| /* |
| * Copyright (C) 2018 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.server.appbinding.finders; |
| |
| import static android.provider.Telephony.Sms.Intents.ACTION_DEFAULT_SMS_PACKAGE_CHANGED_INTERNAL; |
| |
| import android.Manifest.permission; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ServiceInfo; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.UserHandle; |
| import android.service.carrier.CarrierMessagingClientService; |
| import android.service.carrier.ICarrierMessagingClientService; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.Slog; |
| |
| import com.android.internal.R; |
| import com.android.internal.telephony.SmsApplication; |
| import com.android.server.appbinding.AppBindingConstants; |
| |
| import java.util.function.BiConsumer; |
| |
| /** |
| * Find the CarrierMessagingClientService service within the default SMS app. |
| */ |
| public class CarrierMessagingClientServiceFinder |
| extends AppServiceFinder<CarrierMessagingClientService, ICarrierMessagingClientService> { |
| public CarrierMessagingClientServiceFinder(Context context, |
| BiConsumer<AppServiceFinder, Integer> listener, |
| Handler callbackHandler) { |
| super(context, listener, callbackHandler); |
| } |
| |
| @Override |
| protected boolean isEnabled(AppBindingConstants constants) { |
| return constants.SMS_SERVICE_ENABLED |
| && mContext.getResources().getBoolean(R.bool.config_useSmsAppService); |
| } |
| |
| @Override |
| public String getAppDescription() { |
| return "[Default SMS app]"; |
| } |
| |
| @Override |
| protected Class<CarrierMessagingClientService> getServiceClass() { |
| return CarrierMessagingClientService.class; |
| } |
| |
| @Override |
| public ICarrierMessagingClientService asInterface(IBinder obj) { |
| return ICarrierMessagingClientService.Stub.asInterface(obj); |
| } |
| |
| @Override |
| protected String getServiceAction() { |
| return TelephonyManager.ACTION_CARRIER_MESSAGING_CLIENT_SERVICE; |
| } |
| |
| @Override |
| protected String getServicePermission() { |
| return permission.BIND_CARRIER_MESSAGING_CLIENT_SERVICE; |
| } |
| |
| @Override |
| public String getTargetPackage(int userId) { |
| final ComponentName cn = SmsApplication.getDefaultSmsApplicationAsUser( |
| mContext, /* updateIfNeeded= */ true, userId); |
| String ret = cn == null ? null : cn.getPackageName(); |
| |
| if (DEBUG) { |
| Slog.d(TAG, "getTargetPackage()=" + ret); |
| } |
| |
| return ret; |
| } |
| |
| @Override |
| public void startMonitoring() { |
| final IntentFilter filter = new IntentFilter(ACTION_DEFAULT_SMS_PACKAGE_CHANGED_INTERNAL); |
| mContext.registerReceiverAsUser(mSmsAppChangedWatcher, UserHandle.ALL, filter, |
| /* permission= */ null, mHandler); |
| } |
| |
| @Override |
| protected String validateService(ServiceInfo service) { |
| final String packageName = service.packageName; |
| final String process = service.processName; |
| |
| if (process == null || TextUtils.equals(packageName, process)) { |
| return "Service must not run on the main process"; |
| } |
| return null; // Null means accept this service. |
| } |
| |
| @Override |
| public int getBindFlags(AppBindingConstants constants) { |
| return constants.SMS_APP_BIND_FLAGS; |
| } |
| |
| private final BroadcastReceiver mSmsAppChangedWatcher = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (ACTION_DEFAULT_SMS_PACKAGE_CHANGED_INTERNAL.equals(intent.getAction())) { |
| mListener.accept(CarrierMessagingClientServiceFinder.this, getSendingUserId()); |
| } |
| } |
| }; |
| } |