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dd11e0b7 | 1 | /* |
ef57eb7b | 2 | * Copyright (C) 1996-2016 The Squid Software Foundation and contributors |
dd11e0b7 | 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. | |
dd11e0b7 | 7 | */ |
f88bb09c | 8 | |
bbc27441 AJ |
9 | /* DEBUG: section 33 Client-side Routines */ |
10 | ||
63be0a78 | 11 | /** |
12 | \defgroup ClientSide Client-Side Logics | |
13 | * | |
d85b8894 | 14 | \section cserrors Errors and client side |
edce4d98 | 15 | * |
63be0a78 | 16 | \par Problem the first: |
17 | * the store entry is no longer authoritative on the | |
edce4d98 | 18 | * reply status. EBITTEST (E_ABORT) is no longer a valid test outside |
19 | * of client_side_reply.c. | |
20 | * Problem the second: resources are wasted if we delay in cleaning up. | |
21 | * Problem the third we can't depend on a connection close to clean up. | |
9e008dda | 22 | * |
63be0a78 | 23 | \par Nice thing the first: |
9e008dda | 24 | * Any step in the stream can callback with data |
edce4d98 | 25 | * representing an error. |
26 | * Nice thing the second: once you stop requesting reads from upstream, | |
27 | * upstream can be stopped too. | |
28 | * | |
63be0a78 | 29 | \par Solution #1: |
30 | * Error has a callback mechanism to hand over a membuf | |
9e008dda | 31 | * with the error content. The failing node pushes that back as the |
edce4d98 | 32 | * reply. Can this be generalised to reduce duplicate efforts? |
33 | * A: Possibly. For now, only one location uses this. | |
34 | * How to deal with pre-stream errors? | |
35 | * Tell client_side_reply that we *want* an error page before any | |
36 | * stream calls occur. Then we simply read as normal. | |
63be0a78 | 37 | * |
38 | * | |
d85b8894 | 39 | \section pconn_logic Persistent connection logic: |
63be0a78 | 40 | * |
41 | \par | |
42 | * requests (httpClientRequest structs) get added to the connection | |
43 | * list, with the current one being chr | |
9e008dda | 44 | * |
63be0a78 | 45 | \par |
46 | * The request is *immediately* kicked off, and data flows through | |
47 | * to clientSocketRecipient. | |
9e008dda | 48 | * |
63be0a78 | 49 | \par |
50 | * If the data that arrives at clientSocketRecipient is not for the current | |
51 | * request, clientSocketRecipient simply returns, without requesting more | |
52 | * data, or sending it. | |
53 | * | |
54 | \par | |
4a4fbcef | 55 | * ConnStateData::kick() will then detect the presence of data in |
9e008dda | 56 | * the next ClientHttpRequest, and will send it, restablishing the |
63be0a78 | 57 | * data flow. |
edce4d98 | 58 | */ |
59 | ||
582c2af2 | 60 | #include "squid.h" |
04f55905 | 61 | #include "acl/FilledChecklist.h" |
65d448bc | 62 | #include "anyp/PortCfg.h" |
00406b24 | 63 | #include "base/Subscription.h" |
d841c88d | 64 | #include "base/TextException.h" |
a011edee | 65 | #include "CachePeer.h" |
95e6d864 | 66 | #include "client_db.h" |
602d9612 | 67 | #include "client_side.h" |
04f55905 AJ |
68 | #include "client_side_reply.h" |
69 | #include "client_side_request.h" | |
70 | #include "ClientRequestContext.h" | |
c8be6d7b | 71 | #include "clientStream.h" |
c4b7a5a9 | 72 | #include "comm.h" |
cfd66529 | 73 | #include "comm/Connection.h" |
d841c88d | 74 | #include "comm/Loops.h" |
7e66d5e2 | 75 | #include "comm/Read.h" |
cbff89ba | 76 | #include "comm/TcpAcceptor.h" |
582c2af2 FC |
77 | #include "comm/Write.h" |
78 | #include "CommCalls.h" | |
8eb0a7ee | 79 | #include "errorpage.h" |
c4ad1349 | 80 | #include "fd.h" |
04f55905 | 81 | #include "fde.h" |
95e6d864 | 82 | #include "fqdncache.h" |
eb13c21e | 83 | #include "FwdState.h" |
67679543 | 84 | #include "globals.h" |
24438ec5 AJ |
85 | #include "helper.h" |
86 | #include "helper/Reply.h" | |
5c0c642e | 87 | #include "http.h" |
c99510dd | 88 | #include "http/one/RequestParser.h" |
db1720f8 | 89 | #include "http/one/TeChunkedParser.h" |
d3dddfb5 | 90 | #include "http/Stream.h" |
25b6a907 | 91 | #include "HttpHdrContRange.h" |
a5bac1d2 | 92 | #include "HttpHeaderTools.h" |
528b2c61 | 93 | #include "HttpReply.h" |
94 | #include "HttpRequest.h" | |
4daaf3cb AJ |
95 | #include "ident/Config.h" |
96 | #include "ident/Ident.h" | |
308e60be | 97 | #include "internal.h" |
cbff89ba | 98 | #include "ipc/FdNotes.h" |
fe090a86 | 99 | #include "ipc/StartListening.h" |
1c7ae5ff | 100 | #include "log/access_log.h" |
0eb49b6d | 101 | #include "MemBuf.h" |
04f55905 | 102 | #include "MemObject.h" |
b6149797 | 103 | #include "mime_header.h" |
b1cef121 | 104 | #include "parser/Tokenizer.h" |
582c2af2 | 105 | #include "profiler/Profiler.h" |
1fa9b1a7 | 106 | #include "rfc1738.h" |
2bcab852 | 107 | #include "security/NegotiationHistory.h" |
92ae4c86 | 108 | #include "servers/forward.h" |
4d5904f7 | 109 | #include "SquidConfig.h" |
582c2af2 | 110 | #include "SquidTime.h" |
e1656dc4 | 111 | #include "StatCounters.h" |
00a7574e | 112 | #include "StatHist.h" |
582c2af2 FC |
113 | #include "Store.h" |
114 | #include "TimeOrTag.h" | |
4e540555 | 115 | #include "tools.h" |
b1bd952a | 116 | #include "URL.h" |
582c2af2 FC |
117 | |
118 | #if USE_AUTH | |
119 | #include "auth/UserRequest.h" | |
120 | #endif | |
121 | #if USE_DELAY_POOLS | |
122 | #include "ClientInfo.h" | |
123 | #endif | |
cb4f4424 | 124 | #if USE_OPENSSL |
d620ae0e | 125 | #include "ssl/bio.h" |
95d2589c | 126 | #include "ssl/context_storage.h" |
602d9612 | 127 | #include "ssl/gadgets.h" |
95d2589c | 128 | #include "ssl/helper.h" |
602d9612 | 129 | #include "ssl/ProxyCerts.h" |
fd4624d7 | 130 | #include "ssl/ServerBump.h" |
4db984be | 131 | #include "ssl/support.h" |
95d2589c | 132 | #endif |
95d2589c | 133 | |
ed6e9fb9 AJ |
134 | // for tvSubUsec() which should be in SquidTime.h |
135 | #include "util.h" | |
136 | ||
074d6a40 AJ |
137 | #include <climits> |
138 | #include <cmath> | |
95d2589c | 139 | #include <limits> |
95d2589c | 140 | |
5492ad1d | 141 | #if LINGERING_CLOSE |
142 | #define comm_close comm_lingering_close | |
143 | #endif | |
144 | ||
cbff89ba | 145 | /// dials clientListenerConnectionOpened call |
fe090a86 AR |
146 | class ListeningStartedDialer: public CallDialer, public Ipc::StartListeningCb |
147 | { | |
148 | public: | |
fa720bfb AJ |
149 | typedef void (*Handler)(AnyP::PortCfgPointer &portCfg, const Ipc::FdNoteId note, const Subscription::Pointer &sub); |
150 | ListeningStartedDialer(Handler aHandler, AnyP::PortCfgPointer &aPortCfg, const Ipc::FdNoteId note, const Subscription::Pointer &aSub): | |
f53969cc | 151 | handler(aHandler), portCfg(aPortCfg), portTypeNote(note), sub(aSub) {} |
fe090a86 | 152 | |
5667a628 AR |
153 | virtual void print(std::ostream &os) const { |
154 | startPrint(os) << | |
f53969cc | 155 | ", " << FdNote(portTypeNote) << " port=" << (void*)&portCfg << ')'; |
5667a628 | 156 | } |
fe090a86 AR |
157 | |
158 | virtual bool canDial(AsyncCall &) const { return true; } | |
8bbb16e3 | 159 | virtual void dial(AsyncCall &) { (handler)(portCfg, portTypeNote, sub); } |
fe090a86 AR |
160 | |
161 | public: | |
162 | Handler handler; | |
163 | ||
164 | private: | |
fa720bfb | 165 | AnyP::PortCfgPointer portCfg; ///< from HttpPortList |
cbff89ba | 166 | Ipc::FdNoteId portTypeNote; ///< Type of IPC socket being opened |
cbff89ba | 167 | Subscription::Pointer sub; ///< The handler to be subscribed for this connetion listener |
fe090a86 AR |
168 | }; |
169 | ||
fa720bfb | 170 | static void clientListenerConnectionOpened(AnyP::PortCfgPointer &s, const Ipc::FdNoteId portTypeNote, const Subscription::Pointer &sub); |
fe090a86 | 171 | |
e0d28505 | 172 | static IOACB httpAccept; |
cb4f4424 | 173 | #if USE_OPENSSL |
e0d28505 | 174 | static IOACB httpsAccept; |
40d34a62 | 175 | #endif |
8d77a37c | 176 | static CTCB clientLifetimeTimeout; |
3898f57f | 177 | #if USE_IDENT |
05832ae1 | 178 | static IDCB clientIdentDone; |
3898f57f | 179 | #endif |
190154cf | 180 | static int clientIsContentLengthValid(HttpRequest * r); |
47f6e231 | 181 | static int clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength); |
50c09fc4 | 182 | |
91369933 AJ |
183 | static void clientUpdateStatHistCounters(const LogTags &logType, int svc_time); |
184 | static void clientUpdateStatCounters(const LogTags &logType); | |
c8be6d7b | 185 | static void clientUpdateHierCounters(HierarchyLogEntry *); |
528b2c61 | 186 | static bool clientPingHasFinished(ping_data const *aPing); |
41ebd397 | 187 | void prepareLogWithRequestDetails(HttpRequest *, AccessLogEntry::Pointer &); |
d3dddfb5 | 188 | static void ClientSocketContextPushDeferredIfNeeded(Http::StreamPointer deferredRequest, ConnStateData * conn); |
c8be6d7b | 189 | |
84cc2635 | 190 | char *skipLeadingSpace(char *aString); |
62e76326 | 191 | |
edce4d98 | 192 | #if USE_IDENT |
4d55827a | 193 | static void |
edce4d98 | 194 | clientIdentDone(const char *ident, void *data) |
4d55827a | 195 | { |
cc59d02a | 196 | ConnStateData *conn = (ConnStateData *)data; |
73c36fd9 | 197 | xstrncpy(conn->clientConnection->rfc931, ident ? ident : dash_str, USER_IDENT_SZ); |
e81957b7 | 198 | } |
447e176b | 199 | #endif |
7a2f978b | 200 | |
c8be6d7b | 201 | void |
91369933 | 202 | clientUpdateStatCounters(const LogTags &logType) |
a7c05555 | 203 | { |
e4f1fdae | 204 | ++statCounter.client_http.requests; |
62e76326 | 205 | |
91369933 | 206 | if (logType.isTcpHit()) |
e4f1fdae | 207 | ++statCounter.client_http.hits; |
62e76326 | 208 | |
91369933 | 209 | if (logType.oldType == LOG_TCP_HIT) |
e4f1fdae | 210 | ++statCounter.client_http.disk_hits; |
91369933 | 211 | else if (logType.oldType == LOG_TCP_MEM_HIT) |
e4f1fdae | 212 | ++statCounter.client_http.mem_hits; |
c8be6d7b | 213 | } |
214 | ||
215 | void | |
91369933 | 216 | clientUpdateStatHistCounters(const LogTags &logType, int svc_time) |
c8be6d7b | 217 | { |
e8baef82 | 218 | statCounter.client_http.allSvcTime.count(svc_time); |
63be0a78 | 219 | /** |
ee1679df | 220 | * The idea here is not to be complete, but to get service times |
221 | * for only well-defined types. For example, we don't include | |
1d7ab0f4 | 222 | * LOG_TCP_REFRESH_FAIL because its not really a cache hit |
ee1679df | 223 | * (we *tried* to validate it, but failed). |
224 | */ | |
62e76326 | 225 | |
91369933 | 226 | switch (logType.oldType) { |
62e76326 | 227 | |
1d7ab0f4 | 228 | case LOG_TCP_REFRESH_UNMODIFIED: |
e8baef82 | 229 | statCounter.client_http.nearHitSvcTime.count(svc_time); |
62e76326 | 230 | break; |
231 | ||
ee1679df | 232 | case LOG_TCP_IMS_HIT: |
e8baef82 | 233 | statCounter.client_http.nearMissSvcTime.count(svc_time); |
62e76326 | 234 | break; |
235 | ||
ee1679df | 236 | case LOG_TCP_HIT: |
62e76326 | 237 | |
ee1679df | 238 | case LOG_TCP_MEM_HIT: |
62e76326 | 239 | |
b540e168 | 240 | case LOG_TCP_OFFLINE_HIT: |
e8baef82 | 241 | statCounter.client_http.hitSvcTime.count(svc_time); |
62e76326 | 242 | break; |
243 | ||
ee1679df | 244 | case LOG_TCP_MISS: |
62e76326 | 245 | |
ee1679df | 246 | case LOG_TCP_CLIENT_REFRESH_MISS: |
e8baef82 | 247 | statCounter.client_http.missSvcTime.count(svc_time); |
62e76326 | 248 | break; |
249 | ||
ee1679df | 250 | default: |
62e76326 | 251 | /* make compiler warnings go away */ |
252 | break; | |
ee1679df | 253 | } |
c8be6d7b | 254 | } |
255 | ||
528b2c61 | 256 | bool |
c8be6d7b | 257 | clientPingHasFinished(ping_data const *aPing) |
258 | { | |
259 | if (0 != aPing->stop.tv_sec && 0 != aPing->start.tv_sec) | |
62e76326 | 260 | return true; |
261 | ||
528b2c61 | 262 | return false; |
c8be6d7b | 263 | } |
264 | ||
265 | void | |
266 | clientUpdateHierCounters(HierarchyLogEntry * someEntry) | |
267 | { | |
268 | ping_data *i; | |
62e76326 | 269 | |
c8547a11 | 270 | switch (someEntry->code) { |
271 | #if USE_CACHE_DIGESTS | |
62e76326 | 272 | |
c8547a11 | 273 | case CD_PARENT_HIT: |
62e76326 | 274 | |
a196e1e4 | 275 | case CD_SIBLING_HIT: |
95dc7ff4 | 276 | ++ statCounter.cd.times_used; |
62e76326 | 277 | break; |
c8547a11 | 278 | #endif |
62e76326 | 279 | |
c8547a11 | 280 | case SIBLING_HIT: |
62e76326 | 281 | |
c8547a11 | 282 | case PARENT_HIT: |
62e76326 | 283 | |
c8547a11 | 284 | case FIRST_PARENT_MISS: |
62e76326 | 285 | |
c8547a11 | 286 | case CLOSEST_PARENT_MISS: |
95dc7ff4 | 287 | ++ statCounter.icp.times_used; |
62e76326 | 288 | i = &someEntry->ping; |
289 | ||
290 | if (clientPingHasFinished(i)) | |
e8baef82 | 291 | statCounter.icp.querySvcTime.count(tvSubUsec(i->start, i->stop)); |
62e76326 | 292 | |
293 | if (i->timeout) | |
95dc7ff4 | 294 | ++ statCounter.icp.query_timeouts; |
62e76326 | 295 | |
296 | break; | |
297 | ||
c8547a11 | 298 | case CLOSEST_PARENT: |
62e76326 | 299 | |
c8547a11 | 300 | case CLOSEST_DIRECT: |
95dc7ff4 | 301 | ++ statCounter.netdb.times_used; |
62e76326 | 302 | |
303 | break; | |
304 | ||
69c95dd3 | 305 | default: |
62e76326 | 306 | break; |
17b6e784 | 307 | } |
a7c05555 | 308 | } |
309 | ||
528b2c61 | 310 | void |
311 | ClientHttpRequest::updateCounters() | |
c8be6d7b | 312 | { |
528b2c61 | 313 | clientUpdateStatCounters(logType); |
62e76326 | 314 | |
528b2c61 | 315 | if (request->errType != ERR_NONE) |
95dc7ff4 | 316 | ++ statCounter.client_http.errors; |
62e76326 | 317 | |
528b2c61 | 318 | clientUpdateStatHistCounters(logType, |
af0ded40 | 319 | tvSubMsec(al->cache.start_time, current_time)); |
62e76326 | 320 | |
528b2c61 | 321 | clientUpdateHierCounters(&request->hier); |
c8be6d7b | 322 | } |
323 | ||
edce4d98 | 324 | void |
41ebd397 | 325 | prepareLogWithRequestDetails(HttpRequest * request, AccessLogEntry::Pointer &aLogEntry) |
7a2f978b | 326 | { |
c8be6d7b | 327 | assert(request); |
41ebd397 | 328 | assert(aLogEntry != NULL); |
7684c4b1 | 329 | |
330 | if (Config.onoff.log_mime_hdrs) { | |
7684c4b1 | 331 | MemBuf mb; |
2fe7eff9 | 332 | mb.init(); |
10201568 | 333 | request->header.packInto(&mb); |
105d1937 A |
334 | //This is the request after adaptation or redirection |
335 | aLogEntry->headers.adapted_request = xstrdup(mb.buf); | |
336 | ||
337 | // the virgin request is saved to aLogEntry->request | |
338 | if (aLogEntry->request) { | |
105d1937 | 339 | mb.reset(); |
10201568 | 340 | aLogEntry->request->header.packInto(&mb); |
105d1937 A |
341 | aLogEntry->headers.request = xstrdup(mb.buf); |
342 | } | |
3ff65596 | 343 | |
5038f9d8 AR |
344 | #if USE_ADAPTATION |
345 | const Adaptation::History::Pointer ah = request->adaptLogHistory(); | |
346 | if (ah != NULL) { | |
5038f9d8 | 347 | mb.reset(); |
10201568 | 348 | ah->lastMeta.packInto(&mb); |
99690f32 | 349 | aLogEntry->adapt.last_meta = xstrdup(mb.buf); |
5038f9d8 | 350 | } |
3ff65596 AR |
351 | #endif |
352 | ||
2fe7eff9 | 353 | mb.clean(); |
7684c4b1 | 354 | } |
355 | ||
3ff65596 | 356 | #if ICAP_CLIENT |
5038f9d8 | 357 | const Adaptation::Icap::History::Pointer ih = request->icapHistory(); |
3ff65596 | 358 | if (ih != NULL) |
01bd87d8 | 359 | ih->processingTime(aLogEntry->icap.processingTime); |
3ff65596 AR |
360 | #endif |
361 | ||
c8be6d7b | 362 | aLogEntry->http.method = request->method; |
363 | aLogEntry->http.version = request->http_ver; | |
c8be6d7b | 364 | aLogEntry->hier = request->hier; |
3ff65596 | 365 | if (request->content_length > 0) // negative when no body or unknown length |
cc0ca3b9 | 366 | aLogEntry->http.clientRequestSz.payloadData += request->content_length; // XXX: actually adaptedRequest payload size ?? |
5b4117d8 | 367 | aLogEntry->cache.extuser = request->extacl_user.termedBuf(); |
abb929f0 | 368 | |
a119c6ad AR |
369 | // Adapted request, if any, inherits and then collects all the stats, but |
370 | // the virgin request gets logged instead; copy the stats to log them. | |
371 | // TODO: avoid losses by keeping these stats in a shared history object? | |
64b66b76 | 372 | if (aLogEntry->request) { |
a119c6ad | 373 | aLogEntry->request->dnsWait = request->dnsWait; |
64b66b76 CT |
374 | aLogEntry->request->errType = request->errType; |
375 | aLogEntry->request->errDetail = request->errDetail; | |
376 | } | |
c8be6d7b | 377 | } |
378 | ||
379 | void | |
528b2c61 | 380 | ClientHttpRequest::logRequest() |
381 | { | |
91369933 AJ |
382 | if (!out.size && logType.oldType == LOG_TAG_NONE) |
383 | debugs(33, 5, "logging half-baked transaction: " << log_uri); | |
6fd1086a | 384 | |
41ebd397 CT |
385 | al->icp.opcode = ICP_INVALID; |
386 | al->url = log_uri; | |
387 | debugs(33, 9, "clientLogRequest: al.url='" << al->url << "'"); | |
62e76326 | 388 | |
41ebd397 | 389 | if (al->reply) { |
9b769c67 | 390 | al->http.code = al->reply->sline.status(); |
41ebd397 | 391 | al->http.content_type = al->reply->content_type.termedBuf(); |
6fd1086a | 392 | } else if (loggingEntry() && loggingEntry()->mem_obj) { |
9b769c67 | 393 | al->http.code = loggingEntry()->mem_obj->getReply()->sline.status(); |
41ebd397 | 394 | al->http.content_type = loggingEntry()->mem_obj->getReply()->content_type.termedBuf(); |
6fd1086a | 395 | } |
5f8252d2 | 396 | |
41ebd397 | 397 | debugs(33, 9, "clientLogRequest: http.code='" << al->http.code << "'"); |
90a8964c | 398 | |
3a646078 | 399 | if (loggingEntry() && loggingEntry()->mem_obj && loggingEntry()->objectLen() >= 0) |
d6df21d2 | 400 | al->cache.objectSize = loggingEntry()->contentLen(); // payload duplicate ?? with or without TE ? |
90a8964c | 401 | |
cc0ca3b9 AJ |
402 | al->http.clientRequestSz.header = req_sz; |
403 | al->http.clientReplySz.header = out.headers_sz; | |
d6df21d2 | 404 | // XXX: calculate without payload encoding or headers !! |
cc0ca3b9 | 405 | al->http.clientReplySz.payloadData = out.size - out.headers_sz; // pretend its all un-encoded data for now. |
90a8964c | 406 | |
41ebd397 | 407 | al->cache.highOffset = out.offset; |
90a8964c | 408 | |
41ebd397 | 409 | al->cache.code = logType; |
62e76326 | 410 | |
01bd87d8 | 411 | tvSub(al->cache.trTime, al->cache.start_time, current_time); |
62e76326 | 412 | |
6fd1086a | 413 | if (request) |
41ebd397 | 414 | prepareLogWithRequestDetails(request, al); |
62e76326 | 415 | |
1b76e6c1 | 416 | if (getConn() != NULL && getConn()->clientConnection != NULL && getConn()->clientConnection->rfc931[0]) |
41ebd397 | 417 | al->cache.rfc931 = getConn()->clientConnection->rfc931; |
62e76326 | 418 | |
cb4f4424 | 419 | #if USE_OPENSSL && 0 |
62e76326 | 420 | |
6fd1086a AR |
421 | /* This is broken. Fails if the connection has been closed. Needs |
422 | * to snarf the ssl details some place earlier.. | |
423 | */ | |
424 | if (getConn() != NULL) | |
41ebd397 | 425 | al->cache.ssluser = sslGetUserEmail(fd_table[getConn()->fd].ssl); |
62e76326 | 426 | |
a7ad6e4e | 427 | #endif |
62e76326 | 428 | |
f8a2338f AJ |
429 | /* Add notes (if we have a request to annotate) */ |
430 | if (request) { | |
431 | // The al->notes and request->notes must point to the same object. | |
432 | (void)SyncNotes(*al, *request); | |
433 | for (auto i = Config.notes.begin(); i != Config.notes.end(); ++i) { | |
434 | if (const char *value = (*i)->match(request, al->reply, NULL)) { | |
435 | NotePairs ¬es = SyncNotes(*al, *request); | |
436 | notes.add((*i)->key.termedBuf(), value); | |
437 | debugs(33, 3, (*i)->key.termedBuf() << " " << value); | |
438 | } | |
d7f4a0b7 CT |
439 | } |
440 | } | |
441 | ||
8ebad780 | 442 | ACLFilledChecklist checklist(NULL, request, NULL); |
b248c2a3 | 443 | if (al->reply) { |
8ebad780 CT |
444 | checklist.reply = al->reply; |
445 | HTTPMSGLOCK(checklist.reply); | |
b248c2a3 | 446 | } |
62e76326 | 447 | |
8ebad780 CT |
448 | if (request) { |
449 | al->adapted_request = request; | |
450 | HTTPMSGLOCK(al->adapted_request); | |
451 | } | |
452 | accessLogLog(al, &checklist); | |
453 | ||
454 | bool updatePerformanceCounters = true; | |
455 | if (Config.accessList.stats_collection) { | |
456 | ACLFilledChecklist statsCheck(Config.accessList.stats_collection, request, NULL); | |
457 | if (al->reply) { | |
458 | statsCheck.reply = al->reply; | |
459 | HTTPMSGLOCK(statsCheck.reply); | |
b248c2a3 | 460 | } |
8ebad780 CT |
461 | updatePerformanceCounters = (statsCheck.fastCheck() == ACCESS_ALLOWED); |
462 | } | |
463 | ||
464 | if (updatePerformanceCounters) { | |
2ae98e09 TH |
465 | if (request) |
466 | updateCounters(); | |
7684c4b1 | 467 | |
1b76e6c1 AJ |
468 | if (getConn() != NULL && getConn()->clientConnection != NULL) |
469 | clientdbUpdate(getConn()->clientConnection->remote, logType, AnyP::PROTO_HTTP, out.size); | |
7a2f978b | 470 | } |
c8be6d7b | 471 | } |
472 | ||
473 | void | |
528b2c61 | 474 | ClientHttpRequest::freeResources() |
c8be6d7b | 475 | { |
528b2c61 | 476 | safe_free(uri); |
477 | safe_free(log_uri); | |
478 | safe_free(redirect.location); | |
30abd221 | 479 | range_iter.boundary.clean(); |
6dd9f4bd | 480 | HTTPMSGUNLOCK(request); |
62e76326 | 481 | |
528b2c61 | 482 | if (client_stream.tail) |
62e76326 | 483 | clientStreamAbort((clientStreamNode *)client_stream.tail->data, this); |
c8be6d7b | 484 | } |
485 | ||
486 | void | |
487 | httpRequestFree(void *data) | |
488 | { | |
59a1efb2 | 489 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
c8be6d7b | 490 | assert(http != NULL); |
528b2c61 | 491 | delete http; |
7a2f978b | 492 | } |
493 | ||
494 | /* This is a handler normally called by comm_close() */ | |
ced8def3 | 495 | void ConnStateData::connStateClosed(const CommCloseCbParams &) |
7a2f978b | 496 | { |
6e1d409c | 497 | deleteThis("ConnStateData::connStateClosed"); |
a46d2c0e | 498 | } |
62e76326 | 499 | |
cc1e110a AJ |
500 | #if USE_AUTH |
501 | void | |
502 | ConnStateData::setAuth(const Auth::UserRequest::Pointer &aur, const char *by) | |
503 | { | |
504 | if (auth_ == NULL) { | |
505 | if (aur != NULL) { | |
506 | debugs(33, 2, "Adding connection-auth to " << clientConnection << " from " << by); | |
507 | auth_ = aur; | |
508 | } | |
509 | return; | |
510 | } | |
511 | ||
512 | // clobered with self-pointer | |
513 | // NP: something nasty is going on in Squid, but harmless. | |
514 | if (aur == auth_) { | |
515 | debugs(33, 2, "WARNING: Ignoring duplicate connection-auth for " << clientConnection << " from " << by); | |
516 | return; | |
517 | } | |
518 | ||
519 | /* | |
520 | * Connection-auth relies on a single set of credentials being preserved | |
521 | * for all requests on a connection once they have been setup. | |
522 | * There are several things which need to happen to preserve security | |
523 | * when connection-auth credentials change unexpectedly or are unset. | |
524 | * | |
525 | * 1) auth helper released from any active state | |
526 | * | |
527 | * They can only be reserved by a handshake process which this | |
528 | * connection can now never complete. | |
529 | * This prevents helpers hanging when their connections close. | |
530 | * | |
531 | * 2) pinning is expected to be removed and server conn closed | |
532 | * | |
533 | * The upstream link is authenticated with the same credentials. | |
534 | * Expecting the same level of consistency we should have received. | |
535 | * This prevents upstream being faced with multiple or missing | |
536 | * credentials after authentication. | |
537 | * NP: un-pin is left to the cleanup in ConnStateData::swanSong() | |
538 | * we just trigger that cleanup here via comm_reset_close() or | |
539 | * ConnStateData::stopReceiving() | |
540 | * | |
541 | * 3) the connection needs to close. | |
542 | * | |
543 | * This prevents attackers injecting requests into a connection, | |
544 | * or gateways wrongly multiplexing users into a single connection. | |
545 | * | |
546 | * When credentials are missing closure needs to follow an auth | |
547 | * challenge for best recovery by the client. | |
548 | * | |
549 | * When credentials change there is nothing we can do but abort as | |
550 | * fast as possible. Sending TCP RST instead of an HTTP response | |
551 | * is the best-case action. | |
552 | */ | |
553 | ||
554 | // clobbered with nul-pointer | |
555 | if (aur == NULL) { | |
