net/http/http_network_layer.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/http/http_network_layer.h"
   6
   7 #include "base/logging.h"
   8 #include "base/power_monitor/power_monitor.h"
   9 #include "base/strings/string_number_conversions.h"
  10 #include "base/strings/string_split.h"
  11 #include "base/strings/string_util.h"
  12 #include "net/http/http_network_session.h"
  13 #include "net/http/http_network_transaction.h"
  14 #include "net/http/http_server_properties_impl.h"
  15 #include "net/http/http_stream_factory_impl_job.h"
  16 #include "net/spdy/spdy_framer.h"
  17 #include "net/spdy/spdy_session.h"
  18 #include "net/spdy/spdy_session_pool.h"
  19
  20 namespace net {
  21
  22 //-----------------------------------------------------------------------------
  23 HttpNetworkLayer::HttpNetworkLayer(HttpNetworkSession* session)
  24     : session_(session),
  25       suspended_(false) {
  26   DCHECK(session_.get());
  27 #if defined(OS_WIN)
  28  base::PowerMonitor* power_monitor = base::PowerMonitor::Get();
  29  if (power_monitor)
  30    power_monitor->AddObserver(this);
  31 #endif
  32 }
  33
  34 HttpNetworkLayer::~HttpNetworkLayer() {
  35 #if defined(OS_WIN)
  36   base::PowerMonitor* power_monitor = base::PowerMonitor::Get();
  37   if (power_monitor)
  38     power_monitor->RemoveObserver(this);
  39 #endif
  40 }
  41
  42 //-----------------------------------------------------------------------------
  43
  44 // static
  45 HttpTransactionFactory* HttpNetworkLayer::CreateFactory(
  46     HttpNetworkSession* session) {
  47   DCHECK(session);
  48
  49   return new HttpNetworkLayer(session);
  50 }
  51
  52 // static
  53 void HttpNetworkLayer::ForceAlternateProtocol() {
  54   PortAlternateProtocolPair pair;
  55   pair.port = 443;
  56   pair.protocol = NPN_SPDY_3;
  57   HttpServerPropertiesImpl::ForceAlternateProtocol(pair);
  58 }
  59
  60 //-----------------------------------------------------------------------------
  61
  62 int HttpNetworkLayer::CreateTransaction(RequestPriority priority,
  63                                         scoped_ptr<HttpTransaction>* trans) {
  64   if (suspended_)
  65     return ERR_NETWORK_IO_SUSPENDED;
  66
  67   trans->reset(new HttpNetworkTransaction(priority, GetSession()));
  68   return OK;
  69 }
  70
  71 HttpCache* HttpNetworkLayer::GetCache() {
  72   return NULL;
  73 }
  74
  75 HttpNetworkSession* HttpNetworkLayer::GetSession() { return session_.get(); }
  76
  77 void HttpNetworkLayer::OnSuspend() {
  78   suspended_ = true;
  79
  80   if (session_.get())
  81     session_->CloseIdleConnections();
  82 }
  83
  84 void HttpNetworkLayer::OnResume() {
  85   suspended_ = false;
  86 }
  87
  88 }  // namespace net