1 // Copyright 2018 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_POLICY_DEVICE_POLICY_CLOUD_EXTERNAL_DATA_MANAGER_H_
6 #define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_POLICY_CLOUD_EXTERNAL_DATA_MANAGER_H_
7 
8 #include <memory>
9 
10 #include "base/files/file_path.h"
11 #include "base/macros.h"
12 #include "base/memory/scoped_refptr.h"
13 #include "chrome/browser/chromeos/policy/cloud_external_data_manager_base.h"
14 #include "components/policy/core/common/policy_details.h"
15 
16 namespace base {
17 class SequencedTaskRunner;
18 }
19 
20 namespace policy {
21 
22 class CloudPolicyStore;
23 class ResourceCache;
24 
25 // Downloads, verifies and caches external data referenced by policies.
26 // This is the implementation for device policy external data.
27 class DevicePolicyCloudExternalDataManager
28     : public CloudExternalDataManagerBase {
29  public:
30   // |get_policy_details| is used to determine the maximum size that the
31   // data referenced by each policy can have. Download scheduling, verification,
32   // caching and retrieval tasks are done via the |backend_task_runner|, which
33   // must support file I/O. |resource_cache| is used to construct a data store
34   // which caches downloaded blobs on disk.
35   DevicePolicyCloudExternalDataManager(
36       const GetChromePolicyDetailsCallback& get_policy_details,
37       scoped_refptr<base::SequencedTaskRunner> backend_task_runner,
38       const base::FilePath& cache_path,
39       CloudPolicyStore* policy_store);
40   ~DevicePolicyCloudExternalDataManager() override;
41 
42   // Sets the cache maximum size for testing.
43   // It's used to avoid creating big data in tests.
44   static void SetCacheMaxSizeForTesting(int64_t cache_max_size);
45 
46  private:
47   // Cache used by the data store. Must outlive the data store.
48   std::unique_ptr<ResourceCache> resource_cache_;
49 
50   DISALLOW_COPY_AND_ASSIGN(DevicePolicyCloudExternalDataManager);
51 };
52 
53 }  // namespace policy
54 
55 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_POLICY_CLOUD_EXTERNAL_DATA_MANAGER_H_
56