556 | debugs(33, 2, "WARNING: Graceful closure on " << clientConnection << " due to connection-auth erase from " << by); | |
557 | auth_->releaseAuthServer(); | |
558 | auth_ = NULL; | |
559 | // XXX: need to test whether the connection re-auth challenge is sent. If not, how to trigger it from here. | |
560 | // NP: the current situation seems to fix challenge loops in Safari without visible issues in others. | |
561 | // we stop receiving more traffic but can leave the Job running to terminate after the error or challenge is delivered. | |
562 | stopReceiving("connection-auth removed"); | |
563 | return; | |
564 | } | |
565 | ||
566 | // clobbered with alternative credentials | |
567 | if (aur != auth_) { | |
568 | debugs(33, 2, "ERROR: Closing " << clientConnection << " due to change of connection-auth from " << by); | |
569 | auth_->releaseAuthServer(); | |
570 | auth_ = NULL; | |
571 | // this is a fatal type of problem. | |
572 | // Close the connection immediately with TCP RST to abort all traffic flow | |
573 | comm_reset_close(clientConnection); | |
574 | return; | |
575 | } | |
576 | ||
577 | /* NOT REACHABLE */ | |
578 | } | |
579 | #endif | |
580 | ||
6e1d409c | 581 | // cleans up before destructor is called |
a2ac85d9 | 582 | void |
6e1d409c | 583 | ConnStateData::swanSong() |
a46d2c0e | 584 | { |
73c36fd9 | 585 | debugs(33, 2, HERE << clientConnection); |
f35961af | 586 | flags.readMore = false; |
d442618d | 587 | DeregisterRunner(this); |
f53969cc | 588 | clientdbEstablished(clientConnection->remote, -1); /* decrement */ |
43e45ea7 | 589 | pipeline.terminateAll(0); |
6e1d409c | 590 | |
89b1d7a2 | 591 | unpinConnection(true); |
e3a4aecc | 592 | |
fcc444e3 | 593 | Server::swanSong(); // closes the client connection |
d67acb4e | 594 | |
cc1e110a AJ |
595 | #if USE_AUTH |
596 | // NP: do this bit after closing the connections to avoid side effects from unwanted TCP RST | |
597 | setAuth(NULL, "ConnStateData::SwanSong cleanup"); | |
598 | #endif | |
599 | ||
6e1d409c | 600 | flags.swanSang = true; |
a2ac85d9 | 601 | } |
602 | ||
603 | bool | |
604 | ConnStateData::isOpen() const | |
605 | { | |
10b06767 | 606 | return cbdataReferenceValid(this) && // XXX: checking "this" in a method |
73c36fd9 AJ |
607 | Comm::IsConnOpen(clientConnection) && |
608 | !fd_table[clientConnection->fd].closing(); | |
a2ac85d9 | 609 | } |
610 | ||
611 | ConnStateData::~ConnStateData() | |
612 | { | |
73c36fd9 | 613 | debugs(33, 3, HERE << clientConnection); |
a2ac85d9 | 614 | |
615 | if (isOpen()) | |
e0236918 | 616 | debugs(33, DBG_IMPORTANT, "BUG: ConnStateData did not close " << clientConnection); |
6e1d409c AR |
617 | |
618 | if (!flags.swanSang) | |
e0236918 | 619 | debugs(33, DBG_IMPORTANT, "BUG: ConnStateData was not destroyed properly; " << clientConnection); |
62e76326 | 620 | |
279152e7 AJ |
621 | if (bodyPipe != NULL) |
622 | stopProducingFor(bodyPipe, false); | |
87f237a9 | 623 | |
fcc444e3 AJ |
624 | delete bodyParser; // TODO: pool |
625 | ||
cb4f4424 | 626 | #if USE_OPENSSL |
fd4624d7 | 627 | delete sslServerBump; |
8a7fe008 | 628 | #endif |
7a2f978b | 629 | } |
630 | ||
63be0a78 | 631 | /** |
450fe1cb | 632 | * clientSetKeepaliveFlag() sets request->flags.proxyKeepalive. |
c68e9c6b | 633 | * This is the client-side persistent connection flag. We need |
634 | * to set this relatively early in the request processing | |
635 | * to handle hacks for broken servers and clients. | |
636 | */ | |
92ae4c86 | 637 | void |
59a1efb2 | 638 | clientSetKeepaliveFlag(ClientHttpRequest * http) |
c68e9c6b | 639 | { |
190154cf | 640 | HttpRequest *request = http->request; |
f6329bc3 | 641 | |
7f06a3d8 AJ |
642 | debugs(33, 3, "http_ver = " << request->http_ver); |
643 | debugs(33, 3, "method = " << request->method); | |
62e76326 | 644 | |
4a1acc56 | 645 | // TODO: move to HttpRequest::hdrCacheInit, just like HttpReply. |
e857372a | 646 | request->flags.proxyKeepalive = request->persistent(); |
c68e9c6b | 647 | } |
648 | ||
3e42b356 | 649 | /// checks body length of non-chunked requests |
31be8b80 | 650 | static int |
190154cf | 651 | clientIsContentLengthValid(HttpRequest * r) |
31be8b80 | 652 | { |
3e42b356 AR |
653 | // No Content-Length means this request just has no body, but conflicting |
654 | // Content-Lengths mean a message framing error (RFC 7230 Section 3.3.3 #4). | |
655 | if (r->header.conflictingContentLength()) | |
656 | return 0; | |
657 | ||
914b89a2 | 658 | switch (r->method.id()) { |
62e76326 | 659 | |
c2a7cefd | 660 | case Http::METHOD_GET: |
62e76326 | 661 | |
c2a7cefd | 662 | case Http::METHOD_HEAD: |
62e76326 | 663 | /* We do not want to see a request entity on GET/HEAD requests */ |
664 | return (r->content_length <= 0 || Config.onoff.request_entities); | |
665 | ||
ffc128c4 | 666 | default: |
62e76326 | 667 | /* For other types of requests we don't care */ |
668 | return 1; | |
ffc128c4 | 669 | } |
62e76326 | 670 | |
ffc128c4 | 671 | /* NOT REACHED */ |
31be8b80 | 672 | } |
673 | ||
c8be6d7b | 674 | int |
47f6e231 | 675 | clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength) |
efd900cb | 676 | { |
c8be6d7b | 677 | if (Config.maxRequestBodySize && |
62e76326 | 678 | bodyLength > Config.maxRequestBodySize) |
f53969cc | 679 | return 1; /* too large */ |
62e76326 | 680 | |
efd900cb | 681 | return 0; |
682 | } | |
683 | ||
528b2c61 | 684 | bool |
685 | ClientHttpRequest::multipartRangeRequest() const | |
686 | { | |
687 | return request->multipartRangeRequest(); | |
688 | } | |
689 | ||
4ad60609 | 690 | void |
d6fdeb41 | 691 | clientPackTermBound(String boundary, MemBuf *mb) |
528b2c61 | 692 | { |
4391cd15 | 693 | mb->appendf("\r\n--" SQUIDSTRINGPH "--\r\n", SQUIDSTRINGPRINT(boundary)); |
d6fdeb41 | 694 | debugs(33, 6, "buf offset: " << mb->size); |
528b2c61 | 695 | } |
696 | ||
d6fdeb41 | 697 | void |
30abd221 | 698 | clientPackRangeHdr(const HttpReply * rep, const HttpHdrRangeSpec * spec, String boundary, MemBuf * mb) |
528b2c61 | 699 | { |
75faaa7a | 700 | HttpHeader hdr(hoReply); |
528b2c61 | 701 | assert(rep); |
702 | assert(spec); | |
703 | ||
704 | /* put boundary */ | |
d6fdeb41 | 705 | debugs(33, 5, "appending boundary: " << boundary); |
528b2c61 | 706 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
4391cd15 | 707 | mb->appendf("\r\n--" SQUIDSTRINGPH "\r\n", SQUIDSTRINGPRINT(boundary)); |
528b2c61 | 708 | |
709 | /* stuff the header with required entries and pack it */ | |
62e76326 | 710 | |
789217a2 FC |
711 | if (rep->header.has(Http::HdrType::CONTENT_TYPE)) |
712 | hdr.putStr(Http::HdrType::CONTENT_TYPE, rep->header.getStr(Http::HdrType::CONTENT_TYPE)); | |
62e76326 | 713 | |
528b2c61 | 714 | httpHeaderAddContRange(&hdr, *spec, rep->content_length); |
62e76326 | 715 | |
10201568 | 716 | hdr.packInto(mb); |
519e0948 | 717 | hdr.clean(); |
528b2c61 | 718 | |
719 | /* append <crlf> (we packed a header, not a reply) */ | |
10201568 | 720 | mb->append("\r\n", 2); |
528b2c61 | 721 | } |
722 | ||
63be0a78 | 723 | /** returns expected content length for multi-range replies |
528b2c61 | 724 | * note: assumes that httpHdrRangeCanonize has already been called |
725 | * warning: assumes that HTTP headers for individual ranges at the | |
726 | * time of the actuall assembly will be exactly the same as | |
727 | * the headers when clientMRangeCLen() is called */ | |
728 | int | |
729 | ClientHttpRequest::mRangeCLen() | |
c8be6d7b | 730 | { |
47f6e231 | 731 | int64_t clen = 0; |
c8be6d7b | 732 | MemBuf mb; |
528b2c61 | 733 | |
86a2f789 | 734 | assert(memObject()); |
528b2c61 | 735 | |
2fe7eff9 | 736 | mb.init(); |
528b2c61 | 737 | HttpHdrRange::iterator pos = request->range->begin(); |
62e76326 | 738 | |
528b2c61 | 739 | while (pos != request->range->end()) { |
62e76326 | 740 | /* account for headers for this range */ |
2fe7eff9 | 741 | mb.reset(); |
86a2f789 | 742 | clientPackRangeHdr(memObject()->getReply(), |
62e76326 | 743 | *pos, range_iter.boundary, &mb); |
744 | clen += mb.size; | |
528b2c61 | 745 | |
62e76326 | 746 | /* account for range content */ |
747 | clen += (*pos)->length; | |
528b2c61 | 748 | |
4a7a3d56 | 749 | debugs(33, 6, "clientMRangeCLen: (clen += " << mb.size << " + " << (*pos)->length << ") == " << clen); |
62e76326 | 750 | ++pos; |
528b2c61 | 751 | } |
62e76326 | 752 | |
528b2c61 | 753 | /* account for the terminating boundary */ |
2fe7eff9 | 754 | mb.reset(); |
62e76326 | 755 | |
528b2c61 | 756 | clientPackTermBound(range_iter.boundary, &mb); |
62e76326 | 757 | |
528b2c61 | 758 | clen += mb.size; |
759 | ||
2fe7eff9 | 760 | mb.clean(); |
62e76326 | 761 | |
528b2c61 | 762 | return clen; |
763 | } | |
764 | ||
63be0a78 | 765 | /** |
766 | * generates a "unique" boundary string for multipart responses | |
528b2c61 | 767 | * the caller is responsible for cleaning the string */ |
30abd221 | 768 | String |
528b2c61 | 769 | ClientHttpRequest::rangeBoundaryStr() const |
770 | { | |
528b2c61 | 771 | const char *key; |
7dbca7a4 AJ |
772 | String b(APP_FULLNAME); |
773 | b.append(":",1); | |
86a2f789 | 774 | key = storeEntry()->getMD5Text(); |
528b2c61 | 775 | b.append(key, strlen(key)); |
776 | return b; | |
777 | } | |
778 | ||
63be0a78 | 779 | /** |
7dc5f514 | 780 | * Write a chunk of data to a client socket. If the reply is present, |
781 | * send the reply headers down the wire too, and clean them up when | |
782 | * finished. | |
9e008dda | 783 | * Pre-condition: |
edce4d98 | 784 | * The request is one backed by a connection, not an internal request. |
785 | * data context is not NULL | |
786 | * There are no more entries in the stream chain. | |
2246b732 | 787 | */ |
92ae4c86 | 788 | void |
59a1efb2 | 789 | clientSocketRecipient(clientStreamNode * node, ClientHttpRequest * http, |
2324cda2 | 790 | HttpReply * rep, StoreIOBuffer receivedData) |
edce4d98 | 791 | { |
51571330 AJ |
792 | // dont tryt to deliver if client already ABORTED |
793 | if (!http->getConn() || !cbdataReferenceValid(http->getConn()) || !Comm::IsConnOpen(http->getConn()->clientConnection)) | |
794 | return; | |
795 | ||
edce4d98 | 796 | /* Test preconditions */ |
797 | assert(node != NULL); | |
559da936 | 798 | PROF_start(clientSocketRecipient); |
62e76326 | 799 | /* TODO: handle this rather than asserting |
9e008dda AJ |
800 | * - it should only ever happen if we cause an abort and |
801 | * the callback chain loops back to here, so we can simply return. | |
802 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
edce4d98 | 803 | */ |
804 | assert(cbdataReferenceValid(node)); | |
edce4d98 | 805 | assert(node->node.next == NULL); |
d3dddfb5 | 806 | Http::StreamPointer context = dynamic_cast<Http::Stream *>(node->data.getRaw()); |
94a396a3 | 807 | assert(context != NULL); |
5c336a3b | 808 | |
528b2c61 | 809 | /* TODO: check offset is what we asked for */ |
62e76326 | 810 | |
efd5e784 AJ |
811 | // TODO: enforces HTTP/1 MUST on pipeline order, but is irrelevant to HTTP/2 |
812 | if (context != http->getConn()->pipeline.front()) | |
2324cda2 | 813 | context->deferRecipientForLater(node, rep, receivedData); |
92ae4c86 AR |
814 | else |
815 | http->getConn()->handleReply(rep, receivedData); | |
fc68f6b1 | 816 | |
559da936 | 817 | PROF_stop(clientSocketRecipient); |
edce4d98 | 818 | } |
819 | ||
63be0a78 | 820 | /** |
821 | * Called when a downstream node is no longer interested in | |
edce4d98 | 822 | * our data. As we are a terminal node, this means on aborts |
823 | * only | |
824 | */ | |
825 | void | |
59a1efb2 | 826 | clientSocketDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 827 | { |
edce4d98 | 828 | /* Test preconditions */ |
829 | assert(node != NULL); | |
62e76326 | 830 | /* TODO: handle this rather than asserting |
9e008dda AJ |
831 | * - it should only ever happen if we cause an abort and |
832 | * the callback chain loops back to here, so we can simply return. | |
edce4d98 | 833 | * However, that itself shouldn't happen, so it stays as an assert for now. |
834 | */ | |
835 | assert(cbdataReferenceValid(node)); | |
836 | /* Set null by ContextFree */ | |
edce4d98 | 837 | assert(node->node.next == NULL); |
0655fa4d | 838 | /* this is the assert discussed above */ |
d3dddfb5 | 839 | assert(NULL == dynamic_cast<Http::Stream *>(node->data.getRaw())); |
edce4d98 | 840 | /* We are only called when the client socket shutsdown. |
841 | * Tell the prev pipeline member we're finished | |
842 | */ | |
843 | clientStreamDetach(node, http); | |
7a2f978b | 844 | } |
845 | ||
c8be6d7b | 846 | void |
a46d2c0e | 847 | ConnStateData::readNextRequest() |
c8be6d7b | 848 | { |
73c36fd9 | 849 | debugs(33, 5, HERE << clientConnection << " reading next req"); |
bf8fe701 | 850 | |
97b32442 | 851 | fd_note(clientConnection->fd, "Idle client: Waiting for next request"); |
63be0a78 | 852 | /** |
5ddf7edc | 853 | * Set the timeout BEFORE calling readSomeData(). |
c8be6d7b | 854 | */ |
1cf238db | 855 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
4299f876 | 856 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, |
4cb2536f | 857 | TimeoutDialer, this, ConnStateData::requestTimeout); |
c5c06f02 | 858 | commSetConnTimeout(clientConnection, clientConnection->timeLeft(idleTimeout()), timeoutCall); |
1cf238db | 859 | |
a46d2c0e | 860 | readSomeData(); |
63be0a78 | 861 | /** Please don't do anything with the FD past here! */ |
c8be6d7b | 862 | } |
863 | ||
09d3938c | 864 | static void |
d3dddfb5 | 865 | ClientSocketContextPushDeferredIfNeeded(Http::StreamPointer deferredRequest, ConnStateData * conn) |
c8be6d7b | 866 | { |
73c36fd9 | 867 | debugs(33, 2, HERE << conn->clientConnection << " Sending next"); |
bf8fe701 | 868 | |
63be0a78 | 869 | /** If the client stream is waiting on a socket write to occur, then */ |
62e76326 | 870 | |
c8be6d7b | 871 | if (deferredRequest->flags.deferred) { |
63be0a78 | 872 | /** NO data is allowed to have been sent. */ |
62e76326 | 873 | assert(deferredRequest->http->out.size == 0); |
63be0a78 | 874 | /** defer now. */ |
62e76326 | 875 | clientSocketRecipient(deferredRequest->deferredparams.node, |
876 | deferredRequest->http, | |
877 | deferredRequest->deferredparams.rep, | |
878 | deferredRequest->deferredparams.queuedBuffer); | |
c8be6d7b | 879 | } |
62e76326 | 880 | |
63be0a78 | 881 | /** otherwise, the request is still active in a callbacksomewhere, |
c8be6d7b | 882 | * and we are done |
f4f278b5 | 883 | */ |
f4f278b5 | 884 | } |
885 | ||
0655fa4d | 886 | void |
f4a53cf7 | 887 | ConnStateData::kick() |
1a92a1e2 | 888 | { |
4a4fbcef AJ |
889 | if (!Comm::IsConnOpen(clientConnection)) { |
890 | debugs(33, 2, clientConnection << " Connection was closed"); | |
891 | return; | |
892 | } | |
0655fa4d | 893 | |
f4a53cf7 AJ |
894 | if (pinning.pinned && !Comm::IsConnOpen(pinning.serverConnection)) { |
895 | debugs(33, 2, clientConnection << " Connection was pinned but server side gone. Terminating client connection"); | |
896 | clientConnection->close(); | |
d67acb4e AJ |
897 | return; |
898 | } | |
899 | ||
cf6eb29e CT |
900 | /** \par |
901 | * We are done with the response, and we are either still receiving request | |
902 | * body (early response!) or have already stopped receiving anything. | |
903 | * | |
904 | * If we are still receiving, then clientParseRequest() below will fail. | |
905 | * (XXX: but then we will call readNextRequest() which may succeed and | |
906 | * execute a smuggled request as we are not done with the current request). | |
907 | * | |
908 | * If we stopped because we got everything, then try the next request. | |
909 | * | |
910 | * If we stopped receiving because of an error, then close now to avoid | |
911 | * getting stuck and to prevent accidental request smuggling. | |
912 | */ | |
913 | ||
f4a53cf7 AJ |
914 | if (const char *reason = stoppedReceiving()) { |
915 | debugs(33, 3, "closing for earlier request error: " << reason); | |
916 | clientConnection->close(); | |
cf6eb29e CT |
917 | return; |
918 | } | |
919 | ||
63be0a78 | 920 | /** \par |
f900210a | 921 | * Attempt to parse a request from the request buffer. |
922 | * If we've been fed a pipelined request it may already | |
923 | * be in our read buffer. | |
924 | * | |
63be0a78 | 925 | \par |
f900210a | 926 | * This needs to fall through - if we're unlucky and parse the _last_ request |
927 | * from our read buffer we may never re-register for another client read. | |
928 | */ | |
929 | ||
f4a53cf7 AJ |
930 | if (clientParseRequests()) { |
931 | debugs(33, 3, clientConnection << ": parsed next request from buffer"); | |
f900210a | 932 | } |
933 | ||
63be0a78 | 934 | /** \par |
f900210a | 935 | * Either we need to kick-start another read or, if we have |
936 | * a half-closed connection, kill it after the last request. | |
937 | * This saves waiting for half-closed connections to finished being | |
938 | * half-closed _AND_ then, sometimes, spending "Timeout" time in | |
939 | * the keepalive "Waiting for next request" state. | |
940 | */ | |
f4a53cf7 | 941 | if (commIsHalfClosed(clientConnection->fd) && pipeline.empty()) { |
e500cc89 | 942 | debugs(33, 3, "half-closed client with no pending requests, closing"); |
f4a53cf7 | 943 | clientConnection->close(); |
f900210a | 944 | return; |
945 | } | |
946 | ||
63be0a78 | 947 | /** \par |
f900210a | 948 | * At this point we either have a parsed request (which we've |
949 | * kicked off the processing for) or not. If we have a deferred | |
950 | * request (parsed but deferred for pipeling processing reasons) | |
951 | * then look at processing it. If not, simply kickstart | |
952 | * another read. | |
953 | */ | |
d3dddfb5 | 954 | Http::StreamPointer deferredRequest = pipeline.front(); |
efd5e784 | 955 | if (deferredRequest != nullptr) { |
f4a53cf7 AJ |
956 | debugs(33, 3, clientConnection << ": calling PushDeferredIfNeeded"); |
957 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, this); | |
958 | } else if (flags.readMore) { | |
959 | debugs(33, 3, clientConnection << ": calling readNextRequest()"); | |
960 | readNextRequest(); | |
f35961af AR |
961 | } else { |
962 | // XXX: Can this happen? CONNECT tunnels have deferredRequest set. | |
f4a53cf7 | 963 | debugs(33, DBG_IMPORTANT, MYNAME << "abandoning " << clientConnection); |
f900210a | 964 | } |
1a92a1e2 | 965 | } |
966 | ||
cf6eb29e CT |
967 | void |
968 | ConnStateData::stopSending(const char *error) | |
969 | { | |
970 | debugs(33, 4, HERE << "sending error (" << clientConnection << "): " << error << | |
971 | "; old receiving error: " << | |
972 | (stoppedReceiving() ? stoppedReceiving_ : "none")); | |
fc68f6b1 | 973 | |
cf6eb29e CT |
974 | if (const char *oldError = stoppedSending()) { |
975 | debugs(33, 3, HERE << "already stopped sending: " << oldError); | |
976 | return; // nothing has changed as far as this connection is concerned | |
977 | } | |
978 | stoppedSending_ = error; | |
fc68f6b1 | 979 | |
cf6eb29e CT |
980 | if (!stoppedReceiving()) { |
981 | if (const int64_t expecting = mayNeedToReadMoreBody()) { | |
982 | debugs(33, 5, HERE << "must still read " << expecting << | |
fcc444e3 | 983 | " request body bytes with " << inBuf.length() << " unused"); |
cf6eb29e | 984 | return; // wait for the request receiver to finish reading |
3b299123 | 985 | } |
55e44db9 | 986 | } |
987 | ||
cf6eb29e | 988 | clientConnection->close(); |
55e44db9 | 989 | } |
990 | ||
0655fa4d | 991 | void |
21cd3227 AJ |
992 | ConnStateData::afterClientWrite(size_t size) |
993 | { | |
994 | if (pipeline.empty()) | |
995 | return; | |
996 | ||
d6fdeb41 AJ |
997 | auto ctx = pipeline.front(); |
998 | if (size) { | |
999 | statCounter.client_http.kbytes_out += size; | |
1000 | if (ctx->http->logType.isTcpHit()) | |
1001 | statCounter.client_http.hit_kbytes_out += size; | |
7a2f978b | 1002 | } |
d6fdeb41 | 1003 | ctx->writeComplete(size); |
7a2f978b | 1004 | } |
1005 | ||
d3dddfb5 | 1006 | Http::Stream * |
eacfca83 | 1007 | ConnStateData::abortRequestParsing(const char *const uri) |
038eb4ed | 1008 | { |
eacfca83 | 1009 | ClientHttpRequest *http = new ClientHttpRequest(this); |
fcc444e3 | 1010 | http->req_sz = inBuf.length(); |
edce4d98 | 1011 | http->uri = xstrdup(uri); |
c4b7a5a9 | 1012 | setLogUri (http, uri); |
d3dddfb5 | 1013 | auto *context = new Http::Stream(clientConnection, http); |
eacfca83 | 1014 | StoreIOBuffer tempBuffer; |
c8be6d7b | 1015 | tempBuffer.data = context->reqbuf; |
1016 | tempBuffer.length = HTTP_REQBUF_SZ; | |
edce4d98 | 1017 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1018 | clientReplyStatus, new clientReplyContext(http), clientSocketRecipient, |
62e76326 | 1019 | clientSocketDetach, context, tempBuffer); |
edce4d98 | 1020 | return context; |
038eb4ed | 1021 | } |
1022 | ||
d442618d AJ |
1023 | void |
1024 | ConnStateData::startShutdown() | |
1025 | { | |
1026 | // RegisteredRunner API callback - Squid has been shut down | |
1027 | ||
1028 | // if connection is idle terminate it now, | |
1029 | // otherwise wait for grace period to end | |
e500cc89 | 1030 | if (pipeline.empty()) |
d442618d AJ |
1031 | endingShutdown(); |
1032 | } | |
1033 | ||
1034 | void | |
1035 | ConnStateData::endingShutdown() | |
1036 | { | |
1037 | // RegisteredRunner API callback - Squid shutdown grace period is over | |
1038 | ||
1039 | // force the client connection to close immediately | |
1040 | // swanSong() in the close handler will cleanup. | |
1041 | if (Comm::IsConnOpen(clientConnection)) | |
1042 | clientConnection->close(); | |
1043 | ||
1044 | // deregister now to ensure finalShutdown() does not kill us prematurely. | |
1045 | // fd_table purge will cleanup if close handler was not fast enough. | |
1046 | DeregisterRunner(this); | |
1047 | } | |
1048 | ||
c8be6d7b | 1049 | char * |
1050 | skipLeadingSpace(char *aString) | |
1051 | { | |
1052 | char *result = aString; | |
62e76326 | 1053 | |
c8be6d7b | 1054 | while (xisspace(*aString)) |
62e76326 | 1055 | ++aString; |
1056 | ||
c8be6d7b | 1057 | return result; |
1058 | } | |
1059 | ||
63be0a78 | 1060 | /** |
d4a04ed5 | 1061 | * 'end' defaults to NULL for backwards compatibility |
1062 | * remove default value if we ever get rid of NULL-terminated | |
1063 | * request buffers. | |
1064 | */ | |
1065 | const char * | |
1066 | findTrailingHTTPVersion(const char *uriAndHTTPVersion, const char *end) | |
c8be6d7b | 1067 | { |
d4a04ed5 | 1068 | if (NULL == end) { |
1069 | end = uriAndHTTPVersion + strcspn(uriAndHTTPVersion, "\r\n"); | |
1070 | assert(end); | |
1071 | } | |
62e76326 | 1072 | |
5e263176 | 1073 | for (; end > uriAndHTTPVersion; --end) { |
d4a04ed5 | 1074 | if (*end == '\n' || *end == '\r') |
62e76326 | 1075 | continue; |
1076 | ||
d4a04ed5 | 1077 | if (xisspace(*end)) { |
1078 | if (strncasecmp(end + 1, "HTTP/", 5) == 0) | |
1079 | return end + 1; | |
62e76326 | 1080 | else |
1081 | break; | |
1082 | } | |
c8be6d7b | 1083 | } |
62e76326 | 1084 | |
3f38a55e | 1085 | return NULL; |
c8be6d7b | 1086 | } |
1087 | ||
c8be6d7b | 1088 | void |
727552f4 | 1089 | setLogUri(ClientHttpRequest * http, char const *uri, bool cleanUrl) |
c8be6d7b | 1090 | { |
a46d0227 | 1091 | safe_free(http->log_uri); |
62e76326 | 1092 | |
727552f4 CT |
1093 | if (!cleanUrl) |
1094 | // The uri is already clean just dump it. | |
62e76326 | 1095 | http->log_uri = xstrndup(uri, MAX_URL); |
727552f4 | 1096 | else { |
2bea559d A |
1097 | int flags = 0; |
1098 | switch (Config.uri_whitespace) { | |
1099 | case URI_WHITESPACE_ALLOW: | |
1100 | flags |= RFC1738_ESCAPE_NOSPACE; | |
1101 | ||
1102 | case URI_WHITESPACE_ENCODE: | |
1103 | flags |= RFC1738_ESCAPE_UNESCAPED; | |
1104 | http->log_uri = xstrndup(rfc1738_do_escape(uri, flags), MAX_URL); | |
1105 | break; | |
727552f4 | 1106 | |
2bea559d A |
1107 | case URI_WHITESPACE_CHOP: { |
1108 | flags |= RFC1738_ESCAPE_NOSPACE; | |
1109 | flags |= RFC1738_ESCAPE_UNESCAPED; | |
