net/socket/ssl_client_socket_pool.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/socket/ssl_client_socket_pool.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/metrics/field_trial.h"
  10 #include "base/metrics/histogram.h"
  11 #include "base/metrics/sparse_histogram.h"
  12 #include "base/stl_util.h"
  13 #include "base/values.h"
  14 #include "net/base/host_port_pair.h"
  15 #include "net/base/net_errors.h"
  16 #include "net/http/http_proxy_client_socket.h"
  17 #include "net/http/http_proxy_client_socket_pool.h"
  18 #include "net/socket/client_socket_factory.h"
  19 #include "net/socket/client_socket_handle.h"
  20 #include "net/socket/socks_client_socket_pool.h"
  21 #include "net/socket/ssl_client_socket.h"
  22 #include "net/socket/transport_client_socket_pool.h"
  23 #include "net/ssl/ssl_cert_request_info.h"
  24 #include "net/ssl/ssl_connection_status_flags.h"
  25 #include "net/ssl/ssl_info.h"
  26
  27 namespace net {
  28
  29 SSLSocketParams::SSLSocketParams(
  30     const scoped_refptr<TransportSocketParams>& direct_params,
  31     const scoped_refptr<SOCKSSocketParams>& socks_proxy_params,
  32     const scoped_refptr<HttpProxySocketParams>& http_proxy_params,
  33     const HostPortPair& host_and_port,
  34     const SSLConfig& ssl_config,
  35     PrivacyMode privacy_mode,
  36     int load_flags,
  37     bool force_spdy_over_ssl,
  38     bool want_spdy_over_npn)
  39     : direct_params_(direct_params),
  40       socks_proxy_params_(socks_proxy_params),
  41       http_proxy_params_(http_proxy_params),
  42       host_and_port_(host_and_port),
  43       ssl_config_(ssl_config),
  44       privacy_mode_(privacy_mode),
  45       load_flags_(load_flags),
  46       force_spdy_over_ssl_(force_spdy_over_ssl),
  47       want_spdy_over_npn_(want_spdy_over_npn),
  48       ignore_limits_(false) {
  49   if (direct_params_.get()) {
  50     DCHECK(!socks_proxy_params_.get());
  51     DCHECK(!http_proxy_params_.get());
  52     ignore_limits_ = direct_params_->ignore_limits();
  53   } else if (socks_proxy_params_.get()) {
  54     DCHECK(!http_proxy_params_.get());
  55     ignore_limits_ = socks_proxy_params_->ignore_limits();
  56   } else {
  57     DCHECK(http_proxy_params_.get());
  58     ignore_limits_ = http_proxy_params_->ignore_limits();
  59   }
  60 }
  61
  62 SSLSocketParams::~SSLSocketParams() {}
  63
  64 SSLSocketParams::ConnectionType SSLSocketParams::GetConnectionType() const {
  65   if (direct_params_.get()) {
  66     DCHECK(!socks_proxy_params_.get());
  67     DCHECK(!http_proxy_params_.get());
  68     return DIRECT;
  69   }
  70
  71   if (socks_proxy_params_.get()) {
  72     DCHECK(!http_proxy_params_.get());
  73     return SOCKS_PROXY;
  74   }
  75
  76   DCHECK(http_proxy_params_.get());
  77   return HTTP_PROXY;
  78 }
  79
  80 const scoped_refptr<TransportSocketParams>&
  81 SSLSocketParams::GetDirectConnectionParams() const {
  82   DCHECK_EQ(GetConnectionType(), DIRECT);
  83   return direct_params_;
  84 }
  85
  86 const scoped_refptr<SOCKSSocketParams>&
  87 SSLSocketParams::GetSocksProxyConnectionParams() const {
  88   DCHECK_EQ(GetConnectionType(), SOCKS_PROXY);
  89   return socks_proxy_params_;
  90 }
  91
  92 const scoped_refptr<HttpProxySocketParams>&
  93 SSLSocketParams::GetHttpProxyConnectionParams() const {
  94   DCHECK_EQ(GetConnectionType(), HTTP_PROXY);
  95   return http_proxy_params_;
  96 }
  97
  98 SSLConnectJobMessenger::SocketAndCallback::SocketAndCallback(
  99     SSLClientSocket* ssl_socket,
 100     const base::Closure& job_resumption_callback)
 101     : socket(ssl_socket), callback(job_resumption_callback) {
 102 }
 103
 104 SSLConnectJobMessenger::SocketAndCallback::~SocketAndCallback() {
 105 }
 106
 107 SSLConnectJobMessenger::SSLConnectJobMessenger(
 108     const base::Closure& messenger_finished_callback)
 109     : messenger_finished_callback_(messenger_finished_callback),
 110       weak_factory_(this) {
 111 }
 112
 113 SSLConnectJobMessenger::~SSLConnectJobMessenger() {
 114 }
 115
 116 void SSLConnectJobMessenger::RemovePendingSocket(SSLClientSocket* ssl_socket) {
 117   // Sockets do not need to be removed from connecting_sockets_ because
 118   // OnSSLHandshakeCompleted will do this.
