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 #if !defined(OS_CHROMEOS)
  17 #include "remoting/host/native_messaging/log_message_handler.h"
  18 #endif
  19
  20 namespace base {
  21 class DictionaryValue;
  22 class Value;
  23 }  // namespace base
  24
  25 namespace remoting {
  26
  27 // Implementation of the native messaging host process.
  28 class It2MeNativeMessagingHost : public It2MeHost::Observer,
  29                                  public extensions::NativeMessageHost {
  30  public:
  31   It2MeNativeMessagingHost(
  32       scoped_ptr<ChromotingHostContext> host_context,
  33       scoped_ptr<It2MeHostFactory> host_factory);
  34   ~It2MeNativeMessagingHost() override;
  35
  36   // extensions::NativeMessageHost implementation.
  37   void OnMessage(const std::string& message) override;
  38   void Start(Client* client) override;
  39   scoped_refptr<base::SingleThreadTaskRunner> task_runner()
  40       const override;
  41
  42   // It2MeHost::Observer implementation.
  43   void OnClientAuthenticated(const std::string& client_username)
  44       override;
  45   void OnStoreAccessCode(const std::string& access_code,
  46                                  base::TimeDelta access_code_lifetime) override;
  47   void OnNatPolicyChanged(bool nat_traversal_enabled) override;
  48   void OnStateChanged(It2MeHostState state,
  49                       const std::string& error_message) override;
  50
  51   static std::string HostStateToString(It2MeHostState host_state);
  52
  53  private:
  54   // These "Process.." methods handle specific request types. The |response|
  55   // dictionary is pre-filled by ProcessMessage() with the parts of the
  56   // response already known ("id" and "type" fields).
  57   void ProcessHello(const base::DictionaryValue& message,
  58                     scoped_ptr<base::DictionaryValue> response) const;
  59   void ProcessConnect(const base::DictionaryValue& message,
  60                       scoped_ptr<base::DictionaryValue> response);
  61   void ProcessDisconnect(const base::DictionaryValue& message,
  62                          scoped_ptr<base::DictionaryValue> response);
  63   void SendErrorAndExit(scoped_ptr<base::DictionaryValue> response,
  64                         const std::string& description) const;
  65   void SendMessageToClient(scoped_ptr<base::Value> message) const;
  66
  67   Client* client_;
  68   scoped_ptr<ChromotingHostContext> host_context_;
  69   scoped_ptr<It2MeHostFactory> factory_;
  70   scoped_refptr<It2MeHost> it2me_host_;
  71
  72 #if !defined(OS_CHROMEOS)
  73   // Don't install a log message handler on ChromeOS because we run in the
  74   // browser process and don't want to intercept all its log messages.
  75   scoped_ptr<LogMessageHandler> log_message_handler_;
  76 #endif
  77
  78   // Cached, read-only copies of |it2me_host_| session state.
  79   It2MeHostState state_;
  80   std::string access_code_;
  81   base::TimeDelta access_code_lifetime_;
  82   std::string client_username_;
  83
  84   // IT2Me Talk server configuration used by |it2me_host_| to connect.
  85   XmppSignalStrategy::XmppServerConfig xmpp_server_config_;
  86
  87   // Chromoting Bot JID used by |it2me_host_| to register the host.
  88   std::string directory_bot_jid_;
  89
  90   base::WeakPtr<It2MeNativeMessagingHost> weak_ptr_;
  91   base::WeakPtrFactory<It2MeNativeMessagingHost> weak_factory_;
  92
  93   DISALLOW_COPY_AND_ASSIGN(It2MeNativeMessagingHost);
  94 };
  95
  96 }  // namespace remoting
  97
  98 #endif  // REMOTING_HOST_IT2ME_IT2ME_NATIVE_MESSAGING_HOST_H_