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_) {
  50     DCHECK(!socks_proxy_params_);
  51     DCHECK(!http_proxy_params_);
  52     ignore_limits_ = direct_params_->ignore_limits();
  53   } else if (socks_proxy_params_) {
  54     DCHECK(!http_proxy_params_);
  55     ignore_limits_ = socks_proxy_params_->ignore_limits();
  56   } else {
  57     DCHECK(http_proxy_params_);
  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_) {
  66     DCHECK(!socks_proxy_params_);
  67     DCHECK(!http_proxy_params_);
  68     return DIRECT;
  69   }
  70
  71   if (socks_proxy_params_) {
  72     DCHECK(!http_proxy_params_);
  73     return SOCKS_PROXY;
  74   }
  75
  76   DCHECK(http_proxy_params_);
  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                (params->privacy_mode() == PRIVACY_MODE_ENABLED
 201                     ? "pm/" + context.ssl_session_cache_shard
 202                     : context.ssl_session_cache_shard)),
 203       io_callback_(
 204           base::Bind(&SSLConnectJob::OnIOComplete, base::Unretained(this))),
 205       messenger_(NULL),
 206       get_messenger_callback_(get_messenger_callback),
 207       weak_factory_(this) {
 208 }
 209
 210 SSLConnectJob::~SSLConnectJob() {
 211   if (ssl_socket_.get() && messenger_)
 212     messenger_->RemovePendingSocket(ssl_socket_.get());
 213 }
 214
 215 LoadState SSLConnectJob::GetLoadState() const {
 216   switch (next_state_) {
 217     case STATE_TUNNEL_CONNECT_COMPLETE:
 218       if (transport_socket_handle_->socket())
 219         return LOAD_STATE_ESTABLISHING_PROXY_TUNNEL;
 220       // else, fall through.
 221     case STATE_TRANSPORT_CONNECT:
 222     case STATE_TRANSPORT_CONNECT_COMPLETE:
 223     case STATE_SOCKS_CONNECT:
 224     case STATE_SOCKS_CONNECT_COMPLETE:
 225     case STATE_TUNNEL_CONNECT:
 226       return transport_socket_handle_->GetLoadState();
 227     case STATE_CREATE_SSL_SOCKET:
 228     case STATE_CHECK_FOR_RESUME:
 229     case STATE_SSL_CONNECT:
 230     case STATE_SSL_CONNECT_COMPLETE:
 231       return LOAD_STATE_SSL_HANDSHAKE;
 232     default:
 233       NOTREACHED();
 234       return LOAD_STATE_IDLE;
 235   }
 236 }
 237
 238 void SSLConnectJob::GetAdditionalErrorState(ClientSocketHandle* handle) {
 239   // Headers in |error_response_info_| indicate a proxy tunnel setup
 240   // problem. See DoTunnelConnectComplete.
 241   if (error_response_info_.headers.get()) {
 242     handle->set_pending_http_proxy_connection(
 243         transport_socket_handle_.release());
 244   }
 245   handle->set_ssl_error_response_info(error_response_info_);
 246   if (!connect_timing_.ssl_start.is_null())
 247     handle->set_is_ssl_error(true);
 248 }
 249
 250 void SSLConnectJob::OnIOComplete(int result) {
 251   int rv = DoLoop(result);
 252   if (rv != ERR_IO_PENDING)
