1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.voicemail; 18 19 import android.Manifest.permission; 20 import android.content.Context; 21 import android.content.pm.PackageManager; 22 import android.support.annotation.NonNull; 23 import java.util.ArrayList; 24 import java.util.List; 25 26 /** 27 * Handles permission checking for the voicemail module. Currently "phone" and "sms" permissions are 28 * required. 29 */ 30 public class VoicemailPermissionHelper { 31 32 /** *_VOICEMAIL permissions are auto-granted by being the default dialer. */ 33 private static final String[] VOICEMAIL_PERMISSIONS = { 34 permission.ADD_VOICEMAIL, 35 permission.WRITE_VOICEMAIL, 36 permission.READ_VOICEMAIL, 37 permission.READ_PHONE_STATE, 38 permission.SEND_SMS 39 }; 40 41 /** 42 * Returns {@code true} if the app has all permissions required for the voicemail module to 43 * operate. 44 */ 45 public static boolean hasPermissions(Context context) { 46 return getMissingPermissions(context).isEmpty(); 47 } 48 49 /** Returns a list of permission that is missing for the voicemail module to operate. */ 50 @NonNull 51 public static List<String> getMissingPermissions(Context context) { 52 List<String> result = new ArrayList<>(); 53 for (String permission : VOICEMAIL_PERMISSIONS) { 54 if (context.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) { 55 result.add(permission); 56 } 57 } 58 return result; 59 } 60 } 61