1110 | http->log_uri = xstrndup(rfc1738_do_escape(uri, flags), MAX_URL); | |
1111 | int pos = strcspn(http->log_uri, w_space); | |
1112 | http->log_uri[pos] = '\0'; | |
1113 | } | |
1114 | break; | |
1115 | ||
1116 | case URI_WHITESPACE_DENY: | |
1117 | case URI_WHITESPACE_STRIP: | |
1118 | default: { | |
1119 | const char *t; | |
1120 | char *tmp_uri = static_cast<char*>(xmalloc(strlen(uri) + 1)); | |
1121 | char *q = tmp_uri; | |
1122 | t = uri; | |
1123 | while (*t) { | |
a38ec4b1 FC |
1124 | if (!xisspace(*t)) { |
1125 | *q = *t; | |
1126 | ++q; | |
1127 | } | |
95dc7ff4 | 1128 | ++t; |
727552f4 | 1129 | } |
2bea559d A |
1130 | *q = '\0'; |
1131 | http->log_uri = xstrndup(rfc1738_escape_unescaped(tmp_uri), MAX_URL); | |
1132 | xfree(tmp_uri); | |
1133 | } | |
1134 | break; | |
1135 | } | |
727552f4 | 1136 | } |
c8be6d7b | 1137 | } |
1138 | ||
3f38a55e | 1139 | static void |
9bafa70d | 1140 | prepareAcceleratedURL(ConnStateData * conn, ClientHttpRequest *http, const Http1::RequestParserPointer &hp) |
62e76326 | 1141 | { |
3f38a55e | 1142 | int vhost = conn->port->vhost; |
1143 | int vport = conn->port->vport; | |
9ff1b8ca | 1144 | static char ipbuf[MAX_IPSTRLEN]; |
c8be6d7b | 1145 | |
be4d35dc | 1146 | http->flags.accel = true; |
c8be6d7b | 1147 | |
3f38a55e | 1148 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
c8be6d7b | 1149 | |
5f3cc9a2 | 1150 | static const SBuf cache_object("cache_object://"); |
9bafa70d | 1151 | if (hp->requestUri().startsWith(cache_object)) |
34399323 | 1152 | return; /* already in good shape */ |
1153 | ||
b1cef121 | 1154 | // XXX: re-use proper URL parser for this |
9bafa70d | 1155 | SBuf url = hp->requestUri(); // use full provided URI if we abort |
b1cef121 AJ |
1156 | do { // use a loop so we can break out of it |
1157 | ::Parser::Tokenizer tok(url); | |
f9688132 | 1158 | if (tok.skip('/')) // origin-form URL already. |
b1cef121 AJ |
1159 | break; |
1160 | ||
62e76326 | 1161 | if (conn->port->vhost) |
1162 | return; /* already in good shape */ | |
1163 | ||
b1cef121 | 1164 | // skip the URI scheme |
9bafa70d | 1165 | static const CharacterSet uriScheme = CharacterSet("URI-scheme","+-.") + CharacterSet::ALPHA + CharacterSet::DIGIT; |
b1cef121 | 1166 | static const SBuf uriSchemeEnd("://"); |
9bafa70d | 1167 | if (!tok.skipAll(uriScheme) || !tok.skip(uriSchemeEnd)) |
b1cef121 | 1168 | break; |
62e76326 | 1169 | |
b1cef121 AJ |
1170 | // skip the authority segment |
1171 | // RFC 3986 complex nested ABNF for "authority" boils down to this: | |
1172 | static const CharacterSet authority = CharacterSet("authority","-._~%:@[]!$&'()*+,;=") + | |
f53969cc | 1173 | CharacterSet::HEXDIG + CharacterSet::ALPHA + CharacterSet::DIGIT; |
9bafa70d | 1174 | if (!tok.skipAll(authority)) |
b1cef121 | 1175 | break; |
62e76326 | 1176 | |
63ccea28 | 1177 | static const SBuf slashUri("/"); |
83e3a594 | 1178 | const SBuf t = tok.remaining(); |
b1cef121 | 1179 | if (t.isEmpty()) |
63ccea28 | 1180 | url = slashUri; |
b1cef121 AJ |
1181 | else if (t[0]=='/') // looks like path |
1182 | url = t; | |
1183 | else if (t[0]=='?' || t[0]=='#') { // looks like query or fragment. fix '/' | |
63ccea28 | 1184 | url = slashUri; |
b1cef121 AJ |
1185 | url.append(t); |
1186 | } // else do nothing. invalid path | |
62e76326 | 1187 | |
b1cef121 | 1188 | } while(false); |
62e76326 | 1189 | |
b1cef121 AJ |
1190 | #if SHOULD_REJECT_UNKNOWN_URLS |
1191 | // reject URI which are not well-formed even after the processing above | |
f9688132 | 1192 | if (url.isEmpty() || url[0] != '/') { |
f1d5359e | 1193 | hp->parseStatusCode = Http::scBadRequest; |
943cdf6d | 1194 | return conn->abortRequestParsing("error:invalid-request"); |
3f38a55e | 1195 | } |
b1cef121 | 1196 | #endif |
3f38a55e | 1197 | |
5463e4b9 | 1198 | if (vport < 0) |
4dd643d5 | 1199 | vport = http->getConn()->clientConnection->local.port(); |
5463e4b9 | 1200 | |
ae7ff0b8 | 1201 | const bool switchedToHttps = conn->switchedToHttps(); |
1202 | const bool tryHostHeader = vhost || switchedToHttps; | |
9ff1b8ca | 1203 | char *host = NULL; |
9bafa70d | 1204 | if (tryHostHeader && (host = hp->getHeaderField("Host"))) { |
5463e4b9 AJ |
1205 | debugs(33, 5, "ACCEL VHOST REWRITE: vhost=" << host << " + vport=" << vport); |
1206 | char thost[256]; | |
1207 | if (vport > 0) { | |
1208 | thost[0] = '\0'; | |
1209 | char *t = NULL; | |
1210 | if (host[strlen(host)] != ']' && (t = strrchr(host,':')) != NULL) { | |
1211 | strncpy(thost, host, (t-host)); | |
1212 | snprintf(thost+(t-host), sizeof(thost)-(t-host), ":%d", vport); | |
1213 | host = thost; | |
1214 | } else if (!t) { | |
1215 | snprintf(thost, sizeof(thost), "%s:%d",host, vport); | |
1216 | host = thost; | |
1217 | } | |
1218 | } // else nothing to alter port-wise. | |
9bafa70d | 1219 | const int url_sz = hp->requestUri().length() + 32 + Config.appendDomainLen + strlen(host); |
62e76326 | 1220 | http->uri = (char *)xcalloc(url_sz, 1); |
de95413f | 1221 | snprintf(http->uri, url_sz, "%s://%s" SQUIDSBUFPH, AnyP::UriScheme(conn->transferProtocol.protocol).c_str(), host, SQUIDSBUFPRINT(url)); |
b1cef121 | 1222 | debugs(33, 5, "ACCEL VHOST REWRITE: " << http->uri); |
5463e4b9 AJ |
1223 | } else if (conn->port->defaultsite /* && !vhost */) { |
1224 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: defaultsite=" << conn->port->defaultsite << " + vport=" << vport); | |
9bafa70d | 1225 | const int url_sz = hp->requestUri().length() + 32 + Config.appendDomainLen + |
f53969cc | 1226 | strlen(conn->port->defaultsite); |
62e76326 | 1227 | http->uri = (char *)xcalloc(url_sz, 1); |
5463e4b9 AJ |
1228 | char vportStr[32]; |
1229 | vportStr[0] = '\0'; | |
1230 | if (vport > 0) { | |
1231 | snprintf(vportStr, sizeof(vportStr),":%d",vport); | |
1232 | } | |
b1cef121 | 1233 | snprintf(http->uri, url_sz, "%s://%s%s" SQUIDSBUFPH, |
de95413f | 1234 | AnyP::UriScheme(conn->transferProtocol.protocol).c_str(), conn->port->defaultsite, vportStr, SQUIDSBUFPRINT(url)); |
b1cef121 | 1235 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: " << http->uri); |
5463e4b9 | 1236 | } else if (vport > 0 /* && (!vhost || no Host:) */) { |
3cc0f4e7 | 1237 | debugs(33, 5, "ACCEL VPORT REWRITE: *_port IP + vport=" << vport); |
5463e4b9 | 1238 | /* Put the local socket IP address as the hostname, with whatever vport we found */ |
9bafa70d | 1239 | const int url_sz = hp->requestUri().length() + 32 + Config.appendDomainLen; |
62e76326 | 1240 | http->uri = (char *)xcalloc(url_sz, 1); |
4dd643d5 | 1241 | http->getConn()->clientConnection->local.toHostStr(ipbuf,MAX_IPSTRLEN); |
b1cef121 | 1242 | snprintf(http->uri, url_sz, "%s://%s:%d" SQUIDSBUFPH, |
4599cded | 1243 | AnyP::UriScheme(conn->transferProtocol.protocol).c_str(), |
b1cef121 AJ |
1244 | ipbuf, vport, SQUIDSBUFPRINT(url)); |
1245 | debugs(33, 5, "ACCEL VPORT REWRITE: " << http->uri); | |
3f38a55e | 1246 | } |
1247 | } | |
1248 | ||
1249 | static void | |
9bafa70d | 1250 | prepareTransparentURL(ConnStateData * conn, ClientHttpRequest *http, const Http1::RequestParserPointer &hp) |
62e76326 | 1251 | { |
b47500dc | 1252 | // TODO Must() on URI !empty when the parser supports throw. For now avoid assert(). |
9bafa70d | 1253 | if (!hp->requestUri().isEmpty() && hp->requestUri()[0] != '/') |
62e76326 | 1254 | return; /* already in good shape */ |
3f38a55e | 1255 | |
1256 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ | |
1257 | ||
9bafa70d AJ |
1258 | if (const char *host = hp->getHeaderField("Host")) { |
1259 | const int url_sz = hp->requestUri().length() + 32 + Config.appendDomainLen + | |
f53969cc | 1260 | strlen(host); |
62e76326 | 1261 | http->uri = (char *)xcalloc(url_sz, 1); |
b47500dc | 1262 | snprintf(http->uri, url_sz, "%s://%s" SQUIDSBUFPH, |
f53969cc | 1263 | AnyP::UriScheme(conn->transferProtocol.protocol).c_str(), host, SQUIDSBUFPRINT(hp->requestUri())); |
b47500dc | 1264 | debugs(33, 5, "TRANSPARENT HOST REWRITE: " << http->uri); |
c8be6d7b | 1265 | } else { |
62e76326 | 1266 | /* Put the local socket IP address as the hostname. */ |
9bafa70d | 1267 | const int url_sz = hp->requestUri().length() + 32 + Config.appendDomainLen; |
62e76326 | 1268 | http->uri = (char *)xcalloc(url_sz, 1); |
f9688132 | 1269 | static char ipbuf[MAX_IPSTRLEN]; |
4dd643d5 | 1270 | http->getConn()->clientConnection->local.toHostStr(ipbuf,MAX_IPSTRLEN); |
b47500dc | 1271 | snprintf(http->uri, url_sz, "%s://%s:%d" SQUIDSBUFPH, |
4599cded | 1272 | AnyP::UriScheme(http->getConn()->transferProtocol.protocol).c_str(), |
9bafa70d | 1273 | ipbuf, http->getConn()->clientConnection->local.port(), SQUIDSBUFPRINT(hp->requestUri())); |
b47500dc | 1274 | debugs(33, 5, "TRANSPARENT REWRITE: " << http->uri); |
c8be6d7b | 1275 | } |
c8be6d7b | 1276 | } |
1277 | ||
7830d88a | 1278 | /** Parse an HTTP request |
9e008dda | 1279 | * |
7830d88a FC |
1280 | * \note Sets result->flags.parsed_ok to 0 if failed to parse the request, |
1281 | * to 1 if the request was correctly parsed. | |
1282 | * \param[in] csd a ConnStateData. The caller must make sure it is not null | |
1b51ee7b | 1283 | * \param[in] hp an Http1::RequestParser |
7830d88a FC |
1284 | * \param[out] mehtod_p will be set as a side-effect of the parsing. |
1285 | * Pointed-to value will be set to Http::METHOD_NONE in case of | |
1286 | * parsing failure | |
1287 | * \param[out] http_ver will be set as a side-effect of the parsing | |
1288 | * \return NULL on incomplete requests, | |
d3dddfb5 | 1289 | * a Http::Stream on success or failure. |
7a2f978b | 1290 | */ |
d3dddfb5 | 1291 | Http::Stream * |
9bafa70d | 1292 | parseHttpRequest(ConnStateData *csd, const Http1::RequestParserPointer &hp) |
7a2f978b | 1293 | { |
87abd755 AJ |
1294 | /* Attempt to parse the first line; this will define where the method, url, version and header begin */ |
1295 | { | |
fcc444e3 | 1296 | const bool parsedOk = hp->parse(csd->inBuf); |
fc68f6b1 | 1297 | |
3248e962 | 1298 | if (csd->port->flags.isIntercepted() && Config.accessList.on_unsupported_protocol) |
fcc444e3 | 1299 | csd->preservedClientData = csd->inBuf; |
36a9c964 | 1300 | // sync the buffers after parsing. |
fcc444e3 | 1301 | csd->inBuf = hp->remaining(); |
7a4fa6a0 | 1302 | |
9bafa70d | 1303 | if (hp->needsMoreData()) { |
87abd755 AJ |
1304 | debugs(33, 5, "Incomplete request, waiting for end of request line"); |
1305 | return NULL; | |
1306 | } | |
fc68f6b1 | 1307 | |
016a316b | 1308 | if (!parsedOk) { |
f1d5359e | 1309 | if (hp->parseStatusCode == Http::scRequestHeaderFieldsTooLarge || hp->parseStatusCode == Http::scUriTooLong) |
943cdf6d | 1310 | return csd->abortRequestParsing("error:request-too-large"); |
016a316b | 1311 | |
943cdf6d | 1312 | return csd->abortRequestParsing("error:invalid-request"); |
016a316b | 1313 | } |
84cc2635 | 1314 | } |
fc68f6b1 | 1315 | |
6d0613b2 AJ |
1316 | /* We know the whole request is in parser now */ |
1317 | debugs(11, 2, "HTTP Client " << csd->clientConnection); | |
1318 | debugs(11, 2, "HTTP Client REQUEST:\n---------\n" << | |
9bafa70d AJ |
1319 | hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol() << "\n" << |
1320 | hp->mimeHeader() << | |
6d0613b2 | 1321 | "\n----------"); |
fc68f6b1 | 1322 | |
adf29627 | 1323 | /* deny CONNECT via accelerated ports */ |
9bafa70d | 1324 | if (hp->method() == Http::METHOD_CONNECT && csd->port != NULL && csd->port->flags.accelSurrogate) { |
4599cded | 1325 | debugs(33, DBG_IMPORTANT, "WARNING: CONNECT method received on " << csd->transferProtocol << " Accelerator port " << csd->port->s.port()); |
9bafa70d | 1326 | debugs(33, DBG_IMPORTANT, "WARNING: for request: " << hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol()); |
f1d5359e | 1327 | hp->parseStatusCode = Http::scMethodNotAllowed; |
eacfca83 | 1328 | return csd->abortRequestParsing("error:method-not-allowed"); |
adf29627 AJ |
1329 | } |
1330 | ||
c27e1e37 | 1331 | /* RFC 7540 section 11.6 registers the method PRI as HTTP/2 specific |
5de5c2d0 AJ |
1332 | * Deny "PRI" method if used in HTTP/1.x or 0.9 versions. |
1333 | * If seen it signals a broken client or proxy has corrupted the traffic. | |
1334 | */ | |
1335 | if (hp->method() == Http::METHOD_PRI && hp->messageProtocol() < Http::ProtocolVersion(2,0)) { | |
1336 | debugs(33, DBG_IMPORTANT, "WARNING: PRI method received on " << csd->transferProtocol << " port " << csd->port->s.port()); | |
1337 | debugs(33, DBG_IMPORTANT, "WARNING: for request: " << hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol()); | |
093c6381 | 1338 | hp->parseStatusCode = Http::scMethodNotAllowed; |
5de5c2d0 AJ |
1339 | return csd->abortRequestParsing("error:method-not-allowed"); |
1340 | } | |
1341 | ||
9bafa70d AJ |
1342 | if (hp->method() == Http::METHOD_NONE) { |
1343 | debugs(33, DBG_IMPORTANT, "WARNING: Unsupported method: " << hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol()); | |
f1d5359e | 1344 | hp->parseStatusCode = Http::scMethodNotAllowed; |
eacfca83 | 1345 | return csd->abortRequestParsing("error:unsupported-request-method"); |
3f38a55e | 1346 | } |
7a2f978b | 1347 | |
6d0613b2 AJ |
1348 | // Process headers after request line |
1349 | debugs(33, 3, "complete request received. " << | |
9bafa70d AJ |
1350 | "prefix_sz = " << hp->messageHeaderSize() << |
1351 | ", request-line-size=" << hp->firstLineSize() << | |
1352 | ", mime-header-size=" << hp->headerBlockSize() << | |
1353 | ", mime header block:\n" << hp->mimeHeader() << "\n----------"); | |
62e76326 | 1354 | |
7a2f978b | 1355 | /* Ok, all headers are received */ |
9ff1b8ca AJ |
1356 | ClientHttpRequest *http = new ClientHttpRequest(csd); |
1357 | ||
9bafa70d | 1358 | http->req_sz = hp->messageHeaderSize(); |
d3dddfb5 | 1359 | Http::Stream *result = new Http::Stream(csd->clientConnection, http); |
62e76326 | 1360 | |
9ff1b8ca | 1361 | StoreIOBuffer tempBuffer; |
c8be6d7b | 1362 | tempBuffer.data = result->reqbuf; |
1363 | tempBuffer.length = HTTP_REQBUF_SZ; | |
62e76326 | 1364 | |
0655fa4d | 1365 | ClientStreamData newServer = new clientReplyContext(http); |
0655fa4d | 1366 | ClientStreamData newClient = result; |
edce4d98 | 1367 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1368 | clientReplyStatus, newServer, clientSocketRecipient, |
1369 | clientSocketDetach, newClient, tempBuffer); | |
62e76326 | 1370 | |
3ff65596 | 1371 | /* set url */ |
450e09f9 | 1372 | debugs(33,5, "Prepare absolute URL from " << |
2ee34428 | 1373 | (csd->transparent()?"intercept":(csd->port->flags.accelSurrogate ? "accel":""))); |
3f38a55e | 1374 | /* Rewrite the URL in transparent or accelerator mode */ |
89272111 AJ |
1375 | /* NP: there are several cases to traverse here: |
1376 | * - standard mode (forward proxy) | |
1377 | * - transparent mode (TPROXY) | |
1378 | * - transparent mode with failures | |
1379 | * - intercept mode (NAT) | |
1380 | * - intercept mode with failures | |
1381 | * - accelerator mode (reverse proxy) | |
51b5dcf5 | 1382 | * - internal relative-URL |
89272111 | 1383 | * - mixed combos of the above with internal URL |
151ba0d4 AJ |
1384 | * - remote interception with PROXY protocol |
1385 | * - remote reverse-proxy with PROXY protocol | |
89272111 | 1386 | */ |
be364179 | 1387 | if (csd->transparent()) { |
89272111 | 1388 | /* intercept or transparent mode, properly working with no failures */ |
5f3cc9a2 | 1389 | prepareTransparentURL(csd, http, hp); |
89272111 | 1390 | |
51b5dcf5 | 1391 | } else if (internalCheck(hp->requestUri())) { // NP: only matches relative-URI |
89272111 | 1392 | /* internal URL mode */ |
2f2749d7 | 1393 | /* prepend our name & port */ |
51b5dcf5 | 1394 | http->uri = xstrdup(internalLocalUri(NULL, hp->requestUri())); |
59c59acf AJ |
1395 | // We just re-wrote the URL. Must replace the Host: header. |
1396 | // But have not parsed there yet!! flag for local-only handling. | |
be4d35dc | 1397 | http->flags.internal = true; |
59c59acf | 1398 | |
6a25a046 | 1399 | } else if (csd->port->flags.accelSurrogate || csd->switchedToHttps()) { |
59c59acf | 1400 | /* accelerator mode */ |
5f3cc9a2 | 1401 | prepareAcceleratedURL(csd, http, hp); |
3f38a55e | 1402 | } |
1403 | ||
1404 | if (!http->uri) { | |
62e76326 | 1405 | /* No special rewrites have been applied above, use the |
1406 | * requested url. may be rewritten later, so make extra room */ | |
9bafa70d | 1407 | int url_sz = hp->requestUri().length() + Config.appendDomainLen + 5; |
62e76326 | 1408 | http->uri = (char *)xcalloc(url_sz, 1); |
3f0e38d6 | 1409 | SBufToCstring(http->uri, hp->requestUri()); |
3f38a55e | 1410 | } |
62e76326 | 1411 | |
c4b7a5a9 | 1412 | result->flags.parsed_ok = 1; |
c8be6d7b | 1413 | return result; |
7a2f978b | 1414 | } |
1415 | ||
fcc444e3 | 1416 | bool |
1cf238db | 1417 | ConnStateData::connFinishedWithConn(int size) |
c8be6d7b | 1418 | { |
1419 | if (size == 0) { | |
e500cc89 | 1420 | if (pipeline.empty() && inBuf.isEmpty()) { |
62e76326 | 1421 | /* no current or pending requests */ |
73c36fd9 | 1422 | debugs(33, 4, HERE << clientConnection << " closed"); |
fcc444e3 | 1423 | return true; |
62e76326 | 1424 | } else if (!Config.onoff.half_closed_clients) { |
1425 | /* admin doesn't want to support half-closed client sockets */ | |
73c36fd9 | 1426 | debugs(33, 3, HERE << clientConnection << " aborted (half_closed_clients disabled)"); |
08a175bb | 1427 | pipeline.terminateAll(0); |
fcc444e3 | 1428 | return true; |
62e76326 | 1429 | } |
c8be6d7b | 1430 | } |
62e76326 | 1431 | |
fcc444e3 | 1432 | return false; |
c8be6d7b | 1433 | } |
1434 | ||
92ae4c86 AR |
1435 | void |
1436 | ConnStateData::consumeInput(const size_t byteCount) | |
1437 | { | |
fcc444e3 AJ |
1438 | assert(byteCount > 0 && byteCount <= inBuf.length()); |
1439 | inBuf.consume(byteCount); | |
1440 | debugs(33, 5, "inBuf has " << inBuf.length() << " unused bytes"); | |
92ae4c86 AR |
1441 | } |
1442 | ||
1cf238db | 1443 | void |
f35961af | 1444 | ConnStateData::clientAfterReadingRequests() |
c4b7a5a9 | 1445 | { |
39cb8c41 | 1446 | // Were we expecting to read more request body from half-closed connection? |
73c36fd9 AJ |
1447 | if (mayNeedToReadMoreBody() && commIsHalfClosed(clientConnection->fd)) { |
1448 | debugs(33, 3, HERE << "truncated body: closing half-closed " << clientConnection); | |
1449 | clientConnection->close(); | |
39cb8c41 | 1450 | return; |
c4b7a5a9 | 1451 | } |
1452 | ||
f35961af AR |
1453 | if (flags.readMore) |
1454 | readSomeData(); | |
c4b7a5a9 | 1455 | } |
1456 | ||
84c77748 AR |
1457 | void |
1458 | ConnStateData::quitAfterError(HttpRequest *request) | |
1459 | { | |
1460 | // From HTTP p.o.v., we do not have to close after every error detected | |
1461 | // at the client-side, but many such errors do require closure and the | |
1462 | // client-side code is bad at handling errors so we play it safe. | |
1463 | if (request) | |
e857372a | 1464 | request->flags.proxyKeepalive = false; |
84c77748 AR |
1465 | flags.readMore = false; |
1466 | debugs(33,4, HERE << "Will close after error: " << clientConnection); | |
1467 | } | |
1468 | ||
cb4f4424 | 1469 | #if USE_OPENSSL |
d3dddfb5 | 1470 | bool ConnStateData::serveDelayedError(Http::Stream *context) |
8eb0a7ee CT |
1471 | { |
1472 | ClientHttpRequest *http = context->http; | |
fd4624d7 CT |
1473 | |
1474 | if (!sslServerBump) | |
8eb0a7ee CT |
1475 | return false; |
1476 | ||
fd4624d7 | 1477 | assert(sslServerBump->entry); |
7a957a93 | 1478 | // Did we create an error entry while processing CONNECT? |
fd4624d7 | 1479 | if (!sslServerBump->entry->isEmpty()) { |
84c77748 AR |
1480 | quitAfterError(http->request); |
1481 | ||
7a957a93 AR |
1482 | // Get the saved error entry and send it to the client by replacing the |
1483 | // ClientHttpRequest store entry with it. | |
8eb0a7ee CT |
1484 | clientStreamNode *node = context->getClientReplyContext(); |
1485 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
7a957a93 AR |
1486 | assert(repContext); |
1487 | debugs(33, 5, "Responding with delated error for " << http->uri); | |
f0baf149 | 1488 | repContext->setReplyToStoreEntry(sslServerBump->entry, "delayed SslBump error"); |
7a957a93 AR |
1489 | |
1490 | // save the original request for logging purposes | |
b248c2a3 AJ |
1491 | if (!context->http->al->request) { |
1492 | context->http->al->request = http->request; | |
1493 | HTTPMSGLOCK(context->http->al->request); | |
1494 | } | |
7a957a93 AR |
1495 | |
1496 | // Get error details from the fake certificate-peeking request. | |
129fe2a1 | 1497 | http->request->detailError(sslServerBump->request->errType, sslServerBump->request->errDetail); |
8eb0a7ee | 1498 | context->pullData(); |
8eb0a7ee CT |
1499 | return true; |
1500 | } | |
1501 | ||
7a957a93 AR |
1502 | // In bump-server-first mode, we have not necessarily seen the intended |
1503 | // server name at certificate-peeking time. Check for domain mismatch now, | |
1504 | // when we can extract the intended name from the bumped HTTP request. | |
62a7607e | 1505 | if (X509 *srvCert = sslServerBump->serverCert.get()) { |
8eb0a7ee | 1506 | HttpRequest *request = http->request; |
5c51bffb | 1507 | if (!Ssl::checkX509ServerValidity(srvCert, request->url.host())) { |
7a957a93 | 1508 | debugs(33, 2, "SQUID_X509_V_ERR_DOMAIN_MISMATCH: Certificate " << |
5c51bffb | 1509 | "does not match domainname " << request->url.host()); |
8eb0a7ee | 1510 | |
d4a56c34 | 1511 | bool allowDomainMismatch = false; |
638402dd AJ |
1512 | if (Config.ssl_client.cert_error) { |
1513 | ACLFilledChecklist check(Config.ssl_client.cert_error, request, dash_str); | |
62a7607e | 1514 | check.sslErrors = new Ssl::CertErrors(Ssl::CertError(SQUID_X509_V_ERR_DOMAIN_MISMATCH, srvCert)); |
d4a56c34 | 1515 | allowDomainMismatch = (check.fastCheck() == ACCESS_ALLOWED); |
638402dd AJ |
1516 | delete check.sslErrors; |
1517 | check.sslErrors = NULL; | |
1518 | } | |
8eb0a7ee | 1519 | |
7d82c5b8 | 1520 | if (!allowDomainMismatch) { |
84c77748 AR |
1521 | quitAfterError(request); |
1522 | ||
8eb0a7ee CT |
1523 | clientStreamNode *node = context->getClientReplyContext(); |
1524 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1525 | assert (repContext); | |
1526 | ||
7a957a93 | 1527 | // Fill the server IP and hostname for error page generation. |
fd4624d7 | 1528 | HttpRequest::Pointer const & peekerRequest = sslServerBump->request; |
5c51bffb | 1529 | request->hier.note(peekerRequest->hier.tcpServer, request->url.host()); |
7a957a93 | 1530 | |
8eb0a7ee | 1531 | // Create an error object and fill it |
955394ce | 1532 | ErrorState *err = new ErrorState(ERR_SECURE_CONNECT_FAIL, Http::scServiceUnavailable, request); |
8eb0a7ee | 1533 | err->src_addr = clientConnection->remote; |
7a957a93 AR |
1534 | Ssl::ErrorDetail *errDetail = new Ssl::ErrorDetail( |
1535 | SQUID_X509_V_ERR_DOMAIN_MISMATCH, | |
62a7607e | 1536 | srvCert, NULL); |
8eb0a7ee | 1537 | err->detail = errDetail; |
7a957a93 | 1538 | // Save the original request for logging purposes. |
b248c2a3 AJ |
1539 | if (!context->http->al->request) { |
1540 | context->http->al->request = request; | |
1541 | HTTPMSGLOCK(context->http->al->request); | |
1542 | } | |
8eb0a7ee CT |
1543 | repContext->setReplyToError(request->method, err); |
1544 | assert(context->http->out.offset == 0); | |
1545 | context->pullData(); | |
8eb0a7ee CT |
1546 | return true; |
1547 | } | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | return false; | |
1552 | } | |
cb4f4424 | 1553 | #endif // USE_OPENSSL |
8eb0a7ee | 1554 | |
3248e962 CT |
1555 | /** |
1556 | * Check on_unsupported_protocol checklist and return true if tunnel mode selected | |
1557 | * or false otherwise | |
1558 | */ | |
1559 | bool | |
d3dddfb5 | 1560 | clientTunnelOnError(ConnStateData *conn, Http::Stream *context, HttpRequest *request, const HttpRequestMethod& method, err_type requestError, Http::StatusCode errStatusCode, const char *requestErrorBytes) |
3248e962 CT |
