components/proximity_auth/webui/proximity_auth_webui_handler.h

   1 // Copyright 2015 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 COMPONENTS_PROXIMITY_AUTH_WEBUI_PROXIMITY_AUTH_WEBUI_HANDLER_H_
   6 #define COMPONENTS_PROXIMITY_AUTH_WEBUI_PROXIMITY_AUTH_WEBUI_HANDLER_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "base/values.h"
  10 #include "components/proximity_auth/cryptauth/cryptauth_client.h"
  11 #include "components/proximity_auth/cryptauth/cryptauth_device_manager.h"
  12 #include "components/proximity_auth/cryptauth/cryptauth_enrollment_manager.h"
  13 #include "components/proximity_auth/cryptauth/cryptauth_gcm_manager.h"
  14 #include "components/proximity_auth/logging/log_buffer.h"
  15 #include "components/proximity_auth/webui/proximity_auth_ui_delegate.h"
  16 #include "content/public/browser/web_ui_message_handler.h"
  17
  18 namespace base {
  19 class ListValue;
  20 }
  21
  22 namespace proximity_auth {
  23
  24 // Handles messages from the chrome://proximity-auth page.
  25 class ProximityAuthWebUIHandler : public content::WebUIMessageHandler,
  26                                   public LogBuffer::Observer,
  27                                   public CryptAuthEnrollmentManager::Observer,
  28                                   public CryptAuthDeviceManager::Observer {
  29  public:
  30   // |delegate| is not owned and must outlive this instance.
  31   explicit ProximityAuthWebUIHandler(ProximityAuthUIDelegate* delegate);
  32   ~ProximityAuthWebUIHandler() override;
  33
  34   // content::WebUIMessageHandler:
  35   void RegisterMessages() override;
  36
  37  private:
  38   // LogBuffer::Observer:
  39   void OnLogMessageAdded(const LogBuffer::LogMessage& log_message) override;
  40   void OnLogBufferCleared() override;
  41
  42   // CryptAuthEnrollmentManager::Observer:
  43   void OnEnrollmentStarted() override;
  44   void OnEnrollmentFinished(bool success) override;
  45
  46   // CryptAuthDeviceManager::Observer:
  47   void OnSyncStarted() override;
  48   void OnSyncFinished(
  49       CryptAuthDeviceManager::SyncResult sync_result,
  50       CryptAuthDeviceManager::DeviceChangeResult device_change_result) override;
  51
  52   // Message handler callbacks.
  53   void GetLogMessages(const base::ListValue* args);
  54   void ClearLogBuffer(const base::ListValue* args);
  55   void FindEligibleUnlockDevices(const base::ListValue* args);
  56   void GetSyncStates(const base::ListValue* args);
  57   void ForceEnrollment(const base::ListValue* args);
  58   void ForceDeviceSync(const base::ListValue* args);
  59
  60   // Initializes CryptAuth managers, used for development purposes.
  61   void InitGCMManager();
  62   void InitEnrollmentManager();
  63   void InitDeviceManager();
  64
  65   // Called when a CryptAuth request fails.
  66   void OnCryptAuthClientError(const std::string& error_message);
  67
  68   // Called when the findEligibleUnlockDevices request succeeds.
  69   void OnFoundEligibleUnlockDevices(
  70       const cryptauth::FindEligibleUnlockDevicesResponse& response);
  71
  72   // Returns the current enrollment state that can be used as a JSON object.
  73   scoped_ptr<base::DictionaryValue> GetEnrollmentStateDictionary();
  74
  75   // Returns the current device sync state that can be used as a JSON object.
  76   scoped_ptr<base::DictionaryValue> GetDeviceSyncStateDictionary();
  77
  78   // The delegate used to fetch dependencies. Must outlive this instance.
  79   ProximityAuthUIDelegate* delegate_;
  80
  81   // Creates CryptAuth client instances to make API calls.
  82   scoped_ptr<CryptAuthClientFactory> cryptauth_client_factory_;
  83
  84   // We only support one concurrent API call.
  85   scoped_ptr<CryptAuthClient> cryptauth_client_;
  86
  87   // TODO(tengs): These members are temporarily used for development.
  88   scoped_ptr<PrefService> pref_service;
  89   scoped_ptr<CryptAuthGCMManager> gcm_manager_;
  90   scoped_ptr<CryptAuthEnrollmentManager> enrollment_manager_;
  91   scoped_ptr<CryptAuthDeviceManager> device_manager_;
  92
  93   base::WeakPtrFactory<ProximityAuthWebUIHandler> weak_ptr_factory_;
  94
  95   DISALLOW_COPY_AND_ASSIGN(ProximityAuthWebUIHandler);
  96 };
  97
  98 }  // namespace proximity_auth
  99
 100 #endif  // COMPONENTS_PROXIMITY_AUTH_WEBUI_PROXIMITY_AUTH_WEBUI_HANDLER_H_