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dd11e0b7 | 1 | /* |
b8ae064d | 2 | * Copyright (C) 1996-2023 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" |
e5ddd4ce | 63 | #include "base/AsyncCallbacks.h" |
00406b24 | 64 | #include "base/Subscription.h" |
d841c88d | 65 | #include "base/TextException.h" |
a011edee | 66 | #include "CachePeer.h" |
95e6d864 | 67 | #include "client_db.h" |
602d9612 | 68 | #include "client_side.h" |
04f55905 AJ |
69 | #include "client_side_reply.h" |
70 | #include "client_side_request.h" | |
71 | #include "ClientRequestContext.h" | |
c8be6d7b | 72 | #include "clientStream.h" |
c4b7a5a9 | 73 | #include "comm.h" |
cfd66529 | 74 | #include "comm/Connection.h" |
d841c88d | 75 | #include "comm/Loops.h" |
7e66d5e2 | 76 | #include "comm/Read.h" |
cbff89ba | 77 | #include "comm/TcpAcceptor.h" |
582c2af2 FC |
78 | #include "comm/Write.h" |
79 | #include "CommCalls.h" | |
675b8408 | 80 | #include "debug/Messages.h" |
83b053a0 | 81 | #include "error/ExceptionErrorDetail.h" |
8eb0a7ee | 82 | #include "errorpage.h" |
c4ad1349 | 83 | #include "fd.h" |
04f55905 | 84 | #include "fde.h" |
95e6d864 | 85 | #include "fqdncache.h" |
eb13c21e | 86 | #include "FwdState.h" |
67679543 | 87 | #include "globals.h" |
24438ec5 AJ |
88 | #include "helper.h" |
89 | #include "helper/Reply.h" | |
5c0c642e | 90 | #include "http.h" |
c99510dd | 91 | #include "http/one/RequestParser.h" |
db1720f8 | 92 | #include "http/one/TeChunkedParser.h" |
d3dddfb5 | 93 | #include "http/Stream.h" |
25b6a907 | 94 | #include "HttpHdrContRange.h" |
a5bac1d2 | 95 | #include "HttpHeaderTools.h" |
528b2c61 | 96 | #include "HttpReply.h" |
97 | #include "HttpRequest.h" | |
308e60be | 98 | #include "internal.h" |
cbff89ba | 99 | #include "ipc/FdNotes.h" |
fe090a86 | 100 | #include "ipc/StartListening.h" |
1c7ae5ff | 101 | #include "log/access_log.h" |
0eb49b6d | 102 | #include "MemBuf.h" |
04f55905 | 103 | #include "MemObject.h" |
b6149797 | 104 | #include "mime_header.h" |
b1cef121 | 105 | #include "parser/Tokenizer.h" |
36c774f7 EB |
106 | #include "proxyp/Header.h" |
107 | #include "proxyp/Parser.h" | |
83b053a0 | 108 | #include "sbuf/Stream.h" |
907831e6 | 109 | #include "security/Certificate.h" |
e227da8d | 110 | #include "security/CommunicationSecrets.h" |
4106be3f | 111 | #include "security/Io.h" |
e227da8d | 112 | #include "security/KeyLog.h" |
4106be3f | 113 | #include "security/NegotiationHistory.h" |
92ae4c86 | 114 | #include "servers/forward.h" |
4d5904f7 | 115 | #include "SquidConfig.h" |
e1656dc4 | 116 | #include "StatCounters.h" |
00a7574e | 117 | #include "StatHist.h" |
582c2af2 FC |
118 | #include "Store.h" |
119 | #include "TimeOrTag.h" | |
4e540555 | 120 | #include "tools.h" |
582c2af2 FC |
121 | |
122 | #if USE_AUTH | |
123 | #include "auth/UserRequest.h" | |
124 | #endif | |
125 | #if USE_DELAY_POOLS | |
126 | #include "ClientInfo.h" | |
b27668ec | 127 | #include "MessageDelayPools.h" |
582c2af2 | 128 | #endif |
cb4f4424 | 129 | #if USE_OPENSSL |
d620ae0e | 130 | #include "ssl/bio.h" |
95d2589c | 131 | #include "ssl/context_storage.h" |
602d9612 | 132 | #include "ssl/gadgets.h" |
95d2589c | 133 | #include "ssl/helper.h" |
602d9612 | 134 | #include "ssl/ProxyCerts.h" |
fd4624d7 | 135 | #include "ssl/ServerBump.h" |
4db984be | 136 | #include "ssl/support.h" |
95d2589c | 137 | #endif |
95d2589c | 138 | |
074d6a40 AJ |
139 | #include <climits> |
140 | #include <cmath> | |
95d2589c | 141 | #include <limits> |
95d2589c | 142 | |
6fa8c664 MM |
143 | #if HAVE_SYSTEMD_SD_DAEMON_H |
144 | #include <systemd/sd-daemon.h> | |
145 | #endif | |
146 | ||
e5ddd4ce AR |
147 | // TODO: Remove this custom dialer and simplify by creating the TcpAcceptor |
148 | // subscription later, inside clientListenerConnectionOpened() callback, just | |
149 | // like htcpOpenPorts(), icpOpenPorts(), and snmpPortOpened() do it. | |
cbff89ba | 150 | /// dials clientListenerConnectionOpened call |
e5ddd4ce AR |
151 | class ListeningStartedDialer: |
152 | public CallDialer, | |
153 | public WithAnswer<Ipc::StartListeningAnswer> | |
fe090a86 AR |
154 | { |
155 | public: | |
fa720bfb AJ |
156 | typedef void (*Handler)(AnyP::PortCfgPointer &portCfg, const Ipc::FdNoteId note, const Subscription::Pointer &sub); |
157 | ListeningStartedDialer(Handler aHandler, AnyP::PortCfgPointer &aPortCfg, const Ipc::FdNoteId note, const Subscription::Pointer &aSub): | |
f53969cc | 158 | handler(aHandler), portCfg(aPortCfg), portTypeNote(note), sub(aSub) {} |
fe090a86 | 159 | |
e5ddd4ce | 160 | /* CallDialer API */ |
337b9aa4 | 161 | void print(std::ostream &os) const override { |
e5ddd4ce | 162 | os << '(' << answer_ << ", " << FdNote(portTypeNote) << " port=" << (void*)&portCfg << ')'; |
5667a628 | 163 | } |
fe090a86 AR |
164 | |
165 | virtual bool canDial(AsyncCall &) const { return true; } | |
8bbb16e3 | 166 | virtual void dial(AsyncCall &) { (handler)(portCfg, portTypeNote, sub); } |
fe090a86 | 167 | |
e5ddd4ce | 168 | /* WithAnswer API */ |
337b9aa4 | 169 | Ipc::StartListeningAnswer &answer() override { return answer_; } |
e5ddd4ce | 170 | |
fe090a86 AR |
171 | public: |
172 | Handler handler; | |
173 | ||
174 | private: | |
e5ddd4ce AR |
175 | // answer_.conn (set/updated by IPC code) is portCfg.listenConn (used by us) |
176 | Ipc::StartListeningAnswer answer_; ///< StartListening() results | |
fa720bfb | 177 | AnyP::PortCfgPointer portCfg; ///< from HttpPortList |
cbff89ba | 178 | Ipc::FdNoteId portTypeNote; ///< Type of IPC socket being opened |
2f8abb64 | 179 | Subscription::Pointer sub; ///< The handler to be subscribed for this connection listener |
fe090a86 AR |
180 | }; |
181 | ||
fa720bfb | 182 | static void clientListenerConnectionOpened(AnyP::PortCfgPointer &s, const Ipc::FdNoteId portTypeNote, const Subscription::Pointer &sub); |
fe090a86 | 183 | |
e0d28505 | 184 | static IOACB httpAccept; |
47f6e231 | 185 | static int clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength); |
50c09fc4 | 186 | |
91369933 AJ |
187 | static void clientUpdateStatHistCounters(const LogTags &logType, int svc_time); |
188 | static void clientUpdateStatCounters(const LogTags &logType); | |
c8be6d7b | 189 | static void clientUpdateHierCounters(HierarchyLogEntry *); |
528b2c61 | 190 | static bool clientPingHasFinished(ping_data const *aPing); |
63ed9e8e | 191 | void prepareLogWithRequestDetails(HttpRequest *, const AccessLogEntryPointer &); |
d3dddfb5 | 192 | static void ClientSocketContextPushDeferredIfNeeded(Http::StreamPointer deferredRequest, ConnStateData * conn); |
c8be6d7b | 193 | |
84cc2635 | 194 | char *skipLeadingSpace(char *aString); |
62e76326 | 195 | |
c8be6d7b | 196 | void |
91369933 | 197 | clientUpdateStatCounters(const LogTags &logType) |
a7c05555 | 198 | { |
e4f1fdae | 199 | ++statCounter.client_http.requests; |
62e76326 | 200 | |
91369933 | 201 | if (logType.isTcpHit()) |
e4f1fdae | 202 | ++statCounter.client_http.hits; |
62e76326 | 203 | |
91369933 | 204 | if (logType.oldType == LOG_TCP_HIT) |
e4f1fdae | 205 | ++statCounter.client_http.disk_hits; |
91369933 | 206 | else if (logType.oldType == LOG_TCP_MEM_HIT) |
e4f1fdae | 207 | ++statCounter.client_http.mem_hits; |
c8be6d7b | 208 | } |
209 | ||
210 | void | |
91369933 | 211 | clientUpdateStatHistCounters(const LogTags &logType, int svc_time) |
c8be6d7b | 212 | { |
e8baef82 | 213 | statCounter.client_http.allSvcTime.count(svc_time); |
63be0a78 | 214 | /** |
ee1679df | 215 | * The idea here is not to be complete, but to get service times |
216 | * for only well-defined types. For example, we don't include | |
1d7ab0f4 | 217 | * LOG_TCP_REFRESH_FAIL because its not really a cache hit |
ee1679df | 218 | * (we *tried* to validate it, but failed). |
219 | */ | |
62e76326 | 220 | |
91369933 | 221 | switch (logType.oldType) { |
62e76326 | 222 | |
1d7ab0f4 | 223 | case LOG_TCP_REFRESH_UNMODIFIED: |
e8baef82 | 224 | statCounter.client_http.nearHitSvcTime.count(svc_time); |
62e76326 | 225 | break; |
226 | ||
787ea68c | 227 | case LOG_TCP_INM_HIT: |
ee1679df | 228 | case LOG_TCP_IMS_HIT: |
e8baef82 | 229 | statCounter.client_http.nearMissSvcTime.count(svc_time); |
62e76326 | 230 | break; |
231 | ||
ee1679df | 232 | case LOG_TCP_HIT: |
62e76326 | 233 | |
ee1679df | 234 | case LOG_TCP_MEM_HIT: |
62e76326 | 235 | |
b540e168 | 236 | case LOG_TCP_OFFLINE_HIT: |
e8baef82 | 237 | statCounter.client_http.hitSvcTime.count(svc_time); |
62e76326 | 238 | break; |
239 | ||
ee1679df | 240 | case LOG_TCP_MISS: |
62e76326 | 241 | |
ee1679df | 242 | case LOG_TCP_CLIENT_REFRESH_MISS: |
e8baef82 | 243 | statCounter.client_http.missSvcTime.count(svc_time); |
62e76326 | 244 | break; |
245 | ||
ee1679df | 246 | default: |
62e76326 | 247 | /* make compiler warnings go away */ |
248 | break; | |
ee1679df | 249 | } |
c8be6d7b | 250 | } |
251 | ||
528b2c61 | 252 | bool |
c8be6d7b | 253 | clientPingHasFinished(ping_data const *aPing) |
254 | { | |
255 | if (0 != aPing->stop.tv_sec && 0 != aPing->start.tv_sec) | |
62e76326 | 256 | return true; |
257 | ||
528b2c61 | 258 | return false; |
c8be6d7b | 259 | } |
260 | ||
261 | void | |
262 | clientUpdateHierCounters(HierarchyLogEntry * someEntry) | |
263 | { | |
264 | ping_data *i; | |
62e76326 | 265 | |
c8547a11 | 266 | switch (someEntry->code) { |
267 | #if USE_CACHE_DIGESTS | |
62e76326 | 268 | |
c8547a11 | 269 | case CD_PARENT_HIT: |
62e76326 | 270 | |
a196e1e4 | 271 | case CD_SIBLING_HIT: |
95dc7ff4 | 272 | ++ statCounter.cd.times_used; |
62e76326 | 273 | break; |
c8547a11 | 274 | #endif |
62e76326 | 275 | |
c8547a11 | 276 | case SIBLING_HIT: |
62e76326 | 277 | |
c8547a11 | 278 | case PARENT_HIT: |
62e76326 | 279 | |
c8547a11 | 280 | case FIRST_PARENT_MISS: |
62e76326 | 281 | |
c8547a11 | 282 | case CLOSEST_PARENT_MISS: |
95dc7ff4 | 283 | ++ statCounter.icp.times_used; |
62e76326 | 284 | i = &someEntry->ping; |
285 | ||
286 | if (clientPingHasFinished(i)) | |
e8baef82 | 287 | statCounter.icp.querySvcTime.count(tvSubUsec(i->start, i->stop)); |
62e76326 | 288 | |
289 | if (i->timeout) | |
95dc7ff4 | 290 | ++ statCounter.icp.query_timeouts; |
62e76326 | 291 | |
292 | break; | |
293 | ||
c8547a11 | 294 | case CLOSEST_PARENT: |
62e76326 | 295 | |
c8547a11 | 296 | case CLOSEST_DIRECT: |
95dc7ff4 | 297 | ++ statCounter.netdb.times_used; |
62e76326 | 298 | |
299 | break; | |
300 | ||
69c95dd3 | 301 | default: |
62e76326 | 302 | break; |
17b6e784 | 303 | } |
a7c05555 | 304 | } |
305 | ||
528b2c61 | 306 | void |
307 | ClientHttpRequest::updateCounters() | |
c8be6d7b | 308 | { |
12f5a662 | 309 | clientUpdateStatCounters(loggingTags()); |
62e76326 | 310 | |
83b053a0 | 311 | if (request->error) |
95dc7ff4 | 312 | ++ statCounter.client_http.errors; |
62e76326 | 313 | |
12f5a662 | 314 | clientUpdateStatHistCounters(loggingTags(), |
af0ded40 | 315 | tvSubMsec(al->cache.start_time, current_time)); |
62e76326 | 316 | |
528b2c61 | 317 | clientUpdateHierCounters(&request->hier); |
c8be6d7b | 318 | } |
319 | ||
edce4d98 | 320 | void |
63ed9e8e | 321 | prepareLogWithRequestDetails(HttpRequest *request, const AccessLogEntryPointer &aLogEntry) |
7a2f978b | 322 | { |
c8be6d7b | 323 | assert(request); |
aee3523a | 324 | assert(aLogEntry != nullptr); |
7684c4b1 | 325 | |
326 | if (Config.onoff.log_mime_hdrs) { | |
7684c4b1 | 327 | MemBuf mb; |
2fe7eff9 | 328 | mb.init(); |
10201568 | 329 | request->header.packInto(&mb); |
105d1937 A |
330 | //This is the request after adaptation or redirection |
331 | aLogEntry->headers.adapted_request = xstrdup(mb.buf); | |
332 | ||
333 | // the virgin request is saved to aLogEntry->request | |
334 | if (aLogEntry->request) { | |
105d1937 | 335 | mb.reset(); |
10201568 | 336 | aLogEntry->request->header.packInto(&mb); |
105d1937 A |
337 | aLogEntry->headers.request = xstrdup(mb.buf); |
338 | } | |
3ff65596 | 339 | |
5038f9d8 AR |
340 | #if USE_ADAPTATION |
341 | const Adaptation::History::Pointer ah = request->adaptLogHistory(); | |
aee3523a | 342 | if (ah != nullptr) { |
5038f9d8 | 343 | mb.reset(); |
10201568 | 344 | ah->lastMeta.packInto(&mb); |
99690f32 | 345 | aLogEntry->adapt.last_meta = xstrdup(mb.buf); |
5038f9d8 | 346 | } |
3ff65596 AR |
347 | #endif |
348 | ||
2fe7eff9 | 349 | mb.clean(); |
7684c4b1 | 350 | } |
351 | ||
3ff65596 | 352 | #if ICAP_CLIENT |
5038f9d8 | 353 | const Adaptation::Icap::History::Pointer ih = request->icapHistory(); |
aee3523a | 354 | if (ih != nullptr) |
01bd87d8 | 355 | ih->processingTime(aLogEntry->icap.processingTime); |
3ff65596 AR |
356 | #endif |
357 | ||
c8be6d7b | 358 | aLogEntry->http.method = request->method; |
359 | aLogEntry->http.version = request->http_ver; | |
c8be6d7b | 360 | aLogEntry->hier = request->hier; |
5b4117d8 | 361 | aLogEntry->cache.extuser = request->extacl_user.termedBuf(); |
abb929f0 | 362 | |
a119c6ad AR |
363 | // Adapted request, if any, inherits and then collects all the stats, but |
364 | // the virgin request gets logged instead; copy the stats to log them. | |
365 | // TODO: avoid losses by keeping these stats in a shared history object? | |
64b66b76 | 366 | if (aLogEntry->request) { |
a119c6ad | 367 | aLogEntry->request->dnsWait = request->dnsWait; |
83b053a0 | 368 | aLogEntry->request->error = request->error; |
64b66b76 | 369 | } |
c8be6d7b | 370 | } |
371 | ||
372 | void | |
528b2c61 | 373 | ClientHttpRequest::logRequest() |
374 | { | |
12f5a662 | 375 | if (!out.size && loggingTags().oldType == LOG_TAG_NONE) |
91369933 | 376 | debugs(33, 5, "logging half-baked transaction: " << log_uri); |
6fd1086a | 377 | |
41ebd397 CT |
378 | al->icp.opcode = ICP_INVALID; |
379 | al->url = log_uri; | |
380 | debugs(33, 9, "clientLogRequest: al.url='" << al->url << "'"); | |
62e76326 | 381 | |
66d51f4f AR |
382 | const auto findReply = [this]() -> const HttpReply * { |
383 | if (al->reply) | |
384 | return al->reply.getRaw(); | |
385 | if (const auto le = loggingEntry()) | |
386 | return le->hasFreshestReply(); | |
387 | return nullptr; | |
388 | }; | |
389 | if (const auto reply = findReply()) { | |
390 | al->http.code = reply->sline.status(); | |
391 | al->http.content_type = reply->content_type.termedBuf(); | |
6fd1086a | 392 | } |
5f8252d2 | 393 | |
41ebd397 | 394 | debugs(33, 9, "clientLogRequest: http.code='" << al->http.code << "'"); |
90a8964c | 395 | |
3a646078 | 396 | if (loggingEntry() && loggingEntry()->mem_obj && loggingEntry()->objectLen() >= 0) |
d6df21d2 | 397 | al->cache.objectSize = loggingEntry()->contentLen(); // payload duplicate ?? with or without TE ? |
90a8964c | 398 | |
cc0ca3b9 | 399 | al->http.clientRequestSz.header = req_sz; |
bd59d61c EB |
400 | // the virgin request is saved to al->request |
401 | if (al->request && al->request->body_pipe) | |
402 | al->http.clientRequestSz.payloadData = al->request->body_pipe->producedSize(); | |
cc0ca3b9 | 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 | |
01bd87d8 | 409 | tvSub(al->cache.trTime, al->cache.start_time, current_time); |
62e76326 | 410 | |
6fd1086a | 411 | if (request) |
41ebd397 | 412 | prepareLogWithRequestDetails(request, al); |
62e76326 | 413 | |
cb4f4424 | 414 | #if USE_OPENSSL && 0 |
62e76326 | 415 | |
6fd1086a AR |
416 | /* This is broken. Fails if the connection has been closed. Needs |
417 | * to snarf the ssl details some place earlier.. | |
418 | */ | |
419 | if (getConn() != NULL) | |
41ebd397 | 420 | al->cache.ssluser = sslGetUserEmail(fd_table[getConn()->fd].ssl); |
62e76326 | 421 | |
a7ad6e4e | 422 | #endif |
62e76326 | 423 | |
f8a2338f | 424 | if (request) { |
75d47340 CT |
425 | SBuf matched; |
426 | for (auto h: Config.notes) { | |
49f57088 | 427 | if (h->match(request, al->reply.getRaw(), al, matched)) { |
75d47340 CT |
428 | request->notes()->add(h->key(), matched); |
429 | debugs(33, 3, h->key() << " " << matched); | |
f8a2338f | 430 | } |
d7f4a0b7 | 431 | } |
75d47340 CT |
432 | // The al->notes and request->notes must point to the same object. |
433 | al->syncNotes(request); | |
d7f4a0b7 | 434 | |
542e1a7a | 435 | HTTPMSGUNLOCK(al->adapted_request); |
8ebad780 CT |
436 | al->adapted_request = request; |
437 | HTTPMSGLOCK(al->adapted_request); | |
438 | } | |
b1c2ea7a | 439 | |
e94ff527 | 440 | ACLFilledChecklist checklist(nullptr, request); |
b1c2ea7a | 441 | checklist.updateAle(al); |
cb365059 | 442 | // no need checklist.syncAle(): already synced |
8ebad780 CT |
443 | accessLogLog(al, &checklist); |
444 | ||
445 | bool updatePerformanceCounters = true; | |
446 | if (Config.accessList.stats_collection) { | |
e94ff527 | 447 | ACLFilledChecklist statsCheck(Config.accessList.stats_collection, request); |
b1c2ea7a | 448 | statsCheck.updateAle(al); |
06bf5384 | 449 | updatePerformanceCounters = statsCheck.fastCheck().allowed(); |
8ebad780 CT |
450 | } |
451 | ||
452 | if (updatePerformanceCounters) { | |
2ae98e09 TH |
453 | if (request) |
454 | updateCounters(); | |
7684c4b1 | 455 | |
aee3523a | 456 | if (getConn() != nullptr && getConn()->clientConnection != nullptr) |
12f5a662 | 457 | clientdbUpdate(getConn()->clientConnection->remote, loggingTags(), AnyP::PROTO_HTTP, out.size); |
7a2f978b | 458 | } |
c8be6d7b | 459 | } |
460 | ||
461 | void | |
528b2c61 | 462 | ClientHttpRequest::freeResources() |
c8be6d7b | 463 | { |
528b2c61 | 464 | safe_free(uri); |
528b2c61 | 465 | safe_free(redirect.location); |
30abd221 | 466 | range_iter.boundary.clean(); |
bec110e4 | 467 | clearRequest(); |
62e76326 | 468 | |
528b2c61 | 469 | if (client_stream.tail) |
62e76326 | 470 | clientStreamAbort((clientStreamNode *)client_stream.tail->data, this); |
c8be6d7b | 471 | } |
472 | ||
473 | void | |
474 | httpRequestFree(void *data) | |
475 | { | |
59a1efb2 | 476 | ClientHttpRequest *http = (ClientHttpRequest *)data; |
aee3523a | 477 | assert(http != nullptr); |
528b2c61 | 478 | delete http; |
7a2f978b | 479 | } |
480 | ||
481 | /* This is a handler normally called by comm_close() */ | |
ced8def3 | 482 | void ConnStateData::connStateClosed(const CommCloseCbParams &) |
7a2f978b | 483 | { |
2b6b1bcb AR |
484 | if (clientConnection) { |
485 | clientConnection->noteClosure(); | |
486 | // keep closed clientConnection for logging, clientdb cleanup, etc. | |
487 | } | |
6e1d409c | 488 | deleteThis("ConnStateData::connStateClosed"); |
a46d2c0e | 489 | } |
62e76326 | 490 | |
cc1e110a AJ |
491 | #if USE_AUTH |
492 | void | |
493 | ConnStateData::setAuth(const Auth::UserRequest::Pointer &aur, const char *by) | |
494 | { | |
aee3523a AR |
495 | if (auth_ == nullptr) { |
496 | if (aur != nullptr) { | |
cc1e110a AJ |
497 | debugs(33, 2, "Adding connection-auth to " << clientConnection << " from " << by); |
498 | auth_ = aur; | |
499 | } | |
500 | return; | |
501 | } | |
502 | ||
503 | // clobered with self-pointer | |
504 | // NP: something nasty is going on in Squid, but harmless. | |
505 | if (aur == auth_) { | |
506 | debugs(33, 2, "WARNING: Ignoring duplicate connection-auth for " << clientConnection << " from " << by); | |
507 | return; | |
508 | } | |
509 | ||
510 | /* | |
511 | * Connection-auth relies on a single set of credentials being preserved | |
512 | * for all requests on a connection once they have been setup. | |
513 | * There are several things which need to happen to preserve security | |
514 | * when connection-auth credentials change unexpectedly or are unset. | |
515 | * | |
516 | * 1) auth helper released from any active state | |
517 | * | |
518 | * They can only be reserved by a handshake process which this | |
519 | * connection can now never complete. | |
520 | * This prevents helpers hanging when their connections close. | |
521 | * | |
522 | * 2) pinning is expected to be removed and server conn closed | |
523 | * | |
524 | * The upstream link is authenticated with the same credentials. | |
525 | * Expecting the same level of consistency we should have received. | |
526 | * This prevents upstream being faced with multiple or missing | |
527 | * credentials after authentication. | |
528 | * NP: un-pin is left to the cleanup in ConnStateData::swanSong() | |
529 | * we just trigger that cleanup here via comm_reset_close() or | |
530 | * ConnStateData::stopReceiving() | |
531 | * | |
532 | * 3) the connection needs to close. | |
533 | * | |
534 | * This prevents attackers injecting requests into a connection, | |
535 | * or gateways wrongly multiplexing users into a single connection. | |
536 | * | |
537 | * When credentials are missing closure needs to follow an auth | |
538 | * challenge for best recovery by the client. | |
539 | * | |
540 | * When credentials change there is nothing we can do but abort as | |
541 | * fast as possible. Sending TCP RST instead of an HTTP response | |
542 | * is the best-case action. | |
543 | */ | |
544 | ||
545 | // clobbered with nul-pointer | |
aee3523a | 546 | if (aur == nullptr) { |
cc1e110a AJ |
547 | debugs(33, 2, "WARNING: Graceful closure on " << clientConnection << " due to connection-auth erase from " << by); |
548 | auth_->releaseAuthServer(); | |
aee3523a | 549 | auth_ = nullptr; |
cc1e110a AJ |
550 | // XXX: need to test whether the connection re-auth challenge is sent. If not, how to trigger it from here. |
551 | // NP: the current situation seems to fix challenge loops in Safari without visible issues in others. | |
552 | // we stop receiving more traffic but can leave the Job running to terminate after the error or challenge is delivered. | |
553 | stopReceiving("connection-auth removed"); | |
554 | return; | |
555 | } | |
556 | ||
557 | // clobbered with alternative credentials | |
558 | if (aur != auth_) { | |
559 | debugs(33, 2, "ERROR: Closing " << clientConnection << " due to change of connection-auth from " << by); | |
560 | auth_->releaseAuthServer(); | |
aee3523a | 561 | auth_ = nullptr; |
cc1e110a AJ |
562 | // this is a fatal type of problem. |
563 | // Close the connection immediately with TCP RST to abort all traffic flow | |
564 | comm_reset_close(clientConnection); | |
565 | return; | |
566 | } | |
567 | ||
568 | /* NOT REACHABLE */ | |
569 | } | |
570 | #endif | |
571 | ||
83b053a0 CT |
572 | void |
573 | ConnStateData::resetReadTimeout(const time_t timeout) | |
574 | { | |
575 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; | |
576 | AsyncCall::Pointer callback = JobCallback(33, 5, TimeoutDialer, this, ConnStateData::requestTimeout); | |
577 | commSetConnTimeout(clientConnection, timeout, callback); | |
578 | } | |
579 | ||
580 | void | |
581 | ConnStateData::extendLifetime() | |
582 | { | |
583 | typedef CommCbMemFunT<ConnStateData, CommTimeoutCbParams> TimeoutDialer; | |
584 | AsyncCall::Pointer callback = JobCallback(5, 4, TimeoutDialer, this, ConnStateData::lifetimeTimeout); | |
585 | commSetConnTimeout(clientConnection, Config.Timeout.lifetime, callback); | |
586 | } | |
587 | ||
6e1d409c | 588 | // cleans up before destructor is called |
a2ac85d9 | 589 | void |
6e1d409c | 590 | ConnStateData::swanSong() |
a46d2c0e | 591 | { |
bf95c10a | 592 | debugs(33, 2, clientConnection); |
da6dbcd1 | 593 | |
f35961af | 594 | flags.readMore = false; |
f53969cc | 595 | clientdbEstablished(clientConnection->remote, -1); /* decrement */ |
83b053a0 CT |
596 | |
597 | terminateAll(ERR_NONE, LogTagsErrors()); | |
598 | checkLogging(); | |
6e1d409c | 599 | |
801cfc26 | 600 | // XXX: Closing pinned conn is too harsh: The Client may want to continue! |
89b1d7a2 | 601 | unpinConnection(true); |
e3a4aecc | 602 | |
83b053a0 | 603 | Server::swanSong(); |
d67acb4e | 604 | |
