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30a4f2a8 | 1 | /* |
f70aedc4 | 2 | * Copyright (C) 1996-2021 The Squid Software Foundation and contributors |
30a4f2a8 | 3 | * |
bbc27441 AJ |
4 | * Squid software is distributed under GPLv2+ license and includes |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
30a4f2a8 | 7 | */ |
019dd986 | 8 | |
bbc27441 AJ |
9 | /* DEBUG: section 11 Hypertext Transfer Protocol (HTTP) */ |
10 | ||
4a83b852 | 11 | /* |
12 | * Anonymizing patch by lutz@as-node.jena.thur.de | |
2f8abb64 | 13 | * have a look into http-anon.c to get more information. |
4a83b852 | 14 | */ |
15 | ||
582c2af2 | 16 | #include "squid.h" |
9ca29d23 | 17 | #include "acl/FilledChecklist.h" |
655daa06 | 18 | #include "base/AsyncJobCalls.h" |
3d93a84d | 19 | #include "base/TextException.h" |
602d9612 | 20 | #include "base64.h" |
a011edee | 21 | #include "CachePeer.h" |
582c2af2 | 22 | #include "client_side.h" |
8d71285d | 23 | #include "comm/Connection.h" |
395a814a | 24 | #include "comm/Read.h" |
ec41b64c | 25 | #include "comm/Write.h" |
d4a083cc | 26 | #include "CommRead.h" |
83b053a0 | 27 | #include "error/Detail.h" |
aa839030 | 28 | #include "errorpage.h" |
fc54b8d2 | 29 | #include "fd.h" |
85bef0a7 | 30 | #include "fde.h" |
67679543 | 31 | #include "globals.h" |
582c2af2 | 32 | #include "http.h" |
f542211b | 33 | #include "http/one/ResponseParser.h" |
db1720f8 | 34 | #include "http/one/TeChunkedParser.h" |
d3dddfb5 | 35 | #include "http/Stream.h" |
602d9612 | 36 | #include "HttpControlMsg.h" |
7ebe76de | 37 | #include "HttpHdrCc.h" |
582c2af2 | 38 | #include "HttpHdrContRange.h" |
b19dd748 | 39 | #include "HttpHdrSc.h" |
40 | #include "HttpHdrScTarget.h" | |
fc54b8d2 | 41 | #include "HttpHeaderTools.h" |
9ca29d23 AJ |
42 | #include "HttpReply.h" |
43 | #include "HttpRequest.h" | |
1c2b4465 | 44 | #include "HttpUpgradeProtocolAccess.h" |
fc54b8d2 | 45 | #include "log/access_log.h" |
9ca29d23 AJ |
46 | #include "MemBuf.h" |
47 | #include "MemObject.h" | |
fc54b8d2 | 48 | #include "neighbors.h" |
55622953 | 49 | #include "pconn.h" |
6ff204fc | 50 | #include "peer_proxy_negotiate_auth.h" |
fc54b8d2 | 51 | #include "refresh.h" |
8d9a8184 | 52 | #include "RefreshPattern.h" |
1fa9b1a7 | 53 | #include "rfc1738.h" |
4d5904f7 | 54 | #include "SquidConfig.h" |
985c86bc | 55 | #include "SquidTime.h" |
e4f1fdae | 56 | #include "StatCounters.h" |
9ca29d23 | 57 | #include "Store.h" |
28204b3b | 58 | #include "StrList.h" |
fc54b8d2 | 59 | #include "tools.h" |
ed6e9fb9 | 60 | #include "util.h" |
af0bb8e5 | 61 | |
582c2af2 FC |
62 | #if USE_AUTH |
63 | #include "auth/UserRequest.h" | |
64 | #endif | |
65 | #if USE_DELAY_POOLS | |
66 | #include "DelayPools.h" | |
67 | #endif | |
9ca29d23 | 68 | |
2afaba07 | 69 | CBDATA_CLASS_INIT(HttpStateData); |
090089c4 | 70 | |
6bf8443a | 71 | static const char *const crlf = "\r\n"; |
4db43fab | 72 | |
955394ce | 73 | static void httpMaybeRemovePublic(StoreEntry *, Http::StatusCode); |
e24f13cd | 74 | static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, |
bad9c5e4 | 75 | HttpHeader * hdr_out, const int we_do_ranges, const Http::StateFlags &); |
528b2c61 | 76 | |
8e100780 | 77 | HttpStateData::HttpStateData(FwdState *theFwdState) : |
1810a0cb SM |
78 | AsyncJob("HttpStateData"), |
79 | Client(theFwdState), | |
80 | lastChunk(0), | |
81 | httpChunkDecoder(NULL), | |
82 | payloadSeen(0), | |
eace013e EB |
83 | payloadTruncated(0), |
84 | sawDateGoBack(false) | |
2bb867b5 | 85 | { |
86 | debugs(11,5,HERE << "HttpStateData " << this << " created"); | |
a3d50c30 | 87 | ignoreCacheControl = false; |
88 | surrogateNoStore = false; | |
8d71285d | 89 | serverConnection = fwd->serverConnection(); |
a3d50c30 | 90 | |
5229395c AJ |
91 | if (fwd->serverConnection() != NULL) |
92 | _peer = cbdataReference(fwd->serverConnection()->getPeer()); /* might be NULL */ | |
a3d50c30 | 93 | |
f5e17947 CT |
94 | flags.peering = _peer; |
95 | flags.tunneling = (_peer && request->flags.sslBumped); | |
96 | flags.toOrigin = (!_peer || _peer->options.originserver || request->flags.sslBumped); | |
97 | ||
a3d50c30 | 98 | if (_peer) { |
a3d50c30 | 99 | /* |
100 | * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here. | |
101 | * We might end up getting the object from somewhere else if, | |
102 | * for example, the request to this neighbor fails. | |
103 | */ | |
f5e17947 | 104 | if (!flags.tunneling && _peer->options.proxy_only) |
4310f8b0 | 105 | entry->releaseRequest(true); |
a3d50c30 | 106 | |
9a0a18de | 107 | #if USE_DELAY_POOLS |
a3d50c30 | 108 | entry->setNoDelay(_peer->options.no_delay); |
a3d50c30 | 109 | #endif |
a3d50c30 | 110 | } |
111 | ||
112 | /* | |
113 | * register the handler to free HTTP state data when the FD closes | |
114 | */ | |
dc56a9b1 | 115 | typedef CommCbMemFunT<HttpStateData, CommCloseCbParams> Dialer; |
d1c7f781 | 116 | closeHandler = JobCallback(9, 5, Dialer, this, HttpStateData::httpStateConnClosed); |
8d71285d | 117 | comm_add_close_handler(serverConnection->fd, closeHandler); |
2bb867b5 | 118 | } |
b8d8561b | 119 | |
2afaba07 | 120 | HttpStateData::~HttpStateData() |
f5558c95 | 121 | { |
253caccb | 122 | /* |
fccd4a86 | 123 | * don't forget that ~Client() gets called automatically |
253caccb | 124 | */ |
125 | ||
9e008dda AJ |
126 | if (httpChunkDecoder) |
127 | delete httpChunkDecoder; | |
af0bb8e5 | 128 | |
5229395c AJ |
129 | cbdataReferenceDone(_peer); |
130 | ||
1c2b4465 CT |
131 | delete upgradeHeaderOut; |
132 | ||
9cf7de1b | 133 | debugs(11,5, HERE << "HttpStateData " << this << " destroyed; " << serverConnection); |
5f8252d2 | 134 | } |
135 | ||
6b679a01 | 136 | const Comm::ConnectionPointer & |
e83cc785 | 137 | HttpStateData::dataConnection() const |
fc68f6b1 | 138 | { |
6b679a01 | 139 | return serverConnection; |
2afaba07 | 140 | } |
8d71285d | 141 | |
9e008dda | 142 | void |
dc56a9b1 | 143 | HttpStateData::httpStateConnClosed(const CommCloseCbParams ¶ms) |
144 | { | |
145 | debugs(11, 5, "httpStateFree: FD " << params.fd << ", httpState=" << params.data); | |
70df76e3 | 146 | doneWithFwd = "httpStateConnClosed()"; // assume FwdState is monitoring too |
79628299 | 147 | mustStop("HttpStateData::httpStateConnClosed"); |
f5558c95 | 148 | } |
149 | ||
dc56a9b1 | 150 | void |
ced8def3 | 151 | HttpStateData::httpTimeout(const CommTimeoutCbParams &) |
090089c4 | 152 | { |
ced8def3 | 153 | debugs(11, 4, serverConnection << ": '" << entry->url() << "'"); |
62e76326 | 154 | |
12158bdc | 155 | if (entry->store_status == STORE_PENDING) { |
7e6eabbc | 156 | fwd->fail(new ErrorState(ERR_READ_TIMEOUT, Http::scGatewayTimeout, fwd->request, fwd->al)); |
9b312a19 | 157 | } |
62e76326 | 158 | |
398bc066 CT |
159 | closeServer(); |
160 | mustStop("HttpStateData::httpTimeout"); | |
090089c4 | 161 | } |
162 | ||
eace013e EB |
163 | static StoreEntry * |
164 | findPreviouslyCachedEntry(StoreEntry *newEntry) { | |
165 | assert(newEntry->mem_obj); | |
166 | return newEntry->mem_obj->request ? | |
c43405e7 | 167 | storeGetPublicByRequest(newEntry->mem_obj->request.getRaw()) : |
eace013e EB |
168 | storeGetPublic(newEntry->mem_obj->storeId(), newEntry->mem_obj->method); |
169 | } | |
170 | ||
09f0985d AR |
171 | /// Remove an existing public store entry if the incoming response (to be |
172 | /// stored in a currently private entry) is going to invalidate it. | |
f9cece6e | 173 | static void |
955394ce | 174 | httpMaybeRemovePublic(StoreEntry * e, Http::StatusCode status) |
f9cece6e | 175 | { |
914b89a2 | 176 | int remove = 0; |
7e3ce7b9 | 177 | int forbidden = 0; |
62e76326 | 178 | |
09f0985d AR |
179 | // If the incoming response already goes into a public entry, then there is |
180 | // nothing to remove. This protects ready-for-collapsing entries as well. | |
d46a87a8 | 181 | if (!EBIT_TEST(e->flags, KEY_PRIVATE)) |
62e76326 | 182 | return; |
3140dc6a GD |
183 | |
184 | // If the new/incoming response cannot be stored, then it does not | |
185 | // compete with the old stored response for the public key, and the | |
186 | // old stored response should be left as is. | |
187 | if (e->mem_obj->request && !e->mem_obj->request->flags.cachable) | |
188 | return; | |
62e76326 | 189 | |
f9cece6e | 190 | switch (status) { |
62e76326 | 191 | |
955394ce | 192 | case Http::scOkay: |
62e76326 | 193 | |
955394ce | 194 | case Http::scNonAuthoritativeInformation: |
62e76326 | 195 | |
955394ce | 196 | case Http::scMultipleChoices: |
62e76326 | 197 | |
955394ce | 198 | case Http::scMovedPermanently: |
62e76326 | 199 | |
f11c8e2f | 200 | case Http::scFound: |
62e76326 | 201 | |
5613c60d GD |
202 | case Http::scSeeOther: |
203 | ||
955394ce | 204 | case Http::scGone: |
62e76326 | 205 | |
955394ce | 206 | case Http::scNotFound: |
914b89a2 | 207 | remove = 1; |
62e76326 | 208 | |
209 | break; | |
210 | ||
955394ce | 211 | case Http::scForbidden: |
62e76326 | 212 | |
955394ce | 213 | case Http::scMethodNotAllowed: |
62e76326 | 214 | forbidden = 1; |
215 | ||
216 | break; | |
217 | ||
f9cece6e | 218 | #if WORK_IN_PROGRESS |
62e76326 | 219 | |
955394ce | 220 | case Http::scUnauthorized: |
62e76326 | 221 | forbidden = 1; |
222 | ||
223 | break; | |
224 | ||
f9cece6e | 225 | #endif |
62e76326 | 226 | |
f9cece6e | 227 | default: |
62e76326 | 228 | break; |
f9cece6e | 229 | } |
62e76326 | 230 | |
914b89a2 | 231 | if (!remove && !forbidden) |
62e76326 | 232 | return; |
233 | ||
eace013e | 234 | StoreEntry *pe = findPreviouslyCachedEntry(e); |
62e76326 | 235 | |
f66a9ef4 | 236 | if (pe != NULL) { |
62e76326 | 237 | assert(e != pe); |
d9129474 | 238 | #if USE_HTCP |
1ac1d4d3 | 239 | neighborsHtcpClear(e, e->mem_obj->request.getRaw(), e->mem_obj->method, HTCP_CLR_INVALIDATION); |
d9129474 | 240 | #endif |
4310f8b0 | 241 | pe->release(true); |
0856d155 | 242 | } |
62e76326 | 243 | |
914b89a2 | 244 | /** \par |
7e3ce7b9 | 245 | * Also remove any cached HEAD response in case the object has |
246 | * changed. | |
247 | */ | |
f66a9ef4 | 248 | if (e->mem_obj->request) |
c43405e7 | 249 | pe = storeGetPublicByRequestMethod(e->mem_obj->request.getRaw(), Http::METHOD_HEAD); |
f66a9ef4 | 250 | else |
c877c0bc | 251 | pe = storeGetPublic(e->mem_obj->storeId(), Http::METHOD_HEAD); |
62e76326 | 252 | |
f66a9ef4 | 253 | if (pe != NULL) { |
62e76326 | 254 | assert(e != pe); |
d9129474 | 255 | #if USE_HTCP |
1ac1d4d3 | 256 | neighborsHtcpClear(e, e->mem_obj->request.getRaw(), HttpRequestMethod(Http::METHOD_HEAD), HTCP_CLR_INVALIDATION); |
d9129474 | 257 | #endif |
4310f8b0 | 258 | pe->release(true); |
7e3ce7b9 | 259 | } |
f9cece6e | 260 | } |
261 | ||
43ae1d95 | 262 | void |
263 | HttpStateData::processSurrogateControl(HttpReply *reply) | |
264 | { | |
45e5102d | 265 | if (request->flags.accelerated && reply->surrogate_control) { |
45a58345 | 266 | HttpHdrScTarget *sctusable = reply->surrogate_control->getMergedTarget(Config.Accel.surrogate_id); |
43ae1d95 | 267 | |
268 | if (sctusable) { | |
810d879f | 269 | if (sctusable->hasNoStore() || |
43ae1d95 | 270 | (Config.onoff.surrogate_is_remote |
45a58345 | 271 | && sctusable->noStoreRemote())) { |
43ae1d95 | 272 | surrogateNoStore = true; |
39fe14b2 EB |
273 | // Be conservative for now and make it non-shareable because |
274 | // there is no enough information here to make the decision. | |
275 | entry->makePrivate(false); | |
43ae1d95 | 276 | } |
277 | ||
278 | /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an | |
279 | * accelerated request or not... | |
45cca89d | 280 | * Still, this is an abstraction breach. - RC |
43ae1d95 | 281 | */ |
45a58345 FC |
282 | if (sctusable->hasMaxAge()) { |
283 | if (sctusable->maxAge() < sctusable->maxStale()) | |
284 | reply->expires = reply->date + sctusable->maxAge(); | |
43ae1d95 | 285 | else |
45a58345 | 286 | reply->expires = reply->date + sctusable->maxStale(); |
43ae1d95 | 287 | |
288 | /* And update the timestamps */ | |
3900307b | 289 | entry->timestampsSet(); |
43ae1d95 | 290 | } |
291 | ||
292 | /* We ignore cache-control directives as per the Surrogate specification */ | |
293 | ignoreCacheControl = true; | |
294 | ||
45a58345 | 295 | delete sctusable; |
43ae1d95 | 296 | } |
297 | } | |
43ae1d95 | 298 | } |
299 | ||
39fe14b2 EB |
300 | HttpStateData::ReuseDecision::Answers |
301 | HttpStateData::reusableReply(HttpStateData::ReuseDecision &decision) | |
c54e9052 | 302 | { |
585ab260 | 303 | HttpReply const *rep = finalReply(); |
528b2c61 | 304 | HttpHeader const *hdr = &rep->header; |
c68e9c6b | 305 | const char *v; |
626096be | 306 | #if USE_HTTP_VIOLATIONS |
62e76326 | 307 | |
8d9a8184 | 308 | const RefreshPattern *R = NULL; |
b6445726 | 309 | |
346be6ad | 310 | /* This strange looking define first looks up the refresh pattern |
b6445726 | 311 | * and then checks if the specified flag is set. The main purpose |
626096be | 312 | * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS |
b6445726 | 313 | * condition |
314 | */ | |
315 | #define REFRESH_OVERRIDE(flag) \ | |
c877c0bc | 316 | ((R = (R ? R : refreshLimits(entry->mem_obj->storeId()))) , \ |
5f8252d2 | 317 | (R && R->flags.flag)) |
b445957e | 318 | #else |
319 | #define REFRESH_OVERRIDE(flag) 0 | |
38f9c547 | 320 | #endif |
43ae1d95 | 321 | |
39fe14b2 | 322 | if (EBIT_TEST(entry->flags, RELEASE_REQUEST)) |
4310f8b0 | 323 | return decision.make(ReuseDecision::doNotCacheButShare, "the entry has been released"); |
6919be24 | 324 | |
eace013e EB |
325 | // RFC 7234 section 4: a cache MUST use the most recent response |
326 | // (as determined by the Date header field) | |
39fe14b2 EB |
327 | // TODO: whether such responses could be shareable? |
328 | if (sawDateGoBack) | |
329 | return decision.make(ReuseDecision::reuseNot, "the response has an older date header"); | |
eace013e | 330 | |
2b59002c AJ |
331 | // Check for Surrogate/1.0 protocol conditions |
332 | // NP: reverse-proxy traffic our parent server has instructed us never to cache | |
39fe14b2 EB |
333 | if (surrogateNoStore) |
334 | return decision.make(ReuseDecision::reuseNot, "Surrogate-Control:no-store"); | |
62e76326 | 335 | |
2b59002c AJ |
336 | // RFC 2616: HTTP/1.1 Cache-Control conditions |
337 | if (!ignoreCacheControl) { | |
338 | // XXX: check to see if the request headers alone were enough to prevent caching earlier | |
339 | // (ie no-store request header) no need to check those all again here if so. | |
340 | // for now we are not reliably doing that so we waste CPU re-checking request CC | |
8466a4af | 341 | |
2b59002c | 342 | // RFC 2616 section 14.9.2 - MUST NOT cache any response with request CC:no-store |
810d879f | 343 | if (request && request->cache_control && request->cache_control->hasNoStore() && |
39fe14b2 EB |
344 | !REFRESH_OVERRIDE(ignore_no_store)) |
345 | return decision.make(ReuseDecision::reuseNot, | |
346 | "client request Cache-Control:no-store"); | |
38f9c547 | 347 | |
2b59002c | 348 | // NP: request CC:no-cache only means cache READ is forbidden. STORE is permitted. |
810d879f | 349 | if (rep->cache_control && rep->cache_control->hasNoCacheWithParameters()) { |
1259f9cf AJ |
350 | /* TODO: we are allowed to cache when no-cache= has parameters. |
351 | * Provided we strip away any of the listed headers unless they are revalidated | |
352 | * successfully (ie, must revalidate AND these headers are prohibited on stale replies). | |
353 | * That is a bit tricky for squid right now so we avoid caching entirely. | |
354 | */ | |
39fe14b2 EB |
355 | return decision.make(ReuseDecision::reuseNot, |