1561 | { |
1562 | if (conn->port->flags.isIntercepted() && | |
2e3f31e0 | 1563 | Config.accessList.on_unsupported_protocol && conn->pipeline.nrequests <= 1) { |
3248e962 CT |
1564 | ACLFilledChecklist checklist(Config.accessList.on_unsupported_protocol, request, NULL); |
1565 | checklist.requestErrorType = requestError; | |
1566 | checklist.src_addr = conn->clientConnection->remote; | |
1567 | checklist.my_addr = conn->clientConnection->local; | |
1568 | checklist.conn(conn); | |
1569 | allow_t answer = checklist.fastCheck(); | |
1570 | if (answer == ACCESS_ALLOWED && answer.kind == 1) { | |
1571 | debugs(33, 3, "Request will be tunneled to server"); | |
6400749d | 1572 | if (context) { |
54a3494d AJ |
1573 | // XXX: Either the context is finished() or it should stay queued. |
1574 | // The below may leak client streams BodyPipe objects. BUT, we need | |
1575 | // to check if client-streams detatch is safe to do here (finished() will detatch). | |
6400749d | 1576 | assert(conn->pipeline.front() == context); // XXX: still assumes HTTP/1 semantics |
d3dddfb5 | 1577 | conn->pipeline.popMe(Http::StreamPointer(context)); |
6400749d | 1578 | } |
3248e962 | 1579 | Comm::SetSelect(conn->clientConnection->fd, COMM_SELECT_READ, NULL, NULL, 0); |
a30b692c | 1580 | conn->fakeAConnectRequest("unknown-protocol", conn->preservedClientData); |
3248e962 CT |
1581 | return true; |
1582 | } else { | |
1583 | debugs(33, 3, "Continue with returning the error: " << requestError); | |
1584 | } | |
1585 | } | |
1586 | ||
1587 | if (context) { | |
1588 | conn->quitAfterError(request); | |
1589 | clientStreamNode *node = context->getClientReplyContext(); | |
1590 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1591 | assert (repContext); | |
1592 | ||
1593 | repContext->setReplyToError(requestError, errStatusCode, method, context->http->uri, conn->clientConnection->remote, NULL, requestErrorBytes, NULL); | |
1594 | ||
1595 | assert(context->http->out.offset == 0); | |
1596 | context->pullData(); | |
1597 | } // else Probably an ERR_REQUEST_START_TIMEOUT error so just return. | |
1598 | return false; | |
1599 | } | |
1600 | ||
ec69bdb2 | 1601 | void |
28fd6d0b AJ |
1602 | clientProcessRequestFinished(ConnStateData *conn, const HttpRequest::Pointer &request) |
1603 | { | |
1604 | /* | |
1605 | * DPW 2007-05-18 | |
1606 | * Moved the TCP_RESET feature from clientReplyContext::sendMoreData | |
1607 | * to here because calling comm_reset_close() causes http to | |
48a37aee | 1608 | * be freed before accessing. |
28fd6d0b AJ |
1609 | */ |
1610 | if (request != NULL && request->flags.resetTcp && Comm::IsConnOpen(conn->clientConnection)) { | |
1611 | debugs(33, 3, HERE << "Sending TCP RST on " << conn->clientConnection); | |
1612 | conn->flags.readMore = false; | |
1613 | comm_reset_close(conn->clientConnection); | |
1614 | } | |
1615 | } | |
1616 | ||
9bafa70d | 1617 | void |
d3dddfb5 | 1618 | clientProcessRequest(ConnStateData *conn, const Http1::RequestParserPointer &hp, Http::Stream *context) |
c4b7a5a9 | 1619 | { |
59a1efb2 | 1620 | ClientHttpRequest *http = context->http; |
39cb8c41 | 1621 | bool chunked = false; |
e18b8316 | 1622 | bool mustReplyToOptions = false; |
3ff65596 | 1623 | bool unsupportedTe = false; |
39cb8c41 | 1624 | bool expectBody = false; |
5f8252d2 | 1625 | |
ec69bdb2 CT |
1626 | // We already have the request parsed and checked, so we |
1627 | // only need to go through the final body/conn setup to doCallouts(). | |
1628 | assert(http->request); | |
1629 | HttpRequest::Pointer request = http->request; | |
1630 | ||
92ae4c86 | 1631 | // temporary hack to avoid splitting this huge function with sensitive code |
f9688132 | 1632 | const bool isFtp = !hp; |
9bafa70d | 1633 | |
92ae4c86 AR |
1634 | // Some blobs below are still HTTP-specific, but we would have to rewrite |
1635 | // this entire function to remove them from the FTP code path. Connection | |
1636 | // setup and body_pipe preparation blobs are needed for FTP. | |
1637 | ||
40d34a62 AJ |
1638 | request->clientConnectionManager = conn; |
1639 | ||
c4b7a5a9 | 1640 | request->flags.accelerated = http->flags.accel; |
450fe1cb | 1641 | request->flags.sslBumped=conn->switchedToHttps(); |
450fe1cb | 1642 | request->flags.ignoreCc = conn->port->ignore_cc; |
7fb65ee4 | 1643 | // TODO: decouple http->flags.accel from request->flags.sslBumped |
450fe1cb | 1644 | request->flags.noDirect = (request->flags.accelerated && !request->flags.sslBumped) ? |
e4a14600 | 1645 | !conn->port->allow_direct : 0; |
88df846b | 1646 | request->sources |= isFtp ? HttpMsg::srcFtp : |
ff89bfa0 | 1647 | ((request->flags.sslBumped || conn->port->transport.protocol == AnyP::PROTO_HTTPS) ? HttpMsg::srcHttps : HttpMsg::srcHttp); |
21512911 CT |
1648 | #if USE_AUTH |
1649 | if (request->flags.sslBumped) { | |
cc1e110a AJ |
1650 | if (conn->getAuth() != NULL) |
1651 | request->auth_user_request = conn->getAuth(); | |
21512911 CT |
1652 | } |
1653 | #endif | |
2ad20b4f AJ |
1654 | |
1655 | /** \par | |
1656 | * If transparent or interception mode is working clone the transparent and interception flags | |
1657 | * from the port settings to the request. | |
1658 | */ | |
40d34a62 | 1659 | if (http->clientConnection != NULL) { |
304a6180 | 1660 | request->flags.intercepted = ((http->clientConnection->flags & COMM_INTERCEPTION) != 0); |
0d901ef4 | 1661 | request->flags.interceptTproxy = ((http->clientConnection->flags & COMM_TRANSPARENT) != 0 ) ; |
13edf4cc AJ |
1662 | static const bool proxyProtocolPort = (conn->port != NULL) ? conn->port->flags.proxySurrogate : false; |
1663 | if (request->flags.interceptTproxy && !proxyProtocolPort) { | |
0d901ef4 SH |
1664 | if (Config.accessList.spoof_client_ip) { |
1665 | ACLFilledChecklist *checklist = clientAclChecklistCreate(Config.accessList.spoof_client_ip, http); | |
1666 | request->flags.spoofClientIp = (checklist->fastCheck() == ACCESS_ALLOWED); | |
1667 | delete checklist; | |
1668 | } else | |
1669 | request->flags.spoofClientIp = true; | |
1670 | } else | |
1671 | request->flags.spoofClientIp = false; | |
2ad20b4f | 1672 | } |
fc68f6b1 | 1673 | |
51b5dcf5 | 1674 | if (internalCheck(request->url.path())) { |
5c51bffb AJ |
1675 | if (internalHostnameIs(request->url.host()) && request->url.port() == getMyPort()) { |
1676 | debugs(33, 2, "internal URL found: " << request->url.getScheme() << "://" << request->url.authority(true)); | |
be4d35dc | 1677 | http->flags.internal = true; |
51b5dcf5 | 1678 | } else if (Config.onoff.global_internal_static && internalStaticCheck(request->url.path())) { |
5c51bffb | 1679 | debugs(33, 2, "internal URL found: " << request->url.getScheme() << "://" << request->url.authority(true) << " (global_internal_static on)"); |
f6894d37 | 1680 | request->url.setScheme(AnyP::PROTO_HTTP); |
851feda6 | 1681 | request->url.host(internalHostname()); |
5c51bffb | 1682 | request->url.port(getMyPort()); |
be4d35dc | 1683 | http->flags.internal = true; |
4e3f4dc7 | 1684 | } else |
5c51bffb | 1685 | debugs(33, 2, "internal URL found: " << request->url.getScheme() << "://" << request->url.authority(true) << " (not this proxy)"); |
f024c970 | 1686 | } |
e72a0ec0 | 1687 | |
c4b7a5a9 | 1688 | request->flags.internal = http->flags.internal; |
b248c2a3 | 1689 | setLogUri (http, urlCanonicalClean(request.getRaw())); |
73c36fd9 | 1690 | request->client_addr = conn->clientConnection->remote; // XXX: remove reuest->client_addr member. |
3d674977 | 1691 | #if FOLLOW_X_FORWARDED_FOR |
40d34a62 AJ |
1692 | // indirect client gets stored here because it is an HTTP header result (from X-Forwarded-For:) |
1693 | // not a details about teh TCP connection itself | |
73c36fd9 | 1694 | request->indirect_client_addr = conn->clientConnection->remote; |
3d674977 | 1695 | #endif /* FOLLOW_X_FORWARDED_FOR */ |
73c36fd9 | 1696 | request->my_addr = conn->clientConnection->local; |
35fb56c9 | 1697 | request->myportname = conn->port->name; |
9bafa70d AJ |
1698 | |
1699 | if (!isFtp) { | |
1700 | // XXX: for non-HTTP messages instantiate a different HttpMsg child type | |
1701 | // for now Squid only supports HTTP requests | |
1702 | const AnyP::ProtocolVersion &http_ver = hp->messageProtocol(); | |
1703 | assert(request->http_ver.protocol == http_ver.protocol); | |
1704 | request->http_ver.major = http_ver.major; | |
1705 | request->http_ver.minor = http_ver.minor; | |
1706 | } | |
62e76326 | 1707 | |
9174ba3d AJ |
1708 | // Link this HttpRequest to ConnStateData relatively early so the following complex handling can use it |
1709 | // TODO: this effectively obsoletes a lot of conn->FOO copying. That needs cleaning up later. | |
1710 | request->clientConnectionManager = conn; | |
1711 | ||
39cb8c41 AR |
1712 | if (request->header.chunked()) { |
1713 | chunked = true; | |
789217a2 FC |
1714 | } else if (request->header.has(Http::HdrType::TRANSFER_ENCODING)) { |
1715 | const String te = request->header.getList(Http::HdrType::TRANSFER_ENCODING); | |
39cb8c41 AR |
1716 | // HTTP/1.1 requires chunking to be the last encoding if there is one |
1717 | unsupportedTe = te.size() && te != "identity"; | |
1718 | } // else implied identity coding | |
de48b288 | 1719 | |
f9688132 | 1720 | mustReplyToOptions = (request->method == Http::METHOD_OPTIONS) && |
789217a2 | 1721 | (request->header.getInt64(Http::HdrType::MAX_FORWARDS) == 0); |
b248c2a3 | 1722 | if (!urlCheckRequest(request.getRaw()) || mustReplyToOptions || unsupportedTe) { |
62e76326 | 1723 | clientStreamNode *node = context->getClientReplyContext(); |
b248c2a3 | 1724 | conn->quitAfterError(request.getRaw()); |
0655fa4d | 1725 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
1726 | assert (repContext); | |
955394ce | 1727 | repContext->setReplyToError(ERR_UNSUP_REQ, Http::scNotImplemented, request->method, NULL, |
b248c2a3 | 1728 | conn->clientConnection->remote, request.getRaw(), NULL, NULL); |
62e76326 | 1729 | assert(context->http->out.offset == 0); |
1730 | context->pullData(); | |
28fd6d0b AJ |
1731 | clientProcessRequestFinished(conn, request); |
1732 | return; | |
c4b7a5a9 | 1733 | } |
1734 | ||
b248c2a3 | 1735 | if (!chunked && !clientIsContentLengthValid(request.getRaw())) { |
62e76326 | 1736 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 1737 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
1738 | assert (repContext); | |
b248c2a3 | 1739 | conn->quitAfterError(request.getRaw()); |
0655fa4d | 1740 | repContext->setReplyToError(ERR_INVALID_REQ, |
955394ce | 1741 | Http::scLengthRequired, request->method, NULL, |
b248c2a3 | 1742 | conn->clientConnection->remote, request.getRaw(), NULL, NULL); |
62e76326 | 1743 | assert(context->http->out.offset == 0); |
1744 | context->pullData(); | |
28fd6d0b AJ |
1745 | clientProcessRequestFinished(conn, request); |
1746 | return; | |
c4b7a5a9 | 1747 | } |
1748 | ||
92ae4c86 | 1749 | clientSetKeepaliveFlag(http); |
f35961af | 1750 | // Let tunneling code be fully responsible for CONNECT requests |
c2a7cefd | 1751 | if (http->request->method == Http::METHOD_CONNECT) { |
b66e0e86 | 1752 | context->mayUseConnection(true); |
f35961af AR |
1753 | conn->flags.readMore = false; |
1754 | } | |
fc68f6b1 | 1755 | |
cb4f4424 | 1756 | #if USE_OPENSSL |
28fd6d0b | 1757 | if (conn->switchedToHttps() && conn->serveDelayedError(context)) { |
28fd6d0b AJ |
1758 | clientProcessRequestFinished(conn, request); |
1759 | return; | |
1760 | } | |
061bbdec CT |
1761 | #endif |
1762 | ||
b66e0e86 | 1763 | /* Do we expect a request-body? */ |
39cb8c41 AR |
1764 | expectBody = chunked || request->content_length > 0; |
1765 | if (!context->mayUseConnection() && expectBody) { | |
1766 | request->body_pipe = conn->expectRequestBody( | |
de48b288 | 1767 | chunked ? -1 : request->content_length); |
5f8252d2 | 1768 | |
62e76326 | 1769 | /* Is it too large? */ |
39cb8c41 | 1770 | if (!chunked && // if chunked, we will check as we accumulate |
de48b288 | 1771 | clientIsRequestBodyTooLargeForPolicy(request->content_length)) { |
62e76326 | 1772 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 1773 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
1774 | assert (repContext); | |
b248c2a3 | 1775 | conn->quitAfterError(request.getRaw()); |
0655fa4d | 1776 | repContext->setReplyToError(ERR_TOO_BIG, |
f11c8e2f | 1777 | Http::scPayloadTooLarge, Http::METHOD_NONE, NULL, |
73c36fd9 | 1778 | conn->clientConnection->remote, http->request, NULL, NULL); |
62e76326 | 1779 | assert(context->http->out.offset == 0); |
1780 | context->pullData(); | |
28fd6d0b AJ |
1781 | clientProcessRequestFinished(conn, request); |
1782 | return; | |
62e76326 | 1783 | } |
1784 | ||
92ae4c86 | 1785 | if (!isFtp) { |
a5d444a5 DK |
1786 | // We may stop producing, comm_close, and/or call setReplyToError() |
1787 | // below, so quit on errors to avoid http->doCallouts() | |
28fd6d0b AJ |
1788 | if (!conn->handleRequestBodyData()) { |
1789 | clientProcessRequestFinished(conn, request); | |
1790 | return; | |
1791 | } | |
39cb8c41 | 1792 | |
a5d444a5 | 1793 | if (!request->body_pipe->productionEnded()) { |
e7ce227f | 1794 | debugs(33, 5, "need more request body"); |
a5d444a5 DK |
1795 | context->mayUseConnection(true); |
1796 | assert(conn->flags.readMore); | |
1797 | } | |
f35961af | 1798 | } |
c4b7a5a9 | 1799 | } |
1800 | ||
de31d06f | 1801 | http->calloutContext = new ClientRequestContext(http); |
1802 | ||
1803 | http->doCallouts(); | |
9e008dda | 1804 | |
28fd6d0b | 1805 | clientProcessRequestFinished(conn, request); |
c4b7a5a9 | 1806 | } |
1807 | ||
92ae4c86 AR |
1808 | int |
1809 | ConnStateData::pipelinePrefetchMax() const | |
1810 | { | |
efbea402 CT |
1811 | // TODO: Support pipelined requests through pinned connections. |
1812 | if (pinning.pinned) | |
1813 | return 0; | |
92ae4c86 AR |
1814 | return Config.pipeline_max_prefetch; |
1815 | } | |
1816 | ||
079a8480 AJ |
1817 | /** |
1818 | * Limit the number of concurrent requests. | |
1819 | * \return true when there are available position(s) in the pipeline queue for another request. | |
1820 | * \return false when the pipeline queue is full or disabled. | |
1821 | */ | |
1822 | bool | |
1823 | ConnStateData::concurrentRequestQueueFilled() const | |
c4b7a5a9 | 1824 | { |
e500cc89 | 1825 | const int existingRequestCount = pipeline.count(); |
079a8480 AJ |
1826 | |
1827 | // default to the configured pipeline size. | |
1828 | // add 1 because the head of pipeline is counted in concurrent requests and not prefetch queue | |
0de57497 | 1829 | #if USE_OPENSSL |
43b43c46 | 1830 | const int internalRequest = (transparent() && sslBumpMode == Ssl::bumpSplice) ? 1 : 0; |
0de57497 | 1831 | #else |
06211564 | 1832 | const int internalRequest = 0; |
0de57497 | 1833 | #endif |
43b43c46 | 1834 | const int concurrentRequestLimit = pipelinePrefetchMax() + 1 + internalRequest; |
62e76326 | 1835 | |
079a8480 AJ |
1836 | // when queue filled already we cant add more. |
1837 | if (existingRequestCount >= concurrentRequestLimit) { | |
1838 | debugs(33, 3, clientConnection << " max concurrent requests reached (" << concurrentRequestLimit << ")"); | |
1839 | debugs(33, 5, clientConnection << " deferring new request until one is done"); | |
1840 | return true; | |
c4b7a5a9 | 1841 | } |
62e76326 | 1842 | |
079a8480 | 1843 | return false; |
c4b7a5a9 | 1844 | } |
1845 | ||
00d0ce87 | 1846 | /** |
d3d92daa | 1847 | * Perform proxy_protocol_access ACL tests on the client which |
3bd97e7e AJ |
1848 | * connected to PROXY protocol port to see if we trust the |
1849 | * sender enough to accept their PROXY header claim. | |
00d0ce87 | 1850 | */ |
6658cc16 | 1851 | bool |
00d0ce87 AJ |
1852 | ConnStateData::proxyProtocolValidateClient() |
1853 | { | |
d3d92daa AJ |
1854 | if (!Config.accessList.proxyProtocol) |
1855 | return proxyProtocolError("PROXY client not permitted by default ACL"); | |
1856 | ||
1857 | ACLFilledChecklist ch(Config.accessList.proxyProtocol, NULL, clientConnection->rfc931); | |
00d0ce87 AJ |
1858 | ch.src_addr = clientConnection->remote; |
1859 | ch.my_addr = clientConnection->local; | |
6658cc16 | 1860 | ch.conn(this); |
00d0ce87 | 1861 | |
3bd97e7e AJ |
1862 | if (ch.fastCheck() != ACCESS_ALLOWED) |
1863 | return proxyProtocolError("PROXY client not permitted by ACLs"); | |
1864 | ||
6658cc16 | 1865 | return true; |
00d0ce87 AJ |
1866 | } |
1867 | ||
1868 | /** | |
1869 | * Perform cleanup on PROXY protocol errors. | |
1870 | * If header parsing hits a fatal error terminate the connection, | |
1871 | * otherwise wait for more data. | |
1872 | */ | |
1873 | bool | |
3bd97e7e | 1874 | ConnStateData::proxyProtocolError(const char *msg) |
00d0ce87 | 1875 | { |
3c082dbe | 1876 | if (msg) { |
70a16fea AJ |
1877 | // This is important to know, but maybe not so much that flooding the log is okay. |
1878 | #if QUIET_PROXY_PROTOCOL | |
1879 | // display the first of every 32 occurances at level 1, the others at level 2. | |
1880 | static uint8_t hide = 0; | |
1881 | debugs(33, (hide++ % 32 == 0 ? DBG_IMPORTANT : 2), msg << " from " << clientConnection); | |
1882 | #else | |
1883 | debugs(33, DBG_IMPORTANT, msg << " from " << clientConnection); | |
1884 | #endif | |
3bd97e7e | 1885 | mustStop(msg); |
3c082dbe | 1886 | } |
00d0ce87 AJ |
1887 | return false; |
1888 | } | |
1889 | ||
3bd97e7e | 1890 | /// magic octet prefix for PROXY protocol version 1 |
70a16fea | 1891 | static const SBuf Proxy1p0magic("PROXY ", 6); |
3bd97e7e AJ |
1892 | |
1893 | /// magic octet prefix for PROXY protocol version 2 | |
70a16fea | 1894 | static const SBuf Proxy2p0magic("\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A", 12); |
3bd97e7e | 1895 | |
00d0ce87 | 1896 | /** |
3bd97e7e AJ |
1897 | * Test the connection read buffer for PROXY protocol header. |
1898 | * Version 1 and 2 header currently supported. | |
00d0ce87 AJ |
1899 | */ |
1900 | bool | |
3d74cb1f | 1901 | ConnStateData::parseProxyProtocolHeader() |
00d0ce87 | 1902 | { |
00d0ce87 | 1903 | // http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt |
cbae7ab9 | 1904 | |
70a16fea | 1905 | // detect and parse PROXY/2.0 protocol header |
fcc444e3 | 1906 | if (inBuf.startsWith(Proxy2p0magic)) |
70a16fea | 1907 | return parseProxy2p0(); |
00d0ce87 | 1908 | |
70a16fea | 1909 | // detect and parse PROXY/1.0 protocol header |
fcc444e3 | 1910 | if (inBuf.startsWith(Proxy1p0magic)) |
bd1be2ae | 1911 | return parseProxy1p0(); |
00d0ce87 | 1912 | |
70a16fea | 1913 | // detect and terminate other protocols |
fcc444e3 | 1914 | if (inBuf.length() >= Proxy2p0magic.length()) { |
70a16fea AJ |
1915 | // PROXY/1.0 magic is shorter, so we know that |
1916 | // the input does not start with any PROXY magic | |
3bd97e7e AJ |
1917 | return proxyProtocolError("PROXY protocol error: invalid header"); |
1918 | } | |
00d0ce87 | 1919 | |
3d74cb1f AJ |
1920 | // TODO: detect short non-magic prefixes earlier to avoid |
1921 | // waiting for more data which may never come | |
1922 | ||
3bd97e7e AJ |
1923 | // not enough bytes to parse yet. |
1924 | return false; | |
1925 | } | |
00d0ce87 | 1926 | |
3bd97e7e AJ |
1927 | /// parse the PROXY/1.0 protocol header from the connection read buffer |
1928 | bool | |
70a16fea | 1929 | ConnStateData::parseProxy1p0() |
3bd97e7e | 1930 | { |
fcc444e3 | 1931 | ::Parser::Tokenizer tok(inBuf); |
70a16fea | 1932 | tok.skip(Proxy1p0magic); |
3bd97e7e | 1933 | |
154ea566 AJ |
1934 | // skip to first LF (assumes it is part of CRLF) |
1935 | static const CharacterSet lineContent = CharacterSet::LF.complement("non-LF"); | |
1936 | SBuf line; | |
1937 | if (tok.prefix(line, lineContent, 107-Proxy1p0magic.length())) { | |
1938 | if (tok.skip('\n')) { | |
1939 | // found valid header | |
fcc444e3 | 1940 | inBuf = tok.remaining(); |
154ea566 AJ |
1941 | needProxyProtocolHeader_ = false; |
1942 | // reset the tokenizer to work on found line only. | |
1943 | tok.reset(line); | |
1944 | } else | |
1945 | return false; // no LF yet | |
1946 | ||
1947 | } else // protocol error only if there are more than 107 bytes prefix header | |
fcc444e3 | 1948 | return proxyProtocolError(inBuf.length() > 107? "PROXY/1.0 error: missing CRLF" : NULL); |
154ea566 | 1949 | |
1689cdbc AJ |
1950 | static const SBuf unknown("UNKNOWN"), tcpName("TCP"); |
1951 | if (tok.skip(tcpName)) { | |
3bd97e7e | 1952 | |
1689cdbc AJ |
1953 | // skip TCP/IP version number |
1954 | static const CharacterSet tcpVersions("TCP-version","46"); | |
bd1be2ae | 1955 | if (!tok.skipOne(tcpVersions)) |
154ea566 | 1956 | return proxyProtocolError("PROXY/1.0 error: missing TCP version"); |
00d0ce87 | 1957 | |
3bd97e7e AJ |
1958 | // skip SP after protocol version |
1959 | if (!tok.skip(' ')) | |
154ea566 | 1960 | return proxyProtocolError("PROXY/1.0 error: missing SP"); |
00d0ce87 | 1961 | |
3bd97e7e AJ |
1962 | SBuf ipa, ipb; |
1963 | int64_t porta, portb; | |
1689cdbc AJ |
1964 | static const CharacterSet ipChars = CharacterSet("IP Address",".:") + CharacterSet::HEXDIG; |
1965 | ||
1966 | // parse: src-IP SP dst-IP SP src-port SP dst-port CR | |
1967 | // leave the LF until later. | |
1968 | const bool correct = tok.prefix(ipa, ipChars) && tok.skip(' ') && | |
1969 | tok.prefix(ipb, ipChars) && tok.skip(' ') && | |
1970 | tok.int64(porta) && tok.skip(' ') && | |
1971 | tok.int64(portb) && | |
1972 | tok.skip('\r'); | |
1973 | if (!correct) | |
154ea566 | 1974 | return proxyProtocolError("PROXY/1.0 error: invalid syntax"); |
00d0ce87 | 1975 | |
3bd97e7e AJ |
1976 | // parse IP and port strings |
1977 | Ip::Address originalClient, originalDest; | |
00d0ce87 | 1978 | |
3bd97e7e AJ |
1979 | if (!originalClient.GetHostByName(ipa.c_str())) |
1980 | return proxyProtocolError("PROXY/1.0 error: invalid src-IP address"); | |
00d0ce87 | 1981 | |
3bd97e7e AJ |
1982 | if (!originalDest.GetHostByName(ipb.c_str())) |
1983 | return proxyProtocolError("PROXY/1.0 error: invalid dst-IP address"); | |
00d0ce87 | 1984 | |
3bd97e7e AJ |
1985 | if (porta > 0 && porta <= 0xFFFF) // max uint16_t |
1986 | originalClient.port(static_cast<uint16_t>(porta)); | |
1987 | else | |
1988 | return proxyProtocolError("PROXY/1.0 error: invalid src port"); | |
cbae7ab9 | 1989 | |
3bd97e7e AJ |
1990 | if (portb > 0 && portb <= 0xFFFF) // max uint16_t |
1991 | originalDest.port(static_cast<uint16_t>(portb)); | |
1992 | else | |
1993 | return proxyProtocolError("PROXY/1.0 error: invalid dst port"); | |
cbae7ab9 | 1994 | |
3bd97e7e AJ |
1995 | // we have original client and destination details now |
1996 | // replace the client connection values | |
1997 | debugs(33, 5, "PROXY/1.0 protocol on connection " << clientConnection); | |
1998 | clientConnection->local = originalDest; | |
1999 | clientConnection->remote = originalClient; | |
65984b09 YW |
2000 | if ((clientConnection->flags & COMM_TRANSPARENT)) |
2001 | clientConnection->flags ^= COMM_TRANSPARENT; // prevent TPROXY spoofing of this new IP. | |
3bd97e7e | 2002 | debugs(33, 5, "PROXY/1.0 upgrade: " << clientConnection); |
cbae7ab9 | 2003 | |
3bd97e7e AJ |
2004 | // repeat fetch ensuring the new client FQDN can be logged |
2005 | if (Config.onoff.log_fqdn) | |
2006 | fqdncache_gethostbyaddr(clientConnection->remote, FQDN_LOOKUP_IF_MISS); | |
cbae7ab9 | 2007 | |
3bd97e7e | 2008 | return true; |
1689cdbc AJ |
2009 | |
2010 | } else if (tok.skip(unknown)) { | |
154ea566 AJ |
2011 | // found valid but unusable header |
2012 | return true; | |
1689cdbc AJ |
2013 | |
2014 | } else | |
154ea566 | 2015 | return proxyProtocolError("PROXY/1.0 error: invalid protocol family"); |
cbae7ab9 | 2016 | |
3bd97e7e AJ |
2017 | return false; |
2018 | } | |
cbae7ab9 | 2019 | |
3bd97e7e AJ |
2020 | /// parse the PROXY/2.0 protocol header from the connection read buffer |
2021 | bool | |
70a16fea | 2022 | ConnStateData::parseProxy2p0() |
3bd97e7e | 2023 | { |