 253     NotifyDelegateOfCompletion(rv);  // Deletes |this|.
 254 }
 255
 256 int SSLConnectJob::DoLoop(int result) {
 257   DCHECK_NE(next_state_, STATE_NONE);
 258
 259   int rv = result;
 260   do {
 261     State state = next_state_;
 262     next_state_ = STATE_NONE;
 263     switch (state) {
 264       case STATE_TRANSPORT_CONNECT:
 265         DCHECK_EQ(OK, rv);
 266         rv = DoTransportConnect();
 267         break;
 268       case STATE_TRANSPORT_CONNECT_COMPLETE:
 269         rv = DoTransportConnectComplete(rv);
 270         break;
 271       case STATE_SOCKS_CONNECT:
 272         DCHECK_EQ(OK, rv);
 273         rv = DoSOCKSConnect();
 274         break;
 275       case STATE_SOCKS_CONNECT_COMPLETE:
 276         rv = DoSOCKSConnectComplete(rv);
 277         break;
 278       case STATE_TUNNEL_CONNECT:
 279         DCHECK_EQ(OK, rv);
 280         rv = DoTunnelConnect();
 281         break;
 282       case STATE_TUNNEL_CONNECT_COMPLETE:
 283         rv = DoTunnelConnectComplete(rv);
 284         break;
 285       case STATE_CREATE_SSL_SOCKET:
 286         rv = DoCreateSSLSocket();
 287         break;
 288       case STATE_CHECK_FOR_RESUME:
 289         rv = DoCheckForResume();
 290         break;
 291       case STATE_SSL_CONNECT:
 292         DCHECK_EQ(OK, rv);
 293         rv = DoSSLConnect();
 294         break;
 295       case STATE_SSL_CONNECT_COMPLETE:
 296         rv = DoSSLConnectComplete(rv);
 297         break;
 298       default:
 299         NOTREACHED() << "bad state";
 300         rv = ERR_FAILED;
 301         break;
 302     }
 303   } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE);
 304
 305   return rv;
 306 }
 307
 308 int SSLConnectJob::DoTransportConnect() {
 309   DCHECK(transport_pool_);
 310
 311   next_state_ = STATE_TRANSPORT_CONNECT_COMPLETE;
 312   transport_socket_handle_.reset(new ClientSocketHandle());
 313   scoped_refptr<TransportSocketParams> direct_params =
 314       params_->GetDirectConnectionParams();
 315   return transport_socket_handle_->Init(group_name(),
 316                                         direct_params,
 317                                         priority(),
 318                                         io_callback_,
 319                                         transport_pool_,
 320                                         net_log());
 321 }
 322
 323 int SSLConnectJob::DoTransportConnectComplete(int result) {
 324   if (result == OK)
 325     next_state_ = STATE_CREATE_SSL_SOCKET;
 326
 327   return result;
 328 }
 329
 330 int SSLConnectJob::DoSOCKSConnect() {
 331   DCHECK(socks_pool_);
 332   next_state_ = STATE_SOCKS_CONNECT_COMPLETE;
 333   transport_socket_handle_.reset(new ClientSocketHandle());
 334   scoped_refptr<SOCKSSocketParams> socks_proxy_params =
 335       params_->GetSocksProxyConnectionParams();
 336   return transport_socket_handle_->Init(group_name(),
 337                                         socks_proxy_params,
 338                                         priority(),
 339                                         io_callback_,
 340                                         socks_pool_,
 341                                         net_log());
 342 }
 343
 344 int SSLConnectJob::DoSOCKSConnectComplete(int result) {
 345   if (result == OK)
 346     next_state_ = STATE_CREATE_SSL_SOCKET;
 347
 348   return result;
 349 }
 350
 351 int SSLConnectJob::DoTunnelConnect() {
 352   DCHECK(http_proxy_pool_);
 353   next_state_ = STATE_TUNNEL_CONNECT_COMPLETE;
 354
 355   transport_socket_handle_.reset(new ClientSocketHandle());
 356   scoped_refptr<HttpProxySocketParams> http_proxy_params =
 357       params_->GetHttpProxyConnectionParams();
 358   return transport_socket_handle_->Init(group_name(),
 359                                         http_proxy_params,
 360                                         priority(),
 361                                         io_callback_,
 362                                         http_proxy_pool_,
 363                                         net_log());
 364 }
 365
 366 int SSLConnectJob::DoTunnelConnectComplete(int result) {
 367   // Extract the information needed to prompt for appropriate proxy
 368   // authentication so that when ClientSocketPoolBaseHelper calls
 369   // |GetAdditionalErrorState|, we can easily set the state.
 370   if (result == ERR_SSL_CLIENT_AUTH_CERT_NEEDED) {
 371     error_response_info_ = transport_socket_handle_->ssl_error_response_info();
 372   } else if (result == ERR_PROXY_AUTH_REQUESTED ||
 373              result == ERR_HTTPS_PROXY_TUNNEL_RESPONSE) {
 374     StreamSocket* socket = transport_socket_handle_->socket();
 375     HttpProxyClientSocket* tunnel_socket =
 376         static_cast<HttpProxyClientSocket*>(socket);
 377     error_response_info_ = *tunnel_socket->GetConnectResponseInfo();
 378   }
 379   if (result < 0)
 380     return result;
 381   next_state_ = STATE_CREATE_SSL_SOCKET;
 382   return result;
 383 }
 384
 385 int SSLConnectJob::DoCreateSSLSocket() {
 386   next_state_ = STATE_CHECK_FOR_RESUME;
 387
 388   // Reset the timeout to just the time allowed for the SSL handshake.