356 | "server reply Cache-Control:no-cache has parameters"); | |
1259f9cf AJ |
357 | } |
358 | ||
2b59002c AJ |
359 | // NP: request CC:private is undefined. We ignore. |
360 | // NP: other request CC flags are limiters on HIT/MISS. We don't care about here. | |
361 | ||
362 | // RFC 2616 section 14.9.2 - MUST NOT cache any response with CC:no-store | |
810d879f | 363 | if (rep->cache_control && rep->cache_control->hasNoStore() && |
39fe14b2 EB |
364 | !REFRESH_OVERRIDE(ignore_no_store)) |
365 | return decision.make(ReuseDecision::reuseNot, | |
366 | "server reply Cache-Control:no-store"); | |
38f9c547 | 367 | |
2b59002c | 368 | // RFC 2616 section 14.9.1 - MUST NOT cache any response with CC:private in a shared cache like Squid. |
1259f9cf | 369 | // CC:private overrides CC:public when both are present in a response. |
2b59002c AJ |
370 | // TODO: add a shared/private cache configuration possibility. |
371 | if (rep->cache_control && | |
1259f9cf | 372 | rep->cache_control->hasPrivate() && |
2b59002c | 373 | !REFRESH_OVERRIDE(ignore_private)) { |
1259f9cf AJ |
374 | /* TODO: we are allowed to cache when private= has parameters. |
375 | * Provided we strip away any of the listed headers unless they are revalidated | |
376 | * successfully (ie, must revalidate AND these headers are prohibited on stale replies). | |
377 | * That is a bit tricky for squid right now so we avoid caching entirely. | |
378 | */ | |
39fe14b2 EB |
379 | return decision.make(ReuseDecision::reuseNot, |
380 | "server reply Cache-Control:private"); | |
38f9c547 | 381 | } |
2b59002c | 382 | } |
1259f9cf | 383 | |
2b59002c AJ |
384 | // RFC 2068, sec 14.9.4 - MUST NOT cache any response with Authentication UNLESS certain CC controls are present |
385 | // allow HTTP violations to IGNORE those controls (ie re-block caching Auth) | |
d94cbaa8 | 386 | if (request && (request->flags.auth || request->flags.authSent)) { |
39fe14b2 EB |
387 | if (!rep->cache_control) |
388 | return decision.make(ReuseDecision::reuseNot, | |
389 | "authenticated and server reply missing Cache-Control"); | |
62e76326 | 390 | |
39fe14b2 EB |
391 | if (ignoreCacheControl) |
392 | return decision.make(ReuseDecision::reuseNot, | |
393 | "authenticated and ignoring Cache-Control"); | |
62e76326 | 394 | |
2b59002c | 395 | bool mayStore = false; |
8f9343d0 | 396 | // HTTPbis pt6 section 3.2: a response CC:public is present |
810d879f | 397 | if (rep->cache_control->hasPublic()) { |
2b59002c AJ |
398 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:public"); |
399 | mayStore = true; | |
400 | ||
8f9343d0 | 401 | // HTTPbis pt6 section 3.2: a response CC:must-revalidate is present |
810d879f | 402 | } else if (rep->cache_control->hasMustRevalidate()) { |
d94cbaa8 | 403 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:must-revalidate"); |
2b59002c AJ |
404 | mayStore = true; |
405 | ||
8f9343d0 | 406 | #if USE_HTTP_VIOLATIONS |
2b59002c | 407 | // NP: given the must-revalidate exception we should also be able to exempt no-cache. |
8f9343d0 AJ |
408 | // HTTPbis WG verdict on this is that it is omitted from the spec due to being 'unexpected' by |
409 | // some. The caching+revalidate is not exactly unsafe though with Squids interpretation of no-cache | |
1259f9cf | 410 | // (without parameters) as equivalent to must-revalidate in the reply. |
810d879f | 411 | } else if (rep->cache_control->hasNoCacheWithoutParameters()) { |
8f9343d0 | 412 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:no-cache (equivalent to must-revalidate)"); |
2b59002c AJ |
413 | mayStore = true; |
414 | #endif | |
415 | ||
8f9343d0 | 416 | // HTTPbis pt6 section 3.2: a response CC:s-maxage is present |
810d879f | 417 | } else if (rep->cache_control->hasSMaxAge()) { |
908ac81e | 418 | debugs(22, 3, HERE << "Authenticated but server reply Cache-Control:s-maxage"); |
2b59002c AJ |
419 | mayStore = true; |
420 | } | |
62e76326 | 421 | |
39fe14b2 EB |
422 | if (!mayStore) |
423 | return decision.make(ReuseDecision::reuseNot, "authenticated transaction"); | |
2b59002c AJ |
424 | |
425 | // NP: response CC:no-cache is equivalent to CC:must-revalidate,max-age=0. We MAY cache, and do so. | |
426 | // NP: other request CC flags are limiters on HIT/MISS/REFRESH. We don't care about here. | |
c68e9c6b | 427 | } |
62e76326 | 428 | |
2b59002c | 429 | /* HACK: The "multipart/x-mixed-replace" content type is used for |
c68e9c6b | 430 | * continuous push replies. These are generally dynamic and |
431 | * probably should not be cachable | |
432 | */ | |
789217a2 | 433 | if ((v = hdr->getStr(Http::HdrType::CONTENT_TYPE))) |
39fe14b2 EB |
434 | if (!strncasecmp(v, "multipart/x-mixed-replace", 25)) |
435 | return decision.make(ReuseDecision::reuseNot, "Content-Type:multipart/x-mixed-replace"); | |
436 | ||
437 | // TODO: if possible, provide more specific message for each status code | |
438 | static const char *shareableError = "shareable error status code"; | |
439 | static const char *nonShareableError = "non-shareable error status code"; | |
440 | ReuseDecision::Answers statusAnswer = ReuseDecision::reuseNot; | |
441 | const char *statusReason = nonShareableError; | |
62e76326 | 442 | |
9b769c67 | 443 | switch (rep->sline.status()) { |
39fe14b2 EB |
444 | |
445 | /* There are several situations when a non-cacheable response may be | |
446 | * still shareable (e.g., among collapsed clients). We assume that these | |
447 | * are 3xx and 5xx responses, indicating server problems and some of | |
448 | * 4xx responses, common for all clients with a given cache key (e.g., | |
449 | * 404 Not Found or 414 URI Too Long). On the other hand, we should not | |
450 | * share non-cacheable client-specific errors, such as 400 Bad Request | |
451 | * or 406 Not Acceptable. | |
452 | */ | |
453 | ||
f53969cc | 454 | /* Responses that are cacheable */ |
62e76326 | 455 | |
955394ce | 456 | case Http::scOkay: |
62e76326 | 457 | |
955394ce | 458 | case Http::scNonAuthoritativeInformation: |
62e76326 | 459 | |
955394ce | 460 | case Http::scMultipleChoices: |
62e76326 | 461 | |
955394ce AJ |
462 | case Http::scMovedPermanently: |
463 | case Http::scPermanentRedirect: | |
62e76326 | 464 | |
955394ce | 465 | case Http::scGone: |
62e76326 | 466 | /* |
467 | * Don't cache objects that need to be refreshed on next request, | |
468 | * unless we know how to refresh it. | |
469 | */ | |
470 | ||
39fe14b2 EB |
471 | if (refreshIsCachable(entry) || REFRESH_OVERRIDE(store_stale)) |
472 | decision.make(ReuseDecision::cachePositively, "refresh check returned cacheable"); | |
473 | else | |
474 | decision.make(ReuseDecision::doNotCacheButShare, "refresh check returned non-cacheable"); | |
62e76326 | 475 | break; |
476 | ||
f53969cc | 477 | /* Responses that only are cacheable if the server says so */ |
62e76326 | 478 | |
f11c8e2f | 479 | case Http::scFound: |
955394ce | 480 | case Http::scTemporaryRedirect: |
39fe14b2 EB |
481 | if (rep->date <= 0) |
482 | decision.make(ReuseDecision::doNotCacheButShare, "Date is missing/invalid"); | |
3655aa12 | 483 | else if (rep->expires > rep->date) |
39fe14b2 EB |
484 | decision.make(ReuseDecision::cachePositively, "Expires > Date"); |
485 | else | |
486 | decision.make(ReuseDecision::doNotCacheButShare, "Expires <= Date"); | |
62e76326 | 487 | break; |
488 | ||
c3d5e452 | 489 | /* These responses can be negatively cached. Most can also be shared. */ |
955394ce | 490 | case Http::scNoContent: |
955394ce | 491 | case Http::scUseProxy: |
955394ce | 492 | case Http::scForbidden: |
955394ce | 493 | case Http::scNotFound: |
955394ce | 494 | case Http::scMethodNotAllowed: |
f11c8e2f | 495 | case Http::scUriTooLong: |
955394ce | 496 | case Http::scInternalServerError: |
955394ce | 497 | case Http::scNotImplemented: |
955394ce | 498 | case Http::scBadGateway: |
955394ce | 499 | case Http::scServiceUnavailable: |
f11c8e2f | 500 | case Http::scGatewayTimeout: |
fe3f8977 | 501 | case Http::scMisdirectedRequest: |
39fe14b2 EB |
502 | statusAnswer = ReuseDecision::doNotCacheButShare; |
503 | statusReason = shareableError; | |
8b082ed9 | 504 | /* [[fallthrough]] to the actual decision making below */ |
62e76326 | 505 | |
c3d5e452 | 506 | case Http::scBadRequest: // no sharing; perhaps the server did not like something specific to this request |
39fe14b2 EB |
507 | #if USE_HTTP_VIOLATIONS |
508 | if (Config.negativeTtl > 0) | |
509 | decision.make(ReuseDecision::cacheNegatively, "Config.negativeTtl > 0"); | |
510 | else | |
511 | #endif | |
512 | decision.make(statusAnswer, statusReason); | |
62e76326 | 513 | break; |
514 | ||
39fe14b2 EB |
515 | /* these responses can never be cached, some |
516 | of them can be shared though */ | |
955394ce | 517 | case Http::scSeeOther: |
955394ce | 518 | case Http::scNotModified: |
955394ce | 519 | case Http::scUnauthorized: |
955394ce | 520 | case Http::scProxyAuthenticationRequired: |
955394ce | 521 | case Http::scPaymentRequired: |
39fe14b2 EB |
522 | case Http::scInsufficientStorage: |
523 | // TODO: use more specific reason for non-error status codes | |
524 | decision.make(ReuseDecision::doNotCacheButShare, shareableError); | |
525 | break; | |
526 | ||
527 | case Http::scPartialContent: /* Not yet supported. TODO: make shareable for suitable ranges */ | |
955394ce | 528 | case Http::scNotAcceptable: |
39fe14b2 EB |
529 | case Http::scRequestTimeout: // TODO: is this shareable? |
530 | case Http::scConflict: // TODO: is this shareable? | |
955394ce AJ |
531 | case Http::scLengthRequired: |
532 | case Http::scPreconditionFailed: | |
f11c8e2f | 533 | case Http::scPayloadTooLarge: |
955394ce AJ |
534 | case Http::scUnsupportedMediaType: |
535 | case Http::scUnprocessableEntity: | |
39fe14b2 | 536 | case Http::scLocked: // TODO: is this shareable? |
955394ce | 537 | case Http::scFailedDependency: |
955394ce AJ |
538 | case Http::scRequestedRangeNotSatisfied: |
539 | case Http::scExpectationFailed: | |
39fe14b2 EB |
540 | case Http::scInvalidHeader: /* Squid header parsing error */ |
541 | case Http::scHeaderTooLarge: | |
542 | decision.make(ReuseDecision::reuseNot, nonShareableError); | |
543 | break; | |
62e76326 | 544 | |
41217979 AJ |
545 | default: |
546 | /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */ | |
39fe14b2 | 547 | decision.make(ReuseDecision::reuseNot, "unknown status code"); |
62e76326 | 548 | break; |
c54e9052 | 549 | } |
62e76326 | 550 | |
39fe14b2 | 551 | return decision.answer; |
c54e9052 | 552 | } |
090089c4 | 553 | |
f5df2040 AJ |
554 | /// assemble a variant key (vary-mark) from the given Vary header and HTTP request |
555 | static void | |
556 | assembleVaryKey(String &vary, SBuf &vstr, const HttpRequest &request) | |
f66a9ef4 | 557 | { |
90ab8f20 | 558 | static const SBuf asterisk("*"); |
f5df2040 AJ |
559 | const char *pos = nullptr; |
560 | const char *item = nullptr; | |
561 | int ilen = 0; | |
62e76326 | 562 | |
f66a9ef4 | 563 | while (strListGetItem(&vary, ',', &item, &ilen, &pos)) { |
81ab22b6 FC |
564 | SBuf name(item, ilen); |
565 | if (name == asterisk) { | |
ee2e0b31 | 566 | vstr = asterisk; |
9776e3cc | 567 | break; |
568 | } | |
81ab22b6 | 569 | name.toLower(); |
90ab8f20 AJ |
570 | if (!vstr.isEmpty()) |
571 | vstr.append(", ", 2); | |
572 | vstr.append(name); | |
f5df2040 AJ |
573 | String hdr(request.header.getByName(name)); |
574 | const char *value = hdr.termedBuf(); | |
62e76326 | 575 | if (value) { |
576 | value = rfc1738_escape_part(value); | |
577 | vstr.append("=\"", 2); | |
578 | vstr.append(value); | |
579 | vstr.append("\"", 1); | |
580 | } | |
581 | ||
30abd221 | 582 | hdr.clean(); |
f66a9ef4 | 583 | } |
f5df2040 | 584 | } |
62e76326 | 585 | |
f5df2040 AJ |
586 | /* |
587 | * For Vary, store the relevant request headers as | |
588 | * virtual headers in the reply | |
589 | * Returns an empty SBuf if the variance cannot be stored | |
590 | */ | |
591 | SBuf | |
592 | httpMakeVaryMark(HttpRequest * request, HttpReply const * reply) | |
593 | { | |
594 | SBuf vstr; | |
595 | String vary; | |
62e76326 | 596 | |
f5df2040 AJ |
597 | vary = reply->header.getList(Http::HdrType::VARY); |
598 | assembleVaryKey(vary, vstr, *request); | |
62e76326 | 599 | |
f5df2040 | 600 | #if X_ACCELERATOR_VARY |
30abd221 | 601 | vary.clean(); |
f5df2040 AJ |
602 | vary = reply->header.getList(Http::HdrType::HDR_X_ACCELERATOR_VARY); |
603 | assembleVaryKey(vary, vstr, *request); | |
f66a9ef4 | 604 | #endif |
62e76326 | 605 | |
90ab8f20 AJ |
606 | debugs(11, 3, vstr); |
607 | return vstr; | |
f66a9ef4 | 608 | } |
609 | ||
2afaba07 | 610 | void |
611 | HttpStateData::keepaliveAccounting(HttpReply *reply) | |
612 | { | |
613 | if (flags.keepalive) | |
f5e17947 | 614 | if (flags.peering && !flags.tunneling) |
95dc7ff4 | 615 | ++ _peer->stats.n_keepalives_sent; |
2afaba07 | 616 | |
617 | if (reply->keep_alive) { | |
f5e17947 | 618 | if (flags.peering && !flags.tunneling) |
95dc7ff4 | 619 | ++ _peer->stats.n_keepalives_recv; |
2afaba07 | 620 | |
af6a12ee AJ |
621 | if (Config.onoff.detect_broken_server_pconns |
622 | && reply->bodySize(request->method) == -1 && !flags.chunked) { | |
e0236918 | 623 | debugs(11, DBG_IMPORTANT, "keepaliveAccounting: Impossible keep-alive header from '" << entry->url() << "'" ); |
bf8fe701 | 624 | // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" ); |
46f4b111 | 625 | flags.keepalive_broken = true; |
2afaba07 | 626 | } |
627 | } | |
628 | } | |
629 | ||
630 | void | |
631 | HttpStateData::checkDateSkew(HttpReply *reply) | |
632 | { | |
f5e17947 | 633 | if (reply->date > -1 && flags.toOrigin) { |
2afaba07 | 634 | int skew = abs((int)(reply->date - squid_curtime)); |
635 | ||
636 | if (skew > 86400) | |
5c51bffb | 637 | debugs(11, 3, "" << request->url.host() << "'s clock is skewed by " << skew << " seconds!"); |
2afaba07 | 638 | } |
639 | } | |
640 | ||
073ba374 | 641 | /** |
4eb368f9 | 642 | * This creates the error page itself.. its likely |
643 | * that the forward ported reply header max size patch | |
644 | * generates non http conformant error pages - in which | |
645 | * case the errors where should be 'BAD_GATEWAY' etc | |
646 | */ | |
b8d8561b | 647 | void |
2afaba07 | 648 | HttpStateData::processReplyHeader() |
f5558c95 | 649 | { |
073ba374 | 650 | /** Creates a blank header. If this routine is made incremental, this will not do */ |
859f1666 | 651 | |
bf8fe701 | 652 | debugs(11, 3, "processReplyHeader: key '" << entry->getMD5Text() << "'"); |
62e76326 | 653 | |
1a98175f | 654 | assert(!flags.headers_parsed); |
62e76326 | 655 | |
908aa0ca | 656 | if (!inBuf.length()) |
b73a07d6 AJ |
657 | return; |
658 | ||
f542211b AJ |
659 | /* Attempt to parse the first line; this will define where the protocol, status, reason-phrase and header begin */ |
660 | { | |
661 | if (hp == NULL) | |
662 | hp = new Http1::ResponseParser; | |
663 | ||
664 | bool parsedOk = hp->parse(inBuf); | |
38da9c24 EB |
665 | // remember the actual received status-code before returning on errors, |
666 | // overwriting any previously stored value from earlier forwarding attempts | |
667 | request->hier.peer_reply_status = hp->messageStatus(); // may still be scNone | |
f542211b AJ |
668 | |
669 | // sync the buffers after parsing. | |
670 | inBuf = hp->remaining(); | |
671 | ||
672 | if (hp->needsMoreData()) { | |
673 | if (eof) { // no more data coming | |
a2897a3a EB |
674 | assert(!parsedOk); |
675 | // fall through to handle this premature EOF as an error | |