1689cdbc | 2024 | static const SBuf::size_type prefixLen = Proxy2p0magic.length(); |
fcc444e3 | 2025 | if (inBuf.length() < prefixLen + 4) |
1689cdbc AJ |
2026 | return false; // need more bytes |
2027 | ||
fcc444e3 | 2028 | if ((inBuf[prefixLen] & 0xF0) != 0x20) // version == 2 is mandatory |
3bd97e7e | 2029 | return proxyProtocolError("PROXY/2.0 error: invalid version"); |
cbae7ab9 | 2030 | |
fcc444e3 | 2031 | const char command = (inBuf[prefixLen] & 0x0F); |
3bd97e7e AJ |
2032 | if ((command & 0xFE) != 0x00) // values other than 0x0-0x1 are invalid |
2033 | return proxyProtocolError("PROXY/2.0 error: invalid command"); | |
cbae7ab9 | 2034 | |
fcc444e3 | 2035 | const char family = (inBuf[prefixLen+1] & 0xF0) >>4; |
3bd97e7e AJ |
2036 | if (family > 0x3) // values other than 0x0-0x3 are invalid |
2037 | return proxyProtocolError("PROXY/2.0 error: invalid family"); | |
cbae7ab9 | 2038 | |
fcc444e3 | 2039 | const char proto = (inBuf[prefixLen+1] & 0x0F); |
3bd97e7e AJ |
2040 | if (proto > 0x2) // values other than 0x0-0x2 are invalid |
2041 | return proxyProtocolError("PROXY/2.0 error: invalid protocol type"); | |
cbae7ab9 | 2042 | |
fcc444e3 | 2043 | const char *clen = inBuf.rawContent() + prefixLen + 2; |
17954dbd AJ |
2044 | uint16_t len; |
2045 | memcpy(&len, clen, sizeof(len)); | |
2046 | len = ntohs(len); | |
cbae7ab9 | 2047 | |
fcc444e3 | 2048 | if (inBuf.length() < prefixLen + 4 + len) |
3bd97e7e | 2049 | return false; // need more bytes |
cbae7ab9 | 2050 | |
fcc444e3 AJ |
2051 | inBuf.consume(prefixLen + 4); // 4 being the extra bytes |
2052 | const SBuf extra = inBuf.consume(len); | |
3bd97e7e | 2053 | needProxyProtocolHeader_ = false; // found successfully |
cbae7ab9 | 2054 | |
3bd97e7e AJ |
2055 | // LOCAL connections do nothing with the extras |
2056 | if (command == 0x00/* LOCAL*/) | |
cbae7ab9 AJ |
2057 | return true; |
2058 | ||
1689cdbc | 2059 | union pax { |
3bd97e7e AJ |
2060 | struct { /* for TCP/UDP over IPv4, len = 12 */ |
2061 | struct in_addr src_addr; | |
2062 | struct in_addr dst_addr; | |
2063 | uint16_t src_port; | |
2064 | uint16_t dst_port; | |
2065 | } ipv4_addr; | |
2066 | struct { /* for TCP/UDP over IPv6, len = 36 */ | |
bd1be2ae A |
2067 | struct in6_addr src_addr; |
2068 | struct in6_addr dst_addr; | |
2069 | uint16_t src_port; | |
2070 | uint16_t dst_port; | |
3bd97e7e AJ |
2071 | } ipv6_addr; |
2072 | #if NOT_SUPPORTED | |
2073 | struct { /* for AF_UNIX sockets, len = 216 */ | |
bd1be2ae A |
2074 | uint8_t src_addr[108]; |
2075 | uint8_t dst_addr[108]; | |
3bd97e7e AJ |
2076 | } unix_addr; |
2077 | #endif | |
1689cdbc | 2078 | }; |
3bd97e7e | 2079 | |
17954dbd AJ |
2080 | pax ipu; |
2081 | memcpy(&ipu, extra.rawContent(), sizeof(pax)); | |
3bd97e7e AJ |
2082 | |
2083 | // replace the client connection values | |
2084 | debugs(33, 5, "PROXY/2.0 protocol on connection " << clientConnection); | |
bd1be2ae | 2085 | switch (family) { |
3bd97e7e | 2086 | case 0x1: // IPv4 |
17954dbd AJ |
2087 | clientConnection->local = ipu.ipv4_addr.dst_addr; |
2088 | clientConnection->local.port(ntohs(ipu.ipv4_addr.dst_port)); | |
2089 | clientConnection->remote = ipu.ipv4_addr.src_addr; | |
2090 | clientConnection->remote.port(ntohs(ipu.ipv4_addr.src_port)); | |
65984b09 YW |
2091 | if ((clientConnection->flags & COMM_TRANSPARENT)) |
2092 | clientConnection->flags ^= COMM_TRANSPARENT; // prevent TPROXY spoofing of this new IP. | |
3bd97e7e AJ |
2093 | break; |
2094 | case 0x2: // IPv6 | |
17954dbd AJ |
2095 | clientConnection->local = ipu.ipv6_addr.dst_addr; |
2096 | clientConnection->local.port(ntohs(ipu.ipv6_addr.dst_port)); | |
2097 | clientConnection->remote = ipu.ipv6_addr.src_addr; | |
2098 | clientConnection->remote.port(ntohs(ipu.ipv6_addr.src_port)); | |
65984b09 YW |
2099 | if ((clientConnection->flags & COMM_TRANSPARENT)) |
2100 | clientConnection->flags ^= COMM_TRANSPARENT; // prevent TPROXY spoofing of this new IP. | |
3bd97e7e AJ |
2101 | break; |
2102 | default: // do nothing | |
2103 | break; | |
00d0ce87 | 2104 | } |
3bd97e7e | 2105 | debugs(33, 5, "PROXY/2.0 upgrade: " << clientConnection); |
00d0ce87 | 2106 | |
3bd97e7e AJ |
2107 | // repeat fetch ensuring the new client FQDN can be logged |
2108 | if (Config.onoff.log_fqdn) | |
2109 | fqdncache_gethostbyaddr(clientConnection->remote, FQDN_LOOKUP_IF_MISS); | |
2110 | ||
2111 | return true; | |
00d0ce87 AJ |
2112 | } |
2113 | ||
3248e962 CT |
2114 | void |
2115 | ConnStateData::receivedFirstByte() | |
2116 | { | |
2117 | if (receivedFirstByte_) | |
2118 | return; | |
2119 | ||
2120 | receivedFirstByte_ = true; | |
2121 | // Set timeout to Config.Timeout.request | |
2122 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; | |
2123 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, | |
2124 | TimeoutDialer, this, ConnStateData::requestTimeout); | |
2125 | commSetConnTimeout(clientConnection, Config.Timeout.request, timeoutCall); | |
2126 | } | |
2127 | ||
63be0a78 | 2128 | /** |
f900210a | 2129 | * Attempt to parse one or more requests from the input buffer. |
eacfca83 AR |
2130 | * Returns true after completing parsing of at least one request [header]. That |
2131 | * includes cases where parsing ended with an error (e.g., a huge request). | |
f900210a | 2132 | */ |
4959e21e | 2133 | bool |
f35961af | 2134 | ConnStateData::clientParseRequests() |
f900210a | 2135 | { |
f900210a | 2136 | bool parsed_req = false; |
2137 | ||
1b76e6c1 | 2138 | debugs(33, 5, HERE << clientConnection << ": attempting to parse"); |
f900210a | 2139 | |
39cb8c41 | 2140 | // Loop while we have read bytes that are not needed for producing the body |
f35961af | 2141 | // On errors, bodyPipe may become nil, but readMore will be cleared |
fcc444e3 | 2142 | while (!inBuf.isEmpty() && !bodyPipe && flags.readMore) { |
f900210a | 2143 | |
fc68f6b1 | 2144 | /* Don't try to parse if the buffer is empty */ |
fcc444e3 | 2145 | if (inBuf.isEmpty()) |
fc68f6b1 | 2146 | break; |
4681057e | 2147 | |
079a8480 AJ |
2148 | /* Limit the number of concurrent requests */ |
2149 | if (concurrentRequestQueueFilled()) | |
f900210a | 2150 | break; |
f900210a | 2151 | |
00d0ce87 | 2152 | // try to parse the PROXY protocol header magic bytes |
3d74cb1f | 2153 | if (needProxyProtocolHeader_ && !parseProxyProtocolHeader()) |
00d0ce87 AJ |
2154 | break; |
2155 | ||
d3dddfb5 | 2156 | if (Http::Stream *context = parseOneRequest()) { |
eacfca83 | 2157 | debugs(33, 5, clientConnection << ": done parsing a request"); |
f900210a | 2158 | |
8d77a37c | 2159 | AsyncCall::Pointer timeoutCall = commCbCall(5, 4, "clientLifetimeTimeout", |
dc49061a | 2160 | CommTimeoutCbPtrFun(clientLifetimeTimeout, context->http)); |
1b76e6c1 | 2161 | commSetConnTimeout(clientConnection, Config.Timeout.lifetime, timeoutCall); |
f900210a | 2162 | |
eacfca83 AR |
2163 | context->registerWithConn(); |
2164 | ||
9bafa70d | 2165 | processParsedRequest(context); |
f900210a | 2166 | |
4959e21e | 2167 | parsed_req = true; // XXX: do we really need to parse everything right NOW ? |
f900210a | 2168 | |
2169 | if (context->mayUseConnection()) { | |
f35961af | 2170 | debugs(33, 3, HERE << "Not parsing new requests, as this request may need the connection"); |
f900210a | 2171 | break; |
2172 | } | |
eacfca83 AR |
2173 | } else { |
2174 | debugs(33, 5, clientConnection << ": not enough request data: " << | |
fcc444e3 AJ |
2175 | inBuf.length() << " < " << Config.maxRequestHeaderSize); |
2176 | Must(inBuf.length() < Config.maxRequestHeaderSize); | |
eacfca83 | 2177 | break; |
f900210a | 2178 | } |
39cb8c41 | 2179 | } |
fc68f6b1 | 2180 | |
a5baffba | 2181 | /* XXX where to 'finish' the parsing pass? */ |
f900210a | 2182 | return parsed_req; |
2183 | } | |
2184 | ||
1cf238db | 2185 | void |
fcc444e3 | 2186 | ConnStateData::afterClientRead() |
c4b7a5a9 | 2187 | { |
94439e4e | 2188 | /* Process next request */ |
e500cc89 | 2189 | if (pipeline.empty()) |
fcc444e3 | 2190 | fd_note(clientConnection->fd, "Reading next request"); |
c8be6d7b | 2191 | |
f35961af | 2192 | if (!clientParseRequests()) { |
9e008dda AJ |
2193 | if (!isOpen()) |
2194 | return; | |
f900210a | 2195 | /* |
2196 | * If the client here is half closed and we failed | |
2197 | * to parse a request, close the connection. | |
2198 | * The above check with connFinishedWithConn() only | |
2199 | * succeeds _if_ the buffer is empty which it won't | |
2200 | * be if we have an incomplete request. | |
f4a53cf7 | 2201 | * XXX: This duplicates ConnStateData::kick |
f900210a | 2202 | */ |
e500cc89 | 2203 | if (pipeline.empty() && commIsHalfClosed(clientConnection->fd)) { |
fcc444e3 | 2204 | debugs(33, 5, clientConnection << ": half-closed connection, no completed request parsed, connection closing."); |
73c36fd9 | 2205 | clientConnection->close(); |
ee6f0213 | 2206 | return; |
62e76326 | 2207 | } |
f900210a | 2208 | } |
ee6f0213 | 2209 | |
1cf238db | 2210 | if (!isOpen()) |
2e216b1d | 2211 | return; |
2212 | ||
f35961af | 2213 | clientAfterReadingRequests(); |
94439e4e | 2214 | } |
2215 | ||
63be0a78 | 2216 | /** |
2217 | * called when new request data has been read from the socket | |
39cb8c41 AR |
2218 | * |
2219 | * \retval false called comm_close or setReplyToError (the caller should bail) | |
2220 | * \retval true we did not call comm_close or setReplyToError | |
63be0a78 | 2221 | */ |
39cb8c41 | 2222 | bool |
7e66d5e2 | 2223 | ConnStateData::handleReadData() |
94439e4e | 2224 | { |
5f8252d2 | 2225 | // if we are reading a body, stuff data into the body pipe |
2226 | if (bodyPipe != NULL) | |
39cb8c41 AR |
2227 | return handleRequestBodyData(); |
2228 | return true; | |
94439e4e | 2229 | } |
2230 | ||
63be0a78 | 2231 | /** |
fcc444e3 | 2232 | * called when new request body data has been buffered in inBuf |
63be0a78 | 2233 | * may close the connection if we were closing and piped everything out |
39cb8c41 AR |
2234 | * |
2235 | * \retval false called comm_close or setReplyToError (the caller should bail) | |
2236 | * \retval true we did not call comm_close or setReplyToError | |
63be0a78 | 2237 | */ |
39cb8c41 | 2238 | bool |
5f8252d2 | 2239 | ConnStateData::handleRequestBodyData() |
94439e4e | 2240 | { |
5f8252d2 | 2241 | assert(bodyPipe != NULL); |
2242 | ||
fcc444e3 | 2243 | if (bodyParser) { // chunked encoding |
be29ee33 | 2244 | if (const err_type error = handleChunkedRequestBody()) { |
39cb8c41 AR |
2245 | abortChunkedRequestBody(error); |
2246 | return false; | |
3ff65596 | 2247 | } |
39cb8c41 | 2248 | } else { // identity encoding |
73c36fd9 | 2249 | debugs(33,5, HERE << "handling plain request body for " << clientConnection); |
fcc444e3 | 2250 | const size_t putSize = bodyPipe->putMoreData(inBuf.c_str(), inBuf.length()); |
be29ee33 AJ |
2251 | if (putSize > 0) |
2252 | consumeInput(putSize); | |
2253 | ||
3ff65596 AR |
2254 | if (!bodyPipe->mayNeedMoreData()) { |
2255 | // BodyPipe will clear us automagically when we produced everything | |
2256 | bodyPipe = NULL; | |
2257 | } | |
2258 | } | |
2259 | ||
3ff65596 | 2260 | if (!bodyPipe) { |
73c36fd9 | 2261 | debugs(33,5, HERE << "produced entire request body for " << clientConnection); |
62e76326 | 2262 | |
cf6eb29e | 2263 | if (const char *reason = stoppedSending()) { |
5f8252d2 | 2264 | /* we've finished reading like good clients, |
2265 | * now do the close that initiateClose initiated. | |
5f8252d2 | 2266 | */ |
cf6eb29e | 2267 | debugs(33, 3, HERE << "closing for earlier sending error: " << reason); |
73c36fd9 | 2268 | clientConnection->close(); |
39cb8c41 AR |
2269 | return false; |
2270 | } | |
2271 | } | |
2272 | ||
2273 | return true; | |
2274 | } | |
2275 | ||
2276 | /// parses available chunked encoded body bytes, checks size, returns errors | |
2277 | err_type | |
be29ee33 | 2278 | ConnStateData::handleChunkedRequestBody() |
39cb8c41 | 2279 | { |
fcc444e3 | 2280 | debugs(33, 7, "chunked from " << clientConnection << ": " << inBuf.length()); |
39cb8c41 AR |
2281 | |
2282 | try { // the parser will throw on errors | |
2283 | ||
fcc444e3 | 2284 | if (inBuf.isEmpty()) // nothing to do |
39cb8c41 AR |
2285 | return ERR_NONE; |
2286 | ||
39cb8c41 | 2287 | BodyPipeCheckout bpc(*bodyPipe); |
fcc444e3 AJ |
2288 | bodyParser->setPayloadBuffer(&bpc.buf); |
2289 | const bool parsed = bodyParser->parse(inBuf); | |
2290 | inBuf = bodyParser->remaining(); // sync buffers | |
39cb8c41 | 2291 | bpc.checkIn(); |
39cb8c41 AR |
2292 | |
2293 | // dechunk then check: the size limit applies to _dechunked_ content | |
2294 | if (clientIsRequestBodyTooLargeForPolicy(bodyPipe->producedSize())) | |
2295 | return ERR_TOO_BIG; | |
2296 | ||
2297 | if (parsed) { | |
2298 | finishDechunkingRequest(true); | |
2299 | Must(!bodyPipe); | |
2300 | return ERR_NONE; // nil bodyPipe implies body end for the caller | |
5f8252d2 | 2301 | } |
39cb8c41 AR |
2302 | |
2303 | // if chunk parser needs data, then the body pipe must need it too | |
fcc444e3 | 2304 | Must(!bodyParser->needsMoreData() || bodyPipe->mayNeedMoreData()); |
39cb8c41 AR |
2305 | |
2306 | // if parser needs more space and we can consume nothing, we will stall | |
fcc444e3 | 2307 | Must(!bodyParser->needsMoreSpace() || bodyPipe->buf().hasContent()); |
39cb8c41 AR |
2308 | } catch (...) { // TODO: be more specific |
2309 | debugs(33, 3, HERE << "malformed chunks" << bodyPipe->status()); | |
2310 | return ERR_INVALID_REQ; | |
94439e4e | 2311 | } |
39cb8c41 AR |
2312 | |
2313 | debugs(33, 7, HERE << "need more chunked data" << *bodyPipe->status()); | |
2314 | return ERR_NONE; | |
2315 | } | |
2316 | ||
2317 | /// quit on errors related to chunked request body handling | |
2318 | void | |
2319 | ConnStateData::abortChunkedRequestBody(const err_type error) | |
2320 | { | |
2321 | finishDechunkingRequest(false); | |
2322 | ||
2323 | // XXX: The code below works if we fail during initial request parsing, | |
d5430dc8 | 2324 | // but if we fail when the server connection is used already, the server may send |
39cb8c41 AR |
2325 | // us its response too, causing various assertions. How to prevent that? |
2326 | #if WE_KNOW_HOW_TO_SEND_ERRORS | |
d3dddfb5 | 2327 | Http::StreamPointer context = pipeline.front(); |
39cb8c41 AR |
2328 | if (context != NULL && !context->http->out.offset) { // output nothing yet |
2329 | clientStreamNode *node = context->getClientReplyContext(); | |
2330 | clientReplyContext *repContext = dynamic_cast<clientReplyContext*>(node->data.getRaw()); | |
2331 | assert(repContext); | |
955394ce | 2332 | const Http::StatusCode scode = (error == ERR_TOO_BIG) ? |
f11c8e2f | 2333 | Http::scPayloadTooLarge : HTTP_BAD_REQUEST; |
39cb8c41 AR |
2334 | repContext->setReplyToError(error, scode, |
2335 | repContext->http->request->method, | |
2336 | repContext->http->uri, | |
a3c6762c | 2337 | CachePeer, |
39cb8c41 | 2338 | repContext->http->request, |
fcc444e3 | 2339 | inBuf, NULL); |
39cb8c41 AR |
2340 | context->pullData(); |
2341 | } else { | |
2342 | // close or otherwise we may get stuck as nobody will notice the error? | |
73c36fd9 | 2343 | comm_reset_close(clientConnection); |
39cb8c41 AR |
2344 | } |
2345 | #else | |
2346 | debugs(33, 3, HERE << "aborting chunked request without error " << error); | |
73c36fd9 | 2347 | comm_reset_close(clientConnection); |
39cb8c41 | 2348 | #endif |
f35961af | 2349 | flags.readMore = false; |
5f8252d2 | 2350 | } |
55e44db9 | 2351 | |
5f8252d2 | 2352 | void |
1cf238db | 2353 | ConnStateData::noteBodyConsumerAborted(BodyPipe::Pointer ) |
5f8252d2 | 2354 | { |
cf6eb29e CT |
2355 | // request reader may get stuck waiting for space if nobody consumes body |
2356 | if (bodyPipe != NULL) | |
2357 | bodyPipe->enableAutoConsumption(); | |
2358 | ||
92ae4c86 | 2359 | // kids extend |
94439e4e | 2360 | } |
2361 | ||
63be0a78 | 2362 | /** general lifetime handler for HTTP requests */ |
1cf238db | 2363 | void |
2364 | ConnStateData::requestTimeout(const CommTimeoutCbParams &io) | |
7a2f978b | 2365 | { |
d5b97346 AJ |
2366 | if (!Comm::IsConnOpen(io.conn)) |
2367 | return; | |
2368 | ||
3248e962 CT |
2369 | if (Config.accessList.on_unsupported_protocol && !receivedFirstByte_) { |
2370 | #if USE_OPENSSL | |
2371 | if (serverBump() && (serverBump()->act.step1 == Ssl::bumpPeek || serverBump()->act.step1 == Ssl::bumpStare)) { | |
2372 | if (spliceOnError(ERR_REQUEST_START_TIMEOUT)) { | |
2373 | receivedFirstByte(); | |
2374 | return; | |
2375 | } | |
33cc0629 | 2376 | } else if (!fd_table[io.conn->fd].ssl) |
3248e962 CT |
2377 | #endif |
2378 | { | |
2379 | const HttpRequestMethod method; | |
2380 | if (clientTunnelOnError(this, NULL, NULL, method, ERR_REQUEST_START_TIMEOUT, Http::scNone, NULL)) { | |
2381 | // Tunnel established. Set receivedFirstByte to avoid loop. | |
2382 | receivedFirstByte(); | |
2383 | return; | |
2384 | } | |
2385 | } | |
2386 | } | |
af57a2e3 | 2387 | /* |
62e76326 | 2388 | * Just close the connection to not confuse browsers |
6177a89f HN |
2389 | * using persistent connections. Some browsers open |
2390 | * a connection and then do not use it until much | |
62e76326 | 2391 | * later (presumeably because the request triggering |
2392 | * the open has already been completed on another | |
2393 | * connection) | |
2394 | */ | |
1cf238db | 2395 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
8d77a37c | 2396 | io.conn->close(); |
7a2f978b | 2397 | } |
2398 | ||
b5c39993 | 2399 | static void |
8d77a37c | 2400 | clientLifetimeTimeout(const CommTimeoutCbParams &io) |
b5c39993 | 2401 | { |
8d77a37c | 2402 | ClientHttpRequest *http = static_cast<ClientHttpRequest *>(io.data); |
cb61ec47 AJ |
2403 | debugs(33, DBG_IMPORTANT, "WARNING: Closing client connection due to lifetime timeout"); |
2404 | debugs(33, DBG_IMPORTANT, "\t" << http->uri); | |
a981b360 | 2405 | http->logType.err.timedout = true; |
8d77a37c AJ |
2406 | if (Comm::IsConnOpen(io.conn)) |
2407 | io.conn->close(); | |
b5c39993 | 2408 | } |
2409 | ||
94bfd31f | 2410 | ConnStateData::ConnStateData(const MasterXaction::Pointer &xact) : |
f53969cc | 2411 | AsyncJob("ConnStateData"), // kids overwrite |
fcc444e3 AJ |
2412 | Server(xact), |
2413 | bodyParser(nullptr), | |
cb4f4424 | 2414 | #if USE_OPENSSL |
f53969cc | 2415 | sslBumpMode(Ssl::bumpEnd), |
4579a6d0 | 2416 | #endif |
f53969cc | 2417 | needProxyProtocolHeader_(false), |
4579a6d0 | 2418 | #if USE_OPENSSL |
f53969cc SM |
2419 | switchedToHttps_(false), |
2420 | sslServerBump(NULL), | |
2421 | signAlgorithm(Ssl::algSignTrusted), | |
94bfd31f | 2422 | #endif |
f53969cc | 2423 | stoppedSending_(NULL), |
fcc444e3 | 2424 | stoppedReceiving_(NULL) |
c8be6d7b | 2425 | { |
4579a6d0 AJ |
2426 | flags.readMore = true; // kids may overwrite |
2427 | flags.swanSang = false; | |
2428 | ||
94bfd31f AJ |
2429 | pinning.host = NULL; |
2430 | pinning.port = -1; | |
2431 | pinning.pinned = false; | |
2432 | pinning.auth = false; | |
2433 | pinning.zeroReply = false; | |
2434 | pinning.peer = NULL; | |
2435 | ||
2436 | // store the details required for creating more MasterXaction objects as new requests come in | |
94bfd31f AJ |
2437 | log_addr = xact->tcpClient->remote; |
2438 | log_addr.applyMask(Config.Addrs.client_netmask); | |
d442618d AJ |
2439 | |
2440 | // register to receive notice of Squid signal events | |
2441 | // which may affect long persisting client connections | |
2442 | RegisterRunner(this); | |
92ae4c86 AR |
2443 | } |
2444 | ||
2445 | void | |
2446 | ConnStateData::start() | |
2447 | { | |
2448 | BodyProducer::start(); | |
2449 | HttpControlMsgSink::start(); | |
2450 | ||
5529ca8a | 2451 | if (port->disable_pmtu_discovery != DISABLE_PMTU_OFF && |
94bfd31f | 2452 | (transparent() || port->disable_pmtu_discovery == DISABLE_PMTU_ALWAYS)) { |
5529ca8a | 2453 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) |
2454 | int i = IP_PMTUDISC_DONT; | |
94bfd31f AJ |
2455 | if (setsockopt(clientConnection->fd, SOL_IP, IP_MTU_DISCOVER, &i, sizeof(i)) < 0) |
2456 | debugs(33, 2, "WARNING: Path MTU discovery disabling failed on " << clientConnection << " : " << xstrerror()); | |
5529ca8a | 2457 | #else |
9bb67276 | 2458 | static bool reported = false; |
5529ca8a | 2459 | |
2460 | if (!reported) { | |
9bb67276 AJ |
2461 | debugs(33, DBG_IMPORTANT, "NOTICE: Path MTU discovery disabling is not supported on your platform."); |
2462 | reported = true; | |
5529ca8a | 2463 | } |
89aec9b6 AJ |
2464 | #endif |
2465 | } | |
5529ca8a | 2466 | |
89aec9b6 | 2467 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
94bfd31f AJ |
2468 | AsyncCall::Pointer call = JobCallback(33, 5, Dialer, this, ConnStateData::connStateClosed); |
2469 | comm_add_close_handler(clientConnection->fd, call); | |
5529ca8a | 2470 | |
89aec9b6 | 2471 | if (Config.onoff.log_fqdn) |
94bfd31f | 2472 | fqdncache_gethostbyaddr(clientConnection->remote, FQDN_LOOKUP_IF_MISS); |
89aec9b6 AJ |
2473 | |
2474 | #if USE_IDENT | |
2475 | if (Ident::TheConfig.identLookup) { | |
2476 | ACLFilledChecklist identChecklist(Ident::TheConfig.identLookup, NULL, NULL); | |
92ae4c86 AR |
2477 | identChecklist.src_addr = clientConnection->remote; |
2478 | identChecklist.my_addr = clientConnection->local; | |
2efeb0b7 | 2479 | if (identChecklist.fastCheck() == ACCESS_ALLOWED) |
92ae4c86 | 2480 | Ident::Start(clientConnection, clientIdentDone, this); |
89aec9b6 | 2481 | } |
5529ca8a | 2482 | #endif |
2483 | ||
94bfd31f | 2484 | clientdbEstablished(clientConnection->remote, 1); |
5529ca8a | 2485 | |
6658cc16 AJ |
2486 | needProxyProtocolHeader_ = port->flags.proxySurrogate; |
2487 | if (needProxyProtocolHeader_) { | |
2488 | if (!proxyProtocolValidateClient()) // will close the connection on failure | |
2489 | return; | |
2490 | } | |
2491 | ||
9a0a18de | 2492 | #if USE_DELAY_POOLS |
92ae4c86 | 2493 | fd_table[clientConnection->fd].clientInfo = NULL; |
b4cd430a | 2494 | |
f33d34a8 | 2495 | if (Config.onoff.client_db) { |
b4cd430a CT |
2496 | /* it was said several times that client write limiter does not work if client_db is disabled */ |
2497 | ||
2498 | ClientDelayPools& pools(Config.ClientDelay.pools); | |
2efeb0b7 | 2499 | ACLFilledChecklist ch(NULL, NULL, NULL); |
b4cd430a | 2500 | |
2efeb0b7 AJ |
2501 | // TODO: we check early to limit error response bandwith but we |
2502 | // should recheck when we can honor delay_pool_uses_indirect | |
2503 | // TODO: we should also pass the port details for myportname here. | |
92ae4c86 AR |
2504 | ch.src_addr = clientConnection->remote; |
2505 | ch.my_addr = clientConnection->local; | |
b4cd430a | 2506 | |
95dc7ff4 | 2507 | for (unsigned int pool = 0; pool < pools.size(); ++pool) { |
b4cd430a | 2508 | |
2efeb0b7 AJ |
2509 | /* pools require explicit 'allow' to assign a client into them */ |
2510 | if (pools[pool].access) { | |
3d29e126 | 2511 | ch.changeAcl(pools[pool].access); |
2efeb0b7 AJ |
2512 | allow_t answer = ch.fastCheck(); |
2513 | if (answer == ACCESS_ALLOWED) { | |
2514 | ||
2515 | /* request client information from db after we did all checks | |
2516 | this will save hash lookup if client failed checks */ | |
92ae4c86 | 2517 | ClientInfo * cli = clientdbGetInfo(clientConnection->remote); |
2efeb0b7 AJ |
2518 | assert(cli); |
2519 | ||
2520 | /* put client info in FDE */ | |
92ae4c86 | 2521 | fd_table[clientConnection->fd].clientInfo = cli; |
2efeb0b7 AJ |
2522 | |
2523 | /* setup write limiter for this request */ | |
2524 | const double burst = floor(0.5 + | |
2525 | (pools[pool].highwatermark * Config.ClientDelay.initial)/100.0); | |
2526 | cli->setWriteLimiter(pools[pool].rate, burst, pools[pool].highwatermark); | |
2527 | break; | |
2528 | } else { | |
2529 | debugs(83, 4, HERE << "Delay pool " << pool << " skipped because ACL " << answer); | |
2530 | } | |
b4cd430a CT |
2531 | } |
2532 | } | |
2533 | } | |
2534 | #endif | |
92ae4c86 AR |
2535 | |
