| // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/config_dir_policy_provider.h" |
| |
| #include <set> |
| |
| #include "base/file_util.h" |
| #include "base/logging.h" |
| #include "base/scoped_ptr.h" |
| #include "base/utf_string_conversions.h" |
| #include "base/values.h" |
| #include "chrome/common/json_value_serializer.h" |
| |
| ConfigDirPolicyProvider::ConfigDirPolicyProvider(const FilePath& config_dir) |
| : config_dir_(config_dir) { |
| } |
| |
| bool ConfigDirPolicyProvider::Provide(ConfigurationPolicyStore* store) { |
| scoped_ptr<DictionaryValue> policy(ReadPolicies()); |
| DecodePolicyValueTree(policy.get(), store); |
| return true; |
| } |
| |
| DictionaryValue* ConfigDirPolicyProvider::ReadPolicies() { |
| // Enumerate the files and sort them lexicographically. |
| std::set<FilePath> files; |
| file_util::FileEnumerator file_enumerator(config_dir_, false, |
| file_util::FileEnumerator::FILES); |
| for (FilePath config_file_path = file_enumerator.Next(); |
| !config_file_path.empty(); config_file_path = file_enumerator.Next()) |
| files.insert(config_file_path); |
| |
| // Start with an empty dictionary and merge the files' contents. |
| DictionaryValue* policy = new DictionaryValue; |
| for (std::set<FilePath>::iterator config_file_iter = files.begin(); |
| config_file_iter != files.end(); ++config_file_iter) { |
| JSONFileValueSerializer deserializer(*config_file_iter); |
| int error_code = 0; |
| std::string error_msg; |
| scoped_ptr<Value> value(deserializer.Deserialize(&error_code, &error_msg)); |
| if (!value.get()) { |
| LOG(WARNING) << "Failed to read configuration file " |
| << config_file_iter->value() << ": " << error_msg; |
| continue; |
| } |
| if (!value->IsType(Value::TYPE_DICTIONARY)) { |
| LOG(WARNING) << "Expected JSON dictionary in configuration file " |
| << config_file_iter->value(); |
| continue; |
| } |
| policy->MergeDictionary(static_cast<DictionaryValue*>(value.get())); |
| } |
| |
| return policy; |
| } |
| |
| void ConfigDirPolicyProvider::DecodePolicyValueTree( |
| DictionaryValue* policies, |
| ConfigurationPolicyStore* store) { |
| const PolicyValueMap* mapping = PolicyValueMapping(); |
| for (PolicyValueMap::const_iterator i = mapping->begin(); |
| i != mapping->end(); ++i) { |
| const PolicyValueMapEntry& entry(*i); |
| Value* value; |
| if (policies->Get(UTF8ToWide(entry.name), &value) && |
| value->IsType(entry.value_type)) |
| store->Apply(entry.policy_type, value->DeepCopy()); |
| } |
| |
| // TODO(mnissler): Handle preference overrides once |ConfigurationPolicyStore| |
| // supports it. |
| } |
| |