cc1e110a AJ |
605 | #if USE_AUTH |
606 | // NP: do this bit after closing the connections to avoid side effects from unwanted TCP RST | |
aee3523a | 607 | setAuth(nullptr, "ConnStateData::SwanSong cleanup"); |
cc1e110a AJ |
608 | #endif |
609 | ||
6e1d409c | 610 | flags.swanSang = true; |
a2ac85d9 | 611 | } |
612 | ||
83b053a0 CT |
613 | void |
614 | ConnStateData::callException(const std::exception &ex) | |
615 | { | |
616 | Server::callException(ex); // logs ex and stops the job | |
617 | ||
618 | ErrorDetail::Pointer errorDetail; | |
619 | if (const auto tex = dynamic_cast<const TextException*>(&ex)) | |
620 | errorDetail = new ExceptionErrorDetail(tex->id()); | |
621 | else | |
622 | errorDetail = new ExceptionErrorDetail(Here().id()); | |
623 | updateError(ERR_GATEWAY_FAILURE, errorDetail); | |
624 | } | |
625 | ||
626 | void | |
627 | ConnStateData::updateError(const Error &error) | |
628 | { | |
629 | if (const auto context = pipeline.front()) { | |
630 | const auto http = context->http; | |
631 | assert(http); | |
632 | http->updateError(error); | |
633 | } else { | |
634 | bareError.update(error); | |
635 | } | |
636 | } | |
637 | ||
a2ac85d9 | 638 | bool |
639 | ConnStateData::isOpen() const | |
640 | { | |
10b06767 | 641 | return cbdataReferenceValid(this) && // XXX: checking "this" in a method |
73c36fd9 AJ |
642 | Comm::IsConnOpen(clientConnection) && |
643 | !fd_table[clientConnection->fd].closing(); | |
a2ac85d9 | 644 | } |
645 | ||
646 | ConnStateData::~ConnStateData() | |
647 | { | |
bf95c10a | 648 | debugs(33, 3, clientConnection); |
a2ac85d9 | 649 | |
650 | if (isOpen()) | |
d816f28d | 651 | debugs(33, DBG_IMPORTANT, "ERROR: Squid BUG: ConnStateData did not close " << clientConnection); |
6e1d409c AR |
652 | |
653 | if (!flags.swanSang) | |
d816f28d | 654 | debugs(33, DBG_IMPORTANT, "ERROR: Squid BUG: ConnStateData was not destroyed properly; " << clientConnection); |
62e76326 | 655 | |
aee3523a | 656 | if (bodyPipe != nullptr) |
279152e7 | 657 | stopProducingFor(bodyPipe, false); |
87f237a9 | 658 | |
fcc444e3 AJ |
659 | delete bodyParser; // TODO: pool |
660 | ||
cb4f4424 | 661 | #if USE_OPENSSL |
fd4624d7 | 662 | delete sslServerBump; |
8a7fe008 | 663 | #endif |
7a2f978b | 664 | } |
665 | ||
63be0a78 | 666 | /** |
450fe1cb | 667 | * clientSetKeepaliveFlag() sets request->flags.proxyKeepalive. |
c68e9c6b | 668 | * This is the client-side persistent connection flag. We need |
669 | * to set this relatively early in the request processing | |
670 | * to handle hacks for broken servers and clients. | |
671 | */ | |
92ae4c86 | 672 | void |
59a1efb2 | 673 | clientSetKeepaliveFlag(ClientHttpRequest * http) |
c68e9c6b | 674 | { |
190154cf | 675 | HttpRequest *request = http->request; |
f6329bc3 | 676 | |
7f06a3d8 AJ |
677 | debugs(33, 3, "http_ver = " << request->http_ver); |
678 | debugs(33, 3, "method = " << request->method); | |
62e76326 | 679 | |
4a1acc56 | 680 | // TODO: move to HttpRequest::hdrCacheInit, just like HttpReply. |
e857372a | 681 | request->flags.proxyKeepalive = request->persistent(); |
c68e9c6b | 682 | } |
683 | ||
c8be6d7b | 684 | int |
47f6e231 | 685 | clientIsRequestBodyTooLargeForPolicy(int64_t bodyLength) |
efd900cb | 686 | { |
c8be6d7b | 687 | if (Config.maxRequestBodySize && |
62e76326 | 688 | bodyLength > Config.maxRequestBodySize) |
f53969cc | 689 | return 1; /* too large */ |
62e76326 | 690 | |
efd900cb | 691 | return 0; |
692 | } | |
693 | ||
528b2c61 | 694 | bool |
695 | ClientHttpRequest::multipartRangeRequest() const | |
696 | { | |
697 | return request->multipartRangeRequest(); | |
698 | } | |
699 | ||
4ad60609 | 700 | void |
d6fdeb41 | 701 | clientPackTermBound(String boundary, MemBuf *mb) |
528b2c61 | 702 | { |
4391cd15 | 703 | mb->appendf("\r\n--" SQUIDSTRINGPH "--\r\n", SQUIDSTRINGPRINT(boundary)); |
d6fdeb41 | 704 | debugs(33, 6, "buf offset: " << mb->size); |
528b2c61 | 705 | } |
706 | ||
d6fdeb41 | 707 | void |
a0c227a9 | 708 | clientPackRangeHdr(const HttpReplyPointer &rep, const HttpHdrRangeSpec * spec, String boundary, MemBuf * mb) |
528b2c61 | 709 | { |
75faaa7a | 710 | HttpHeader hdr(hoReply); |
528b2c61 | 711 | assert(rep); |
712 | assert(spec); | |
713 | ||
714 | /* put boundary */ | |
d6fdeb41 | 715 | debugs(33, 5, "appending boundary: " << boundary); |
528b2c61 | 716 | /* rfc2046 requires to _prepend_ boundary with <crlf>! */ |
4391cd15 | 717 | mb->appendf("\r\n--" SQUIDSTRINGPH "\r\n", SQUIDSTRINGPRINT(boundary)); |
528b2c61 | 718 | |
719 | /* stuff the header with required entries and pack it */ | |
62e76326 | 720 | |
789217a2 FC |
721 | if (rep->header.has(Http::HdrType::CONTENT_TYPE)) |
722 | hdr.putStr(Http::HdrType::CONTENT_TYPE, rep->header.getStr(Http::HdrType::CONTENT_TYPE)); | |
62e76326 | 723 | |
528b2c61 | 724 | httpHeaderAddContRange(&hdr, *spec, rep->content_length); |
62e76326 | 725 | |
10201568 | 726 | hdr.packInto(mb); |
519e0948 | 727 | hdr.clean(); |
528b2c61 | 728 | |
729 | /* append <crlf> (we packed a header, not a reply) */ | |
10201568 | 730 | mb->append("\r\n", 2); |
528b2c61 | 731 | } |
732 | ||
63be0a78 | 733 | /** returns expected content length for multi-range replies |
528b2c61 | 734 | * note: assumes that httpHdrRangeCanonize has already been called |
735 | * warning: assumes that HTTP headers for individual ranges at the | |
736 | * time of the actuall assembly will be exactly the same as | |
737 | * the headers when clientMRangeCLen() is called */ | |
7024fb73 AR |
738 | int64_t |
739 | ClientHttpRequest::mRangeCLen() const | |
c8be6d7b | 740 | { |
47f6e231 | 741 | int64_t clen = 0; |
c8be6d7b | 742 | MemBuf mb; |
528b2c61 | 743 | |
86a2f789 | 744 | assert(memObject()); |
528b2c61 | 745 | |
2fe7eff9 | 746 | mb.init(); |
528b2c61 | 747 | HttpHdrRange::iterator pos = request->range->begin(); |
62e76326 | 748 | |
528b2c61 | 749 | while (pos != request->range->end()) { |
62e76326 | 750 | /* account for headers for this range */ |
2fe7eff9 | 751 | mb.reset(); |
66d51f4f | 752 | clientPackRangeHdr(&storeEntry()->mem().freshestReply(), |
62e76326 | 753 | *pos, range_iter.boundary, &mb); |
754 | clen += mb.size; | |
528b2c61 | 755 | |
62e76326 | 756 | /* account for range content */ |
757 | clen += (*pos)->length; | |
528b2c61 | 758 | |
4a7a3d56 | 759 | debugs(33, 6, "clientMRangeCLen: (clen += " << mb.size << " + " << (*pos)->length << ") == " << clen); |
62e76326 | 760 | ++pos; |
528b2c61 | 761 | } |
62e76326 | 762 | |
528b2c61 | 763 | /* account for the terminating boundary */ |
2fe7eff9 | 764 | mb.reset(); |
62e76326 | 765 | |
528b2c61 | 766 | clientPackTermBound(range_iter.boundary, &mb); |
62e76326 | 767 | |
528b2c61 | 768 | clen += mb.size; |
769 | ||
2fe7eff9 | 770 | mb.clean(); |
62e76326 | 771 | |
528b2c61 | 772 | return clen; |
773 | } | |
774 | ||
63be0a78 | 775 | /** |
776 | * generates a "unique" boundary string for multipart responses | |
528b2c61 | 777 | * the caller is responsible for cleaning the string */ |
30abd221 | 778 | String |
528b2c61 | 779 | ClientHttpRequest::rangeBoundaryStr() const |
780 | { | |
528b2c61 | 781 | const char *key; |
c81de627 | 782 | String b(visible_appname_string); |
7dbca7a4 | 783 | b.append(":",1); |
86a2f789 | 784 | key = storeEntry()->getMD5Text(); |
528b2c61 | 785 | b.append(key, strlen(key)); |
786 | return b; | |
787 | } | |
788 | ||
63be0a78 | 789 | /** |
7dc5f514 | 790 | * Write a chunk of data to a client socket. If the reply is present, |
791 | * send the reply headers down the wire too, and clean them up when | |
792 | * finished. | |
9e008dda | 793 | * Pre-condition: |
edce4d98 | 794 | * The request is one backed by a connection, not an internal request. |
795 | * data context is not NULL | |
796 | * There are no more entries in the stream chain. | |
2246b732 | 797 | */ |
92ae4c86 | 798 | void |
59a1efb2 | 799 | clientSocketRecipient(clientStreamNode * node, ClientHttpRequest * http, |
2324cda2 | 800 | HttpReply * rep, StoreIOBuffer receivedData) |
edce4d98 | 801 | { |
61beade2 | 802 | // do not try to deliver if client already ABORTED |
51571330 AJ |
803 | if (!http->getConn() || !cbdataReferenceValid(http->getConn()) || !Comm::IsConnOpen(http->getConn()->clientConnection)) |
804 | return; | |
805 | ||
edce4d98 | 806 | /* Test preconditions */ |
aee3523a | 807 | assert(node != nullptr); |
62e76326 | 808 | /* TODO: handle this rather than asserting |
9e008dda AJ |
809 | * - it should only ever happen if we cause an abort and |
810 | * the callback chain loops back to here, so we can simply return. | |
811 | * However, that itself shouldn't happen, so it stays as an assert for now. | |
edce4d98 | 812 | */ |
813 | assert(cbdataReferenceValid(node)); | |
aee3523a | 814 | assert(node->node.next == nullptr); |
d3dddfb5 | 815 | Http::StreamPointer context = dynamic_cast<Http::Stream *>(node->data.getRaw()); |
aee3523a | 816 | assert(context != nullptr); |
5c336a3b | 817 | |
528b2c61 | 818 | /* TODO: check offset is what we asked for */ |
62e76326 | 819 | |
efd5e784 AJ |
820 | // TODO: enforces HTTP/1 MUST on pipeline order, but is irrelevant to HTTP/2 |
821 | if (context != http->getConn()->pipeline.front()) | |
2324cda2 | 822 | context->deferRecipientForLater(node, rep, receivedData); |
24e1fd72 CT |
823 | else if (http->getConn()->cbControlMsgSent) // 1xx to the user is pending |
824 | context->deferRecipientForLater(node, rep, receivedData); | |
92ae4c86 AR |
825 | else |
826 | http->getConn()->handleReply(rep, receivedData); | |
edce4d98 | 827 | } |
828 | ||
63be0a78 | 829 | /** |
830 | * Called when a downstream node is no longer interested in | |
edce4d98 | 831 | * our data. As we are a terminal node, this means on aborts |
832 | * only | |
833 | */ | |
834 | void | |
59a1efb2 | 835 | clientSocketDetach(clientStreamNode * node, ClientHttpRequest * http) |
edce4d98 | 836 | { |
edce4d98 | 837 | /* Test preconditions */ |
aee3523a | 838 | assert(node != nullptr); |
62e76326 | 839 | /* TODO: handle this rather than asserting |
9e008dda AJ |
840 | * - it should only ever happen if we cause an abort and |
841 | * the callback chain loops back to here, so we can simply return. | |
edce4d98 | 842 | * However, that itself shouldn't happen, so it stays as an assert for now. |
843 | */ | |
844 | assert(cbdataReferenceValid(node)); | |
845 | /* Set null by ContextFree */ | |
aee3523a | 846 | assert(node->node.next == nullptr); |
0655fa4d | 847 | /* this is the assert discussed above */ |
aee3523a | 848 | assert(nullptr == dynamic_cast<Http::Stream *>(node->data.getRaw())); |
edce4d98 | 849 | /* We are only called when the client socket shutsdown. |
850 | * Tell the prev pipeline member we're finished | |
851 | */ | |
852 | clientStreamDetach(node, http); | |
7a2f978b | 853 | } |
854 | ||
c8be6d7b | 855 | void |
a46d2c0e | 856 | ConnStateData::readNextRequest() |
c8be6d7b | 857 | { |
bf95c10a | 858 | debugs(33, 5, clientConnection << " reading next req"); |
bf8fe701 | 859 | |
97b32442 | 860 | fd_note(clientConnection->fd, "Idle client: Waiting for next request"); |
63be0a78 | 861 | /** |
5ddf7edc | 862 | * Set the timeout BEFORE calling readSomeData(). |
c8be6d7b | 863 | */ |
83b053a0 | 864 | resetReadTimeout(clientConnection->timeLeft(idleTimeout())); |
1cf238db | 865 | |
a46d2c0e | 866 | readSomeData(); |
63be0a78 | 867 | /** Please don't do anything with the FD past here! */ |
c8be6d7b | 868 | } |
869 | ||
09d3938c | 870 | static void |
d3dddfb5 | 871 | ClientSocketContextPushDeferredIfNeeded(Http::StreamPointer deferredRequest, ConnStateData * conn) |
c8be6d7b | 872 | { |
bf95c10a | 873 | debugs(33, 2, conn->clientConnection << " Sending next"); |
bf8fe701 | 874 | |
63be0a78 | 875 | /** If the client stream is waiting on a socket write to occur, then */ |
62e76326 | 876 | |
c8be6d7b | 877 | if (deferredRequest->flags.deferred) { |
63be0a78 | 878 | /** NO data is allowed to have been sent. */ |
62e76326 | 879 | assert(deferredRequest->http->out.size == 0); |
63be0a78 | 880 | /** defer now. */ |
62e76326 | 881 | clientSocketRecipient(deferredRequest->deferredparams.node, |
882 | deferredRequest->http, | |
883 | deferredRequest->deferredparams.rep, | |
884 | deferredRequest->deferredparams.queuedBuffer); | |
c8be6d7b | 885 | } |
62e76326 | 886 | |
63be0a78 | 887 | /** otherwise, the request is still active in a callbacksomewhere, |
c8be6d7b | 888 | * and we are done |
f4f278b5 | 889 | */ |
f4f278b5 | 890 | } |
891 | ||
0655fa4d | 892 | void |
f4a53cf7 | 893 | ConnStateData::kick() |
1a92a1e2 | 894 | { |
4a4fbcef AJ |
895 | if (!Comm::IsConnOpen(clientConnection)) { |
896 | debugs(33, 2, clientConnection << " Connection was closed"); | |
897 | return; | |
898 | } | |
0655fa4d | 899 | |
f4a53cf7 AJ |
900 | if (pinning.pinned && !Comm::IsConnOpen(pinning.serverConnection)) { |
901 | debugs(33, 2, clientConnection << " Connection was pinned but server side gone. Terminating client connection"); | |
902 | clientConnection->close(); | |
d67acb4e AJ |
903 | return; |
904 | } | |
905 | ||
cf6eb29e CT |
906 | /** \par |
907 | * We are done with the response, and we are either still receiving request | |
908 | * body (early response!) or have already stopped receiving anything. | |
909 | * | |
5da786ef | 910 | * If we are still receiving, then parseRequests() below will fail. |
cf6eb29e CT |
911 | * (XXX: but then we will call readNextRequest() which may succeed and |
912 | * execute a smuggled request as we are not done with the current request). | |
913 | * | |
914 | * If we stopped because we got everything, then try the next request. | |
915 | * | |
916 | * If we stopped receiving because of an error, then close now to avoid | |
917 | * getting stuck and to prevent accidental request smuggling. | |
918 | */ | |
919 | ||
f4a53cf7 AJ |
920 | if (const char *reason = stoppedReceiving()) { |
921 | debugs(33, 3, "closing for earlier request error: " << reason); | |
922 | clientConnection->close(); | |
cf6eb29e CT |
923 | return; |
924 | } | |
925 | ||
63be0a78 | 926 | /** \par |
f900210a | 927 | * Attempt to parse a request from the request buffer. |
928 | * If we've been fed a pipelined request it may already | |
929 | * be in our read buffer. | |
f900210a | 930 | */ |
931 | ||
5da786ef | 932 | parseRequests(); |
f900210a | 933 | |
5da786ef | 934 | if (!isOpen()) |
f900210a | 935 | return; |
f900210a | 936 | |
63be0a78 | 937 | /** \par |
f900210a | 938 | * At this point we either have a parsed request (which we've |
939 | * kicked off the processing for) or not. If we have a deferred | |
940 | * request (parsed but deferred for pipeling processing reasons) | |
941 | * then look at processing it. If not, simply kickstart | |
942 | * another read. | |
943 | */ | |
d3dddfb5 | 944 | Http::StreamPointer deferredRequest = pipeline.front(); |
efd5e784 | 945 | if (deferredRequest != nullptr) { |
f4a53cf7 AJ |
946 | debugs(33, 3, clientConnection << ": calling PushDeferredIfNeeded"); |
947 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, this); | |
948 | } else if (flags.readMore) { | |
949 | debugs(33, 3, clientConnection << ": calling readNextRequest()"); | |
950 | readNextRequest(); | |
f35961af AR |
951 | } else { |
952 | // XXX: Can this happen? CONNECT tunnels have deferredRequest set. | |
f4a53cf7 | 953 | debugs(33, DBG_IMPORTANT, MYNAME << "abandoning " << clientConnection); |
f900210a | 954 | } |
1a92a1e2 | 955 | } |
956 | ||
cf6eb29e CT |
957 | void |
958 | ConnStateData::stopSending(const char *error) | |
959 | { | |
bf95c10a | 960 | debugs(33, 4, "sending error (" << clientConnection << "): " << error << |
cf6eb29e CT |
961 | "; old receiving error: " << |
962 | (stoppedReceiving() ? stoppedReceiving_ : "none")); | |
fc68f6b1 | 963 | |
cf6eb29e | 964 | if (const char *oldError = stoppedSending()) { |
bf95c10a | 965 | debugs(33, 3, "already stopped sending: " << oldError); |
cf6eb29e CT |
966 | return; // nothing has changed as far as this connection is concerned |
967 | } | |
968 | stoppedSending_ = error; | |
fc68f6b1 | 969 | |
cf6eb29e CT |
970 | if (!stoppedReceiving()) { |
971 | if (const int64_t expecting = mayNeedToReadMoreBody()) { | |
bf95c10a | 972 | debugs(33, 5, "must still read " << expecting << |
fcc444e3 | 973 | " request body bytes with " << inBuf.length() << " unused"); |
cf6eb29e | 974 | return; // wait for the request receiver to finish reading |
3b299123 | 975 | } |
55e44db9 | 976 | } |
977 | ||
cf6eb29e | 978 | clientConnection->close(); |
55e44db9 | 979 | } |
980 | ||
0655fa4d | 981 | void |
21cd3227 AJ |
982 | ConnStateData::afterClientWrite(size_t size) |
983 | { | |
984 | if (pipeline.empty()) | |
985 | return; | |
986 | ||
d6fdeb41 AJ |
987 | auto ctx = pipeline.front(); |
988 | if (size) { | |
989 | statCounter.client_http.kbytes_out += size; | |
12f5a662 | 990 | if (ctx->http->loggingTags().isTcpHit()) |
d6fdeb41 | 991 | statCounter.client_http.hit_kbytes_out += size; |
7a2f978b | 992 | } |
d6fdeb41 | 993 | ctx->writeComplete(size); |
7a2f978b | 994 | } |
995 | ||
d3dddfb5 | 996 | Http::Stream * |
eacfca83 | 997 | ConnStateData::abortRequestParsing(const char *const uri) |
038eb4ed | 998 | { |
eacfca83 | 999 | ClientHttpRequest *http = new ClientHttpRequest(this); |
fcc444e3 | 1000 | http->req_sz = inBuf.length(); |
bec110e4 | 1001 | http->setErrorUri(uri); |
d3dddfb5 | 1002 | auto *context = new Http::Stream(clientConnection, http); |
942b1c39 AJ |
1003 | StoreIOBuffer tempBuffer; |
1004 | tempBuffer.data = context->reqbuf; | |
1005 | tempBuffer.length = HTTP_REQBUF_SZ; | |
edce4d98 | 1006 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1007 | clientReplyStatus, new clientReplyContext(http), clientSocketRecipient, |
942b1c39 | 1008 | clientSocketDetach, context, tempBuffer); |
edce4d98 | 1009 | return context; |
038eb4ed | 1010 | } |
1011 | ||
d442618d AJ |
1012 | void |
1013 | ConnStateData::startShutdown() | |
1014 | { | |
1015 | // RegisteredRunner API callback - Squid has been shut down | |
1016 | ||
1017 | // if connection is idle terminate it now, | |
1018 | // otherwise wait for grace period to end | |
e500cc89 | 1019 | if (pipeline.empty()) |
d442618d AJ |
1020 | endingShutdown(); |
1021 | } | |
1022 | ||
1023 | void | |
1024 | ConnStateData::endingShutdown() | |
1025 | { | |
1026 | // RegisteredRunner API callback - Squid shutdown grace period is over | |
1027 | ||
1028 | // force the client connection to close immediately | |
1029 | // swanSong() in the close handler will cleanup. | |
1030 | if (Comm::IsConnOpen(clientConnection)) | |
1031 | clientConnection->close(); | |
d442618d AJ |
1032 | } |
1033 | ||
c8be6d7b | 1034 | char * |
1035 | skipLeadingSpace(char *aString) | |
1036 | { | |
1037 | char *result = aString; | |
62e76326 | 1038 | |
c8be6d7b | 1039 | while (xisspace(*aString)) |
62e76326 | 1040 | ++aString; |
1041 | ||
c8be6d7b | 1042 | return result; |
1043 | } | |
1044 | ||
63be0a78 | 1045 | /** |
d4a04ed5 | 1046 | * 'end' defaults to NULL for backwards compatibility |
1047 | * remove default value if we ever get rid of NULL-terminated | |
1048 | * request buffers. | |
1049 | */ | |
1050 | const char * | |
1051 | findTrailingHTTPVersion(const char *uriAndHTTPVersion, const char *end) | |
c8be6d7b | 1052 | { |
aee3523a | 1053 | if (nullptr == end) { |
d4a04ed5 | 1054 | end = uriAndHTTPVersion + strcspn(uriAndHTTPVersion, "\r\n"); |
1055 | assert(end); | |
1056 | } | |
62e76326 | 1057 | |
5e263176 | 1058 | for (; end > uriAndHTTPVersion; --end) { |
d4a04ed5 | 1059 | if (*end == '\n' || *end == '\r') |
62e76326 | 1060 | continue; |
1061 | ||
d4a04ed5 | 1062 | if (xisspace(*end)) { |
1063 | if (strncasecmp(end + 1, "HTTP/", 5) == 0) | |
1064 | return end + 1; | |
62e76326 | 1065 | else |
1066 | break; | |
1067 | } | |
c8be6d7b | 1068 | } |
62e76326 | 1069 | |
aee3523a | 1070 | return nullptr; |
c8be6d7b | 1071 | } |
1072 | ||
0a57a661 CT |
1073 | static char * |
1074 | prepareAcceleratedURL(ConnStateData * conn, const Http1::RequestParserPointer &hp) | |
62e76326 | 1075 | { |
3f38a55e | 1076 | int vhost = conn->port->vhost; |
1077 | int vport = conn->port->vport; | |
9ff1b8ca | 1078 | static char ipbuf[MAX_IPSTRLEN]; |
c8be6d7b | 1079 | |
3f38a55e | 1080 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
c8be6d7b | 1081 | |
b1cef121 | 1082 | // XXX: re-use proper URL parser for this |
9bafa70d | 1083 | SBuf url = hp->requestUri(); // use full provided URI if we abort |
b1cef121 AJ |
1084 | do { // use a loop so we can break out of it |
1085 | ::Parser::Tokenizer tok(url); | |
f9688132 | 1086 | if (tok.skip('/')) // origin-form URL already. |
b1cef121 AJ |
1087 | break; |
1088 | ||
62e76326 | 1089 | if (conn->port->vhost) |
0a57a661 | 1090 | return nullptr; /* already in good shape */ |
62e76326 | 1091 | |
b1cef121 | 1092 | // skip the URI scheme |
9bafa70d | 1093 | static const CharacterSet uriScheme = CharacterSet("URI-scheme","+-.") + CharacterSet::ALPHA + CharacterSet::DIGIT; |
b1cef121 | 1094 | static const SBuf uriSchemeEnd("://"); |
9bafa70d | 1095 | if (!tok.skipAll(uriScheme) || !tok.skip(uriSchemeEnd)) |
b1cef121 | 1096 | break; |
62e76326 | 1097 | |
b1cef121 AJ |
1098 | // skip the authority segment |
1099 | // RFC 3986 complex nested ABNF for "authority" boils down to this: | |
1100 | static const CharacterSet authority = CharacterSet("authority","-._~%:@[]!$&'()*+,;=") + | |
f53969cc | 1101 | CharacterSet::HEXDIG + CharacterSet::ALPHA + CharacterSet::DIGIT; |
9bafa70d | 1102 | if (!tok.skipAll(authority)) |
b1cef121 | 1103 | break; |
62e76326 | 1104 | |
63ccea28 | 1105 | static const SBuf slashUri("/"); |
83e3a594 | 1106 | const SBuf t = tok.remaining(); |
b1cef121 | 1107 | if (t.isEmpty()) |
63ccea28 | 1108 | url = slashUri; |
b1cef121 AJ |
1109 | else if (t[0]=='/') // looks like path |
1110 | url = t; | |
1111 | else if (t[0]=='?' || t[0]=='#') { // looks like query or fragment. fix '/' | |
63ccea28 | 1112 | url = slashUri; |
b1cef121 AJ |
1113 | url.append(t); |
1114 | } // else do nothing. invalid path | |
62e76326 | 1115 | |
b1cef121 | 1116 | } while(false); |
62e76326 | 1117 | |
b1cef121 AJ |
1118 | #if SHOULD_REJECT_UNKNOWN_URLS |
1119 | // reject URI which are not well-formed even after the processing above | |
f9688132 | 1120 | if (url.isEmpty() || url[0] != '/') { |
f1d5359e | 1121 | hp->parseStatusCode = Http::scBadRequest; |
943cdf6d | 1122 | return conn->abortRequestParsing("error:invalid-request"); |
3f38a55e | 1123 | } |
b1cef121 | 1124 | #endif |
3f38a55e | 1125 | |
5463e4b9 | 1126 | if (vport < 0) |
0a57a661 | 1127 | vport = conn->clientConnection->local.port(); |
5463e4b9 | 1128 | |
8df30f0b GV |
1129 | char *receivedHost = nullptr; |
1130 | if (vhost && (receivedHost = hp->getHostHeaderField())) { | |
1131 | SBuf host(receivedHost); | |
5463e4b9 | 1132 | debugs(33, 5, "ACCEL VHOST REWRITE: vhost=" << host << " + vport=" << vport); |
5463e4b9 | 1133 | if (vport > 0) { |
8df30f0b GV |
1134 | // remove existing :port (if any), cope with IPv6+ without port |
1135 | const auto lastColonPos = host.rfind(':'); | |
1136 | if (lastColonPos != SBuf::npos && *host.rbegin() != ']') { | |
1137 | host.chop(0, lastColonPos); // truncate until the last colon | |
5463e4b9 | 1138 | } |
8df30f0b | 1139 | host.appendf(":%d", vport); |
5463e4b9 | 1140 | } // else nothing to alter port-wise. |
d31d59d8 | 1141 | const SBuf &scheme = AnyP::UriScheme(conn->transferProtocol.protocol).image(); |
