Home | History | Annotate | Download | only in cloud 
      1 // Copyright (c) 2013 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_POLICY_CLOUD_COMPONENT_CLOUD_POLICY_UPDATER_H_
      6 #define CHROME_BROWSER_POLICY_CLOUD_COMPONENT_CLOUD_POLICY_UPDATER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/ref_counted.h"
     10 #include "base/memory/scoped_ptr.h"
     11 #include "chrome/browser/policy/cloud/external_policy_data_updater.h"
     12 
     13 namespace base {
     14 class SequencedTaskRunner;
     15 }
     16 
     17 namespace enterprise_management {
     18 class PolicyFetchResponse;
     19 }
     20 
     21 namespace net {
     22 class URLRequestContextGetter;
     23 }
     24 
     25 namespace policy {
     26 
     27 class ComponentCloudPolicyStore;
     28 
     29 // This class downloads external policy data, given PolicyFetchResponses.
     30 // It validates the PolicyFetchResponse and its corresponding data, and caches
     31 // them in a ComponentCloudPolicyStore. It also enforces size limits on what's
     32 // cached.
     33 // It retries to download the policy data periodically when a download fails.
     34 class ComponentCloudPolicyUpdater {
     35  public:
     36   // |task_runner| must support file I/O, and is used to post delayed retry
     37   // tasks.
     38   // |request_context| will be used for the download fetchers.
     39   // |store| must outlive the updater, and is where the downloaded data will
     40   // be cached.
     41   ComponentCloudPolicyUpdater(
     42       scoped_refptr<base::SequencedTaskRunner> task_runner,
     43       scoped_refptr<net::URLRequestContextGetter> request_context,
     44       ComponentCloudPolicyStore* store);
     45   ~ComponentCloudPolicyUpdater();
     46 
     47   // |response| is the latest policy information fetched for some component.
     48   // This method schedules the download of the policy data, if |response| is
     49   // validated. If the downloaded data also passes validation then that data
     50   // will be passed to the |store_|.
     51   void UpdateExternalPolicy(
     52       scoped_ptr<enterprise_management::PolicyFetchResponse> response);
     53 
     54  private:
     55   ComponentCloudPolicyStore* store_;
     56   ExternalPolicyDataUpdater external_policy_data_updater_;
     57 
     58   DISALLOW_COPY_AND_ASSIGN(ComponentCloudPolicyUpdater);
     59 };
     60 
     61 }  // namespace policy
     62 
     63 #endif  // CHROME_BROWSER_POLICY_CLOUD_COMPONENT_CLOUD_POLICY_UPDATER_H_
     64