 119   for (SSLPendingSocketsAndCallbacks::iterator it =
 120            pending_sockets_and_callbacks_.begin();
 121        it != pending_sockets_and_callbacks_.end();
 122        ++it) {
 123     if (it->socket == ssl_socket) {
 124       pending_sockets_and_callbacks_.erase(it);
 125       return;
 126     }
 127   }
 128 }
 129
 130 bool SSLConnectJobMessenger::CanProceed(SSLClientSocket* ssl_socket) {
 131   // If there are no connecting sockets, allow the connection to proceed.
 132   return connecting_sockets_.empty();
 133 }
 134
 135 void SSLConnectJobMessenger::MonitorConnectionResult(
 136     SSLClientSocket* ssl_socket) {
 137   connecting_sockets_.push_back(ssl_socket);
 138   ssl_socket->SetHandshakeCompletionCallback(
 139       base::Bind(&SSLConnectJobMessenger::OnSSLHandshakeCompleted,
 140                  weak_factory_.GetWeakPtr()));
 141 }
 142
 143 void SSLConnectJobMessenger::AddPendingSocket(SSLClientSocket* ssl_socket,
 144                                               const base::Closure& callback) {
 145   DCHECK(!connecting_sockets_.empty());
 146   pending_sockets_and_callbacks_.push_back(
 147       SocketAndCallback(ssl_socket, callback));
 148 }
 149
 150 void SSLConnectJobMessenger::OnSSLHandshakeCompleted() {
 151   connecting_sockets_.clear();
 152   SSLPendingSocketsAndCallbacks temp_list;
 153   temp_list.swap(pending_sockets_and_callbacks_);
 154   base::Closure messenger_finished_callback = messenger_finished_callback_;
 155   messenger_finished_callback.Run();
 156   RunAllCallbacks(temp_list);
 157 }
 158
 159 void SSLConnectJobMessenger::RunAllCallbacks(
 160     const SSLPendingSocketsAndCallbacks& pending_sockets_and_callbacks) {
 161   for (std::vector<SocketAndCallback>::const_iterator it =
 162            pending_sockets_and_callbacks.begin();
 163        it != pending_sockets_and_callbacks.end();
 164        ++it) {
 165     it->callback.Run();
 166   }
 167 }
 168
 169 // Timeout for the SSL handshake portion of the connect.
 170 static const int kSSLHandshakeTimeoutInSeconds = 30;
 171
 172 SSLConnectJob::SSLConnectJob(const std::string& group_name,
 173                              RequestPriority priority,
 174                              const scoped_refptr<SSLSocketParams>& params,
 175                              const base::TimeDelta& timeout_duration,
 176                              TransportClientSocketPool* transport_pool,
 177                              SOCKSClientSocketPool* socks_pool,
 178                              HttpProxyClientSocketPool* http_proxy_pool,
 179                              ClientSocketFactory* client_socket_factory,
 180                              HostResolver* host_resolver,
 181                              const SSLClientSocketContext& context,
 182                              const GetMessengerCallback& get_messenger_callback,
 183                              Delegate* delegate,
 184                              NetLog* net_log)
 185     : ConnectJob(group_name,
 186                  timeout_duration,
 187                  priority,
 188                  delegate,
 189                  BoundNetLog::Make(net_log, NetLog::SOURCE_CONNECT_JOB)),
 190       params_(params),
 191       transport_pool_(transport_pool),
 192       socks_pool_(socks_pool),
 193       http_proxy_pool_(http_proxy_pool),
 194       client_socket_factory_(client_socket_factory),
 195       host_resolver_(host_resolver),
 196       context_(context.cert_verifier,
 197                context.channel_id_service,
 198                context.transport_security_state,
 199                context.cert_transparency_verifier,
 200                context.cert_policy_enforcer,
 201                (params->privacy_mode() == PRIVACY_MODE_ENABLED
 202                     ? "pm/" + context.ssl_session_cache_shard
 203                     : context.ssl_session_cache_shard)),
 204       io_callback_(
 205           base::Bind(&SSLConnectJob::OnIOComplete, base::Unretained(this))),
 206       messenger_(NULL),
 207       get_messenger_callback_(get_messenger_callback),
 208       weak_factory_(this) {
 209 }
 210
 211 SSLConnectJob::~SSLConnectJob() {
 212   if (ssl_socket_.get() && messenger_)
 213     messenger_->RemovePendingSocket(ssl_socket_.get());
 214 }
 215
 216 LoadState SSLConnectJob::GetLoadState() const {
 217   switch (next_state_) {
 218     case STATE_TUNNEL_CONNECT_COMPLETE:
 219       if (transport_socket_handle_->socket())
 220         return LOAD_STATE_ESTABLISHING_PROXY_TUNNEL;
 221       // else, fall through.