8df30f0b | 1142 | const auto url_sz = scheme.length() + host.length() + url.length() + 32; |
0a57a661 | 1143 | char *uri = static_cast<char *>(xcalloc(url_sz, 1)); |
8df30f0b | 1144 | snprintf(uri, url_sz, SQUIDSBUFPH "://" SQUIDSBUFPH SQUIDSBUFPH, SQUIDSBUFPRINT(scheme), SQUIDSBUFPRINT(host), SQUIDSBUFPRINT(url)); |
0a57a661 CT |
1145 | debugs(33, 5, "ACCEL VHOST REWRITE: " << uri); |
1146 | return uri; | |
5463e4b9 AJ |
1147 | } else if (conn->port->defaultsite /* && !vhost */) { |
1148 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: defaultsite=" << conn->port->defaultsite << " + vport=" << vport); | |
5463e4b9 AJ |
1149 | char vportStr[32]; |
1150 | vportStr[0] = '\0'; | |
1151 | if (vport > 0) { | |
1152 | snprintf(vportStr, sizeof(vportStr),":%d",vport); | |
1153 | } | |
d31d59d8 | 1154 | const SBuf &scheme = AnyP::UriScheme(conn->transferProtocol.protocol).image(); |
0a57a661 CT |
1155 | const int url_sz = scheme.length() + strlen(conn->port->defaultsite) + sizeof(vportStr) + url.length() + 32; |
1156 | char *uri = static_cast<char *>(xcalloc(url_sz, 1)); | |
1157 | snprintf(uri, url_sz, SQUIDSBUFPH "://%s%s" SQUIDSBUFPH, | |
d31d59d8 | 1158 | SQUIDSBUFPRINT(scheme), conn->port->defaultsite, vportStr, SQUIDSBUFPRINT(url)); |
0a57a661 CT |
1159 | debugs(33, 5, "ACCEL DEFAULTSITE REWRITE: " << uri); |
1160 | return uri; | |
5463e4b9 | 1161 | } else if (vport > 0 /* && (!vhost || no Host:) */) { |
3cc0f4e7 | 1162 | debugs(33, 5, "ACCEL VPORT REWRITE: *_port IP + vport=" << vport); |
5463e4b9 | 1163 | /* Put the local socket IP address as the hostname, with whatever vport we found */ |
0a57a661 | 1164 | conn->clientConnection->local.toHostStr(ipbuf,MAX_IPSTRLEN); |
d31d59d8 | 1165 | const SBuf &scheme = AnyP::UriScheme(conn->transferProtocol.protocol).image(); |
0a57a661 CT |
1166 | const int url_sz = scheme.length() + sizeof(ipbuf) + url.length() + 32; |
1167 | char *uri = static_cast<char *>(xcalloc(url_sz, 1)); | |
1168 | snprintf(uri, url_sz, SQUIDSBUFPH "://%s:%d" SQUIDSBUFPH, | |
d31d59d8 | 1169 | SQUIDSBUFPRINT(scheme), ipbuf, vport, SQUIDSBUFPRINT(url)); |
0a57a661 CT |
1170 | debugs(33, 5, "ACCEL VPORT REWRITE: " << uri); |
1171 | return uri; | |
3f38a55e | 1172 | } |
0a57a661 CT |
1173 | |
1174 | return nullptr; | |
3f38a55e | 1175 | } |
1176 | ||
0a57a661 CT |
1177 | static char * |
1178 | buildUrlFromHost(ConnStateData * conn, const Http1::RequestParserPointer &hp) | |
62e76326 | 1179 | { |
0a57a661 | 1180 | char *uri = nullptr; |
3f38a55e | 1181 | /* BUG: Squid cannot deal with '*' URLs (RFC2616 5.1.2) */ |
2a51e34e | 1182 | if (const char *host = hp->getHostHeaderField()) { |
d31d59d8 | 1183 | const SBuf &scheme = AnyP::UriScheme(conn->transferProtocol.protocol).image(); |
0a57a661 CT |
1184 | const int url_sz = scheme.length() + strlen(host) + hp->requestUri().length() + 32; |
1185 | uri = static_cast<char *>(xcalloc(url_sz, 1)); | |
1186 | snprintf(uri, url_sz, SQUIDSBUFPH "://%s" SQUIDSBUFPH, | |
1187 | SQUIDSBUFPRINT(scheme), | |
1188 | host, | |
1189 | SQUIDSBUFPRINT(hp->requestUri())); | |
1190 | } | |
1191 | return uri; | |
1192 | } | |
1193 | ||
1194 | char * | |
1195 | ConnStateData::prepareTlsSwitchingURL(const Http1::RequestParserPointer &hp) | |
1196 | { | |
1197 | Must(switchedToHttps()); | |
1198 | ||
1199 | if (!hp->requestUri().isEmpty() && hp->requestUri()[0] != '/') | |
1200 | return nullptr; /* already in good shape */ | |
1201 | ||
1202 | char *uri = buildUrlFromHost(this, hp); | |
1203 | #if USE_OPENSSL | |
1204 | if (!uri) { | |
1205 | Must(tlsConnectPort); | |
9ce4a1eb | 1206 | Must(!tlsConnectHostOrIp.isEmpty()); |
0a57a661 CT |
1207 | SBuf useHost; |
1208 | if (!tlsClientSni().isEmpty()) | |
1209 | useHost = tlsClientSni(); | |
1210 | else | |
9ce4a1eb | 1211 | useHost = tlsConnectHostOrIp; |
0a57a661 CT |
1212 | |
1213 | const SBuf &scheme = AnyP::UriScheme(transferProtocol.protocol).image(); | |
1214 | const int url_sz = scheme.length() + useHost.length() + hp->requestUri().length() + 32; | |
1215 | uri = static_cast<char *>(xcalloc(url_sz, 1)); | |
380b09ae | 1216 | snprintf(uri, url_sz, SQUIDSBUFPH "://" SQUIDSBUFPH ":%hu" SQUIDSBUFPH, |
0a57a661 CT |
1217 | SQUIDSBUFPRINT(scheme), |
1218 | SQUIDSBUFPRINT(useHost), | |
380b09ae | 1219 | *tlsConnectPort, |
0a57a661 CT |
1220 | SQUIDSBUFPRINT(hp->requestUri())); |
1221 | } | |
1222 | #endif | |
1223 | if (uri) | |
1224 | debugs(33, 5, "TLS switching host rewrite: " << uri); | |
1225 | return uri; | |
1226 | } | |
1227 | ||
1228 | static char * | |
1229 | prepareTransparentURL(ConnStateData * conn, const Http1::RequestParserPointer &hp) | |
1230 | { | |
1231 | // TODO Must() on URI !empty when the parser supports throw. For now avoid assert(). | |
1232 | if (!hp->requestUri().isEmpty() && hp->requestUri()[0] != '/') | |
1233 | return nullptr; /* already in good shape */ | |
1234 | ||
1235 | char *uri = buildUrlFromHost(conn, hp); | |
1236 | if (!uri) { | |
62e76326 | 1237 | /* Put the local socket IP address as the hostname. */ |
f9688132 | 1238 | static char ipbuf[MAX_IPSTRLEN]; |
0a57a661 CT |
1239 | conn->clientConnection->local.toHostStr(ipbuf,MAX_IPSTRLEN); |
1240 | const SBuf &scheme = AnyP::UriScheme(conn->transferProtocol.protocol).image(); | |
1241 | const int url_sz = sizeof(ipbuf) + hp->requestUri().length() + 32; | |
1242 | uri = static_cast<char *>(xcalloc(url_sz, 1)); | |
1243 | snprintf(uri, url_sz, SQUIDSBUFPH "://%s:%d" SQUIDSBUFPH, | |
d31d59d8 | 1244 | SQUIDSBUFPRINT(scheme), |
0a57a661 | 1245 | ipbuf, conn->clientConnection->local.port(), SQUIDSBUFPRINT(hp->requestUri())); |
c8be6d7b | 1246 | } |
0a57a661 CT |
1247 | |
1248 | if (uri) | |
1249 | debugs(33, 5, "TRANSPARENT REWRITE: " << uri); | |
1250 | return uri; | |
c8be6d7b | 1251 | } |
1252 | ||
d3dddfb5 | 1253 | Http::Stream * |
9ce4a1eb | 1254 | ConnStateData::parseHttpRequest(const Http1::RequestParserPointer &hp) |
7a2f978b | 1255 | { |
87abd755 AJ |
1256 | /* Attempt to parse the first line; this will define where the method, url, version and header begin */ |
1257 | { | |
9ce4a1eb CT |
1258 | Must(hp); |
1259 | ||
1260 | if (preservingClientData_) | |
1261 | preservedClientData = inBuf; | |
1262 | ||
1263 | const bool parsedOk = hp->parse(inBuf); | |
fc68f6b1 | 1264 | |
36a9c964 | 1265 | // sync the buffers after parsing. |
9ce4a1eb | 1266 | inBuf = hp->remaining(); |
7a4fa6a0 | 1267 | |
9bafa70d | 1268 | if (hp->needsMoreData()) { |
87abd755 | 1269 | debugs(33, 5, "Incomplete request, waiting for end of request line"); |
aee3523a | 1270 | return nullptr; |
87abd755 | 1271 | } |
fc68f6b1 | 1272 | |
016a316b | 1273 | if (!parsedOk) { |
fc10bc7d AR |
1274 | const bool tooBig = |
1275 | hp->parseStatusCode == Http::scRequestHeaderFieldsTooLarge || | |
1276 | hp->parseStatusCode == Http::scUriTooLong; | |
9ce4a1eb | 1277 | auto result = abortRequestParsing( |
a70e75b7 | 1278 | tooBig ? "error:request-too-large" : "error:invalid-request"); |
fc10bc7d | 1279 | // assume that remaining leftovers belong to this bad request |
9ce4a1eb CT |
1280 | if (!inBuf.isEmpty()) |
1281 | consumeInput(inBuf.length()); | |
fc10bc7d | 1282 | return result; |
016a316b | 1283 | } |
84cc2635 | 1284 | } |
fc68f6b1 | 1285 | |
6d0613b2 | 1286 | /* We know the whole request is in parser now */ |
9ce4a1eb | 1287 | debugs(11, 2, "HTTP Client " << clientConnection); |
6d0613b2 | 1288 | debugs(11, 2, "HTTP Client REQUEST:\n---------\n" << |
9bafa70d AJ |
1289 | hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol() << "\n" << |
1290 | hp->mimeHeader() << | |
6d0613b2 | 1291 | "\n----------"); |
fc68f6b1 | 1292 | |
adf29627 | 1293 | /* deny CONNECT via accelerated ports */ |
aee3523a | 1294 | if (hp->method() == Http::METHOD_CONNECT && port != nullptr && port->flags.accelSurrogate) { |
9ce4a1eb | 1295 | debugs(33, DBG_IMPORTANT, "WARNING: CONNECT method received on " << transferProtocol << " Accelerator port " << port->s.port()); |
9bafa70d | 1296 | debugs(33, DBG_IMPORTANT, "WARNING: for request: " << hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol()); |
f1d5359e | 1297 | hp->parseStatusCode = Http::scMethodNotAllowed; |
9ce4a1eb | 1298 | return abortRequestParsing("error:method-not-allowed"); |
adf29627 AJ |
1299 | } |
1300 | ||
25237905 | 1301 | /* HTTP/2 connection magic prefix starts with "PRI ". |
5de5c2d0 AJ |
1302 | * Deny "PRI" method if used in HTTP/1.x or 0.9 versions. |
1303 | * If seen it signals a broken client or proxy has corrupted the traffic. | |
1304 | */ | |
1305 | if (hp->method() == Http::METHOD_PRI && hp->messageProtocol() < Http::ProtocolVersion(2,0)) { | |
9ce4a1eb | 1306 | debugs(33, DBG_IMPORTANT, "WARNING: PRI method received on " << transferProtocol << " port " << port->s.port()); |
5de5c2d0 | 1307 | debugs(33, DBG_IMPORTANT, "WARNING: for request: " << hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol()); |
093c6381 | 1308 | hp->parseStatusCode = Http::scMethodNotAllowed; |
9ce4a1eb | 1309 | return abortRequestParsing("error:method-not-allowed"); |
5de5c2d0 AJ |
1310 | } |
1311 | ||
9bafa70d AJ |
1312 | if (hp->method() == Http::METHOD_NONE) { |
1313 | debugs(33, DBG_IMPORTANT, "WARNING: Unsupported method: " << hp->method() << " " << hp->requestUri() << " " << hp->messageProtocol()); | |
f1d5359e | 1314 | hp->parseStatusCode = Http::scMethodNotAllowed; |
9ce4a1eb | 1315 | return abortRequestParsing("error:unsupported-request-method"); |
3f38a55e | 1316 | } |
7a2f978b | 1317 | |
6d0613b2 AJ |
1318 | // Process headers after request line |
1319 | debugs(33, 3, "complete request received. " << | |
9bafa70d AJ |
1320 | "prefix_sz = " << hp->messageHeaderSize() << |
1321 | ", request-line-size=" << hp->firstLineSize() << | |
1322 | ", mime-header-size=" << hp->headerBlockSize() << | |
1323 | ", mime header block:\n" << hp->mimeHeader() << "\n----------"); | |
62e76326 | 1324 | |
7a2f978b | 1325 | /* Ok, all headers are received */ |
9ce4a1eb | 1326 | ClientHttpRequest *http = new ClientHttpRequest(this); |
9ff1b8ca | 1327 | |
9bafa70d | 1328 | http->req_sz = hp->messageHeaderSize(); |
9ce4a1eb | 1329 | Http::Stream *result = new Http::Stream(clientConnection, http); |
62e76326 | 1330 | |
942b1c39 AJ |
1331 | StoreIOBuffer tempBuffer; |
1332 | tempBuffer.data = result->reqbuf; | |
1333 | tempBuffer.length = HTTP_REQBUF_SZ; | |
1334 | ||
0655fa4d | 1335 | ClientStreamData newServer = new clientReplyContext(http); |
0655fa4d | 1336 | ClientStreamData newClient = result; |
edce4d98 | 1337 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, |
0655fa4d | 1338 | clientReplyStatus, newServer, clientSocketRecipient, |
942b1c39 | 1339 | clientSocketDetach, newClient, tempBuffer); |
62e76326 | 1340 | |
3ff65596 | 1341 | /* set url */ |
450e09f9 | 1342 | debugs(33,5, "Prepare absolute URL from " << |
9ce4a1eb | 1343 | (transparent()?"intercept":(port->flags.accelSurrogate ? "accel":""))); |
3f38a55e | 1344 | /* Rewrite the URL in transparent or accelerator mode */ |
89272111 AJ |
1345 | /* NP: there are several cases to traverse here: |
1346 | * - standard mode (forward proxy) | |
1347 | * - transparent mode (TPROXY) | |
1348 | * - transparent mode with failures | |
1349 | * - intercept mode (NAT) | |
1350 | * - intercept mode with failures | |
1351 | * - accelerator mode (reverse proxy) | |
51b5dcf5 | 1352 | * - internal relative-URL |
89272111 | 1353 | * - mixed combos of the above with internal URL |
151ba0d4 AJ |
1354 | * - remote interception with PROXY protocol |
1355 | * - remote reverse-proxy with PROXY protocol | |
89272111 | 1356 | */ |
9ce4a1eb CT |
1357 | if (switchedToHttps()) { |
1358 | http->uri = prepareTlsSwitchingURL(hp); | |
1359 | } else if (transparent()) { | |
89272111 | 1360 | /* intercept or transparent mode, properly working with no failures */ |
9ce4a1eb | 1361 | http->uri = prepareTransparentURL(this, hp); |
89272111 | 1362 | |
51b5dcf5 | 1363 | } else if (internalCheck(hp->requestUri())) { // NP: only matches relative-URI |
89272111 | 1364 | /* internal URL mode */ |
101694e4 AJ |
1365 | // XXX: By prepending our name and port, we create an absolute URL |
1366 | // that may mismatch the (yet unparsed) Host header in the request. | |
aee3523a | 1367 | http->uri = xstrdup(internalLocalUri(nullptr, hp->requestUri())); |
59c59acf | 1368 | |
9ce4a1eb | 1369 | } else if (port->flags.accelSurrogate) { |
59c59acf | 1370 | /* accelerator mode */ |
9ce4a1eb | 1371 | http->uri = prepareAcceleratedURL(this, hp); |
0a57a661 | 1372 | http->flags.accel = true; |
3f38a55e | 1373 | } |
1374 | ||
1375 | if (!http->uri) { | |
62e76326 | 1376 | /* No special rewrites have been applied above, use the |
1377 | * requested url. may be rewritten later, so make extra room */ | |
9bafa70d | 1378 | int url_sz = hp->requestUri().length() + Config.appendDomainLen + 5; |
62e76326 | 1379 | http->uri = (char *)xcalloc(url_sz, 1); |
3f0e38d6 | 1380 | SBufToCstring(http->uri, hp->requestUri()); |
3f38a55e | 1381 | } |
62e76326 | 1382 | |
c4b7a5a9 | 1383 | result->flags.parsed_ok = 1; |
c8be6d7b | 1384 | return result; |
7a2f978b | 1385 | } |
1386 | ||
fcc444e3 | 1387 | bool |
83b053a0 CT |
1388 | ConnStateData::shouldCloseOnEof() const |
1389 | { | |
1390 | if (pipeline.empty() && inBuf.isEmpty()) { | |
1391 | debugs(33, 4, "yes, without active requests and unparsed input"); | |
1392 | return true; | |
1393 | } | |
1394 | ||
1395 | if (!Config.onoff.half_closed_clients) { | |
1396 | debugs(33, 3, "yes, without half_closed_clients"); | |
1397 | return true; | |
c8be6d7b | 1398 | } |
62e76326 | 1399 | |
83b053a0 CT |
1400 | // Squid currently tries to parse (possibly again) a partially received |
1401 | // request after an EOF with half_closed_clients. To give that last parse in | |
1402 | // afterClientRead() a chance, we ignore partially parsed requests here. | |
1403 | debugs(33, 3, "no, honoring half_closed_clients"); | |
fcc444e3 | 1404 | return false; |
c8be6d7b | 1405 | } |
1406 | ||
92ae4c86 AR |
1407 | void |
1408 | ConnStateData::consumeInput(const size_t byteCount) | |
1409 | { | |
fcc444e3 AJ |
1410 | assert(byteCount > 0 && byteCount <= inBuf.length()); |
1411 | inBuf.consume(byteCount); | |
1412 | debugs(33, 5, "inBuf has " << inBuf.length() << " unused bytes"); | |
92ae4c86 AR |
1413 | } |
1414 | ||
1cf238db | 1415 | void |
f35961af | 1416 | ConnStateData::clientAfterReadingRequests() |
c4b7a5a9 | 1417 | { |
39cb8c41 | 1418 | // Were we expecting to read more request body from half-closed connection? |
73c36fd9 | 1419 | if (mayNeedToReadMoreBody() && commIsHalfClosed(clientConnection->fd)) { |
bf95c10a | 1420 | debugs(33, 3, "truncated body: closing half-closed " << clientConnection); |
73c36fd9 | 1421 | clientConnection->close(); |
39cb8c41 | 1422 | return; |
c4b7a5a9 | 1423 | } |
1424 | ||
f35961af AR |
1425 | if (flags.readMore) |
1426 | readSomeData(); | |
c4b7a5a9 | 1427 | } |
1428 | ||
84c77748 AR |
1429 | void |
1430 | ConnStateData::quitAfterError(HttpRequest *request) | |
1431 | { | |
1432 | // From HTTP p.o.v., we do not have to close after every error detected | |
1433 | // at the client-side, but many such errors do require closure and the | |
1434 | // client-side code is bad at handling errors so we play it safe. | |
1435 | if (request) | |
e857372a | 1436 | request->flags.proxyKeepalive = false; |
84c77748 | 1437 | flags.readMore = false; |
bf95c10a | 1438 | debugs(33,4, "Will close after error: " << clientConnection); |
84c77748 AR |
1439 | } |
1440 | ||
cb4f4424 | 1441 | #if USE_OPENSSL |
d3dddfb5 | 1442 | bool ConnStateData::serveDelayedError(Http::Stream *context) |
8eb0a7ee CT |
1443 | { |
1444 | ClientHttpRequest *http = context->http; | |
fd4624d7 CT |
1445 | |
1446 | if (!sslServerBump) | |
8eb0a7ee CT |
1447 | return false; |
1448 | ||
fd4624d7 | 1449 | assert(sslServerBump->entry); |
7a957a93 | 1450 | // Did we create an error entry while processing CONNECT? |
fd4624d7 | 1451 | if (!sslServerBump->entry->isEmpty()) { |
84c77748 AR |
1452 | quitAfterError(http->request); |
1453 | ||
7a957a93 AR |
1454 | // Get the saved error entry and send it to the client by replacing the |
1455 | // ClientHttpRequest store entry with it. | |
8eb0a7ee CT |
1456 | clientStreamNode *node = context->getClientReplyContext(); |
1457 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
7a957a93 AR |
1458 | assert(repContext); |
1459 | debugs(33, 5, "Responding with delated error for " << http->uri); | |
f0baf149 | 1460 | repContext->setReplyToStoreEntry(sslServerBump->entry, "delayed SslBump error"); |
7a957a93 | 1461 | |
7a957a93 | 1462 | // Get error details from the fake certificate-peeking request. |
83b053a0 | 1463 | http->request->error.update(sslServerBump->request->error); |
8eb0a7ee | 1464 | context->pullData(); |
8eb0a7ee CT |
1465 | return true; |
1466 | } | |
1467 | ||
7a957a93 AR |
1468 | // In bump-server-first mode, we have not necessarily seen the intended |
1469 | // server name at certificate-peeking time. Check for domain mismatch now, | |
1470 | // when we can extract the intended name from the bumped HTTP request. | |
92e3827b | 1471 | if (const Security::CertPointer &srvCert = sslServerBump->serverCert) { |
8eb0a7ee | 1472 | HttpRequest *request = http->request; |
92e3827b | 1473 | if (!Ssl::checkX509ServerValidity(srvCert.get(), request->url.host())) { |
7a957a93 | 1474 | debugs(33, 2, "SQUID_X509_V_ERR_DOMAIN_MISMATCH: Certificate " << |
5c51bffb | 1475 | "does not match domainname " << request->url.host()); |
8eb0a7ee | 1476 | |
d4a56c34 | 1477 | bool allowDomainMismatch = false; |
638402dd | 1478 | if (Config.ssl_client.cert_error) { |
e227da8d | 1479 | ACLFilledChecklist check(Config.ssl_client.cert_error, nullptr); |
27a1c6de AR |
1480 | const auto sslErrors = std::make_unique<Security::CertErrors>(Security::CertError(SQUID_X509_V_ERR_DOMAIN_MISMATCH, srvCert)); |
1481 | check.sslErrors = sslErrors.get(); | |
e227da8d | 1482 | clientAclChecklistFill(check, http); |
06bf5384 | 1483 | allowDomainMismatch = check.fastCheck().allowed(); |
638402dd | 1484 | } |
8eb0a7ee | 1485 | |
7d82c5b8 | 1486 | if (!allowDomainMismatch) { |
84c77748 AR |
1487 | quitAfterError(request); |
1488 | ||
8eb0a7ee CT |
1489 | clientStreamNode *node = context->getClientReplyContext(); |
1490 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); | |
1491 | assert (repContext); | |
1492 | ||
d8165775 | 1493 | request->hier = sslServerBump->request->hier; |
7a957a93 | 1494 | |
8eb0a7ee | 1495 | // Create an error object and fill it |
7e6eabbc | 1496 | const auto err = new ErrorState(ERR_SECURE_CONNECT_FAIL, Http::scServiceUnavailable, request, http->al); |
8eb0a7ee | 1497 | err->src_addr = clientConnection->remote; |
83b053a0 | 1498 | const Security::ErrorDetail::Pointer errDetail = new Security::ErrorDetail( |
7a957a93 | 1499 | SQUID_X509_V_ERR_DOMAIN_MISMATCH, |
83b053a0 CT |
1500 | srvCert, nullptr); |
1501 | updateError(ERR_SECURE_CONNECT_FAIL, errDetail); | |
8eb0a7ee CT |
1502 | repContext->setReplyToError(request->method, err); |
1503 | assert(context->http->out.offset == 0); | |
1504 | context->pullData(); | |
8eb0a7ee CT |
1505 | return true; |
1506 | } | |
1507 | } | |
1508 | } | |
1509 | ||
1510 | return false; | |
1511 | } | |
cb4f4424 | 1512 | #endif // USE_OPENSSL |
8eb0a7ee | 1513 | |
9ce4a1eb CT |
1514 | /// initiate tunneling if possible or return false otherwise |
1515 | bool | |
eb026889 | 1516 | ConnStateData::tunnelOnError(const err_type requestError) |
9ce4a1eb CT |
1517 | { |
1518 | if (!Config.accessList.on_unsupported_protocol) { | |
1519 | debugs(33, 5, "disabled; send error: " << requestError); | |
1520 | return false; | |
3248e962 CT |
1521 | } |
1522 | ||
9ce4a1eb CT |
1523 | if (!preservingClientData_) { |
1524 | debugs(33, 3, "may have forgotten client data; send error: " << requestError); | |
1525 | return false; | |
1526 | } | |
1527 | ||
e227da8d | 1528 | ACLFilledChecklist checklist(Config.accessList.on_unsupported_protocol, nullptr); |
9ce4a1eb | 1529 | checklist.requestErrorType = requestError; |
e227da8d | 1530 | fillChecklist(checklist); |
17e41e03 | 1531 | const auto &answer = checklist.fastCheck(); |
9ce4a1eb CT |
1532 | if (answer.allowed() && answer.kind == 1) { |
1533 | debugs(33, 3, "Request will be tunneled to server"); | |
e227da8d AR |
1534 | const auto context = pipeline.front(); |
1535 | const auto http = context ? context->http : nullptr; | |
1536 | const auto request = http ? http->request : nullptr; | |
9ce4a1eb CT |
1537 | if (context) |
1538 | context->finished(); // Will remove from pipeline queue | |
aee3523a | 1539 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_READ, nullptr, nullptr, 0); |
eb026889 | 1540 | return initiateTunneledRequest(request, "unknown-protocol", preservedClientData); |
9ce4a1eb CT |
1541 | } |
1542 | debugs(33, 3, "denied; send error: " << requestError); | |
3248e962 CT |
1543 | return false; |
1544 | } | |
1545 | ||
ec69bdb2 | 1546 | void |
28fd6d0b AJ |
1547 | clientProcessRequestFinished(ConnStateData *conn, const HttpRequest::Pointer &request) |
1548 | { | |
1549 | /* | |
1550 | * DPW 2007-05-18 | |
1551 | * Moved the TCP_RESET feature from clientReplyContext::sendMoreData | |
1552 | * to here because calling comm_reset_close() causes http to | |
48a37aee | 1553 | * be freed before accessing. |
28fd6d0b | 1554 | */ |
aee3523a | 1555 | if (request != nullptr && request->flags.resetTcp && Comm::IsConnOpen(conn->clientConnection)) { |
bf95c10a | 1556 | debugs(33, 3, "Sending TCP RST on " << conn->clientConnection); |
28fd6d0b AJ |
1557 | conn->flags.readMore = false; |
1558 | comm_reset_close(conn->clientConnection); | |
1559 | } | |
1560 | } | |
1561 | ||
9bafa70d | 1562 | void |
d3dddfb5 | 1563 | clientProcessRequest(ConnStateData *conn, const Http1::RequestParserPointer &hp, Http::Stream *context) |
c4b7a5a9 | 1564 | { |
59a1efb2 | 1565 | ClientHttpRequest *http = context->http; |
e18b8316 | 1566 | bool mustReplyToOptions = false; |
39cb8c41 | 1567 | bool expectBody = false; |
5f8252d2 | 1568 | |
ec69bdb2 CT |
1569 | // We already have the request parsed and checked, so we |
1570 | // only need to go through the final body/conn setup to doCallouts(). | |
1571 | assert(http->request); | |
1572 | HttpRequest::Pointer request = http->request; | |
1573 | ||
92ae4c86 | 1574 | // temporary hack to avoid splitting this huge function with sensitive code |
f9688132 | 1575 | const bool isFtp = !hp; |
9bafa70d | 1576 | |
92ae4c86 AR |
1577 | // Some blobs below are still HTTP-specific, but we would have to rewrite |
1578 | // this entire function to remove them from the FTP code path. Connection | |
1579 | // setup and body_pipe preparation blobs are needed for FTP. | |
1580 | ||
cd4a5c60 | 1581 | request->manager(conn, http->al); |
40d34a62 | 1582 | |
c4b7a5a9 | 1583 | request->flags.accelerated = http->flags.accel; |
450fe1cb | 1584 | request->flags.sslBumped=conn->switchedToHttps(); |
7fb65ee4 | 1585 | // TODO: decouple http->flags.accel from request->flags.sslBumped |
450fe1cb | 1586 | request->flags.noDirect = (request->flags.accelerated && !request->flags.sslBumped) ? |
e4a14600 | 1587 | !conn->port->allow_direct : 0; |
63df1d28 AJ |
1588 | request->sources |= isFtp ? Http::Message::srcFtp : |
1589 | ((request->flags.sslBumped || conn->port->transport.protocol == AnyP::PROTO_HTTPS) ? Http::Message::srcHttps : Http::Message::srcHttp); | |
