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| 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 "remoting/host/host_port_allocator.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/stl_util.h" | |
| 9 #include "base/strings/string_number_conversions.h" | |
| 10 #include "googleurl/src/gurl.h" | |
| 11 #include "net/http/http_status_code.h" | |
| 12 #include "net/url_request/url_fetcher.h" | |
| 13 #include "net/url_request/url_fetcher_delegate.h" | |
| 14 #include "net/url_request/url_request_context_getter.h" | |
| 15 #include "remoting/host/network_settings.h" | |
| 16 #include "remoting/jingle_glue/chromium_socket_factory.h" | |
| 17 | |
| 18 namespace remoting { | |
| 19 | |
| 20 namespace { | |
| 21 | |
| 22 class HostPortAllocatorSession | |
| 23 : public cricket::HttpPortAllocatorSessionBase, | |
| 24 public net::URLFetcherDelegate { | |
| 25 public: | |
| 26 HostPortAllocatorSession( | |
| 27 cricket::HttpPortAllocatorBase* allocator, | |
| 28 const std::string& content_name, | |
| 29 int component, | |
| 30 const std::string& ice_username_fragment, | |
| 31 const std::string& ice_password, | |
| 32 const std::vector<talk_base::SocketAddress>& stun_hosts, | |
| 33 const std::vector<std::string>& relay_hosts, | |
| 34 const std::string& relay, | |
| 35 const scoped_refptr<net::URLRequestContextGetter>& url_context); | |
| 36 virtual ~HostPortAllocatorSession(); | |
| 37 | |
| 38 // cricket::HttpPortAllocatorBase overrides. | |
| 39 virtual void ConfigReady(cricket::PortConfiguration* config) OVERRIDE; | |
| 40 virtual void SendSessionRequest(const std::string& host, int port) OVERRIDE; | |
| 41 | |
| 42 // net::URLFetcherDelegate interface. | |
| 43 virtual void OnURLFetchComplete(const net::URLFetcher* url_fetcher) OVERRIDE; | |
| 44 | |
| 45 private: | |
| 46 scoped_refptr<net::URLRequestContextGetter> url_context_; | |
| 47 std::set<const net::URLFetcher*> url_fetchers_; | |
| 48 | |
| 49 DISALLOW_COPY_AND_ASSIGN(HostPortAllocatorSession); | |
| 50 }; | |
| 51 | |
| 52 HostPortAllocatorSession::HostPortAllocatorSession( | |
| 53 cricket::HttpPortAllocatorBase* allocator, | |
| 54 const std::string& content_name, | |
| 55 int component, | |
| 56 const std::string& ice_username_fragment, | |
| 57 const std::string& ice_password, | |
| 58 const std::vector<talk_base::SocketAddress>& stun_hosts, | |
| 59 const std::vector<std::string>& relay_hosts, | |
| 60 const std::string& relay, | |
| 61 const scoped_refptr<net::URLRequestContextGetter>& url_context) | |
| 62 : HttpPortAllocatorSessionBase(allocator, | |
| 63 content_name, | |
| 64 component, | |
| 65 ice_username_fragment, | |
| 66 ice_password, | |
| 67 stun_hosts, | |
| 68 relay_hosts, | |
| 69 relay, | |
| 70 std::string()), | |
| 71 url_context_(url_context) {} | |
| 72 | |
| 73 HostPortAllocatorSession::~HostPortAllocatorSession() { | |
| 74 STLDeleteElements(&url_fetchers_); | |
| 75 } | |
| 76 | |
| 77 void HostPortAllocatorSession::ConfigReady(cricket::PortConfiguration* config) { | |
| 78 // Filter out non-UDP relay ports, so that we don't try using TCP. | |
| 79 for (cricket::PortConfiguration::RelayList::iterator relay = | |
| 80 config->relays.begin(); relay != config->relays.end(); ++relay) { | |
| 81 cricket::PortList filtered_ports; | |
| 82 for (cricket::PortList::iterator port = | |
| 83 relay->ports.begin(); port != relay->ports.end(); ++port) { | |
| 84 if (port->proto == cricket::PROTO_UDP) { | |
| 85 filtered_ports.push_back(*port); | |
| 86 } | |
| 87 } | |
| 88 relay->ports = filtered_ports; | |
| 89 } | |
| 90 cricket::BasicPortAllocatorSession::ConfigReady(config); | |
| 91 } | |
| 92 | |
| 93 void HostPortAllocatorSession::SendSessionRequest(const std::string& host, | |
| 94 int port) { | |
| 95 GURL url("https://" + host + ":" + base::IntToString(port) + | |
| 96 GetSessionRequestUrl() + "&sn=1"); | |
| 97 scoped_ptr<net::URLFetcher> url_fetcher( | |