 222     case STATE_TRANSPORT_CONNECT:
 223     case STATE_TRANSPORT_CONNECT_COMPLETE:
 224     case STATE_SOCKS_CONNECT:
 225     case STATE_SOCKS_CONNECT_COMPLETE:
 226     case STATE_TUNNEL_CONNECT:
 227       return transport_socket_handle_->GetLoadState();
 228     case STATE_CREATE_SSL_SOCKET:
 229     case STATE_CHECK_FOR_RESUME:
 230     case STATE_SSL_CONNECT:
 231     case STATE_SSL_CONNECT_COMPLETE:
 232       return LOAD_STATE_SSL_HANDSHAKE;
 233     default:
 234       NOTREACHED();
 235       return LOAD_STATE_IDLE;
 236   }
 237 }
 238
 239 void SSLConnectJob::GetAdditionalErrorState(ClientSocketHandle* handle) {
 240   // Headers in |error_response_info_| indicate a proxy tunnel setup
 241   // problem. See DoTunnelConnectComplete.
 242   if (error_response_info_.headers.get()) {
 243     handle->set_pending_http_proxy_connection(
 244         transport_socket_handle_.release());
 245   }
 246   handle->set_ssl_error_response_info(error_response_info_);
 247   if (!connect_timing_.ssl_start.is_null())
 248     handle->set_is_ssl_error(true);
 249 }
 250
 251 void SSLConnectJob::OnIOComplete(int result) {
 252   int rv = DoLoop(result);
 253   if (rv != ERR_IO_PENDING)
 254     NotifyDelegateOfCompletion(rv);  // Deletes |this|.
 255 }
 256
 257 int SSLConnectJob::DoLoop(int result) {
 258   DCHECK_NE(next_state_, STATE_NONE);
 259
 260   int rv = result;
 261   do {
 262     State state = next_state_;
 263     next_state_ = STATE_NONE;
 264     switch (state) {
 265       case STATE_TRANSPORT_CONNECT:
 266         DCHECK_EQ(OK, rv);
 267         rv = DoTransportConnect();
 268         break;
 269       case STATE_TRANSPORT_CONNECT_COMPLETE:
 270         rv = DoTransportConnectComplete(rv);
 271         break;
 272       case STATE_SOCKS_CONNECT:
 273         DCHECK_EQ(OK, rv);
 274         rv = DoSOCKSConnect();
 275         break;
 276       case STATE_SOCKS_CONNECT_COMPLETE:
 277         rv = DoSOCKSConnectComplete(rv);
 278         break;
 279       case STATE_TUNNEL_CONNECT:
 280         DCHECK_EQ(OK, rv);
 281         rv = DoTunnelConnect();
 282         break;
 283       case STATE_TUNNEL_CONNECT_COMPLETE:
 284         rv = DoTunnelConnectComplete(rv);
 285         break;
 286       case STATE_CREATE_SSL_SOCKET:
 287         rv = DoCreateSSLSocket();
 288         break;
 289       case STATE_CHECK_FOR_RESUME:
 290         rv = DoCheckForResume();
 291         break;
 292       case STATE_SSL_CONNECT:
 293         DCHECK_EQ(OK, rv);
 294         rv = DoSSLConnect();
 295         break;
 296       case STATE_SSL_CONNECT_COMPLETE:
 297         rv = DoSSLConnectComplete(rv);
 298         break;
 299       default:
 300         NOTREACHED() << "bad state";
 301         rv = ERR_FAILED;
 302         break;
 303     }
 304   } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE);
 305
 306   return rv;
 307 }
 308
 309 int SSLConnectJob::DoTransportConnect() {
 310   DCHECK(transport_pool_);
 311
 312   next_state_ = STATE_TRANSPORT_CONNECT_COMPLETE;
 313   transport_socket_handle_.reset(new ClientSocketHandle());
 314   scoped_refptr<TransportSocketParams> direct_params =
 315       params_->GetDirectConnectionParams();
 316   return transport_socket_handle_->Init(group_name(),
 317                                         direct_params,
 318                                         priority(),
 319                                         io_callback_,
 320                                         transport_pool_,
 321                                         net_log());
 322 }
 323
 324 int SSLConnectJob::DoTransportConnectComplete(int result) {
 325   if (result == OK)
 326     next_state_ = STATE_CREATE_SSL_SOCKET;
 327
 328   return result;
 329 }
 330
 331 int SSLConnectJob::DoSOCKSConnect() {
 332   DCHECK(socks_pool_);
 333   next_state_ = STATE_SOCKS_CONNECT_COMPLETE;
 334   transport_socket_handle_.reset(new ClientSocketHandle());
 335   scoped_refptr<SOCKSSocketParams> socks_proxy_params =