21512911 CT |
1590 | #if USE_AUTH |
1591 | if (request->flags.sslBumped) { | |
aee3523a | 1592 | if (conn->getAuth() != nullptr) |
cc1e110a | 1593 | request->auth_user_request = conn->getAuth(); |
21512911 CT |
1594 | } |
1595 | #endif | |
2ad20b4f | 1596 | |
333c433b | 1597 | http->checkForInternalAccess(); |
e72a0ec0 | 1598 | |
9bafa70d | 1599 | if (!isFtp) { |
63df1d28 | 1600 | // XXX: for non-HTTP messages instantiate a different Http::Message child type |
9bafa70d AJ |
1601 | // for now Squid only supports HTTP requests |
1602 | const AnyP::ProtocolVersion &http_ver = hp->messageProtocol(); | |
1603 | assert(request->http_ver.protocol == http_ver.protocol); | |
1604 | request->http_ver.major = http_ver.major; | |
1605 | request->http_ver.minor = http_ver.minor; | |
1606 | } | |
62e76326 | 1607 | |
f9688132 | 1608 | mustReplyToOptions = (request->method == Http::METHOD_OPTIONS) && |
789217a2 | 1609 | (request->header.getInt64(Http::HdrType::MAX_FORWARDS) == 0); |
4bd88eb4 | 1610 | if (!urlCheckRequest(request.getRaw()) || mustReplyToOptions) { |
62e76326 | 1611 | clientStreamNode *node = context->getClientReplyContext(); |
b248c2a3 | 1612 | conn->quitAfterError(request.getRaw()); |
0655fa4d | 1613 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
1614 | assert (repContext); | |
eb026889 | 1615 | repContext->setReplyToError(ERR_UNSUP_REQ, Http::scNotImplemented, nullptr, |
7976fed3 | 1616 | conn, request.getRaw(), nullptr, nullptr); |
62e76326 | 1617 | assert(context->http->out.offset == 0); |
1618 | context->pullData(); | |
28fd6d0b AJ |
1619 | clientProcessRequestFinished(conn, request); |
1620 | return; | |
c4b7a5a9 | 1621 | } |
1622 | ||
4bd88eb4 AJ |
1623 | const auto frameStatus = request->checkEntityFraming(); |
1624 | if (frameStatus != Http::scNone) { | |
62e76326 | 1625 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 1626 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
1627 | assert (repContext); | |
b248c2a3 | 1628 | conn->quitAfterError(request.getRaw()); |
eb026889 | 1629 | repContext->setReplyToError(ERR_INVALID_REQ, frameStatus, nullptr, conn, request.getRaw(), nullptr, nullptr); |
62e76326 | 1630 | assert(context->http->out.offset == 0); |
1631 | context->pullData(); | |
28fd6d0b AJ |
1632 | clientProcessRequestFinished(conn, request); |
1633 | return; | |
c4b7a5a9 | 1634 | } |
1635 | ||
92ae4c86 | 1636 | clientSetKeepaliveFlag(http); |
f35961af | 1637 | // Let tunneling code be fully responsible for CONNECT requests |
c2a7cefd | 1638 | if (http->request->method == Http::METHOD_CONNECT) { |
b66e0e86 | 1639 | context->mayUseConnection(true); |
f35961af AR |
1640 | conn->flags.readMore = false; |
1641 | } | |
fc68f6b1 | 1642 | |
cb4f4424 | 1643 | #if USE_OPENSSL |
28fd6d0b | 1644 | if (conn->switchedToHttps() && conn->serveDelayedError(context)) { |
28fd6d0b AJ |
1645 | clientProcessRequestFinished(conn, request); |
1646 | return; | |
1647 | } | |
061bbdec CT |
1648 | #endif |
1649 | ||
b66e0e86 | 1650 | /* Do we expect a request-body? */ |
4bd88eb4 | 1651 | const auto chunked = request->header.chunked(); |
39cb8c41 AR |
1652 | expectBody = chunked || request->content_length > 0; |
1653 | if (!context->mayUseConnection() && expectBody) { | |
1654 | request->body_pipe = conn->expectRequestBody( | |
de48b288 | 1655 | chunked ? -1 : request->content_length); |
5f8252d2 | 1656 | |
62e76326 | 1657 | /* Is it too large? */ |
39cb8c41 | 1658 | if (!chunked && // if chunked, we will check as we accumulate |
de48b288 | 1659 | clientIsRequestBodyTooLargeForPolicy(request->content_length)) { |
62e76326 | 1660 | clientStreamNode *node = context->getClientReplyContext(); |
0655fa4d | 1661 | clientReplyContext *repContext = dynamic_cast<clientReplyContext *>(node->data.getRaw()); |
1662 | assert (repContext); | |
b248c2a3 | 1663 | conn->quitAfterError(request.getRaw()); |
0655fa4d | 1664 | repContext->setReplyToError(ERR_TOO_BIG, |
5a3b42b1 | 1665 | Http::scContentTooLarge, nullptr, |
7976fed3 | 1666 | conn, http->request, nullptr, nullptr); |
62e76326 | 1667 | assert(context->http->out.offset == 0); |
1668 | context->pullData(); | |
28fd6d0b AJ |
1669 | clientProcessRequestFinished(conn, request); |
1670 | return; | |
62e76326 | 1671 | } |
1672 | ||
92ae4c86 | 1673 | if (!isFtp) { |
a5d444a5 DK |
1674 | // We may stop producing, comm_close, and/or call setReplyToError() |
1675 | // below, so quit on errors to avoid http->doCallouts() | |
28fd6d0b AJ |
1676 | if (!conn->handleRequestBodyData()) { |
1677 | clientProcessRequestFinished(conn, request); | |
1678 | return; | |
1679 | } | |
39cb8c41 | 1680 | |
a5d444a5 | 1681 | if (!request->body_pipe->productionEnded()) { |
e7ce227f | 1682 | debugs(33, 5, "need more request body"); |
a5d444a5 DK |
1683 | context->mayUseConnection(true); |
1684 | assert(conn->flags.readMore); | |
1685 | } | |
f35961af | 1686 | } |
c4b7a5a9 | 1687 | } |
1688 | ||
de31d06f | 1689 | http->calloutContext = new ClientRequestContext(http); |
1690 | ||
1691 | http->doCallouts(); | |
9e008dda | 1692 | |
28fd6d0b | 1693 | clientProcessRequestFinished(conn, request); |
c4b7a5a9 | 1694 | } |
1695 | ||
83b053a0 CT |
1696 | void |
1697 | ConnStateData::add(const Http::StreamPointer &context) | |
1698 | { | |
1699 | debugs(33, 3, context << " to " << pipeline.count() << '/' << pipeline.nrequests); | |
1700 | if (bareError) { | |
1701 | debugs(33, 5, "assigning " << bareError); | |
1702 | assert(context); | |
1703 | assert(context->http); | |
1704 | context->http->updateError(bareError); | |
1705 | bareError.clear(); | |
1706 | } | |
1707 | pipeline.add(context); | |
1708 | } | |
1709 | ||
92ae4c86 AR |
1710 | int |
1711 | ConnStateData::pipelinePrefetchMax() const | |
1712 | { | |
efbea402 CT |
1713 | // TODO: Support pipelined requests through pinned connections. |
1714 | if (pinning.pinned) | |
1715 | return 0; | |
92ae4c86 AR |
1716 | return Config.pipeline_max_prefetch; |
1717 | } | |
1718 | ||
079a8480 AJ |
1719 | /** |
1720 | * Limit the number of concurrent requests. | |
1721 | * \return true when there are available position(s) in the pipeline queue for another request. | |
1722 | * \return false when the pipeline queue is full or disabled. | |
1723 | */ | |
1724 | bool | |
1725 | ConnStateData::concurrentRequestQueueFilled() const | |
c4b7a5a9 | 1726 | { |
e500cc89 | 1727 | const int existingRequestCount = pipeline.count(); |
079a8480 AJ |
1728 | |
1729 | // default to the configured pipeline size. | |
1730 | // add 1 because the head of pipeline is counted in concurrent requests and not prefetch queue | |
0de57497 | 1731 | #if USE_OPENSSL |
43b43c46 | 1732 | const int internalRequest = (transparent() && sslBumpMode == Ssl::bumpSplice) ? 1 : 0; |
0de57497 | 1733 | #else |
06211564 | 1734 | const int internalRequest = 0; |
0de57497 | 1735 | #endif |
43b43c46 | 1736 | const int concurrentRequestLimit = pipelinePrefetchMax() + 1 + internalRequest; |
62e76326 | 1737 | |
2f8abb64 | 1738 | // when queue filled already we can't add more. |
079a8480 AJ |
1739 | if (existingRequestCount >= concurrentRequestLimit) { |
1740 | debugs(33, 3, clientConnection << " max concurrent requests reached (" << concurrentRequestLimit << ")"); | |
1741 | debugs(33, 5, clientConnection << " deferring new request until one is done"); | |
1742 | return true; | |
c4b7a5a9 | 1743 | } |
62e76326 | 1744 | |
079a8480 | 1745 | return false; |
c4b7a5a9 | 1746 | } |
1747 | ||
00d0ce87 | 1748 | /** |
d3d92daa | 1749 | * Perform proxy_protocol_access ACL tests on the client which |
3bd97e7e AJ |
1750 | * connected to PROXY protocol port to see if we trust the |
1751 | * sender enough to accept their PROXY header claim. | |
00d0ce87 | 1752 | */ |
6658cc16 | 1753 | bool |
00d0ce87 AJ |
1754 | ConnStateData::proxyProtocolValidateClient() |
1755 | { | |
d3d92daa AJ |
1756 | if (!Config.accessList.proxyProtocol) |
1757 | return proxyProtocolError("PROXY client not permitted by default ACL"); | |
1758 | ||
e227da8d AR |
1759 | ACLFilledChecklist ch(Config.accessList.proxyProtocol, nullptr); |
1760 | fillChecklist(ch); | |
06bf5384 | 1761 | if (!ch.fastCheck().allowed()) |
3bd97e7e AJ |
1762 | return proxyProtocolError("PROXY client not permitted by ACLs"); |
1763 | ||
6658cc16 | 1764 | return true; |
00d0ce87 AJ |
1765 | } |
1766 | ||
1767 | /** | |
1768 | * Perform cleanup on PROXY protocol errors. | |
1769 | * If header parsing hits a fatal error terminate the connection, | |
1770 | * otherwise wait for more data. | |
1771 | */ | |
1772 | bool | |
3bd97e7e | 1773 | ConnStateData::proxyProtocolError(const char *msg) |
00d0ce87 | 1774 | { |
3c082dbe | 1775 | if (msg) { |
70a16fea AJ |
1776 | // This is important to know, but maybe not so much that flooding the log is okay. |
1777 | #if QUIET_PROXY_PROTOCOL | |
2f8abb64 | 1778 | // display the first of every 32 occurrences at level 1, the others at level 2. |
70a16fea AJ |
1779 | static uint8_t hide = 0; |
1780 | debugs(33, (hide++ % 32 == 0 ? DBG_IMPORTANT : 2), msg << " from " << clientConnection); | |
1781 | #else | |
1782 | debugs(33, DBG_IMPORTANT, msg << " from " << clientConnection); | |
1783 | #endif | |
3bd97e7e | 1784 | mustStop(msg); |
3c082dbe | 1785 | } |
00d0ce87 AJ |
1786 | return false; |
1787 | } | |
1788 | ||
36c774f7 EB |
1789 | /// Attempts to extract a PROXY protocol header from the input buffer and, |
1790 | /// upon success, stores the parsed header in proxyProtocolHeader_. | |
1791 | /// \returns true if the header was successfully parsed | |
1792 | /// \returns false if more data is needed to parse the header or on error | |
00d0ce87 | 1793 | bool |
3d74cb1f | 1794 | ConnStateData::parseProxyProtocolHeader() |
00d0ce87 | 1795 | { |
36c774f7 EB |
1796 | try { |
1797 | const auto parsed = ProxyProtocol::Parse(inBuf); | |
1798 | proxyProtocolHeader_ = parsed.header; | |
1799 | assert(bool(proxyProtocolHeader_)); | |
1800 | inBuf.consume(parsed.size); | |
1801 | needProxyProtocolHeader_ = false; | |
1802 | if (proxyProtocolHeader_->hasForwardedAddresses()) { | |
1803 | clientConnection->local = proxyProtocolHeader_->destinationAddress; | |
1804 | clientConnection->remote = proxyProtocolHeader_->sourceAddress; | |
1805 | if ((clientConnection->flags & COMM_TRANSPARENT)) | |
1806 | clientConnection->flags ^= COMM_TRANSPARENT; // prevent TPROXY spoofing of this new IP. | |
1807 | debugs(33, 5, "PROXY/" << proxyProtocolHeader_->version() << " upgrade: " << clientConnection); | |
1808 | } | |
1809 | } catch (const Parser::BinaryTokenizer::InsufficientInput &) { | |
1810 | debugs(33, 3, "PROXY protocol: waiting for more than " << inBuf.length() << " bytes"); | |
1811 | return false; | |
1812 | } catch (const std::exception &e) { | |
1813 | return proxyProtocolError(e.what()); | |
00d0ce87 | 1814 | } |
3bd97e7e | 1815 | return true; |
00d0ce87 AJ |
1816 | } |
1817 | ||
3248e962 CT |
1818 | void |
1819 | ConnStateData::receivedFirstByte() | |
1820 | { | |
1821 | if (receivedFirstByte_) | |
1822 | return; | |
1823 | ||
1824 | receivedFirstByte_ = true; | |
83b053a0 | 1825 | resetReadTimeout(Config.Timeout.request); |
3248e962 CT |
1826 | } |
1827 | ||
5da786ef AR |
1828 | /// Attempt to parse one or more requests from the input buffer. |
1829 | /// May close the connection. | |
1830 | void | |
1831 | ConnStateData::parseRequests() | |
f900210a | 1832 | { |
bf95c10a | 1833 | debugs(33, 5, clientConnection << ": attempting to parse"); |
f900210a | 1834 | |
39cb8c41 | 1835 | // Loop while we have read bytes that are not needed for producing the body |
f35961af | 1836 | // On errors, bodyPipe may become nil, but readMore will be cleared |
fcc444e3 | 1837 | while (!inBuf.isEmpty() && !bodyPipe && flags.readMore) { |
f900210a | 1838 | |
801cfc26 CT |
1839 | // Prohibit concurrent requests when using a pinned to-server connection |
1840 | // because our Client classes do not support request pipelining. | |
1841 | if (pinning.pinned && !pinning.readHandler) { | |
1842 | debugs(33, 3, clientConnection << " waits for busy " << pinning.serverConnection); | |
1843 | break; | |
1844 | } | |
1845 | ||
079a8480 AJ |
1846 | /* Limit the number of concurrent requests */ |
1847 | if (concurrentRequestQueueFilled()) | |
f900210a | 1848 | break; |
f900210a | 1849 | |
00d0ce87 | 1850 | // try to parse the PROXY protocol header magic bytes |
42cbf844 AJ |
1851 | if (needProxyProtocolHeader_) { |
1852 | if (!parseProxyProtocolHeader()) | |
1853 | break; | |
1854 | ||
1855 | // we have been waiting for PROXY to provide client-IP | |
e94ff527 | 1856 | // for some lookups, ie rDNS |
42cbf844 | 1857 | whenClientIpKnown(); |
9ce4a1eb CT |
1858 | |
1859 | // Done with PROXY protocol which has cleared preservingClientData_. | |
1860 | // If the next protocol supports on_unsupported_protocol, then its | |
1861 | // parseOneRequest() must reset preservingClientData_. | |
1862 | assert(!preservingClientData_); | |
42cbf844 | 1863 | } |
00d0ce87 | 1864 | |
6b2b6cfe | 1865 | if (Http::StreamPointer context = parseOneRequest()) { |
eacfca83 | 1866 | debugs(33, 5, clientConnection << ": done parsing a request"); |
83b053a0 | 1867 | extendLifetime(); |
eacfca83 AR |
1868 | context->registerWithConn(); |
1869 | ||
9ce4a1eb CT |
1870 | #if USE_OPENSSL |
1871 | if (switchedToHttps()) | |
1872 | parsedBumpedRequestCount++; | |
1873 | #endif | |
1874 | ||
9bafa70d | 1875 | processParsedRequest(context); |
f900210a | 1876 | |
f900210a | 1877 | if (context->mayUseConnection()) { |
bf95c10a | 1878 | debugs(33, 3, "Not parsing new requests, as this request may need the connection"); |
f900210a | 1879 | break; |
1880 | } | |
eacfca83 AR |
1881 | } else { |
1882 | debugs(33, 5, clientConnection << ": not enough request data: " << | |
fcc444e3 AJ |
1883 | inBuf.length() << " < " << Config.maxRequestHeaderSize); |
1884 | Must(inBuf.length() < Config.maxRequestHeaderSize); | |
eacfca83 | 1885 | break; |
f900210a | 1886 | } |
39cb8c41 | 1887 | } |
fc68f6b1 | 1888 | |
5da786ef AR |
1889 | debugs(33, 7, "buffered leftovers: " << inBuf.length()); |
1890 | ||
1891 | if (isOpen() && commIsHalfClosed(clientConnection->fd)) { | |
1892 | if (pipeline.empty()) { | |
1893 | // we processed what we could parse, and no more data is coming | |
1894 | debugs(33, 5, "closing half-closed without parsed requests: " << clientConnection); | |
1895 | clientConnection->close(); | |
1896 | } else { | |
1897 | // we parsed what we could, and no more data is coming | |
1898 | debugs(33, 5, "monitoring half-closed while processing parsed requests: " << clientConnection); | |
1899 | flags.readMore = false; // may already be false | |
1900 | } | |
1901 | } | |
f900210a | 1902 | } |
1903 | ||
1cf238db | 1904 | void |
fcc444e3 | 1905 | ConnStateData::afterClientRead() |
c4b7a5a9 | 1906 | { |
3cae14a6 | 1907 | #if USE_OPENSSL |
d20cf186 AR |
1908 | if (parsingTlsHandshake) { |
1909 | parseTlsHandshake(); | |
3cae14a6 CT |
1910 | return; |
1911 | } | |
1912 | #endif | |
d20cf186 | 1913 | |
94439e4e | 1914 | /* Process next request */ |
e500cc89 | 1915 | if (pipeline.empty()) |
fcc444e3 | 1916 | fd_note(clientConnection->fd, "Reading next request"); |
c8be6d7b | 1917 | |
5da786ef | 1918 | parseRequests(); |
ee6f0213 | 1919 | |
1cf238db | 1920 | if (!isOpen()) |
2e216b1d | 1921 | return; |
1922 | ||
f35961af | 1923 | clientAfterReadingRequests(); |
94439e4e | 1924 | } |
1925 | ||
63be0a78 | 1926 | /** |
1927 | * called when new request data has been read from the socket | |
39cb8c41 AR |
1928 | * |
1929 | * \retval false called comm_close or setReplyToError (the caller should bail) | |
1930 | * \retval true we did not call comm_close or setReplyToError | |
63be0a78 | 1931 | */ |
39cb8c41 | 1932 | bool |
7e66d5e2 | 1933 | ConnStateData::handleReadData() |
94439e4e | 1934 | { |
5f8252d2 | 1935 | // if we are reading a body, stuff data into the body pipe |
aee3523a | 1936 | if (bodyPipe != nullptr) |
39cb8c41 AR |
1937 | return handleRequestBodyData(); |
1938 | return true; | |
94439e4e | 1939 | } |
1940 | ||
63be0a78 | 1941 | /** |
fcc444e3 | 1942 | * called when new request body data has been buffered in inBuf |
63be0a78 | 1943 | * may close the connection if we were closing and piped everything out |
39cb8c41 AR |
1944 | * |
1945 | * \retval false called comm_close or setReplyToError (the caller should bail) | |
1946 | * \retval true we did not call comm_close or setReplyToError | |
63be0a78 | 1947 | */ |
39cb8c41 | 1948 | bool |
5f8252d2 | 1949 | ConnStateData::handleRequestBodyData() |
94439e4e | 1950 | { |
aee3523a | 1951 | assert(bodyPipe != nullptr); |
5f8252d2 | 1952 | |
fcc444e3 | 1953 | if (bodyParser) { // chunked encoding |
be29ee33 | 1954 | if (const err_type error = handleChunkedRequestBody()) { |
39cb8c41 AR |
1955 | abortChunkedRequestBody(error); |
1956 | return false; | |
3ff65596 | 1957 | } |
39cb8c41 | 1958 | } else { // identity encoding |
bf95c10a | 1959 | debugs(33,5, "handling plain request body for " << clientConnection); |
46b10098 | 1960 | const auto putSize = bodyPipe->putMoreData(inBuf.rawContent(), inBuf.length()); |
be29ee33 AJ |
1961 | if (putSize > 0) |
1962 | consumeInput(putSize); | |
1963 | ||
3ff65596 AR |
1964 | if (!bodyPipe->mayNeedMoreData()) { |
1965 | // BodyPipe will clear us automagically when we produced everything | |
aee3523a | 1966 | bodyPipe = nullptr; |
3ff65596 AR |
1967 | } |
1968 | } | |
1969 | ||
3ff65596 | 1970 | if (!bodyPipe) { |
bf95c10a | 1971 | debugs(33,5, "produced entire request body for " << clientConnection); |
62e76326 | 1972 | |
cf6eb29e | 1973 | if (const char *reason = stoppedSending()) { |
5f8252d2 | 1974 | /* we've finished reading like good clients, |
1975 | * now do the close that initiateClose initiated. | |
5f8252d2 | 1976 | */ |
bf95c10a | 1977 | debugs(33, 3, "closing for earlier sending error: " << reason); |
73c36fd9 | 1978 | clientConnection->close(); |
39cb8c41 AR |
1979 | return false; |
1980 | } | |
1981 | } | |
1982 | ||
1983 | return true; | |
1984 | } | |
1985 | ||
1986 | /// parses available chunked encoded body bytes, checks size, returns errors | |
1987 | err_type | |
be29ee33 | 1988 | ConnStateData::handleChunkedRequestBody() |
39cb8c41 | 1989 | { |
fcc444e3 | 1990 | debugs(33, 7, "chunked from " << clientConnection << ": " << inBuf.length()); |
39cb8c41 AR |
1991 | |
1992 | try { // the parser will throw on errors | |
1993 | ||
fcc444e3 | 1994 | if (inBuf.isEmpty()) // nothing to do |
39cb8c41 AR |
1995 | return ERR_NONE; |
1996 | ||
39cb8c41 | 1997 | BodyPipeCheckout bpc(*bodyPipe); |
fcc444e3 AJ |
1998 | bodyParser->setPayloadBuffer(&bpc.buf); |
1999 | const bool parsed = bodyParser->parse(inBuf); | |
2000 | inBuf = bodyParser->remaining(); // sync buffers | |
39cb8c41 | 2001 | bpc.checkIn(); |
39cb8c41 AR |
2002 | |
2003 | // dechunk then check: the size limit applies to _dechunked_ content | |
2004 | if (clientIsRequestBodyTooLargeForPolicy(bodyPipe->producedSize())) | |
2005 | return ERR_TOO_BIG; | |
2006 | ||
2007 | if (parsed) { | |
2008 | finishDechunkingRequest(true); | |
2009 | Must(!bodyPipe); | |
2010 | return ERR_NONE; // nil bodyPipe implies body end for the caller | |
5f8252d2 | 2011 | } |
39cb8c41 AR |
2012 | |
2013 | // if chunk parser needs data, then the body pipe must need it too | |
fcc444e3 | 2014 | Must(!bodyParser->needsMoreData() || bodyPipe->mayNeedMoreData()); |
39cb8c41 AR |
2015 | |
2016 | // if parser needs more space and we can consume nothing, we will stall | |
fcc444e3 | 2017 | Must(!bodyParser->needsMoreSpace() || bodyPipe->buf().hasContent()); |
39cb8c41 | 2018 | } catch (...) { // TODO: be more specific |
bf95c10a | 2019 | debugs(33, 3, "malformed chunks" << bodyPipe->status()); |
39cb8c41 | 2020 | return ERR_INVALID_REQ; |
94439e4e | 2021 | } |
39cb8c41 | 2022 | |
bf95c10a | 2023 | debugs(33, 7, "need more chunked data" << *bodyPipe->status()); |
39cb8c41 AR |
2024 | return ERR_NONE; |
2025 | } | |
2026 | ||
2027 | /// quit on errors related to chunked request body handling | |
2028 | void | |
2029 | ConnStateData::abortChunkedRequestBody(const err_type error) | |
2030 | { | |
2031 | finishDechunkingRequest(false); | |
2032 | ||
2033 | // XXX: The code below works if we fail during initial request parsing, | |
d5430dc8 | 2034 | // but if we fail when the server connection is used already, the server may send |
39cb8c41 AR |
2035 | // us its response too, causing various assertions. How to prevent that? |
2036 | #if WE_KNOW_HOW_TO_SEND_ERRORS | |
d3dddfb5 | 2037 | Http::StreamPointer context = pipeline.front(); |
39cb8c41 AR |
2038 | if (context != NULL && !context->http->out.offset) { // output nothing yet |
2039 | clientStreamNode *node = context->getClientReplyContext(); | |
2040 | clientReplyContext *repContext = dynamic_cast<clientReplyContext*>(node->data.getRaw()); | |
2041 | assert(repContext); | |
955394ce | 2042 | const Http::StatusCode scode = (error == ERR_TOO_BIG) ? |
5a3b42b1 | 2043 | Http::scContentTooLarge : HTTP_BAD_REQUEST; |
39cb8c41 | 2044 | repContext->setReplyToError(error, scode, |
39cb8c41 | 2045 | repContext->http->uri, |
a3c6762c | 2046 | CachePeer, |
39cb8c41 | 2047 | repContext->http->request, |
a1b1756c | 2048 | inBuf, nullptr); |
39cb8c41 AR |
2049 | context->pullData(); |
2050 | } else { | |
2051 | // close or otherwise we may get stuck as nobody will notice the error? | |
73c36fd9 | 2052 | comm_reset_close(clientConnection); |
39cb8c41 AR |
2053 | } |
2054 | #else | |
bf95c10a | 2055 | debugs(33, 3, "aborting chunked request without error " << error); |
73c36fd9 | 2056 | comm_reset_close(clientConnection); |
39cb8c41 | 2057 | #endif |
f35961af | 2058 | flags.readMore = false; |
5f8252d2 | 2059 | } |
55e44db9 | 2060 | |
5f8252d2 | 2061 | void |
1cf238db | 2062 | ConnStateData::noteBodyConsumerAborted(BodyPipe::Pointer ) |
5f8252d2 | 2063 | { |
cf6eb29e | 2064 | // request reader may get stuck waiting for space if nobody consumes body |
aee3523a | 2065 | if (bodyPipe != nullptr) |
cf6eb29e CT |
2066 | bodyPipe->enableAutoConsumption(); |
2067 | ||
92ae4c86 | 2068 | // kids extend |
94439e4e | 2069 | } |
2070 | ||
63be0a78 | 2071 | /** general lifetime handler for HTTP requests */ |
1cf238db | 2072 | void |
2073 | ConnStateData::requestTimeout(const CommTimeoutCbParams &io) | |
7a2f978b | 2074 | { |
d5b97346 AJ |
2075 | if (!Comm::IsConnOpen(io.conn)) |
2076 | return; | |
2077 | ||
9ce4a1eb | 2078 | const err_type error = receivedFirstByte_ ? ERR_REQUEST_PARSE_TIMEOUT : ERR_REQUEST_START_TIMEOUT; |
83b053a0 | 2079 | updateError(error); |
eb026889 | 2080 | if (tunnelOnError(error)) |
9ce4a1eb CT |
2081 | return; |
2082 | ||
af57a2e3 | 2083 | /* |
62e76326 | 2084 | * Just close the connection to not confuse browsers |
6177a89f HN |
2085 | * using persistent connections. Some browsers open |
2086 | * a connection and then do not use it until much | |
62e76326 | 2087 | * later (presumeably because the request triggering |
2088 | * the open has already been completed on another | |
2089 | * connection) | |
2090 | */ | |
1cf238db | 2091 | debugs(33, 3, "requestTimeout: FD " << io.fd << ": lifetime is expired."); |
8d77a37c | 2092 | io.conn->close(); |
7a2f978b | 2093 | } |
2094 | ||
83b053a0 CT |
2095 | void |
2096 | ConnStateData::lifetimeTimeout(const CommTimeoutCbParams &io) | |
b5c39993 | 2097 | { |
83b053a0 CT |
2098 | debugs(33, DBG_IMPORTANT, "WARNING: Closing client connection due to lifetime timeout" << |
