| // |
| // Copyright (C) 2017 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include "update_engine/update_manager/enterprise_device_policy_impl.h" |
| |
| #include "update_engine/common/utils.h" |
| |
| using std::string; |
| |
| namespace chromeos_update_manager { |
| |
| // Check to see if Enterprise-managed (has DevicePolicy) and/or Kiosk-mode. If |
| // so, then defer to those settings. |
| EvalStatus EnterpriseDevicePolicyImpl::UpdateCheckAllowed( |
| EvaluationContext* ec, |
| State* state, |
| std::string* error, |
| UpdateCheckParams* result) const { |
| DevicePolicyProvider* const dp_provider = state->device_policy_provider(); |
| SystemProvider* const system_provider = state->system_provider(); |
| |
| const bool* device_policy_is_loaded_p = |
| ec->GetValue(dp_provider->var_device_policy_is_loaded()); |
| if (device_policy_is_loaded_p && *device_policy_is_loaded_p) { |
| bool kiosk_app_control_chrome_version = false; |
| |
| // Check whether updates are disabled by policy. |
| const bool* update_disabled_p = |
| ec->GetValue(dp_provider->var_update_disabled()); |
| if (update_disabled_p && *update_disabled_p) { |
| // Check whether allow kiosk app to control chrome version policy. This |
| // policy is only effective when AU is disabled by admin. |
| const bool* allow_kiosk_app_control_chrome_version_p = ec->GetValue( |
| dp_provider->var_allow_kiosk_app_control_chrome_version()); |
| kiosk_app_control_chrome_version = |
| allow_kiosk_app_control_chrome_version_p && |
| *allow_kiosk_app_control_chrome_version_p; |
| if (!kiosk_app_control_chrome_version) { |
| // No kiosk pin chrome version policy. AU is really disabled. |
| LOG(INFO) << "Updates disabled by policy, blocking update checks."; |
| return EvalStatus::kAskMeAgainLater; |
| } |
| } |
| |
| if (kiosk_app_control_chrome_version) { |
| // Get the required platform version from Chrome. |
| const string* kiosk_required_platform_version_p = |
| ec->GetValue(system_provider->var_kiosk_required_platform_version()); |
| if (!kiosk_required_platform_version_p) { |
| LOG(INFO) << "Kiosk app required platform version is not fetched, " |
| "blocking update checks"; |
| return EvalStatus::kAskMeAgainLater; |
| } |
| |
| result->target_version_prefix = *kiosk_required_platform_version_p; |
| LOG(INFO) << "Allow kiosk app to control Chrome version policy is set," |
| << ", target version is " |
| << (kiosk_required_platform_version_p |
| ? *kiosk_required_platform_version_p |
| : std::string("latest")); |
| } else { |
| // Determine whether a target version prefix is dictated by policy. |
| const string* target_version_prefix_p = |
| ec->GetValue(dp_provider->var_target_version_prefix()); |
| if (target_version_prefix_p) |
| result->target_version_prefix = *target_version_prefix_p; |
| } |
| |
| // Determine whether a target channel is dictated by policy. |
| const bool* release_channel_delegated_p = |
| ec->GetValue(dp_provider->var_release_channel_delegated()); |
| if (release_channel_delegated_p && !(*release_channel_delegated_p)) { |
| const string* release_channel_p = |
| ec->GetValue(dp_provider->var_release_channel()); |
| if (release_channel_p) |
| result->target_channel = *release_channel_p; |
| } |
| } |
| return EvalStatus::kContinue; |
| } |
| |
| } // namespace chromeos_update_manager |