f542211b AJ |
676 | } else { |
677 | debugs(33, 5, "Incomplete response, waiting for end of response headers"); | |
f542211b AJ |
678 | return; |
679 | } | |
680 | } | |
62e76326 | 681 | |
f542211b AJ |
682 | if (!parsedOk) { |
683 | // unrecoverable parsing error | |
3d67f7e6 | 684 | // TODO: Use Raw! XXX: inBuf no longer has the [beginning of the] malformed header. |
f542211b | 685 | debugs(11, 3, "Non-HTTP-compliant header:\n---------\n" << inBuf << "\n----------"); |
18b4c80d | 686 | flags.headers_parsed = true; |
f542211b | 687 | HttpReply *newrep = new HttpReply; |
a2897a3a EB |
688 | // hp->needsMoreData() means hp->parseStatusCode is unusable, but, here, |
689 | // it also means that the reply header got truncated by a premature EOF | |
690 | assert(!hp->needsMoreData() || eof); | |
691 | const auto scode = hp->needsMoreData() ? Http::scInvalidHeader : hp->parseStatusCode; | |
692 | newrep->sline.set(Http::ProtocolVersion(), scode); | |
3d67f7e6 | 693 | setVirginReply(newrep); |
9e008dda AJ |
694 | return; |
695 | } | |
f542211b | 696 | } |
9e008dda | 697 | |
f542211b AJ |
698 | /* We know the whole response is in parser now */ |
699 | debugs(11, 2, "HTTP Server " << serverConnection); | |
700 | debugs(11, 2, "HTTP Server RESPONSE:\n---------\n" << | |
701 | hp->messageProtocol() << " " << hp->messageStatus() << " " << hp->reasonPhrase() << "\n" << | |
702 | hp->mimeHeader() << | |
8e100780 | 703 | "----------"); |
9e008dda | 704 | |
8e100780 AJ |
705 | // reset payload tracking to begin after message headers |
706 | payloadSeen = inBuf.length(); | |
9e008dda | 707 | |
f542211b | 708 | HttpReply *newrep = new HttpReply; |
62f9b110 AJ |
709 | // XXX: RFC 7230 indicates we MAY ignore the reason phrase, |
710 | // and use an empty string on unknown status. | |
711 | // We do that now to avoid performance regression from using SBuf::c_str() | |
8774ca07 | 712 | newrep->sline.set(hp->messageProtocol(), hp->messageStatus() /* , hp->reasonPhrase() */); |
f542211b AJ |
713 | |
714 | // parse headers | |
af2980f3 | 715 | if (!newrep->parseHeader(*hp)) { |
8774ca07 | 716 | newrep->sline.set(hp->messageProtocol(), Http::scInvalidHeader); |
f542211b | 717 | debugs(11, 2, "error parsing response headers mime block"); |
f5558c95 | 718 | } |
62e76326 | 719 | |
f542211b AJ |
720 | // done with Parser, now process using the HttpReply |
721 | hp = NULL; | |
722 | ||
63df1d28 | 723 | newrep->sources |= request->url.getScheme() == AnyP::PROTO_HTTPS ? Http::Message::srcHttps : Http::Message::srcHttp; |
88df846b | 724 | |
c679653d | 725 | newrep->removeStaleWarnings(); |
3d9e71e6 | 726 | |
8774ca07 | 727 | if (newrep->sline.version.protocol == AnyP::PROTO_HTTP && Http::Is1xx(newrep->sline.status())) { |
655daa06 | 728 | handle1xx(newrep); |
3d9e71e6 AJ |
729 | return; |
730 | } | |
731 | ||
46f4b111 | 732 | flags.chunked = false; |
8774ca07 | 733 | if (newrep->sline.version.protocol == AnyP::PROTO_HTTP && newrep->header.chunked()) { |
46f4b111 | 734 | flags.chunked = true; |
db1720f8 | 735 | httpChunkDecoder = new Http1::TeChunkedParser; |
af0bb8e5 | 736 | } |
737 | ||
9e008dda | 738 | if (!peerSupportsConnectionPinning()) |
e857372a | 739 | request->flags.connectionAuthDisabled = true; |
d67acb4e | 740 | |
585ab260 | 741 | HttpReply *vrep = setVirginReply(newrep); |
46f4b111 | 742 | flags.headers_parsed = true; |
6965ab28 | 743 | |
585ab260 | 744 | keepaliveAccounting(vrep); |
47ac2ebe | 745 | |
585ab260 | 746 | checkDateSkew(vrep); |
47ac2ebe | 747 | |
585ab260 | 748 | processSurrogateControl (vrep); |
2afaba07 | 749 | } |
750 | ||
655daa06 AR |
751 | /// ignore or start forwarding the 1xx response (a.k.a., control message) |
752 | void | |
753 | HttpStateData::handle1xx(HttpReply *reply) | |
754 | { | |
49f57088 EB |
755 | if (fwd->al) |
756 | fwd->al->reply = reply; | |
757 | ||
b248c2a3 | 758 | HttpReply::Pointer msg(reply); // will destroy reply if unused |
655daa06 AR |
759 | |
760 | // one 1xx at a time: we must not be called while waiting for previous 1xx | |
761 | Must(!flags.handling1xx); | |
762 | flags.handling1xx = true; | |
763 | ||
1c2b4465 CT |
764 | const auto statusCode = reply->sline.status(); |
765 | ||
766 | // drop1xx() needs to handle HTTP 101 (Switching Protocols) responses | |
767 | // specially because they indicate that the server has stopped speaking HTTP | |
768 | Must(!flags.serverSwitchedProtocols); | |
769 | flags.serverSwitchedProtocols = (statusCode == Http::scSwitchingProtocols); | |
770 | ||
771 | if (statusCode == Http::scContinue && request->forcedBodyContinuation) | |
772 | return drop1xx("we have sent it already"); | |
773 | ||
774 | if (!request->canHandle1xx()) | |
775 | return drop1xx("the client does not support it"); | |
655daa06 AR |
776 | |
777 | #if USE_HTTP_VIOLATIONS | |
778 | // check whether the 1xx response forwarding is allowed by squid.conf | |
779 | if (Config.accessList.reply) { | |
d603e3c2 | 780 | ACLFilledChecklist ch(Config.accessList.reply, originalRequest().getRaw()); |
cb365059 | 781 | ch.al = fwd->al; |
b248c2a3 | 782 | ch.reply = reply; |
cb365059 | 783 | ch.syncAle(originalRequest().getRaw(), nullptr); |
b248c2a3 | 784 | HTTPMSGLOCK(ch.reply); |
1c2b4465 CT |
785 | if (!ch.fastCheck().allowed()) // TODO: support slow lookups? |
786 | return drop1xx("http_reply_access blocked it"); | |
655daa06 AR |
787 | } |
788 | #endif // USE_HTTP_VIOLATIONS | |
789 | ||
1c2b4465 CT |
790 | if (flags.serverSwitchedProtocols) { |
791 | if (const auto reason = blockSwitchingProtocols(*reply)) | |
792 | return drop1xx(reason); | |
793 | } | |
794 | ||
655daa06 AR |
795 | debugs(11, 2, HERE << "forwarding 1xx to client"); |
796 | ||
797 | // the Sink will use this to call us back after writing 1xx to the client | |
798 | typedef NullaryMemFunT<HttpStateData> CbDialer; | |
799 | const AsyncCall::Pointer cb = JobCallback(11, 3, CbDialer, this, | |
de48b288 | 800 | HttpStateData::proceedAfter1xx); |
e24f13cd | 801 | CallJobHere1(11, 4, request->clientConnectionManager, ConnStateData, |
655daa06 AR |
802 | ConnStateData::sendControlMsg, HttpControlMsg(msg, cb)); |
803 | // If the call is not fired, then the Sink is gone, and HttpStateData | |
804 | // will terminate due to an aborted store entry or another similar error. | |
805 | // If we get stuck, it is not handle1xx fault if we could get stuck | |
806 | // for similar reasons without a 1xx response. | |
807 | } | |
808 | ||
1c2b4465 CT |
809 | /// if possible, safely ignores the received 1xx control message |
810 | /// otherwise, terminates the server connection | |
811 | void | |
812 | HttpStateData::drop1xx(const char *reason) | |
813 | { | |
814 | if (flags.serverSwitchedProtocols) { | |
815 | debugs(11, 2, "bad 101 because " << reason); | |
816 | const auto err = new ErrorState(ERR_INVALID_RESP, Http::scBadGateway, request.getRaw(), fwd->al); | |
817 | fwd->fail(err); | |
818 | closeServer(); | |
819 | mustStop("prohibited HTTP/101 response"); | |
820 | return; | |
821 | } | |
822 | ||
823 | debugs(11, 2, "ignoring 1xx because " << reason); | |
824 | proceedAfter1xx(); | |
825 | } | |
826 | ||
827 | /// \retval nil if the HTTP/101 (Switching Protocols) reply should be forwarded | |
828 | /// \retval reason why an attempt to switch protocols should be stopped | |
829 | const char * | |
830 | HttpStateData::blockSwitchingProtocols(const HttpReply &reply) const | |
831 | { | |
832 | if (!upgradeHeaderOut) | |
833 | return "Squid offered no Upgrade at all, but server switched to a tunnel"; | |
834 | ||
835 | // See RFC 7230 section 6.7 for the corresponding MUSTs | |
836 | ||
837 | if (!reply.header.has(Http::HdrType::UPGRADE)) | |
838 | return "server did not send an Upgrade header field"; | |
839 | ||
840 | if (!reply.header.hasListMember(Http::HdrType::CONNECTION, "upgrade", ',')) | |
841 | return "server did not send 'Connection: upgrade'"; | |
842 | ||
843 | const auto acceptedProtos = reply.header.getList(Http::HdrType::UPGRADE); | |
844 | const char *pos = nullptr; | |
845 | const char *accepted = nullptr; | |
846 | int acceptedLen = 0; | |
847 | while (strListGetItem(&acceptedProtos, ',', &accepted, &acceptedLen, &pos)) { | |
848 | debugs(11, 5, "server accepted at least" << Raw(nullptr, accepted, acceptedLen)); | |
849 | return nullptr; // OK: let the client validate server's selection | |
850 | } | |
851 | ||
852 | return "server sent an essentially empty Upgrade header field"; | |
853 | } | |
854 | ||
655daa06 AR |
855 | /// restores state and resumes processing after 1xx is ignored or forwarded |
856 | void | |
857 | HttpStateData::proceedAfter1xx() | |
858 | { | |
859 | Must(flags.handling1xx); | |
1c2b4465 CT |
860 | |
861 | if (flags.serverSwitchedProtocols) { | |
862 | // pass server connection ownership to request->clientConnectionManager | |
8b082ed9 | 863 | ConnStateData::ServerConnectionContext scc(serverConnection, inBuf); |
1c2b4465 CT |
864 | typedef UnaryMemFunT<ConnStateData, ConnStateData::ServerConnectionContext> MyDialer; |
865 | AsyncCall::Pointer call = asyncCall(11, 3, "ConnStateData::noteTakeServerConnectionControl", | |
866 | MyDialer(request->clientConnectionManager, | |
867 | &ConnStateData::noteTakeServerConnectionControl, scc)); | |
868 | ScheduleCallHere(call); | |
869 | fwd->unregister(serverConnection); | |
870 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
871 | closeHandler = nullptr; | |
872 | serverConnection = nullptr; | |
873 | doneWithFwd = "switched protocols"; | |
874 | mustStop(doneWithFwd); | |
875 | return; | |
876 | } | |
877 | ||
8e100780 | 878 | debugs(11, 2, "continuing with " << payloadSeen << " bytes in buffer after 1xx"); |
655daa06 AR |
879 | CallJobHere(11, 3, this, HttpStateData, HttpStateData::processReply); |
880 | } | |
881 | ||
d67acb4e AJ |
882 | /** |
883 | * returns true if the peer can support connection pinning | |
884 | */ | |
f891baff AJ |
885 | bool |
886 | HttpStateData::peerSupportsConnectionPinning() const | |
d67acb4e | 887 | { |
d67acb4e | 888 | if (!_peer) |
9e008dda AJ |
889 | return true; |
890 | ||
f5e17947 CT |
891 | // we are talking "through" rather than "to" our _peer |
892 | if (flags.tunneling) | |
893 | return true; | |
894 | ||
9e008dda | 895 | /*If this peer does not support connection pinning (authenticated |
d67acb4e AJ |
896 | connections) return false |
897 | */ | |
898 | if (!_peer->connection_auth) | |
9e008dda | 899 | return false; |
d67acb4e | 900 | |
66d51f4f | 901 | const auto &rep = entry->mem().freshestReply(); |
f891baff | 902 | |
9e008dda | 903 | /*The peer supports connection pinning and the http reply status |
d67acb4e AJ |
904 | is not unauthorized, so the related connection can be pinned |
905 | */ | |
66d51f4f | 906 | if (rep.sline.status() != Http::scUnauthorized) |
9e008dda AJ |
907 | return true; |
908 | ||
955394ce | 909 | /*The server respond with Http::scUnauthorized and the peer configured |
9e008dda | 910 | with "connection-auth=on" we know that the peer supports pinned |
d67acb4e AJ |
911 | connections |
912 | */ | |
913 | if (_peer->connection_auth == 1) | |
9e008dda | 914 | return true; |
d67acb4e | 915 | |
9e008dda AJ |
916 | /*At this point peer has configured with "connection-auth=auto" |
917 | parameter so we need some extra checks to decide if we are going | |
d67acb4e AJ |
918 | to allow pinned connections or not |
919 | */ | |
920 | ||
9e008dda | 921 | /*if the peer configured with originserver just allow connection |
d67acb4e AJ |
922 | pinning (squid 2.6 behaviour) |
923 | */ | |
924 | if (_peer->options.originserver) | |
9e008dda | 925 | return true; |
d67acb4e AJ |
926 | |
927 | /*if the connections it is already pinned it is OK*/ | |
45e5102d | 928 | if (request->flags.pinned) |
9e008dda AJ |
929 | return true; |
930 | ||
931 | /*Allow pinned connections only if the Proxy-support header exists in | |
932 | reply and has in its list the "Session-Based-Authentication" | |
d67acb4e AJ |
933 | which means that the peer supports connection pinning. |
934 | */ | |
66d51f4f | 935 | if (rep.header.hasListMember(Http::HdrType::PROXY_SUPPORT, "Session-Based-Authentication", ',')) |
f891baff | 936 | return true; |
d67acb4e | 937 | |
f891baff | 938 | return false; |
d67acb4e AJ |
939 | } |
940 | ||
5f8252d2 | 941 | // Called when we parsed (and possibly adapted) the headers but |
942 | // had not starting storing (a.k.a., sending) the body yet. | |
2afaba07 | 943 | void |
944 | HttpStateData::haveParsedReplyHeaders() | |
945 | { | |
fccd4a86 | 946 | Client::haveParsedReplyHeaders(); |
c1520b67 | 947 | |
585ab260 | 948 | HttpReply *rep = finalReply(); |
39fe14b2 | 949 | const Http::StatusCode statusCode = rep->sline.status(); |
2afaba07 | 950 | |
3900307b | 951 | entry->timestampsSet(); |
62e76326 | 952 | |
9bc73deb | 953 | /* Check if object is cacheable or not based on reply code */ |
39fe14b2 | 954 | debugs(11, 3, "HTTP CODE: " << statusCode); |
62e76326 | 955 | |
4310f8b0 EB |
956 | if (StoreEntry *oldEntry = findPreviouslyCachedEntry(entry)) { |
957 | oldEntry->lock("HttpStateData::haveParsedReplyHeaders"); | |
66d51f4f | 958 | sawDateGoBack = rep->olderThan(oldEntry->hasFreshestReply()); |
4310f8b0 EB |
959 | oldEntry->unlock("HttpStateData::haveParsedReplyHeaders"); |
960 | } | |
eace013e EB |
961 | |
962 | if (neighbors_do_private_keys && !sawDateGoBack) | |
9b769c67 | 963 | httpMaybeRemovePublic(entry, rep->sline.status()); |
e6ccf245 | 964 | |
7c476309 | 965 | bool varyFailure = false; |
789217a2 | 966 | if (rep->header.has(Http::HdrType::VARY) |
f66a9ef4 | 967 | #if X_ACCELERATOR_VARY |
789217a2 | 968 | || rep->header.has(Http::HdrType::HDR_X_ACCELERATOR_VARY) |
f66a9ef4 | 969 | #endif |
4b44c907 | 970 | ) { |
d603e3c2 | 971 | const SBuf vary(httpMakeVaryMark(request.getRaw(), rep)); |
4b44c907 | 972 | |
90ab8f20 | 973 | if (vary.isEmpty()) { |
39fe14b2 EB |
974 | // TODO: check whether such responses are shareable. |
975 | // Do not share for now. | |
976 | entry->makePrivate(false); | |
70eb3fde EB |
977 | if (fwd->reforwardableStatus(rep->sline.status())) |
978 | EBIT_SET(entry->flags, ENTRY_FWD_HDR_WAIT); | |
7c476309 AJ |
979 | varyFailure = true; |
980 | } else { | |
90ab8f20 | 981 | entry->mem_obj->vary_headers = vary; |
ee2e0b31 AJ |
982 | |
983 | // RFC 7231 section 7.1.4 | |
984 | // Vary:* can be cached, but has mandatory revalidation | |
985 | static const SBuf asterisk("*"); | |
986 | if (vary == asterisk) | |
987 | EBIT_SET(entry->flags, ENTRY_REVALIDATE_ALWAYS); | |
62e76326 | 988 | } |
4b44c907 | 989 | } |
990 | ||
7c476309 AJ |
991 | if (!varyFailure) { |
992 | /* | |
993 | * If its not a reply that we will re-forward, then | |
994 | * allow the client to get it. | |
995 | */ | |
70eb3fde EB |
996 | if (fwd->reforwardableStatus(rep->sline.status())) |
997 | EBIT_SET(entry->flags, ENTRY_FWD_HDR_WAIT); | |
2afaba07 | 998 | |
39fe14b2 | 999 | ReuseDecision decision(entry, statusCode); |
4b44c907 | 1000 | |
39fe14b2 EB |
1001 | switch (reusableReply(decision)) { |
1002 | ||
1003 | case ReuseDecision::reuseNot: | |
1004 | entry->makePrivate(false); | |
7c476309 | 1005 | break; |
62e76326 | 1006 | |
39fe14b2 | 1007 | case ReuseDecision::cachePositively: |
4310f8b0 EB |
1008 | if (!entry->makePublic()) { |
1009 | decision.make(ReuseDecision::doNotCacheButShare, "public key creation error"); | |
1010 | entry->makePrivate(true); | |
1011 | } | |
7c476309 | 1012 | break; |
62e76326 | 1013 | |