2099 | Debug::Extra << "connection: " << io.conn); | |
2100 | ||
2101 | LogTagsErrors lte; | |
2102 | lte.timedout = true; | |
2103 | terminateAll(ERR_LIFETIME_EXP, lte); | |
b5c39993 | 2104 | } |
2105 | ||
94bfd31f | 2106 | ConnStateData::ConnStateData(const MasterXaction::Pointer &xact) : |
f53969cc | 2107 | AsyncJob("ConnStateData"), // kids overwrite |
ca0d7ed6 | 2108 | Server(xact) |
cb4f4424 | 2109 | #if USE_OPENSSL |
ca0d7ed6 | 2110 | , tlsParser(Security::HandshakeParser::fromClient) |
4579a6d0 | 2111 | #endif |
c8be6d7b | 2112 | { |
94bfd31f | 2113 | // store the details required for creating more MasterXaction objects as new requests come in |
94bfd31f | 2114 | log_addr = xact->tcpClient->remote; |
36c774f7 | 2115 | log_addr.applyClientMask(Config.Addrs.client_netmask); |
d442618d AJ |
2116 | |
2117 | // register to receive notice of Squid signal events | |
2118 | // which may affect long persisting client connections | |
b856803f | 2119 | registerRunner(); |
92ae4c86 AR |
2120 | } |
2121 | ||
2122 | void | |
2123 | ConnStateData::start() | |
2124 | { | |
2125 | BodyProducer::start(); | |
2126 | HttpControlMsgSink::start(); | |
2127 | ||
5529ca8a | 2128 | if (port->disable_pmtu_discovery != DISABLE_PMTU_OFF && |
94bfd31f | 2129 | (transparent() || port->disable_pmtu_discovery == DISABLE_PMTU_ALWAYS)) { |
5529ca8a | 2130 | #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) |
2131 | int i = IP_PMTUDISC_DONT; | |
b69e9ffa AJ |
2132 | if (setsockopt(clientConnection->fd, SOL_IP, IP_MTU_DISCOVER, &i, sizeof(i)) < 0) { |
2133 | int xerrno = errno; | |
2134 | debugs(33, 2, "WARNING: Path MTU discovery disabling failed on " << clientConnection << " : " << xstrerr(xerrno)); | |
2135 | } | |
5529ca8a | 2136 | #else |
9bb67276 | 2137 | static bool reported = false; |
5529ca8a | 2138 | |
2139 | if (!reported) { | |
d816f28d | 2140 | debugs(33, DBG_IMPORTANT, "WARNING: Path MTU discovery disabling is not supported on your platform."); |
9bb67276 | 2141 | reported = true; |
5529ca8a | 2142 | } |
89aec9b6 AJ |
2143 | #endif |
2144 | } | |
5529ca8a | 2145 | |
89aec9b6 | 2146 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
94bfd31f AJ |
2147 | AsyncCall::Pointer call = JobCallback(33, 5, Dialer, this, ConnStateData::connStateClosed); |
2148 | comm_add_close_handler(clientConnection->fd, call); | |
5529ca8a | 2149 | |
42cbf844 AJ |
2150 | needProxyProtocolHeader_ = port->flags.proxySurrogate; |
2151 | if (needProxyProtocolHeader_) { | |
2152 | if (!proxyProtocolValidateClient()) // will close the connection on failure | |
2153 | return; | |
2154 | } else | |
2155 | whenClientIpKnown(); | |
2156 | ||
9ce4a1eb CT |
2157 | // requires needProxyProtocolHeader_ which is initialized above |
2158 | preservingClientData_ = shouldPreserveClientData(); | |
42cbf844 AJ |
2159 | } |
2160 | ||
2161 | void | |
2162 | ConnStateData::whenClientIpKnown() | |
2163 | { | |
a8c7a110 AR |
2164 | debugs(33, 7, clientConnection->remote); |
2165 | if (Dns::ResolveClientAddressesAsap) | |
94bfd31f | 2166 | fqdncache_gethostbyaddr(clientConnection->remote, FQDN_LOOKUP_IF_MISS); |
89aec9b6 | 2167 | |
94bfd31f | 2168 | clientdbEstablished(clientConnection->remote, 1); |
5529ca8a | 2169 | |
9a0a18de | 2170 | #if USE_DELAY_POOLS |
aee3523a | 2171 | fd_table[clientConnection->fd].clientInfo = nullptr; |
b4cd430a | 2172 | |
e37f1cd4 EB |
2173 | if (!Config.onoff.client_db) |
2174 | return; // client delay pools require client_db | |
b4cd430a | 2175 | |
e37f1cd4 EB |
2176 | const auto &pools = ClientDelayPools::Instance()->pools; |
2177 | if (pools.size()) { | |
e94ff527 | 2178 | ACLFilledChecklist ch(nullptr, nullptr); |
e227da8d | 2179 | fillChecklist(ch); |
2f8abb64 | 2180 | // TODO: we check early to limit error response bandwidth but we |
2efeb0b7 | 2181 | // should recheck when we can honor delay_pool_uses_indirect |
95dc7ff4 | 2182 | for (unsigned int pool = 0; pool < pools.size(); ++pool) { |
b4cd430a | 2183 | |
2efeb0b7 | 2184 | /* pools require explicit 'allow' to assign a client into them */ |
b27668ec EB |
2185 | if (pools[pool]->access) { |
2186 | ch.changeAcl(pools[pool]->access); | |
17e41e03 | 2187 | const auto &answer = ch.fastCheck(); |
06bf5384 | 2188 | if (answer.allowed()) { |
2efeb0b7 AJ |
2189 | |
2190 | /* request client information from db after we did all checks | |
2191 | this will save hash lookup if client failed checks */ | |
92ae4c86 | 2192 | ClientInfo * cli = clientdbGetInfo(clientConnection->remote); |
2efeb0b7 AJ |
2193 | assert(cli); |
2194 | ||
2195 | /* put client info in FDE */ | |
92ae4c86 | 2196 | fd_table[clientConnection->fd].clientInfo = cli; |
2efeb0b7 AJ |
2197 | |
2198 | /* setup write limiter for this request */ | |
2199 | const double burst = floor(0.5 + | |
b27668ec EB |
2200 | (pools[pool]->highwatermark * Config.ClientDelay.initial)/100.0); |
2201 | cli->setWriteLimiter(pools[pool]->rate, burst, pools[pool]->highwatermark); | |
2efeb0b7 AJ |
2202 | break; |
2203 | } else { | |
bf95c10a | 2204 | debugs(83, 4, "Delay pool " << pool << " skipped because ACL " << answer); |
2efeb0b7 | 2205 | } |
b4cd430a CT |
2206 | } |
2207 | } | |
2208 | } | |
2209 | #endif | |
92ae4c86 AR |
2210 | |
2211 | // kids must extend to actually start doing something (e.g., reading) | |
7a2f978b | 2212 | } |
2213 | ||
e227da8d AR |
2214 | Security::IoResult |
2215 | ConnStateData::acceptTls() | |
2216 | { | |
2217 | const auto handshakeResult = Security::Accept(*clientConnection); | |
2218 | ||
2219 | #if USE_OPENSSL | |
2220 | // log ASAP, even if the handshake has not completed (or failed) | |
2221 | const auto fd = clientConnection->fd; | |
2222 | assert(fd >= 0); | |
2223 | keyLogger.checkpoint(*fd_table[fd].ssl, *this); | |
2224 | #else | |
2225 | // TODO: Support fd_table[fd].ssl dereference in other builds. | |
2226 | #endif | |
2227 | ||
2228 | return handshakeResult; | |
2229 | } | |
2230 | ||
e7ce227f | 2231 | /** Handle a new connection on an HTTP socket. */ |
92ae4c86 AR |
2232 | void |
2233 | httpAccept(const CommAcceptCbParams ¶ms) | |
6afea0a4 | 2234 | { |
ad05b958 | 2235 | Assure(params.port); |
6afea0a4 AR |
2236 | |
2237 | // NP: it is possible the port was reconfigured when the call or accept() was queued. | |
2238 | ||
2239 | if (params.flag != Comm::OK) { | |
2240 | // Its possible the call was still queued when the client disconnected | |
ad05b958 | 2241 | debugs(33, 2, params.port->listenConn << ": accept failure: " << xstrerr(params.xerrno)); |
6afea0a4 AR |
2242 | return; |
2243 | } | |
2244 | ||
e7ce227f | 2245 | debugs(33, 4, params.conn << ": accepted"); |
92ae4c86 | 2246 | fd_note(params.conn->fd, "client http connect"); |
ad05b958 EB |
2247 | const auto xact = MasterXaction::MakePortful(params.port); |
2248 | xact->tcpClient = params.conn; | |
6afea0a4 | 2249 | |
6afea0a4 | 2250 | // Socket is ready, setup the connection manager to start using it |
5e77f674 | 2251 | auto *srv = Http::NewServer(xact); |
ad05b958 | 2252 | // XXX: do not abandon the MasterXaction object |
5e77f674 | 2253 | AsyncJob::Start(srv); // usually async-calls readSomeData() |
7a2f978b | 2254 | } |
2255 | ||
86f77270 | 2256 | /// Create TLS connection structure and update fd_table |
157c5ace | 2257 | static bool |
60fcfadf | 2258 | httpsCreate(const ConnStateData *connState, const Security::ContextPointer &ctx) |
ae7ff0b8 | 2259 | { |
60fcfadf AJ |
2260 | const auto conn = connState->clientConnection; |
2261 | if (Security::CreateServerSession(ctx, conn, connState->port->secure, "client https start")) { | |
ca2526bd | 2262 | debugs(33, 5, "will negotiate TLS on " << conn); |
157c5ace | 2263 | return true; |
ae7ff0b8 | 2264 | } |
2265 | ||
51e09c08 | 2266 | debugs(33, DBG_IMPORTANT, "ERROR: could not create TLS server context for " << conn); |
b3a8ae1b | 2267 | conn->close(); |
157c5ace | 2268 | return false; |
ae7ff0b8 | 2269 | } |
2270 | ||
d620ae0e CT |
2271 | /** negotiate an SSL connection */ |
2272 | static void | |
2273 | clientNegotiateSSL(int fd, void *data) | |
2274 | { | |
2275 | ConnStateData *conn = (ConnStateData *)data; | |
51e09c08 | 2276 | |
e227da8d | 2277 | const auto handshakeResult = conn->acceptTls(); |
83b053a0 CT |
2278 | switch (handshakeResult.category) { |
2279 | case Security::IoResult::ioSuccess: | |
2280 | break; | |
2281 | ||
2282 | case Security::IoResult::ioWantRead: | |
2283 | Comm::SetSelect(conn->clientConnection->fd, COMM_SELECT_READ, clientNegotiateSSL, conn, 0); | |
2284 | return; | |
2285 | ||
2286 | case Security::IoResult::ioWantWrite: | |
2287 | Comm::SetSelect(conn->clientConnection->fd, COMM_SELECT_WRITE, clientNegotiateSSL, conn, 0); | |
2288 | return; | |
2289 | ||
2290 | case Security::IoResult::ioError: | |
c59baaa8 | 2291 | debugs(83, (handshakeResult.important ? Important(62) : 2), "ERROR: " << handshakeResult.errorDescription << |
83b053a0 CT |
2292 | " while accepting a TLS connection on " << conn->clientConnection << ": " << handshakeResult.errorDetail); |
2293 | // TODO: No ConnStateData::tunnelOnError() on this forward-proxy code | |
2294 | // path because we cannot know the intended connection target? | |
2295 | conn->updateError(ERR_SECURE_ACCEPT_FAIL, handshakeResult.errorDetail); | |
2296 | conn->clientConnection->close(); | |
d620ae0e | 2297 | return; |
1700fab7 | 2298 | } |
62e76326 | 2299 | |
ad23e748 | 2300 | Security::SessionPointer session(fd_table[fd].ssl); |
51e09c08 AJ |
2301 | |
2302 | #if USE_OPENSSL | |
ad23e748 AJ |
2303 | if (Security::SessionIsResumed(session)) { |
2304 | debugs(83, 2, "Session " << SSL_get_session(session.get()) << | |
2305 | " reused on FD " << fd << " (" << fd_table[fd].ipaddr << | |
2306 | ":" << (int)fd_table[fd].remote_port << ")"); | |
6de9e64b | 2307 | } else { |
014adac1 | 2308 | if (Debug::Enabled(83, 4)) { |
6de9e64b | 2309 | /* Write out the SSL session details.. actually the call below, but |
2310 | * OpenSSL headers do strange typecasts confusing GCC.. */ | |
016c612a | 2311 | /* PEM_write_SSL_SESSION(DebugStream(), SSL_get_session(ssl)); */ |
afdd443f | 2312 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x00908000L |
ad23e748 | 2313 | PEM_ASN1_write(reinterpret_cast<i2d_of_void *>(i2d_SSL_SESSION), |
016c612a | 2314 | PEM_STRING_SSL_SESSION, DebugStream(), |
bba00f17 | 2315 | reinterpret_cast<char *>(SSL_get_session(session.get())), |
ad23e748 | 2316 | nullptr, nullptr, 0, nullptr, nullptr); |
2930f303 | 2317 | |
0fd2205b | 2318 | #elif (ALLOW_ALWAYS_SSL_SESSION_DETAIL == 1) |
2930f303 | 2319 | |
0fd2205b | 2320 | /* When using gcc 3.3.x and OpenSSL 0.9.7x sometimes a compile error can occur here. |
2321 | * This is caused by an unpredicatble gcc behaviour on a cast of the first argument | |
2322 | * of PEM_ASN1_write(). For this reason this code section is disabled. To enable it, | |
2323 | * define ALLOW_ALWAYS_SSL_SESSION_DETAIL=1. | |
2324 | * Because there are two possible usable cast, if you get an error here, try the other | |
2325 | * commented line. */ | |
2326 | ||
ad23e748 | 2327 | PEM_ASN1_write((int(*)())i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, |
016c612a | 2328 | DebugStream(), |
bba00f17 | 2329 | reinterpret_cast<char *>(SSL_get_session(session.get())), |
ad23e748 AJ |
2330 | nullptr, nullptr, 0, nullptr, nullptr); |
2331 | /* PEM_ASN1_write((int(*)(...))i2d_SSL_SESSION, PEM_STRING_SSL_SESSION, | |
016c612a | 2332 | DebugStream(), |
bba00f17 | 2333 | reinterpret_cast<char *>(SSL_get_session(session.get())), |
ad23e748 AJ |
2334 | nullptr, nullptr, 0, nullptr, nullptr); |
2335 | */ | |
0e33d58c | 2336 | #else |
ad23e748 | 2337 | debugs(83, 4, "With " OPENSSL_VERSION_TEXT ", session details are available only defining ALLOW_ALWAYS_SSL_SESSION_DETAIL=1 in the source."); |
0fd2205b | 2338 | |
0e33d58c | 2339 | #endif |
6de9e64b | 2340 | /* Note: This does not automatically fflush the log file.. */ |
2341 | } | |
2342 | ||
ad23e748 AJ |
2343 | debugs(83, 2, "New session " << SSL_get_session(session.get()) << |
2344 | " on FD " << fd << " (" << fd_table[fd].ipaddr << ":" << | |
2345 | fd_table[fd].remote_port << ")"); | |
6de9e64b | 2346 | } |
51e09c08 AJ |
2347 | #else |
2348 | debugs(83, 2, "TLS session reuse not yet implemented."); | |
2349 | #endif | |
6de9e64b | 2350 | |
2bcab852 | 2351 | // Connection established. Retrieve TLS connection parameters for logging. |
ad23e748 | 2352 | conn->clientConnection->tlsNegotiations()->retrieveNegotiatedInfo(session); |
1f7c9178 | 2353 | |
51e09c08 | 2354 | #if USE_OPENSSL |
ad23e748 | 2355 | X509 *client_cert = SSL_get_peer_certificate(session.get()); |
62e76326 | 2356 | |
ad23e748 AJ |
2357 | if (client_cert) { |
2358 | debugs(83, 3, "FD " << fd << " client certificate: subject: " << | |
907831e6 | 2359 | Security::SubjectName(*client_cert)); |
bf8fe701 | 2360 | |
ad23e748 | 2361 | debugs(83, 3, "FD " << fd << " client certificate: issuer: " << |
907831e6 | 2362 | Security::IssuerName(*client_cert)); |
1f7c9178 | 2363 | |
62e76326 | 2364 | X509_free(client_cert); |
1f7c9178 | 2365 | } else { |
51e09c08 | 2366 | debugs(83, 5, "FD " << fd << " has no client certificate."); |
1f7c9178 | 2367 | } |
51e09c08 AJ |
2368 | #else |
2369 | debugs(83, 2, "Client certificate requesting not yet implemented."); | |
2370 | #endif | |
1f7c9178 | 2371 | |
83b053a0 CT |
2372 | // If we are called, then bumped CONNECT has succeeded. Finalize it. |
2373 | if (auto xact = conn->pipeline.front()) { | |
2374 | if (xact->http && xact->http->request && xact->http->request->method == Http::METHOD_CONNECT) | |
2375 | xact->finished(); | |
2376 | // cannot proceed with encryption if requests wait for plain responses | |
2377 | Must(conn->pipeline.empty()); | |
2378 | } | |
2379 | /* careful: finished() above frees request, host, etc. */ | |
2380 | ||
a46d2c0e | 2381 | conn->readSomeData(); |
1f7c9178 | 2382 | } |
2383 | ||
379e8c1c | 2384 | /** |
0476ec45 AJ |
2385 | * If Security::ContextPointer is given, starts reading the TLS handshake. |
2386 | * Otherwise, calls switchToHttps to generate a dynamic Security::ContextPointer. | |
379e8c1c AR |
2387 | */ |
2388 | static void | |
0476ec45 | 2389 | httpsEstablish(ConnStateData *connState, const Security::ContextPointer &ctx) |
379e8c1c | 2390 | { |
379e8c1c AR |
2391 | assert(connState); |
2392 | const Comm::ConnectionPointer &details = connState->clientConnection; | |
2393 | ||
60fcfadf | 2394 | if (!ctx || !httpsCreate(connState, ctx)) |
379e8c1c AR |
2395 | return; |
2396 | ||
83b053a0 | 2397 | connState->resetReadTimeout(Config.Timeout.request); |
379e8c1c | 2398 | |
36048c42 | 2399 | Comm::SetSelect(details->fd, COMM_SELECT_READ, clientNegotiateSSL, connState, 0); |
379e8c1c AR |
2400 | } |
2401 | ||
51e09c08 | 2402 | #if USE_OPENSSL |
379e8c1c | 2403 | /** |
87f237a9 | 2404 | * A callback function to use with the ACLFilledChecklist callback. |
379e8c1c AR |
2405 | */ |
2406 | static void | |
329c128c | 2407 | httpsSslBumpAccessCheckDone(Acl::Answer answer, void *data) |
379e8c1c AR |
2408 | { |
2409 | ConnStateData *connState = (ConnStateData *) data; | |
2410 | ||
7a957a93 | 2411 | // if the connection is closed or closing, just return. |
379e8c1c AR |
2412 | if (!connState->isOpen()) |
2413 | return; | |
2414 | ||
06bf5384 | 2415 | if (answer.allowed()) { |
bf352fb2 | 2416 | debugs(33, 2, "sslBump action " << Ssl::bumpMode(answer.kind) << "needed for " << connState->clientConnection); |
08097970 | 2417 | connState->sslBumpMode = static_cast<Ssl::BumpMode>(answer.kind); |
379e8c1c | 2418 | } else { |
bf352fb2 CT |
2419 | debugs(33, 3, "sslBump not needed for " << connState->clientConnection); |
2420 | connState->sslBumpMode = Ssl::bumpSplice; | |
2421 | } | |
2422 | ||
2423 | if (connState->sslBumpMode == Ssl::bumpTerminate) { | |
2424 | connState->clientConnection->close(); | |
2425 | return; | |
9e104535 | 2426 | } |
bf352fb2 | 2427 | |
efda53c5 CT |
2428 | if (!connState->fakeAConnectRequest("ssl-bump", connState->inBuf)) |
2429 | connState->clientConnection->close(); | |
a30b692c | 2430 | } |
51e09c08 | 2431 | #endif |
379e8c1c | 2432 | |
63be0a78 | 2433 | /** handle a new HTTPS connection */ |
1f7c9178 | 2434 | static void |
449f0115 | 2435 | httpsAccept(const CommAcceptCbParams ¶ms) |
1f7c9178 | 2436 | { |
ad05b958 | 2437 | Assure(params.port); |
94bfd31f | 2438 | |
c0ff709f | 2439 | // NP: it is possible the port was reconfigured when the call or accept() was queued. |
c4b7a5a9 | 2440 | |
c8407295 | 2441 | if (params.flag != Comm::OK) { |
cbff89ba | 2442 | // Its possible the call was still queued when the client disconnected |
ad05b958 | 2443 | debugs(33, 2, "httpsAccept: " << params.port->listenConn << ": accept failure: " << xstrerr(params.xerrno)); |
62e76326 | 2444 | return; |
c4b7a5a9 | 2445 | } |
62e76326 | 2446 | |
ad05b958 EB |
2447 | const auto xact = MasterXaction::MakePortful(params.port); |
2448 | xact->tcpClient = params.conn; | |
2449 | ||
bf95c10a | 2450 | debugs(33, 4, params.conn << " accepted, starting SSL negotiation."); |
449f0115 | 2451 | fd_note(params.conn->fd, "client https connect"); |
62e76326 | 2452 | |
89aec9b6 | 2453 | // Socket is ready, setup the connection manager to start using it |
5e77f674 | 2454 | auto *srv = Https::NewServer(xact); |
ad05b958 | 2455 | // XXX: do not abandon the MasterXaction object |
5e77f674 | 2456 | AsyncJob::Start(srv); // usually async-calls postHttpsAccept() |
92ae4c86 | 2457 | } |
62e76326 | 2458 | |
92ae4c86 AR |
2459 | void |
2460 | ConnStateData::postHttpsAccept() | |
2461 | { | |
b3cb9958 | 2462 | if (port->flags.tunnelSslBumping) { |
51e09c08 | 2463 | #if USE_OPENSSL |
e7ce227f | 2464 | debugs(33, 5, "accept transparent connection: " << clientConnection); |
62e76326 | 2465 | |
379e8c1c | 2466 | if (!Config.accessList.ssl_bump) { |
b3cb9958 | 2467 | httpsSslBumpAccessCheckDone(ACCESS_DENIED, this); |
379e8c1c AR |
2468 | return; |
2469 | } | |
87f237a9 | 2470 | |
ad05b958 | 2471 | const auto mx = MasterXaction::MakePortful(port); |
5ceaee75 | 2472 | mx->tcpClient = clientConnection; |
ccfbe8f4 | 2473 | // Create a fake HTTP request and ALE for the ssl_bump ACL check, |
38450a50 | 2474 | // using tproxy/intercept provided destination IP and port. |
ccfbe8f4 AR |
2475 | // XXX: Merge with subsequent fakeAConnectRequest(), buildFakeRequest(). |
2476 | // XXX: Do this earlier (e.g., in Http[s]::One::Server constructor). | |
5ceaee75 | 2477 | HttpRequest *request = new HttpRequest(mx); |
379e8c1c | 2478 | static char ip[MAX_IPSTRLEN]; |
92ae4c86 | 2479 | assert(clientConnection->flags & (COMM_TRANSPARENT | COMM_INTERCEPTION)); |
851feda6 | 2480 | request->url.host(clientConnection->local.toStr(ip, sizeof(ip))); |
5c51bffb | 2481 | request->url.port(clientConnection->local.port()); |
b3cb9958 | 2482 | request->myportname = port->name; |
ccfbe8f4 AR |
2483 | const AccessLogEntry::Pointer connectAle = new AccessLogEntry; |
2484 | CodeContext::Reset(connectAle); | |
2485 | // TODO: Use these request/ALE when waiting for new bumped transactions. | |
87f237a9 | 2486 | |
c56edb4a | 2487 | auto acl_checklist = ACLFilledChecklist::Make(Config.accessList.ssl_bump, request); |
e227da8d | 2488 | fillChecklist(*acl_checklist); |
d4ddb3e6 | 2489 | // Build a local AccessLogEntry to allow requiresAle() acls work |
ccfbe8f4 | 2490 | acl_checklist->al = connectAle; |
d4ddb3e6 CT |
2491 | acl_checklist->al->cache.start_time = current_time; |
2492 | acl_checklist->al->tcpClient = clientConnection; | |
2493 | acl_checklist->al->cache.port = port; | |
2494 | acl_checklist->al->cache.caddr = log_addr; | |
36c774f7 | 2495 | acl_checklist->al->proxyProtocolHeader = proxyProtocolHeader_; |
83b053a0 | 2496 | acl_checklist->al->updateError(bareError); |
542e1a7a | 2497 | HTTPMSGUNLOCK(acl_checklist->al->request); |
d4ddb3e6 CT |
2498 | acl_checklist->al->request = request; |
2499 | HTTPMSGLOCK(acl_checklist->al->request); | |
cb365059 EB |
2500 | Http::StreamPointer context = pipeline.front(); |
2501 | ClientHttpRequest *http = context ? context->http : nullptr; | |
2502 | const char *log_uri = http ? http->log_uri : nullptr; | |
2503 | acl_checklist->syncAle(request, log_uri); | |
c56edb4a | 2504 | ACLFilledChecklist::NonBlockingCheck(std::move(acl_checklist), httpsSslBumpAccessCheckDone, this); |
51e09c08 AJ |
2505 | #else |
2506 | fatal("FATAL: SSL-Bump requires --with-openssl"); | |
2507 | #endif | |
379e8c1c AR |
2508 | return; |
2509 | } else { | |
0476ec45 | 2510 | httpsEstablish(this, port->secure.staticContext); |
379e8c1c | 2511 | } |
1f7c9178 | 2512 | } |
2513 | ||
51e09c08 | 2514 | #if USE_OPENSSL |
95d2589c | 2515 | void |
24438ec5 | 2516 | ConnStateData::sslCrtdHandleReplyWrapper(void *data, const Helper::Reply &reply) |
ae7ff0b8 | 2517 | { |
95d2589c CT |
2518 | ConnStateData * state_data = (ConnStateData *)(data); |
2519 | state_data->sslCrtdHandleReply(reply); | |
2520 | } | |
ae7ff0b8 | 2521 | |
95d2589c | 2522 | void |
24438ec5 | 2523 | ConnStateData::sslCrtdHandleReply(const Helper::Reply &reply) |
95d2589c | 2524 | { |
b418d9c8 CT |
2525 | if (!isOpen()) { |
2526 | debugs(33, 3, "Connection gone while waiting for ssl_crtd helper reply; helper reply:" << reply); | |
2527 | return; | |
2528 | } | |
2529 | ||
2428ce02 | 2530 | if (reply.result == Helper::BrokenHelper) { |
9ce4a1eb | 2531 | debugs(33, 5, "Certificate for " << tlsConnectHostOrIp << " cannot be generated. ssl_crtd response: " << reply); |
5955f162 | 2532 | } else if (!reply.other().hasContent()) { |
bf95c10a | 2533 | debugs(1, DBG_IMPORTANT, "\"ssl_crtd\" helper returned <NULL> reply."); |
95d2589c | 2534 | } else { |
ff2d7d92 | 2535 | Ssl::CrtdMessage reply_message(Ssl::CrtdMessage::REPLY); |
0272dd08 | 2536 | if (reply_message.parse(reply.other().content(), reply.other().contentSize()) != Ssl::CrtdMessage::OK) { |
9ce4a1eb | 2537 | debugs(33, 5, "Reply from ssl_crtd for " << tlsConnectHostOrIp << " is incorrect"); |
95d2589c | 2538 | } else { |
2428ce02 | 2539 | if (reply.result != Helper::Okay) { |
9ce4a1eb | 2540 | debugs(33, 5, "Certificate for " << tlsConnectHostOrIp << " cannot be generated. ssl_crtd response: " << reply_message.getBody()); |
95d2589c | 2541 | } else { |
2f8abb64 | 2542 | debugs(33, 5, "Certificate for " << tlsConnectHostOrIp << " was successfully received from ssl_crtd"); |
a9c2dd2f | 2543 | if (sslServerBump && (sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare)) { |
d620ae0e | 2544 | doPeekAndSpliceStep(); |
33cc0629 | 2545 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e CT |
2546 | bool ret = Ssl::configureSSLUsingPkeyAndCertFromMemory(ssl, reply_message.getBody().c_str(), *port); |
2547 | if (!ret) | |
e4f14091 | 2548 | debugs(33, 5, "Failed to set certificates to ssl object for PeekAndSplice mode"); |
d8f0ceab | 2549 | |
1c1fae0f | 2550 | Security::ContextPointer ctx(Security::GetFrom(fd_table[clientConnection->fd].ssl)); |
b23f5f9c | 2551 | Ssl::configureUnconfiguredSslContext(ctx, signAlgorithm, *port); |
d620ae0e | 2552 | } else { |
cf487124 | 2553 | Security::ContextPointer ctx(Ssl::GenerateSslContextUsingPkeyAndCertFromMemory(reply_message.getBody().c_str(), port->secure, (signAlgorithm == Ssl::algSignTrusted))); |
5107d2c4 CT |
2554 | if (ctx && !sslBumpCertKey.isEmpty()) |
2555 | storeTlsContextToCache(sslBumpCertKey, ctx); | |
2556 | getSslContextDone(ctx); | |
d620ae0e | 2557 | } |
95d2589c CT |
