remoting/host/setup/host_starter.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 #ifndef REMOTING_HOST_HOST_STARTER
   6 #define REMOTING_HOST_HOST_STARTER
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "google_apis/gaia/gaia_oauth_client.h"
  14 #include "remoting/base/rsa_key_pair.h"
  15 #include "remoting/host/setup/daemon_controller.h"
  16 #include "remoting/host/setup/service_client.h"
  17
  18 namespace net {
  19 class URLRequestContextGetter;
  20 }
  21
  22 namespace remoting {
  23
  24 // A helper class that registers and starts a host.
  25 class HostStarter : public gaia::GaiaOAuthClient::Delegate,
  26                     public remoting::ServiceClient::Delegate {
  27  public:
  28   enum Result {
  29     START_COMPLETE,
  30     NETWORK_ERROR,
  31     OAUTH_ERROR,
  32     START_ERROR,
  33   };
  34
  35   typedef base::Callback<void(Result)> CompletionCallback;
  36
  37   ~HostStarter() override;
  38
  39   // Creates a HostStarter.
  40   static scoped_ptr<HostStarter> Create(
  41       const std::string& chromoting_hosts_url,
  42       net::URLRequestContextGetter* url_request_context_getter);
  43
  44   // Registers a new host with the Chromoting service, and starts it.
  45   // |auth_code| must be a valid OAuth2 authorization code, typically acquired
  46   // from a browser. This method uses that code to get an OAuth2 refresh token.
  47   void StartHost(const std::string& host_name,
  48                  const std::string& host_pin,
  49                  bool consent_to_data_collection,
  50                  const std::string& auth_code,
  51                  const std::string& redirect_url,
  52                  CompletionCallback on_done);
  53
  54   // gaia::GaiaOAuthClient::Delegate
  55   void OnGetTokensResponse(const std::string& refresh_token,
  56                            const std::string& access_token,
  57                            int expires_in_seconds) override;
  58   void OnRefreshTokenResponse(const std::string& access_token,
  59                               int expires_in_seconds) override;
  60   void OnGetUserEmailResponse(const std::string& user_email) override;
  61
  62   // remoting::ServiceClient::Delegate
  63   void OnHostRegistered(const std::string& authorization_code) override;
  64   void OnHostUnregistered() override;
  65
  66   // TODO(sergeyu): Following methods are members of all three delegate
  67   // interfaces implemented in this class. Fix ServiceClient and
  68   // GaiaUserEmailFetcher so that Delegate interfaces do not overlap (ideally
  69   // they should be changed to use Callback<>).
  70   void OnOAuthError() override;
  71   void OnNetworkError(int response_code) override;
  72
  73  private:
  74   HostStarter(scoped_ptr<gaia::GaiaOAuthClient> oauth_client,
  75               scoped_ptr<remoting::ServiceClient> service_client,
  76               scoped_refptr<remoting::DaemonController> daemon_controller);
  77
  78   void StartHostProcess();
  79
  80   void OnHostStarted(DaemonController::AsyncResult result);
  81
  82   scoped_ptr<gaia::GaiaOAuthClient> oauth_client_;
  83   scoped_ptr<remoting::ServiceClient> service_client_;
  84   scoped_refptr<remoting::DaemonController> daemon_controller_;
  85   gaia::OAuthClientInfo oauth_client_info_;
  86   std::string host_name_;
  87   std::string host_pin_;
  88   bool consent_to_data_collection_;
  89   CompletionCallback on_done_;
  90   scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
  91   std::string refresh_token_;
  92   std::string access_token_;
  93   std::string host_owner_;
  94   std::string xmpp_login_;
  95   scoped_refptr<remoting::RsaKeyPair> key_pair_;
  96   std::string host_id_;
  97
  98   // True if the host was not started and unregistration was requested. If this
  99   // is set and a network/OAuth error occurs during unregistration, this will
 100   // be logged, but the error will still be reported as START_ERROR.
 101   bool unregistering_host_;
 102
 103   base::WeakPtr<HostStarter> weak_ptr_;
 104   base::WeakPtrFactory<HostStarter> weak_ptr_factory_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(HostStarter);
 107 };
 108
 109 }  // namespace remoting
 110
 111 #endif  // REMOTING_HOST_HOST_STARTER