remoting/jingle_glue/xmpp_signal_strategy.h

   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 "third_party/libjingle/source/talk/base/sigslot.h"
  21 #include "third_party/libjingle/source/talk/xmpp/xmppclient.h"
  22
  23 namespace remoting {
  24
  25 class JingleThread;
  26
  27 class XmppSignalStrategy : public base::NonThreadSafe,
  28                            public SignalStrategy,
  29                            public buzz::XmppStanzaHandler,
  30                            public sigslot::has_slots<> {
  31  public:
  32   XmppSignalStrategy(JingleThread* thread,
  33                      const std::string& username,
  34                      const std::string& auth_token,
  35                      const std::string& auth_token_service);
  36   virtual ~XmppSignalStrategy();
  37
  38   // SignalStrategy interface.
  39   virtual void Connect() OVERRIDE;
  40   virtual void Disconnect() OVERRIDE;
  41   virtual State GetState() const OVERRIDE;
  42   virtual std::string GetLocalJid() const OVERRIDE;
  43   virtual void AddListener(Listener* listener) OVERRIDE;
  44   virtual void RemoveListener(Listener* listener) OVERRIDE;
  45   virtual bool SendStanza(scoped_ptr<buzz::XmlElement> stanza) OVERRIDE;
  46   virtual std::string GetNextId() OVERRIDE;
  47
  48   // buzz::XmppStanzaHandler interface.
  49   virtual bool HandleStanza(const buzz::XmlElement* stanza) OVERRIDE;
  50
  51   // This method is used to update the auth info (for example when the OAuth
  52   // access token is renewed). It is OK to call this even when we are in the
  53   // CONNECTED state. It will be used on the next Connect() call.
  54   void SetAuthInfo(const std::string& username,
  55                    const std::string& auth_token,
  56                    const std::string& auth_token_service);
  57
  58   // Use this method to override the default resource name used (optional).
  59   // This will be used on the next Connect() call.
  60   void SetResourceName(const std::string& resource_name);
  61
  62  private:
  63   static buzz::PreXmppAuth* CreatePreXmppAuth(
  64       const buzz::XmppClientSettings& settings);
  65
  66   void OnConnectionStateChanged(buzz::XmppEngine::State state);
  67   void SetState(State new_state);
  68
  69   JingleThread* thread_;
  70
  71   std::string username_;
  72   std::string auth_token_;
  73   std::string auth_token_service_;
  74   std::string resource_name_;
  75   buzz::XmppClient* xmpp_client_;
  76
  77   State state_;
  78
  79   ObserverList<Listener> listeners_;
  80
  81   DISALLOW_COPY_AND_ASSIGN(XmppSignalStrategy);
  82 };
  83
  84 }  // namespace remoting
  85
  86 #endif  // REMOTING_JINGLE_GLUE_XMPP_SIGNAL_STRATEGY_H_