2558 | return; |
2559 | } | |
2560 | } | |
2561 | } | |
0476ec45 AJ |
2562 | Security::ContextPointer nil; |
2563 | getSslContextDone(nil); | |
95d2589c | 2564 | } |
ae7ff0b8 | 2565 | |
06997a38 | 2566 | void ConnStateData::buildSslCertGenerationParams(Ssl::CertificateProperties &certProperties) |
fb2178bb | 2567 | { |
9ce4a1eb | 2568 | certProperties.commonName = sslCommonName_.isEmpty() ? tlsConnectHostOrIp.c_str() : sslCommonName_.c_str(); |
fb2178bb | 2569 | |
5107d2c4 CT |
2570 | const bool connectedOk = sslServerBump && sslServerBump->connectedOk(); |
2571 | if (connectedOk) { | |
fd4624d7 | 2572 | if (X509 *mimicCert = sslServerBump->serverCert.get()) |
59a49556 CT |
2573 | certProperties.mimicCert.resetAndLock(mimicCert); |
2574 | ||
e227da8d AR |
2575 | ACLFilledChecklist checklist(nullptr, sslServerBump->request.getRaw()); |
2576 | fillChecklist(checklist); | |
59a49556 | 2577 | |
aee3523a | 2578 | for (sslproxy_cert_adapt *ca = Config.ssl_client.cert_adapt; ca != nullptr; ca = ca->next) { |
7a957a93 | 2579 | // If the algorithm already set, then ignore it. |
a06042fa | 2580 | if ((ca->alg == Ssl::algSetCommonName && certProperties.setCommonName) || |
87f237a9 A |
2581 | (ca->alg == Ssl::algSetValidAfter && certProperties.setValidAfter) || |
2582 | (ca->alg == Ssl::algSetValidBefore && certProperties.setValidBefore) ) | |
a06042fa CT |
2583 | continue; |
2584 | ||
06bf5384 | 2585 | if (ca->aclList && checklist.fastCheck(ca->aclList).allowed()) { |
59a49556 CT |
2586 | const char *alg = Ssl::CertAdaptAlgorithmStr[ca->alg]; |
2587 | const char *param = ca->param; | |
87f237a9 | 2588 | |
7a957a93 AR |
2589 | // For parameterless CN adaptation, use hostname from the |
2590 | // CONNECT request. | |
a06042fa | 2591 | if (ca->alg == Ssl::algSetCommonName) { |
59a49556 | 2592 | if (!param) |
9ce4a1eb | 2593 | param = tlsConnectHostOrIp.c_str(); |
59a49556 CT |
2594 | certProperties.commonName = param; |
2595 | certProperties.setCommonName = true; | |
87f237a9 | 2596 | } else if (ca->alg == Ssl::algSetValidAfter) |
59a49556 | 2597 | certProperties.setValidAfter = true; |
87f237a9 | 2598 | else if (ca->alg == Ssl::algSetValidBefore) |
59a49556 CT |
2599 | certProperties.setValidBefore = true; |
2600 | ||
bf95c10a | 2601 | debugs(33, 5, "Matches certificate adaptation aglorithm: " << |
8f9720ce | 2602 | alg << " param: " << (param ? param : "-")); |
aebe6888 | 2603 | } |
fb2178bb | 2604 | } |
aebe6888 | 2605 | |
59a49556 | 2606 | certProperties.signAlgorithm = Ssl::algSignEnd; |
aee3523a | 2607 | for (sslproxy_cert_sign *sg = Config.ssl_client.cert_sign; sg != nullptr; sg = sg->next) { |
06bf5384 | 2608 | if (sg->aclList && checklist.fastCheck(sg->aclList).allowed()) { |
59a49556 CT |
2609 | certProperties.signAlgorithm = (Ssl::CertSignAlgorithm)sg->alg; |
2610 | break; | |
2611 | } | |
aebe6888 | 2612 | } |
6b2b6cfe CT |
2613 | } else {// did not try to connect (e.g. client-first) or failed to connect |
2614 | // In case of an error while connecting to the secure server, use a | |
2615 | // trusted certificate, with no mimicked fields and no adaptation | |
2616 | // algorithms. There is nothing we can mimic, so we want to minimize the | |
2617 | // number of warnings the user will have to see to get to the error page. | |
2618 | // We will close the connection, so that the trust is not extended to | |
2619 | // non-Squid content. | |
59a49556 | 2620 | certProperties.signAlgorithm = Ssl::algSignTrusted; |
aebe6888 CT |
2621 | } |
2622 | ||
10d914f6 | 2623 | assert(certProperties.signAlgorithm != Ssl::algSignEnd); |
aebe6888 CT |
2624 | |
2625 | if (certProperties.signAlgorithm == Ssl::algSignUntrusted) { | |
51e09c08 AJ |
2626 | assert(port->secure.untrustedSigningCa.cert); |
2627 | certProperties.signWithX509.resetAndLock(port->secure.untrustedSigningCa.cert.get()); | |
2628 | certProperties.signWithPkey.resetAndLock(port->secure.untrustedSigningCa.pkey.get()); | |
87f237a9 | 2629 | } else { |
51e09c08 AJ |
2630 | assert(port->secure.signingCa.cert.get()); |
2631 | certProperties.signWithX509.resetAndLock(port->secure.signingCa.cert.get()); | |
aebe6888 | 2632 | |
51e09c08 AJ |
2633 | if (port->secure.signingCa.pkey) |
2634 | certProperties.signWithPkey.resetAndLock(port->secure.signingCa.pkey.get()); | |
aebe6888 CT |
2635 | } |
2636 | signAlgorithm = certProperties.signAlgorithm; | |
3c26b00a CT |
2637 | |
2638 | certProperties.signHash = Ssl::DefaultSignHash; | |
fb2178bb CT |
2639 | } |
2640 | ||
5107d2c4 CT |
2641 | Security::ContextPointer |
2642 | ConnStateData::getTlsContextFromCache(const SBuf &cacheKey, const Ssl::CertificateProperties &certProperties) | |
2643 | { | |
2644 | debugs(33, 5, "Finding SSL certificate for " << cacheKey << " in cache"); | |
2645 | Ssl::LocalContextStorage * ssl_ctx_cache = Ssl::TheGlobalContextStorage.getLocalStorage(port->s); | |
72247610 | 2646 | if (const auto ctx = ssl_ctx_cache ? ssl_ctx_cache->get(cacheKey) : nullptr) { |
5107d2c4 CT |
2647 | if (Ssl::verifySslCertificate(*ctx, certProperties)) { |
2648 | debugs(33, 5, "Cached SSL certificate for " << certProperties.commonName << " is valid"); | |
2649 | return *ctx; | |
2650 | } else { | |
2651 | debugs(33, 5, "Cached SSL certificate for " << certProperties.commonName << " is out of date. Delete this certificate from cache"); | |
2652 | if (ssl_ctx_cache) | |
2653 | ssl_ctx_cache->del(cacheKey); | |
2654 | } | |
2655 | } | |
2656 | return Security::ContextPointer(nullptr); | |
2657 | } | |
2658 | ||
2659 | void | |
2660 | ConnStateData::storeTlsContextToCache(const SBuf &cacheKey, Security::ContextPointer &ctx) | |
2661 | { | |
2662 | Ssl::LocalContextStorage *ssl_ctx_cache = Ssl::TheGlobalContextStorage.getLocalStorage(port->s); | |
72247610 | 2663 | if (!ssl_ctx_cache || !ssl_ctx_cache->add(cacheKey, ctx)) { |
5107d2c4 CT |
2664 | // If it is not in storage delete after using. Else storage deleted it. |
2665 | fd_table[clientConnection->fd].dynamicTlsContext = ctx; | |
2666 | } | |
2667 | } | |
2668 | ||
1ce2822d | 2669 | void |
95d2589c CT |
2670 | ConnStateData::getSslContextStart() |
2671 | { | |
cf487124 | 2672 | if (port->secure.generateHostCertificates) { |
aebe6888 | 2673 | Ssl::CertificateProperties certProperties; |
06997a38 | 2674 | buildSslCertGenerationParams(certProperties); |
fb2178bb | 2675 | |
d620ae0e | 2676 | // Disable caching for bumpPeekAndSplice mode |
a9c2dd2f | 2677 | if (!(sslServerBump && (sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare))) { |
5107d2c4 CT |
2678 | sslBumpCertKey.clear(); |
2679 | Ssl::InRamCertificateDbKey(certProperties, sslBumpCertKey); | |
2680 | assert(!sslBumpCertKey.isEmpty()); | |
2681 | ||
2682 | Security::ContextPointer ctx(getTlsContextFromCache(sslBumpCertKey, certProperties)); | |
2683 | if (ctx) { | |
2684 | getSslContextDone(ctx); | |
2685 | return; | |
95d2589c | 2686 | } |
95d2589c CT |
2687 | } |
2688 | ||
b5faa519 | 2689 | #if USE_SSL_CRTD |
00fc192d | 2690 | try { |
bf95c10a | 2691 | debugs(33, 5, "Generating SSL certificate for " << certProperties.commonName << " using ssl_crtd."); |
ff2d7d92 | 2692 | Ssl::CrtdMessage request_message(Ssl::CrtdMessage::REQUEST); |
87f237a9 A |
2693 | request_message.setCode(Ssl::CrtdMessage::code_new_certificate); |
2694 | request_message.composeRequest(certProperties); | |
bf95c10a | 2695 | debugs(33, 5, "SSL crtd request: " << request_message.compose().c_str()); |
23da195f | 2696 | Ssl::Helper::Submit(request_message, sslCrtdHandleReplyWrapper, this); |
87f237a9 A |
2697 | return; |
2698 | } catch (const std::exception &e) { | |
00fc192d AR |
2699 | debugs(33, DBG_IMPORTANT, "ERROR: Failed to compose ssl_crtd " << |
2700 | "request for " << certProperties.commonName << | |
2701 | " certificate: " << e.what() << "; will now block to " << | |
2702 | "generate that certificate."); | |
2703 | // fall through to do blocking in-process generation. | |
2704 | } | |
2705 | #endif // USE_SSL_CRTD | |
2706 | ||
bf95c10a | 2707 | debugs(33, 5, "Generating SSL certificate for " << certProperties.commonName); |
a9c2dd2f | 2708 | if (sslServerBump && (sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare)) { |
d620ae0e | 2709 | doPeekAndSpliceStep(); |
33cc0629 | 2710 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e | 2711 | if (!Ssl::configureSSL(ssl, certProperties, *port)) |
e4f14091 | 2712 | debugs(33, 5, "Failed to set certificates to ssl object for PeekAndSplice mode"); |
d8f0ceab | 2713 | |
1c1fae0f | 2714 | Security::ContextPointer ctx(Security::GetFrom(fd_table[clientConnection->fd].ssl)); |
b23f5f9c | 2715 | Ssl::configureUnconfiguredSslContext(ctx, certProperties.signAlgorithm, *port); |
d620ae0e | 2716 | } else { |
cf487124 | 2717 | Security::ContextPointer dynCtx(Ssl::GenerateSslContext(certProperties, port->secure, (signAlgorithm == Ssl::algSignTrusted))); |
5107d2c4 CT |
2718 | if (dynCtx && !sslBumpCertKey.isEmpty()) |
2719 | storeTlsContextToCache(sslBumpCertKey, dynCtx); | |
2720 | getSslContextDone(dynCtx); | |
d620ae0e | 2721 | } |
1ce2822d | 2722 | return; |
95d2589c | 2723 | } |
0476ec45 AJ |
2724 | |
2725 | Security::ContextPointer nil; | |
2726 | getSslContextDone(nil); | |
95d2589c CT |
2727 | } |
2728 | ||
1ce2822d | 2729 | void |
5107d2c4 | 2730 | ConnStateData::getSslContextDone(Security::ContextPointer &ctx) |
95d2589c | 2731 | { |
cf487124 | 2732 | if (port->secure.generateHostCertificates && !ctx) { |
9ce4a1eb | 2733 | debugs(33, 2, "Failed to generate TLS context for " << tlsConnectHostOrIp); |
95d2589c CT |
2734 | } |
2735 | ||
a1b1756c | 2736 | // If generated ssl context = nullptr, try to use static ssl context. |
0476ec45 | 2737 | if (!ctx) { |
80b5995a AJ |
2738 | if (!port->secure.staticContext) { |
2739 | debugs(83, DBG_IMPORTANT, "Closing " << clientConnection->remote << " as lacking TLS context"); | |
73c36fd9 | 2740 | clientConnection->close(); |
1ce2822d | 2741 | return; |
95d2589c | 2742 | } else { |
80b5995a | 2743 | debugs(33, 5, "Using static TLS context."); |
0476ec45 | 2744 | ctx = port->secure.staticContext; |
95d2589c CT |
2745 | } |
2746 | } | |
ae7ff0b8 | 2747 | |
60fcfadf | 2748 | if (!httpsCreate(this, ctx)) |
1ce2822d | 2749 | return; |
ae7ff0b8 | 2750 | |
4e67d484 CT |
2751 | // bumped intercepted conns should already have Config.Timeout.request set |
2752 | // but forwarded connections may only have Config.Timeout.lifetime. [Re]set | |
2753 | // to make sure the connection does not get stuck on non-SSL clients. | |
83b053a0 | 2754 | resetReadTimeout(Config.Timeout.request); |
ae7ff0b8 | 2755 | |
ae7ff0b8 | 2756 | switchedToHttps_ = true; |
36698640 CT |
2757 | |
2758 | auto ssl = fd_table[clientConnection->fd].ssl.get(); | |
2759 | BIO *b = SSL_get_rbio(ssl); | |
2a268a06 | 2760 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(BIO_get_data(b)); |
36698640 CT |
2761 | bio->setReadBufData(inBuf); |
2762 | inBuf.clear(); | |
2763 | clientNegotiateSSL(clientConnection->fd, this); | |
ae7ff0b8 | 2764 | } |
2765 | ||
1ce2822d | 2766 | void |
f5e17947 | 2767 | ConnStateData::switchToHttps(ClientHttpRequest *http, Ssl::BumpMode bumpServerMode) |
95d2589c CT |
2768 | { |
2769 | assert(!switchedToHttps_); | |
f5e17947 CT |
2770 | Must(http->request); |
2771 | auto &request = http->request; | |
95d2589c | 2772 | |
9ce4a1eb CT |
2773 | // Depending on receivedFirstByte_, we are at the start of either an |
2774 | // established CONNECT tunnel with the client or an intercepted TCP (and | |
2775 | // presumably TLS) connection from the client. Expect TLS Client Hello. | |
2776 | const auto insideConnectTunnel = receivedFirstByte_; | |
2777 | debugs(33, 5, (insideConnectTunnel ? "post-CONNECT " : "raw TLS ") << clientConnection); | |
2778 | ||
2779 | tlsConnectHostOrIp = request->url.hostOrIp(); | |
0a57a661 | 2780 | tlsConnectPort = request->url.port(); |
5c51bffb | 2781 | resetSslCommonName(request->url.host()); |
95d2589c | 2782 | |
83d4cd15 CT |
2783 | // We are going to read new request |
2784 | flags.readMore = true; | |
95d2589c | 2785 | |
4599cded AJ |
2786 | // keep version major.minor details the same. |
2787 | // but we are now performing the HTTPS handshake traffic | |
2788 | transferProtocol.protocol = AnyP::PROTO_HTTPS; | |
2789 | ||
2bd84e5f CT |
2790 | // If sslServerBump is set, then we have decided to deny CONNECT |
2791 | // and now want to switch to SSL to send the error to the client | |
2792 | // without even peeking at the origin server certificate. | |
caf3666d | 2793 | if (bumpServerMode == Ssl::bumpServerFirst && !sslServerBump) { |
e857372a | 2794 | request->flags.sslPeek = true; |
f5e17947 | 2795 | sslServerBump = new Ssl::ServerBump(http); |
e1f72a8b | 2796 | } else if (bumpServerMode == Ssl::bumpPeek || bumpServerMode == Ssl::bumpStare) { |
d620ae0e | 2797 | request->flags.sslPeek = true; |
f5e17947 | 2798 | sslServerBump = new Ssl::ServerBump(http, nullptr, bumpServerMode); |
36698640 | 2799 | } |
3cae14a6 | 2800 | |
36698640 CT |
2801 | // commSetConnTimeout() was called for this request before we switched. |
2802 | // Fix timeout to request_start_timeout | |
83b053a0 | 2803 | resetReadTimeout(Config.Timeout.request_start_timeout); |
36698640 CT |
2804 | // Also reset receivedFirstByte_ flag to allow this timeout work in the case we have |
2805 | // a bumbed "connect" request on non transparent port. | |
2806 | receivedFirstByte_ = false; | |
2807 | // Get more data to peek at Tls | |
d20cf186 | 2808 | parsingTlsHandshake = true; |
9ce4a1eb CT |
2809 | |
2810 | // If the protocol has changed, then reset preservingClientData_. | |
2811 | // Otherwise, its value initially set in start() is still valid/fresh. | |
2812 | // shouldPreserveClientData() uses parsingTlsHandshake which is reset above. | |
2813 | if (insideConnectTunnel) | |
2814 | preservingClientData_ = shouldPreserveClientData(); | |
2815 | ||
36698640 CT |
2816 | readSomeData(); |
2817 | } | |
2818 | ||
2819 | void | |
d20cf186 | 2820 | ConnStateData::parseTlsHandshake() |
36698640 | 2821 | { |
d20cf186 AR |
2822 | Must(parsingTlsHandshake); |
2823 | ||
2824 | assert(!inBuf.isEmpty()); | |
36698640 | 2825 | receivedFirstByte(); |
d20cf186 AR |
2826 | fd_note(clientConnection->fd, "Parsing TLS handshake"); |
2827 | ||
83b053a0 CT |
2828 | // stops being nil if we fail to parse the handshake |
2829 | ErrorDetail::Pointer parseErrorDetails; | |
2830 | ||
d20cf186 AR |
2831 | try { |
2832 | if (!tlsParser.parseHello(inBuf)) { | |
2833 | // need more data to finish parsing | |
2834 | readSomeData(); | |
2835 | return; | |
2836 | } | |
2837 | } | |
83b053a0 CT |
2838 | catch (const TextException &ex) { |
2839 | debugs(83, 2, "exception: " << ex); | |
2840 | parseErrorDetails = new ExceptionErrorDetail(ex.id()); | |
2841 | } | |
2842 | catch (...) { | |
2843 | debugs(83, 2, "exception: " << CurrentException); | |
2844 | static const auto d = MakeNamedErrorDetail("TLS_ACCEPT_PARSE"); | |
2845 | parseErrorDetails = d; | |
d20cf186 | 2846 | } |
36698640 | 2847 | |
d20cf186 | 2848 | parsingTlsHandshake = false; |
36698640 | 2849 | |
75f6c253 CT |
2850 | // client data may be needed for splicing and for |
2851 | // tunneling unsupportedProtocol after an error | |
2852 | preservedClientData = inBuf; | |
6b2b6cfe | 2853 | |
d20cf186 AR |
2854 | // Even if the parser failed, each TLS detail should either be set |
2855 | // correctly or still be "unknown"; copying unknown detail is a no-op. | |
8d9e6d7f CT |
2856 | Security::TlsDetails::Pointer const &details = tlsParser.details; |
2857 | clientConnection->tlsNegotiations()->retrieveParsedInfo(details); | |
2858 | if (details && !details->serverName.isEmpty()) { | |
2859 | resetSslCommonName(details->serverName.c_str()); | |
4f6990ec | 2860 | tlsClientSni_ = details->serverName; |
8d9e6d7f | 2861 | } |
36698640 CT |
2862 | |
2863 | // We should disable read/write handlers | |
508e3438 | 2864 | Comm::ResetSelect(clientConnection->fd); |
36698640 | 2865 | |
83b053a0 | 2866 | if (parseErrorDetails) { |
6b2b6cfe CT |
2867 | Http::StreamPointer context = pipeline.front(); |
2868 | Must(context && context->http); | |
2869 | HttpRequest::Pointer request = context->http->request; | |
2870 | debugs(83, 5, "Got something other than TLS Client Hello. Cannot SslBump."); | |
83b053a0 | 2871 | updateError(ERR_PROTOCOL_UNKNOWN, parseErrorDetails); |
eb026889 | 2872 | if (!tunnelOnError(ERR_PROTOCOL_UNKNOWN)) |
6b2b6cfe CT |
2873 | clientConnection->close(); |
2874 | return; | |
2875 | } | |
2876 | ||
2877 | if (!sslServerBump || sslServerBump->act.step1 == Ssl::bumpClientFirst) { // Either means client-first. | |
36698640 | 2878 | getSslContextStart(); |
e1f72a8b | 2879 | return; |
36698640 | 2880 | } else if (sslServerBump->act.step1 == Ssl::bumpServerFirst) { |
4647c8bd CT |
2881 | debugs(83, 5, "server-first skips step2; start forwarding the request"); |
2882 | sslServerBump->step = XactionStep::tlsBump3; | |
f5e17947 CT |
2883 | Http::StreamPointer context = pipeline.front(); |
2884 | ClientHttpRequest *http = context ? context->http : nullptr; | |
36698640 | 2885 | // will call httpsPeeked() with certificate and connection, eventually |
f5e17947 | 2886 | FwdState::Start(clientConnection, sslServerBump->entry, sslServerBump->request.getRaw(), http ? http->al : nullptr); |
36698640 CT |
2887 | } else { |
2888 | Must(sslServerBump->act.step1 == Ssl::bumpPeek || sslServerBump->act.step1 == Ssl::bumpStare); | |
6b2b6cfe | 2889 | startPeekAndSplice(); |
3248e962 | 2890 | } |
d620ae0e CT |
2891 | } |
2892 | ||
8b082ed9 FC |
2893 | static void |
2894 | httpsSslBumpStep2AccessCheckDone(Acl::Answer answer, void *data) | |
5d65362c CT |
2895 | { |
2896 | ConnStateData *connState = (ConnStateData *) data; | |
2897 | ||
2898 | // if the connection is closed or closing, just return. | |
2899 | if (!connState->isOpen()) | |
2900 | return; | |
2901 | ||
e4f14091 | 2902 | debugs(33, 5, "Answer: " << answer << " kind:" << answer.kind); |
a9c2dd2f CT |
2903 | assert(connState->serverBump()); |
2904 | Ssl::BumpMode bumpAction; | |
06bf5384 | 2905 | if (answer.allowed()) { |
640fe8fb | 2906 | bumpAction = (Ssl::BumpMode)answer.kind; |
a9c2dd2f CT |
2907 | } else |
2908 | bumpAction = Ssl::bumpSplice; | |
2909 | ||
2910 | connState->serverBump()->act.step2 = bumpAction; | |
2911 | connState->sslBumpMode = bumpAction; | |
bf352fb2 CT |
2912 | Http::StreamPointer context = connState->pipeline.front(); |
2913 | if (ClientHttpRequest *http = (context ? context->http : nullptr)) | |
2914 | http->al->ssl.bumpMode = bumpAction; | |
a9c2dd2f CT |
2915 | |
2916 | if (bumpAction == Ssl::bumpTerminate) { | |
b54a7c5a | 2917 | connState->clientConnection->close(); |
a9c2dd2f | 2918 | } else if (bumpAction != Ssl::bumpSplice) { |
6b2b6cfe | 2919 | connState->startPeekAndSplice(); |
efda53c5 CT |
2920 | } else if (!connState->splice()) |
2921 | connState->clientConnection->close(); | |
3248e962 | 2922 | } |
5d65362c | 2923 | |
efda53c5 | 2924 | bool |
3248e962 CT |
2925 | ConnStateData::splice() |
2926 | { | |
33cc0629 | 2927 | // normally we can splice here, because we just got client hello message |
2bcab852 | 2928 | |
ed4c6863 EB |
2929 | // fde::ssl/tls_read_method() probably reads from our own inBuf. If so, then |
2930 | // we should not lose any raw bytes when switching to raw I/O here. | |
2931 | if (fd_table[clientConnection->fd].ssl.get()) | |
2932 | fd_table[clientConnection->fd].useDefaultIo(); | |
3248e962 | 2933 | |
6b2b6cfe CT |
2934 | // XXX: assuming that there was an HTTP/1.1 CONNECT to begin with... |
2935 | // reset the current protocol to HTTP/1.1 (was "HTTPS" for the bumping process) | |
2936 | transferProtocol = Http::ProtocolVersion(); | |
2937 | assert(!pipeline.empty()); | |
2938 | Http::StreamPointer context = pipeline.front(); | |
75f6c253 CT |
2939 | Must(context); |
2940 | Must(context->http); | |
6b2b6cfe | 2941 | ClientHttpRequest *http = context->http; |
75f6c253 CT |
2942 | HttpRequest::Pointer request = http->request; |
2943 | context->finished(); | |
2944 | if (transparent()) { | |
2945 | // For transparent connections, make a new fake CONNECT request, now | |
2946 | // with SNI as target. doCallout() checks, adaptations may need that. | |
2947 | return fakeAConnectRequest("splice", preservedClientData); | |
2948 | } else { | |
2949 | // For non transparent connections make a new tunneled CONNECT, which | |
2950 | // also sets the HttpRequest::flags::forceTunnel flag to avoid | |
2951 | // respond with "Connection Established" to the client. | |
2952 | // This fake CONNECT request required to allow use of SNI in | |
2953 | // doCallout() checks and adaptations. | |
eb026889 | 2954 | return initiateTunneledRequest(request, "splice", preservedClientData); |
75f6c253 | 2955 | } |
5d65362c CT |
2956 | } |
2957 | ||
d620ae0e | 2958 | void |
6b2b6cfe | 2959 | ConnStateData::startPeekAndSplice() |
d620ae0e | 2960 | { |
5d65362c CT |
2961 | // This is the Step2 of the SSL bumping |
2962 | assert(sslServerBump); | |
d4ddb3e6 | 2963 | Http::StreamPointer context = pipeline.front(); |
2f0d171f | 2964 | ClientHttpRequest *http = context ? context->http : nullptr; |
d4ddb3e6 | 2965 | |
090f1d3c CT |
2966 | if (sslServerBump->at(XactionStep::tlsBump1)) { |
2967 | sslServerBump->step = XactionStep::tlsBump2; | |
5d65362c CT |
2968 | // Run a accessList check to check if want to splice or continue bumping |
2969 | ||
c56edb4a | 2970 | auto acl_checklist = ACLFilledChecklist::Make(Config.accessList.ssl_bump, sslServerBump->request.getRaw()); |
329c128c | 2971 | acl_checklist->banAction(Acl::Answer(ACCESS_ALLOWED, Ssl::bumpNone)); |
2972 | acl_checklist->banAction(Acl::Answer(ACCESS_ALLOWED, Ssl::bumpClientFirst)); | |
2973 | acl_checklist->banAction(Acl::Answer(ACCESS_ALLOWED, Ssl::bumpServerFirst)); | |
e227da8d | 2974 | fillChecklist(*acl_checklist); |
c56edb4a | 2975 | ACLFilledChecklist::NonBlockingCheck(std::move(acl_checklist), httpsSslBumpStep2AccessCheckDone, this); |
5d65362c CT |
2976 | return; |
2977 | } | |
2978 | ||
3cae14a6 | 2979 | // will call httpsPeeked() with certificate and connection, eventually |
51e09c08 | 2980 | Security::ContextPointer unConfiguredCTX(Ssl::createSSLContext(port->secure.signingCa.cert, port->secure.signingCa.pkey, port->secure)); |
0476ec45 | 2981 | fd_table[clientConnection->fd].dynamicTlsContext = unConfiguredCTX; |
3cae14a6 | 2982 | |
60fcfadf | 2983 | if (!httpsCreate(this, unConfiguredCTX)) |
3cae14a6 CT |
2984 | return; |
2985 | ||
2986 | switchedToHttps_ = true; | |
2987 | ||
2988 | auto ssl = fd_table[clientConnection->fd].ssl.get(); | |
2989 | BIO *b = SSL_get_rbio(ssl); | |
2a268a06 | 2990 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(BIO_get_data(b)); |
3cae14a6 | 2991 | bio->setReadBufData(inBuf); |
3cae14a6 CT |
2992 | bio->hold(true); |
2993 | ||
83b053a0 CT |
2994 | // We have successfully parsed client Hello, but our TLS handshake parser is |
2995 | // forgiving. Now we use a TLS library to parse the same bytes, so that we | |
2996 | // can honor on_unsupported_protocol if needed. If there are no errors, we | |
2997 | // expect Security::Accept() to ask us to write (our) TLS server Hello. We | |
2998 | // also allow an ioWantRead result in case some fancy TLS extension that | |
2999 | // Squid does not yet understand requires reading post-Hello client bytes. | |
e227da8d | 3000 | const auto handshakeResult = acceptTls(); |