| 98 net::URLFetcher::Create(url, net::URLFetcher::GET, this)); | |
| 99 url_fetcher->SetRequestContext(url_context_.get()); | |
| 100 url_fetcher->AddExtraRequestHeader("X-Talk-Google-Relay-Auth: " + | |
| 101 relay_token()); | |
| 102 url_fetcher->AddExtraRequestHeader("X-Google-Relay-Auth: " + relay_token()); | |
| 103 url_fetcher->AddExtraRequestHeader("X-Stream-Type: chromoting"); | |
| 104 url_fetcher->Start(); | |
| 105 url_fetchers_.insert(url_fetcher.release()); | |
| 106 } | |
| 107 | |
| 108 void HostPortAllocatorSession::OnURLFetchComplete( | |
| 109 const net::URLFetcher* source) { | |
| 110 int response_code = source->GetResponseCode(); | |
| 111 std::string response; | |
| 112 source->GetResponseAsString(&response); | |
| 113 | |
| 114 url_fetchers_.erase(source); | |
| 115 delete source; | |
| 116 | |
| 117 if (response_code != net::HTTP_OK) { | |
| 118 LOG(WARNING) << "Received error when allocating relay session: " | |
| 119 << response_code; | |
| 120 TryCreateRelaySession(); | |
| 121 return; | |
| 122 } | |
| 123 | |
| 124 ReceiveSessionResponse(response); | |
| 125 } | |
| 126 | |
| 127 } // namespace | |
| 128 | |
| 129 // static | |
| 130 scoped_ptr<HostPortAllocator> HostPortAllocator::Create( | |
| 131 const scoped_refptr<net::URLRequestContextGetter>& url_context, | |
| 132 const NetworkSettings& network_settings) { | |
| 133 scoped_ptr<talk_base::NetworkManager> network_manager( | |
| 134 new talk_base::BasicNetworkManager()); | |
| 135 scoped_ptr<talk_base::PacketSocketFactory> socket_factory( | |
| 136 new remoting::ChromiumPacketSocketFactory()); | |
| 137 scoped_ptr<HostPortAllocator> result( | |
| 138 new HostPortAllocator(url_context, network_manager.Pass(), | |
| 139 socket_factory.Pass())); | |
| 140 | |
| 141 // We always use PseudoTcp to provide a reliable channel. It | |
| 142 // provides poor performance when combined with TCP-based transport, | |
| 143 // so we have to disable TCP ports. | |
| 144 // ENABLE_SHARED_UFRAG flag is | |
| 145 // specified so that the same username fragment is shared between | |
| 146 // all candidates for this channel. | |
| 147 int flags = cricket::PORTALLOCATOR_DISABLE_TCP | | |
| 148 cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG; | |
| 149 if (network_settings.nat_traversal_mode != | |
| 150 NetworkSettings::NAT_TRAVERSAL_ENABLED) { | |
| 151 flags |= cricket::PORTALLOCATOR_DISABLE_STUN | | |
| 152 cricket::PORTALLOCATOR_DISABLE_RELAY; | |
| 153 } | |
| 154 result->set_flags(flags); | |
| 155 result->SetPortRange(network_settings.min_port, | |
| 156 network_settings.max_port); | |
| 157 | |
| 158 return result.Pass(); | |
| 159 } | |
| 160 | |
| 161 HostPortAllocator::HostPortAllocator( | |
| 162 const scoped_refptr<net::URLRequestContextGetter>& url_context, | |
| 163 scoped_ptr<talk_base::NetworkManager> network_manager, | |
| 164 scoped_ptr<talk_base::PacketSocketFactory> socket_factory) | |
| 165 : HttpPortAllocatorBase(network_manager.get(), | |
| 166 socket_factory.get(), | |
| 167 std::string()), | |
| 168 url_context_(url_context), | |
| 169 network_manager_(network_manager.Pass()), | |
| 170 socket_factory_(socket_factory.Pass()) {} | |
| 171 | |
| 172 HostPortAllocator::~HostPortAllocator() { | |
| 173 } | |
| 174 | |
| 175 cricket::PortAllocatorSession* HostPortAllocator::CreateSessionInternal( | |
| 176 const std::string& content_name, | |
| 177 int component, | |
| 178 const std::string& ice_username_fragment, | |
| 179 const std::string& ice_password) { | |
| 180 return new HostPortAllocatorSession( | |
| 181 this, content_name, component, ice_username_fragment, ice_password, | |
| 182 stun_hosts(), relay_hosts(), relay_token(), url_context_); | |
| 183 } | |
| 184 | |
| 185 } // namespace remoting | |
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Chromium Code Reviews
Issue 17101034:
Add static Create method to LibjingleTransportFactory (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master