2536 | // kids must extend to actually start doing something (e.g., reading) | |
7a2f978b | 2537 | } |
2538 | ||
e7ce227f | 2539 | /** Handle a new connection on an HTTP socket. */ |
92ae4c86 AR |
2540 | void |
2541 | httpAccept(const CommAcceptCbParams ¶ms) | |
6afea0a4 AR |
2542 | { |
2543 | MasterXaction::Pointer xact = params.xaction; | |
2544 | AnyP::PortCfgPointer s = xact->squidPort; | |
2545 | ||
2546 | // NP: it is possible the port was reconfigured when the call or accept() was queued. | |
2547 | ||
2548 | if (params.flag != Comm::OK) { | |
2549 | // Its possible the call was still queued when the client disconnected | |
e7ce227f | 2550 | debugs(33, 2, s->listenConn << ": accept failure: " << xstrerr(params.xerrno)); |
6afea0a4 AR |
2551 | return; |
2552 | } | |
2553 | ||
e7ce227f | 2554 | debugs(33, 4, params.conn << ": accepted"); |
92ae4c86 | 2555 | fd_note(params.conn->fd, "client http connect"); |
6afea0a4 | 2556 | |
e7ce227f | 2557 | if (s->tcp_keepalive.enabled) |
6afea0a4 | 2558 | commSetTcpKeepalive(params.conn->fd, s->tcp_keepalive.idle, s->tcp_keepalive.interval, s->tcp_keepalive.timeout); |
6afea0a4 | 2559 | |
e7ce227f | 2560 | ++incoming_sockets_accepted; |
6afea0a4 AR |
2561 | |
2562 | // Socket is ready, setup the connection manager to start using it | |
92ae4c86 | 2563 | ConnStateData *connState = Http::NewServer(xact); |
e7ce227f | 2564 | AsyncJob::Start(connState); // usually async-calls readSomeData() |
7a2f978b | 2565 | } |
2566 | ||
cb4f4424 | 2567 | #if USE_OPENSSL |
1f7c9178 | 2568 | |
63be0a78 | 2569 | /** Create SSL connection structure and update fd_table */ |
33cc0629 | 2570 | static Security::SessionPtr |
96993ee0 | 2571 | httpsCreate(const Comm::ConnectionPointer &conn, Security::ContextPtr sslContext) |
ae7ff0b8 | 2572 | { |
3aac8c26 | 2573 | if (auto ssl = Ssl::CreateServer(sslContext, conn->fd, "client https start")) { |
8693472e | 2574 | debugs(33, 5, "will negotate SSL on " << conn); |
b3a8ae1b | 2575 | return ssl; |
ae7ff0b8 | 2576 | } |
2577 | ||
b3a8ae1b | 2578 | conn->close(); |
3aac8c26 | 2579 | return nullptr; |
ae7ff0b8 | 2580 | } |
2581 | ||
3248e962 | 2582 | /** |
44352c16 | 2583 | * |
3248e962 CT |
2584 | * \retval 1 on success |
2585 | * \retval 0 when needs more data | |
2586 | * \retval -1 on error | |
2587 | */ | |
2588 | static int | |
d620ae0e | 2589 | Squid_SSL_accept(ConnStateData *conn, PF *callback) |
1f7c9178 | 2590 | { |
d620ae0e | 2591 | int fd = conn->clientConnection->fd; |
33cc0629 | 2592 | auto ssl = fd_table[fd].ssl.get(); |
1f7c9178 | 2593 | int ret; |
2594 | ||
e9447f01 | 2595 | errno = 0; |
a7ad6e4e | 2596 | if ((ret = SSL_accept(ssl)) <= 0) { |
f5518dca AJ |
2597 | const int xerrno = errno; |
2598 | const int ssl_error = SSL_get_error(ssl, ret); | |
62e76326 | 2599 | |
2600 | switch (ssl_error) { | |
2601 | ||
2602 | case SSL_ERROR_WANT_READ: | |
d620ae0e | 2603 | Comm::SetSelect(fd, COMM_SELECT_READ, callback, conn, 0); |
3248e962 | 2604 | return 0; |
62e76326 | 2605 | |
2606 | case SSL_ERROR_WANT_WRITE: | |
d620ae0e | 2607 | Comm::SetSelect(fd, COMM_SELECT_WRITE, callback, conn, 0); |
3248e962 | 2608 | return 0; |
62e76326 | 2609 | |
6de9e64b | 2610 | case SSL_ERROR_SYSCALL: |
6de9e64b | 2611 | if (ret == 0) { |
d620ae0e | 2612 | debugs(83, 2, "Error negotiating SSL connection on FD " << fd << ": Aborted by client: " << ssl_error); |
6de9e64b | 2613 | } else { |
e9447f01 | 2614 | debugs(83, (xerrno == ECONNRESET) ? 1 : 2, "Error negotiating SSL connection on FD " << fd << ": " << |
13251f8d | 2615 | (xerrno == 0 ? ERR_error_string(ssl_error, NULL) : xstrerr(xerrno))); |
6de9e64b | 2616 | } |
3248e962 | 2617 | return -1; |
6de9e64b | 2618 | |
2619 | case SSL_ERROR_ZERO_RETURN: | |
d620ae0e | 2620 | debugs(83, DBG_IMPORTANT, "Error negotiating SSL connection on FD " << fd << ": Closed by client"); |
3248e962 | 2621 | return -1; |
6de9e64b | 2622 | |
62e76326 | 2623 | default: |
d620ae0e | 2624 | debugs(83, DBG_IMPORTANT, "Error negotiating SSL connection on FD " << |
9e008dda AJ |
2625 | fd << ": " << ERR_error_string(ERR_get_error(), NULL) << |
2626 | " (" << ssl_error << "/" << ret << ")"); | |
3248e962 | 2627 | return -1; |
62e76326 | 2628 | } |
2629 | ||
2630 | /* NOTREACHED */ | |
1f7c9178 | 2631 | } |
3248e962 | 2632 | return 1; |
d620ae0e CT |
2633 | } |
2634 | ||
2635 | /** negotiate an SSL connection */ | |
2636 | static void | |
2637 | clientNegotiateSSL(int fd, void *data) | |
2638 | { | |
2639 | ConnStateData *conn = (ConnStateData *)data; | |
2640 | X509 *client_cert; | |
33cc0629 | 2641 | auto ssl = fd_table[fd].ssl.get(); |
d620ae0e | 2642 | |
3248e962 CT |
2643 | int ret; |
2644 | if ((ret = Squid_SSL_accept(conn, clientNegotiateSSL)) <= 0) { | |
2645 | if (ret < 0) // An error | |
b54a7c5a | 2646 | conn->clientConnection->close(); |
d620ae0e | 2647 | return; |
3248e962 | 2648 | } |
62e76326 | 2649 | |
6de9e64b | 2650 | if (SSL_session_reused(ssl)) { |
bf8fe701 | 2651 | debugs(83, 2, "clientNegotiateSSL: Session " << SSL_get_session(ssl) << |
2652 | " reused on FD " << fd << " (" << fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << ")"); | |
6de9e64b | 2653 | } else { |
2654 | if (do_debug(83, 4)) { | |
2655 | /* Write out the SSL session details.. actually the call below, but | |
2656 | * OpenSSL headers do strange typecasts confusing GCC.. */ | |
2657 | /* PEM_write_SSL_SESSION(debug_log, SSL_get_session(ssl)); */ | |
afdd443f | 2658 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x00908000L |
9f3de01a | 2659 | PEM_ASN1_write((i2d_of_void *)i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); |
2930f303 | 2660 | |
0fd2205b | 2661 | #elif (ALLOW_ALWAYS_SSL_SESSION_DETAIL == 1) |
2930f303 | 2662 | |
0fd2205b | 2663 | /* When using gcc 3.3.x and OpenSSL 0.9.7x sometimes a compile error can occur here. |
2664 | * This is caused by an unpredicatble gcc behaviour on a cast of the first argument | |
2665 | * of PEM_ASN1_write(). For this reason this code section is disabled. To enable it, | |
2666 | * define ALLOW_ALWAYS_SSL_SESSION_DETAIL=1. | |
2667 | * Because there are two possible usable cast, if you get an error here, try the other | |
2668 | * commented line. */ | |
2669 | ||
2670 | PEM_ASN1_write((int(*)())i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); | |
2671 | /* PEM_ASN1_write((int(*)(...))i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, debug_log, (char *)SSL_get_session(ssl), NULL,NULL,0,NULL,NULL); */ | |
2930f303 | 2672 | |
0e33d58c | 2673 | #else |
2674 | ||
bf8fe701 | 2675 | debugs(83, 4, "With " OPENSSL_VERSION_TEXT ", session details are available only defining ALLOW_ALWAYS_SSL_SESSION_DETAIL=1 in the source." ); |
0fd2205b | 2676 | |
0e33d58c | 2677 | #endif |
6de9e64b | 2678 | /* Note: This does not automatically fflush the log file.. */ |
2679 | } | |
2680 | ||
bf8fe701 | 2681 | debugs(83, 2, "clientNegotiateSSL: New session " << |
2682 | SSL_get_session(ssl) << " on FD " << fd << " (" << | |
2683 | fd_table[fd].ipaddr << ":" << (int)fd_table[fd].remote_port << | |
2684 | ")"); | |
6de9e64b | 2685 | } |
2686 | ||
2bcab852 CT |
2687 | // Connection established. Retrieve TLS connection parameters for logging. |
2688 | conn->clientConnection->tlsNegotiations()->fillWith(ssl); | |
1f7c9178 | 2689 | |
6de9e64b | 2690 | client_cert = SSL_get_peer_certificate(ssl); |
62e76326 | 2691 | |
1f7c9178 | 2692 | if (client_cert != NULL) { |
bf8fe701 | 2693 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << |
2694 | " client certificate: subject: " << | |
2695 | X509_NAME_oneline(X509_get_subject_name(client_cert), 0, 0)); | |
2696 | ||
2697 | debugs(83, 3, "clientNegotiateSSL: FD " << fd << | |
2698 | " client certificate: issuer: " << | |
2699 | X509_NAME_oneline(X509_get_issuer_name(client_cert), 0, 0)); | |
1f7c9178 | 2700 | |
62e76326 | 2701 | X509_free(client_cert); |
1f7c9178 | 2702 | } else { |
bf8fe701 | 2703 | debugs(83, 5, "clientNegotiateSSL: FD " << fd << |
2704 | " has no certificate."); | |
1f7c9178 | 2705 | } |
2706 | ||
69f69080 CT |
2707 | #if defined(TLSEXT_NAMETYPE_host_name) |
2708 | if (!conn->serverBump()) { | |
2709 | // when in bumpClientFirst mode, get the server name from SNI | |
2710 | if (const char *server = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name)) | |
2711 | conn->resetSslCommonName(server); | |
2712 | } | |
2713 | #endif | |
2714 | ||
a46d2c0e | 2715 | conn->readSomeData(); |
1f7c9178 | 2716 | } |
2717 | ||
379e8c1c | 2718 | /** |
96993ee0 AJ |
2719 | * If Security::ContextPtr is given, starts reading the TLS handshake. |
2720 | * Otherwise, calls switchToHttps to generate a dynamic Security::ContextPtr. | |
379e8c1c AR |
2721 | */ |
2722 | static void | |
96993ee0 | 2723 | httpsEstablish(ConnStateData *connState, Security::ContextPtr sslContext) |
379e8c1c | 2724 | { |
33cc0629 | 2725 | Security::SessionPtr ssl = nullptr; |
379e8c1c AR |
2726 | assert(connState); |
2727 | const Comm::ConnectionPointer &details = connState->clientConnection; | |
2728 | ||
36048c42 | 2729 | if (!sslContext || !(ssl = httpsCreate(details, sslContext))) |
379e8c1c AR |
2730 | return; |
2731 | ||
7a957a93 AR |
2732 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; |
2733 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, TimeoutDialer, | |
87f237a9 | 2734 | connState, ConnStateData::requestTimeout); |
379e8c1c AR |
2735 | commSetConnTimeout(details, Config.Timeout.request, timeoutCall); |
2736 | ||
36048c42 | 2737 | Comm::SetSelect(details->fd, COMM_SELECT_READ, clientNegotiateSSL, connState, 0); |
379e8c1c AR |
2738 | } |
2739 | ||
2740 | /** | |
87f237a9 | 2741 | * A callback function to use with the ACLFilledChecklist callback. |
94bfd31f | 2742 | * In the case of ACCESS_ALLOWED answer initializes a bumped SSL connection, |
7a957a93 | 2743 | * else reverts the connection to tunnel mode. |
379e8c1c AR |
2744 | */ |
2745 | static void | |
2746 | httpsSslBumpAccessCheckDone(allow_t answer, void *data) | |
2747 | { | |
2748 | ConnStateData *connState = (ConnStateData *) data; | |
2749 | ||
7a957a93 | 2750 | // if the connection is closed or closing, just return. |
379e8c1c AR |
2751 | if (!connState->isOpen()) |
2752 | return; | |
2753 | ||
7a957a93 | 2754 | // Require both a match and a positive bump mode to work around exceptional |
caf3666d | 2755 | // cases where ACL code may return ACCESS_ALLOWED with zero answer.kind. |
5d65362c | 2756 | if (answer == ACCESS_ALLOWED && (answer.kind != Ssl::bumpNone && answer.kind != Ssl::bumpSplice)) { |
e4f14091 | 2757 | debugs(33, 2, "sslBump needed for " << connState->clientConnection << " method " << answer.kind); |
08097970 | 2758 | connState->sslBumpMode = static_cast<Ssl::BumpMode>(answer.kind); |
379e8c1c | 2759 | } else { |
08097970 AR |
2760 | debugs(33, 2, HERE << "sslBump not needed for " << connState->clientConnection); |
2761 | connState->sslBumpMode = Ssl::bumpNone; | |
9e104535 | 2762 | } |
fcc444e3 | 2763 | connState->fakeAConnectRequest("ssl-bump", connState->inBuf); |
a30b692c | 2764 | } |
379e8c1c | 2765 | |
63be0a78 | 2766 | /** handle a new HTTPS connection */ |
1f7c9178 | 2767 | static void |
449f0115 | 2768 | httpsAccept(const CommAcceptCbParams ¶ms) |
1f7c9178 | 2769 | { |
94bfd31f AJ |
2770 | MasterXaction::Pointer xact = params.xaction; |
2771 | const AnyP::PortCfgPointer s = xact->squidPort; | |
2772 | ||
c0ff709f | 2773 | // NP: it is possible the port was reconfigured when the call or accept() was queued. |
c4b7a5a9 | 2774 | |
c8407295 | 2775 | if (params.flag != Comm::OK) { |
cbff89ba | 2776 | // Its possible the call was still queued when the client disconnected |
449f0115 | 2777 | debugs(33, 2, "httpsAccept: " << s->listenConn << ": accept failure: " << xstrerr(params.xerrno)); |
62e76326 | 2778 | return; |
c4b7a5a9 | 2779 | } |
62e76326 | 2780 | |
449f0115 AJ |
2781 | debugs(33, 4, HERE << params.conn << " accepted, starting SSL negotiation."); |
2782 | fd_note(params.conn->fd, "client https connect"); | |
62e76326 | 2783 | |
859741ed AJ |
2784 | if (s->tcp_keepalive.enabled) { |
2785 | commSetTcpKeepalive(params.conn->fd, s->tcp_keepalive.idle, s->tcp_keepalive.interval, s->tcp_keepalive.timeout); | |
b2130d58 | 2786 | } |
2787 | ||
95dc7ff4 | 2788 | ++incoming_sockets_accepted; |
62e76326 | 2789 | |
89aec9b6 | 2790 | // Socket is ready, setup the connection manager to start using it |
92ae4c86 | 2791 | ConnStateData *connState = Https::NewServer(xact); |
e7ce227f | 2792 | AsyncJob::Start(connState); // usually async-calls postHttpsAccept() |
92ae4c86 | 2793 | } |
62e76326 | 2794 | |
92ae4c86 AR |
2795 | void |
2796 | ConnStateData::postHttpsAccept() | |
2797 | { | |
b3cb9958 | 2798 | if (port->flags.tunnelSslBumping) { |
e7ce227f | 2799 | debugs(33, 5, "accept transparent connection: " << clientConnection); |
62e76326 | 2800 | |
379e8c1c | 2801 | if (!Config.accessList.ssl_bump) { |
b3cb9958 | 2802 | httpsSslBumpAccessCheckDone(ACCESS_DENIED, this); |
379e8c1c AR |
2803 | return; |
2804 | } | |
87f237a9 | 2805 | |
379e8c1c | 2806 | // Create a fake HTTP request for ssl_bump ACL check, |
38450a50 | 2807 | // using tproxy/intercept provided destination IP and port. |
379e8c1c AR |
2808 | HttpRequest *request = new HttpRequest(); |
2809 | static char ip[MAX_IPSTRLEN]; | |
92ae4c86 | 2810 | assert(clientConnection->flags & (COMM_TRANSPARENT | COMM_INTERCEPTION)); |
851feda6 | 2811 | request->url.host(clientConnection->local.toStr(ip, sizeof(ip))); |
5c51bffb | 2812 | request->url.port(clientConnection->local.port()); |
b3cb9958 | 2813 | request->myportname = port->name; |
87f237a9 | 2814 | |
379e8c1c | 2815 | ACLFilledChecklist *acl_checklist = new ACLFilledChecklist(Config.accessList.ssl_bump, request, NULL); |
92ae4c86 | 2816 | acl_checklist->src_addr = clientConnection->remote; |
b3cb9958 AR |
2817 | acl_checklist->my_addr = port->s; |
2818 | acl_checklist->nonBlockingCheck(httpsSslBumpAccessCheckDone, this); | |
379e8c1c AR |
2819 | return; |
2820 | } else { | |
80b5995a | 2821 | httpsEstablish(this, port->secure.staticContext.get()); |
379e8c1c | 2822 | } |
1f7c9178 | 2823 | } |
2824 | ||
95d2589c | 2825 | void |
24438ec5 | 2826 | ConnStateData::sslCrtdHandleReplyWrapper(void *data, const Helper::Reply &reply) |
ae7ff0b8 | 2827 | { |
95d2589c CT |
2828 | ConnStateData * state_data = (ConnStateData *)(data); |
2829 | state_data->sslCrtdHandleReply(reply); | |
2830 | } | |
ae7ff0b8 | 2831 | |
95d2589c | 2832 | void |
24438ec5 | 2833 | ConnStateData::sslCrtdHandleReply(const Helper::Reply &reply) |
95d2589c | 2834 | { |
b418d9c8 CT |
2835 | if (!isOpen()) { |
2836 | debugs(33, 3, "Connection gone while waiting for ssl_crtd helper reply; helper reply:" << reply); | |
2837 | return; | |
2838 | } | |
2839 | ||
2428ce02 | 2840 | if (reply.result == Helper::BrokenHelper) { |
5955f162 AJ |
2841 | debugs(33, 5, HERE << "Certificate for " << sslConnectHostOrIp << " cannot be generated. ssl_crtd response: " << reply); |
2842 | } else if (!reply.other().hasContent()) { | |
2843 | debugs(1, DBG_IMPORTANT, HERE << "\"ssl_crtd\" helper returned <NULL> reply."); | |
95d2589c | 2844 | } else { |
ff2d7d92 | 2845 | Ssl::CrtdMessage reply_message(Ssl::CrtdMessage::REPLY); |
0272dd08 | 2846 | if (reply_message.parse(reply.other().content(), reply.other().contentSize()) != Ssl::CrtdMessage::OK) { |
fb2178bb | 2847 | debugs(33, 5, HERE << "Reply from ssl_crtd for " << sslConnectHostOrIp << " is incorrect"); |
95d2589c | 2848 | } else { |
2428ce02 | 2849 | if (reply.result != Helper::Okay) { |
fb2178bb | 2850 | debugs(33, 5, HERE << "Certificate for " << sslConnectHostOrIp << " cannot be generated. ssl_crtd response: " << reply_message.getBody()); |
95d2589c | 2851 | } else { |
fb2178bb | 2852 | debugs(33, 5, HERE << "Certificate for " << sslConnectHostOrIp << " was successfully recieved from ssl_crtd"); |
a9c2dd2f | 2853 | if (sslServerBump && (sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare)) { |
d620ae0e | 2854 | doPeekAndSpliceStep(); |
33cc0629 | 2855 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e CT |
2856 | bool ret = Ssl::configureSSLUsingPkeyAndCertFromMemory(ssl, reply_message.getBody().c_str(), *port); |
2857 | if (!ret) | |
e4f14091 | 2858 | debugs(33, 5, "Failed to set certificates to ssl object for PeekAndSplice mode"); |
d620ae0e | 2859 | } else { |
3aac8c26 | 2860 | auto ctx = Ssl::generateSslContextUsingPkeyAndCertFromMemory(reply_message.getBody().c_str(), *port); |
d620ae0e CT |
2861 | getSslContextDone(ctx, true); |
2862 | } | |
95d2589c CT |
2863 | return; |
2864 | } | |
2865 | } | |
2866 | } | |
2867 | getSslContextDone(NULL); | |
2868 | } | |
ae7ff0b8 | 2869 | |
06997a38 | 2870 | void ConnStateData::buildSslCertGenerationParams(Ssl::CertificateProperties &certProperties) |
fb2178bb | 2871 | { |
69f69080 | 2872 | certProperties.commonName = sslCommonName_.isEmpty() ? sslConnectHostOrIp.termedBuf() : sslCommonName_.c_str(); |
fb2178bb CT |
2873 | |
2874 | // fake certificate adaptation requires bump-server-first mode | |
caf3666d AR |
2875 | if (!sslServerBump) { |
2876 | assert(port->signingCert.get()); | |
2877 | certProperties.signWithX509.resetAndLock(port->signingCert.get()); | |
2878 | if (port->signPkey.get()) | |
2879 | certProperties.signWithPkey.resetAndLock(port->signPkey.get()); | |
2880 | certProperties.signAlgorithm = Ssl::algSignTrusted; | |
fb2178bb | 2881 | return; |
caf3666d | 2882 | } |
fb2178bb | 2883 | |
7a957a93 AR |
2884 | // In case of an error while connecting to the secure server, use a fake |
2885 | // trusted certificate, with no mimicked fields and no adaptation | |
2886 | // algorithms. There is nothing we can mimic so we want to minimize the | |
2887 | // number of warnings the user will have to see to get to the error page. | |
fd4624d7 CT |
2888 | assert(sslServerBump->entry); |
2889 | if (sslServerBump->entry->isEmpty()) { | |
2890 | if (X509 *mimicCert = sslServerBump->serverCert.get()) | |
59a49556 CT |
2891 | certProperties.mimicCert.resetAndLock(mimicCert); |
2892 | ||
b248c2a3 | 2893 | ACLFilledChecklist checklist(NULL, sslServerBump->request.getRaw(), |
59a49556 | 2894 | clientConnection != NULL ? clientConnection->rfc931 : dash_str); |
7a957a93 | 2895 | checklist.sslErrors = cbdataReference(sslServerBump->sslErrors); |
59a49556 CT |
2896 | |
2897 | for (sslproxy_cert_adapt *ca = Config.ssl_client.cert_adapt; ca != NULL; ca = ca->next) { | |
7a957a93 | 2898 | // If the algorithm already set, then ignore it. |
a06042fa | 2899 | if ((ca->alg == Ssl::algSetCommonName && certProperties.setCommonName) || |
87f237a9 A |
2900 | (ca->alg == Ssl::algSetValidAfter && certProperties.setValidAfter) || |
2901 | (ca->alg == Ssl::algSetValidBefore && certProperties.setValidBefore) ) | |
a06042fa CT |
2902 | continue; |
2903 | ||
59a49556 CT |
2904 | if (ca->aclList && checklist.fastCheck(ca->aclList) == ACCESS_ALLOWED) { |
2905 | const char *alg = Ssl::CertAdaptAlgorithmStr[ca->alg]; | |
2906 | const char *param = ca->param; | |
87f237a9 | 2907 | |
7a957a93 AR |
2908 | // For parameterless CN adaptation, use hostname from the |
2909 | // CONNECT request. | |
a06042fa | 2910 | if (ca->alg == Ssl::algSetCommonName) { |
59a49556 CT |
2911 | if (!param) |
2912 | param = sslConnectHostOrIp.termedBuf(); | |
2913 | certProperties.commonName = param; | |
2914 | certProperties.setCommonName = true; | |
87f237a9 | 2915 | } else if (ca->alg == Ssl::algSetValidAfter) |
59a49556 | 2916 | certProperties.setValidAfter = true; |
87f237a9 | 2917 | else if (ca->alg == Ssl::algSetValidBefore) |
59a49556 CT |
2918 | certProperties.setValidBefore = true; |
2919 | ||
87f237a9 | 2920 | debugs(33, 5, HERE << "Matches certificate adaptation aglorithm: " << |
8f9720ce | 2921 | alg << " param: " << (param ? param : "-")); |
aebe6888 | 2922 | } |
fb2178bb | 2923 | } |
aebe6888 | 2924 | |
59a49556 CT |
2925 | certProperties.signAlgorithm = Ssl::algSignEnd; |
2926 | for (sslproxy_cert_sign *sg = Config.ssl_client.cert_sign; sg != NULL; sg = sg->next) { | |
2927 | if (sg->aclList && checklist.fastCheck(sg->aclList) == ACCESS_ALLOWED) { | |
2928 | certProperties.signAlgorithm = (Ssl::CertSignAlgorithm)sg->alg; | |
2929 | break; | |
2930 | } | |
aebe6888 | 2931 | } |
fd4624d7 | 2932 | } else {// if (!sslServerBump->entry->isEmpty()) |
59a49556 CT |
2933 | // Use trusted certificate for a Squid-generated error |
2934 | // or the user would have to add a security exception | |
2935 | // just to see the error page. We will close the connection | |
2936 | // so that the trust is not extended to non-Squid content. | |
2937 | certProperties.signAlgorithm = Ssl::algSignTrusted; | |
aebe6888 CT |
2938 | } |
2939 | ||
10d914f6 | 2940 | assert(certProperties.signAlgorithm != Ssl::algSignEnd); |
aebe6888 CT |
2941 | |
2942 | if (certProperties.signAlgorithm == Ssl::algSignUntrusted) { | |
f4e4d4d6 | 2943 | assert(port->untrustedSigningCert.get()); |
95588170 CT |
2944 | certProperties.signWithX509.resetAndLock(port->untrustedSigningCert.get()); |
2945 | certProperties.signWithPkey.resetAndLock(port->untrustedSignPkey.get()); | |
87f237a9 | 2946 | } else { |
f4e4d4d6 CT |
2947 | assert(port->signingCert.get()); |
2948 | certProperties.signWithX509.resetAndLock(port->signingCert.get()); | |
aebe6888 CT |
2949 | |
2950 | if (port->signPkey.get()) | |
2951 | certProperties.signWithPkey.resetAndLock(port->signPkey.get()); | |
2952 | } | |
2953 | signAlgorithm = certProperties.signAlgorithm; | |
3c26b00a CT |
2954 | |
2955 | certProperties.signHash = Ssl::DefaultSignHash; | |
fb2178bb CT |
2956 | } |
2957 | ||
1ce2822d | 2958 | void |
95d2589c CT |
2959 | ConnStateData::getSslContextStart() |
2960 | { | |
43e45ea7 AJ |
2961 | // XXX starting SSL with a pipeline of requests still waiting for non-SSL replies? |
2962 | assert(pipeline.count() < 2); // the CONNECT is okay for now. Anything else is a bug. | |
2963 | pipeline.terminateAll(0); | |
2964 | /* careful: terminateAll(0) above frees request, host, etc. */ | |
129fe2a1 | 2965 | |
fb2178bb | 2966 | if (port->generateHostCertificates) { |
aebe6888 | 2967 | Ssl::CertificateProperties certProperties; |
06997a38 CT |
2968 | buildSslCertGenerationParams(certProperties); |
2969 | sslBumpCertKey = certProperties.dbKey().c_str(); | |
b38b26cb | 2970 | assert(sslBumpCertKey.size() > 0 && sslBumpCertKey[0] != '\0'); |
fb2178bb | 2971 | |
d620ae0e | 2972 | // Disable caching for bumpPeekAndSplice mode |
a9c2dd2f | 2973 | if (!(sslServerBump && (sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare))) { |
e4f14091 | 2974 | debugs(33, 5, "Finding SSL certificate for " << sslBumpCertKey << " in cache"); |
31855516 | 2975 | Ssl::LocalContextStorage * ssl_ctx_cache = Ssl::TheGlobalContextStorage.getLocalStorage(port->s); |
96993ee0 | 2976 | Security::ContextPtr dynCtx = nullptr; |
3db3be00 | 2977 | Security::ContextPointer *cachedCtx = ssl_ctx_cache ? ssl_ctx_cache->get(sslBumpCertKey.termedBuf()) : nullptr; |
d620ae0e | 2978 | if (cachedCtx && (dynCtx = cachedCtx->get())) { |
e4f14091 | 2979 | debugs(33, 5, "SSL certificate for " << sslBumpCertKey << " found in cache"); |
d620ae0e | 2980 | if (Ssl::verifySslCertificate(dynCtx, certProperties)) { |
e4f14091 | 2981 | debugs(33, 5, "Cached SSL certificate for " << sslBumpCertKey << " is valid"); |
d620ae0e CT |
2982 | getSslContextDone(dynCtx); |
2983 | return; | |
2984 | } else { | |
e4f14091 | 2985 | debugs(33, 5, "Cached SSL certificate for " << sslBumpCertKey << " is out of date. Delete this certificate from cache"); |
31855516 CT |
2986 | if (ssl_ctx_cache) |
2987 | ssl_ctx_cache->del(sslBumpCertKey.termedBuf()); | |
d620ae0e | 2988 | } |
95d2589c | 2989 | } else { |
e4f14091 | 2990 | debugs(33, 5, "SSL certificate for " << sslBumpCertKey << " haven't found in cache"); |
