Adding policy support to the new network configuration stack.

chrome/browser/chromeos/policy/network_configuration_updater_impl.cc

+// Copyright (c) 2013 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/chromeos/policy/network_configuration_updater_impl.h"
+
+#include <string>
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/debug/stack_trace.h"
+#include "chrome/browser/policy/policy_map.h"
+#include "chromeos/network/managed_network_configuration_handler.h"
+#include "chromeos/network/onc/onc_utils.h"
+#include "policy/policy_constants.h"
+
+namespace policy {
+
+NetworkConfigurationUpdaterImpl::NetworkConfigurationUpdaterImpl(
+    PolicyService* policy_service)
+    : user_policy_initialized_(false),
+      policy_change_registrar_(
+          policy_service, PolicyNamespace(POLICY_DOMAIN_CHROME, std::string())),
+      policy_service_(policy_service) {
+  policy_change_registrar_.Observe(
+      key::kDeviceOpenNetworkConfiguration,
+      base::Bind(&NetworkConfigurationUpdaterImpl::OnPolicyChanged,
+                 base::Unretained(this),
+                 chromeos::onc::ONC_SOURCE_DEVICE_POLICY));
+  policy_change_registrar_.Observe(
+      key::kOpenNetworkConfiguration,
+      base::Bind(&NetworkConfigurationUpdaterImpl::OnPolicyChanged,
+                 base::Unretained(this),
+                 chromeos::onc::ONC_SOURCE_USER_POLICY));
+}
+
+NetworkConfigurationUpdaterImpl::~NetworkConfigurationUpdaterImpl() {
+}
+
+void NetworkConfigurationUpdaterImpl::OnUserPolicyInitialized() {
+  VLOG(1) << "User policy initialized.";
+  user_policy_initialized_ = true;
+  ApplyNetworkConfiguration(chromeos::onc::ONC_SOURCE_USER_POLICY);
+}
+
+void NetworkConfigurationUpdaterImpl::OnPolicyChanged(
+    chromeos::onc::ONCSource onc_source,
+    const base::Value* previous,
+    const base::Value* current) {
+  VLOG(1) << "Policy for ONC source "
+          << chromeos::onc::GetSourceAsString(onc_source) << " changed.";
+  VLOG(2) << "User policy is " << (user_policy_initialized_ ? "" : "not ")
+          << "initialized.";
+  ApplyNetworkConfiguration(onc_source);
+}
+
+void NetworkConfigurationUpdaterImpl::ApplyNetworkConfiguration(
+    chromeos::onc::ONCSource onc_source) {
+  VLOG(1) << "Apply policy for ONC source "
+          << chromeos::onc::GetSourceAsString(onc_source);
+
+  std::string policy_key;
+  if (onc_source == chromeos::onc::ONC_SOURCE_USER_POLICY)
+    policy_key = key::kOpenNetworkConfiguration;
+  else
+    policy_key = key::kDeviceOpenNetworkConfiguration;
+
+  const PolicyMap& policies = policy_service_->GetPolicies(
+      PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
+  const base::Value* policy_value = policies.GetValue(policy_key);
+
+  if (!policy_value) {
+    VLOG(1) << "The policy value is NULL. Aborting.";
+    return;
+  }
+
+  std::string onc_blob;
+  if (!policy_value->GetAsString(&onc_blob)) {
+    LOG(ERROR) << "ONC policy " << policy_key << " is not a string value.";
+    return;
+  }
+  VLOG(2) << "The policy contains this ONC: " << onc_blob;
+
+  if (onc_blob.empty())
+    onc_blob = chromeos::onc::kEmptyUnencryptedConfiguration;
+
+  scoped_ptr<base::DictionaryValue> onc_dict =
+      chromeos::onc::ReadDictionaryFromJson(onc_blob);
+  if (!onc_dict) {
+    LOG(ERROR) << "ONC loaded from policy " << policy_key
+               << " is not a valid JSON dictionary.";
+    return;
+  }
+
+  chromeos::ManagedNetworkConfigurationHandler::Get()->SetPolicy(onc_source,
+                                                                 *onc_dict);
+}
+
+}  // namespace policy