 336       params_->GetSocksProxyConnectionParams();
 337   return transport_socket_handle_->Init(group_name(),
 338                                         socks_proxy_params,
 339                                         priority(),
 340                                         io_callback_,
 341                                         socks_pool_,
 342                                         net_log());
 343 }
 344
 345 int SSLConnectJob::DoSOCKSConnectComplete(int result) {
 346   if (result == OK)
 347     next_state_ = STATE_CREATE_SSL_SOCKET;
 348
 349   return result;
 350 }
 351
 352 int SSLConnectJob::DoTunnelConnect() {
 353   DCHECK(http_proxy_pool_);
 354   next_state_ = STATE_TUNNEL_CONNECT_COMPLETE;
 355
 356   transport_socket_handle_.reset(new ClientSocketHandle());
 357   scoped_refptr<HttpProxySocketParams> http_proxy_params =
 358       params_->GetHttpProxyConnectionParams();
 359   return transport_socket_handle_->Init(group_name(),
 360                                         http_proxy_params,
 361                                         priority(),
 362                                         io_callback_,
 363                                         http_proxy_pool_,
 364                                         net_log());
 365 }
 366
 367 int SSLConnectJob::DoTunnelConnectComplete(int result) {
 368   // Extract the information needed to prompt for appropriate proxy
 369   // authentication so that when ClientSocketPoolBaseHelper calls
 370   // |GetAdditionalErrorState|, we can easily set the state.
 371   if (result == ERR_SSL_CLIENT_AUTH_CERT_NEEDED) {
 372     error_response_info_ = transport_socket_handle_->ssl_error_response_info();
 373   } else if (result == ERR_PROXY_AUTH_REQUESTED ||
 374              result == ERR_HTTPS_PROXY_TUNNEL_RESPONSE) {
 375     StreamSocket* socket = transport_socket_handle_->socket();
 376     HttpProxyClientSocket* tunnel_socket =
 377         static_cast<HttpProxyClientSocket*>(socket);
 378     error_response_info_ = *tunnel_socket->GetConnectResponseInfo();
 379   }
 380   if (result < 0)
 381     return result;
 382   next_state_ = STATE_CREATE_SSL_SOCKET;
 383   return result;
 384 }
 385
 386 int SSLConnectJob::DoCreateSSLSocket() {
 387   next_state_ = STATE_CHECK_FOR_RESUME;
 388
 389   // Reset the timeout to just the time allowed for the SSL handshake.
 390   ResetTimer(base::TimeDelta::FromSeconds(kSSLHandshakeTimeoutInSeconds));
 391
 392   // If the handle has a fresh socket, get its connect start and DNS times.
 393   // This should always be the case.
 394   const LoadTimingInfo::ConnectTiming& socket_connect_timing =
 395       transport_socket_handle_->connect_timing();
 396   if (!transport_socket_handle_->is_reused() &&
 397       !socket_connect_timing.connect_start.is_null()) {
 398     // Overwriting |connect_start| serves two purposes - it adjusts timing so
 399     // |connect_start| doesn't include dns times, and it adjusts the time so
 400     // as not to include time spent waiting for an idle socket.
 401     connect_timing_.connect_start = socket_connect_timing.connect_start;
 402     connect_timing_.dns_start = socket_connect_timing.dns_start;
 403     connect_timing_.dns_end = socket_connect_timing.dns_end;
 404   }
 405
 406   ssl_socket_ = client_socket_factory_->CreateSSLClientSocket(
 407       transport_socket_handle_.Pass(),
 408       params_->host_and_port(),
 409       params_->ssl_config(),
 410       context_);
 411
 412   if (!ssl_socket_->InSessionCache())
 413     messenger_ = get_messenger_callback_.Run(ssl_socket_->GetSessionCacheKey());
 414
 415   return OK;
 416 }
 417
 418 int SSLConnectJob::DoCheckForResume() {
 419   next_state_ = STATE_SSL_CONNECT;
 420
 421   if (!messenger_)
 422     return OK;
 423
 424   if (messenger_->CanProceed(ssl_socket_.get())) {
 425     messenger_->MonitorConnectionResult(ssl_socket_.get());
 426     // The SSLConnectJob no longer needs access to the messenger after this
 427     // point.