 389   ResetTimer(base::TimeDelta::FromSeconds(kSSLHandshakeTimeoutInSeconds));
 390
 391   // If the handle has a fresh socket, get its connect start and DNS times.
 392   // This should always be the case.
 393   const LoadTimingInfo::ConnectTiming& socket_connect_timing =
 394       transport_socket_handle_->connect_timing();
 395   if (!transport_socket_handle_->is_reused() &&
 396       !socket_connect_timing.connect_start.is_null()) {
 397     // Overwriting |connect_start| serves two purposes - it adjusts timing so
 398     // |connect_start| doesn't include dns times, and it adjusts the time so
 399     // as not to include time spent waiting for an idle socket.
 400     connect_timing_.connect_start = socket_connect_timing.connect_start;
 401     connect_timing_.dns_start = socket_connect_timing.dns_start;
 402     connect_timing_.dns_end = socket_connect_timing.dns_end;
 403   }
 404
 405   ssl_socket_ = client_socket_factory_->CreateSSLClientSocket(
 406       transport_socket_handle_.Pass(),
 407       params_->host_and_port(),
 408       params_->ssl_config(),
 409       context_);
 410
 411   if (!ssl_socket_->InSessionCache())
 412     messenger_ = get_messenger_callback_.Run(ssl_socket_->GetSessionCacheKey());
 413
 414   return OK;
 415 }
 416
 417 int SSLConnectJob::DoCheckForResume() {
 418   next_state_ = STATE_SSL_CONNECT;
 419
 420   if (!messenger_)
 421     return OK;
 422
 423   if (messenger_->CanProceed(ssl_socket_.get())) {
 424     messenger_->MonitorConnectionResult(ssl_socket_.get());
 425     // The SSLConnectJob no longer needs access to the messenger after this
 426     // point.
 427     messenger_ = NULL;
 428     return OK;
 429   }
 430
 431   messenger_->AddPendingSocket(ssl_socket_.get(),
 432                                base::Bind(&SSLConnectJob::ResumeSSLConnection,
 433                                           weak_factory_.GetWeakPtr()));
 434
 435   return ERR_IO_PENDING;
 436 }
 437
 438 int SSLConnectJob::DoSSLConnect() {
 439   next_state_ = STATE_SSL_CONNECT_COMPLETE;
 440
 441   connect_timing_.ssl_start = base::TimeTicks::Now();
 442
 443   return ssl_socket_->Connect(io_callback_);
 444 }
 445
 446 int SSLConnectJob::DoSSLConnectComplete(int result) {
 447   connect_timing_.ssl_end = base::TimeTicks::Now();
 448
 449   SSLClientSocket::NextProtoStatus status =
 450       SSLClientSocket::kNextProtoUnsupported;
 451   std::string proto;
 452   // GetNextProto will fail and and trigger a NOTREACHED if we pass in a socket
 453   // that hasn't had SSL_ImportFD called on it. If we get a certificate error
 454   // here, then we know that we called SSL_ImportFD.
 455   if (result == OK || IsCertificateError(result))
 456     status = ssl_socket_->GetNextProto(&proto);
 457
 458   // If we want spdy over npn, make sure it succeeded.
 459   if (status == SSLClientSocket::kNextProtoNegotiated) {
 460     ssl_socket_->set_was_npn_negotiated(true);
 461     NextProto protocol_negotiated =
 462         SSLClientSocket::NextProtoFromString(proto);
 463     ssl_socket_->set_protocol_negotiated(protocol_negotiated);
 464     // If we negotiated a SPDY version, it must have been present in
 465     // SSLConfig::next_protos.
 466     // TODO(mbelshe): Verify this.