95d2589c | 2991 | } |
95d2589c CT |
2992 | } |
2993 | ||
b5faa519 | 2994 | #if USE_SSL_CRTD |
00fc192d | 2995 | try { |
87f237a9 | 2996 | debugs(33, 5, HERE << "Generating SSL certificate for " << certProperties.commonName << " using ssl_crtd."); |
ff2d7d92 | 2997 | Ssl::CrtdMessage request_message(Ssl::CrtdMessage::REQUEST); |
87f237a9 A |
2998 | request_message.setCode(Ssl::CrtdMessage::code_new_certificate); |
2999 | request_message.composeRequest(certProperties); | |
3000 | debugs(33, 5, HERE << "SSL crtd request: " << request_message.compose().c_str()); | |
3001 | Ssl::Helper::GetInstance()->sslSubmit(request_message, sslCrtdHandleReplyWrapper, this); | |
3002 | return; | |
3003 | } catch (const std::exception &e) { | |
00fc192d AR |
3004 | debugs(33, DBG_IMPORTANT, "ERROR: Failed to compose ssl_crtd " << |
3005 | "request for " << certProperties.commonName << | |
3006 | " certificate: " << e.what() << "; will now block to " << | |
3007 | "generate that certificate."); | |
3008 | // fall through to do blocking in-process generation. | |
3009 | } | |
3010 | #endif // USE_SSL_CRTD | |
3011 | ||
aebe6888 | 3012 | debugs(33, 5, HERE << "Generating SSL certificate for " << certProperties.commonName); |
a9c2dd2f | 3013 | if (sslServerBump && (sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare)) { |
d620ae0e | 3014 | doPeekAndSpliceStep(); |
33cc0629 | 3015 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e | 3016 | if (!Ssl::configureSSL(ssl, certProperties, *port)) |
e4f14091 | 3017 | debugs(33, 5, "Failed to set certificates to ssl object for PeekAndSplice mode"); |
d620ae0e | 3018 | } else { |
c961ecc0 | 3019 | auto dynCtx = Ssl::generateSslContext(certProperties, *port); |
d620ae0e CT |
3020 | getSslContextDone(dynCtx, true); |
3021 | } | |
1ce2822d | 3022 | return; |
95d2589c | 3023 | } |
1ce2822d | 3024 | getSslContextDone(NULL); |
95d2589c CT |
3025 | } |
3026 | ||
1ce2822d | 3027 | void |
96993ee0 | 3028 | ConnStateData::getSslContextDone(Security::ContextPtr sslContext, bool isNew) |
95d2589c CT |
3029 | { |
3030 | // Try to add generated ssl context to storage. | |
3031 | if (port->generateHostCertificates && isNew) { | |
a594dbfa | 3032 | |
a411d213 CT |
3033 | if (signAlgorithm == Ssl::algSignTrusted) { |
3034 | // Add signing certificate to the certificates chain | |
3035 | X509 *cert = port->signingCert.get(); | |
3036 | if (SSL_CTX_add_extra_chain_cert(sslContext, cert)) { | |
3037 | // increase the certificate lock | |
3038 | CRYPTO_add(&(cert->references),1,CRYPTO_LOCK_X509); | |
3039 | } else { | |
3040 | const int ssl_error = ERR_get_error(); | |
3041 | debugs(33, DBG_IMPORTANT, "WARNING: can not add signing certificate to SSL context chain: " << ERR_error_string(ssl_error, NULL)); | |
3042 | } | |
aebe6888 | 3043 | Ssl::addChainToSslContext(sslContext, port->certsToChain.get()); |
a411d213 | 3044 | } |
aebe6888 | 3045 | //else it is self-signed or untrusted do not attrach any certificate |
a594dbfa | 3046 | |
9873e378 | 3047 | Ssl::LocalContextStorage *ssl_ctx_cache = Ssl::TheGlobalContextStorage.getLocalStorage(port->s); |
b38b26cb | 3048 | assert(sslBumpCertKey.size() > 0 && sslBumpCertKey[0] != '\0'); |
fb2178bb | 3049 | if (sslContext) { |
3db3be00 | 3050 | if (!ssl_ctx_cache || !ssl_ctx_cache->add(sslBumpCertKey.termedBuf(), new Security::ContextPointer(sslContext))) { |
95d2589c | 3051 | // If it is not in storage delete after using. Else storage deleted it. |
73c36fd9 | 3052 | fd_table[clientConnection->fd].dynamicSslContext = sslContext; |
95d2589c CT |
3053 | } |
3054 | } else { | |
fb2178bb | 3055 | debugs(33, 2, HERE << "Failed to generate SSL cert for " << sslConnectHostOrIp); |
95d2589c CT |
3056 | } |
3057 | } | |
3058 | ||
3059 | // If generated ssl context = NULL, try to use static ssl context. | |
3060 | if (!sslContext) { | |
80b5995a AJ |
3061 | if (!port->secure.staticContext) { |
3062 | debugs(83, DBG_IMPORTANT, "Closing " << clientConnection->remote << " as lacking TLS context"); | |
73c36fd9 | 3063 | clientConnection->close(); |
1ce2822d | 3064 | return; |
95d2589c | 3065 | } else { |
80b5995a AJ |
3066 | debugs(33, 5, "Using static TLS context."); |
3067 | sslContext = port->secure.staticContext.get(); | |
95d2589c CT |
3068 | } |
3069 | } | |
ae7ff0b8 | 3070 | |
a9b1d8c6 | 3071 | if (!httpsCreate(clientConnection, sslContext)) |
1ce2822d | 3072 | return; |
ae7ff0b8 | 3073 | |
4e67d484 CT |
3074 | // bumped intercepted conns should already have Config.Timeout.request set |
3075 | // but forwarded connections may only have Config.Timeout.lifetime. [Re]set | |
3076 | // to make sure the connection does not get stuck on non-SSL clients. | |
3077 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; | |
3078 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, TimeoutDialer, | |
3899de60 | 3079 | this, ConnStateData::requestTimeout); |
4e67d484 | 3080 | commSetConnTimeout(clientConnection, Config.Timeout.request, timeoutCall); |
ae7ff0b8 | 3081 | |
a3c6762c | 3082 | // Disable the client read handler until CachePeer selection is complete |
73c36fd9 AJ |
3083 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_READ, NULL, NULL, 0); |
3084 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_READ, clientNegotiateSSL, this, 0); | |
ae7ff0b8 | 3085 | switchedToHttps_ = true; |
ae7ff0b8 | 3086 | } |
3087 | ||
1ce2822d | 3088 | void |
caf3666d | 3089 | ConnStateData::switchToHttps(HttpRequest *request, Ssl::BumpMode bumpServerMode) |
95d2589c CT |
3090 | { |
3091 | assert(!switchedToHttps_); | |
3092 | ||
5c51bffb AJ |
3093 | sslConnectHostOrIp = request->url.host(); |
3094 | resetSslCommonName(request->url.host()); | |
95d2589c | 3095 | |
83d4cd15 CT |
3096 | // We are going to read new request |
3097 | flags.readMore = true; | |
73c36fd9 | 3098 | debugs(33, 5, HERE << "converting " << clientConnection << " to SSL"); |
95d2589c | 3099 | |
4599cded AJ |
3100 | // keep version major.minor details the same. |
3101 | // but we are now performing the HTTPS handshake traffic | |
3102 | transferProtocol.protocol = AnyP::PROTO_HTTPS; | |
3103 | ||
2bd84e5f CT |
3104 | // If sslServerBump is set, then we have decided to deny CONNECT |
3105 | // and now want to switch to SSL to send the error to the client | |
3106 | // without even peeking at the origin server certificate. | |
caf3666d | 3107 | if (bumpServerMode == Ssl::bumpServerFirst && !sslServerBump) { |
e857372a | 3108 | request->flags.sslPeek = true; |
65ba7f04 | 3109 | sslServerBump = new Ssl::ServerBump(request); |
fd4624d7 | 3110 | |
d7ce0bcd | 3111 | // will call httpsPeeked() with certificate and connection, eventually |
b248c2a3 | 3112 | FwdState::fwdStart(clientConnection, sslServerBump->entry, sslServerBump->request.getRaw()); |
d7ce0bcd | 3113 | return; |
e1f72a8b | 3114 | } else if (bumpServerMode == Ssl::bumpPeek || bumpServerMode == Ssl::bumpStare) { |
d620ae0e | 3115 | request->flags.sslPeek = true; |
5d65362c | 3116 | sslServerBump = new Ssl::ServerBump(request, NULL, bumpServerMode); |
d620ae0e | 3117 | startPeekAndSplice(); |
e1f72a8b | 3118 | return; |
d7ce0bcd AR |
3119 | } |
3120 | ||
fb2178bb | 3121 | // otherwise, use sslConnectHostOrIp |
d7ce0bcd AR |
3122 | getSslContextStart(); |
3123 | } | |
3124 | ||
3248e962 CT |
3125 | bool |
3126 | ConnStateData::spliceOnError(const err_type err) | |
3127 | { | |
3128 | if (Config.accessList.on_unsupported_protocol) { | |
3129 | assert(serverBump()); | |
3130 | ACLFilledChecklist checklist(Config.accessList.on_unsupported_protocol, serverBump()->request.getRaw(), NULL); | |
3131 | checklist.requestErrorType = err; | |
3132 | checklist.conn(this); | |
3133 | allow_t answer = checklist.fastCheck(); | |
3134 | if (answer == ACCESS_ALLOWED && answer.kind == 1) { | |
3135 | splice(); | |
3136 | return true; | |
3137 | } | |
3138 | } | |
3139 | return false; | |
3140 | } | |
3141 | ||
d620ae0e CT |
3142 | /** negotiate an SSL connection */ |
3143 | static void | |
3144 | clientPeekAndSpliceSSL(int fd, void *data) | |
3145 | { | |
3146 | ConnStateData *conn = (ConnStateData *)data; | |
33cc0629 | 3147 | auto ssl = fd_table[fd].ssl.get(); |
d620ae0e | 3148 | |
8693472e | 3149 | debugs(83, 5, "Start peek and splice on FD " << fd); |
d620ae0e | 3150 | |
3248e962 CT |
3151 | int ret = 0; |
3152 | if ((ret = Squid_SSL_accept(conn, clientPeekAndSpliceSSL)) < 0) | |
d620ae0e CT |
3153 | debugs(83, 2, "SSL_accept failed."); |
3154 | ||
3155 | BIO *b = SSL_get_rbio(ssl); | |
3156 | assert(b); | |
3157 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(b->ptr); | |
3248e962 CT |
3158 | if (ret < 0) { |
3159 | const err_type err = bio->noSslClient() ? ERR_PROTOCOL_UNKNOWN : ERR_SECURE_ACCEPT_FAIL; | |
3160 | if (!conn->spliceOnError(err)) | |
3161 | conn->clientConnection->close(); | |
3162 | return; | |
44352c16 | 3163 | } |
3248e962 CT |
3164 | |
3165 | if (bio->rBufData().contentSize() > 0) | |
3166 | conn->receivedFirstByte(); | |
3167 | ||
d620ae0e | 3168 | if (bio->gotHello()) { |
cedca6e7 | 3169 | if (conn->serverBump()) { |
2bcab852 | 3170 | Ssl::Bio::sslFeatures const &features = bio->receivedHelloFeatures(); |
69f69080 | 3171 | if (!features.serverName.isEmpty()) { |
8693472e | 3172 | conn->serverBump()->clientSni = features.serverName; |
69f69080 CT |
3173 | conn->resetSslCommonName(features.serverName.c_str()); |
3174 | } | |
cedca6e7 CT |
3175 | } |
3176 | ||
e4f14091 | 3177 | debugs(83, 5, "I got hello. Start forwarding the request!!! "); |
d620ae0e CT |
3178 | Comm::SetSelect(fd, COMM_SELECT_READ, NULL, NULL, 0); |
3179 | Comm::SetSelect(fd, COMM_SELECT_WRITE, NULL, NULL, 0); | |
3180 | conn->startPeekAndSpliceDone(); | |
3181 | return; | |
3182 | } | |
3183 | } | |
3184 | ||
3185 | void ConnStateData::startPeekAndSplice() | |
3186 | { | |
3187 | // will call httpsPeeked() with certificate and connection, eventually | |
c961ecc0 | 3188 | auto unConfiguredCTX = Ssl::createSSLContext(port->signingCert, port->signPkey, *port); |
d620ae0e CT |
3189 | fd_table[clientConnection->fd].dynamicSslContext = unConfiguredCTX; |
3190 | ||
3191 | if (!httpsCreate(clientConnection, unConfiguredCTX)) | |
3192 | return; | |
3193 | ||
3194 | // commSetConnTimeout() was called for this request before we switched. | |
3248e962 CT |
3195 | // Fix timeout to request_start_timeout |
3196 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; | |
3197 | AsyncCall::Pointer timeoutCall = JobCallback(33, 5, | |
3198 | TimeoutDialer, this, ConnStateData::requestTimeout); | |
3199 | commSetConnTimeout(clientConnection, Config.Timeout.request_start_timeout, timeoutCall); | |
3200 | // Also reset receivedFirstByte_ flag to allow this timeout work in the case we have | |
3201 | // a bumbed "connect" request on non transparent port. | |
3202 | receivedFirstByte_ = false; | |
d620ae0e CT |
3203 | |
3204 | // Disable the client read handler until CachePeer selection is complete | |
3205 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_READ, NULL, NULL, 0); | |
3206 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_READ, clientPeekAndSpliceSSL, this, 0); | |
3207 | switchedToHttps_ = true; | |
3208 | ||
33cc0629 | 3209 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e CT |
3210 | BIO *b = SSL_get_rbio(ssl); |
3211 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(b->ptr); | |
3212 | bio->hold(true); | |
3213 | } | |
3214 | ||
5d65362c CT |
3215 | void httpsSslBumpStep2AccessCheckDone(allow_t answer, void *data) |
3216 | { | |
3217 | ConnStateData *connState = (ConnStateData *) data; | |
3218 | ||
3219 | // if the connection is closed or closing, just return. | |
3220 | if (!connState->isOpen()) | |
3221 | return; | |
3222 | ||
e4f14091 | 3223 | debugs(33, 5, "Answer: " << answer << " kind:" << answer.kind); |
a9c2dd2f CT |
3224 | assert(connState->serverBump()); |
3225 | Ssl::BumpMode bumpAction; | |
3226 | if (answer == ACCESS_ALLOWED) { | |
640fe8fb | 3227 | bumpAction = (Ssl::BumpMode)answer.kind; |
a9c2dd2f CT |
3228 | } else |
3229 | bumpAction = Ssl::bumpSplice; | |
3230 | ||
3231 | connState->serverBump()->act.step2 = bumpAction; | |
3232 | connState->sslBumpMode = bumpAction; | |
3233 | ||
3234 | if (bumpAction == Ssl::bumpTerminate) { | |
b54a7c5a | 3235 | connState->clientConnection->close(); |
a9c2dd2f CT |
3236 | } else if (bumpAction != Ssl::bumpSplice) { |
3237 | connState->startPeekAndSpliceDone(); | |
3248e962 CT |
3238 | } else |
3239 | connState->splice(); | |
3240 | } | |
5d65362c | 3241 | |
3248e962 CT |
3242 | void |
3243 | ConnStateData::splice() | |
3244 | { | |
33cc0629 AJ |
3245 | // normally we can splice here, because we just got client hello message |
3246 | auto ssl = fd_table[clientConnection->fd].ssl.get(); | |
2bcab852 CT |
3247 | |
3248 | //retrieve received TLS client information | |
3249 | clientConnection->tlsNegotiations()->fillWith(ssl); | |
3250 | ||
3248e962 CT |
3251 | BIO *b = SSL_get_rbio(ssl); |
3252 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(b->ptr); | |
3253 | MemBuf const &rbuf = bio->rBufData(); | |
3254 | debugs(83,5, "Bio for " << clientConnection << " read " << rbuf.contentSize() << " helo bytes"); | |
3255 | // Do splice: | |
3256 | fd_table[clientConnection->fd].read_method = &default_read_method; | |
3257 | fd_table[clientConnection->fd].write_method = &default_write_method; | |
3258 | ||
3259 | if (transparent()) { | |
3260 | // set the current protocol to something sensible (was "HTTPS" for the bumping process) | |
3261 | // we are sending a faked-up HTTP/1.1 message wrapper, so go with that. | |
3262 | transferProtocol = Http::ProtocolVersion(); | |
a30b692c AJ |
3263 | // XXX: copy from MemBuf reallocates, not a regression since old code did too |
3264 | SBuf temp; | |
3265 | temp.append(rbuf.content(), rbuf.contentSize()); | |
3266 | fakeAConnectRequest("intercepted TLS spliced", temp); | |
3248e962 CT |
3267 | } else { |
3268 | // XXX: assuming that there was an HTTP/1.1 CONNECT to begin with... | |
3269 | ||
3270 | // reset the current protocol to HTTP/1.1 (was "HTTPS" for the bumping process) | |
3271 | transferProtocol = Http::ProtocolVersion(); | |
fcc444e3 AJ |
3272 | // inBuf still has the "CONNECT ..." request data, reset it to SSL hello message |
3273 | inBuf.append(rbuf.content(), rbuf.contentSize()); | |
d3dddfb5 | 3274 | Http::StreamPointer context = pipeline.front(); |
3248e962 | 3275 | ClientHttpRequest *http = context->http; |
ac9f46af | 3276 | tunnelStart(http); |
5d65362c CT |
3277 | } |
3278 | } | |
3279 | ||
d620ae0e CT |
3280 | void |
3281 | ConnStateData::startPeekAndSpliceDone() | |
3282 | { | |
5d65362c CT |
3283 | // This is the Step2 of the SSL bumping |
3284 | assert(sslServerBump); | |
3285 | if (sslServerBump->step == Ssl::bumpStep1) { | |
3286 | sslServerBump->step = Ssl::bumpStep2; | |
3287 | // Run a accessList check to check if want to splice or continue bumping | |
3288 | ||
3289 | ACLFilledChecklist *acl_checklist = new ACLFilledChecklist(Config.accessList.ssl_bump, sslServerBump->request.getRaw(), NULL); | |
3290 | //acl_checklist->src_addr = params.conn->remote; | |
3291 | //acl_checklist->my_addr = s->s; | |
640fe8fb CT |
3292 | acl_checklist->banAction(allow_t(ACCESS_ALLOWED, Ssl::bumpNone)); |
3293 | acl_checklist->banAction(allow_t(ACCESS_ALLOWED, Ssl::bumpClientFirst)); | |
3294 | acl_checklist->banAction(allow_t(ACCESS_ALLOWED, Ssl::bumpServerFirst)); | |
5d65362c CT |
3295 | acl_checklist->nonBlockingCheck(httpsSslBumpStep2AccessCheckDone, this); |
3296 | return; | |
3297 | } | |
3298 | ||
31855516 | 3299 | FwdState::fwdStart(clientConnection, sslServerBump->entry, sslServerBump->request.getRaw()); |
d620ae0e CT |
3300 | } |
3301 | ||
3302 | void | |
3303 | ConnStateData::doPeekAndSpliceStep() | |
3304 | { | |
33cc0629 | 3305 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e CT |
3306 | BIO *b = SSL_get_rbio(ssl); |
3307 | assert(b); | |
3308 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(b->ptr); | |
3309 | ||
e4f14091 | 3310 | debugs(33, 5, "PeekAndSplice mode, proceed with client negotiation. Currrent state:" << SSL_state_string_long(ssl)); |
d620ae0e CT |
3311 | bio->hold(false); |
3312 | ||
3313 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_WRITE, clientNegotiateSSL, this, 0); | |
3314 | switchedToHttps_ = true; | |
3315 | } | |
3316 | ||
d7ce0bcd AR |
3317 | void |
3318 | ConnStateData::httpsPeeked(Comm::ConnectionPointer serverConnection) | |
3319 | { | |
fd4624d7 | 3320 | Must(sslServerBump != NULL); |
819c207f | 3321 | |
061bbdec | 3322 | if (Comm::IsConnOpen(serverConnection)) { |
061bbdec CT |
3323 | pinConnection(serverConnection, NULL, NULL, false); |
3324 | ||
fb2178bb | 3325 | debugs(33, 5, HERE << "bumped HTTPS server: " << sslConnectHostOrIp); |
59a49556 | 3326 | } else { |
13858f50 | 3327 | debugs(33, 5, HERE << "Error while bumping: " << sslConnectHostOrIp); |
129fe2a1 CT |
3328 | |
3329 | // copy error detail from bump-server-first request to CONNECT request | |
baa6929f AJ |
3330 | if (!pipeline.empty() && pipeline.front()->http != nullptr && pipeline.front()->http->request) |
3331 | pipeline.front()->http->request->detailError(sslServerBump->request->errType, sslServerBump->request->errDetail); | |
59a49556 | 3332 | } |
061bbdec | 3333 | |
1ce2822d | 3334 | getSslContextStart(); |
95d2589c CT |
3335 | } |
3336 | ||
cb4f4424 | 3337 | #endif /* USE_OPENSSL */ |
1f7c9178 | 3338 | |
0bd3c2a3 AJ |
3339 | void |
3340 | ConnStateData::fakeAConnectRequest(const char *reason, const SBuf &payload) | |
3341 | { | |
3342 | // fake a CONNECT request to force connState to tunnel | |
e88bdb0e | 3343 | SBuf connectHost; |
65e0c910 | 3344 | #if USE_OPENSSL |
e88bdb0e CT |
3345 | if (serverBump() && !serverBump()->clientSni.isEmpty()) { |
3346 | connectHost.assign(serverBump()->clientSni); | |
3347 | if (clientConnection->local.port() > 0) | |
3348 | connectHost.appendf(":%d",clientConnection->local.port()); | |
65e0c910 CT |
3349 | } else |
3350 | #endif | |
3351 | { | |
e88bdb0e CT |
3352 | static char ip[MAX_IPSTRLEN]; |
3353 | connectHost.assign(clientConnection->local.toUrl(ip, sizeof(ip))); | |
3354 | } | |
0bd3c2a3 AJ |
3355 | // Pre-pend this fake request to the TLS bits already in the buffer |
3356 | SBuf retStr; | |
3357 | retStr.append("CONNECT "); | |
e88bdb0e | 3358 | retStr.append(connectHost); |
0bd3c2a3 | 3359 | retStr.append(" HTTP/1.1\r\nHost: "); |
e88bdb0e | 3360 | retStr.append(connectHost); |
0bd3c2a3 AJ |
3361 | retStr.append("\r\n\r\n"); |
3362 | retStr.append(payload); | |
fcc444e3 | 3363 | inBuf = retStr; |
0bd3c2a3 AJ |
3364 | bool ret = handleReadData(); |
3365 | if (ret) | |
3366 | ret = clientParseRequests(); | |
3367 | ||
3368 | if (!ret) { | |
3369 | debugs(33, 2, "Failed to start fake CONNECT request for " << reason << " connection: " << clientConnection); | |
3370 | clientConnection->close(); | |
3371 | } | |
3372 | } | |
3373 | ||
00516be1 AR |
3374 | /// check FD after clientHttp[s]ConnectionOpened, adjust HttpSockets as needed |
3375 | static bool | |
73c36fd9 | 3376 | OpenedHttpSocket(const Comm::ConnectionPointer &c, const Ipc::FdNoteId portType) |
00516be1 | 3377 | { |
73c36fd9 | 3378 | if (!Comm::IsConnOpen(c)) { |
00516be1 AR |
3379 | Must(NHttpSockets > 0); // we tried to open some |
3380 | --NHttpSockets; // there will be fewer sockets than planned | |
3381 | Must(HttpSockets[NHttpSockets] < 0); // no extra fds received | |
3382 | ||
3383 | if (!NHttpSockets) // we could not open any listen sockets at all | |
cbff89ba | 3384 | fatalf("Unable to open %s",FdNote(portType)); |
00516be1 AR |
3385 | |
3386 | return false; | |
3387 | } | |
3388 | return true; | |
3389 | } | |
3390 | ||
3391 | /// find any unused HttpSockets[] slot and store fd there or return false | |
3392 | static bool | |
e0d28505 | 3393 | AddOpenedHttpSocket(const Comm::ConnectionPointer &conn) |
00516be1 AR |
3394 | { |
3395 | bool found = false; | |
95dc7ff4 | 3396 | for (int i = 0; i < NHttpSockets && !found; ++i) { |
00516be1 | 3397 | if ((found = HttpSockets[i] < 0)) |
e0d28505 | 3398 | HttpSockets[i] = conn->fd; |
00516be1 AR |
3399 | } |
3400 | return found; | |
3401 | } | |
15df8349 | 3402 | |
d193a436 | 3403 | static void |
15df8349 | 3404 | clientHttpConnectionsOpen(void) |
3405 | { | |
fa720bfb | 3406 | for (AnyP::PortCfgPointer s = HttpPortList; s != NULL; s = s->next) { |
339e4d7a AJ |
3407 | const char *scheme = AnyP::UriScheme(s->transport.protocol).c_str(); |
3408 | ||
65d448bc | 3409 | if (MAXTCPLISTENPORTS == NHttpSockets) { |
339e4d7a | 3410 | debugs(1, DBG_IMPORTANT, "WARNING: You have too many '" << scheme << "_port' lines."); |
e0236918 | 3411 | debugs(1, DBG_IMPORTANT, " The limit is " << MAXTCPLISTENPORTS << " HTTP ports."); |
62e76326 | 3412 | continue; |
3413 | } | |
3414 | ||
cb4f4424 | 3415 | #if USE_OPENSSL |
6a25a046 | 3416 | if (s->flags.tunnelSslBumping) { |
339e4d7a AJ |
3417 | if (!Config.accessList.ssl_bump) { |
3418 | debugs(33, DBG_IMPORTANT, "WARNING: No ssl_bump configured. Disabling ssl-bump on " << scheme << "_port " << s->s); | |
3419 | s->flags.tunnelSslBumping = false; | |
3420 | } | |
80b5995a | 3421 | if (!s->secure.staticContext && !s->generateHostCertificates) { |
339e4d7a AJ |
3422 | debugs(1, DBG_IMPORTANT, "Will not bump SSL at " << scheme << "_port " << s->s << " due to TLS initialization failure."); |
3423 | s->flags.tunnelSslBumping = false; | |
3424 | if (s->transport.protocol == AnyP::PROTO_HTTP) | |
3425 | s->secure.encryptTransport = false; | |
3426 | } | |
3427 | if (s->flags.tunnelSslBumping) { | |
3428 | // Create ssl_ctx cache for this port. | |
3429 | auto sz = s->dynamicCertMemCacheSize == std::numeric_limits<size_t>::max() ? 4194304 : s->dynamicCertMemCacheSize; | |
3430 | Ssl::TheGlobalContextStorage.addLocalStorage(s->s, sz); | |
3431 | } | |
95d2589c | 3432 | } |
ae7ff0b8 | 3433 | |
80b5995a | 3434 | if (s->secure.encryptTransport && !s->secure.staticContext) { |
339e4d7a AJ |
3435 | debugs(1, DBG_CRITICAL, "ERROR: Ignoring " << scheme << "_port " << s->s << " due to TLS context initialization failure."); |
3436 | continue; | |
3437 | } | |
188c0e31 | 3438 | #endif |
339e4d7a | 3439 | |
e0d28505 | 3440 | // Fill out a Comm::Connection which IPC will open as a listener for us |
8bbb16e3 | 3441 | // then pass back when active so we can start a TcpAcceptor subscription. |
e0d28505 AJ |
3442 | s->listenConn = new Comm::Connection; |
3443 | s->listenConn->local = s->s; | |
c303f6e3 | 3444 | |
339e4d7a AJ |
3445 | s->listenConn->flags = COMM_NONBLOCKING | (s->flags.tproxyIntercept ? COMM_TRANSPARENT : 0) | |
3446 | (s->flags.natIntercept ? COMM_INTERCEPTION : 0); | |
62e76326 | 3447 | |
339e4d7a AJ |
3448 | typedef CommCbFunPtrCallT<CommAcceptCbPtrFun> AcceptCall; |
3449 | if (s->transport.protocol == AnyP::PROTO_HTTP) { | |
3450 | // setup the subscriptions such that new connections accepted by listenConn are handled by HTTP | |
3451 | RefCount<AcceptCall> subCall = commCbCall(5, 5, "httpAccept", CommAcceptCbPtrFun(httpAccept, CommAcceptCbParams(NULL))); | |
3452 | Subscription::Pointer sub = new CallSubscription<AcceptCall>(subCall); | |
62e76326 | 3453 | |
339e4d7a AJ |
3454 | AsyncCall::Pointer listenCall = asyncCall(33,2, "clientListenerConnectionOpened", |
3455 | ListeningStartedDialer(&clientListenerConnectionOpened, s, Ipc::fdnHttpSocket, sub)); | |
3456 | Ipc::StartListening(SOCK_STREAM, IPPROTO_TCP, s->listenConn, Ipc::fdnHttpSocket, listenCall); | |
d193a436 | 3457 | |
cb4f4424 | 3458 | #if USE_OPENSSL |
339e4d7a AJ |
3459 | } else if (s->transport.protocol == AnyP::PROTO_HTTPS) { |
3460 | // setup the subscriptions such that new connections accepted by listenConn are handled by HTTPS | |