 428     messenger_ = NULL;
 429     return OK;
 430   }
 431
 432   messenger_->AddPendingSocket(ssl_socket_.get(),
 433                                base::Bind(&SSLConnectJob::ResumeSSLConnection,
 434                                           weak_factory_.GetWeakPtr()));
 435
 436   return ERR_IO_PENDING;
 437 }
 438
 439 int SSLConnectJob::DoSSLConnect() {
 440   next_state_ = STATE_SSL_CONNECT_COMPLETE;
 441
 442   connect_timing_.ssl_start = base::TimeTicks::Now();
 443
 444   return ssl_socket_->Connect(io_callback_);
 445 }
 446
 447 int SSLConnectJob::DoSSLConnectComplete(int result) {
 448   connect_timing_.ssl_end = base::TimeTicks::Now();
 449
 450   SSLClientSocket::NextProtoStatus status =
 451       SSLClientSocket::kNextProtoUnsupported;
 452   std::string proto;
 453   // GetNextProto will fail and and trigger a NOTREACHED if we pass in a socket
 454   // that hasn't had SSL_ImportFD called on it. If we get a certificate error
 455   // here, then we know that we called SSL_ImportFD.
 456   if (result == OK || IsCertificateError(result)) {
 457     status = ssl_socket_->GetNextProto(&proto);
 458     ssl_socket_->RecordNegotiationExtension();
 459   }
 460
 461   // If we want spdy over npn, make sure it succeeded.
 462   if (status == SSLClientSocket::kNextProtoNegotiated) {
 463     ssl_socket_->set_was_npn_negotiated(true);
 464     NextProto protocol_negotiated =
 465         SSLClientSocket::NextProtoFromString(proto);
 466     ssl_socket_->set_protocol_negotiated(protocol_negotiated);
 467     // If we negotiated a SPDY version, it must have been present in
 468     // SSLConfig::next_protos.
 469     // TODO(mbelshe): Verify this.
 470     if (protocol_negotiated >= kProtoSPDYMinimumVersion &&
 471         protocol_negotiated <= kProtoSPDYMaximumVersion) {
 472       ssl_socket_->set_was_spdy_negotiated(true);
 473     }
 474   }
 475   if (params_->want_spdy_over_npn() && !ssl_socket_->was_spdy_negotiated())
 476     return ERR_NPN_NEGOTIATION_FAILED;
 477
 478   // Spdy might be turned on by default, or it might be over npn.
 479   bool using_spdy = params_->force_spdy_over_ssl() ||
 480       params_->want_spdy_over_npn();
 481
 482   if (result == OK ||
 483       ssl_socket_->IgnoreCertError(result, params_->load_flags())) {
 484     DCHECK(!connect_timing_.ssl_start.is_null());
 485     base::TimeDelta connect_duration =
 486         connect_timing_.ssl_end - connect_timing_.ssl_start;
 487     if (using_spdy) {
 488       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SpdyConnectionLatency_2",
 489                                  connect_duration,
 490                                  base::TimeDelta::FromMilliseconds(1),
 491                                  base::TimeDelta::FromMinutes(1),
 492                                  100);
 493     }
 494
 495     UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_2",
 496                                connect_duration,
 497                                base::TimeDelta::FromMilliseconds(1),
 498                                base::TimeDelta::FromMinutes(1),
 499                                100);
 500
 501     SSLInfo ssl_info;
 502     ssl_socket_->GetSSLInfo(&ssl_info);
 503
 504     UMA_HISTOGRAM_SPARSE_SLOWLY("Net.SSL_CipherSuite",
 505                                 SSLConnectionStatusToCipherSuite(
 506                                     ssl_info.connection_status));
 507
 508     UMA_HISTOGRAM_BOOLEAN(
 509         "Net.RenegotiationExtensionSupported",
 510         (ssl_info.connection_status &
 511          SSL_CONNECTION_NO_RENEGOTIATION_EXTENSION) == 0);
 512
 513     if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_RESUME) {
 514       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Resume_Handshake",
 515                                  connect_duration,
 516                                  base::TimeDelta::FromMilliseconds(1),
 517                                  base::TimeDelta::FromMinutes(1),
 518                                  100);
 519     } else if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_FULL) {
 520       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Full_Handshake",
 521                                  connect_duration,
 522                                  base::TimeDelta::FromMilliseconds(1),
 523                                  base::TimeDelta::FromMinutes(1),
 524                                  100);
 525     }
 526
 527     const std::string& host = params_->host_and_port().host();
 528     bool is_google =
 529         host == "google.com" ||