 467     if (protocol_negotiated >= kProtoSPDYMinimumVersion &&
 468         protocol_negotiated <= kProtoSPDYMaximumVersion) {
 469       ssl_socket_->set_was_spdy_negotiated(true);
 470     }
 471   }
 472   if (params_->want_spdy_over_npn() && !ssl_socket_->was_spdy_negotiated())
 473     return ERR_NPN_NEGOTIATION_FAILED;
 474
 475   // Spdy might be turned on by default, or it might be over npn.
 476   bool using_spdy = params_->force_spdy_over_ssl() ||
 477       params_->want_spdy_over_npn();
 478
 479   if (result == OK ||
 480       ssl_socket_->IgnoreCertError(result, params_->load_flags())) {
 481     DCHECK(!connect_timing_.ssl_start.is_null());
 482     base::TimeDelta connect_duration =
 483         connect_timing_.ssl_end - connect_timing_.ssl_start;
 484     if (using_spdy) {
 485       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SpdyConnectionLatency_2",
 486                                  connect_duration,
 487                                  base::TimeDelta::FromMilliseconds(1),
 488                                  base::TimeDelta::FromMinutes(1),
 489                                  100);
 490     }
 491 #if defined(SPDY_PROXY_AUTH_ORIGIN)
 492     bool using_data_reduction_proxy = params_->host_and_port().Equals(
 493         HostPortPair::FromURL(GURL(SPDY_PROXY_AUTH_ORIGIN)));
 494     if (using_data_reduction_proxy) {
 495       UMA_HISTOGRAM_CUSTOM_TIMES(
 496           "Net.SSL_Connection_Latency_DataReductionProxy",
 497           connect_duration,
 498           base::TimeDelta::FromMilliseconds(1),
 499           base::TimeDelta::FromMinutes(1),
 500           100);
 501     }
 502 #endif
 503
 504     UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_2",
 505                                connect_duration,
 506                                base::TimeDelta::FromMilliseconds(1),
 507                                base::TimeDelta::FromMinutes(1),
 508                                100);
 509
 510     SSLInfo ssl_info;
 511     ssl_socket_->GetSSLInfo(&ssl_info);
 512
 513     UMA_HISTOGRAM_SPARSE_SLOWLY("Net.SSL_CipherSuite",
 514                                 SSLConnectionStatusToCipherSuite(
 515                                     ssl_info.connection_status));
 516
 517     UMA_HISTOGRAM_BOOLEAN(
 518         "Net.RenegotiationExtensionSupported",
 519         (ssl_info.connection_status &
 520          SSL_CONNECTION_NO_RENEGOTIATION_EXTENSION) == 0);
 521
 522     if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_RESUME) {
 523       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Resume_Handshake",
 524                                  connect_duration,
 525                                  base::TimeDelta::FromMilliseconds(1),
 526                                  base::TimeDelta::FromMinutes(1),
 527                                  100);
 528     } else if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_FULL) {
 529       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Full_Handshake",
 530                                  connect_duration,
 531                                  base::TimeDelta::FromMilliseconds(1),
 532                                  base::TimeDelta::FromMinutes(1),
 533                                  100);
 534     }
 535
 536     const std::string& host = params_->host_and_port().host();
 537     bool is_google =
 538         host == "google.com" ||
 539         (host.size() > 11 && host.rfind(".google.com") == host.size() - 11);
 540     if (is_google) {
 541       UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Google2",
 542                                  connect_duration,
 543                                  base::TimeDelta::FromMilliseconds(1),
 544                                  base::TimeDelta::FromMinutes(1),
 545                                  100);
 546       if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_RESUME) {
 547         UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Google_"
 548                                        "Resume_Handshake",
 549                                    connect_duration,
 550                                    base::TimeDelta::FromMilliseconds(1),
 551                                    base::TimeDelta::FromMinutes(1),