39fe14b2 | 1014 | case ReuseDecision::cacheNegatively: |
4310f8b0 EB |
1015 | if (!entry->cacheNegatively()) { |
1016 | decision.make(ReuseDecision::doNotCacheButShare, "public key creation error"); | |
1017 | entry->makePrivate(true); | |
1018 | } | |
39fe14b2 | 1019 | break; |
4b44c907 | 1020 | |
39fe14b2 EB |
1021 | case ReuseDecision::doNotCacheButShare: |
1022 | entry->makePrivate(true); | |
7c476309 | 1023 | break; |
4b44c907 | 1024 | |
7c476309 AJ |
1025 | default: |
1026 | assert(0); | |
1027 | break; | |
1028 | } | |
39fe14b2 | 1029 | debugs(11, 3, "decided: " << decision); |
9bc73deb | 1030 | } |
62e76326 | 1031 | |
2b59002c AJ |
1032 | if (!ignoreCacheControl) { |
1033 | if (rep->cache_control) { | |
1259f9cf AJ |
1034 | // We are required to revalidate on many conditions. |
1035 | // For security reasons we do so even if storage was caused by refresh_pattern ignore-* option | |
1036 | ||
1037 | // CC:must-revalidate or CC:proxy-revalidate | |
810d879f | 1038 | const bool ccMustRevalidate = (rep->cache_control->hasProxyRevalidate() || rep->cache_control->hasMustRevalidate()); |
1259f9cf AJ |
1039 | |
1040 | // CC:no-cache (only if there are no parameters) | |
810d879f | 1041 | const bool ccNoCacheNoParams = rep->cache_control->hasNoCacheWithoutParameters(); |
1259f9cf AJ |
1042 | |
1043 | // CC:s-maxage=N | |
1044 | const bool ccSMaxAge = rep->cache_control->hasSMaxAge(); | |
1045 | ||
1046 | // CC:private (yes, these can sometimes be stored) | |
1047 | const bool ccPrivate = rep->cache_control->hasPrivate(); | |
1048 | ||
fa83b766 EB |
1049 | if (ccNoCacheNoParams || ccPrivate) |
1050 | EBIT_SET(entry->flags, ENTRY_REVALIDATE_ALWAYS); | |
1051 | else if (ccMustRevalidate || ccSMaxAge) | |
1052 | EBIT_SET(entry->flags, ENTRY_REVALIDATE_STALE); | |
2b59002c AJ |
1053 | } |
1054 | #if USE_HTTP_VIOLATIONS // response header Pragma::no-cache is undefined in HTTP | |
1055 | else { | |
1056 | // Expensive calculation. So only do it IF the CC: header is not present. | |
1057 | ||
1058 | /* HACK: Pragma: no-cache in _replies_ is not documented in HTTP, | |
1059 | * but servers like "Active Imaging Webcast/2.0" sure do use it */ | |
789217a2 FC |
1060 | if (rep->header.has(Http::HdrType::PRAGMA) && |
1061 | rep->header.hasListMember(Http::HdrType::PRAGMA,"no-cache",',')) | |
fa83b766 | 1062 | EBIT_SET(entry->flags, ENTRY_REVALIDATE_ALWAYS); |
2b59002c AJ |
1063 | } |
1064 | #endif | |
9bc73deb | 1065 | } |
62e76326 | 1066 | |
c3609322 | 1067 | #if HEADERS_LOG |
585ab260 | 1068 | headersLog(1, 0, request->method, rep); |
fc68f6b1 | 1069 | |
c3609322 | 1070 | #endif |
f5558c95 | 1071 | } |
1072 | ||
528b2c61 | 1073 | HttpStateData::ConnectionStatus |
1074 | HttpStateData::statusIfComplete() const | |
603a02fd | 1075 | { |
585ab260 | 1076 | const HttpReply *rep = virginReply(); |
073ba374 AJ |
1077 | /** \par |
1078 | * If the reply wants to close the connection, it takes precedence */ | |
62e76326 | 1079 | |
d5f18517 AJ |
1080 | static SBuf close("close", 5); |
1081 | if (httpHeaderHasConnDir(&rep->header, close)) | |
62e76326 | 1082 | return COMPLETE_NONPERSISTENT_MSG; |
1083 | ||
073ba374 | 1084 | /** \par |
1f482f82 | 1085 | * If we sent a Connection:close request header, then this |
978e455f | 1086 | * can not be a persistent connection. |
1087 | */ | |
528b2c61 | 1088 | if (!flags.keepalive) |
62e76326 | 1089 | return COMPLETE_NONPERSISTENT_MSG; |
1090 | ||
1f482f82 AR |
1091 | /** \par |
1092 | * If we banned reuse, then this cannot be a persistent connection. | |
1093 | */ | |
1094 | if (flags.forceClose) | |
1095 | return COMPLETE_NONPERSISTENT_MSG; | |
1096 | ||
073ba374 | 1097 | /** \par |
72b63f06 | 1098 | * If we haven't sent the whole request then this can not be a persistent |
1099 | * connection. | |
1100 | */ | |
1101 | if (!flags.request_sent) { | |
7f06a3d8 | 1102 | debugs(11, 2, "Request not yet fully sent " << request->method << ' ' << entry->url()); |
72b63f06 | 1103 | return COMPLETE_NONPERSISTENT_MSG; |
1104 | } | |
1105 | ||
073ba374 | 1106 | /** \par |
9f5a2895 | 1107 | * What does the reply have to say about keep-alive? |
1108 | */ | |
073ba374 AJ |
1109 | /** |
1110 | \bug XXX BUG? | |
b6a2f15e | 1111 | * If the origin server (HTTP/1.0) does not send a keep-alive |
1112 | * header, but keeps the connection open anyway, what happens? | |
1113 | * We'll return here and http.c waits for an EOF before changing | |
1114 | * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT | |
1115 | * and an error status code, and we might have to wait until | |
1116 | * the server times out the socket. | |
1117 | */ | |
2afaba07 | 1118 | if (!rep->keep_alive) |
528b2c61 | 1119 | return COMPLETE_NONPERSISTENT_MSG; |
62e76326 | 1120 | |
528b2c61 | 1121 | return COMPLETE_PERSISTENT_MSG; |
1122 | } | |
1123 | ||
1124 | HttpStateData::ConnectionStatus | |
1125 | HttpStateData::persistentConnStatus() const | |
1126 | { | |
9cf7de1b | 1127 | debugs(11, 3, HERE << serverConnection << " eof=" << eof); |
839291ac AJ |
1128 | if (eof) // already reached EOF |
1129 | return COMPLETE_NONPERSISTENT_MSG; | |
1130 | ||
505c2f28 AR |
1131 | /* If server fd is closing (but we have not been notified yet), stop Comm |
1132 | I/O to avoid assertions. TODO: Change Comm API to handle callers that | |
1133 | want more I/O after async closing (usually initiated by others). */ | |
1134 | // XXX: add canReceive or s/canSend/canTalkToServer/ | |
e7cea0ed | 1135 | if (!Comm::IsConnOpen(serverConnection)) |
505c2f28 AR |
1136 | return COMPLETE_NONPERSISTENT_MSG; |
1137 | ||
9035d1d5 AJ |
1138 | /** \par |
1139 | * In chunked response we do not know the content length but we are absolutely | |
af0bb8e5 | 1140 | * sure about the end of response, so we are calling the statusIfComplete to |
2f8abb64 | 1141 | * decide if we can be persistent |
af0bb8e5 | 1142 | */ |
839291ac | 1143 | if (lastChunk && flags.chunked) |
9e008dda | 1144 | return statusIfComplete(); |
af0bb8e5 | 1145 | |
718d84bf AR |
1146 | const HttpReply *vrep = virginReply(); |
1147 | debugs(11, 5, "persistentConnStatus: content_length=" << vrep->content_length); | |
1148 | ||
47f6e231 | 1149 | const int64_t clen = vrep->bodySize(request->method); |
fc68f6b1 | 1150 | |
bf8fe701 | 1151 | debugs(11, 5, "persistentConnStatus: clen=" << clen); |
2afaba07 | 1152 | |
35282fbf | 1153 | /* If the body size is unknown we must wait for EOF */ |
1154 | if (clen < 0) | |
62e76326 | 1155 | return INCOMPLETE_MSG; |
1156 | ||
9035d1d5 AJ |
1157 | /** \par |
1158 | * If the body size is known, we must wait until we've gotten all of it. */ | |
5f8252d2 | 1159 | if (clen > 0) { |
8e100780 | 1160 | debugs(11,5, "payloadSeen=" << payloadSeen << " content_length=" << vrep->content_length); |
2afaba07 | 1161 | |
8e100780 | 1162 | if (payloadSeen < vrep->content_length) |
5f8252d2 | 1163 | return INCOMPLETE_MSG; |
821beb5e | 1164 | |
8e100780 | 1165 | if (payloadTruncated > 0) // already read more than needed |
821beb5e | 1166 | return COMPLETE_NONPERSISTENT_MSG; // disable pconns |
5f8252d2 | 1167 | } |
62e76326 | 1168 | |
9035d1d5 AJ |
1169 | /** \par |
1170 | * If there is no message body or we got it all, we can be persistent */ | |
5f8252d2 | 1171 | return statusIfComplete(); |
603a02fd | 1172 | } |
090089c4 | 1173 | |
d4a083cc AJ |
1174 | static void |
1175 | readDelayed(void *context, CommRead const &) | |
1176 | { | |
1177 | HttpStateData *state = static_cast<HttpStateData*>(context); | |
57912702 | 1178 | state->flags.do_next_read = true; |
d4a083cc AJ |
1179 | state->maybeReadVirginBody(); |
1180 | } | |
d4a083cc | 1181 | |
c4b7a5a9 | 1182 | void |
e6edd8df | 1183 | HttpStateData::readReply(const CommIoCbParams &io) |
090089c4 | 1184 | { |
5867ac79 | 1185 | Must(!flags.do_next_read); // XXX: should have been set false by mayReadVirginBody() |
46f4b111 | 1186 | flags.do_next_read = false; |
9e008dda | 1187 | |
395a814a | 1188 | debugs(11, 5, io.conn); |
62e76326 | 1189 | |
c8407295 AJ |
1190 | // Bail out early on Comm::ERR_CLOSING - close handlers will tidy up for us |
1191 | if (io.flag == Comm::ERR_CLOSING) { | |
bf8fe701 | 1192 | debugs(11, 3, "http socket closing"); |
c4b7a5a9 | 1193 | return; |
1194 | } | |
1195 | ||
e92e4e44 | 1196 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
6dd9a2e4 | 1197 | abortTransaction("store entry aborted while reading reply"); |
62e76326 | 1198 | return; |
e92e4e44 | 1199 | } |
c4b7a5a9 | 1200 | |
5867ac79 AJ |
1201 | Must(Comm::IsConnOpen(serverConnection)); |
1202 | Must(io.conn->fd == serverConnection->fd); | |
fdf55365 | 1203 | |
395a814a AJ |
1204 | /* |
1205 | * Don't reset the timeout value here. The value should be | |
1206 | * counting Config.Timeout.request and applies to the request | |
1207 | * as a whole, not individual read() calls. | |
1208 | * Plus, it breaks our lame *HalfClosed() detection | |
1209 | */ | |
1210 | ||
1ad68518 | 1211 | Must(maybeMakeSpaceAvailable(true)); |
395a814a AJ |
1212 | CommIoCbParams rd(this); // will be expanded with ReadNow results |
1213 | rd.conn = io.conn; | |
1214 | rd.size = entry->bytesWanted(Range<size_t>(0, inBuf.spaceSize())); | |
395a814a | 1215 | |
f1ba1fba EB |
1216 | if (rd.size <= 0) { |
1217 | assert(entry->mem_obj); | |
d4a083cc | 1218 | AsyncCall::Pointer nilCall; |
f1ba1fba | 1219 | entry->mem_obj->delayRead(DeferredRead(readDelayed, this, CommRead(io.conn, NULL, 0, nilCall))); |
fdf55365 | 1220 | return; |
1221 | } | |
1222 | ||
395a814a AJ |
1223 | switch (Comm::ReadNow(rd, inBuf)) { |
1224 | case Comm::INPROGRESS: | |
1225 | if (inBuf.isEmpty()) | |
1226 | debugs(33, 2, io.conn << ": no data to process, " << xstrerr(rd.xerrno)); | |
da958e50 | 1227 | flags.do_next_read = true; |
395a814a AJ |
1228 | maybeReadVirginBody(); |
1229 | return; | |
1230 | ||
1231 | case Comm::OK: | |
1232 | { | |
8e100780 | 1233 | payloadSeen += rd.size; |
9a0a18de | 1234 | #if USE_DELAY_POOLS |
2afaba07 | 1235 | DelayId delayId = entry->mem_obj->mostBytesAllowed(); |
395a814a | 1236 | delayId.bytesIn(rd.size); |
447e176b | 1237 | #endif |
62e76326 | 1238 | |
a0864754 AJ |
1239 | statCounter.server.all.kbytes_in += rd.size; |
1240 | statCounter.server.http.kbytes_in += rd.size; | |
95dc7ff4 | 1241 | ++ IOStats.Http.reads; |
62e76326 | 1242 | |
395a814a AJ |
1243 | int bin = 0; |
1244 | for (int clen = rd.size - 1; clen; ++bin) | |
62e76326 | 1245 | clen >>= 1; |
1246 | ||
95dc7ff4 | 1247 | ++ IOStats.Http.read_hist[bin]; |
3ff65596 | 1248 | |
d8165775 | 1249 | request->hier.notePeerRead(); |
30a4f2a8 | 1250 | } |
62e76326 | 1251 | |
395a814a | 1252 | /* Continue to process previously read data */ |
1810a0cb | 1253 | break; |
5fa061b8 | 1254 | |
395a814a | 1255 | case Comm::ENDFILE: // close detected by 0-byte read |
62e76326 | 1256 | eof = 1; |
46f4b111 | 1257 | flags.do_next_read = false; |
da6c8415 | 1258 | |
395a814a AJ |
1259 | /* Continue to process previously read data */ |
1260 | break; | |
1261 | ||
1810a0cb | 1262 | // case Comm::COMM_ERROR: |
395a814a AJ |
1263 | default: // no other flags should ever occur |
1264 | debugs(11, 2, io.conn << ": read failure: " << xstrerr(rd.xerrno)); | |
7e6eabbc | 1265 | const auto err = new ErrorState(ERR_READ_ERROR, Http::scBadGateway, fwd->request, fwd->al); |
da958e50 CT |
1266 | err->xerrno = rd.xerrno; |
1267 | fwd->fail(err); | |
1268 | flags.do_next_read = false; | |
398bc066 CT |
1269 | closeServer(); |
1270 | mustStop("HttpStateData::readReply"); | |
395a814a | 1271 | return; |
ba82c452 | 1272 | } |
62e76326 | 1273 | |
395a814a | 1274 | /* Process next response from buffer */ |
655daa06 AR |
1275 | processReply(); |
1276 | } | |
1277 | ||
1278 | /// processes the already read and buffered response data, possibly after | |
1279 | /// waiting for asynchronous 1xx control message processing | |
1280 | void | |
de48b288 A |
1281 | HttpStateData::processReply() |
1282 | { | |
655daa06 AR |
1283 | |
1284 | if (flags.handling1xx) { // we came back after handling a 1xx response | |
1285 | debugs(11, 5, HERE << "done with 1xx handling"); | |
1286 | flags.handling1xx = false; | |
1287 | Must(!flags.headers_parsed); | |
1288 | } | |
1289 | ||
d2b604ec AR |
1290 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
1291 | abortTransaction("store entry aborted while we were waiting for processReply()"); | |
1292 | return; | |
1293 | } | |
1294 | ||
ba82c452 | 1295 | if (!flags.headers_parsed) { // have not parsed headers yet? |
ba82c452 | 1296 | processReplyHeader(); |
ba82c452 | 1297 | |
1298 | if (!continueAfterParsingHeader()) // parsing error or need more data | |
1299 | return; // TODO: send errors to ICAP | |
1300 | ||
ab593f19 | 1301 | adaptOrFinalizeReply(); // may write to, abort, or "close" the entry |
ba82c452 | 1302 | } |
1303 | ||
1304 | // kick more reads if needed and/or process the response body, if any | |
ba82c452 | 1305 | processReplyBody(); // may call serverComplete() |
ba82c452 | 1306 | } |
1307 | ||
073ba374 AJ |
1308 | /** |
1309 | \retval true if we can continue with processing the body or doing ICAP. | |
1310 | */ | |
ba82c452 | 1311 | bool |
1312 | HttpStateData::continueAfterParsingHeader() | |
1313 | { | |
655daa06 AR |
1314 | if (flags.handling1xx) { |
1315 | debugs(11, 5, HERE << "wait for 1xx handling"); | |
1316 | Must(!flags.headers_parsed); | |
1317 | return false; | |
1318 | } | |
1319 | ||
073ba374 | 1320 | if (!flags.headers_parsed && !eof) { |
395a814a | 1321 | debugs(11, 9, "needs more at " << inBuf.length()); |
46f4b111 | 1322 | flags.do_next_read = true; |
073ba374 AJ |
1323 | /** \retval false If we have not finished parsing the headers and may get more data. |
1324 | * Schedules more reads to retrieve the missing data. | |
1325 | */ | |
ba82c452 | 1326 | maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename |
073ba374 | 1327 | return false; |
ba82c452 | 1328 | } |
1329 | ||
073ba374 | 1330 | /** If we are done with parsing, check for errors */ |
ba82c452 | 1331 | |
1332 | err_type error = ERR_NONE; | |
1333 | ||
1334 | if (flags.headers_parsed) { // parsed headers, possibly with errors | |
1335 | // check for header parsing errors | |
585ab260 | 1336 | if (HttpReply *vrep = virginReply()) { |
9b769c67 | 1337 | const Http::StatusCode s = vrep->sline.status(); |
2592bc70 | 1338 | const AnyP::ProtocolVersion &v = vrep->sline.version; |
526ed14e | 1339 | if (s == Http::scInvalidHeader && v != Http::ProtocolVersion(0,9)) { |
51b5dcf5 | 1340 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry->url() << " AKA " << request->url); |
ba82c452 | 1341 | error = ERR_INVALID_RESP; |
955394ce | 1342 | } else if (s == Http::scHeaderTooLarge) { |
e1381638 AJ |
1343 | fwd->dontRetry(true); |
1344 | error = ERR_TOO_BIG; | |
3e42b356 AR |
1345 | } else if (vrep->header.conflictingContentLength()) { |
1346 | fwd->dontRetry(true); | |
1347 | error = ERR_INVALID_RESP; | |
f6dd87e9 AJ |
1348 | } else if (vrep->header.unsupportedTe()) { |
1349 | fwd->dontRetry(true); | |
1350 | error = ERR_INVALID_RESP; | |
e1381638 AJ |
1351 | } else { |
1352 | return true; // done parsing, got reply, and no error | |
1353 | } | |
ba82c452 | 1354 | } else { |
1355 | // parsed headers but got no reply | |
51b5dcf5 | 1356 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: No reply at all for " << entry->url() << " AKA " << request->url); |
ba82c452 | 1357 | error = ERR_INVALID_RESP; |
62e76326 | 1358 | } |
090089c4 | 1359 | } else { |
ba82c452 | 1360 | assert(eof); |