 530         (host.size() > 11 && host.rfind(".google.com") == host.size() - 11);
 531     if (is_google) {
 532       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Google2",
 533                                  connect_duration,
 534                                  base::TimeDelta::FromMilliseconds(1),
 535                                  base::TimeDelta::FromMinutes(1),
 536                                  100);
 537       if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_RESUME) {
 538         UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Google_"
 539                                        "Resume_Handshake",
 540                                    connect_duration,
 541                                    base::TimeDelta::FromMilliseconds(1),
 542                                    base::TimeDelta::FromMinutes(1),
 543                                    100);
 544       } else if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_FULL) {
 545         UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Google_"
 546                                        "Full_Handshake",
 547                                    connect_duration,
 548                                    base::TimeDelta::FromMilliseconds(1),
 549                                    base::TimeDelta::FromMinutes(1),
 550                                    100);
 551       }
 552     }
 553   }
 554
 555   if (result == OK || IsCertificateError(result)) {
 556     SetSocket(ssl_socket_.Pass());
 557   } else if (result == ERR_SSL_CLIENT_AUTH_CERT_NEEDED) {
 558     error_response_info_.cert_request_info = new SSLCertRequestInfo;
 559     ssl_socket_->GetSSLCertRequestInfo(
 560         error_response_info_.cert_request_info.get());
 561   }
 562
 563   return result;
 564 }
 565
 566 void SSLConnectJob::ResumeSSLConnection() {
 567   DCHECK_EQ(next_state_, STATE_SSL_CONNECT);
 568   messenger_ = NULL;
 569   OnIOComplete(OK);
 570 }
 571
 572 SSLConnectJob::State SSLConnectJob::GetInitialState(
 573     SSLSocketParams::ConnectionType connection_type) {
 574   switch (connection_type) {
 575     case SSLSocketParams::DIRECT:
 576       return STATE_TRANSPORT_CONNECT;
 577     case SSLSocketParams::HTTP_PROXY:
 578       return STATE_TUNNEL_CONNECT;
 579     case SSLSocketParams::SOCKS_PROXY:
 580       return STATE_SOCKS_CONNECT;
 581   }
 582   NOTREACHED();
 583   return STATE_NONE;
 584 }
 585
 586 int SSLConnectJob::ConnectInternal() {
 587   next_state_ = GetInitialState(params_->GetConnectionType());
 588   return DoLoop(OK);
 589 }
 590
 591 SSLClientSocketPool::SSLConnectJobFactory::SSLConnectJobFactory(
 592     TransportClientSocketPool* transport_pool,
 593     SOCKSClientSocketPool* socks_pool,
 594     HttpProxyClientSocketPool* http_proxy_pool,
 595     ClientSocketFactory* client_socket_factory,
 596     HostResolver* host_resolver,
 597     const SSLClientSocketContext& context,
 598     const SSLConnectJob::GetMessengerCallback& get_messenger_callback,
 599     NetLog* net_log)
 600     : transport_pool_(transport_pool),
 601       socks_pool_(socks_pool),
 602       http_proxy_pool_(http_proxy_pool),
 603       client_socket_factory_(client_socket_factory),
 604       host_resolver_(host_resolver),
 605       context_(context),
 606       get_messenger_callback_(get_messenger_callback),
 607       net_log_(net_log) {
 608   base::TimeDelta max_transport_timeout = base::TimeDelta();
 609   base::TimeDelta pool_timeout;
 610   if (transport_pool_)
 611     max_transport_timeout = transport_pool_->ConnectionTimeout();
 612   if (socks_pool_) {
 613     pool_timeout = socks_pool_->ConnectionTimeout();
 614     if (pool_timeout > max_transport_timeout)
 615       max_transport_timeout = pool_timeout;
 616   }
 617   if (http_proxy_pool_) {
 618     pool_timeout = http_proxy_pool_->ConnectionTimeout();
 619     if (pool_timeout > max_transport_timeout)
 620       max_transport_timeout = pool_timeout;
 621   }
 622   timeout_ = max_transport_timeout +
 623       base::TimeDelta::FromSeconds(kSSLHandshakeTimeoutInSeconds);
 624 }
 625
 626 SSLClientSocketPool::SSLConnectJobFactory::~SSLConnectJobFactory() {
 627 }
 628
 629 SSLClientSocketPool::SSLClientSocketPool(
 630     int max_sockets,
 631     int max_sockets_per_group,
 632     ClientSocketPoolHistograms* histograms,
 633     HostResolver* host_resolver,
 634     CertVerifier* cert_verifier,
 635     ChannelIDService* channel_id_service,
 636     TransportSecurityState* transport_security_state,
 637     CTVerifier* cert_transparency_verifier,