 552                                    100);
 553       } else if (ssl_info.handshake_type == SSLInfo::HANDSHAKE_FULL) {
 554         UMA_HISTOGRAM_CUSTOM_TIMES("Net.SSL_Connection_Latency_Google_"
 555                                        "Full_Handshake",
 556                                    connect_duration,
 557                                    base::TimeDelta::FromMilliseconds(1),
 558                                    base::TimeDelta::FromMinutes(1),
 559                                    100);
 560       }
 561     }
 562   }
 563
 564   if (result == OK || IsCertificateError(result)) {
 565     SetSocket(ssl_socket_.PassAs<StreamSocket>());
 566   } else if (result == ERR_SSL_CLIENT_AUTH_CERT_NEEDED) {
 567     error_response_info_.cert_request_info = new SSLCertRequestInfo;
 568     ssl_socket_->GetSSLCertRequestInfo(
 569         error_response_info_.cert_request_info.get());
 570   }
 571
 572   return result;
 573 }
 574
 575 void SSLConnectJob::ResumeSSLConnection() {
 576   DCHECK_EQ(next_state_, STATE_SSL_CONNECT);
 577   messenger_ = NULL;
 578   OnIOComplete(OK);
 579 }
 580
 581 SSLConnectJob::State SSLConnectJob::GetInitialState(
 582     SSLSocketParams::ConnectionType connection_type) {
 583   switch (connection_type) {
 584     case SSLSocketParams::DIRECT:
 585       return STATE_TRANSPORT_CONNECT;
 586     case SSLSocketParams::HTTP_PROXY:
 587       return STATE_TUNNEL_CONNECT;
 588     case SSLSocketParams::SOCKS_PROXY:
 589       return STATE_SOCKS_CONNECT;
 590   }
 591   NOTREACHED();
 592   return STATE_NONE;
 593 }
 594
 595 int SSLConnectJob::ConnectInternal() {
 596   next_state_ = GetInitialState(params_->GetConnectionType());
 597   return DoLoop(OK);
 598 }
 599
 600 SSLClientSocketPool::SSLConnectJobFactory::SSLConnectJobFactory(
 601     TransportClientSocketPool* transport_pool,
 602     SOCKSClientSocketPool* socks_pool,
 603     HttpProxyClientSocketPool* http_proxy_pool,
 604     ClientSocketFactory* client_socket_factory,
 605     HostResolver* host_resolver,
 606     const SSLClientSocketContext& context,
 607     const SSLConnectJob::GetMessengerCallback& get_messenger_callback,
 608     NetLog* net_log)
 609     : transport_pool_(transport_pool),
 610       socks_pool_(socks_pool),
 611       http_proxy_pool_(http_proxy_pool),
 612       client_socket_factory_(client_socket_factory),
 613       host_resolver_(host_resolver),
 614       context_(context),
 615       get_messenger_callback_(get_messenger_callback),
 616       net_log_(net_log) {
 617   base::TimeDelta max_transport_timeout = base::TimeDelta();
 618   base::TimeDelta pool_timeout;
 619   if (transport_pool_)
 620     max_transport_timeout = transport_pool_->ConnectionTimeout();
 621   if (socks_pool_) {
 622     pool_timeout = socks_pool_->ConnectionTimeout();
 623     if (pool_timeout > max_transport_timeout)
 624       max_transport_timeout = pool_timeout;
 625   }
 626   if (http_proxy_pool_) {
 627     pool_timeout = http_proxy_pool_->ConnectionTimeout();
 628     if (pool_timeout > max_transport_timeout)
 629       max_transport_timeout = pool_timeout;
 630   }
 631   timeout_ = max_transport_timeout +
 632       base::TimeDelta::FromSeconds(kSSLHandshakeTimeoutInSeconds);
 633 }
 634
 635 SSLClientSocketPool::SSLConnectJobFactory::~SSLConnectJobFactory() {
 636 }
 637
 638 SSLClientSocketPool::SSLClientSocketPool(
 639     int max_sockets,
 640     int max_sockets_per_group,
 641     ClientSocketPoolHistograms* histograms,
 642     HostResolver* host_resolver,
 643     CertVerifier* cert_verifier,
 644     ChannelIDService* channel_id_service,
 645     TransportSecurityState* transport_security_state,
 646     CTVerifier* cert_transparency_verifier,
 647     const std::string& ssl_session_cache_shard,
 648     ClientSocketFactory* client_socket_factory,
 649     TransportClientSocketPool* transport_pool,
 650     SOCKSClientSocketPool* socks_pool,
 651     HttpProxyClientSocketPool* http_proxy_pool,
 652     SSLConfigService* ssl_config_service,
 653     bool enable_ssl_connect_job_waiting,
 654     NetLog* net_log)
 655     : transport_pool_(transport_pool),
 656       socks_pool_(socks_pool),
 657       http_proxy_pool_(http_proxy_pool),
 658       base_(this,
 659             max_sockets,
