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// 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_provider.h"
#include "base/callback.h"
#include "chrome/browser/policy/external_data_fetcher.h"
#include "chrome/browser/policy/policy_domain_descriptor.h"
#include "chrome/browser/policy/policy_map.h"
#include "policy/policy_constants.h"
namespace policy {
namespace {
const char* kProxyPolicies[] = {
key::kProxyMode,
key::kProxyServerMode,
key::kProxyServer,
key::kProxyPacUrl,
key::kProxyBypassList,
};
// Helper that converts deprecated chrome policies into their corresponding
// actual policies.
void FixDeprecatedPolicies(PolicyMap* policies) {
// Proxy settings have been configured by 5 policies that didn't mix well
// together, and maps of policies had to take this into account when merging
// policy sources. The proxy settings will eventually be configured by a
// single Dictionary policy when all providers have support for that. For
// now, the individual policies are mapped here to a single Dictionary policy
// that the rest of the policy machinery uses.
// The highest (level, scope) pair for an existing proxy policy is determined
// first, and then only policies with those exact attributes are merged.
PolicyMap::Entry current_priority; // Defaults to the lowest priority.
scoped_ptr<DictionaryValue> proxy_settings(new DictionaryValue);
for (size_t i = 0; i < arraysize(kProxyPolicies); ++i) {
const PolicyMap::Entry* entry = policies->Get(kProxyPolicies[i]);
if (entry) {
if (entry->has_higher_priority_than(current_priority)) {
proxy_settings->Clear();
current_priority = *entry;
}
if (!entry->has_higher_priority_than(current_priority) &&
!current_priority.has_higher_priority_than(*entry)) {
proxy_settings->Set(kProxyPolicies[i], entry->value->DeepCopy());
}
policies->Erase(kProxyPolicies[i]);
}
}
// Sets the new |proxy_settings| if kProxySettings isn't set yet, or if the
// new priority is higher.
const PolicyMap::Entry* existing = policies->Get(key::kProxySettings);
if (!proxy_settings->empty() &&
(!existing || current_priority.has_higher_priority_than(*existing))) {
policies->Set(key::kProxySettings,
current_priority.level,
current_priority.scope,
proxy_settings.release(),
NULL);
}
}
} // namespace
ConfigurationPolicyProvider::Observer::~Observer() {}
ConfigurationPolicyProvider::ConfigurationPolicyProvider()
: did_shutdown_(false) {}
ConfigurationPolicyProvider::~ConfigurationPolicyProvider() {
DCHECK(did_shutdown_);
}
void ConfigurationPolicyProvider::Init() {}
void ConfigurationPolicyProvider::Shutdown() {
did_shutdown_ = true;
}
bool ConfigurationPolicyProvider::IsInitializationComplete(
PolicyDomain domain) const {
return true;
}
void ConfigurationPolicyProvider::UpdatePolicy(
scoped_ptr<PolicyBundle> bundle) {
if (bundle.get())
policy_bundle_.Swap(bundle.get());
else
policy_bundle_.Clear();
FixDeprecatedPolicies(&policy_bundle_.Get(
PolicyNamespace(POLICY_DOMAIN_CHROME, std::string())));
FOR_EACH_OBSERVER(ConfigurationPolicyProvider::Observer,
observer_list_,
OnUpdatePolicy(this));
}
void ConfigurationPolicyProvider::AddObserver(Observer* observer) {
observer_list_.AddObserver(observer);
}
void ConfigurationPolicyProvider::RemoveObserver(Observer* observer) {
observer_list_.RemoveObserver(observer);
}
void ConfigurationPolicyProvider::RegisterPolicyDomain(
scoped_refptr<const PolicyDomainDescriptor> descriptor) {}
} // namespace policy
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