components/policy/core/common/cloud/cloud_policy_manager.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 COMPONENTS_POLICY_CORE_COMMON_CLOUD_CLOUD_POLICY_MANAGER_H_
   6 #define COMPONENTS_POLICY_CORE_COMMON_CLOUD_CLOUD_POLICY_MANAGER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/prefs/pref_member.h"
  15 #include "components/policy/core/common/cloud/cloud_policy_core.h"
  16 #include "components/policy/core/common/cloud/cloud_policy_store.h"
  17 #include "components/policy/core/common/cloud/component_cloud_policy_service.h"
  18 #include "components/policy/core/common/configuration_policy_provider.h"
  19 #include "components/policy/policy_export.h"
  20
  21 namespace base {
  22 class FilePath;
  23 class SequencedTaskRunner;
  24 }
  25
  26 namespace net {
  27 class URLRequestContextGetter;
  28 }
  29
  30 namespace policy {
  31
  32 class PolicyMap;
  33
  34 // CloudPolicyManager is the main switching central between cloud policy and the
  35 // upper layers of the policy stack. It wires up a CloudPolicyCore to the
  36 // ConfigurationPolicyProvider interface.
  37 //
  38 // This class contains the base functionality, there are subclasses that add
  39 // functionality specific to user-level and device-level cloud policy, such as
  40 // blocking on initial user policy fetch or device enrollment.
  41 class POLICY_EXPORT CloudPolicyManager
  42     : public ConfigurationPolicyProvider,
  43       public CloudPolicyStore::Observer,
  44       public ComponentCloudPolicyService::Delegate {
  45  public:
  46   // |task_runner| is the runner for policy refresh tasks.
  47   // |file_task_runner| is used for file operations. Currently this must be the
  48   // FILE BrowserThread.
  49   // |io_task_runner| is used for network IO. Currently this must be the IO
  50   // BrowserThread.
  51   CloudPolicyManager(
  52       const std::string& policy_type,
  53       const std::string& settings_entity_id,
  54       CloudPolicyStore* cloud_policy_store,
  55       const scoped_refptr<base::SequencedTaskRunner>& task_runner,
  56       const scoped_refptr<base::SequencedTaskRunner>& file_task_runner,
  57       const scoped_refptr<base::SequencedTaskRunner>& io_task_runner);
  58   ~CloudPolicyManager() override;
  59
  60   CloudPolicyCore* core() { return &core_; }
  61   const CloudPolicyCore* core() const { return &core_; }
  62
  63   // ConfigurationPolicyProvider:
  64   void Shutdown() override;
  65   bool IsInitializationComplete(PolicyDomain domain) const override;
  66   void RefreshPolicies() override;
  67
  68   // CloudPolicyStore::Observer:
  69   void OnStoreLoaded(CloudPolicyStore* cloud_policy_store) override;
  70   void OnStoreError(CloudPolicyStore* cloud_policy_store) override;
  71
  72   // ComponentCloudPolicyService::Delegate:
  73   void OnComponentCloudPolicyUpdated() override;
  74
  75  protected:
  76   // Check whether fully initialized and if so, publish policy by calling
  77   // ConfigurationPolicyStore::UpdatePolicy().
  78   void CheckAndPublishPolicy();
  79
  80   // Writes Chrome policy into |policy_map|. This is intended to be overridden
  81   // by subclasses that want to post-process policy before publishing it. The
  82   // default implementation just copies over |store()->policy_map()|.
  83   virtual void GetChromePolicy(PolicyMap* policy_map);
  84
  85   void CreateComponentCloudPolicyService(
  86       const base::FilePath& policy_cache_path,
  87       const scoped_refptr<net::URLRequestContextGetter>& request_context,
  88       CloudPolicyClient* client);
  89
  90   void ClearAndDestroyComponentCloudPolicyService();
  91
  92   // Convenience accessors to core() components.
  93   CloudPolicyClient* client() { return core_.client(); }
  94   const CloudPolicyClient* client() const { return core_.client(); }
  95   CloudPolicyStore* store() { return core_.store(); }
  96   const CloudPolicyStore* store() const { return core_.store(); }
  97   CloudPolicyService* service() { return core_.service(); }
  98   const CloudPolicyService* service() const { return core_.service(); }
  99   ComponentCloudPolicyService* component_policy_service() const {
 100     return component_policy_service_.get();
 101   }
 102
 103  private:
 104   // Completion handler for policy refresh operations.
 105   void OnRefreshComplete(bool success);
 106
 107   CloudPolicyCore core_;
 108   scoped_ptr<ComponentCloudPolicyService> component_policy_service_;
 109
 110   // Whether there's a policy refresh operation pending, in which case all
 111   // policy update notifications are deferred until after it completes.
 112   bool waiting_for_policy_refresh_;
 113
 114   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
 115   scoped_refptr<base::SequencedTaskRunner> io_task_runner_;
 116
 117   DISALLOW_COPY_AND_ASSIGN(CloudPolicyManager);
 118 };
 119
 120 }  // namespace policy
 121
 122 #endif  // COMPONENTS_POLICY_CORE_COMMON_CLOUD_CLOUD_POLICY_MANAGER_H_