| // Copyright (c) 2012 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/policy/configuration_policy_pref_store.h" |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/logging.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/prefs/pref_value_map.h" |
| #include "base/strings/string16.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "chrome/browser/policy/configuration_policy_handler_list.h" |
| #include "chrome/browser/policy/policy_error_map.h" |
| |
| namespace policy { |
| |
| namespace { |
| |
| // Policies are loaded early on startup, before PolicyErrorMaps are ready to |
| // be retrieved. This function is posted to UI to log any errors found on |
| // Refresh below. |
| void LogErrors(PolicyErrorMap* errors) { |
| PolicyErrorMap::const_iterator iter; |
| for (iter = errors->begin(); iter != errors->end(); ++iter) { |
| string16 policy = ASCIIToUTF16(iter->first); |
| DLOG(WARNING) << "Policy " << policy << ": " << iter->second; |
| } |
| } |
| |
| } // namespace |
| |
| ConfigurationPolicyPrefStore::ConfigurationPolicyPrefStore( |
| PolicyService* service, |
| const ConfigurationPolicyHandlerList* handler_list, |
| PolicyLevel level) |
| : policy_service_(service), |
| handler_list_(handler_list), |
| level_(level) { |
| // Read initial policy. |
| prefs_.reset(CreatePreferencesFromPolicies()); |
| policy_service_->AddObserver(POLICY_DOMAIN_CHROME, this); |
| } |
| |
| void ConfigurationPolicyPrefStore::AddObserver(PrefStore::Observer* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void ConfigurationPolicyPrefStore::RemoveObserver( |
| PrefStore::Observer* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| bool ConfigurationPolicyPrefStore::HasObservers() const { |
| return observers_.might_have_observers(); |
| } |
| |
| bool ConfigurationPolicyPrefStore::IsInitializationComplete() const { |
| return policy_service_->IsInitializationComplete(POLICY_DOMAIN_CHROME); |
| } |
| |
| bool ConfigurationPolicyPrefStore::GetValue(const std::string& key, |
| const Value** value) const { |
| const Value* stored_value = NULL; |
| if (!prefs_.get() || !prefs_->GetValue(key, &stored_value)) |
| return false; |
| |
| if (value) |
| *value = stored_value; |
| return true; |
| } |
| |
| void ConfigurationPolicyPrefStore::OnPolicyUpdated( |
| const PolicyNamespace& ns, |
| const PolicyMap& previous, |
| const PolicyMap& current) { |
| DCHECK_EQ(POLICY_DOMAIN_CHROME, ns.domain); |
| DCHECK(ns.component_id.empty()); |
| Refresh(); |
| } |
| |
| void ConfigurationPolicyPrefStore::OnPolicyServiceInitialized( |
| PolicyDomain domain) { |
| if (domain == POLICY_DOMAIN_CHROME) { |
| FOR_EACH_OBSERVER(PrefStore::Observer, observers_, |
| OnInitializationCompleted(true)); |
| } |
| } |
| |
| ConfigurationPolicyPrefStore::~ConfigurationPolicyPrefStore() { |
| policy_service_->RemoveObserver(POLICY_DOMAIN_CHROME, this); |
| } |
| |
| void ConfigurationPolicyPrefStore::Refresh() { |
| scoped_ptr<PrefValueMap> new_prefs(CreatePreferencesFromPolicies()); |
| std::vector<std::string> changed_prefs; |
| new_prefs->GetDifferingKeys(prefs_.get(), &changed_prefs); |
| prefs_.swap(new_prefs); |
| |
| // Send out change notifications. |
| for (std::vector<std::string>::const_iterator pref(changed_prefs.begin()); |
| pref != changed_prefs.end(); |
| ++pref) { |
| FOR_EACH_OBSERVER(PrefStore::Observer, observers_, |
| OnPrefValueChanged(*pref)); |
| } |
| } |
| |
| PrefValueMap* ConfigurationPolicyPrefStore::CreatePreferencesFromPolicies() { |
| scoped_ptr<PrefValueMap> prefs(new PrefValueMap); |
| PolicyMap filtered_policies; |
| filtered_policies.CopyFrom(policy_service_->GetPolicies( |
| PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))); |
| filtered_policies.FilterLevel(level_); |
| |
| scoped_ptr<PolicyErrorMap> errors(new PolicyErrorMap); |
| |
| handler_list_->ApplyPolicySettings(filtered_policies, |
| prefs.get(), |
| errors.get()); |
| |
| // Retrieve and log the errors once the UI loop is ready. This is only an |
| // issue during startup. |
| base::MessageLoop::current()->PostTask( |
| FROM_HERE, base::Bind(&LogErrors, base::Owned(errors.release()))); |
| |
| return prefs.release(); |
| } |
| |
| } // namespace policy |