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 #include "chrome/browser/policy/config_dir_policy_provider.h" 6 7 #include <set> 8 9 #include "base/file_util.h" 10 #include "base/values.h" 11 #include "content/common/json_value_serializer.h" 12 13 namespace policy { 14 15 ConfigDirPolicyProviderDelegate::ConfigDirPolicyProviderDelegate( 16 const FilePath& config_dir) 17 : FileBasedPolicyProvider::ProviderDelegate(config_dir) { 18 } 19 20 DictionaryValue* ConfigDirPolicyProviderDelegate::Load() { 21 // Enumerate the files and sort them lexicographically. 22 std::set<FilePath> files; 23 file_util::FileEnumerator file_enumerator(config_file_path(), false, 24 file_util::FileEnumerator::FILES); 25 for (FilePath config_file_path = file_enumerator.Next(); 26 !config_file_path.empty(); config_file_path = file_enumerator.Next()) 27 files.insert(config_file_path); 28 29 // Start with an empty dictionary and merge the files' contents. 30 DictionaryValue* policy = new DictionaryValue; 31 for (std::set<FilePath>::iterator config_file_iter = files.begin(); 32 config_file_iter != files.end(); ++config_file_iter) { 33 JSONFileValueSerializer deserializer(*config_file_iter); 34 int error_code = 0; 35 std::string error_msg; 36 scoped_ptr<Value> value(deserializer.Deserialize(&error_code, &error_msg)); 37 if (!value.get()) { 38 LOG(WARNING) << "Failed to read configuration file " 39 << config_file_iter->value() << ": " << error_msg; 40 continue; 41 } 42 if (!value->IsType(Value::TYPE_DICTIONARY)) { 43 LOG(WARNING) << "Expected JSON dictionary in configuration file " 44 << config_file_iter->value(); 45 continue; 46 } 47 policy->MergeDictionary(static_cast<DictionaryValue*>(value.get())); 48 } 49 50 return policy; 51 } 52 53 base::Time ConfigDirPolicyProviderDelegate::GetLastModification() { 54 base::Time last_modification = base::Time(); 55 base::PlatformFileInfo file_info; 56 57 // If the path does not exist or points to a directory, it's safe to load. 58 if (!file_util::GetFileInfo(config_file_path(), &file_info) || 59 !file_info.is_directory) { 60 return last_modification; 61 } 62 63 // Enumerate the files and find the most recent modification timestamp. 64 file_util::FileEnumerator file_enumerator(config_file_path(), 65 false, 66 file_util::FileEnumerator::FILES); 67 for (FilePath config_file = file_enumerator.Next(); 68 !config_file.empty(); 69 config_file = file_enumerator.Next()) { 70 if (file_util::GetFileInfo(config_file, &file_info) && 71 !file_info.is_directory) { 72 last_modification = std::max(last_modification, file_info.last_modified); 73 } 74 } 75 76 return last_modification; 77 } 78 79 ConfigDirPolicyProvider::ConfigDirPolicyProvider( 80 const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list, 81 const FilePath& config_dir) 82 : FileBasedPolicyProvider( 83 policy_list, 84 new ConfigDirPolicyProviderDelegate(config_dir)) { 85 } 86 87 } // namespace policy 88
