forward ranges to | |
1795 | * the server and fetch only the requested content) | |
1796 | */ | |
1797 | ||
1798 | if (NULL == orig_request->range || !orig_request->flags.cachable | |
d67acb4e | 1799 | || orig_request->range->offsetLimitExceeded() || orig_request->flags.connection_auth) |
e5ee81f0 | 1800 | result = false; |
62e76326 | 1801 | |
9e008dda AJ |
1802 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
1803 | orig_request->range << ", cachable: " << | |
1804 | orig_request->flags.cachable << "; we_do_ranges: " << result); | |
62e76326 | 1805 | |
1806 | return result; | |
528b2c61 | 1807 | } |
1808 | ||
62e76326 | 1809 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 1810 | * return the length of the prefix */ |
9bc73deb | 1811 | mb_size_t |
e5ee81f0 | 1812 | HttpStateData::buildRequestPrefix(HttpRequest * request, |
1813 | HttpRequest * orig_request, | |
1814 | StoreEntry * entry, | |
1815 | MemBuf * mb, | |
1816 | http_state_flags flags) | |
99edd1c3 | 1817 | { |
1818 | const int offset = mb->size; | |
450e0c10 | 1819 | HttpVersion httpver(1, 0); |
2fe7eff9 | 1820 | mb->Printf("%s %s HTTP/%d.%d\r\n", |
60745f24 | 1821 | RequestMethodStr(request->method), |
30abd221 | 1822 | request->urlpath.size() ? request->urlpath.buf() : "/", |
2fe7eff9 | 1823 | httpver.major,httpver.minor); |
99edd1c3 | 1824 | /* build and pack headers */ |
1825 | { | |
75faaa7a | 1826 | HttpHeader hdr(hoRequest); |
62e76326 | 1827 | Packer p; |
1828 | httpBuildRequestHeader(request, orig_request, entry, &hdr, flags); | |
9e008dda AJ |
1829 | |
1830 | if (request->flags.pinned && request->flags.connection_auth) | |
d67acb4e AJ |
1831 | request->flags.auth_sent = 1; |
1832 | else if (hdr.has(HDR_AUTHORIZATION)) | |
1833 | request->flags.auth_sent = 1; | |
1834 | ||
62e76326 | 1835 | packerToMemInit(&p, mb); |
a9925b40 | 1836 | hdr.packInto(&p); |
519e0948 | 1837 | hdr.clean(); |
62e76326 | 1838 | packerClean(&p); |
9d9d144b | 1839 | } |
99edd1c3 | 1840 | /* append header terminator */ |
2fe7eff9 | 1841 | mb->append(crlf, 2); |
99edd1c3 | 1842 | return mb->size - offset; |
6bf8443a | 1843 | } |
62e76326 | 1844 | |
090089c4 | 1845 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 1846 | bool |
2bb867b5 | 1847 | HttpStateData::sendRequest() |
090089c4 | 1848 | { |
99edd1c3 | 1849 | MemBuf mb; |
090089c4 | 1850 | |
bf8fe701 | 1851 | debugs(11, 5, "httpSendRequest: FD " << fd << ", request " << request << ", this " << this << "."); |
dc56a9b1 | 1852 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
1853 | AsyncCall::Pointer timeoutCall = asyncCall(11, 5, "HttpStateData::httpTimeout", | |
9e008dda | 1854 | TimeoutDialer(this,&HttpStateData::httpTimeout)); |
dc56a9b1 | 1855 | commSetTimeout(fd, Config.Timeout.lifetime, timeoutCall); |
2bb867b5 | 1856 | flags.do_next_read = 1; |
5f8252d2 | 1857 | maybeReadVirginBody(); |
1858 | ||
1859 | if (orig_request->body_pipe != NULL) { | |
123ec4de | 1860 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 1861 | return false; |
9e008dda | 1862 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
dc56a9b1 | 1863 | Dialer dialer(this, &HttpStateData::sentRequestBody); |
9e008dda | 1864 | requestSender = asyncCall(11,5, "HttpStateData::sentRequestBody", dialer); |
5f8252d2 | 1865 | } else { |
1866 | assert(!requestBodySource); | |
9e008dda | 1867 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
dc56a9b1 | 1868 | Dialer dialer(this, &HttpStateData::sendComplete); |
9e008dda | 1869 | requestSender = asyncCall(11,5, "HttpStateData::SendComplete", dialer); |
5f8252d2 | 1870 | } |
54220df8 | 1871 | |
2bb867b5 | 1872 | if (_peer != NULL) { |
1873 | if (_peer->options.originserver) { | |