 638     CertPolicyEnforcer* cert_policy_enforcer,
 639     const std::string& ssl_session_cache_shard,
 640     ClientSocketFactory* client_socket_factory,
 641     TransportClientSocketPool* transport_pool,
 642     SOCKSClientSocketPool* socks_pool,
 643     HttpProxyClientSocketPool* http_proxy_pool,
 644     SSLConfigService* ssl_config_service,
 645     bool enable_ssl_connect_job_waiting,
 646     NetLog* net_log)
 647     : transport_pool_(transport_pool),
 648       socks_pool_(socks_pool),
 649       http_proxy_pool_(http_proxy_pool),
 650       base_(this,
 651             max_sockets,
 652             max_sockets_per_group,
 653             histograms,
 654             ClientSocketPool::unused_idle_socket_timeout(),
 655             ClientSocketPool::used_idle_socket_timeout(),
 656             new SSLConnectJobFactory(
 657                 transport_pool,
 658                 socks_pool,
 659                 http_proxy_pool,
 660                 client_socket_factory,
 661                 host_resolver,
 662                 SSLClientSocketContext(cert_verifier,
 663                                        channel_id_service,
 664                                        transport_security_state,
 665                                        cert_transparency_verifier,
 666                                        cert_policy_enforcer,
 667                                        ssl_session_cache_shard),
 668                 base::Bind(
 669                     &SSLClientSocketPool::GetOrCreateSSLConnectJobMessenger,
 670                     base::Unretained(this)),
 671                 net_log)),
 672       ssl_config_service_(ssl_config_service),
 673       enable_ssl_connect_job_waiting_(enable_ssl_connect_job_waiting) {
 674   if (ssl_config_service_.get())
 675     ssl_config_service_->AddObserver(this);
 676   if (transport_pool_)
 677     base_.AddLowerLayeredPool(transport_pool_);
 678   if (socks_pool_)
 679     base_.AddLowerLayeredPool(socks_pool_);
 680   if (http_proxy_pool_)
 681     base_.AddLowerLayeredPool(http_proxy_pool_);
 682 }
 683
 684 SSLClientSocketPool::~SSLClientSocketPool() {
 685   STLDeleteContainerPairSecondPointers(messenger_map_.begin(),
 686                                        messenger_map_.end());
 687   if (ssl_config_service_.get())
 688     ssl_config_service_->RemoveObserver(this);
 689 }
 690
 691 scoped_ptr<ConnectJob> SSLClientSocketPool::SSLConnectJobFactory::NewConnectJob(
 692     const std::string& group_name,
 693     const PoolBase::Request& request,
 694     ConnectJob::Delegate* delegate) const {
 695   return scoped_ptr<ConnectJob>(new SSLConnectJob(group_name,
 696                                                   request.priority(),
 697                                                   request.params(),
 698                                                   ConnectionTimeout(),
 699                                                   transport_pool_,
 700                                                   socks_pool_,
 701                                                   http_proxy_pool_,
 702                                                   client_socket_factory_,
 703                                                   host_resolver_,
 704                                                   context_,
 705                                                   get_messenger_callback_,
 706                                                   delegate,
 707                                                   net_log_));
 708 }
 709
 710 base::TimeDelta SSLClientSocketPool::SSLConnectJobFactory::ConnectionTimeout()
 711     const {
 712   return timeout_;
 713 }
 714
 715 int SSLClientSocketPool::RequestSocket(const std::string& group_name,
 716                                        const void* socket_params,
 717                                        RequestPriority priority,
 718                                        ClientSocketHandle* handle,
 719                                        const CompletionCallback& callback,
 720                                        const BoundNetLog& net_log) {
 721   const scoped_refptr<SSLSocketParams>* casted_socket_params =
 722       static_cast<const scoped_refptr<SSLSocketParams>*>(socket_params);
 723
 724   return base_.RequestSocket(group_name, *casted_socket_params, priority,
 725                              handle, callback, net_log);
 726 }
 727
 728 void SSLClientSocketPool::RequestSockets(
 729     const std::string& group_name,
 730     const void* params,
 731     int num_sockets,
 732     const BoundNetLog& net_log) {