395a814a | 1361 | if (inBuf.length()) { |
9121eba6 | 1362 | error = ERR_INVALID_RESP; |
51b5dcf5 | 1363 | debugs(11, DBG_IMPORTANT, "WARNING: HTTP: Invalid Response: Headers did not parse at all for " << entry->url() << " AKA " << request->url); |
9121eba6 AJ |
1364 | } else { |
1365 | error = ERR_ZERO_SIZE_OBJECT; | |
51b5dcf5 | 1366 | debugs(11, (request->flags.accelerated?DBG_IMPORTANT:2), "WARNING: HTTP: Invalid Response: No object data received for " << entry->url() << " AKA " << request->url); |
9121eba6 | 1367 | } |
2afaba07 | 1368 | } |
ba82c452 | 1369 | |
1370 | assert(error != ERR_NONE); | |
1371 | entry->reset(); | |
7e6eabbc | 1372 | fwd->fail(new ErrorState(error, Http::scBadGateway, fwd->request, fwd->al)); |
46f4b111 | 1373 | flags.do_next_read = false; |
398bc066 CT |
1374 | closeServer(); |
1375 | mustStop("HttpStateData::continueAfterParsingHeader"); | |
ba82c452 | 1376 | return false; // quit on error |
2afaba07 | 1377 | } |
1378 | ||
821beb5e AR |
1379 | /** truncate what we read if we read too much so that writeReplyBody() |
1380 | writes no more than what we should have read */ | |
1381 | void | |
1382 | HttpStateData::truncateVirginBody() | |
1383 | { | |
1384 | assert(flags.headers_parsed); | |
1385 | ||
1386 | HttpReply *vrep = virginReply(); | |
1387 | int64_t clen = -1; | |
1388 | if (!vrep->expectingBody(request->method, clen) || clen < 0) | |
1389 | return; // no body or a body of unknown size, including chunked | |
1390 | ||
8e100780 | 1391 | if (payloadSeen - payloadTruncated <= clen) |
821beb5e AR |
1392 | return; // we did not read too much or already took care of the extras |
1393 | ||
8e100780 | 1394 | if (const int64_t extras = payloadSeen - payloadTruncated - clen) { |
821beb5e | 1395 | // server sent more that the advertised content length |
8e100780 | 1396 | debugs(11, 5, "payloadSeen=" << payloadSeen << |
e1381638 | 1397 | " clen=" << clen << '/' << vrep->content_length << |
2f8abb64 | 1398 | " truncated=" << payloadTruncated << '+' << extras); |
821beb5e | 1399 | |
395a814a | 1400 | inBuf.chop(0, inBuf.length() - extras); |
8e100780 | 1401 | payloadTruncated += extras; |
821beb5e AR |
1402 | } |
1403 | } | |
1404 | ||
073ba374 | 1405 | /** |
2afaba07 | 1406 | * Call this when there is data from the origin server |
1407 | * which should be sent to either StoreEntry, or to ICAP... | |
1408 | */ | |
1409 | void | |
5f8252d2 | 1410 | HttpStateData::writeReplyBody() |
2afaba07 | 1411 | { |
821beb5e | 1412 | truncateVirginBody(); // if needed |
395a814a AJ |
1413 | const char *data = inBuf.rawContent(); |
1414 | int len = inBuf.length(); | |
bc81cb2b | 1415 | addVirginReplyBody(data, len); |
395a814a | 1416 | inBuf.consume(len); |
ba3fe8d9 EB |
1417 | |
1418 | // after addVirginReplyBody() wrote (when not adapting) everything we have | |
1419 | // received to Store, check whether we have received/parsed the entire reply | |
1420 | int64_t clen = -1; | |
1421 | const char *parsedWhole = nullptr; | |
1422 | if (!virginReply()->expectingBody(request->method, clen)) | |
1423 | parsedWhole = "http parsed header-only reply"; | |
1424 | else if (clen >= 0 && clen == payloadSeen - payloadTruncated) | |
1425 | parsedWhole = "http parsed Content-Length body bytes"; | |
1426 | else if (clen < 0 && eof) | |
1427 | parsedWhole = "http parsed body ending with expected/required EOF"; | |
1428 | if (parsedWhole) | |
1429 | markParsedVirginReplyAsWhole(parsedWhole); | |
af0bb8e5 | 1430 | } |
fc68f6b1 | 1431 | |
af0bb8e5 | 1432 | bool |
1433 | HttpStateData::decodeAndWriteReplyBody() | |
1434 | { | |
af0bb8e5 | 1435 | assert(flags.chunked); |
1436 | assert(httpChunkDecoder); | |
3a89d435 AR |
1437 | try { |
1438 | MemBuf decodedData; | |
1439 | decodedData.init(); | |
1440 | httpChunkDecoder->setPayloadBuffer(&decodedData); | |
1441 | const bool doneParsing = httpChunkDecoder->parse(inBuf); | |
1442 | inBuf = httpChunkDecoder->remaining(); // sync buffers after parse | |
1443 | addVirginReplyBody(decodedData.content(), decodedData.contentSize()); | |
1444 | if (doneParsing) { | |
1445 | lastChunk = 1; | |
1446 | flags.do_next_read = false; | |
ba3fe8d9 | 1447 | markParsedVirginReplyAsWhole("http parsed last-chunk"); |
3a89d435 AR |
1448 | } |
1449 | return true; | |
af0bb8e5 | 1450 | } |
3a89d435 AR |
1451 | catch (...) { |
1452 | debugs (11, 2, "de-chunking failure: " << CurrentException); | |
1453 | } | |
1454 | return false; | |
e6ccf245 | 1455 | } |
1456 | ||
073ba374 | 1457 | /** |
2afaba07 | 1458 | * processReplyBody has two purposes: |
1459 | * 1 - take the reply body data, if any, and put it into either | |
1460 | * the StoreEntry, or give it over to ICAP. | |
1461 | * 2 - see if we made it to the end of the response (persistent | |
1462 | * connections and such) | |
1463 | */ | |
e6ccf245 | 1464 | void |
2afaba07 | 1465 | HttpStateData::processReplyBody() |
e6ccf245 | 1466 | { |
1a98175f | 1467 | if (!flags.headers_parsed) { |
46f4b111 | 1468 | flags.do_next_read = true; |
5f8252d2 | 1469 | maybeReadVirginBody(); |
62e76326 | 1470 | return; |
528b2c61 | 1471 | } |
62e76326 | 1472 | |
a83c6ed6 | 1473 | #if USE_ADAPTATION |
c30ac6ea | 1474 | debugs(11,5, HERE << "adaptationAccessCheckPending=" << adaptationAccessCheckPending); |
a83c6ed6 | 1475 | if (adaptationAccessCheckPending) |
2afaba07 | 1476 | return; |
fc68f6b1 | 1477 | |
2afaba07 | 1478 | #endif |
62e76326 | 1479 | |
2afaba07 | 1480 | /* |
1481 | * At this point the reply headers have been parsed and consumed. | |
1482 | * That means header content has been removed from readBuf and | |
1483 | * it contains only body data. | |
1484 | */ | |
ef85ab2f DK |
1485 | if (entry->isAccepting()) { |
1486 | if (flags.chunked) { | |
1487 | if (!decodeAndWriteReplyBody()) { | |
46f4b111 | 1488 | flags.do_next_read = false; |
ef85ab2f DK |
1489 | serverComplete(); |
1490 | return; | |
1491 | } | |
1492 | } else | |
1493 | writeReplyBody(); | |
1494 | } | |
528b2c61 | 1495 | |
abf396ec AR |
1496 | // storing/sending methods like earlier adaptOrFinalizeReply() or |
1497 | // above writeReplyBody() may release/abort the store entry. | |
e6ccf245 | 1498 | if (EBIT_TEST(entry->flags, ENTRY_ABORTED)) { |
abf396ec AR |
1499 | // TODO: In some cases (e.g., 304), we should keep persistent conn open. |
1500 | // Detect end-of-reply (and, hence, pool our idle pconn) earlier (ASAP). | |
6dd9a2e4 AJ |
1501 | abortTransaction("store entry aborted while storing reply"); |
1502 | return; | |
62e76326 | 1503 | } else |
1504 | switch (persistentConnStatus()) { | |
dc49061a | 1505 | case INCOMPLETE_MSG: { |
3e4bebf8 | 1506 | debugs(11, 5, "processReplyBody: INCOMPLETE_MSG from " << serverConnection); |
21b92762 | 1507 | /* Wait for more data or EOF condition */ |
8d77a37c | 1508 | AsyncCall::Pointer nil; |
21b92762 | 1509 | if (flags.keepalive_broken) { |
8d77a37c | 1510 | commSetConnTimeout(serverConnection, 10, nil); |
21b92762 | 1511 | } else { |
8d77a37c | 1512 | commSetConnTimeout(serverConnection, Config.Timeout.read, nil); |
21b92762 | 1513 | } |
1514 | ||
46f4b111 | 1515 | flags.do_next_read = true; |
dc49061a A |
1516 | } |
1517 | break; | |
62e76326 | 1518 | |
801cfc26 | 1519 | case COMPLETE_PERSISTENT_MSG: { |
3e4bebf8 | 1520 | debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG from " << serverConnection); |
801cfc26 CT |
1521 | |
1522 | // TODO: Remove serverConnectionSaved but preserve exception safety. | |
1523 | ||
8d77a37c | 1524 | commUnsetConnTimeout(serverConnection); |
46f4b111 | 1525 | flags.do_next_read = false; |
62e76326 | 1526 | |
8d71285d | 1527 | comm_remove_close_handler(serverConnection->fd, closeHandler); |
dc56a9b1 | 1528 | closeHandler = NULL; |
fc68f6b1 | 1529 | |
801cfc26 | 1530 | Ip::Address client_addr; // XXX: Remove as unused. Why was it added? |
450fe1cb | 1531 | if (request->flags.spoofClientIp) |
e24f13cd | 1532 | client_addr = request->client_addr; |
fc68f6b1 | 1533 | |
801cfc26 CT |
1534 | auto serverConnectionSaved = serverConnection; |
1535 | fwd->unregister(serverConnection); | |
1536 | serverConnection = nullptr; | |
1537 | ||
1538 | bool ispinned = false; // TODO: Rename to isOrShouldBePinned | |
45e5102d | 1539 | if (request->flags.pinned) { |
9e008dda | 1540 | ispinned = true; |
450fe1cb | 1541 | } else if (request->flags.connectionAuth && request->flags.authSent) { |
9e008dda AJ |
1542 | ispinned = true; |
1543 | } | |
1544 | ||
801cfc26 CT |
1545 | if (ispinned) { |
1546 | if (request->clientConnectionManager.valid()) { | |
1547 | CallJobHere1(11, 4, request->clientConnectionManager, | |
1548 | ConnStateData, | |
1549 | notePinnedConnectionBecameIdle, | |
1550 | ConnStateData::PinnedIdleContext(serverConnectionSaved, request)); | |
1551 | } else { | |
1552 | // must not pool/share ispinned connections, even orphaned ones | |
1553 | serverConnectionSaved->close(); | |
1554 | } | |
bd0723ad | 1555 | } else { |
55622953 | 1556 | fwdPconnPool->push(serverConnectionSaved, request->url.host()); |
bd0723ad | 1557 | } |
1558 | ||
5f8252d2 | 1559 | serverComplete(); |
62e76326 | 1560 | return; |
801cfc26 | 1561 | } |
62e76326 | 1562 | |
1563 | case COMPLETE_NONPERSISTENT_MSG: | |
3e4bebf8 | 1564 | debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG from " << serverConnection); |
6c36866e | 1565 | |
5f8252d2 | 1566 | serverComplete(); |
62e76326 | 1567 | return; |
1568 | } | |
1569 | ||
5f8252d2 | 1570 | maybeReadVirginBody(); |
c4b7a5a9 | 1571 | } |
1572 | ||
aea65fec AR |
1573 | bool |
1574 | HttpStateData::mayReadVirginReplyBody() const | |
1575 | { | |
1576 | // TODO: Be more precise here. For example, if/when reading trailer, we may | |
1577 | // not be doneWithServer() yet, but we should return false. Similarly, we | |
1578 | // could still be writing the request body after receiving the whole reply. | |
1579 | return !doneWithServer(); | |
1580 | } | |
1581 | ||
c4b7a5a9 | 1582 | void |
5f8252d2 | 1583 | HttpStateData::maybeReadVirginBody() |
c4b7a5a9 | 1584 | { |
85bef0a7 AR |
1585 | // too late to read |
1586 | if (!Comm::IsConnOpen(serverConnection) || fd_table[serverConnection->fd].closing()) | |
1587 | return; | |
1588 | ||
1ad68518 AJ |
1589 | if (!maybeMakeSpaceAvailable(false)) |
1590 | return; | |
1591 | ||
1592 | // XXX: get rid of the do_next_read flag | |
1593 | // check for the proper reasons preventing read(2) | |
1594 | if (!flags.do_next_read) | |
1595 | return; | |
1596 | ||
1597 | flags.do_next_read = false; | |
1598 | ||
1599 | // must not already be waiting for read(2) ... | |
1600 | assert(!Comm::MonitorsRead(serverConnection->fd)); | |
1601 | ||
1602 | // wait for read(2) to be possible. | |
1603 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
1604 | AsyncCall::Pointer call = JobCallback(11, 5, Dialer, this, HttpStateData::readReply); | |
1605 | Comm::Read(serverConnection, call); | |
1606 | } | |
1607 | ||
1608 | bool | |
1609 | HttpStateData::maybeMakeSpaceAvailable(bool doGrow) | |
1610 | { | |
57912702 AJ |
1611 | // how much we are allowed to buffer |
1612 | const int limitBuffer = (flags.headers_parsed ? Config.readAheadGap : Config.maxReplyHeaderSize); | |
2afaba07 | 1613 | |
57912702 AJ |
1614 | if (limitBuffer < 0 || inBuf.length() >= (SBuf::size_type)limitBuffer) { |
1615 | // when buffer is at or over limit already | |
61beade2 | 1616 | debugs(11, 7, "will not read up to " << limitBuffer << ". buffer has (" << inBuf.length() << "/" << inBuf.spaceSize() << ") from " << serverConnection); |
57912702 AJ |
1617 | debugs(11, DBG_DATA, "buffer has {" << inBuf << "}"); |
1618 | // Process next response from buffer | |
1619 | processReply(); | |
1ad68518 | 1620 | return false; |
57912702 AJ |
1621 | } |
1622 | ||
1623 | // how much we want to read | |
5867ac79 | 1624 | const size_t read_size = calcBufferSpaceToReserve(inBuf.spaceSize(), (limitBuffer - inBuf.length())); |
57912702 | 1625 | |
5867ac79 | 1626 | if (!read_size) { |
61beade2 | 1627 | debugs(11, 7, "will not read up to " << read_size << " into buffer (" << inBuf.length() << "/" << inBuf.spaceSize() << ") from " << serverConnection); |
1ad68518 | 1628 | return false; |
57912702 AJ |
1629 | } |
1630 | ||
61beade2 | 1631 | // just report whether we could grow or not, do not actually do it |
1ad68518 AJ |
1632 | if (doGrow) |
1633 | return (read_size >= 2); | |
1634 | ||
57912702 AJ |
1635 | // we may need to grow the buffer |
1636 | inBuf.reserveSpace(read_size); | |
61beade2 | 1637 | debugs(11, 8, (!flags.do_next_read ? "will not" : "may") << |
57912702 AJ |
1638 | " read up to " << read_size << " bytes info buf(" << inBuf.length() << "/" << inBuf.spaceSize() << |
1639 | ") from " << serverConnection); | |
2afaba07 | 1640 | |
1ad68518 | 1641 | return (inBuf.spaceSize() >= 2); // only read if there is 1+ bytes of space available |
090089c4 | 1642 | } |
1643 | ||
39cb8c41 | 1644 | /// called after writing the very last request byte (body, last-chunk, etc) |
d576a6a6 | 1645 | void |
39cb8c41 | 1646 | HttpStateData::wroteLast(const CommIoCbParams &io) |
090089c4 | 1647 | { |
9cf7de1b | 1648 | debugs(11, 5, HERE << serverConnection << ": size " << io.size << ": errflag " << io.flag << "."); |
bc87dc25 | 1649 | #if URL_CHECKSUM_DEBUG |
62e76326 | 1650 | |
528b2c61 | 1651 | entry->mem_obj->checkUrlChecksum(); |
bc87dc25 | 1652 | #endif |
62e76326 | 1653 | |
d8165775 AR |
1654 | // XXX: Keep in sync with Client::sentRequestBody(). |
1655 | // TODO: Extract common parts. | |
1656 | ||
dc56a9b1 | 1657 | if (io.size > 0) { |
49ae8b95 | 1658 | fd_bytes(io.fd, io.size, FD_WRITE); |
a0864754 AJ |
1659 | statCounter.server.all.kbytes_out += io.size; |
1660 | statCounter.server.http.kbytes_out += io.size; | |
ee1679df | 1661 | } |
62e76326 | 1662 | |
c8407295 | 1663 | if (io.flag == Comm::ERR_CLOSING) |
62e76326 | 1664 | return; |
1665 | ||
d8165775 AR |
1666 | // both successful and failed writes affect response times |
1667 | request->hier.notePeerWrite(); | |
1668 | ||
dc56a9b1 | 1669 | if (io.flag) { |
7e6eabbc | 1670 | const auto err = new ErrorState(ERR_WRITE_ERROR, Http::scBadGateway, fwd->request, fwd->al); |
dc56a9b1 | 1671 | err->xerrno = io.xerrno; |
1672 | fwd->fail(err); | |
398bc066 CT |
1673 | closeServer(); |
1674 | mustStop("HttpStateData::wroteLast"); | |
62e76326 | 1675 | return; |
090089c4 | 1676 | } |
72b63f06 | 1677 | |
39cb8c41 AR |
1678 | sendComplete(); |
1679 | } | |
1680 | ||
1681 | /// successfully wrote the entire request (including body, last-chunk, etc.) | |
1682 | void | |
1683 | HttpStateData::sendComplete() | |
1684 | { | |
2afaba07 | 1685 | /* |
1686 | * Set the read timeout here because it hasn't been set yet. | |
1687 | * We only set the read timeout after the request has been | |
d5430dc8 | 1688 | * fully written to the peer. If we start the timeout |
2afaba07 | 1689 | * after connection establishment, then we are likely to hit |
1690 | * the timeout for POST/PUT requests that have very large | |
1691 | * request bodies. | |
1692 | */ | |
dc56a9b1 | 1693 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 1694 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 1695 | TimeoutDialer, this, HttpStateData::httpTimeout); |
2afaba07 | 1696 | |
8d77a37c | 1697 | commSetConnTimeout(serverConnection, Config.Timeout.read, timeoutCall); |
46f4b111 | 1698 | flags.request_sent = true; |
090089c4 | 1699 | } |
1700 | ||
2afaba07 | 1701 | void |
5f8252d2 | 1702 | HttpStateData::closeServer() |
2afaba07 | 1703 | { |
