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.os.UserHandle; 25 import android.telecom.PhoneAccountHandle; 26 import android.telecom.TelecomManager; 27 import android.telephony.CarrierConfigManager; 28 import android.telephony.TelephonyManager; 29 import android.telephony.VisualVoicemailService; 30 import android.text.TextUtils; 31 import android.util.ArraySet; 32 33 import com.android.internal.telephony.flags.Flags; 34 35 import java.util.Collections; 36 import java.util.Set; 37 38 /** 39 * Receives {@link Intent#ACTION_PACKAGE_ADDED} for the system dialer to inform it a carrier visual 40 * voicemail app has been installed. ACTION_PACKAGE_ADDED requires the receiver process to be 41 * running so the system dialer cannot receive it itself. 42 * 43 * Carrier VVM apps are usually regular apps, not a 44 * {@link VisualVoicemailService} nor {@link android.service.carrier.CarrierMessagingService} so it 45 * will not take precedence over the system dialer. The system dialer should disable VVM it self 46 * to let the carrier app take over since the installation is an explicit user interaction. Carrier 47 * customer support might also ask the user to switch to their app if they believe there's any 48 * issue in the system dialer so this transition should not require more user interaction. 49 * 50 * @see CarrierConfigManager#KEY_CARRIER_VVM_PACKAGE_NAME_STRING_ARRAY 51 */ 52 public class CarrierVvmPackageInstalledReceiver extends BroadcastReceiver { 53 54 private static final String TAG = "VvmPkgInstalledRcvr"; 55 56 /** 57 * Hidden broadcast to the system dialer 58 */ 59 private static final String ACTION_CARRIER_VVM_PACKAGE_INSTALLED = 60 "com.android.internal.telephony.CARRIER_VVM_PACKAGE_INSTALLED"; 61 register(Context context)62 public void register(Context context) { 63 IntentFilter intentFilter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); 64 intentFilter.addDataScheme("package"); 65 context.registerReceiver(this, intentFilter); 66 } 67 68 @Override onReceive(Context context, Intent intent)69 public void onReceive(Context context, Intent intent) { 70 if (intent.getData() == null) { 71 return; 72 } 73 String packageName = intent.getData().getSchemeSpecificPart(); 74 if (packageName == null) { 75 return; 76 } 77 78 TelecomManager telecomManager = context.getSystemService(TelecomManager.class); 79 String systemDialer = telecomManager.getSystemDialerPackage(); 80 TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class); 81 for (PhoneAccountHandle phoneAccountHandle : telecomManager.getCallCapablePhoneAccounts()) { 82 TelephonyManager pinnedTelephonyManager = telephonyManager 83 .createForPhoneAccountHandle(phoneAccountHandle); 84 85 if (pinnedTelephonyManager == null) { 86 VvmLog.e(TAG, "carrierVvmPkgAdded: cannot create TelephonyManager from " 87 + phoneAccountHandle); 88 continue; 89 } 90 91 if (!getCarrierVvmPackages(telephonyManager).contains(packageName)) { 92 VvmLog.w(TAG, "carrierVvmPkgAdded: carrier vvm packages doesn't contain " 93 + packageName); 94 continue; 95 } 96 97 VvmLog.i(TAG, "carrierVvmPkgAdded: Carrier VVM app " + packageName + " installed"); 98 99 String vvmPackage = pinnedTelephonyManager.getVisualVoicemailPackageName(); 100 if (!TextUtils.equals(vvmPackage, systemDialer)) { 101 // Non system dialer do not need to prioritize carrier vvm app. 102 VvmLog.i(TAG, "carrierVvmPkgAdded: non system dialer " 103 + vvmPackage + " ignored"); 104 continue; 105 } 106 107 VvmLog.i(TAG, "carrierVvmPkgAdded: sending vvm package installed broadcast to " 108 + vvmPackage); 109 Intent broadcast = new Intent(ACTION_CARRIER_VVM_PACKAGE_INSTALLED); 110 broadcast.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName); 111 broadcast.setPackage(vvmPackage); 112 if (Flags.hsumBroadcast()) { 113 context.sendBroadcastAsUser(broadcast, UserHandle.ALL); 114 } else { 115 context.sendBroadcast(broadcast); 116 } 117 } 118 } 119 getCarrierVvmPackages(TelephonyManager pinnedTelephonyManager)120 private static Set<String> getCarrierVvmPackages(TelephonyManager pinnedTelephonyManager) { 121 Set<String> carrierPackages = new ArraySet<>(); 122 123 PersistableBundle config = pinnedTelephonyManager.getCarrierConfig(); 124 String singlePackage = config 125 .getString(CarrierConfigManager.KEY_CARRIER_VVM_PACKAGE_NAME_STRING); 126 if (!TextUtils.isEmpty(singlePackage)) { 127 carrierPackages.add(singlePackage); 128 } 129 String[] arrayPackages = config 130 .getStringArray(CarrierConfigManager.KEY_CARRIER_VVM_PACKAGE_NAME_STRING_ARRAY); 131 if (arrayPackages != null) { 132 Collections.addAll(carrierPackages, arrayPackages); 133 } 134 135 return carrierPackages; 136 } 137 } 138