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 // The XmppSignalStrategy encapsulates all the logic to perform the signaling 6 // STUN/ICE for jingle via a direct XMPP connection. 7 // 8 // This class is not threadsafe. 9 10 #ifndef REMOTING_JINGLE_GLUE_XMPP_SIGNAL_STRATEGY_H_ 11 #define REMOTING_JINGLE_GLUE_XMPP_SIGNAL_STRATEGY_H_ 12 13 #include "remoting/jingle_glue/signal_strategy.h" 14 15 #include <vector> 16 17 #include "base/compiler_specific.h" 18 #include "base/observer_list.h" 19 #include "base/threading/non_thread_safe.h" 20 #include "base/timer/timer.h" 21 #include "third_party/libjingle/source/talk/base/sigslot.h" 22 #include "third_party/libjingle/source/talk/xmpp/xmppclient.h" 23 24 namespace net { 25 class URLRequestContextGetter; 26 } // namespace net 27 28 namespace talk_base { 29 class TaskRunner; 30 } // namespace talk_base 31 32 namespace remoting { 33 34 class JingleThread; 35 36 class XmppSignalStrategy : public base::NonThreadSafe, 37 public SignalStrategy, 38 public buzz::XmppStanzaHandler, 39 public sigslot::has_slots<> { 40 public: 41 // XMPP Server configuration for XmppSignalStrategy. 42 struct XmppServerConfig { 43 std::string host; 44 int port; 45 bool use_tls; 46 }; 47 48 XmppSignalStrategy( 49 scoped_refptr<net::URLRequestContextGetter> request_context_getter, 50 const std::string& username, 51 const std::string& auth_token, 52 const std::string& auth_token_service, 53 const XmppServerConfig& xmpp_server_config); 54 virtual ~XmppSignalStrategy(); 55 56 // SignalStrategy interface. 57 virtual void Connect() OVERRIDE; 58 virtual void Disconnect() OVERRIDE; 59 virtual State GetState() const OVERRIDE; 60 virtual Error GetError() const OVERRIDE; 61 virtual std::string GetLocalJid() const OVERRIDE; 62 virtual void AddListener(Listener* listener) OVERRIDE; 63 virtual void RemoveListener(Listener* listener) OVERRIDE; 64 virtual bool SendStanza(scoped_ptr<buzz::XmlElement> stanza) OVERRIDE; 65 virtual std::string GetNextId() OVERRIDE; 66 67 // buzz::XmppStanzaHandler interface. 68 virtual bool HandleStanza(const buzz::XmlElement* stanza) OVERRIDE; 69 70 // This method is used to update the auth info (for example when the OAuth 71 // access token is renewed). It is OK to call this even when we are in the 72 // CONNECTED state. It will be used on the next Connect() call. 73 void SetAuthInfo(const std::string& username, 74 const std::string& auth_token, 75 const std::string& auth_token_service); 76 77 // Use this method to override the default resource name used (optional). 78 // This will be used on the next Connect() call. 79 void SetResourceName(const std::string& resource_name); 80 81 private: 82 static buzz::PreXmppAuth* CreatePreXmppAuth( 83 const buzz::XmppClientSettings& settings); 84 85 void OnConnectionStateChanged(buzz::XmppEngine::State state); 86 void SetState(State new_state); 87 88 void SendKeepAlive(); 89 90 scoped_refptr<net::URLRequestContextGetter> request_context_getter_; 91 std::string username_; 92 std::string auth_token_; 93 std::string auth_token_service_; 94 std::string resource_name_; 95 scoped_ptr<talk_base::TaskRunner> task_runner_; 96 buzz::XmppClient* xmpp_client_; 97 XmppServerConfig xmpp_server_config_; 98 99 State state_; 100 Error error_; 101 102 ObserverList<Listener, true> listeners_; 103 104 base::RepeatingTimer<XmppSignalStrategy> keep_alive_timer_; 105 106 DISALLOW_COPY_AND_ASSIGN(XmppSignalStrategy); 107 }; 108 109 } // namespace remoting 110 111 #endif // REMOTING_JINGLE_GLUE_XMPP_SIGNAL_STRATEGY_H_ 112