 733   const scoped_refptr<SSLSocketParams>* casted_params =
 734       static_cast<const scoped_refptr<SSLSocketParams>*>(params);
 735
 736   base_.RequestSockets(group_name, *casted_params, num_sockets, net_log);
 737 }
 738
 739 void SSLClientSocketPool::CancelRequest(const std::string& group_name,
 740                                         ClientSocketHandle* handle) {
 741   base_.CancelRequest(group_name, handle);
 742 }
 743
 744 void SSLClientSocketPool::ReleaseSocket(const std::string& group_name,
 745                                         scoped_ptr<StreamSocket> socket,
 746                                         int id) {
 747   base_.ReleaseSocket(group_name, socket.Pass(), id);
 748 }
 749
 750 void SSLClientSocketPool::FlushWithError(int error) {
 751   base_.FlushWithError(error);
 752 }
 753
 754 void SSLClientSocketPool::CloseIdleSockets() {
 755   base_.CloseIdleSockets();
 756 }
 757
 758 int SSLClientSocketPool::IdleSocketCount() const {
 759   return base_.idle_socket_count();
 760 }
 761
 762 int SSLClientSocketPool::IdleSocketCountInGroup(
 763     const std::string& group_name) const {
 764   return base_.IdleSocketCountInGroup(group_name);
 765 }
 766
 767 LoadState SSLClientSocketPool::GetLoadState(
 768     const std::string& group_name, const ClientSocketHandle* handle) const {
 769   return base_.GetLoadState(group_name, handle);
 770 }
 771
 772 base::DictionaryValue* SSLClientSocketPool::GetInfoAsValue(
 773     const std::string& name,
 774     const std::string& type,
 775     bool include_nested_pools) const {
 776   base::DictionaryValue* dict = base_.GetInfoAsValue(name, type);
 777   if (include_nested_pools) {
 778     base::ListValue* list = new base::ListValue();
 779     if (transport_pool_) {
 780       list->Append(transport_pool_->GetInfoAsValue("transport_socket_pool",
 781                                                    "transport_socket_pool",
 782                                                    false));
 783     }
 784     if (socks_pool_) {
 785       list->Append(socks_pool_->GetInfoAsValue("socks_pool",
 786                                                "socks_pool",
 787                                                true));
 788     }
 789     if (http_proxy_pool_) {
 790       list->Append(http_proxy_pool_->GetInfoAsValue("http_proxy_pool",
 791                                                     "http_proxy_pool",
 792                                                     true));
 793     }
 794     dict->Set("nested_pools", list);
 795   }
 796   return dict;
 797 }
 798
 799 base::TimeDelta SSLClientSocketPool::ConnectionTimeout() const {
 800   return base_.ConnectionTimeout();
 801 }
 802
 803 ClientSocketPoolHistograms* SSLClientSocketPool::histograms() const {
 804   return base_.histograms();
 805 }
 806
 807 bool SSLClientSocketPool::IsStalled() const {
 808   return base_.IsStalled();
 809 }
 810
 811 void SSLClientSocketPool::AddHigherLayeredPool(HigherLayeredPool* higher_pool) {
 812   base_.AddHigherLayeredPool(higher_pool);
 813 }
 814
 815 void SSLClientSocketPool::RemoveHigherLayeredPool(
 816     HigherLayeredPool* higher_pool) {
 817   base_.RemoveHigherLayeredPool(higher_pool);
 818 }
 819
 820 bool SSLClientSocketPool::CloseOneIdleConnection() {
 821   if (base_.CloseOneIdleSocket())
 822     return true;
 823   return base_.CloseOneIdleConnectionInHigherLayeredPool();
 824 }
 825
 826 SSLConnectJobMessenger* SSLClientSocketPool::GetOrCreateSSLConnectJobMessenger(
 827     const std::string& cache_key) {
 828   if (!enable_ssl_connect_job_waiting_)
 829     return NULL;
 830   MessengerMap::const_iterator it = messenger_map_.find(cache_key);
 831   if (it == messenger_map_.end()) {
 832     std::pair<MessengerMap::iterator, bool> iter =
 833         messenger_map_.insert(MessengerMap::value_type(
 834             cache_key,
 835             new SSLConnectJobMessenger(
 836                 base::Bind(&SSLClientSocketPool::DeleteSSLConnectJobMessenger,
 837                            base::Unretained(this),
 838                            cache_key))));
 839     it = iter.first;
 840   }
 841   return it->second;
 842 }
 843
 844 void SSLClientSocketPool::DeleteSSLConnectJobMessenger(
 845     const std::string& cache_key) {
 846   MessengerMap::iterator it = messenger_map_.find(cache_key);
 847   CHECK(it != messenger_map_.end());
 848   delete it->second;
 849   messenger_map_.erase(it);
 850 }
 851
 852 void SSLClientSocketPool::OnSSLConfigChanged() {
 853   FlushWithError(ERR_NETWORK_CHANGED);
 854 }
 855
 856 }  // namespace net