 660             max_sockets_per_group,
 661             histograms,
 662             ClientSocketPool::unused_idle_socket_timeout(),
 663             ClientSocketPool::used_idle_socket_timeout(),
 664             new SSLConnectJobFactory(
 665                 transport_pool,
 666                 socks_pool,
 667                 http_proxy_pool,
 668                 client_socket_factory,
 669                 host_resolver,
 670                 SSLClientSocketContext(cert_verifier,
 671                                        channel_id_service,
 672                                        transport_security_state,
 673                                        cert_transparency_verifier,
 674                                        ssl_session_cache_shard),
 675                 base::Bind(
 676                     &SSLClientSocketPool::GetOrCreateSSLConnectJobMessenger,
 677                     base::Unretained(this)),
 678                 net_log)),
 679       ssl_config_service_(ssl_config_service),
 680       enable_ssl_connect_job_waiting_(enable_ssl_connect_job_waiting) {
 681   if (ssl_config_service_.get())
 682     ssl_config_service_->AddObserver(this);
 683   if (transport_pool_)
 684     base_.AddLowerLayeredPool(transport_pool_);
 685   if (socks_pool_)
 686     base_.AddLowerLayeredPool(socks_pool_);
 687   if (http_proxy_pool_)
 688     base_.AddLowerLayeredPool(http_proxy_pool_);
 689 }
 690
 691 SSLClientSocketPool::~SSLClientSocketPool() {
 692   STLDeleteContainerPairSecondPointers(messenger_map_.begin(),
 693                                        messenger_map_.end());
 694   if (ssl_config_service_.get())
 695     ssl_config_service_->RemoveObserver(this);
 696 }
 697
 698 scoped_ptr<ConnectJob> SSLClientSocketPool::SSLConnectJobFactory::NewConnectJob(
 699     const std::string& group_name,
 700     const PoolBase::Request& request,
 701     ConnectJob::Delegate* delegate) const {
 702   return scoped_ptr<ConnectJob>(new SSLConnectJob(group_name,
 703                                                   request.priority(),
 704                                                   request.params(),
 705                                                   ConnectionTimeout(),
 706                                                   transport_pool_,
 707                                                   socks_pool_,
 708                                                   http_proxy_pool_,
 709                                                   client_socket_factory_,
 710                                                   host_resolver_,
 711                                                   context_,
 712                                                   get_messenger_callback_,
 713                                                   delegate,
 714                                                   net_log_));
 715 }
 716
 717 base::TimeDelta SSLClientSocketPool::SSLConnectJobFactory::ConnectionTimeout()
 718     const {
 719   return timeout_;
 720 }
 721
 722 int SSLClientSocketPool::RequestSocket(const std::string& group_name,
 723                                        const void* socket_params,
 724                                        RequestPriority priority,
 725                                        ClientSocketHandle* handle,
 726                                        const CompletionCallback& callback,
 727                                        const BoundNetLog& net_log) {
 728   const scoped_refptr<SSLSocketParams>* casted_socket_params =
 729       static_cast<const scoped_refptr<SSLSocketParams>*>(socket_params);
 730
 731   return base_.RequestSocket(group_name, *casted_socket_params, priority,
 732                              handle, callback, net_log);
 733 }
 734
 735 void SSLClientSocketPool::RequestSockets(
 736     const std::string& group_name,
 737     const void* params,
 738     int num_sockets,
 739     const BoundNetLog& net_log) {
 740   const scoped_refptr<SSLSocketParams>* casted_params =
 741       static_cast<const scoped_refptr<SSLSocketParams>*>(params);
 742
 743   base_.RequestSockets(group_name, *casted_params, num_sockets, net_log);
 744 }
 745
 746 void SSLClientSocketPool::CancelRequest(const std::string& group_name,
