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 CHROME_BROWSER_POLICY_CONFIG_DIR_POLICY_LOADER_H_ 6 #define CHROME_BROWSER_POLICY_CONFIG_DIR_POLICY_LOADER_H_ 7 8 #include "base/files/file_path.h" 9 #include "base/files/file_path_watcher.h" 10 #include "chrome/browser/policy/async_policy_loader.h" 11 #include "chrome/browser/policy/policy_types.h" 12 13 namespace base { 14 class Value; 15 } 16 17 namespace policy { 18 19 // A policy loader implementation backed by a set of files in a given 20 // directory. The files should contain JSON-formatted policy settings. They are 21 // merged together and the result is returned in a PolicyBundle. 22 // The files are consulted in lexicographic file name order, so the 23 // last value read takes precedence in case of policy key collisions. 24 class ConfigDirPolicyLoader : public AsyncPolicyLoader { 25 public: 26 ConfigDirPolicyLoader(const base::FilePath& config_dir, PolicyScope scope); 27 virtual ~ConfigDirPolicyLoader(); 28 29 // AsyncPolicyLoader implementation. 30 virtual void InitOnFile() OVERRIDE; 31 virtual scoped_ptr<PolicyBundle> Load() OVERRIDE; 32 virtual base::Time LastModificationTime() OVERRIDE; 33 34 private: 35 // Loads the policy files at |path| into the |bundle|, with the given |level|. 36 void LoadFromPath(const base::FilePath& path, 37 PolicyLevel level, 38 PolicyBundle* bundle); 39 40 // Merges the 3rd party |policies| into the |bundle|, with the given |level|. 41 void Merge3rdPartyPolicy(const base::Value* policies, 42 PolicyLevel level, 43 PolicyBundle* bundle); 44 45 // Callback for the FilePathWatchers. 46 void OnFileUpdated(const base::FilePath& path, bool error); 47 48 // The directory containing the policy files. 49 base::FilePath config_dir_; 50 51 // Policies loaded by this provider will have this scope. 52 PolicyScope scope_; 53 54 // Watchers for events on the mandatory and recommended subdirectories of 55 // |config_dir_|. 56 base::FilePathWatcher mandatory_watcher_; 57 base::FilePathWatcher recommended_watcher_; 58 59 DISALLOW_COPY_AND_ASSIGN(ConfigDirPolicyLoader); 60 }; 61 62 } // namespace policy 63 64 #endif // CHROME_BROWSER_POLICY_CONFIG_DIR_POLICY_LOADER_H_ 65