src/chrome/browser/chromeos/ownership/owner_settings_service.h

   1 // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_H_
   6 #define CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_H_
   7
   8 #include <vector>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/macros.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/threading/thread_checker.h"
  14 #include "chrome/browser/chromeos/settings/device_settings_service.h"
  15 #include "chrome/browser/chromeos/settings/owner_key_util.h"
  16 #include "chromeos/dbus/session_manager_client.h"
  17 #include "chromeos/tpm_token_loader.h"
  18 #include "components/keyed_service/core/keyed_service.h"
  19 #include "content/public/browser/notification_observer.h"
  20 #include "content/public/browser/notification_registrar.h"
  21
  22 class Profile;
  23
  24 namespace chromeos {
  25
  26 // This class reloads owner key from profile NSS slots.
  27 //
  28 // TODO (ygorshenin@): move write path for device settings here
  29 // (crbug.com/230018).
  30 class OwnerSettingsService : public DeviceSettingsService::PrivateKeyDelegate,
  31                              public KeyedService,
  32                              public content::NotificationObserver,
  33                              public TPMTokenLoader::Observer,
  34                              public SessionManagerClient::Observer {
  35  public:
  36   virtual ~OwnerSettingsService();
  37
  38   base::WeakPtr<OwnerSettingsService> as_weak_ptr() {
  39     return weak_factory_.GetWeakPtr();
  40   }
  41
  42   // DeviceSettingsService::PrivateKeyDelegate implementation:
  43   virtual bool IsOwner() OVERRIDE;
  44   virtual void IsOwnerAsync(const IsOwnerCallback& callback) OVERRIDE;
  45   virtual bool AssembleAndSignPolicyAsync(
  46       scoped_ptr<enterprise_management::PolicyData> policy,
  47       const AssembleAndSignPolicyCallback& callback) OVERRIDE;
  48
  49   // NotificationObserver implementation:
  50   virtual void Observe(int type,
  51                        const content::NotificationSource& source,
  52                        const content::NotificationDetails& details) OVERRIDE;
  53
  54   // TPMTokenLoader::Observer:
  55   virtual void OnTPMTokenReady() OVERRIDE;
  56
  57   // SessionManagerClient::Observer:
  58   virtual void OwnerKeySet(bool success) OVERRIDE;
  59
  60   // Checks whether NSS slots with private key are mounted or
  61   // not. Responds via |callback|.
  62   static void IsPrivateKeyExistAsync(const IsOwnerCallback& callback);
  63
  64   static void SetOwnerKeyUtilForTesting(
  65       const scoped_refptr<OwnerKeyUtil>& owner_key_util);
  66
  67   static void SetDeviceSettingsServiceForTesting(
  68       DeviceSettingsService* device_settings_service);
  69
  70  private:
  71   friend class OwnerSettingsServiceFactory;
  72
  73   explicit OwnerSettingsService(Profile* profile);
  74
  75   // Reloads private key from profile's NSS slots. Responds via call
  76   // to OnPrivateKeyLoaded().
  77   void ReloadPrivateKey();
  78
  79   // Called when ReloadPrivateKey() completes it's work.
  80   void OnPrivateKeyLoaded(scoped_ptr<crypto::RSAPrivateKey> private_key);
  81
  82   // Returns testing instance of OwnerKeyUtil when it's set, otherwise
  83   // returns |owner_key_util_|.
  84   scoped_refptr<OwnerKeyUtil> GetOwnerKeyUtil();
  85
  86   // Returns testing instance of DeviceSettingsService when it's set,
  87   // otherwise returns pointer to a singleton instance, when it's
  88   // initialized.
  89   DeviceSettingsService* GetDeviceSettingsService();
  90
  91   // Profile this service instance belongs to.
  92   Profile* profile_;
  93
  94   scoped_refptr<PrivateKey> private_key_;
  95
  96   scoped_refptr<OwnerKeyUtil> owner_key_util_;
  97
  98   std::vector<IsOwnerCallback> pending_is_owner_callbacks_;
  99
 100   // Whether profile still needs to be initialized.
 101   bool waiting_for_profile_creation_;
 102
 103   // Whether TPM token still needs to be initialized.
 104   bool waiting_for_tpm_token_;
 105
 106   content::NotificationRegistrar registrar_;
 107
 108   base::ThreadChecker thread_checker_;
 109
 110   base::WeakPtrFactory<OwnerSettingsService> weak_factory_;
 111
 112   DISALLOW_COPY_AND_ASSIGN(OwnerSettingsService);
 113 };
 114
 115 }  // namespace chromeos
 116
 117 #endif  // CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_H_