9cf7de1b | 1704 | debugs(11,5, HERE << "closing HTTP server " << serverConnection << " this " << this); |
fc68f6b1 | 1705 | |
9cf7de1b | 1706 | if (Comm::IsConnOpen(serverConnection)) { |
8d71285d AJ |
1707 | fwd->unregister(serverConnection); |
1708 | comm_remove_close_handler(serverConnection->fd, closeHandler); | |
dc56a9b1 | 1709 | closeHandler = NULL; |
8d71285d | 1710 | serverConnection->close(); |
2afaba07 | 1711 | } |
5f8252d2 | 1712 | } |
2afaba07 | 1713 | |
5f8252d2 | 1714 | bool |
1715 | HttpStateData::doneWithServer() const | |
1716 | { | |
9cf7de1b | 1717 | return !Comm::IsConnOpen(serverConnection); |
2afaba07 | 1718 | } |
1719 | ||
ee0b94f4 HN |
1720 | /* |
1721 | * Fixup authentication request headers for special cases | |
1722 | */ | |
1723 | static void | |
bad9c5e4 | 1724 | httpFixupAuthentication(HttpRequest * request, const HttpHeader * hdr_in, HttpHeader * hdr_out, const Http::StateFlags &flags) |
ee0b94f4 | 1725 | { |
ee0b94f4 | 1726 | /* Nothing to do unless we are forwarding to a peer */ |
f5e17947 CT |
1727 | if (!flags.peering) |
1728 | return; | |
1729 | ||
1730 | // This request is going "through" rather than "to" our _peer. | |
1731 | if (flags.tunneling) | |
f54f527e | 1732 | return; |
ee0b94f4 HN |
1733 | |
1734 | /* Needs to be explicitly enabled */ | |
e24f13cd | 1735 | if (!request->peer_login) |
f54f527e | 1736 | return; |
ee0b94f4 | 1737 | |
f5e17947 | 1738 | const auto header = flags.toOrigin ? Http::HdrType::AUTHORIZATION : Http::HdrType::PROXY_AUTHORIZATION; |
ee0b94f4 HN |
1739 | /* Maybe already dealt with? */ |
1740 | if (hdr_out->has(header)) | |
f54f527e | 1741 | return; |
ee0b94f4 HN |
1742 | |
1743 | /* Nothing to do here for PASSTHRU */ | |
e24f13cd | 1744 | if (strcmp(request->peer_login, "PASSTHRU") == 0) |
f54f527e | 1745 | return; |
ee0b94f4 | 1746 | |
f5e17947 CT |
1747 | // Dangerous and undocumented PROXYPASS is a single-signon to servers with |
1748 | // the proxy password. Only Basic Authentication can work this way. This | |
1749 | // statement forwards a "basic" Proxy-Authorization value from our client | |
1750 | // to an originserver peer. Other PROXYPASS cases are handled lower. | |
1751 | if (flags.toOrigin && | |
63ed43c5 | 1752 | strcmp(request->peer_login, "PROXYPASS") == 0 && |
1753 | hdr_in->has(Http::HdrType::PROXY_AUTHORIZATION)) { | |
f5e17947 | 1754 | |
789217a2 | 1755 | const char *auth = hdr_in->getStr(Http::HdrType::PROXY_AUTHORIZATION); |
ee0b94f4 | 1756 | |
f54f527e AJ |
1757 | if (auth && strncasecmp(auth, "basic ", 6) == 0) { |
1758 | hdr_out->putStr(header, auth); | |
1759 | return; | |
1760 | } | |
ee0b94f4 HN |
1761 | } |
1762 | ||
1d11e9b3 | 1763 | char loginbuf[base64_encode_len(MAX_LOGIN_SZ)]; |
aadbbd7d AJ |
1764 | size_t blen; |
1765 | struct base64_encode_ctx ctx; | |
1766 | base64_encode_init(&ctx); | |
1767 | ||
ee0b94f4 | 1768 | /* Special mode to pass the username to the upstream cache */ |
e24f13cd | 1769 | if (*request->peer_login == '*') { |
f54f527e | 1770 | const char *username = "-"; |
ee0b94f4 | 1771 | |
e24f13cd CT |
1772 | if (request->extacl_user.size()) |
1773 | username = request->extacl_user.termedBuf(); | |
2f1431ea | 1774 | #if USE_AUTH |
e24f13cd CT |
1775 | else if (request->auth_user_request != NULL) |
1776 | username = request->auth_user_request->username(); | |
2f1431ea | 1777 | #endif |
ee0b94f4 | 1778 | |
aadbbd7d AJ |
1779 | blen = base64_encode_update(&ctx, loginbuf, strlen(username), reinterpret_cast<const uint8_t*>(username)); |
1780 | blen += base64_encode_update(&ctx, loginbuf+blen, strlen(request->peer_login +1), reinterpret_cast<const uint8_t*>(request->peer_login +1)); | |
1781 | blen += base64_encode_final(&ctx, loginbuf+blen); | |
bb64d879 | 1782 | httpHeaderPutStrf(hdr_out, header, "Basic %.*s", (int)blen, loginbuf); |
f54f527e | 1783 | return; |
ee0b94f4 HN |
1784 | } |
1785 | ||
1786 | /* external_acl provided credentials */ | |
e24f13cd CT |
1787 | if (request->extacl_user.size() && request->extacl_passwd.size() && |
1788 | (strcmp(request->peer_login, "PASS") == 0 || | |
1789 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
aadbbd7d AJ |
1790 | |
1791 | blen = base64_encode_update(&ctx, loginbuf, request->extacl_user.size(), reinterpret_cast<const uint8_t*>(request->extacl_user.rawBuf())); | |
1792 | blen += base64_encode_update(&ctx, loginbuf+blen, 1, reinterpret_cast<const uint8_t*>(":")); | |
1793 | blen += base64_encode_update(&ctx, loginbuf+blen, request->extacl_passwd.size(), reinterpret_cast<const uint8_t*>(request->extacl_passwd.rawBuf())); | |
1794 | blen += base64_encode_final(&ctx, loginbuf+blen); | |
bb64d879 | 1795 | httpHeaderPutStrf(hdr_out, header, "Basic %.*s", (int)blen, loginbuf); |
f54f527e | 1796 | return; |
ee0b94f4 | 1797 | } |
8fdaa8af AJ |
1798 | // if no external user credentials are available to fake authentication with PASS acts like PASSTHRU |
1799 | if (strcmp(request->peer_login, "PASS") == 0) | |
28204b3b | 1800 | return; |
ee0b94f4 | 1801 | |
9ca29d23 | 1802 | /* Kerberos login to peer */ |
2f1431ea | 1803 | #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI |
e24f13cd | 1804 | if (strncmp(request->peer_login, "NEGOTIATE",strlen("NEGOTIATE")) == 0) { |
9ca29d23 AJ |
1805 | char *Token=NULL; |
1806 | char *PrincipalName=NULL,*p; | |
9825b398 AJ |
1807 | int negotiate_flags = 0; |
1808 | ||
e24f13cd | 1809 | if ((p=strchr(request->peer_login,':')) != NULL ) { |
9ca29d23 AJ |
1810 | PrincipalName=++p; |
1811 | } | |
9825b398 AJ |
1812 | if (request->flags.auth_no_keytab) { |
1813 | negotiate_flags |= PEER_PROXY_NEGOTIATE_NOKEYTAB; | |
1814 | } | |
1815 | Token = peer_proxy_negotiate_auth(PrincipalName, request->peer_host, negotiate_flags); | |
9ca29d23 | 1816 | if (Token) { |
63f03f79 | 1817 | httpHeaderPutStrf(hdr_out, header, "Negotiate %s",Token); |
9ca29d23 AJ |
1818 | } |
1819 | return; | |
1820 | } | |
1821 | #endif /* HAVE_KRB5 && HAVE_GSSAPI */ | |
1822 | ||
aadbbd7d AJ |
1823 | blen = base64_encode_update(&ctx, loginbuf, strlen(request->peer_login), reinterpret_cast<const uint8_t*>(request->peer_login)); |
1824 | blen += base64_encode_final(&ctx, loginbuf+blen); | |
bb64d879 | 1825 | httpHeaderPutStrf(hdr_out, header, "Basic %.*s", (int)blen, loginbuf); |
ee0b94f4 HN |
1826 | return; |
1827 | } | |
1828 | ||
99edd1c3 | 1829 | /* |
9e008dda | 1830 | * build request headers and append them to a given MemBuf |
e5ee81f0 | 1831 | * used by buildRequestPrefix() |
818c6c9e | 1832 | * note: initialised the HttpHeader, the caller is responsible for Clean()-ing |
99edd1c3 | 1833 | */ |
e1e72f06 | 1834 | void |
e5ee81f0 | 1835 | HttpStateData::httpBuildRequestHeader(HttpRequest * request, |
e5ee81f0 | 1836 | StoreEntry * entry, |
4bf68cfa | 1837 | const AccessLogEntryPointer &al, |
e5ee81f0 | 1838 | HttpHeader * hdr_out, |
bad9c5e4 | 1839 | const Http::StateFlags &flags) |
6bf8443a | 1840 | { |
99edd1c3 | 1841 | /* building buffer for complex strings */ |
5999b776 | 1842 | #define BBUF_SZ (MAX_URL+32) |
99edd1c3 | 1843 | LOCAL_ARRAY(char, bbuf, BBUF_SZ); |
67c06f0d | 1844 | LOCAL_ARRAY(char, ntoabuf, MAX_IPSTRLEN); |
e24f13cd | 1845 | const HttpHeader *hdr_in = &request->header; |
67c06f0d | 1846 | const HttpHeaderEntry *e = NULL; |
99edd1c3 | 1847 | HttpHeaderPos pos = HttpHeaderInitPos; |
75faaa7a | 1848 | assert (hdr_out->owner == hoRequest); |
62e76326 | 1849 | |
46017fdd | 1850 | /* use our IMS header if the cached entry has Last-Modified time */ |
fa3e249f | 1851 | if (request->lastmod > -1) |
789217a2 | 1852 | hdr_out->putTime(Http::HdrType::IF_MODIFIED_SINCE, request->lastmod); |
99edd1c3 | 1853 | |
46017fdd CT |
1854 | // Add our own If-None-Match field if the cached entry has a strong ETag. |
1855 | // copyOneHeaderFromClientsideRequestToUpstreamRequest() adds client ones. | |
b38b26cb | 1856 | if (request->etag.size() > 0) { |
d5f18517 | 1857 | hdr_out->addEntry(new HttpHeaderEntry(Http::HdrType::IF_NONE_MATCH, SBuf(), |
7f754be8 | 1858 | request->etag.termedBuf())); |
46017fdd CT |
1859 | } |
1860 | ||
e24f13cd | 1861 | bool we_do_ranges = decideIfWeDoRanges (request); |
528b2c61 | 1862 | |
789217a2 | 1863 | String strConnection (hdr_in->getList(Http::HdrType::CONNECTION)); |
62e76326 | 1864 | |
a9925b40 | 1865 | while ((e = hdr_in->getEntry(&pos))) |
e24f13cd | 1866 | copyOneHeaderFromClientsideRequestToUpstreamRequest(e, strConnection, request, hdr_out, we_do_ranges, flags); |
528b2c61 | 1867 | |
43ae1d95 | 1868 | /* Abstraction break: We should interpret multipart/byterange responses |
528b2c61 | 1869 | * into offset-length data, and this works around our inability to do so. |
1870 | */ | |
e24f13cd | 1871 | if (!we_do_ranges && request->multipartRangeRequest()) { |
62e76326 | 1872 | /* don't cache the result */ |
e857372a | 1873 | request->flags.cachable = false; |
62e76326 | 1874 | /* pretend it's not a range request */ |
f0baf149 | 1875 | request->ignoreRange("want to request the whole object"); |
e857372a | 1876 | request->flags.isRanged = false; |
62e76326 | 1877 | } |
528b2c61 | 1878 | |
90be6ff5 | 1879 | hdr_out->addVia(request->http_ver, hdr_in); |
62e76326 | 1880 | |
45e5102d | 1881 | if (request->flags.accelerated) { |
43ae1d95 | 1882 | /* Append Surrogate-Capabilities */ |
789217a2 | 1883 | String strSurrogate(hdr_in->getList(Http::HdrType::SURROGATE_CAPABILITY)); |
45cca89d AJ |
1884 | #if USE_SQUID_ESI |
1885 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0 ESI/1.0\"", Config.Accel.surrogate_id); | |
1886 | #else | |
1887 | snprintf(bbuf, BBUF_SZ, "%s=\"Surrogate/1.0\"", Config.Accel.surrogate_id); | |
1888 | #endif | |
43ae1d95 | 1889 | strListAdd(&strSurrogate, bbuf, ','); |
789217a2 | 1890 | hdr_out->putStr(Http::HdrType::SURROGATE_CAPABILITY, strSurrogate.termedBuf()); |
43ae1d95 | 1891 | } |
43ae1d95 | 1892 | |
67c06f0d | 1893 | /** \pre Handle X-Forwarded-For */ |
9e008dda | 1894 | if (strcmp(opt_forwarded_for, "delete") != 0) { |
c4f30223 | 1895 | |
789217a2 | 1896 | String strFwd = hdr_in->getList(Http::HdrType::X_FORWARDED_FOR); |
c4f30223 | 1897 | |
70df76e3 AR |
1898 | // if we cannot double strFwd size, then it grew past 50% of the limit |
1899 | if (!strFwd.canGrowBy(strFwd.size())) { | |
c4f30223 AR |
1900 | // There is probably a forwarding loop with Via detection disabled. |
1901 | // If we do nothing, String will assert on overflow soon. | |
1902 | // TODO: Terminate all transactions with huge XFF? | |
1903 | strFwd = "error"; | |
1904 | ||
1905 | static int warnedCount = 0; | |
1906 | if (warnedCount++ < 100) { | |
851feda6 | 1907 | const SBuf url(entry ? SBuf(entry->url()) : request->effectiveRequestUri()); |
d816f28d | 1908 | debugs(11, DBG_IMPORTANT, "WARNING: likely forwarding loop with " << url); |
c4f30223 AR |
1909 | } |
1910 | } | |
1911 | ||
9e008dda | 1912 | if (strcmp(opt_forwarded_for, "on") == 0) { |
67c06f0d | 1913 | /** If set to ON - append client IP or 'unknown'. */ |
4dd643d5 | 1914 | if ( request->client_addr.isNoAddr() ) |
67c06f0d AJ |
1915 | strListAdd(&strFwd, "unknown", ','); |
1916 | else | |
4dd643d5 | 1917 | strListAdd(&strFwd, request->client_addr.toStr(ntoabuf, MAX_IPSTRLEN), ','); |
9e008dda | 1918 | } else if (strcmp(opt_forwarded_for, "off") == 0) { |
67c06f0d | 1919 | /** If set to OFF - append 'unknown'. */ |
67c06f0d | 1920 | strListAdd(&strFwd, "unknown", ','); |
9e008dda | 1921 | } else if (strcmp(opt_forwarded_for, "transparent") == 0) { |
67c06f0d | 1922 | /** If set to TRANSPARENT - pass through unchanged. */ |
9e008dda | 1923 | } else if (strcmp(opt_forwarded_for, "truncate") == 0) { |
67c06f0d | 1924 | /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */ |
4dd643d5 | 1925 | if ( request->client_addr.isNoAddr() ) |
67c06f0d AJ |
1926 | strFwd = "unknown"; |
1927 | else | |
4dd643d5 | 1928 | strFwd = request->client_addr.toStr(ntoabuf, MAX_IPSTRLEN); |
67c06f0d | 1929 | } |
9e008dda | 1930 | if (strFwd.size() > 0) |
789217a2 | 1931 | hdr_out->putStr(Http::HdrType::X_FORWARDED_FOR, strFwd.termedBuf()); |
cc192b50 | 1932 | } |
67c06f0d | 1933 | /** If set to DELETE - do not copy through. */ |
6bccf575 | 1934 | |
99edd1c3 | 1935 | /* append Host if not there already */ |
789217a2 | 1936 | if (!hdr_out->has(Http::HdrType::HOST)) { |
e24f13cd | 1937 | if (request->peer_domain) { |
789217a2 | 1938 | hdr_out->putStr(Http::HdrType::HOST, request->peer_domain); |
62e76326 | 1939 | } else { |
5c51bffb | 1940 | SBuf authority = request->url.authority(); |
789217a2 | 1941 | hdr_out->putStr(Http::HdrType::HOST, authority.c_str()); |
62e76326 | 1942 | } |
6bf8443a | 1943 | } |
62e76326 | 1944 | |
c68e9c6b | 1945 | /* append Authorization if known in URL, not in header and going direct */ |
789217a2 | 1946 | if (!hdr_out->has(Http::HdrType::AUTHORIZATION)) { |
f5e17947 | 1947 | if (flags.toOrigin && !request->url.userInfo().isEmpty()) { |
1d11e9b3 | 1948 | static char result[base64_encode_len(MAX_URL*2)]; // should be big enough for a single URI segment |
aadbbd7d AJ |
1949 | struct base64_encode_ctx ctx; |
1950 | base64_encode_init(&ctx); | |
1951 | size_t blen = base64_encode_update(&ctx, result, request->url.userInfo().length(), reinterpret_cast<const uint8_t*>(request->url.userInfo().rawContent())); | |
1952 | blen += base64_encode_final(&ctx, result+blen); | |
1953 | result[blen] = '\0'; | |
1954 | if (blen) | |
789217a2 | 1955 | httpHeaderPutStrf(hdr_out, Http::HdrType::AUTHORIZATION, "Basic %.*s", (int)blen, result); |
62e76326 | 1956 | } |
c68e9c6b | 1957 | } |
62e76326 | 1958 | |
ee0b94f4 | 1959 | /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */ |
e24f13cd | 1960 | httpFixupAuthentication(request, hdr_in, hdr_out, flags); |
62e76326 | 1961 | |
ee0b94f4 HN |
1962 | /* append Cache-Control, add max-age if not there already */ |
1963 | { | |
a9925b40 | 1964 | HttpHdrCc *cc = hdr_in->getCc(); |
62e76326 | 1965 | |
1966 | if (!cc) | |
a4a03b37 | 1967 | cc = new HttpHdrCc(); |
62e76326 | 1968 | |
af6a12ee | 1969 | /* Add max-age only without no-cache */ |
1259f9cf | 1970 | if (!cc->hasMaxAge() && !cc->hasNoCache()) { |
851feda6 AJ |
1971 | // XXX: performance regression. c_str() reallocates |
1972 | SBuf tmp(request->effectiveRequestUri()); | |
1973 | cc->maxAge(getMaxAge(entry ? entry->url() : tmp.c_str())); | |
62e76326 | 1974 | } |
1975 | ||
ce2d6441 | 1976 | /* Enforce sibling relations */ |
62e76326 | 1977 | if (flags.only_if_cached) |
4ce6e3b5 | 1978 | cc->onlyIfCached(true); |
62e76326 | 1979 | |
a9925b40 | 1980 | hdr_out->putCc(cc); |
62e76326 | 1981 | |
3d7782c1 | 1982 | delete cc; |
6bf8443a | 1983 | } |
62e76326 | 1984 | |
1f482f82 AR |
1985 | // Always send Connection because HTTP/1.0 servers need explicit |
1986 | // "keep-alive", HTTP/1.1 servers need explicit "close", Upgrade recipients | |
1987 | // need bare "upgrade", and we do not always know the server expectations. | |
1988 | if (!hdr_out->has(Http::HdrType::CONNECTION)) // forwardUpgrade() may add it | |
1989 | hdr_out->putStr(Http::HdrType::CONNECTION, flags.keepalive ? "keep-alive" : "close"); | |
62e76326 | 1990 | |
a7ad6e4e | 1991 | /* append Front-End-Https */ |
1992 | if (flags.front_end_https) { | |
4e3f4dc7 | 1993 | if (flags.front_end_https == 1 || request->url.getScheme() == AnyP::PROTO_HTTPS) |
789217a2 | 1994 | hdr_out->putStr(Http::HdrType::FRONT_END_HTTPS, "On"); |
a7ad6e4e | 1995 | } |
1996 | ||
e31a1e67 AR |
1997 | if (flags.chunked_request) { |
1998 | // Do not just copy the original value so that if the client-side | |
