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