83b053a0 CT |
3001 | if (!handshakeResult.wantsIo()) |
3002 | return handleSslBumpHandshakeError(handshakeResult); | |
3cae14a6 | 3003 | |
56dacaca CT |
3004 | // We need to reset inBuf here, to be used by incoming requests in the case |
3005 | // of SSL bump | |
8abcff99 | 3006 | inBuf.clear(); |
3cae14a6 CT |
3007 | |
3008 | debugs(83, 5, "Peek and splice at step2 done. Start forwarding the request!!! "); | |
4647c8bd | 3009 | sslServerBump->step = XactionStep::tlsBump3; |
aee3523a | 3010 | FwdState::Start(clientConnection, sslServerBump->entry, sslServerBump->request.getRaw(), http ? http->al : nullptr); |
d620ae0e CT |
3011 | } |
3012 | ||
83b053a0 CT |
3013 | /// process a problematic Security::Accept() result on the SslBump code path |
3014 | void | |
3015 | ConnStateData::handleSslBumpHandshakeError(const Security::IoResult &handshakeResult) | |
3016 | { | |
3017 | auto errCategory = ERR_NONE; | |
3018 | ||
3019 | switch (handshakeResult.category) { | |
3020 | case Security::IoResult::ioSuccess: { | |
3021 | static const auto d = MakeNamedErrorDetail("TLS_ACCEPT_UNEXPECTED_SUCCESS"); | |
3022 | updateError(errCategory = ERR_GATEWAY_FAILURE, d); | |
3023 | break; | |
3024 | } | |
3025 | ||
3026 | case Security::IoResult::ioWantRead: { | |
3027 | static const auto d = MakeNamedErrorDetail("TLS_ACCEPT_UNEXPECTED_READ"); | |
3028 | updateError(errCategory = ERR_GATEWAY_FAILURE, d); | |
3029 | break; | |
3030 | } | |
3031 | ||
3032 | case Security::IoResult::ioWantWrite: { | |
3033 | static const auto d = MakeNamedErrorDetail("TLS_ACCEPT_UNEXPECTED_WRITE"); | |
3034 | updateError(errCategory = ERR_GATEWAY_FAILURE, d); | |
3035 | break; | |
3036 | } | |
3037 | ||
3038 | case Security::IoResult::ioError: | |
3039 | debugs(83, (handshakeResult.important ? DBG_IMPORTANT : 2), "ERROR: " << handshakeResult.errorDescription << | |
3040 | " while SslBump-accepting a TLS connection on " << clientConnection << ": " << handshakeResult.errorDetail); | |
3041 | updateError(errCategory = ERR_SECURE_ACCEPT_FAIL, handshakeResult.errorDetail); | |
3042 | break; | |
3043 | ||
3044 | } | |
3045 | ||
eb026889 | 3046 | if (!tunnelOnError(errCategory)) |
83b053a0 CT |
3047 | clientConnection->close(); |
3048 | } | |
3049 | ||
d620ae0e CT |
3050 | void |
3051 | ConnStateData::doPeekAndSpliceStep() | |
3052 | { | |
33cc0629 | 3053 | auto ssl = fd_table[clientConnection->fd].ssl.get(); |
d620ae0e CT |
3054 | BIO *b = SSL_get_rbio(ssl); |
3055 | assert(b); | |
2a268a06 | 3056 | Ssl::ClientBio *bio = static_cast<Ssl::ClientBio *>(BIO_get_data(b)); |
d620ae0e | 3057 | |
2f8abb64 | 3058 | debugs(33, 5, "PeekAndSplice mode, proceed with client negotiation. Current state:" << SSL_state_string_long(ssl)); |
d620ae0e CT |
3059 | bio->hold(false); |
3060 | ||
3061 | Comm::SetSelect(clientConnection->fd, COMM_SELECT_WRITE, clientNegotiateSSL, this, 0); | |
3062 | switchedToHttps_ = true; | |
3063 | } | |
3064 | ||
d7ce0bcd | 3065 | void |
801cfc26 | 3066 | ConnStateData::httpsPeeked(PinnedIdleContext pic) |
d7ce0bcd | 3067 | { |
aee3523a | 3068 | Must(sslServerBump != nullptr); |
801cfc26 CT |
3069 | Must(sslServerBump->request == pic.request); |
3070 | Must(pipeline.empty() || pipeline.front()->http == nullptr || pipeline.front()->http->request == pic.request.getRaw()); | |
819c207f | 3071 | |
801cfc26 CT |
3072 | if (Comm::IsConnOpen(pic.connection)) { |
3073 | notePinnedConnectionBecameIdle(pic); | |
9ce4a1eb | 3074 | debugs(33, 5, "bumped HTTPS server: " << tlsConnectHostOrIp); |
801cfc26 | 3075 | } else |
9ce4a1eb | 3076 | debugs(33, 5, "Error while bumping: " << tlsConnectHostOrIp); |
129fe2a1 | 3077 | |
1ce2822d | 3078 | getSslContextStart(); |
95d2589c CT |
3079 | } |
3080 | ||
cb4f4424 | 3081 | #endif /* USE_OPENSSL */ |
1f7c9178 | 3082 | |
efda53c5 | 3083 | bool |
eb026889 | 3084 | ConnStateData::initiateTunneledRequest(HttpRequest::Pointer const &cause, const char *reason, const SBuf &payload) |
0bd3c2a3 AJ |
3085 | { |
3086 | // fake a CONNECT request to force connState to tunnel | |
e88bdb0e | 3087 | SBuf connectHost; |
380b09ae | 3088 | AnyP::Port connectPort; |
6b2b6cfe CT |
3089 | |
3090 | if (pinning.serverConnection != nullptr) { | |
3091 | static char ip[MAX_IPSTRLEN]; | |
9ce4a1eb | 3092 | connectHost = pinning.serverConnection->remote.toStr(ip, sizeof(ip)); |
380b09ae AR |
3093 | if (const auto remotePort = pinning.serverConnection->remote.port()) |
3094 | connectPort = remotePort; | |
9ce4a1eb CT |
3095 | } else if (cause) { |
3096 | connectHost = cause->url.hostOrIp(); | |
6b2b6cfe | 3097 | connectPort = cause->url.port(); |
9ce4a1eb CT |
3098 | #if USE_OPENSSL |
3099 | } else if (!tlsConnectHostOrIp.isEmpty()) { | |
3100 | connectHost = tlsConnectHostOrIp; | |
3101 | connectPort = tlsConnectPort; | |
3102 | #endif | |
3103 | } else if (transparent()) { | |
3104 | static char ip[MAX_IPSTRLEN]; | |
3105 | connectHost = clientConnection->local.toStr(ip, sizeof(ip)); | |
3106 | connectPort = clientConnection->local.port(); | |
380b09ae AR |
3107 | } |
3108 | ||
3109 | if (!connectPort) { | |
83b053a0 CT |
3110 | // Typical cases are malformed HTTP requests on http_port and malformed |
3111 | // TLS handshakes on non-bumping https_port. TODO: Discover these | |
3112 | // problems earlier so that they can be classified/detailed better. | |
6b2b6cfe | 3113 | debugs(33, 2, "Not able to compute URL, abort request tunneling for " << reason); |
c56edb4a | 3114 | // TODO: throw when NonBlockingCheck() callbacks gain job protections |
83b053a0 CT |
3115 | static const auto d = MakeNamedErrorDetail("TUNNEL_TARGET"); |
3116 | updateError(ERR_INVALID_REQ, d); | |
6b2b6cfe CT |
3117 | return false; |
3118 | } | |
3119 | ||
3120 | debugs(33, 2, "Request tunneling for " << reason); | |
380b09ae | 3121 | const auto http = buildFakeRequest(connectHost, *connectPort, payload); |
6b2b6cfe CT |
3122 | HttpRequest::Pointer request = http->request; |
3123 | request->flags.forceTunnel = true; | |
3124 | http->calloutContext = new ClientRequestContext(http); | |
3125 | http->doCallouts(); | |
3126 | clientProcessRequestFinished(this, request); | |
3127 | return true; | |
3128 | } | |
3129 | ||
3130 | bool | |
3131 | ConnStateData::fakeAConnectRequest(const char *reason, const SBuf &payload) | |
3132 | { | |
3133 | debugs(33, 2, "fake a CONNECT request to force connState to tunnel for " << reason); | |
3134 | ||
3135 | SBuf connectHost; | |
3136 | assert(transparent()); | |
3137 | const unsigned short connectPort = clientConnection->local.port(); | |
3138 | ||
65e0c910 | 3139 | #if USE_OPENSSL |
4f6990ec CT |
3140 | if (!tlsClientSni_.isEmpty()) |
3141 | connectHost.assign(tlsClientSni_); | |
6b2b6cfe | 3142 | else |
65e0c910 CT |
3143 | #endif |
3144 | { | |
e88bdb0e | 3145 | static char ip[MAX_IPSTRLEN]; |
e9b219a0 TA |
3146 | clientConnection->local.toHostStr(ip, sizeof(ip)); |
3147 | connectHost.assign(ip); | |
0bd3c2a3 | 3148 | } |
6b2b6cfe | 3149 | |
eb026889 | 3150 | ClientHttpRequest *http = buildFakeRequest(connectHost, connectPort, payload); |
6b2b6cfe CT |
3151 | |
3152 | http->calloutContext = new ClientRequestContext(http); | |
3153 | HttpRequest::Pointer request = http->request; | |
3154 | http->doCallouts(); | |
3155 | clientProcessRequestFinished(this, request); | |
efda53c5 | 3156 | return true; |
0bd3c2a3 AJ |
3157 | } |
3158 | ||
6b2b6cfe | 3159 | ClientHttpRequest * |
380b09ae | 3160 | ConnStateData::buildFakeRequest(SBuf &useHost, const AnyP::KnownPort usePort, const SBuf &payload) |
6b2b6cfe CT |
3161 | { |
3162 | ClientHttpRequest *http = new ClientHttpRequest(this); | |
3163 | Http::Stream *stream = new Http::Stream(clientConnection, http); | |
3164 | ||
3165 | StoreIOBuffer tempBuffer; | |
3166 | tempBuffer.data = stream->reqbuf; | |
3167 | tempBuffer.length = HTTP_REQBUF_SZ; | |
3168 | ||
3169 | ClientStreamData newServer = new clientReplyContext(http); | |
3170 | ClientStreamData newClient = stream; | |
3171 | clientStreamInit(&http->client_stream, clientGetMoreData, clientReplyDetach, | |
3172 | clientReplyStatus, newServer, clientSocketRecipient, | |
3173 | clientSocketDetach, newClient, tempBuffer); | |
3174 | ||
6b2b6cfe CT |
3175 | stream->flags.parsed_ok = 1; // Do we need it? |
3176 | stream->mayUseConnection(true); | |
83b053a0 | 3177 | extendLifetime(); |
6b2b6cfe CT |
3178 | stream->registerWithConn(); |
3179 | ||
ad05b958 | 3180 | const auto mx = MasterXaction::MakePortful(port); |
5ceaee75 | 3181 | mx->tcpClient = clientConnection; |
6b2b6cfe CT |
3182 | // Setup Http::Request object. Maybe should be replaced by a call to (modified) |
3183 | // clientProcessRequest | |
5ceaee75 | 3184 | HttpRequest::Pointer request = new HttpRequest(mx); |
eb026889 CT |
3185 | request->url.setScheme(AnyP::PROTO_AUTHORITY_FORM, nullptr); |
3186 | request->method = Http::METHOD_CONNECT; | |
6b2b6cfe CT |
3187 | request->url.host(useHost.c_str()); |
3188 | request->url.port(usePort); | |
9ce4a1eb CT |
3189 | |
3190 | http->uri = SBufToCstring(request->effectiveRequestUri()); | |
bec110e4 | 3191 | http->initRequest(request.getRaw()); |
6b2b6cfe | 3192 | |
cd4a5c60 | 3193 | request->manager(this, http->al); |
6b2b6cfe | 3194 | |
eb026889 | 3195 | request->header.putStr(Http::HOST, useHost.c_str()); |
cd4a5c60 | 3196 | |
63df1d28 | 3197 | request->sources |= ((switchedToHttps() || port->transport.protocol == AnyP::PROTO_HTTPS) ? Http::Message::srcHttps : Http::Message::srcHttp); |
6b2b6cfe CT |
3198 | #if USE_AUTH |
3199 | if (getAuth()) | |
3200 | request->auth_user_request = getAuth(); | |
3201 | #endif | |
6b2b6cfe CT |
3202 | |
3203 | inBuf = payload; | |
3204 | flags.readMore = false; | |
3205 | ||
6b2b6cfe CT |
3206 | return http; |
3207 | } | |
3208 | ||
00516be1 AR |
3209 | /// check FD after clientHttp[s]ConnectionOpened, adjust HttpSockets as needed |
3210 | static bool | |
73c36fd9 | 3211 | OpenedHttpSocket(const Comm::ConnectionPointer &c, const Ipc::FdNoteId portType) |
00516be1 | 3212 | { |
73c36fd9 | 3213 | if (!Comm::IsConnOpen(c)) { |
00516be1 AR |
3214 | Must(NHttpSockets > 0); // we tried to open some |
3215 | --NHttpSockets; // there will be fewer sockets than planned | |
3216 | Must(HttpSockets[NHttpSockets] < 0); // no extra fds received | |
3217 | ||
3218 | if (!NHttpSockets) // we could not open any listen sockets at all | |
cbff89ba | 3219 | fatalf("Unable to open %s",FdNote(portType)); |
00516be1 AR |
3220 | |
3221 | return false; | |
3222 | } | |
3223 | return true; | |
3224 | } | |
3225 | ||
3226 | /// find any unused HttpSockets[] slot and store fd there or return false | |
3227 | static bool | |
e0d28505 | 3228 | AddOpenedHttpSocket(const Comm::ConnectionPointer &conn) |
00516be1 AR |
3229 | { |
3230 | bool found = false; | |
95dc7ff4 | 3231 | for (int i = 0; i < NHttpSockets && !found; ++i) { |
00516be1 | 3232 | if ((found = HttpSockets[i] < 0)) |
e0d28505 | 3233 | HttpSockets[i] = conn->fd; |
00516be1 AR |
3234 | } |
3235 | return found; | |
3236 | } | |
15df8349 | 3237 | |
d193a436 | 3238 | static void |
15df8349 | 3239 | clientHttpConnectionsOpen(void) |
3240 | { | |
f38db639 | 3241 | const auto savedContext = CodeContext::Current(); |
aee3523a | 3242 | for (AnyP::PortCfgPointer s = HttpPortList; s != nullptr; s = s->next) { |
f38db639 | 3243 | CodeContext::Reset(s); |
d31d59d8 | 3244 | const SBuf &scheme = AnyP::UriScheme(s->transport.protocol).image(); |
339e4d7a | 3245 | |
65d448bc | 3246 | if (MAXTCPLISTENPORTS == NHttpSockets) { |
ccfbe8f4 AR |
3247 | debugs(1, DBG_IMPORTANT, "WARNING: You have too many '" << scheme << "_port' lines." << |
3248 | Debug::Extra << "The limit is " << MAXTCPLISTENPORTS << " HTTP ports."); | |
62e76326 | 3249 | continue; |
3250 | } | |
3251 | ||
cb4f4424 | 3252 | #if USE_OPENSSL |
6a25a046 | 3253 | if (s->flags.tunnelSslBumping) { |
339e4d7a AJ |
3254 | if (!Config.accessList.ssl_bump) { |
3255 | debugs(33, DBG_IMPORTANT, "WARNING: No ssl_bump configured. Disabling ssl-bump on " << scheme << "_port " << s->s); | |
3256 | s->flags.tunnelSslBumping = false; | |
3257 | } | |
cf487124 | 3258 | if (!s->secure.staticContext && !s->secure.generateHostCertificates) { |
339e4d7a AJ |
3259 | debugs(1, DBG_IMPORTANT, "Will not bump SSL at " << scheme << "_port " << s->s << " due to TLS initialization failure."); |
3260 | s->flags.tunnelSslBumping = false; | |
3261 | if (s->transport.protocol == AnyP::PROTO_HTTP) | |
3262 | s->secure.encryptTransport = false; | |
3263 | } | |
3264 | if (s->flags.tunnelSslBumping) { | |
3265 | // Create ssl_ctx cache for this port. | |
cf487124 | 3266 | Ssl::TheGlobalContextStorage.addLocalStorage(s->s, s->secure.dynamicCertMemCacheSize); |
339e4d7a | 3267 | } |
95d2589c | 3268 | } |
51e09c08 | 3269 | #endif |
ae7ff0b8 | 3270 | |
80b5995a | 3271 | if (s->secure.encryptTransport && !s->secure.staticContext) { |
339e4d7a AJ |
3272 | debugs(1, DBG_CRITICAL, "ERROR: Ignoring " << scheme << "_port " << s->s << " due to TLS context initialization failure."); |
3273 | continue; | |
3274 | } | |
3275 | ||
71ddbf2a EB |
3276 | const auto protocol = s->transport.protocol; |
3277 | assert(protocol == AnyP::PROTO_HTTP || protocol == AnyP::PROTO_HTTPS); | |
3278 | const auto isHttps = protocol == AnyP::PROTO_HTTPS; | |
3279 | using AcceptCall = CommCbFunPtrCallT<CommAcceptCbPtrFun>; | |
3280 | RefCount<AcceptCall> subCall = commCbCall(5, 5, isHttps ? "httpsAccept" : "httpAccept", | |
bb4cc8e6 | 3281 | CommAcceptCbPtrFun(isHttps ? httpsAccept : httpAccept, CommAcceptCbParams(nullptr))); |
71ddbf2a | 3282 | clientStartListeningOn(s, subCall, isHttps ? Ipc::fdnHttpsSocket : Ipc::fdnHttpSocket); |
cbff89ba | 3283 | } |
f38db639 | 3284 | CodeContext::Reset(savedContext); |
d193a436 | 3285 | } |
d193a436 | 3286 | |
92ae4c86 | 3287 | void |
27c841f6 AR |
3288 | clientStartListeningOn(AnyP::PortCfgPointer &port, const RefCount< CommCbFunPtrCallT<CommAcceptCbPtrFun> > &subCall, const Ipc::FdNoteId fdNote) |
3289 | { | |
92ae4c86 AR |
3290 | // Fill out a Comm::Connection which IPC will open as a listener for us |
3291 | port->listenConn = new Comm::Connection; | |
3292 | port->listenConn->local = port->s; | |
e7ce227f AR |
3293 | port->listenConn->flags = |
3294 | COMM_NONBLOCKING | | |
3295 | (port->flags.tproxyIntercept ? COMM_TRANSPARENT : 0) | | |
049eeeb4 EB |
3296 | (port->flags.natIntercept ? COMM_INTERCEPTION : 0) | |
3297 | (port->workerQueues ? COMM_REUSEPORT : 0); | |
92ae4c86 AR |
3298 | |
3299 | // route new connections to subCall | |
3300 | typedef CommCbFunPtrCallT<CommAcceptCbPtrFun> AcceptCall; | |
3301 | Subscription::Pointer sub = new CallSubscription<AcceptCall>(subCall); | |
e5ddd4ce | 3302 | const auto listenCall = |
e7ce227f AR |
3303 | asyncCall(33, 2, "clientListenerConnectionOpened", |
3304 | ListeningStartedDialer(&clientListenerConnectionOpened, | |
3305 | port, fdNote, sub)); | |
e5ddd4ce AR |
3306 | AsyncCallback<Ipc::StartListeningAnswer> callback(listenCall); |
3307 | Ipc::StartListening(SOCK_STREAM, IPPROTO_TCP, port->listenConn, fdNote, callback); | |
434a79b0 | 3308 | |
92ae4c86 AR |
3309 | assert(NHttpSockets < MAXTCPLISTENPORTS); |
3310 | HttpSockets[NHttpSockets] = -1; | |
3311 | ++NHttpSockets; | |
434a79b0 DK |
3312 | } |
3313 | ||
e0d28505 | 3314 | /// process clientHttpConnectionsOpen result |
00516be1 | 3315 | static void |
fa720bfb | 3316 | clientListenerConnectionOpened(AnyP::PortCfgPointer &s, const Ipc::FdNoteId portTypeNote, const Subscription::Pointer &sub) |
00516be1 | 3317 | { |
aee3523a | 3318 | Must(s != nullptr); |
fa720bfb | 3319 | |
8bbb16e3 | 3320 | if (!OpenedHttpSocket(s->listenConn, portTypeNote)) |
00516be1 | 3321 | return; |
62e76326 | 3322 | |
e0d28505 | 3323 | Must(Comm::IsConnOpen(s->listenConn)); |
62e76326 | 3324 | |
8bbb16e3 | 3325 | // TCP: setup a job to handle accept() with subscribed handler |
fa720bfb | 3326 | AsyncJob::Start(new Comm::TcpAcceptor(s, FdNote(portTypeNote), sub)); |
8bbb16e3 | 3327 | |
c59baaa8 | 3328 | debugs(1, Important(13), "Accepting " << |
6a25a046 | 3329 | (s->flags.natIntercept ? "NAT intercepted " : "") << |
0d901ef4 | 3330 | (s->flags.tproxyIntercept ? "TPROXY intercepted " : "") << |
6a25a046 FC |
3331 | (s->flags.tunnelSslBumping ? "SSL bumped " : "") << |
3332 | (s->flags.accelSurrogate ? "reverse-proxy " : "") | |
8bbb16e3 AJ |
3333 | << FdNote(portTypeNote) << " connections at " |
3334 | << s->listenConn); | |
62e76326 | 3335 | |
e0d28505 | 3336 | Must(AddOpenedHttpSocket(s->listenConn)); // otherwise, we have received a fd we did not ask for |
6fa8c664 | 3337 | |
553b28e7 | 3338 | #if HAVE_LIBSYSTEMD |
6fa8c664 MM |
3339 | // When the very first port opens, tell systemd we are able to serve connections. |
3340 | // Subsequent sd_notify() calls, including calls during reconfiguration, | |
3341 | // do nothing because the first call parameter is 1. | |
3342 | // XXX: Send the notification only after opening all configured ports. | |
3343 | if (opt_foreground || opt_no_daemon) { | |
3344 | const auto result = sd_notify(1, "READY=1"); | |
3345 | if (result < 0) { | |
3346 | debugs(1, DBG_IMPORTANT, "WARNING: failed to send start-up notification to systemd" << | |
3347 | Debug::Extra << "sd_notify() error: " << xstrerr(-result)); | |
3348 | } | |
3349 | } | |
3350 | #endif | |
d193a436 | 3351 | } |
3352 | ||
d193a436 | 3353 | void |
3354 | clientOpenListenSockets(void) | |
3355 | { | |
3356 | clientHttpConnectionsOpen(); | |
92ae4c86 | 3357 | Ftp::StartListening(); |
62e76326 | 3358 | |
15df8349 | 3359 | if (NHttpSockets < 1) |
e7ce227f | 3360 | fatal("No HTTP, HTTPS, or FTP ports configured"); |
15df8349 | 3361 | } |
edce4d98 | 3362 | |
c0fbae16 | 3363 | void |
e7ce227f | 3364 | clientConnectionsClose() |
c0fbae16 | 3365 | { |
f38db639 | 3366 | const auto savedContext = CodeContext::Current(); |
aee3523a | 3367 | for (AnyP::PortCfgPointer s = HttpPortList; s != nullptr; s = s->next) { |
f38db639 | 3368 | CodeContext::Reset(s); |
aee3523a | 3369 | if (s->listenConn != nullptr) { |
c59baaa8 | 3370 | debugs(1, Important(14), "Closing HTTP(S) port " << s->listenConn->local); |
00406b24 | 3371 | s->listenConn->close(); |
aee3523a | 3372 | s->listenConn = nullptr; |
04f55905 AJ |
3373 | } |
3374 | } | |
f38db639 | 3375 | CodeContext::Reset(savedContext); |
62e76326 | 3376 | |
92ae4c86 | 3377 | Ftp::StopListening(); |
434a79b0 | 3378 | |
04f55905 | 3379 | // TODO see if we can drop HttpSockets array entirely */ |
95dc7ff4 | 3380 | for (int i = 0; i < NHttpSockets; ++i) { |
04f55905 AJ |
3381 | HttpSockets[i] = -1; |
3382 | } | |
62e76326 | 3383 | |
c0fbae16 | 3384 | NHttpSockets = 0; |
3385 | } | |
f66a9ef4 | 3386 | |
3387 | int | |
190154cf | 3388 | varyEvaluateMatch(StoreEntry * entry, HttpRequest * request) |
f66a9ef4 | 3389 | { |
90ab8f20 | 3390 | SBuf vary(request->vary_headers); |
66d51f4f AR |
3391 | const auto &reply = entry->mem().freshestReply(); |
3392 | auto has_vary = reply.header.has(Http::HdrType::VARY); | |
f66a9ef4 | 3393 | #if X_ACCELERATOR_VARY |
62e76326 | 3394 | |
edce4d98 | 3395 | has_vary |= |
66d51f4f | 3396 | reply.header.has(Http::HdrType::HDR_X_ACCELERATOR_VARY); |
f66a9ef4 | 3397 | #endif |
62e76326 | 3398 | |
90ab8f20 AJ |
3399 | if (!has_vary || entry->mem_obj->vary_headers.isEmpty()) { |
3400 | if (!vary.isEmpty()) { | |
62e76326 | 3401 | /* Oops... something odd is going on here.. */ |
e0236918 | 3402 | debugs(33, DBG_IMPORTANT, "varyEvaluateMatch: Oops. Not a Vary object on second attempt, '" << |
c877c0bc | 3403 | entry->mem_obj->urlXXX() << "' '" << vary << "'"); |
90ab8f20 | 3404 | request->vary_headers.clear(); |
62e76326 | 3405 | return VARY_CANCEL; |
3406 | } | |
3407 | ||
3408 | if (!has_vary) { | |
3409 | /* This is not a varying object */ | |
3410 | return VARY_NONE; | |
3411 | } | |
3412 | ||
3413 | /* virtual "vary" object found. Calculate the vary key and | |
3414 | * continue the search | |
3415 | */ | |
66d51f4f | 3416 | vary = httpMakeVaryMark(request, &reply); |
62e76326 | 3417 | |
90ab8f20 AJ |
3418 | if (!vary.isEmpty()) { |
3419 | request->vary_headers = vary; | |
62e76326 | 3420 | return VARY_OTHER; |
3421 | } else { | |
3422 | /* Ouch.. we cannot handle this kind of variance */ | |
3423 | /* XXX This cannot really happen, but just to be complete */ | |
3424 | return VARY_CANCEL; | |
3425 | } | |
f66a9ef4 | 3426 | } else { |
90ab8f20 | 3427 | if (vary.isEmpty()) { |
66d51f4f | 3428 | vary = httpMakeVaryMark(request, &reply); |
62e76326 | 3429 | |
90ab8f20 AJ |
3430 | if (!vary.isEmpty()) |
3431 | request->vary_headers = vary; | |
62e76326 | 3432 | } |
3433 | ||
90ab8f20 | 3434 | if (vary.isEmpty()) { |
62e76326 | 3435 | /* Ouch.. we cannot handle this kind of variance */ |
3436 | /* XXX This cannot really happen, but just to be complete */ | |
3437 | return VARY_CANCEL; | |
90ab8f20 | 3438 | } else if (vary.cmp(entry->mem_obj->vary_headers) == 0) { |
62e76326 | 3439 | return VARY_MATCH; |
3440 | } else { | |
3441 | /* Oops.. we have already been here and still haven't | |
3442 | * found the requested variant. Bail out | |
3443 | */ | |
e0236918 | 3444 | debugs(33, DBG_IMPORTANT, "varyEvaluateMatch: Oops. Not a Vary match on second attempt, '" << |
c877c0bc | 3445 | entry->mem_obj->urlXXX() << "' '" << vary << "'"); |
62e76326 | 3446 | return VARY_CANCEL; |
3447 | } | |
f66a9ef4 | 3448 | } |
3449 | } | |
28d4805a | 3450 | |
c56edb4a | 3451 | ACLFilledChecklist::MakingPointer |
59a1efb2 | 3452 | clientAclChecklistCreate(const acl_access * acl, ClientHttpRequest * http) |
28d4805a | 3453 | { |
c56edb4a | 3454 | auto checklist = ACLFilledChecklist::Make(acl, nullptr); |
819be284 EB |
3455 | clientAclChecklistFill(*checklist, http); |
3456 | return checklist; | |
3457 | } | |
3458 | ||
3459 | void | |
3460 | clientAclChecklistFill(ACLFilledChecklist &checklist, ClientHttpRequest *http) | |
3461 | { | |
e227da8d AR |
3462 | assert(http); |
3463 | ||
3464 | if (!checklist.request && http->request) | |
3465 | checklist.setRequest(http->request); | |
3466 | ||
3467 | if (!checklist.al && http->al) { | |
b1c2ea7a | 3468 | checklist.updateAle(http->al); |
e227da8d | 3469 | checklist.syncAle(http->request, http->log_uri); |
e227da8d AR |
3470 | } |
3471 | ||
3472 | if (const auto conn = http->getConn()) | |
3473 | checklist.setConn(conn); // may already be set | |
3474 | } | |
3475 | ||
3476 | void | |
3477 | ConnStateData::fillChecklist(ACLFilledChecklist &checklist) const | |
3478 | { | |
3479 | const auto context = pipeline.front(); | |
3480 | if (const auto http = context ? context->http : nullptr) | |
3481 | return clientAclChecklistFill(checklist, http); // calls checklist.setConn() | |
3482 | ||
3483 | // no requests, but we always have connection-level details | |
3484 | // TODO: ACL checks should not require a mutable ConnStateData. Adjust the | |
3485 | // code that accidentally violates that principle to remove this const_cast! | |
3486 | checklist.setConn(const_cast<ConnStateData*>(this)); | |
3487 | ||
3488 | // Set other checklist fields inside our fillConnectionLevelDetails() rather | |
3489 | // than here because clientAclChecklistFill() code path calls that method | |
3490 | // (via ACLFilledChecklist::setConn()) rather than calling us directly. | |
3491 | } | |
3492 | ||
3493 | void | |
3494 | ConnStateData::fillConnectionLevelDetails(ACLFilledChecklist &checklist) const | |
3495 | { | |