1999 | // starts decode other encodings, this code may remain valid. | |
789217a2 | 2000 | hdr_out->putStr(Http::HdrType::TRANSFER_ENCODING, "chunked"); |
39cb8c41 AR |
2001 | } |
2002 | ||
6bccf575 | 2003 | /* Now mangle the headers. */ |
cde8f31b | 2004 | httpHdrMangleList(hdr_out, request, al, ROR_REQUEST); |
f4698e0b | 2005 | |
30abd221 | 2006 | strConnection.clean(); |
99edd1c3 | 2007 | } |
2008 | ||
1c2b4465 CT |
2009 | /// copies from-client Upgrade info into the given to-server header while |
2010 | /// honoring configuration filters and following HTTP requirements | |
2011 | void | |
2012 | HttpStateData::forwardUpgrade(HttpHeader &hdrOut) | |
2013 | { | |
2014 | if (!Config.http_upgrade_request_protocols) | |
2015 | return; // forward nothing by default | |
2016 | ||
2017 | /* RFC 7230 section 6.7 paragraph 10: | |
2018 | * A server MUST ignore an Upgrade header field that is received in | |
2019 | * an HTTP/1.0 request. | |
2020 | */ | |
2021 | if (request->http_ver == Http::ProtocolVersion(1,0)) | |
2022 | return; | |
2023 | ||
2024 | const auto &hdrIn = request->header; | |
2025 | if (!hdrIn.has(Http::HdrType::UPGRADE)) | |
2026 | return; | |
2027 | const auto upgradeIn = hdrIn.getList(Http::HdrType::UPGRADE); | |
2028 | ||
2029 | String upgradeOut; | |
2030 | ||
2031 | ACLFilledChecklist ch(nullptr, request.getRaw()); | |
2032 | ch.al = fwd->al; | |
2033 | const char *pos = nullptr; | |
2034 | const char *offeredStr = nullptr; | |
2035 | int offeredStrLen = 0; | |
2036 | while (strListGetItem(&upgradeIn, ',', &offeredStr, &offeredStrLen, &pos)) { | |
2037 | const ProtocolView offeredProto(offeredStr, offeredStrLen); | |
2038 | debugs(11, 5, "checks all rules applicable to " << offeredProto); | |
2039 | Config.http_upgrade_request_protocols->forApplicable(offeredProto, [&ch, offeredStr, offeredStrLen, &upgradeOut] (const SBuf &cfgProto, const acl_access *guard) { | |
2040 | debugs(11, 5, "checks " << cfgProto << " rule(s)"); | |
2041 | ch.changeAcl(guard); | |
2042 | const auto answer = ch.fastCheck(); | |
2043 | if (answer.implicit) | |
2044 | return false; // keep looking for an explicit rule match | |
2045 | if (answer.allowed()) | |
2046 | strListAdd(upgradeOut, offeredStr, offeredStrLen); | |
2047 | // else drop the offer (explicitly denied cases and ACL errors) | |
2048 | return true; // stop after an explicit rule match or an error | |
2049 | }); | |
2050 | } | |
2051 | ||
2052 | if (upgradeOut.size()) { | |
2053 | hdrOut.putStr(Http::HdrType::UPGRADE, upgradeOut.termedBuf()); | |
2054 | ||
2055 | /* RFC 7230 section 6.7 paragraph 10: | |
2056 | * When Upgrade is sent, the sender MUST also send a Connection header | |
2057 | * field that contains an "upgrade" connection option, in | |
2058 | * order to prevent Upgrade from being accidentally forwarded by | |
2059 | * intermediaries that might not implement the listed protocols. | |
2060 | * | |
2061 | * NP: Squid does not truly implement the protocol(s) in this Upgrade. | |
2062 | * For now we are treating an explicit blind tunnel as "implemented" | |
2063 | * regardless of the security implications. | |
2064 | */ | |
2065 | hdrOut.putStr(Http::HdrType::CONNECTION, "upgrade"); | |
1f482f82 AR |
2066 | |
2067 | // Connection:close and Connection:keepalive confuse some Upgrade | |
2068 | // recipients, so we do not send those headers. Our Upgrade request | |
2069 | // implicitly offers connection persistency per HTTP/1.1 defaults. | |
2070 | // Update the keepalive flag to reflect that offer. | |
2071 | // * If the server upgrades, then we would not be talking HTTP past the | |
2072 | // HTTP 101 control message, and HTTP persistence would be irrelevant. | |
2073 | // * Otherwise, our request will contradict onoff.server_pconns=off or | |
2074 | // other no-keepalive conditions (if any). We compensate by copying | |
2075 | // the original no-keepalive decision now and honoring it later. | |
2076 | flags.forceClose = !flags.keepalive; | |
2077 | flags.keepalive = true; // should already be true in most cases | |
1c2b4465 CT |
2078 | } |
2079 | } | |
2080 | ||
9e498bfb AJ |
2081 | /** |
2082 | * Decides whether a particular header may be cloned from the received Clients request | |
2083 | * to our outgoing fetch request. | |
2084 | */ | |
528b2c61 | 2085 | void |
bad9c5e4 | 2086 | copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry *e, const String strConnection, const HttpRequest * request, HttpHeader * hdr_out, const int we_do_ranges, const Http::StateFlags &flags) |
528b2c61 | 2087 | { |
e8466ea9 | 2088 | debugs(11, 5, "httpBuildRequestHeader: " << e->name << ": " << e->value ); |
62e76326 | 2089 | |
528b2c61 | 2090 | switch (e->id) { |
62e76326 | 2091 | |
f53969cc | 2092 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */ |
9e498bfb | 2093 | |
789217a2 | 2094 | case Http::HdrType::PROXY_AUTHORIZATION: |
9e498bfb AJ |
2095 | /** \par Proxy-Authorization: |
2096 | * Only pass on proxy authentication to peers for which | |
62e76326 | 2097 | * authentication forwarding is explicitly enabled |
2098 | */ | |
f5e17947 | 2099 | if (!flags.toOrigin && request->peer_login && |
e24f13cd CT |
2100 | (strcmp(request->peer_login, "PASS") == 0 || |
2101 | strcmp(request->peer_login, "PROXYPASS") == 0 || | |
2102 | strcmp(request->peer_login, "PASSTHRU") == 0)) { | |
eede25e7 | 2103 | hdr_out->addEntry(e->clone()); |
62e76326 | 2104 | } |
62e76326 | 2105 | break; |
2106 | ||
f53969cc | 2107 | /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */ |
9e498bfb | 2108 | |
789217a2 FC |
2109 | case Http::HdrType::CONNECTION: /** \par Connection: */ |
2110 | case Http::HdrType::TE: /** \par TE: */ | |
2111 | case Http::HdrType::KEEP_ALIVE: /** \par Keep-Alive: */ | |
2112 | case Http::HdrType::PROXY_AUTHENTICATE: /** \par Proxy-Authenticate: */ | |
2113 | case Http::HdrType::TRAILER: /** \par Trailer: */ | |
789217a2 | 2114 | case Http::HdrType::TRANSFER_ENCODING: /** \par Transfer-Encoding: */ |
9e498bfb AJ |
2115 | break; |
2116 | ||
1c2b4465 CT |
2117 | /// \par Upgrade is hop-by-hop but forwardUpgrade() may send a filtered one |
2118 | case Http::HdrType::UPGRADE: | |
2119 | break; | |
2120 | ||
f53969cc | 2121 | /** \par OTHER headers I haven't bothered to track down yet. */ |
9e498bfb | 2122 | |
789217a2 | 2123 | case Http::HdrType::AUTHORIZATION: |
9e498bfb AJ |
2124 | /** \par WWW-Authorization: |
2125 | * Pass on WWW authentication */ | |
62e76326 | 2126 | |
f5e17947 | 2127 | if (!flags.toOriginPeer()) { |
eede25e7 | 2128 | hdr_out->addEntry(e->clone()); |
62e76326 | 2129 | } else { |
f5e17947 CT |
2130 | /** \note Assume that talking to a cache_peer originserver makes |
2131 | * us a reverse proxy and only forward authentication if enabled | |
ee0b94f4 | 2132 | * (see also httpFixupAuthentication for special cases) |
62e76326 | 2133 | */ |
e24f13cd CT |
2134 | if (request->peer_login && |
2135 | (strcmp(request->peer_login, "PASS") == 0 || | |
2136 | strcmp(request->peer_login, "PASSTHRU") == 0 || | |
2137 | strcmp(request->peer_login, "PROXYPASS") == 0)) { | |
eede25e7 | 2138 | hdr_out->addEntry(e->clone()); |
62e76326 | 2139 | } |
2140 | } | |
2141 | ||
2142 | break; | |
2143 | ||
789217a2 | 2144 | case Http::HdrType::HOST: |
9e498bfb | 2145 | /** \par Host: |
b883b594 | 2146 | * Normally Squid rewrites the Host: header. |
2147 | * However, there is one case when we don't: If the URL | |
62e76326 | 2148 | * went through our redirector and the admin configured |
2149 | * 'redir_rewrites_host' to be off. | |
2150 | */ | |
e24f13cd | 2151 | if (request->peer_domain) |
789217a2 | 2152 | hdr_out->putStr(Http::HdrType::HOST, request->peer_domain); |
45e5102d | 2153 | else if (request->flags.redirected && !Config.onoff.redir_rewrites_host) |
eede25e7 | 2154 | hdr_out->addEntry(e->clone()); |
b883b594 | 2155 | else { |
5c51bffb | 2156 | SBuf authority = request->url.authority(); |
789217a2 | 2157 | hdr_out->putStr(Http::HdrType::HOST, authority.c_str()); |
b883b594 | 2158 | } |
62e76326 | 2159 | |
2160 | break; | |
2161 | ||
789217a2 | 2162 | case Http::HdrType::IF_MODIFIED_SINCE: |
9e498bfb | 2163 | /** \par If-Modified-Since: |
96598f93 AJ |
2164 | * append unless we added our own, |
2165 | * but only if cache_miss_revalidate is enabled, or | |
2166 | * the request is not cacheable, or | |
2167 | * the request contains authentication credentials. | |
2168 | * \note at most one client's If-Modified-Since header can pass through | |
2169 | */ | |
2170 | // XXX: need to check and cleanup the auth case so cacheable auth requests get cached. | |
789217a2 | 2171 | if (hdr_out->has(Http::HdrType::IF_MODIFIED_SINCE)) |
96598f93 AJ |
2172 | break; |
2173 | else if (Config.onoff.cache_miss_revalidate || !request->flags.cachable || request->flags.auth) | |
eede25e7 | 2174 | hdr_out->addEntry(e->clone()); |
96598f93 | 2175 | break; |
62e76326 | 2176 | |
789217a2 | 2177 | case Http::HdrType::IF_NONE_MATCH: |
96598f93 AJ |
2178 | /** \par If-None-Match: |
2179 | * append if the wildcard '*' special case value is present, or | |
2180 | * cache_miss_revalidate is disabled, or | |
2181 | * the request is not cacheable in this proxy, or | |
2182 | * the request contains authentication credentials. | |
2183 | * \note this header lists a set of responses for the server to elide sending. Squid added values are extending that set. | |
2184 | */ | |
2185 | // XXX: need to check and cleanup the auth case so cacheable auth requests get cached. | |
789217a2 | 2186 | if (hdr_out->hasListMember(Http::HdrType::IF_MATCH, "*", ',') || Config.onoff.cache_miss_revalidate || !request->flags.cachable || request->flags.auth) |
eede25e7 | 2187 | hdr_out->addEntry(e->clone()); |
62e76326 | 2188 | break; |
2189 | ||
789217a2 | 2190 | case Http::HdrType::MAX_FORWARDS: |
9e498bfb | 2191 | /** \par Max-Forwards: |
fc90edc3 | 2192 | * pass only on TRACE or OPTIONS requests */ |
c2a7cefd | 2193 | if (request->method == Http::METHOD_TRACE || request->method == Http::METHOD_OPTIONS) { |
fc90edc3 | 2194 | const int64_t hops = e->getInt64(); |
62e76326 | 2195 | |
2196 | if (hops > 0) | |
789217a2 | 2197 | hdr_out->putInt64(Http::HdrType::MAX_FORWARDS, hops - 1); |
62e76326 | 2198 | } |
2199 | ||
2200 | break; | |
2201 | ||
789217a2 | 2202 | case Http::HdrType::VIA: |
9e498bfb AJ |
2203 | /** \par Via: |
2204 | * If Via is disabled then forward any received header as-is. | |
2205 | * Otherwise leave for explicit updated addition later. */ | |
62e76326 | 2206 | |
2207 | if (!Config.onoff.via) | |
eede25e7 | 2208 | hdr_out->addEntry(e->clone()); |
62e76326 | 2209 | |
2210 | break; | |
2211 | ||
789217a2 | 2212 | case Http::HdrType::RANGE: |
62e76326 | 2213 | |
789217a2 | 2214 | case Http::HdrType::IF_RANGE: |
62e76326 | 2215 | |
789217a2 | 2216 | case Http::HdrType::REQUEST_RANGE: |
9e498bfb AJ |
2217 | /** \par Range:, If-Range:, Request-Range: |
2218 | * Only pass if we accept ranges */ | |
62e76326 | 2219 | if (!we_do_ranges) |
eede25e7 | 2220 | hdr_out->addEntry(e->clone()); |
62e76326 | 2221 | |
2222 | break; | |
2223 | ||
789217a2 | 2224 | case Http::HdrType::PROXY_CONNECTION: // SHOULD ignore. But doing so breaks things. |
95e78500 | 2225 | break; |
62e76326 | 2226 | |
789217a2 | 2227 | case Http::HdrType::CONTENT_LENGTH: |
f228d6f6 AR |
2228 | // pass through unless we chunk; also, keeping this away from default |
2229 | // prevents request smuggling via Connection: Content-Length tricks | |
2230 | if (!flags.chunked_request) | |
2231 | hdr_out->addEntry(e->clone()); | |
2232 | break; | |
2233 | ||
789217a2 | 2234 | case Http::HdrType::X_FORWARDED_FOR: |
62e76326 | 2235 | |
789217a2 | 2236 | case Http::HdrType::CACHE_CONTROL: |
95e78500 | 2237 | /** \par X-Forwarded-For:, Cache-Control: |
9e498bfb AJ |
2238 | * handled specially by Squid, so leave off for now. |
2239 | * append these after the loop if needed */ | |
62e76326 | 2240 | break; |
2241 | ||
789217a2 | 2242 | case Http::HdrType::FRONT_END_HTTPS: |
9e498bfb AJ |
2243 | /** \par Front-End-Https: |
2244 | * Pass thru only if peer is configured with front-end-https */ | |
62e76326 | 2245 | if (!flags.front_end_https) |
eede25e7 | 2246 | hdr_out->addEntry(e->clone()); |
62e76326 | 2247 | |
2248 | break; | |
2249 | ||
be753325 | 2250 | default: |
9e498bfb AJ |
2251 | /** \par default. |
2252 | * pass on all other header fields | |
2253 | * which are NOT listed by the special Connection: header. */ | |
d5f18517 | 2254 | if (strConnection.size()>0 && strListIsMember(&strConnection, e->name, ',')) { |
e1ea7456 | 2255 | debugs(11, 2, "'" << e->name << "' header cropped by Connection: definition"); |
9e498bfb AJ |
2256 | return; |
2257 | } | |
2258 | ||
eede25e7 | 2259 | hdr_out->addEntry(e->clone()); |
528b2c61 | 2260 | } |
2261 | } | |
2262 | ||
e5ee81f0 | 2263 | bool |
e24f13cd | 2264 | HttpStateData::decideIfWeDoRanges (HttpRequest * request) |
528b2c61 | 2265 | { |
e5ee81f0 | 2266 | bool result = true; |
62e76326 | 2267 | /* decide if we want to do Ranges ourselves |
2268 | * and fetch the whole object now) | |
2269 | * We want to handle Ranges ourselves iff | |
2270 | * - we can actually parse client Range specs | |
2271 | * - the specs are expected to be simple enough (e.g. no out-of-order ranges) | |
2272 | * - reply will be cachable | |
2273 | * (If the reply will be uncachable we have to throw it away after | |
2274 | * serving this request, so it is better to forward ranges to | |
2275 | * the server and fetch only the requested content) | |
2276 | */ | |
2277 | ||
e24f13cd | 2278 | int64_t roffLimit = request->getRangeOffsetLimit(); |
11e3fa1c | 2279 | |
45e5102d | 2280 | if (NULL == request->range || !request->flags.cachable |
450fe1cb | 2281 | || request->range->offsetLimitExceeded(roffLimit) || request->flags.connectionAuth) |
e5ee81f0 | 2282 | result = false; |
62e76326 | 2283 | |
9e008dda | 2284 | debugs(11, 8, "decideIfWeDoRanges: range specs: " << |
e24f13cd | 2285 | request->range << ", cachable: " << |
45e5102d | 2286 | request->flags.cachable << "; we_do_ranges: " << result); |
62e76326 | 2287 | |
2288 | return result; | |
528b2c61 | 2289 | } |
2290 | ||
62e76326 | 2291 | /* build request prefix and append it to a given MemBuf; |
99edd1c3 | 2292 | * return the length of the prefix */ |
9bc73deb | 2293 | mb_size_t |
e24f13cd | 2294 | HttpStateData::buildRequestPrefix(MemBuf * mb) |
99edd1c3 | 2295 | { |
2296 | const int offset = mb->size; | |
2592bc70 | 2297 | /* Uses a local httpver variable to print the HTTP label |
526ed14e AJ |
2298 | * since the HttpRequest may have an older version label. |
2299 | * XXX: This could create protocol bugs as the headers sent and | |
2300 | * flow control should all be based on the HttpRequest version | |
2301 | * not the one we are sending. Needs checking. | |
2302 | */ | |
2592bc70 | 2303 | const AnyP::ProtocolVersion httpver = Http::ProtocolVersion(); |
f5e17947 | 2304 | const SBuf url(flags.toOrigin ? request->url.path() : request->effectiveRequestUri()); |
51b5dcf5 | 2305 | mb->appendf(SQUIDSBUFPH " " SQUIDSBUFPH " %s/%d.%d\r\n", |
4391cd15 | 2306 | SQUIDSBUFPRINT(request->method.image()), |
51b5dcf5 | 2307 | SQUIDSBUFPRINT(url), |
4391cd15 AJ |
2308 | AnyP::ProtocolType_str[httpver.protocol], |
2309 | httpver.major,httpver.minor); | |
99edd1c3 | 2310 | /* build and pack headers */ |
2311 | { | |
75faaa7a | 2312 | HttpHeader hdr(hoRequest); |
