1 // Copyright (c) 2010 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_FILE_BASED_POLICY_PROVIDER_H_ 6 #define CHROME_BROWSER_POLICY_FILE_BASED_POLICY_PROVIDER_H_ 7 #pragma once 8 9 #include "base/file_path.h" 10 #include "base/time.h" 11 #include "chrome/browser/policy/asynchronous_policy_provider.h" 12 13 namespace policy { 14 15 // File based policy provider that coordinates watching and reloading policy 16 // information from the configuration path. Actual logic for loading policy 17 // information is handled by a delegate passed at construction time. 18 class FileBasedPolicyProvider : public AsynchronousPolicyProvider { 19 public: 20 21 // Delegate interface for actual policy loading from the system. 22 class ProviderDelegate : public AsynchronousPolicyProvider::Delegate { 23 public: 24 explicit ProviderDelegate(const FilePath& config_file_path); 25 virtual ~ProviderDelegate(); 26 27 // AsynchronousPolicyProvider::Delegate implementation: 28 virtual DictionaryValue* Load() = 0; 29 30 // Gets the last modification timestamp for the policy information from the 31 // filesystem. Returns base::Time() if the information is not present, in 32 // which case Load() should return an empty dictionary. 33 virtual base::Time GetLastModification() = 0; 34 config_file_path()35 const FilePath& config_file_path() { return config_file_path_; } 36 37 private: 38 const FilePath config_file_path_; 39 40 DISALLOW_COPY_AND_ASSIGN(ProviderDelegate); 41 }; 42 43 // Assumes ownership of |delegate|. 44 FileBasedPolicyProvider(const PolicyDefinitionList* policy_list, 45 ProviderDelegate* delegate); ~FileBasedPolicyProvider()46 virtual ~FileBasedPolicyProvider() {} 47 48 private: 49 DISALLOW_COPY_AND_ASSIGN(FileBasedPolicyProvider); 50 }; 51 52 } // namespace policy 53 54 #endif // CHROME_BROWSER_POLICY_FILE_BASED_POLICY_PROVIDER_H_ 55