3496 | assert(checklist.conn() == this); | |
3497 | assert(clientConnection); | |
3498 | ||
3499 | if (!checklist.request) { // preserve (better) addresses supplied by setRequest() | |
3500 | checklist.src_addr = clientConnection->remote; | |
3501 | checklist.my_addr = clientConnection->local; // TODO: or port->s? | |
3502 | } | |
3503 | ||
3504 | #if USE_OPENSSL | |
3505 | if (!checklist.sslErrors && sslServerBump) | |
27a1c6de | 3506 | checklist.sslErrors = sslServerBump->sslErrors(); |
e227da8d | 3507 | #endif |
28d4805a | 3508 | } |
a46d2c0e | 3509 | |
a46d2c0e | 3510 | bool |
3511 | ConnStateData::transparent() const | |
3512 | { | |
aee3523a | 3513 | return clientConnection != nullptr && (clientConnection->flags & (COMM_TRANSPARENT|COMM_INTERCEPTION)); |
a46d2c0e | 3514 | } |
3515 | ||
5f8252d2 | 3516 | BodyPipe::Pointer |
3e62bd58 | 3517 | ConnStateData::expectRequestBody(int64_t size) |
5f8252d2 | 3518 | { |
3519 | bodyPipe = new BodyPipe(this); | |
39cb8c41 AR |
3520 | if (size >= 0) |
3521 | bodyPipe->setBodySize(size); | |
3522 | else | |
3523 | startDechunkingRequest(); | |
5f8252d2 | 3524 | return bodyPipe; |
3525 | } | |
3526 | ||
39cb8c41 AR |
3527 | int64_t |
3528 | ConnStateData::mayNeedToReadMoreBody() const | |
3529 | { | |
3530 | if (!bodyPipe) | |
3531 | return 0; // request without a body or read/produced all body bytes | |
3532 | ||
3533 | if (!bodyPipe->bodySizeKnown()) | |
3534 | return -1; // probably need to read more, but we cannot be sure | |
3535 | ||
3536 | const int64_t needToProduce = bodyPipe->unproducedSize(); | |
fcc444e3 | 3537 | const int64_t haveAvailable = static_cast<int64_t>(inBuf.length()); |
39cb8c41 AR |
3538 | |
3539 | if (needToProduce <= haveAvailable) | |
3540 | return 0; // we have read what we need (but are waiting for pipe space) | |
3541 | ||
3542 | return needToProduce - haveAvailable; | |
3543 | } | |
3544 | ||
55e44db9 | 3545 | void |
cf6eb29e | 3546 | ConnStateData::stopReceiving(const char *error) |
55e44db9 | 3547 | { |
bf95c10a | 3548 | debugs(33, 4, "receiving error (" << clientConnection << "): " << error << |
cf6eb29e CT |
3549 | "; old sending error: " << |
3550 | (stoppedSending() ? stoppedSending_ : "none")); | |
5f8252d2 | 3551 | |
cf6eb29e | 3552 | if (const char *oldError = stoppedReceiving()) { |
bf95c10a | 3553 | debugs(33, 3, "already stopped receiving: " << oldError); |
cf6eb29e CT |
3554 | return; // nothing has changed as far as this connection is concerned |
3555 | } | |
5f8252d2 | 3556 | |
cf6eb29e | 3557 | stoppedReceiving_ = error; |
5f8252d2 | 3558 | |
cf6eb29e | 3559 | if (const char *sendError = stoppedSending()) { |
bf95c10a | 3560 | debugs(33, 3, "closing because also stopped sending: " << sendError); |
cf6eb29e CT |
3561 | clientConnection->close(); |
3562 | } | |
55e44db9 | 3563 | } |
3564 | ||
eb44b2d7 | 3565 | void |
e29ccb57 A |
3566 | ConnStateData::expectNoForwarding() |
3567 | { | |
aee3523a | 3568 | if (bodyPipe != nullptr) { |
bf95c10a | 3569 | debugs(33, 4, "no consumer for virgin body " << bodyPipe->status()); |
eb44b2d7 CT |
3570 | bodyPipe->expectNoConsumption(); |
3571 | } | |
3572 | } | |
3573 | ||
39cb8c41 | 3574 | /// initialize dechunking state |
3ff65596 | 3575 | void |
39cb8c41 | 3576 | ConnStateData::startDechunkingRequest() |
3ff65596 | 3577 | { |
aee3523a | 3578 | Must(bodyPipe != nullptr); |
bf95c10a | 3579 | debugs(33, 5, "start dechunking" << bodyPipe->status()); |
fcc444e3 AJ |
3580 | assert(!bodyParser); |
3581 | bodyParser = new Http1::TeChunkedParser; | |
3ff65596 AR |
3582 | } |
3583 | ||
39cb8c41 | 3584 | /// put parsed content into input buffer and clean up |
3ff65596 | 3585 | void |
39cb8c41 | 3586 | ConnStateData::finishDechunkingRequest(bool withSuccess) |
3ff65596 | 3587 | { |
bf95c10a | 3588 | debugs(33, 5, "finish dechunking: " << withSuccess); |
3ff65596 | 3589 | |
aee3523a | 3590 | if (bodyPipe != nullptr) { |
bf95c10a | 3591 | debugs(33, 7, "dechunked tail: " << bodyPipe->status()); |
39cb8c41 AR |
3592 | BodyPipe::Pointer myPipe = bodyPipe; |
3593 | stopProducingFor(bodyPipe, withSuccess); // sets bodyPipe->bodySize() | |
3594 | Must(!bodyPipe); // we rely on it being nil after we are done with body | |
3595 | if (withSuccess) { | |
3596 | Must(myPipe->bodySizeKnown()); | |
d3dddfb5 | 3597 | Http::StreamPointer context = pipeline.front(); |
aee3523a | 3598 | if (context != nullptr && context->http && context->http->request) |
39cb8c41 AR |
3599 | context->http->request->setContentLength(myPipe->bodySize()); |
3600 | } | |
3ff65596 | 3601 | } |
3ff65596 | 3602 | |
fcc444e3 | 3603 | delete bodyParser; |
aee3523a | 3604 | bodyParser = nullptr; |
a46d2c0e | 3605 | } |
d67acb4e | 3606 | |
139a1d68 | 3607 | // XXX: this is an HTTP/1-only operation |
655daa06 AR |
3608 | void |
3609 | ConnStateData::sendControlMsg(HttpControlMsg msg) | |
3610 | { | |
49f57088 EB |
3611 | if (const auto context = pipeline.front()) { |
3612 | if (context->http) | |
3613 | context->http->al->reply = msg.reply; | |
3614 | } | |
3615 | ||
eedd4182 | 3616 | if (!isOpen()) { |
bf95c10a | 3617 | debugs(33, 3, "ignoring 1xx due to earlier closure"); |
655daa06 AR |
3618 | return; |
3619 | } | |
3620 | ||
84540b47 | 3621 | // HTTP/1 1xx status messages are only valid when there is a transaction to trigger them |
139a1d68 | 3622 | if (!pipeline.empty()) { |
84540b47 AJ |
3623 | HttpReply::Pointer rep(msg.reply); |
3624 | Must(rep); | |
3625 | // remember the callback | |
3626 | cbControlMsgSent = msg.cbSuccess; | |
3627 | ||
3628 | typedef CommCbMemFunT<HttpControlMsgSink, CommIoCbParams> Dialer; | |
3629 | AsyncCall::Pointer call = JobCallback(33, 5, Dialer, this, HttpControlMsgSink::wroteControlMsg); | |
3630 | ||
2f97ab10 CT |
3631 | if (!writeControlMsgAndCall(rep.getRaw(), call)) { |
3632 | // but still inform the caller (so it may resume its operation) | |
3633 | doneWithControlMsg(); | |
3634 | } | |
655daa06 AR |
3635 | return; |
3636 | } | |
3637 | ||
bf95c10a | 3638 | debugs(33, 3, " closing due to missing context for 1xx"); |
73c36fd9 | 3639 | clientConnection->close(); |
655daa06 AR |
3640 | } |
3641 | ||
24e1fd72 | 3642 | void |
2f97ab10 | 3643 | ConnStateData::doneWithControlMsg() |
24e1fd72 | 3644 | { |
2f97ab10 | 3645 | HttpControlMsgSink::doneWithControlMsg(); |
24e1fd72 CT |
3646 | |
3647 | if (Http::StreamPointer deferredRequest = pipeline.front()) { | |
3648 | debugs(33, 3, clientConnection << ": calling PushDeferredIfNeeded after control msg wrote"); | |
3649 | ClientSocketContextPushDeferredIfNeeded(deferredRequest, this); | |
3650 | } | |
3651 | } | |
3652 | ||
d7ce0bcd | 3653 | /// Our close handler called by Comm when the pinned connection is closed |
d67acb4e AJ |
3654 | void |
3655 | ConnStateData::clientPinnedConnectionClosed(const CommCloseCbParams &io) | |
3656 | { | |
7a957a93 AR |
3657 | // FwdState might repin a failed connection sooner than this close |
3658 | // callback is called for the failed connection. | |
693cb033 | 3659 | assert(pinning.serverConnection == io.conn); |
aee3523a | 3660 | pinning.closeHandler = nullptr; // Comm unregisters handlers before calling |
693cb033 | 3661 | const bool sawZeroReply = pinning.zeroReply; // reset when unpinning |
b54a7c5a | 3662 | pinning.serverConnection->noteClosure(); |
89b1d7a2 | 3663 | unpinConnection(false); |
f8e4867b | 3664 | |
aee3523a | 3665 | if (sawZeroReply && clientConnection != nullptr) { |
693cb033 CT |
3666 | debugs(33, 3, "Closing client connection on pinned zero reply."); |
3667 | clientConnection->close(); | |
85563fd9 | 3668 | } |
f8e4867b | 3669 | |
d67acb4e AJ |
3670 | } |
3671 | ||
b1cf2350 | 3672 | void |
801cfc26 | 3673 | ConnStateData::pinBusyConnection(const Comm::ConnectionPointer &pinServer, const HttpRequest::Pointer &request) |
9e008dda | 3674 | { |
801cfc26 CT |
3675 | pinConnection(pinServer, *request); |
3676 | } | |
d67acb4e | 3677 | |
801cfc26 CT |
3678 | void |
3679 | ConnStateData::notePinnedConnectionBecameIdle(PinnedIdleContext pic) | |
3680 | { | |
3681 | Must(pic.connection); | |
3682 | Must(pic.request); | |
3683 | pinConnection(pic.connection, *pic.request); | |
3684 | ||
3685 | // monitor pinned server connection for remote-end closures. | |
3686 | startPinnedConnectionMonitoring(); | |
3687 | ||
3688 | if (pipeline.empty()) | |
5da786ef | 3689 | kick(); // in case parseRequests() was blocked by a busy pic.connection |
89b1d7a2 | 3690 | } |
9e008dda | 3691 | |
801cfc26 | 3692 | /// Forward future client requests using the given server connection. |
89b1d7a2 | 3693 | void |
801cfc26 | 3694 | ConnStateData::pinConnection(const Comm::ConnectionPointer &pinServer, const HttpRequest &request) |
89b1d7a2 | 3695 | { |
801cfc26 CT |
3696 | if (Comm::IsConnOpen(pinning.serverConnection) && |
3697 | pinning.serverConnection->fd == pinServer->fd) { | |
3698 | debugs(33, 3, "already pinned" << pinServer); | |
3699 | return; | |
3700 | } | |
3701 | ||
89b1d7a2 | 3702 | unpinConnection(true); // closes pinned connection, if any, and resets fields |
9e008dda | 3703 | |
73c36fd9 | 3704 | pinning.serverConnection = pinServer; |
d7ce0bcd | 3705 | |
bf95c10a | 3706 | debugs(33, 3, pinning.serverConnection); |
85563fd9 | 3707 | |
aee3523a | 3708 | Must(pinning.serverConnection != nullptr); |
89b1d7a2 | 3709 | |
d7ce0bcd | 3710 | const char *pinnedHost = "[unknown]"; |
801cfc26 CT |
3711 | pinning.host = xstrdup(request.url.host()); |
3712 | pinning.port = request.url.port(); | |
3713 | pinnedHost = pinning.host; | |
d67acb4e | 3714 | pinning.pinned = true; |
801cfc26 | 3715 | if (CachePeer *aPeer = pinServer->getPeer()) |
8bcf08e0 | 3716 | pinning.peer = cbdataReference(aPeer); |
801cfc26 | 3717 | pinning.auth = request.flags.connectionAuth; |
e3a4aecc | 3718 | char stmp[MAX_IPSTRLEN]; |
89b1d7a2 | 3719 | char desc[FD_DESC_SZ]; |
e3a4aecc | 3720 | snprintf(desc, FD_DESC_SZ, "%s pinned connection for %s (%d)", |
801cfc26 | 3721 | (pinning.auth || !pinning.peer) ? pinnedHost : pinning.peer->name, |
4dd643d5 | 3722 | clientConnection->remote.toUrl(stmp,MAX_IPSTRLEN), |
d7ce0bcd | 3723 | clientConnection->fd); |
73c36fd9 | 3724 | fd_note(pinning.serverConnection->fd, desc); |
9e008dda | 3725 | |
d67acb4e | 3726 | typedef CommCbMemFunT<ConnStateData, CommCloseCbParams> Dialer; |
4299f876 | 3727 | pinning.closeHandler = JobCallback(33, 5, |
4cb2536f | 3728 | Dialer, this, ConnStateData::clientPinnedConnectionClosed); |
85563fd9 AR |
3729 | // remember the pinned connection so that cb does not unpin a fresher one |
3730 | typedef CommCloseCbParams Params; | |
3731 | Params ¶ms = GetCommParams<Params>(pinning.closeHandler); | |
3732 | params.conn = pinning.serverConnection; | |
73c36fd9 | 3733 | comm_add_close_handler(pinning.serverConnection->fd, pinning.closeHandler); |
7ac40923 AR |
3734 | } |
3735 | ||
e7ce227f AR |
3736 | /// [re]start monitoring pinned connection for peer closures so that we can |
3737 | /// propagate them to an _idle_ client pinned to that peer | |
7ac40923 AR |
3738 | void |
3739 | ConnStateData::startPinnedConnectionMonitoring() | |
3740 | { | |
aee3523a | 3741 | if (pinning.readHandler != nullptr) |
7ac40923 AR |
3742 | return; // already monitoring |
3743 | ||
3744 | typedef CommCbMemFunT<ConnStateData, CommIoCbParams> Dialer; | |
3745 | pinning.readHandler = JobCallback(33, 3, | |
3746 | Dialer, this, ConnStateData::clientPinnedConnectionRead); | |
7e66d5e2 | 3747 | Comm::Read(pinning.serverConnection, pinning.readHandler); |
7ac40923 AR |
3748 | } |
3749 | ||
3750 | void | |
3751 | ConnStateData::stopPinnedConnectionMonitoring() | |
3752 | { | |
aee3523a | 3753 | if (pinning.readHandler != nullptr) { |
7e66d5e2 | 3754 | Comm::ReadCancel(pinning.serverConnection->fd, pinning.readHandler); |
aee3523a | 3755 | pinning.readHandler = nullptr; |
7ac40923 AR |
3756 | } |
3757 | } | |
3758 | ||
96aedee5 CT |
3759 | #if USE_OPENSSL |
3760 | bool | |
3761 | ConnStateData::handleIdleClientPinnedTlsRead() | |
3762 | { | |
3763 | // A ready-for-reading connection means that the TLS server either closed | |
3764 | // the connection, sent us some unexpected HTTP data, or started TLS | |
3765 | // renegotiations. We should close the connection except for the last case. | |
3766 | ||
3767 | Must(pinning.serverConnection != nullptr); | |
33cc0629 | 3768 | auto ssl = fd_table[pinning.serverConnection->fd].ssl.get(); |
96aedee5 CT |
3769 | if (!ssl) |
3770 | return false; | |
3771 | ||
3772 | char buf[1]; | |
3773 | const int readResult = SSL_read(ssl, buf, sizeof(buf)); | |
3774 | ||
3775 | if (readResult > 0 || SSL_pending(ssl) > 0) { | |
3776 | debugs(83, 2, pinning.serverConnection << " TLS application data read"); | |
3777 | return false; | |
3778 | } | |
3779 | ||
3780 | switch(const int error = SSL_get_error(ssl, readResult)) { | |
3781 | case SSL_ERROR_WANT_WRITE: | |
3782 | debugs(83, DBG_IMPORTANT, pinning.serverConnection << " TLS SSL_ERROR_WANT_WRITE request for idle pinned connection"); | |
09835feb AR |
3783 | [[fallthrough]]; // to restart monitoring, for now |
3784 | ||
96aedee5 CT |
3785 | case SSL_ERROR_NONE: |
3786 | case SSL_ERROR_WANT_READ: | |
3787 | startPinnedConnectionMonitoring(); | |
3788 | return true; | |
3789 | ||
3790 | default: | |
3791 | debugs(83, 2, pinning.serverConnection << " TLS error: " << error); | |
3792 | return false; | |
3793 | } | |
3794 | ||
3795 | // not reached | |
3796 | return true; | |
3797 | } | |
3798 | #endif | |
3799 | ||
7ac40923 AR |
3800 | /// Our read handler called by Comm when the server either closes an idle pinned connection or |
3801 | /// perhaps unexpectedly sends something on that idle (from Squid p.o.v.) connection. | |
3802 | void | |
3803 | ConnStateData::clientPinnedConnectionRead(const CommIoCbParams &io) | |
3804 | { | |
aee3523a | 3805 | pinning.readHandler = nullptr; // Comm unregisters handlers before calling |
7ac40923 | 3806 | |
c8407295 | 3807 | if (io.flag == Comm::ERR_CLOSING) |
7ac40923 AR |
3808 | return; // close handler will clean up |
3809 | ||
96aedee5 CT |
3810 | Must(pinning.serverConnection == io.conn); |
3811 | ||
3812 | #if USE_OPENSSL | |
3813 | if (handleIdleClientPinnedTlsRead()) | |
3814 | return; | |
3815 | #endif | |
3816 | ||
e500cc89 | 3817 | const bool clientIsIdle = pipeline.empty(); |
7ac40923 AR |
3818 | |
3819 | debugs(33, 3, "idle pinned " << pinning.serverConnection << " read " << | |
3820 | io.size << (clientIsIdle ? " with idle client" : "")); | |
3821 | ||
7ac40923 AR |
3822 | pinning.serverConnection->close(); |
3823 | ||
3824 | // If we are still sending data to the client, do not close now. When we are done sending, | |
4a4fbcef | 3825 | // ConnStateData::kick() checks pinning.serverConnection and will close. |
7ac40923 | 3826 | // However, if we are idle, then we must close to inform the idle client and minimize races. |
aee3523a | 3827 | if (clientIsIdle && clientConnection != nullptr) |
7ac40923 | 3828 | clientConnection->close(); |
d67acb4e AJ |
3829 | } |
3830 | ||
daf80700 CT |
3831 | Comm::ConnectionPointer |
3832 | ConnStateData::borrowPinnedConnection(HttpRequest *request, const AccessLogEntryPointer &ale) | |
d67acb4e | 3833 | { |
daf80700 CT |
3834 | debugs(33, 7, pinning.serverConnection); |
3835 | Must(request); | |
85563fd9 | 3836 | |
daf80700 | 3837 | const auto pinningError = [&](const err_type type) { |
89b1d7a2 | 3838 | unpinConnection(true); |
daf80700 CT |
3839 | HttpRequestPointer requestPointer = request; |
3840 | return ErrorState::NewForwarding(type, requestPointer, ale); | |
3841 | }; | |
3842 | ||
3843 | if (!Comm::IsConnOpen(pinning.serverConnection)) | |
3844 | throw pinningError(ERR_ZERO_SIZE_OBJECT); | |
d67acb4e | 3845 | |
daf80700 CT |
3846 | if (pinning.auth && pinning.host && strcasecmp(pinning.host, request->url.host()) != 0) |
3847 | throw pinningError(ERR_CANNOT_FORWARD); // or generalize ERR_CONFLICT_HOST | |
3848 | ||
3849 | if (pinning.port != request->url.port()) | |
3850 | throw pinningError(ERR_CANNOT_FORWARD); // or generalize ERR_CONFLICT_HOST | |
3851 | ||
3852 | if (pinning.peer && !cbdataReferenceValid(pinning.peer)) | |
3853 | throw pinningError(ERR_ZERO_SIZE_OBJECT); | |
3854 | ||
3855 | if (pinning.peerAccessDenied) | |
3856 | throw pinningError(ERR_CANNOT_FORWARD); // or generalize ERR_FORWARDING_DENIED | |
3857 | ||
3858 | stopPinnedConnectionMonitoring(); | |
73c36fd9 | 3859 | return pinning.serverConnection; |
d67acb4e AJ |
3860 | } |
3861 | ||
89b1d7a2 | 3862 | Comm::ConnectionPointer |
daf80700 | 3863 | ConnStateData::BorrowPinnedConnection(HttpRequest *request, const AccessLogEntryPointer &ale) |
89b1d7a2 | 3864 | { |
daf80700 CT |
3865 | if (const auto connManager = request ? request->pinnedConnection() : nullptr) |
3866 | return connManager->borrowPinnedConnection(request, ale); | |
89b1d7a2 | 3867 | |
daf80700 CT |
3868 | // ERR_CANNOT_FORWARD is somewhat misleading here; we can still forward, but |
3869 | // there is no point since the client connection is now gone | |
3870 | HttpRequestPointer requestPointer = request; | |
3871 | throw ErrorState::NewForwarding(ERR_CANNOT_FORWARD, requestPointer, ale); | |
89b1d7a2 AR |
3872 | } |
3873 | ||
b1cf2350 | 3874 | void |
89b1d7a2 | 3875 | ConnStateData::unpinConnection(const bool andClose) |
d67acb4e | 3876 | { |
bf95c10a | 3877 | debugs(33, 3, pinning.serverConnection); |
85563fd9 | 3878 | |
8275c50c | 3879 | cbdataReferenceDone(pinning.peer); |
d67acb4e | 3880 | |
d7ce0bcd | 3881 | if (Comm::IsConnOpen(pinning.serverConnection)) { |
aee3523a | 3882 | if (pinning.closeHandler != nullptr) { |
87f237a9 | 3883 | comm_remove_close_handler(pinning.serverConnection->fd, pinning.closeHandler); |
aee3523a | 3884 | pinning.closeHandler = nullptr; |
87f237a9 | 3885 | } |
89b1d7a2 | 3886 | |
f8e4867b | 3887 | stopPinnedConnectionMonitoring(); |
89b1d7a2 AR |
3888 | |
3889 | // close the server side socket if requested | |
3890 | if (andClose) | |
3891 | pinning.serverConnection->close(); | |
aee3523a | 3892 | pinning.serverConnection = nullptr; |
d67acb4e | 3893 | } |
d7ce0bcd | 3894 | |
d67acb4e | 3895 | safe_free(pinning.host); |
e3a4aecc | 3896 | |
693cb033 | 3897 | pinning.zeroReply = false; |
daf80700 | 3898 | pinning.peerAccessDenied = false; |
693cb033 | 3899 | |
e3a4aecc AJ |
3900 | /* NOTE: pinning.pinned should be kept. This combined with fd == -1 at the end of a request indicates that the host |
3901 | * connection has gone away */ | |
d67acb4e | 3902 | } |
44352c16 | 3903 | |
da6dbcd1 | 3904 | void |
ba3fe8d9 | 3905 | ConnStateData::terminateAll(const Error &rawError, const LogTagsErrors <e) |
da6dbcd1 | 3906 | { |
ba3fe8d9 EB |
3907 | auto error = rawError; // (cheap) copy so that we can detail |
3908 | // We detail even ERR_NONE: There should be no transactions left, and | |
3909 | // detailed ERR_NONE will be unused. Otherwise, this detail helps in triage. | |
ea3f56e2 | 3910 | if (error.details.empty()) { |
ba3fe8d9 | 3911 | static const auto d = MakeNamedErrorDetail("WITH_CLIENT"); |
ea3f56e2 | 3912 | error.details.push_back(d); |
ba3fe8d9 EB |
3913 | } |
3914 | ||
83b053a0 | 3915 | debugs(33, 3, pipeline.count() << '/' << pipeline.nrequests << " after " << error); |
da6dbcd1 | 3916 | |
83b053a0 CT |
3917 | if (pipeline.empty()) { |
3918 | bareError.update(error); // XXX: bareLogTagsErrors | |
3919 | } else { | |
3920 | // We terminate the current CONNECT/PUT/etc. context below, logging any | |
3921 | // error details, but that context may leave unparsed bytes behind. | |
3922 | // Consume them to stop checkLogging() from logging them again later. | |
3923 | const auto intputToConsume = | |
3924 | #if USE_OPENSSL | |
3925 | parsingTlsHandshake ? "TLS handshake" : // more specific than CONNECT | |
3926 | #endif | |
3927 | bodyPipe ? "HTTP request body" : | |
3928 | pipeline.back()->mayUseConnection() ? "HTTP CONNECT" : | |
3929 | nullptr; | |
3930 | ||
3931 | while (const auto context = pipeline.front()) { | |
3932 | context->noteIoError(error, lte); | |
3933 | context->finished(); // cleanup and self-deregister | |
3934 | assert(context != pipeline.front()); | |
3935 | } | |
da6dbcd1 | 3936 | |
83b053a0 CT |
3937 | if (intputToConsume && !inBuf.isEmpty()) { |
3938 | debugs(83, 5, "forgetting client " << intputToConsume << " bytes: " << inBuf.length()); | |
3939 | inBuf.clear(); | |
3940 | } | |
3941 | } | |
3942 | ||
3943 | clientConnection->close(); | |
3944 | } | |
3945 | ||
3946 | /// log the last (attempt at) transaction if nobody else did | |
3947 | void | |
3948 | ConnStateData::checkLogging() | |
3949 | { | |
3950 | // to simplify our logic, we assume that terminateAll() has been called | |
3951 | assert(pipeline.empty()); | |
da6dbcd1 EB |
3952 | |
3953 | // do not log connections that closed after a transaction (it is normal) | |
3954 | // TODO: access_log needs ACLs to match received-no-bytes connections | |
6b2b6cfe | 3955 | if (pipeline.nrequests && inBuf.isEmpty()) |
da6dbcd1 EB |
3956 | return; |
3957 | ||
3958 | /* Create a temporary ClientHttpRequest object. Its destructor will log. */ | |
3959 | ClientHttpRequest http(this); | |
3960 | http.req_sz = inBuf.length(); | |
801cfc26 | 3961 | // XXX: Or we died while waiting for the pinned connection to become idle. |
bec110e4 | 3962 | http.setErrorUri("error:transaction-end-before-headers"); |
83b053a0 | 3963 | http.updateError(bareError); |
da6dbcd1 | 3964 | } |
a6678149 | 3965 | |
6b2b6cfe | 3966 | bool |
9ce4a1eb | 3967 | ConnStateData::shouldPreserveClientData() const |
6b2b6cfe | 3968 | { |
9ce4a1eb CT |
3969 | // PROXY protocol bytes are meant for us and, hence, cannot be tunneled |
3970 | if (needProxyProtocolHeader_) | |
3971 | return false; | |
3972 | ||
3973 | // If our decision here is negative, configuration changes are irrelevant. | |
3974 | // Otherwise, clientTunnelOnError() rechecks configuration before tunneling. | |
3975 | if (!Config.accessList.on_unsupported_protocol) | |
3976 | return false; | |
3977 | ||
3978 | // TODO: Figure out whether/how we can support FTP tunneling. | |
3979 | if (port->transport.protocol == AnyP::PROTO_FTP) | |
3980 | return false; | |
3981 | ||
6b2b6cfe | 3982 | #if USE_OPENSSL |
9ce4a1eb CT |
3983 | if (parsingTlsHandshake) |
3984 | return true; | |
3985 | ||
3986 | // the 1st HTTP request on a bumped connection | |
3987 | if (!parsedBumpedRequestCount && switchedToHttps()) | |
3988 | return true; | |
6b2b6cfe | 3989 | #endif |
9ce4a1eb | 3990 | |
6ed68767 AR |
3991 | // the 1st HTTP(S) request on a connection to an intercepting port |
3992 | if (!pipeline.nrequests && transparent()) | |
9ce4a1eb CT |
3993 | return true; |
3994 | ||
3995 | return false; | |
6b2b6cfe | 3996 | } |
aff439e0 | 3997 | |
75d47340 CT |
3998 | NotePairs::Pointer |
3999 | ConnStateData::notes() | |
4000 | { | |
4001 | if (!theNotes) | |
4002 | theNotes = new NotePairs; | |
4003 | return theNotes; | |
4004 | } | |
4005 | ||
801cfc26 CT |
4006 | std::ostream & |
4007 | operator <<(std::ostream &os, const ConnStateData::PinnedIdleContext &pic) | |
4008 | { | |
4009 | return os << pic.connection << ", request=" << pic.request; | |
4010 | } | |
9f107d9a | 4011 | |
1c2b4465 CT |
4012 | std::ostream & |
4013 | operator <<(std::ostream &os, const ConnStateData::ServerConnectionContext &scc) | |
4014 | { | |
4015 | return os << scc.conn_ << ", srv_bytes=" << scc.preReadServerBytes.length(); | |
4016 | } | |
4017 |