remoting/host/it2me/it2me_native_messaging_host.h

   1 // Copyright 2013 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 #ifndef REMOTING_HOST_IT2ME_IT2ME_NATIVE_MESSAGING_HOST_H_
   6 #define REMOTING_HOST_IT2ME_IT2ME_NATIVE_MESSAGING_HOST_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "extensions/browser/api/messaging/native_message_host.h"
  12 #include "remoting/base/auto_thread_task_runner.h"
  13 #include "remoting/host/chromoting_host_context.h"
  14 #include "remoting/host/it2me/it2me_host.h"
  15
  16 namespace base {
  17 class DictionaryValue;
  18 class Value;
  19 }  // namespace base
  20
  21 namespace remoting {
  22
  23 // Implementation of the native messaging host process.
  24 class It2MeNativeMessagingHost : public It2MeHost::Observer,
  25                                  public extensions::NativeMessageHost {
  26  public:
  27   It2MeNativeMessagingHost(
  28       scoped_ptr<ChromotingHostContext> host_context,
  29       scoped_ptr<It2MeHostFactory> host_factory);
  30   ~It2MeNativeMessagingHost() override;
  31
  32   // extensions::NativeMessageHost implementation.
  33   void OnMessage(const std::string& message) override;
  34   void Start(Client* client) override;
  35   scoped_refptr<base::SingleThreadTaskRunner> task_runner()
  36       const override;
  37
  38   // It2MeHost::Observer implementation.
  39   void OnClientAuthenticated(const std::string& client_username)
  40       override;
  41   void OnStoreAccessCode(const std::string& access_code,
  42                                  base::TimeDelta access_code_lifetime) override;
  43   void OnNatPolicyChanged(bool nat_traversal_enabled) override;
  44   void OnStateChanged(It2MeHostState state,
  45                       const std::string& error_message) override;
  46
  47   static std::string HostStateToString(It2MeHostState host_state);
  48
  49  private:
  50   // These "Process.." methods handle specific request types. The |response|
  51   // dictionary is pre-filled by ProcessMessage() with the parts of the
  52   // response already known ("id" and "type" fields).
  53   void ProcessHello(const base::DictionaryValue& message,
  54                     scoped_ptr<base::DictionaryValue> response) const;
  55   void ProcessConnect(const base::DictionaryValue& message,
  56                       scoped_ptr<base::DictionaryValue> response);
  57   void ProcessDisconnect(const base::DictionaryValue& message,
  58                          scoped_ptr<base::DictionaryValue> response);
  59   void SendErrorAndExit(scoped_ptr<base::DictionaryValue> response,
  60                         const std::string& description) const;
  61   void SendMessageToClient(scoped_ptr<base::DictionaryValue> message) const;
  62
  63   Client* client_;
  64   scoped_ptr<ChromotingHostContext> host_context_;
  65   scoped_ptr<It2MeHostFactory> factory_;
  66   scoped_refptr<It2MeHost> it2me_host_;
  67
  68   // Cached, read-only copies of |it2me_host_| session state.
  69   It2MeHostState state_;
  70   std::string access_code_;
  71   base::TimeDelta access_code_lifetime_;
  72   std::string client_username_;
  73
  74   // IT2Me Talk server configuration used by |it2me_host_| to connect.
  75   XmppSignalStrategy::XmppServerConfig xmpp_server_config_;
  76
  77   // Chromoting Bot JID used by |it2me_host_| to register the host.
  78   std::string directory_bot_jid_;
  79
  80   base::WeakPtr<It2MeNativeMessagingHost> weak_ptr_;
  81   base::WeakPtrFactory<It2MeNativeMessagingHost> weak_factory_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(It2MeNativeMessagingHost);
  84 };
  85
  86 }  // namespace remoting
  87
  88 #endif  // REMOTING_HOST_IT2ME_IT2ME_NATIVE_MESSAGING_HOST_H_