Support policies referencing external data for device-local accounts

chrome/browser/chromeos/policy/device_local_account_policy_service.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_POLICY_SERVICE_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_POLICY_SERVICE_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.h"
+#include "chrome/browser/chromeos/policy/device_local_account_external_data_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/policy/cloud/cloud_policy_core.h"
 #include "chrome/browser/policy/cloud/cloud_policy_store.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace chromeos {
 class DeviceSettingsService;
 class SessionManagerClient;
 }
 
+namespace net {
+class URLRequestContextGetter;
+}
+
 namespace policy {
 
 struct DeviceLocalAccount;
+class DeviceLocalAccountExternalDataService;
 class DeviceLocalAccountPolicyStore;
 class DeviceManagementService;
 
 // The main switching central that downloads, caches, refreshes, etc. policy for
 // a single device-local account.
 class DeviceLocalAccountPolicyBroker {
  public:
   // |task_runner| is the runner for policy refresh tasks.
   DeviceLocalAccountPolicyBroker(
       const DeviceLocalAccount& account,
       scoped_ptr<DeviceLocalAccountPolicyStore> store,
+      scoped_refptr<DeviceLocalAccountExternalDataManager>
+          external_data_manager,
       const scoped_refptr<base::SequencedTaskRunner>& task_runner);
   ~DeviceLocalAccountPolicyBroker();
 
   // Initialize the broker, loading its |store_|.
   void Initialize();
 
   // For the difference between |account_id| and |user_id|, see the
   // documentation of DeviceLocalAccount.
   const std::string& account_id() const { return account_id_; }
   const std::string& user_id() const { return user_id_; }
 
   scoped_refptr<chromeos::DeviceLocalAccountExternalPolicyLoader>
       extension_loader() const { return extension_loader_; }
 
   CloudPolicyCore* core() { return &core_; }
   const CloudPolicyCore* core() const { return &core_; }
 
+  scoped_refptr<DeviceLocalAccountExternalDataManager> external_data_manager() {
+    return external_data_manager_;
+  }
+
   // Fire up the cloud connection for fetching policy for the account from the
   // cloud if this is an enterprise-managed device.
   void ConnectIfPossible(
       chromeos::DeviceSettingsService* device_settings_service,
-      DeviceManagementService* device_management_service);
-
-  // Destroy the cloud connection, stopping policy refreshes.
-  void Disconnect();
+      DeviceManagementService* device_management_service,
+      scoped_refptr<net::URLRequestContextGetter> request_context);
 
   // Reads the refresh delay from policy and configures the refresh scheduler.
   void UpdateRefreshDelay();
 
   // Retrieves the display name for the account as stored in policy. Returns an
   // empty string if the policy is not present.
   std::string GetDisplayName() const;
 
  private:
   const std::string account_id_;
   const std::string user_id_;
   const scoped_ptr<DeviceLocalAccountPolicyStore> store_;
+  scoped_refptr<DeviceLocalAccountExternalDataManager> external_data_manager_;
   scoped_refptr<chromeos::DeviceLocalAccountExternalPolicyLoader>
       extension_loader_;
   CloudPolicyCore core_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountPolicyBroker);
 };
 
 // Manages user policy blobs for device-local accounts present on the device.
 // The actual policy blobs are brokered by session_manager (to prevent file
 // manipulation), and we're making signature checks on the policy blobs to
@@ skipping 10 matching lines @@
 
     // The list of accounts has been updated.
     virtual void OnDeviceLocalAccountsChanged() = 0;
   };
 
   DeviceLocalAccountPolicyService(
       chromeos::SessionManagerClient* session_manager_client,
       chromeos::DeviceSettingsService* device_settings_service,
       chromeos::CrosSettings* cros_settings,
       scoped_refptr<base::SequencedTaskRunner> store_background_task_runner,
-      scoped_refptr<base::SequencedTaskRunner> extension_cache_task_runner);
+      scoped_refptr<base::SequencedTaskRunner> extension_cache_task_runner,
+      scoped_refptr<base::SequencedTaskRunner>
+          external_data_service_backend_task_runner,
+      scoped_refptr<base::SequencedTaskRunner> io_task_runner,
+      scoped_refptr<net::URLRequestContextGetter> request_context);
   virtual ~DeviceLocalAccountPolicyService();
 
+  // Shuts down the service and prevents further policy fetches from the cloud.
+  void Shutdown();
+
   // Initializes the cloud policy service connection.
   void Connect(DeviceManagementService* device_management_service);
 
-  // Prevents further policy fetches from the cloud.
-  void Disconnect();
-
   // Get the policy broker for a given |user_id|. Returns NULL if that |user_id|
   // does not belong to an existing device-local account.
   DeviceLocalAccountPolicyBroker* GetBrokerForUser(const std::string& user_id);
 
   // Indicates whether policy has been successfully fetched for the given
   // |user_id|.
   bool IsPolicyAvailableForUser(const std::string& user_id);
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
@@ skipping 36 matching lines @@
 
   // Calls |UpdateAccountList| if there are no previous calls pending.
   void UpdateAccountListIfNonePending();
 
   // Deletes brokers in |map| and clears it.
   void DeleteBrokers(PolicyBrokerMap* map);
 
   // Find the broker for a given |store|. Returns NULL if |store| is unknown.
   DeviceLocalAccountPolicyBroker* GetBrokerForStore(CloudPolicyStore* store);
 
+  ObserverList<Observer, true> observers_;
+
   chromeos::SessionManagerClient* session_manager_client_;
   chromeos::DeviceSettingsService* device_settings_service_;
   chromeos::CrosSettings* cros_settings_;
 
   DeviceManagementService* device_management_service_;
 
   // The device-local account policy brokers, keyed by user ID.
   PolicyBrokerMap policy_brokers_;
 
   // Whether a call to UpdateAccountList() is pending because |cros_settings_|
@@ skipping 10 matching lines @@
   OrphanCacheDeletionState orphan_cache_deletion_state_;
 
   // Account IDs whose extension cache directories are busy, either because a
   // broker for the account has not shut down completely yet or because the
   // directory is being deleted.
   std::set<std::string> busy_extension_cache_directories_;
 
   const scoped_refptr<base::SequencedTaskRunner> store_background_task_runner_;
   const scoped_refptr<base::SequencedTaskRunner> extension_cache_task_runner_;
 
-  ObserverList<Observer, true> observers_;
+  scoped_ptr<DeviceLocalAccountExternalDataService> external_data_service_;
+
+  scoped_refptr<net::URLRequestContextGetter> request_context_;
 
   const scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
       local_accounts_subscription_;
 
   base::WeakPtrFactory<DeviceLocalAccountPolicyService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountPolicyService);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_POLICY_SERVICE_H_