3461 | RefCount<AcceptCall> subCall = commCbCall(5, 5, "httpsAccept", CommAcceptCbPtrFun(httpsAccept, CommAcceptCbParams(NULL))); | |
3462 | Subscription::Pointer sub = new CallSubscription<AcceptCall>(subCall); | |
3463 | ||
3464 | AsyncCall::Pointer listenCall = asyncCall(33, 2, "clientListenerConnectionOpened", | |
3465 | ListeningStartedDialer(&clientListenerConnectionOpened, | |
3466 | s, Ipc::fdnHttpsSocket, sub)); | |
3467 | Ipc::StartListening(SOCK_STREAM, IPPROTO_TCP, s->listenConn, Ipc::fdnHttpsSocket, listenCall); | |
3468 | #endif | |
d7ce0bcd AR |
3469 | } |
3470 | ||
339e4d7a | 3471 | HttpSockets[NHttpSockets] = -1; // set in clientListenerConnectionOpened |
a38ec4b1 | 3472 | ++NHttpSockets; |
cbff89ba | 3473 | } |
d193a436 | 3474 | } |
d193a436 | 3475 | |
92ae4c86 | 3476 | void |
27c841f6 AR |
3477 | clientStartListeningOn(AnyP::PortCfgPointer &port, const RefCount< CommCbFunPtrCallT<CommAcceptCbPtrFun> > &subCall, const Ipc::FdNoteId fdNote) |
3478 | { | |
92ae4c86 AR |
3479 | // Fill out a Comm::Connection which IPC will open as a listener for us |
3480 | port->listenConn = new Comm::Connection; | |
3481 | port->listenConn->local = port->s; | |
e7ce227f AR |
3482 | port->listenConn->flags = |
3483 | COMM_NONBLOCKING | | |
3484 | (port->flags.tproxyIntercept ? COMM_TRANSPARENT : 0) | | |
3485 | (port->flags.natIntercept ? COMM_INTERCEPTION : 0); | |
92ae4c86 AR |
3486 | |
3487 | // route new connections to subCall | |
3488 | typedef CommCbFunPtrCallT<CommAcceptCbPtrFun> AcceptCall; | |
3489 | Subscription::Pointer sub = new CallSubscription<AcceptCall>(subCall); | |
e7ce227f AR |
3490 | AsyncCall::Pointer listenCall = |
3491 | asyncCall(33, 2, "clientListenerConnectionOpened", | |
3492 | ListeningStartedDialer(&clientListenerConnectionOpened, | |
3493 | port, fdNote, sub)); | |
92ae4c86 | 3494 | Ipc::StartListening(SOCK_STREAM, IPPROTO_TCP, port->listenConn, fdNote, listenCall); |
434a79b0 | 3495 | |
92ae4c86 AR |
3496 | assert(NHttpSockets < MAXTCPLISTENPORTS); |
3497 | HttpSockets[NHttpSockets] = -1; | |
3498 | ++NHttpSockets; | |
434a79b0 DK |
3499 | } |
3500 | ||
e0d28505 | 3501 | /// process clientHttpConnectionsOpen result |
00516be1 | 3502 | static void |
fa720bfb | 3503 | clientListenerConnectionOpened(AnyP::PortCfgPointer &s, const Ipc::FdNoteId portTypeNote, const Subscription::Pointer &sub) |
00516be1 | 3504 | { |
fa720bfb AJ |
3505 | Must(s != NULL); |
3506 | ||
8bbb16e3 | 3507 | if (!OpenedHttpSocket(s->listenConn, portTypeNote)) |
00516be1 | 3508 | return; |
62e76326 | 3509 | |
e0d28505 | 3510 | Must(Comm::IsConnOpen(s->listenConn)); |
62e76326 | 3511 | |
8bbb16e3 | 3512 | // TCP: setup a job to handle accept() with subscribed handler |
fa720bfb | 3513 | AsyncJob::Start(new Comm::TcpAcceptor(s, FdNote(portTypeNote), sub)); |
8bbb16e3 | 3514 | |
e0236918 | 3515 | debugs(1, DBG_IMPORTANT, "Accepting " << |
6a25a046 | 3516 | (s->flags.natIntercept ? "NAT intercepted " : "") << |
0d901ef4 | 3517 | (s->flags.tproxyIntercept ? "TPROXY intercepted " : "") << |
6a25a046 FC |
3518 | (s->flags.tunnelSslBumping ? "SSL bumped " : "") << |
3519 | (s->flags.accelSurrogate ? "reverse-proxy " : "") | |
8bbb16e3 AJ |
3520 | << FdNote(portTypeNote) << " connections at " |
3521 | << s->listenConn); | |
62e76326 | 3522 | |
e0d28505 | 3523 | Must(AddOpenedHttpSocket(s->listenConn)); // otherwise, we have received a fd we did not ask for |
d193a436 | 3524 | } |
3525 | ||
d193a436 | 3526 | void |
3527 | clientOpenListenSockets(void) | |
3528 | { | |
3529 | clientHttpConnectionsOpen(); | |
92ae4c86 | 3530 | Ftp::StartListening(); |
62e76326 | 3531 | |
15df8349 | 3532 | if (NHttpSockets < 1) |
e7ce227f | 3533 | fatal("No HTTP, HTTPS, or FTP ports configured"); |
15df8349 | 3534 | } |
edce4d98 | 3535 | |
c0fbae16 | 3536 | void |
e7ce227f | 3537 | clientConnectionsClose() |
c0fbae16 | 3538 | { |
fa720bfb | 3539 | for (AnyP::PortCfgPointer s = HttpPortList; s != NULL; s = s->next) { |
00406b24 | 3540 | if (s->listenConn != NULL) { |
339e4d7a | 3541 | debugs(1, DBG_IMPORTANT, "Closing HTTP(S) port " << s->listenConn->local); |
00406b24 AJ |
3542 | s->listenConn->close(); |
3543 | s->listenConn = NULL; | |
04f55905 AJ |
3544 | } |
3545 | } | |
62e76326 | 3546 | |
92ae4c86 | 3547 | Ftp::StopListening(); |
434a79b0 | 3548 | |
04f55905 | 3549 | // TODO see if we can drop HttpSockets array entirely */ |
95dc7ff4 | 3550 | for (int i = 0; i < NHttpSockets; ++i) { |
04f55905 AJ |
3551 | HttpSockets[i] = -1; |
3552 | } | |
62e76326 | 3553 | |
c0fbae16 | 3554 | NHttpSockets = 0; |
3555 | } | |
f66a9ef4 | 3556 | |
3557 | int | |
190154cf | 3558 | varyEvaluateMatch(StoreEntry * entry, HttpRequest * request) |
f66a9ef4 | 3559 | { |
3560 | const char *vary = request->vary_headers; | |
789217a2 | 3561 | int has_vary = entry->getReply()->header.has(Http::HdrType::VARY); |
f66a9ef4 | 3562 | #if X_ACCELERATOR_VARY |
62e76326 | 3563 | |
edce4d98 | 3564 | has_vary |= |
789217a2 | 3565 | entry->getReply()->header.has(Http::HdrType::HDR_X_ACCELERATOR_VARY); |
f66a9ef4 | 3566 | #endif |
62e76326 | 3567 | |
f66a9ef4 | 3568 | if (!has_vary || !entry->mem_obj->vary_headers) { |
62e76326 | 3569 | if (vary) { |
3570 | /* Oops... something odd is going on here.. */ | |
e0236918 | 3571 | debugs(33, DBG_IMPORTANT, "varyEvaluateMatch: Oops. Not a Vary object on second attempt, '" << |
c877c0bc | 3572 | entry->mem_obj->urlXXX() << "' '" << vary << "'"); |
62e76326 | 3573 | safe_free(request->vary_headers); |
3574 | return VARY_CANCEL; | |
3575 | } | |
3576 | ||
3577 | if (!has_vary) { | |
3578 | /* This is not a varying object */ | |
3579 | return VARY_NONE; | |
3580 | } | |
3581 | ||
3582 | /* virtual "vary" object found. Calculate the vary key and | |
3583 | * continue the search | |
3584 | */ | |
3585 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3586 | ||
3587 | if (vary) { | |
3588 | request->vary_headers = xstrdup(vary); | |
3589 | return VARY_OTHER; | |
3590 | } else { | |
3591 | /* Ouch.. we cannot handle this kind of variance */ | |
3592 | /* XXX This cannot really happen, but just to be complete */ | |
3593 | return VARY_CANCEL; | |
3594 | } | |
f66a9ef4 | 3595 | } else { |
62e76326 | 3596 | if (!vary) { |
3597 | vary = httpMakeVaryMark(request, entry->getReply()); | |
3598 | ||
3599 | if (vary) | |
3600 | request->vary_headers = xstrdup(vary); | |
3601 | } | |
3602 | ||
3603 | if (!vary) { | |
3604 | /* Ouch.. we cannot handle this kind of variance */ | |
3605 | /* XXX This cannot really happen, but just to be complete */ | |
3606 | return VARY_CANCEL; | |
3607 | } else if (strcmp(vary, entry->mem_obj->vary_headers) == 0) { | |
3608 | return VARY_MATCH; | |
3609 | } else { | |
3610 | /* Oops.. we have already been here and still haven't | |
3611 | * found the requested variant. Bail out | |
3612 | */ | |
e0236918 | 3613 | debugs(33, DBG_IMPORTANT, "varyEvaluateMatch: Oops. Not a Vary match on second attempt, '" << |
c877c0bc | 3614 | entry->mem_obj->urlXXX() << "' '" << vary << "'"); |
62e76326 | 3615 | return VARY_CANCEL; |
3616 | } | |
f66a9ef4 | 3617 | } |
3618 | } | |
28d4805a | 3619 | |
c0941a6a | 3620 | ACLFilledChecklist * |
59a1efb2 | 3621 | clientAclChecklistCreate(const acl_access * acl, ClientHttpRequest * http) |
28d4805a | 3622 | { |
1cf238db | 3623 | ConnStateData * conn = http->getConn(); |
c0941a6a | 3624 | ACLFilledChecklist *ch = new ACLFilledChecklist(acl, http->request, |
73c36fd9 | 3625 | cbdataReferenceValid(conn) && conn != NULL && conn->clientConnection != NULL ? conn->clientConnection->rfc931 : dash_str); |
d4806c91 | 3626 | ch->al = http->al; |
28d4805a | 3627 | /* |
3628 | * hack for ident ACL. It needs to get full addresses, and a place to store | |
3629 | * the ident result on persistent connections... | |
3630 | */ | |
3631 | /* connection oriented auth also needs these two lines for it's operation. */ | |
28d4805a | 3632 | return ch; |
3633 | } | |
a46d2c0e | 3634 | |
a46d2c0e | 3635 | bool |
3636 | ConnStateData::transparent() const | |
3637 | { | |
40d34a62 | 3638 | return clientConnection != NULL && (clientConnection->flags & (COMM_TRANSPARENT|COMM_INTERCEPTION)); |
a46d2c0e | 3639 | } |
3640 | ||
5f8252d2 | 3641 | BodyPipe::Pointer |
3e62bd58 | 3642 | ConnStateData::expectRequestBody(int64_t size) |
5f8252d2 | 3643 | { |
3644 | bodyPipe = new BodyPipe(this); | |
39cb8c41 AR |
3645 | if (size >= 0) |
3646 | bodyPipe->setBodySize(size); | |
3647 | else | |
3648 | startDechunkingRequest(); | |
5f8252d2 | 3649 | return bodyPipe; |
3650 | } | |
3651 | ||
39cb8c41 AR |
3652 | int64_t |
3653 | ConnStateData::mayNeedToReadMoreBody() const | |
3654 | { | |
3655 | if (!bodyPipe) | |
3656 | return 0; // request without a body or read/produced all body bytes | |
3657 | ||
3658 | if (!bodyPipe->bodySizeKnown()) | |
3659 | return -1; // probably need to read more, but we cannot be sure | |
3660 | ||
3661 | const int64_t needToProduce = bodyPipe->unproducedSize(); | |
fcc444e3 | 3662 | const int64_t haveAvailable = static_cast<int64_t>(inBuf.length()); |
39cb8c41 AR |
3663 | |
3664 | if (needToProduce <= haveAvailable) | |
3665 | return 0; // we have read what we need (but are waiting for pipe space) | |
3666 | ||
3667 | return needToProduce - haveAvailable; | |
3668 | } | |
3669 | ||
55e44db9 | 3670 | void |
cf6eb29e | 3671 | ConnStateData::stopReceiving(const char *error) |
55e44db9 | 3672 | { |
cf6eb29e CT |
3673 | debugs(33, 4, HERE << "receiving error (" << clientConnection << "): " << error << |
3674 | "; old sending error: " << | |
3675 | (stoppedSending() ? stoppedSending_ : "none")); | |
5f8252d2 | 3676 | |
cf6eb29e CT |
3677 | if (const char *oldError = stoppedReceiving()) { |
3678 | debugs(33, 3, HERE << "already stopped receiving: " << oldError); | |
3679 | return; // nothing has changed as far as this connection is concerned | |
3680 | } | |
5f8252d2 | 3681 | |
cf6eb29e | 3682 | stoppedReceiving_ = error; |
5f8252d2 | 3683 | |
cf6eb29e CT |
3684 | if (const char *sendError = stoppedSending()) { |
3685 | debugs(33, 3, HERE << "closing because also stopped sending: " << sendError); | |
3686 | clientConnection->close(); | |
3687 | } | |
55e44db9 | 3688 | } |
3689 | ||
eb44b2d7 | 3690 | void |
e29ccb57 A |
3691 | ConnStateData::expectNoForwarding() |
3692 | { | |
eb44b2d7 CT |
3693 | if (bodyPipe != NULL) { |
3694 | debugs(33, 4, HERE << "no consumer for virgin body " << bodyPipe->status()); | |
3695 | bodyPipe->expectNoConsumption(); | |
3696 | } | |
3697 | } | |
3698 | ||
39cb8c41 | 3699 | /// initialize dechunking state |
3ff65596 | 3700 | void |
39cb8c41 | 3701 | ConnStateData::startDechunkingRequest() |
3ff65596 | 3702 | { |
39cb8c41 AR |
3703 | Must(bodyPipe != NULL); |
3704 | debugs(33, 5, HERE << "start dechunking" << bodyPipe->status()); | |
fcc444e3 AJ |
3705 | assert(!bodyParser); |
3706 | bodyParser = new Http1::TeChunkedParser; | |
3ff65596 AR |
3707 | } |
3708 | ||
39cb8c41 | 3709 | /// put parsed content into input buffer and clean up |
3ff65596 | 3710 | void |
39cb8c41 | 3711 | ConnStateData::finishDechunkingRequest(bool withSuccess) |
3ff65596 | 3712 | { |
39cb8c41 | 3713 | debugs(33, 5, HERE << "finish dechunking: " << withSuccess); |
3ff65596 | 3714 | |
39cb8c41 AR |
3715 | if (bodyPipe != NULL) { |
3716 | debugs(33, 7, HERE << "dechunked tail: " << bodyPipe->status()); | |
3717 | BodyPipe::Pointer myPipe = bodyPipe; | |
3718 | stopProducingFor(bodyPipe, withSuccess); // sets bodyPipe->bodySize() | |
3719 | Must(!bodyPipe); // we rely on it being nil after we are done with body | |
3720 | if (withSuccess) { | |
3721 | Must(myPipe->bodySizeKnown()); | |
d3dddfb5 | 3722 | Http::StreamPointer context = pipeline.front(); |
39cb8c41 AR |
3723 | if (context != NULL && context->http && context->http->request) |
3724 | context->http->request->setContentLength(myPipe->bodySize()); | |
3725 | } | |
3ff65596 | 3726 | } |
3ff65596 | 3727 | |
fcc444e3 AJ |
3728 | delete bodyParser; |
3729 | bodyParser = NULL; | |
a46d2c0e | 3730 | } |
d67acb4e | 3731 | |
139a1d68 | 3732 | // XXX: this is an HTTP/1-only operation |
655daa06 AR |
3733 | void |
3734 | ConnStateData::sendControlMsg(HttpControlMsg msg) | |
3735 | { | |
eedd4182 AR |
3736 | if (!isOpen()) { |
3737 | debugs(33, 3, HERE << "ignoring 1xx due to earlier closure"); | |
655daa06 AR |
3738 | return; |
3739 | } | |
3740 | ||
84540b47 | 3741 | // HTTP/1 1xx status messages are only valid when there is a transaction to trigger them |
139a1d68 | 3742 | if (!pipeline.empty()) { |
84540b47 AJ |
3743 | HttpReply::Pointer rep(msg.reply); |
3744 | Must(rep); | |
3745 | // remember the callback | |
3746 | cbControlMsgSent = msg.cbSuccess; | |
3747 | ||
3748 | typedef CommCbMemFunT<HttpControlMsgSink, CommIoCbParams> Dialer; | |
3749 | AsyncCall::Pointer call = JobCallback(33, 5, Dialer, this, HttpControlMsgSink::wroteControlMsg); | |
3750 | ||
3751 | writeControlMsgAndCall(rep.getRaw(), call); | |
655daa06 AR |
3752 | return; |
3753 | } | |
3754 | ||
3755 | debugs(33, 3, HERE << " closing due to missing context for 1xx"); | |
73c36fd9 | 3756 | clientConnection->close(); |
655daa06 AR |
3757 | } |
3758 | ||
d7ce0bcd | 3759 | /// Our close handler called by Comm when the pinned connection is closed |
d67acb4e AJ |
3760 | void |
3761 | ConnStateData::clientPinnedConnectionClosed(const CommCloseCbParams &io) | |
3762 | { | |
7a957a93 AR |
3763 | // FwdState might repin a failed connection sooner than this close |
3764 | // callback is called for the failed connection. | |
693cb033 CT |
3765 | assert(pinning.serverConnection == io.conn); |
3766 | pinning.closeHandler = NULL; // Comm unregisters handlers before calling | |
3767 | const bool sawZeroReply = pinning.zeroReply; // reset when unpinning | |
b54a7c5a | 3768 | pinning.serverConnection->noteClosure(); |
89b1d7a2 | 3769 | unpinConnection(false); |
f8e4867b | 3770 | |
7ac40923 | 3771 | if (sawZeroReply && clientConnection != NULL) { |
693cb033 CT |
3772 | debugs(33, 3, "Closing client connection on pinned zero reply."); |
3773 | clientConnection->close(); | |
85563fd9 | 3774 | } |
f8e4867b | 3775 | |
d67acb4e AJ |
3776 | } |
3777 | ||
b1cf2350 | 3778 | void |
f8e4867b | 3779 | ConnStateData::pinConnection(const Comm::ConnectionPointer &pinServer, HttpRequest *request, CachePeer *aPeer, bool auth, bool monitor) |
9e008dda | 3780 | { |
e7ce227f | 3781 | if (!Comm::IsConnOpen(pinning.serverConnection) || |
27c841f6 | 3782 | pinning.serverConnection->fd != pinServer->fd) |
89b1d7a2 | 3783 | pinNewConnection(pinServer, request, aPeer, auth); |
d67acb4e | 3784 | |
f8e4867b AR |
3785 | if (monitor) |
3786 | startPinnedConnectionMonitoring(); | |
89b1d7a2 | 3787 | } |
9e008dda | 3788 | |
89b1d7a2 AR |
3789 | void |
3790 | ConnStateData::pinNewConnection(const Comm::ConnectionPointer &pinServer, HttpRequest *request, CachePeer *aPeer, bool auth) | |
3791 | { | |
3792 | unpinConnection(true); // closes pinned connection, if any, and resets fields | |
9e008dda | 3793 | |
73c36fd9 | 3794 | pinning.serverConnection = pinServer; |
d7ce0bcd | 3795 | |
85563fd9 AR |
3796 | debugs(33, 3, HERE << pinning.serverConnection); |
3797 | ||
89b1d7a2 AR |
3798 | Must(pinning.serverConnection != NULL); |
3799 | ||
d7ce0bcd AR |
3800 | // when pinning an SSL bumped connection, the request may be NULL |
3801 | const char *pinnedHost = "[unknown]"; | |
3802 | if (request) { | |
5c51bffb AJ |
3803 | pinning.host = xstrdup(request->url.host()); |
3804 | pinning.port = request->url.port(); | |
d7ce0bcd AR |
3805 | pinnedHost = pinning.host; |
3806 | } else { | |
4dd643d5 | 3807 | pinning.port = pinServer->remote.port(); |
d7ce0bcd | 3808 | } |
d67acb4e | 3809 | pinning.pinned = true; |
8bcf08e0 FC |
3810 | if (aPeer) |
3811 | pinning.peer = cbdataReference(aPeer); | |
d67acb4e | 3812 | pinning.auth = auth; |
e3a4aecc | 3813 | char stmp[MAX_IPSTRLEN]; |
89b1d7a2 | 3814 | char desc[FD_DESC_SZ]; |
e3a4aecc | 3815 | snprintf(desc, FD_DESC_SZ, "%s pinned connection for %s (%d)", |
d7ce0bcd | 3816 | (auth || !aPeer) ? pinnedHost : aPeer->name, |
4dd643d5 | 3817 | clientConnection->remote.toUrl(stmp,MAX_IPSTRLEN), |
d7ce0bcd | 3818 | clientConnection->fd); |
73c36fd9 | 3819 | fd_note(pinning.serverConnection->fd, desc); |
9e008dda | 3820 | |
d67acb4e | 3821 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
4299f876 | 3822 | pinning.closeHandler = JobCallback(33, 5, |
4cb2536f | 3823 | Dialer, this, ConnStateData::clientPinnedConnectionClosed); |
85563fd9 AR |
3824 | // remember the pinned connection so that cb does not unpin a fresher one |
3825 | typedef CommCloseCbParams Params; | |
3826 | Params ¶ms = GetCommParams<Params>(pinning.closeHandler); | |
3827 | params.conn = pinning.serverConnection; | |
73c36fd9 | 3828 | comm_add_close_handler(pinning.serverConnection->fd, pinning.closeHandler); |
7ac40923 AR |
3829 | } |
3830 | ||
e7ce227f AR |
3831 | /// [re]start monitoring pinned connection for peer closures so that we can |
3832 | /// propagate them to an _idle_ client pinned to that peer | |
7ac40923 AR |
3833 | void |
3834 | ConnStateData::startPinnedConnectionMonitoring() | |
3835 | { | |
3836 | if (pinning.readHandler != NULL) | |
3837 | return; // already monitoring | |
3838 | ||
3839 | typedef CommCbMemFunT<ConnStateData, CommIoCbParams> Dialer; | |
3840 | pinning.readHandler = JobCallback(33, 3, | |
3841 | Dialer, this, ConnStateData::clientPinnedConnectionRead); | |
7e66d5e2 | 3842 | Comm::Read(pinning.serverConnection, pinning.readHandler); |
7ac40923 AR |
3843 | } |
3844 | ||
3845 | void | |
3846 | ConnStateData::stopPinnedConnectionMonitoring() | |
3847 | { | |
3848 | if (pinning.readHandler != NULL) { | |
7e66d5e2 | 3849 | Comm::ReadCancel(pinning.serverConnection->fd, pinning.readHandler); |
7ac40923 AR |
3850 | pinning.readHandler = NULL; |
3851 | } | |
3852 | } | |
3853 | ||
96aedee5 CT |
3854 | #if USE_OPENSSL |
3855 | bool | |
3856 | ConnStateData::handleIdleClientPinnedTlsRead() | |
3857 | { | |
3858 | // A ready-for-reading connection means that the TLS server either closed | |
3859 | // the connection, sent us some unexpected HTTP data, or started TLS | |
3860 | // renegotiations. We should close the connection except for the last case. | |
3861 | ||
3862 | Must(pinning.serverConnection != nullptr); | |
33cc0629 | 3863 | auto ssl = fd_table[pinning.serverConnection->fd].ssl.get(); |
96aedee5 CT |
3864 | if (!ssl) |
3865 | return false; | |
3866 | ||
3867 | char buf[1]; | |
3868 | const int readResult = SSL_read(ssl, buf, sizeof(buf)); | |
3869 | ||
3870 | if (readResult > 0 || SSL_pending(ssl) > 0) { | |
3871 | debugs(83, 2, pinning.serverConnection << " TLS application data read"); | |
3872 | return false; | |
3873 | } | |
3874 | ||
3875 | switch(const int error = SSL_get_error(ssl, readResult)) { | |
3876 | case SSL_ERROR_WANT_WRITE: | |
3877 | debugs(83, DBG_IMPORTANT, pinning.serverConnection << " TLS SSL_ERROR_WANT_WRITE request for idle pinned connection"); | |
737ace5a | 3878 | // fall through to restart monitoring, for now |
96aedee5 CT |
3879 | case SSL_ERROR_NONE: |
3880 | case SSL_ERROR_WANT_READ: | |
3881 | startPinnedConnectionMonitoring(); | |
3882 | return true; | |
3883 | ||
3884 | default: | |
3885 | debugs(83, 2, pinning.serverConnection << " TLS error: " << error); | |
3886 | return false; | |
3887 | } | |
3888 | ||
3889 | // not reached | |
3890 | return true; | |
3891 | } | |
3892 | #endif | |
3893 | ||
7ac40923 AR |
3894 | /// Our read handler called by Comm when the server either closes an idle pinned connection or |
3895 | /// perhaps unexpectedly sends something on that idle (from Squid p.o.v.) connection. | |
3896 | void | |
3897 | ConnStateData::clientPinnedConnectionRead(const CommIoCbParams &io) | |
3898 | { | |
3899 | pinning.readHandler = NULL; // Comm unregisters handlers before calling | |
3900 | ||
c8407295 | 3901 | if (io.flag == Comm::ERR_CLOSING) |
7ac40923 AR |
3902 | return; // close handler will clean up |
3903 | ||
96aedee5 CT |
3904 | Must(pinning.serverConnection == io.conn); |
3905 | ||
3906 | #if USE_OPENSSL | |
3907 | if (handleIdleClientPinnedTlsRead()) | |
3908 | return; | |
3909 | #endif | |
3910 | ||
e500cc89 | 3911 | const bool clientIsIdle = pipeline.empty(); |
7ac40923 AR |
3912 | |
3913 | debugs(33, 3, "idle pinned " << pinning.serverConnection << " read " << | |
3914 | io.size << (clientIsIdle ? " with idle client" : "")); | |
3915 | ||
7ac40923 AR |
3916 | pinning.serverConnection->close(); |
3917 | ||
3918 | // If we are still sending data to the client, do not close now. When we are done sending, | |
4a4fbcef | 3919 | // ConnStateData::kick() checks pinning.serverConnection and will close. |
7ac40923 AR |
3920 | // However, if we are idle, then we must close to inform the idle client and minimize races. |
3921 | if (clientIsIdle && clientConnection != NULL) | |
3922 | clientConnection->close(); | |
d67acb4e AJ |
3923 | } |
3924 | ||
e3a4aecc | 3925 | const Comm::ConnectionPointer |
a3c6762c | 3926 | ConnStateData::validatePinnedConnection(HttpRequest *request, const CachePeer *aPeer) |
d67acb4e | 3927 | { |
85563fd9 AR |
3928 | debugs(33, 7, HERE << pinning.serverConnection); |
3929 | ||
d67acb4e | 3930 | bool valid = true; |
73c36fd9 | 3931 | if (!Comm::IsConnOpen(pinning.serverConnection)) |
e3a4aecc | 3932 | valid = false; |
5c51bffb | 3933 | else if (pinning.auth && pinning.host && request && strcasecmp(pinning.host, request->url.host()) != 0) |
9e008dda | 3934 | valid = false; |
5c51bffb | 3935 | else if (request && pinning.port != request->url.port()) |
9e008dda | 3936 | valid = false; |
6de3828e | 3937 | else if (pinning.peer && !cbdataReferenceValid(pinning.peer)) |
9e008dda | 3938 | valid = false; |
6de3828e | 3939 | else if (aPeer != pinning.peer) |
9e008dda | 3940 | valid = false; |
d67acb4e | 3941 | |
9e008dda | 3942 | if (!valid) { |
b1cf2350 | 3943 | /* The pinning info is not safe, remove any pinning info */ |
89b1d7a2 | 3944 | unpinConnection(true); |
d67acb4e AJ |
3945 | } |
3946 | ||
73c36fd9 | 3947 | return pinning.serverConnection; |
d67acb4e AJ |
3948 | } |
3949 | ||
89b1d7a2 AR |
3950 | Comm::ConnectionPointer |
3951 | ConnStateData::borrowPinnedConnection(HttpRequest *request, const CachePeer *aPeer) | |
3952 | { | |
3953 | debugs(33, 7, pinning.serverConnection); | |
3954 | if (validatePinnedConnection(request, aPeer) != NULL) | |
f8e4867b | 3955 | stopPinnedConnectionMonitoring(); |
89b1d7a2 AR |
3956 | |
3957 | return pinning.serverConnection; // closed if validation failed | |
3958 | } | |
3959 | ||
b1cf2350 | 3960 | void |
89b1d7a2 | 3961 | ConnStateData::unpinConnection(const bool andClose) |
d67acb4e | 3962 | { |
85563fd9 AR |
3963 | debugs(33, 3, HERE << pinning.serverConnection); |
3964 | ||
9e008dda AJ |
3965 | if (pinning.peer) |
3966 | cbdataReferenceDone(pinning.peer); | |
d67acb4e | 3967 | |
d7ce0bcd | 3968 | if (Comm::IsConnOpen(pinning.serverConnection)) { |
87f237a9 A |
3969 | if (pinning.closeHandler != NULL) { |
3970 | comm_remove_close_handler(pinning.serverConnection->fd, pinning.closeHandler); | |
3971 | pinning.closeHandler = NULL; | |
3972 | } | |
89b1d7a2 | 3973 | |
f8e4867b | 3974 | stopPinnedConnectionMonitoring(); |
89b1d7a2 AR |
3975 | |
3976 | // close the server side socket if requested | |
3977 | if (andClose) | |
3978 | pinning.serverConnection->close(); | |
3979 | pinning.serverConnection = NULL; | |
d67acb4e | 3980 | } |
d7ce0bcd | 3981 | |
d67acb4e | 3982 | safe_free(pinning.host); |
e3a4aecc | 3983 | |
693cb033 CT |
3984 | pinning.zeroReply = false; |
3985 | ||
e3a4aecc AJ |
3986 | /* NOTE: pinning.pinned should be kept. This combined with fd == -1 at the end of a request indicates that the host |
3987 | * connection has gone away */ | |
d67acb4e | 3988 | } |
44352c16 | 3989 |