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.phone.vvm; 18 19 import android.content.BroadcastReceiver; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.IntentFilter; 23 import android.os.PersistableBundle; 24 import android.telecom.PhoneAccountHandle; 25 import android.telecom.TelecomManager; 26 import android.telephony.CarrierConfigManager; 27 import android.telephony.TelephonyManager; 28 import android.telephony.VisualVoicemailService; 29 import android.text.TextUtils; 30 import android.util.ArraySet; 31 32 import java.util.Collections; 33 import java.util.Set; 34 35 /** 36 * Receives {@link Intent#ACTION_PACKAGE_ADDED} for the system dialer to inform it a carrier visual 37 * voicemail app has been installed. ACTION_PACKAGE_ADDED requires the receiver process to be 38 * running so the system dialer cannot receive it itself. 39 * 40 * Carrier VVM apps are usually regular apps, not a 41 * {@link VisualVoicemailService} nor {@link android.service.carrier.CarrierMessagingService} so it 42 * will not take precedence over the system dialer. The system dialer should disable VVM it self 43 * to let the carrier app take over since the installation is an explicit user interaction. Carrier 44 * customer support might also ask the user to switch to their app if they believe there's any 45 * issue in the system dialer so this transition should not require more user interaction. 46 * 47 * @see CarrierConfigManager#KEY_CARRIER_VVM_PACKAGE_NAME_STRING_ARRAY 48 */ 49 public class CarrierVvmPackageInstalledReceiver extends BroadcastReceiver { 50 51 private static final String TAG = "VvmPkgInstalledRcvr"; 52 53 /** 54 * Hidden broadcast to the system dialer 55 */ 56 private static final String ACTION_CARRIER_VVM_PACKAGE_INSTALLED = 57 "com.android.internal.telephony.CARRIER_VVM_PACKAGE_INSTALLED"; 58 register(Context context)59 public void register(Context context) { 60 IntentFilter intentFilter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); 61 intentFilter.addDataScheme("package"); 62 context.registerReceiver(this, intentFilter); 63 } 64 65 @Override onReceive(Context context, Intent intent)66 public void onReceive(Context context, Intent intent) { 67 if (intent.getData() == null) { 68 return; 69 } 70 String packageName = intent.getData().getSchemeSpecificPart(); 71 if (packageName == null) { 72 return; 73 } 74 75 TelecomManager telecomManager = context.getSystemService(TelecomManager.class); 76 String systemDialer = telecomManager.getSystemDialerPackage(); 77 TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class); 78 for (PhoneAccountHandle phoneAccountHandle : telecomManager.getCallCapablePhoneAccounts()) { 79 TelephonyManager pinnedTelephonyManager = telephonyManager 80 .createForPhoneAccountHandle(phoneAccountHandle); 81 82 if (pinnedTelephonyManager == null) { 83 VvmLog.e(TAG, "cannot create TelephonyManager from " + phoneAccountHandle); 84 continue; 85 } 86 87 if (!getCarrierVvmPackages(telephonyManager).contains(packageName)) { 88 continue; 89 } 90 91 VvmLog.i(TAG, "Carrier VVM app " + packageName + " installed"); 92 93 String vvmPackage = pinnedTelephonyManager.getVisualVoicemailPackageName(); 94 if (!TextUtils.equals(vvmPackage, systemDialer)) { 95 // Non system dialer do not need to prioritize carrier vvm app. 96 VvmLog.i(TAG, "non system dialer " + vvmPackage + " ignored"); 97 continue; 98 } 99 100 VvmLog.i(TAG, "sending broadcast to " + vvmPackage); 101 Intent broadcast = new Intent(ACTION_CARRIER_VVM_PACKAGE_INSTALLED); 102 broadcast.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName); 103 broadcast.setPackage(vvmPackage); 104 context.sendBroadcast(broadcast); 105 } 106 } 107 getCarrierVvmPackages(TelephonyManager pinnedTelephonyManager)108 private static Set<String> getCarrierVvmPackages(TelephonyManager pinnedTelephonyManager) { 109 Set<String> carrierPackages = new ArraySet<>(); 110 111 PersistableBundle config = pinnedTelephonyManager.getCarrierConfig(); 112 String singlePackage = config 113 .getString(CarrierConfigManager.KEY_CARRIER_VVM_PACKAGE_NAME_STRING); 114 if (!TextUtils.isEmpty(singlePackage)) { 115 carrierPackages.add(singlePackage); 116 } 117 String[] arrayPackages = config 118 .getStringArray(CarrierConfigManager.KEY_CARRIER_VVM_PACKAGE_NAME_STRING_ARRAY); 119 if (arrayPackages != null) { 120 Collections.addAll(carrierPackages, arrayPackages); 121 } 122 123 return carrierPackages; 124 } 125 } 126