1f482f82 | 2313 | forwardUpgrade(hdr); // before httpBuildRequestHeader() for CONNECTION |
d603e3c2 | 2314 | httpBuildRequestHeader(request.getRaw(), entry, fwd->al, &hdr, flags); |
9e008dda | 2315 | |
450fe1cb | 2316 | if (request->flags.pinned && request->flags.connectionAuth) |
e857372a | 2317 | request->flags.authSent = true; |
789217a2 | 2318 | else if (hdr.has(Http::HdrType::AUTHORIZATION)) |
e857372a | 2319 | request->flags.authSent = true; |
d67acb4e | 2320 | |
1c2b4465 CT |
2321 | // The late placement of this check supports reply_header_add mangling, |
2322 | // but also complicates optimizing upgradeHeaderOut-like lookups. | |
2323 | if (hdr.has(Http::HdrType::UPGRADE)) { | |
2324 | assert(!upgradeHeaderOut); | |
2325 | upgradeHeaderOut = new String(hdr.getList(Http::HdrType::UPGRADE)); | |
2326 | } | |
2327 | ||
10201568 | 2328 | hdr.packInto(mb); |
519e0948 | 2329 | hdr.clean(); |
9d9d144b | 2330 | } |
99edd1c3 | 2331 | /* append header terminator */ |
2fe7eff9 | 2332 | mb->append(crlf, 2); |
99edd1c3 | 2333 | return mb->size - offset; |
6bf8443a | 2334 | } |
62e76326 | 2335 | |
090089c4 | 2336 | /* This will be called when connect completes. Write request. */ |
5f8252d2 | 2337 | bool |
2bb867b5 | 2338 | HttpStateData::sendRequest() |
090089c4 | 2339 | { |
99edd1c3 | 2340 | MemBuf mb; |
090089c4 | 2341 | |
9cf7de1b | 2342 | debugs(11, 5, HERE << serverConnection << ", request " << request << ", this " << this << "."); |
a0297974 | 2343 | |
6b679a01 | 2344 | if (!Comm::IsConnOpen(serverConnection)) { |
9cf7de1b | 2345 | debugs(11,3, HERE << "cannot send request to closing " << serverConnection); |
a0297974 AR |
2346 | assert(closeHandler != NULL); |
2347 | return false; | |
2348 | } | |
2349 | ||
dc56a9b1 | 2350 | typedef CommCbMemFunT<HttpStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 2351 | AsyncCall::Pointer timeoutCall = JobCallback(11, 5, |
4cb2536f | 2352 | TimeoutDialer, this, HttpStateData::httpTimeout); |
8d77a37c | 2353 | commSetConnTimeout(serverConnection, Config.Timeout.lifetime, timeoutCall); |
46f4b111 | 2354 | flags.do_next_read = true; |
5f8252d2 | 2355 | maybeReadVirginBody(); |
2356 | ||
e24f13cd | 2357 | if (request->body_pipe != NULL) { |
123ec4de | 2358 | if (!startRequestBodyFlow()) // register to receive body data |
5f8252d2 | 2359 | return false; |
9e008dda | 2360 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2361 | requestSender = JobCallback(11,5, |
4cb2536f | 2362 | Dialer, this, HttpStateData::sentRequestBody); |
e31a1e67 AR |
2363 | |
2364 | Must(!flags.chunked_request); | |
f228d6f6 | 2365 | // use chunked encoding if we do not know the length |
e24f13cd | 2366 | if (request->content_length < 0) |
46f4b111 | 2367 | flags.chunked_request = true; |
5f8252d2 | 2368 | } else { |
2369 | assert(!requestBodySource); | |
9e008dda | 2370 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
4299f876 | 2371 | requestSender = JobCallback(11,5, |
39cb8c41 | 2372 | Dialer, this, HttpStateData::wroteLast); |
5f8252d2 | 2373 | } |
54220df8 | 2374 | |
efb9218c | 2375 | /* |
99edd1c3 | 2376 | * Is keep-alive okay for all request methods? |
efb9218c | 2377 | */ |
450fe1cb | 2378 | if (request->flags.mustKeepalive) |
46f4b111 | 2379 | flags.keepalive = true; |
693cb033 CT |
2380 | else if (request->flags.pinned) |
2381 | flags.keepalive = request->persistent(); | |
d67acb4e | 2382 | else if (!Config.onoff.server_pconns) |
46f4b111 | 2383 | flags.keepalive = false; |
f5e17947 CT |
2384 | else if (flags.tunneling) |
2385 | // tunneled non pinned bumped requests must not keepalive | |
2386 | flags.keepalive = !request->flags.sslBumped; | |
2bb867b5 | 2387 | else if (_peer == NULL) |
46f4b111 | 2388 | flags.keepalive = true; |
2bb867b5 | 2389 | else if (_peer->stats.n_keepalives_sent < 10) |
46f4b111 | 2390 | flags.keepalive = true; |
2bb867b5 | 2391 | else if ((double) _peer->stats.n_keepalives_recv / |
2392 | (double) _peer->stats.n_keepalives_sent > 0.50) | |
46f4b111 | 2393 | flags.keepalive = true; |
2bb867b5 | 2394 | |
f5e17947 | 2395 | if (_peer && !flags.tunneling) { |
2ecba5b6 | 2396 | /*The old code here was |
5c51bffb | 2397 | if (neighborType(_peer, request->url) == PEER_SIBLING && ... |
e24f13cd | 2398 | which is equivalent to: |
5c51bffb | 2399 | if (neighborType(_peer, URL()) == PEER_SIBLING && ... |
e24f13cd CT |
2400 | or better: |
2401 | if (((_peer->type == PEER_MULTICAST && p->options.mcast_siblings) || | |
2402 | _peer->type == PEER_SIBLINGS ) && _peer->options.allow_miss) | |
2403 | flags.only_if_cached = 1; | |
2404 | ||
2405 | But I suppose it was a bug | |
2406 | */ | |
5c51bffb | 2407 | if (neighborType(_peer, request->url) == PEER_SIBLING && !_peer->options.allow_miss) |
46f4b111 | 2408 | flags.only_if_cached = true; |
2bb867b5 | 2409 | |
2410 | flags.front_end_https = _peer->front_end_https; | |
a7ad6e4e | 2411 | } |
62e76326 | 2412 | |
2fe7eff9 | 2413 | mb.init(); |
9ca29d23 | 2414 | request->peer_host=_peer?_peer->host:NULL; |
e24f13cd | 2415 | buildRequestPrefix(&mb); |
5f8252d2 | 2416 | |
1ce34ddd AJ |
2417 | debugs(11, 2, "HTTP Server " << serverConnection); |
2418 | debugs(11, 2, "HTTP Server REQUEST:\n---------\n" << mb.buf << "\n----------"); | |
2419 | ||
2420 | Comm::Write(serverConnection, &mb, requestSender); | |
5f8252d2 | 2421 | return true; |
090089c4 | 2422 | } |
b6a2f15e | 2423 | |
39cb8c41 AR |
2424 | bool |
2425 | HttpStateData::getMoreRequestBody(MemBuf &buf) | |
2426 | { | |
2427 | // parent's implementation can handle the no-encoding case | |
e31a1e67 | 2428 | if (!flags.chunked_request) |
fccd4a86 | 2429 | return Client::getMoreRequestBody(buf); |
39cb8c41 AR |
2430 | |
2431 | MemBuf raw; | |
2432 | ||
2433 | Must(requestBodySource != NULL); | |
2434 | if (!requestBodySource->getMoreData(raw)) | |
2435 | return false; // no request body bytes to chunk yet | |
2436 | ||
2437 | // optimization: pre-allocate buffer size that should be enough | |
2438 | const mb_size_t rawDataSize = raw.contentSize(); | |
2439 | // we may need to send: hex-chunk-size CRLF raw-data CRLF last-chunk | |
2440 | buf.init(16 + 2 + rawDataSize + 2 + 5, raw.max_capacity); | |
2441 | ||
4391cd15 | 2442 | buf.appendf("%x\r\n", static_cast<unsigned int>(rawDataSize)); |
39cb8c41 | 2443 | buf.append(raw.content(), rawDataSize); |
4391cd15 | 2444 | buf.append("\r\n", 2); |
39cb8c41 | 2445 | |
2f8abb64 | 2446 | Must(rawDataSize > 0); // we did not accidentally created last-chunk above |
39cb8c41 AR |
2447 | |
2448 | // Do not send last-chunk unless we successfully received everything | |
2449 | if (receivedWholeRequestBody) { | |
2450 | Must(!flags.sentLastChunk); | |
2451 | flags.sentLastChunk = true; | |
de48b288 | 2452 | buf.append("0\r\n\r\n", 5); |
39cb8c41 AR |
2453 | } |
2454 | ||
2455 | return true; | |
2456 | } | |
2457 | ||
910169e5 | 2458 | void |
b6b6f466 | 2459 | httpStart(FwdState *fwd) |
603a02fd | 2460 | { |
7f06a3d8 | 2461 | debugs(11, 3, fwd->request->method << ' ' << fwd->entry->url()); |
79628299 CT |
2462 | AsyncJob::Start(new HttpStateData(fwd)); |
2463 | } | |
62e76326 | 2464 | |
79628299 CT |
2465 | void |
2466 | HttpStateData::start() | |
2467 | { | |
2468 | if (!sendRequest()) { | |
bf8fe701 | 2469 | debugs(11, 3, "httpStart: aborted"); |
79628299 | 2470 | mustStop("HttpStateData::start failed"); |
5f8252d2 | 2471 | return; |
2472 | } | |
62e76326 | 2473 | |
95dc7ff4 FC |
2474 | ++ statCounter.server.all.requests; |
2475 | ++ statCounter.server.http.requests; | |
62e76326 | 2476 | |
b6a2f15e | 2477 | /* |
2478 | * We used to set the read timeout here, but not any more. | |
2479 | * Now its set in httpSendComplete() after the full request, | |
2480 | * including request body, has been written to the server. | |
2481 | */ | |
090089c4 | 2482 | } |
2483 | ||
39cb8c41 AR |
2484 | /// if broken posts are enabled for the request, try to fix and return true |
2485 | bool | |
2486 | HttpStateData::finishingBrokenPost() | |
2bb867b5 | 2487 | { |
626096be | 2488 | #if USE_HTTP_VIOLATIONS |
39cb8c41 AR |
2489 | if (!Config.accessList.brokenPosts) { |
2490 | debugs(11, 5, HERE << "No brokenPosts list"); | |
2491 | return false; | |
2492 | } | |
a0297974 | 2493 | |
d603e3c2 | 2494 | ACLFilledChecklist ch(Config.accessList.brokenPosts, originalRequest().getRaw()); |
cb365059 EB |
2495 | ch.al = fwd->al; |
2496 | ch.syncAle(originalRequest().getRaw(), nullptr); | |
06bf5384 | 2497 | if (!ch.fastCheck().allowed()) { |
39cb8c41 AR |
2498 | debugs(11, 5, HERE << "didn't match brokenPosts"); |
2499 | return false; | |
2500 | } | |
a0297974 | 2501 | |
9cf7de1b | 2502 | if (!Comm::IsConnOpen(serverConnection)) { |
30c48b1a | 2503 | debugs(11, 3, HERE << "ignoring broken POST for closed " << serverConnection); |
39cb8c41 AR |
2504 | assert(closeHandler != NULL); |
2505 | return true; // prevent caller from proceeding as if nothing happened | |
54220df8 | 2506 | } |
39cb8c41 | 2507 | |
30c48b1a | 2508 | debugs(11, 3, "finishingBrokenPost: fixing broken POST"); |
39cb8c41 AR |
2509 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; |
2510 | requestSender = JobCallback(11,5, | |
2511 | Dialer, this, HttpStateData::wroteLast); | |
b0388924 | 2512 | Comm::Write(serverConnection, "\r\n", 2, requestSender, NULL); |
39cb8c41 AR |
2513 | return true; |
2514 | #else | |
2515 | return false; | |
626096be | 2516 | #endif /* USE_HTTP_VIOLATIONS */ |
39cb8c41 AR |
2517 | } |
2518 | ||
2519 | /// if needed, write last-chunk to end the request body and return true | |
2520 | bool | |
2521 | HttpStateData::finishingChunkedRequest() | |
2522 | { | |
2523 | if (flags.sentLastChunk) { | |
2524 | debugs(11, 5, HERE << "already sent last-chunk"); | |
2525 | return false; | |
2526 | } | |
2527 | ||
2528 | Must(receivedWholeRequestBody); // or we should not be sending last-chunk | |
2529 | flags.sentLastChunk = true; | |
2530 | ||
2531 | typedef CommCbMemFunT<HttpStateData, CommIoCbParams> Dialer; | |
e0d28505 | 2532 | requestSender = JobCallback(11,5, Dialer, this, HttpStateData::wroteLast); |
b0388924 | 2533 | Comm::Write(serverConnection, "0\r\n\r\n", 5, requestSender, NULL); |
39cb8c41 AR |
2534 | return true; |
2535 | } | |
2536 | ||
2537 | void | |
2538 | HttpStateData::doneSendingRequestBody() | |
2539 | { | |
fccd4a86 | 2540 | Client::doneSendingRequestBody(); |
9cf7de1b | 2541 | debugs(11,5, HERE << serverConnection); |
39cb8c41 AR |
2542 | |
2543 | // do we need to write something after the last body byte? | |
e31a1e67 | 2544 | if (flags.chunked_request && finishingChunkedRequest()) |
39cb8c41 | 2545 | return; |
e31a1e67 | 2546 | if (!flags.chunked_request && finishingBrokenPost()) |
39cb8c41 | 2547 | return; |
aa49962c | 2548 | |
39cb8c41 | 2549 | sendComplete(); |
94439e4e | 2550 | } |
2551 | ||
5f8252d2 | 2552 | // more origin request body data is available |
2bb867b5 | 2553 | void |
5f8252d2 | 2554 | HttpStateData::handleMoreRequestBodyAvailable() |
2bb867b5 | 2555 | { |
6b679a01 | 2556 | if (eof || !Comm::IsConnOpen(serverConnection)) { |
5f8252d2 | 2557 | // XXX: we should check this condition in other callbacks then! |
2558 | // TODO: Check whether this can actually happen: We should unsubscribe | |
2559 | // as a body consumer when the above condition(s) are detected. | |
e0236918 | 2560 | debugs(11, DBG_IMPORTANT, HERE << "Transaction aborted while reading HTTP body"); |
2bb867b5 | 2561 | return; |
2562 | } | |
62e76326 | 2563 | |
5f8252d2 | 2564 | assert(requestBodySource != NULL); |
fc68f6b1 | 2565 | |
5f8252d2 | 2566 | if (requestBodySource->buf().hasContent()) { |
2567 | // XXX: why does not this trigger a debug message on every request? | |
fc68f6b1 | 2568 | |
2bb867b5 | 2569 | if (flags.headers_parsed && !flags.abuse_detected) { |
46f4b111 | 2570 | flags.abuse_detected = true; |
e0236918 | 2571 | debugs(11, DBG_IMPORTANT, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << request->client_addr << "' -> '" << entry->url() << "'" ); |
21b92762 | 2572 | |
9b769c67 | 2573 | if (virginReply()->sline.status() == Http::scInvalidHeader) { |
398bc066 CT |
2574 | closeServer(); |
2575 | mustStop("HttpStateData::handleMoreRequestBodyAvailable"); | |
21b92762 | 2576 | return; |
2577 | } | |
2578 | } | |
b6a2f15e | 2579 | } |
5f8252d2 | 2580 | |
2581 | HttpStateData::handleMoreRequestBodyAvailable(); | |
376bb137 | 2582 | } |
2583 | ||
5f8252d2 | 2584 | // premature end of the request body |
2bb867b5 | 2585 | void |
5f8252d2 | 2586 | HttpStateData::handleRequestBodyProducerAborted() |
376bb137 | 2587 | { |
fccd4a86 | 2588 | Client::handleRequestBodyProducerAborted(); |
64b66b76 | 2589 | if (entry->isEmpty()) { |
25b481e6 | 2590 | debugs(11, 3, "request body aborted: " << serverConnection); |
8b997339 AR |
2591 | // We usually get here when ICAP REQMOD aborts during body processing. |
2592 | // We might also get here if client-side aborts, but then our response | |
2593 | // should not matter because either client-side will provide its own or | |
2594 | // there will be no response at all (e.g., if the the client has left). | |
7e6eabbc | 2595 | const auto err = new ErrorState(ERR_ICAP_FAILURE, Http::scInternalServerError, fwd->request, fwd->al); |
83b053a0 CT |
2596 | static const auto d = MakeNamedErrorDetail("SRV_REQMOD_REQ_BODY"); |
2597 | err->detailError(d); | |
64b66b76 CT |
2598 | fwd->fail(err); |
2599 | } | |
2600 | ||
39cb8c41 | 2601 | abortTransaction("request body producer aborted"); |
2bb867b5 | 2602 | } |
2603 | ||
5f8252d2 | 2604 | // called when we wrote request headers(!) or a part of the body |
2bb867b5 | 2605 | void |
dc56a9b1 | 2606 | HttpStateData::sentRequestBody(const CommIoCbParams &io) |
2bb867b5 | 2607 | { |
dc56a9b1 | 2608 | if (io.size > 0) |
a0864754 | 2609 | statCounter.server.http.kbytes_out += io.size; |
fc68f6b1 | 2610 | |
fccd4a86 | 2611 | Client::sentRequestBody(io); |
5f8252d2 | 2612 | } |
3b299123 | 2613 | |
5f8252d2 | 2614 | void |
92cfc72f | 2615 | HttpStateData::abortAll(const char *reason) |
5f8252d2 | 2616 | { |
2617 | debugs(11,5, HERE << "aborting transaction for " << reason << | |
9cf7de1b | 2618 | "; " << serverConnection << ", this " << this); |
70df76e3 | 2619 | mustStop(reason); |
54220df8 | 2620 | } |
f53969cc | 2621 | |
39fe14b2 EB |
2622 | HttpStateData::ReuseDecision::ReuseDecision(const StoreEntry *e, const Http::StatusCode code) |
2623 | : answer(HttpStateData::ReuseDecision::reuseNot), reason(nullptr), entry(e), statusCode(code) {} | |
2624 | ||
2625 | HttpStateData::ReuseDecision::Answers | |
2626 | HttpStateData::ReuseDecision::make(const HttpStateData::ReuseDecision::Answers ans, const char *why) | |
2627 | { | |
2628 | answer = ans; | |
2629 | reason = why; | |
2630 | return answer; | |
2631 | } | |
2632 | ||
2633 | std::ostream &operator <<(std::ostream &os, const HttpStateData::ReuseDecision &d) | |
2634 | { | |
2635 | static const char *ReuseMessages[] = { | |
2636 | "do not cache and do not share", // reuseNot | |
2637 | "cache positively and share", // cachePositively | |
2638 | "cache negatively and share", // cacheNegatively | |
2639 | "do not cache but share" // doNotCacheButShare | |
2640 | }; | |
2641 | ||
2642 | assert(d.answer >= HttpStateData::ReuseDecision::reuseNot && | |
4a71b1fc | 2643 | d.answer <= HttpStateData::ReuseDecision::doNotCacheButShare); |
39fe14b2 | 2644 | return os << ReuseMessages[d.answer] << " because " << d.reason << |
4a71b1fc | 2645 | "; HTTP status " << d.statusCode << " " << *(d.entry); |
39fe14b2 EB |
2646 | } |
2647 |