1874 | flags.proxying = 0; | |
1875 | flags.originpeer = 1; | |
62e76326 | 1876 | } else { |
2bb867b5 | 1877 | flags.proxying = 1; |
1878 | flags.originpeer = 0; | |
62e76326 | 1879 | } |
be753325 | 1880 | } else { |
2bb867b5 | 1881 | flags.proxying = 0; |
1882 | flags.originpeer = 0; | |
be753325 | 1883 | } |
62e76326 | 1884 | |
efb9218c | 1885 | /* |
99edd1c3 | 1886 | * Is keep-alive okay for all request methods? |
efb9218c | 1887 | */ |
d67acb4e | 1888 | if (orig_request->flags.must_keepalive) |
9e008dda | 1889 | flags.keepalive = 1; |
d67acb4e | 1890 | else if (!Config.onoff.server_pconns) |
2bb867b5 | 1891 | flags.keepalive = 0; |
1892 | else if (_peer == NULL) | |
1893 | flags.keepalive = 1; | |
1894 | else if (_peer->stats.n_keepalives_sent < 10) | |
1895 | flags.keepalive = 1; | |
1896 | else if ((double) _peer->stats.n_keepalives_recv / | |
1897 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
1898 | flags.keepalive = 1; | |
1899 | ||
1900 | if (_peer) { | |
1901 | if (neighborType(_peer, request) == PEER_SIBLING && | |
1902 | !_peer->options.allow_miss) | |
1903 | flags.only_if_cached = 1; | |
1904 | ||
1905 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 1906 | } |
62e76326 | 1907 | |
2fe7eff9 | 1908 | mb.init(); |
e5ee81f0 | 1909 | buildRequestPrefix(request, orig_request, entry, &mb, flags); |
bf8fe701 | 1910 | debugs(11, 6, "httpSendRequest: FD " << fd << ":\n" << mb.buf); |
dc56a9b1 | 1911 | comm_write_mbuf(fd, &mb, requestSender); |
5f8252d2 | 1912 | |
1913 | return true; | |
090089c4 | 1914 | } |
b6a2f15e | 1915 | |
910169e5 | 1916 | void |
b6b6f466 | 1917 | httpStart(FwdState *fwd) |
603a02fd | 1918 | { |
60745f24 | 1919 | debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd->request->method) << " " << fwd->entry->url() << "\"" ); |
a3d50c30 | 1920 | HttpStateData *httpState = new HttpStateData(fwd); |
62e76326 | 1921 | |
5f8252d2 | 1922 | if (!httpState->sendRequest()) { |
bf8fe701 | 1923 | debugs(11, 3, "httpStart: aborted"); |
5f8252d2 | 1924 | delete httpState; |
1925 | return; | |
1926 | } | |
62e76326 | 1927 | |
5f8252d2 | 1928 | statCounter.server.all.requests++; |
83704487 | 1929 | statCounter.server.http.requests++; |
62e76326 | 1930 | |
b6a2f15e | 1931 | /* |
1932 | * We used to set the read timeout here, but not any more. | |
1933 | * Now its set in httpSendComplete() after the full request, | |
1934 | * including request body, has been written to the server. | |
1935 | */ | |
090089c4 | 1936 | } |
1937 | ||
2bb867b5 | 1938 | void |
5f8252d2 | 1939 | HttpStateData::doneSendingRequestBody() |
2bb867b5 | 1940 | { |
4fb35c3c | 1941 | ACLChecklist ch; |
5f8252d2 | 1942 | debugs(11,5, HERE << "doneSendingRequestBody: FD " << fd); |
6dd9f4bd | 1943 | ch.request = HTTPMSGLOCK(request); |
506768d9 | 1944 | |
1945 | if (Config.accessList.brokenPosts) | |
1946 | ch.accessList = cbdataReference(Config.accessList.brokenPosts); | |
62e76326 | 1947 | |
108d65b2 | 1948 | /* cbdataReferenceDone() happens in either fastCheck() or ~ACLCheckList */ |
1949 | ||
94439e4e | 1950 | if (!Config.accessList.brokenPosts) { |
bf8fe701 | 1951 | debugs(11, 5, "doneSendingRequestBody: No brokenPosts list"); |
9e008dda AJ |
1952 | CommIoCbParams io(NULL); |
1953 | io.fd=fd; | |
1954 | io.flag=COMM_OK; | |
1955 | sendComplete(io); | |
b448c119 | 1956 | } else if (!ch.fastCheck()) { |
bf8fe701 | 1957 | debugs(11, 5, "doneSendingRequestBody: didn't match brokenPosts"); |
9e008dda AJ |
1958 | CommIoCbParams io(NULL); |
1959 | io.fd=fd; | |
1960 | io.flag=COMM_OK; | |
1961 | sendComplete(io); | |
94439e4e | 1962 | } else { |
bf8fe701 | 1963 | debugs(11, 2, "doneSendingRequestBody: matched brokenPosts"); |
