| /* |
| * Copyright (C) 2019 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. |
| */ |
| |
| package com.android.car.settings.security; |
| |
| import android.annotation.Nullable; |
| import android.bluetooth.BluetoothDevice; |
| import android.car.Car; |
| import android.car.CarNotConnectedException; |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.car.trust.CarTrustAgentEnrollmentManager; |
| import android.content.Context; |
| import android.content.SharedPreferences; |
| import android.os.UserHandle; |
| import android.preference.PreferenceManager; |
| |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceGroup; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.Logger; |
| import com.android.car.settings.common.PreferenceController; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Business logic of trusted device list page |
| */ |
| public class TrustedDeviceListPreferenceController extends |
| PreferenceController<PreferenceGroup> { |
| private static final Logger LOG = new Logger(TrustedDeviceListPreferenceController.class); |
| private final SharedPreferences mPrefs; |
| private final Car mCar; |
| @Nullable |
| private CarTrustAgentEnrollmentManager mCarTrustAgentEnrollmentManager; |
| private final CarTrustAgentEnrollmentManager.CarTrustAgentEnrollmentCallback |
| mCarTrustAgentEnrollmentCallback = |
| new CarTrustAgentEnrollmentManager.CarTrustAgentEnrollmentCallback() { |
| |
| @Override |
| public void onEnrollmentHandshakeFailure(BluetoothDevice device, int errorCode) { |
| } |
| |
| @Override |
| public void onAuthStringAvailable(BluetoothDevice device, String authString) { |
| } |
| |
| @Override |
| public void onEscrowTokenAdded(long handle) { |
| } |
| |
| @Override |
| public void onTrustRevoked(long handle, boolean success) { |
| if (success) { |
| refreshUi(); |
| } |
| } |
| |
| @Override |
| public void onEscrowTokenActiveStateChanged(long handle, boolean active) { |
| if (active) { |
| refreshUi(); |
| } |
| } |
| }; |
| |
| public TrustedDeviceListPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| mPrefs = PreferenceManager.getDefaultSharedPreferences(context); |
| mCar = Car.createCar(context); |
| try { |
| mCarTrustAgentEnrollmentManager = (CarTrustAgentEnrollmentManager) mCar.getCarManager( |
| Car.CAR_TRUST_AGENT_ENROLLMENT_SERVICE); |
| } catch (CarNotConnectedException e) { |
| LOG.e(e.getMessage(), e); |
| } |
| } |
| |
| @Override |
| protected void checkInitialized() { |
| if (mCarTrustAgentEnrollmentManager == null) { |
| throw new IllegalStateException("mCarTrustAgentEnrollmentManager is null."); |
| } |
| } |
| |
| @Override |
| protected Class<PreferenceGroup> getPreferenceType() { |
| return PreferenceGroup.class; |
| } |
| |
| |
| @Override |
| protected void updateState(PreferenceGroup preferenceGroup) { |
| List<Preference> updatedList = createTrustDevicePreferenceList(); |
| if (!isEqual(preferenceGroup, updatedList)) { |
| preferenceGroup.removeAll(); |
| for (Preference trustedDevice : updatedList) { |
| preferenceGroup.addPreference(trustedDevice); |
| } |
| } |
| preferenceGroup.setVisible(preferenceGroup.getPreferenceCount() > 0); |
| } |
| |
| @Override |
| protected void onStartInternal() { |
| try { |
| mCarTrustAgentEnrollmentManager.setEnrollmentCallback(mCarTrustAgentEnrollmentCallback); |
| } catch (CarNotConnectedException e) { |
| LOG.e(e.getMessage(), e); |
| } |
| } |
| |
| @Override |
| protected void onStopInternal() { |
| try { |
| mCarTrustAgentEnrollmentManager.setEnrollmentCallback(null); |
| } catch (CarNotConnectedException e) { |
| LOG.e(e.getMessage(), e); |
| } |
| } |
| |
| /** |
| * Method to compare two lists of preferences, used only by updateState method. |
| * |
| * @param preferenceGroup current preference group |
| * @param trustedDeviceList updated preference list |
| * @return {@code true} when two lists are the same |
| */ |
| private boolean isEqual(PreferenceGroup preferenceGroup, |
| List<Preference> trustedDeviceList) { |
| if (preferenceGroup.getPreferenceCount() != trustedDeviceList.size()) { |
| return false; |
| } |
| for (Preference p : trustedDeviceList) { |
| if (preferenceGroup.findPreference(p.getKey()) == null) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| private List<Preference> createTrustDevicePreferenceList() { |
| List<Preference> trustedDevicesList = new ArrayList<>(); |
| List<Integer> handles = new ArrayList<>(); |
| try { |
| handles = mCarTrustAgentEnrollmentManager.getEnrollmentHandlesForUser( |
| UserHandle.myUserId()); |
| } catch (CarNotConnectedException e) { |
| LOG.e(e.getMessage(), e); |
| } |
| for (Integer handle : handles) { |
| String res = mPrefs.getString(String.valueOf(handle), null); |
| if (res != null) { |
| trustedDevicesList.add( |
| createTrustedDevicePreference(res, String.valueOf(handle))); |
| } else { |
| LOG.e("Can not find device name for handle: " + handle); |
| } |
| } |
| return trustedDevicesList; |
| } |
| |
| private Preference createTrustedDevicePreference(String deviceName, String deviceId) { |
| Preference preference = new Preference(getContext()); |
| preference.setIcon(R.drawable.ic_settings_bluetooth); |
| preference.setTitle(deviceName); |
| preference.setKey(deviceId); |
| return preference; |
| } |
| } |