 747                                         ClientSocketHandle* handle) {
 748   base_.CancelRequest(group_name, handle);
 749 }
 750
 751 void SSLClientSocketPool::ReleaseSocket(const std::string& group_name,
 752                                         scoped_ptr<StreamSocket> socket,
 753                                         int id) {
 754   base_.ReleaseSocket(group_name, socket.Pass(), id);
 755 }
 756
 757 void SSLClientSocketPool::FlushWithError(int error) {
 758   base_.FlushWithError(error);
 759 }
 760
 761 void SSLClientSocketPool::CloseIdleSockets() {
 762   base_.CloseIdleSockets();
 763 }
 764
 765 int SSLClientSocketPool::IdleSocketCount() const {
 766   return base_.idle_socket_count();
 767 }
 768
 769 int SSLClientSocketPool::IdleSocketCountInGroup(
 770     const std::string& group_name) const {
 771   return base_.IdleSocketCountInGroup(group_name);
 772 }
 773
 774 LoadState SSLClientSocketPool::GetLoadState(
 775     const std::string& group_name, const ClientSocketHandle* handle) const {
 776   return base_.GetLoadState(group_name, handle);
 777 }
 778
 779 base::DictionaryValue* SSLClientSocketPool::GetInfoAsValue(
 780     const std::string& name,
 781     const std::string& type,
 782     bool include_nested_pools) const {
 783   base::DictionaryValue* dict = base_.GetInfoAsValue(name, type);
 784   if (include_nested_pools) {
 785     base::ListValue* list = new base::ListValue();
 786     if (transport_pool_) {
 787       list->Append(transport_pool_->GetInfoAsValue("transport_socket_pool",
 788                                                    "transport_socket_pool",
 789                                                    false));
 790     }
 791     if (socks_pool_) {
 792       list->Append(socks_pool_->GetInfoAsValue("socks_pool",
 793                                                "socks_pool",
 794                                                true));
 795     }
 796     if (http_proxy_pool_) {
 797       list->Append(http_proxy_pool_->GetInfoAsValue("http_proxy_pool",
 798                                                     "http_proxy_pool",
 799                                                     true));
 800     }
 801     dict->Set("nested_pools", list);
 802   }
 803   return dict;
 804 }
 805
 806 base::TimeDelta SSLClientSocketPool::ConnectionTimeout() const {
 807   return base_.ConnectionTimeout();
 808 }
 809
 810 ClientSocketPoolHistograms* SSLClientSocketPool::histograms() const {
 811   return base_.histograms();
 812 }
 813
 814 bool SSLClientSocketPool::IsStalled() const {
 815   return base_.IsStalled();
 816 }
 817
 818 void SSLClientSocketPool::AddHigherLayeredPool(HigherLayeredPool* higher_pool) {
 819   base_.AddHigherLayeredPool(higher_pool);
 820 }
 821
 822 void SSLClientSocketPool::RemoveHigherLayeredPool(
 823     HigherLayeredPool* higher_pool) {
 824   base_.RemoveHigherLayeredPool(higher_pool);
 825 }
 826
 827 bool SSLClientSocketPool::CloseOneIdleConnection() {
 828   if (base_.CloseOneIdleSocket())
 829     return true;
 830   return base_.CloseOneIdleConnectionInHigherLayeredPool();
 831 }
 832
 833 SSLConnectJobMessenger* SSLClientSocketPool::GetOrCreateSSLConnectJobMessenger(
 834     const std::string& cache_key) {
 835   if (!enable_ssl_connect_job_waiting_)
 836     return NULL;
 837   MessengerMap::const_iterator it = messenger_map_.find(cache_key);
 838   if (it == messenger_map_.end()) {
 839     std::pair<MessengerMap::iterator, bool> iter =
 840         messenger_map_.insert(MessengerMap::value_type(
 841             cache_key,
 842             new SSLConnectJobMessenger(
 843                 base::Bind(&SSLClientSocketPool::DeleteSSLConnectJobMessenger,
 844                            base::Unretained(this),
 845                            cache_key))));
 846     it = iter.first;
 847   }
 848   return it->second;
 849 }
 850
 851 void SSLClientSocketPool::DeleteSSLConnectJobMessenger(
 852     const std::string& cache_key) {
 853   MessengerMap::iterator it = messenger_map_.find(cache_key);
 854   CHECK(it != messenger_map_.end());
 855   delete it->second;
 856   messenger_map_.erase(it);
 857 }
 858
 859 void SSLClientSocketPool::OnSSLConfigChanged() {
 860   FlushWithError(ERR_NETWORK_CHANGED);
 861 }
 862
 863 }  // namespace net