9e008dda | 1964 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
dc56a9b1 | 1965 | Dialer dialer(this, &HttpStateData::sendComplete); |
9e008dda | 1966 | AsyncCall::Pointer call= asyncCall(11,5, "HttpStateData::SendComplete", dialer); |
dc56a9b1 | 1967 | comm_write(fd, "\r\n", 2, call); |
54220df8 | 1968 | } |
94439e4e | 1969 | } |
1970 | ||
5f8252d2 | 1971 | // more origin request body data is available |
2bb867b5 | 1972 | void |
5f8252d2 | 1973 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 1974 | { |
2bb867b5 | 1975 | if (eof || fd < 0) { |
5f8252d2 | 1976 | // XXX: we should check this condition in other callbacks then! |
1977 | // TODO: Check whether this can actually happen: We should unsubscribe | |
1978 | // as a body consumer when the above condition(s) are detected. | |
2bb867b5 | 1979 | debugs(11, 1, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 1980 | return; |
1981 | } | |
62e76326 | 1982 | |
5f8252d2 | 1983 | assert(requestBodySource != NULL); |
fc68f6b1 | 1984 | |
5f8252d2 | 1985 | if (requestBodySource->buf().hasContent()) { |
1986 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 1987 | |
2bb867b5 | 1988 | if (flags.headers_parsed && !flags.abuse_detected) { |
1989 | flags.abuse_detected = 1; | |
cc192b50 | 1990 | debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << orig_request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 1991 | |
585ab260 | 1992 | if (virginReply()->sline.status == HTTP_INVALID_HEADER) { |
2bb867b5 | 1993 | comm_close(fd); |
21b92762 | 1994 | return; |
1995 | } | |
1996 | } | |
b6a2f15e | 1997 | } |
5f8252d2 | 1998 | |
1999 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2000 | } |
2001 | ||
5f8252d2 | 2002 | // premature end of the request body |
2bb867b5 | 2003 | void |
5f8252d2 | 2004 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2005 | { |
5f8252d2 | 2006 | ServerStateData::handleRequestBodyProducerAborted(); |
2007 | // XXX: SendComplete(COMM_ERR_CLOSING) does little. Is it enough? | |
dc56a9b1 | 2008 | CommIoCbParams io(NULL); |
2009 | io.fd=fd; | |
2010 | io.flag=COMM_ERR_CLOSING; | |
2011 | sendComplete(io); | |
2bb867b5 | 2012 | } |
2013 | ||
5f8252d2 | 2014 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2015 | void |
dc56a9b1 | 2016 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2017 | { |
dc56a9b1 | 2018 | if (io.size > 0) |
2019 | kb_incr(&statCounter.server.http.kbytes_out, io.size); | |
fc68f6b1 | 2020 | |
dc56a9b1 | 2021 | ServerStateData::sentRequestBody(io); |
5f8252d2 | 2022 | } |
3b299123 | 2023 | |
5f8252d2 | 2024 | // Quickly abort the transaction |
2025 | // TODO: destruction should be sufficient as the destructor should cleanup, | |
2026 | // including canceling close handlers | |
2027 | void | |
2028 | HttpStateData::abortTransaction(const char *reason) | |
2029 | { | |
2030 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
2031 | "; FD " << fd << ", this " << this); | |
fc68f6b1 | 2032 | |
3e8c047e | 2033 | if (fd >= 0) { |
62e76326 | 2034 | comm_close(fd); |
3e8c047e | 2035 | return; |
c23f0c74 | 2036 | } |
3e8c047e | 2037 | |
2038 | fwd->handleUnregisteredServerEnd(); | |
dc56a9b1 | 2039 | deleteThis("HttpStateData::abortTransaction"); |
54220df8 | 2040 | } |
ccf44862 | 2041 | |
073ba374 | 2042 | #if DEAD_CODE |
ccf44862 | 2043 | void |
450e0c10 | 2044 | httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor) |
110eb4e5 | 2045 | { |
2046 | version->major = major; | |
2047 | version->minor = minor; | |
ccf44862 | 2048 | } |
073ba374 | 2049 | #endif |
2afaba07 | 2050 | |
7c4e4e7f | 2051 | HttpRequest * |
2052 | HttpStateData::originalRequest() | |
2afaba07 | 2053 | { |
7c4e4e7f | 2054 | return orig_request; |
2afaba07 | 2055 | } |