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.dialer.preferredsim; 18 19 import android.content.ComponentName; 20 import android.content.Context; 21 import android.os.Build.VERSION; 22 import android.os.Build.VERSION_CODES; 23 import android.support.annotation.NonNull; 24 import android.support.annotation.Nullable; 25 import android.telecom.PhoneAccount; 26 import android.telecom.PhoneAccountHandle; 27 import android.telecom.TelecomManager; 28 import android.telephony.SubscriptionInfo; 29 import android.telephony.SubscriptionManager; 30 import android.telephony.TelephonyManager; 31 import android.text.TextUtils; 32 import com.android.dialer.common.LogUtil; 33 import com.android.dialer.configprovider.ConfigProviderComponent; 34 import com.google.common.base.Optional; 35 import com.google.common.collect.ImmutableSet; 36 37 /** 38 * Utilities for looking up and validating preferred {@link PhoneAccountHandle}. Contacts should 39 * follow the same logic. 40 */ 41 public class PreferredAccountUtil { 42 43 /** 44 * Validates {@code componentNameString} and {@code idString} maps to SIM that is present on the 45 * device. 46 */ 47 @NonNull getValidPhoneAccount( @onNull Context context, @Nullable String componentNameString, @Nullable String idString)48 public static Optional<PhoneAccountHandle> getValidPhoneAccount( 49 @NonNull Context context, @Nullable String componentNameString, @Nullable String idString) { 50 if (TextUtils.isEmpty(componentNameString) || TextUtils.isEmpty(idString)) { 51 LogUtil.i("PreferredAccountUtil.getValidPhoneAccount", "empty componentName or id"); 52 return Optional.absent(); 53 } 54 ComponentName componentName = ComponentName.unflattenFromString(componentNameString); 55 if (componentName == null) { 56 LogUtil.e("PreferredAccountUtil.getValidPhoneAccount", "cannot parse component name"); 57 return Optional.absent(); 58 } 59 PhoneAccountHandle phoneAccountHandle = new PhoneAccountHandle(componentName, idString); 60 61 if (isPhoneAccountValid(context, phoneAccountHandle)) { 62 return Optional.of(phoneAccountHandle); 63 } 64 return Optional.absent(); 65 } 66 isPhoneAccountValid( Context context, PhoneAccountHandle phoneAccountHandle)67 public static boolean isPhoneAccountValid( 68 Context context, PhoneAccountHandle phoneAccountHandle) { 69 if (VERSION.SDK_INT >= VERSION_CODES.O) { 70 return context 71 .getSystemService(TelephonyManager.class) 72 .createForPhoneAccountHandle(phoneAccountHandle) 73 != null; 74 } 75 76 PhoneAccount phoneAccount = 77 context.getSystemService(TelecomManager.class).getPhoneAccount(phoneAccountHandle); 78 if (phoneAccount == null) { 79 LogUtil.e("PreferredAccountUtil.isPhoneAccountValid", "invalid phone account"); 80 return false; 81 } 82 83 if (!phoneAccount.isEnabled()) { 84 LogUtil.e("PreferredAccountUtil.isPhoneAccountValid", "disabled phone account"); 85 return false; 86 } 87 for (SubscriptionInfo info : 88 SubscriptionManager.from(context).getActiveSubscriptionInfoList()) { 89 if (phoneAccountHandle.getId().startsWith(info.getIccId())) { 90 LogUtil.i("PreferredAccountUtil.isPhoneAccountValid", "sim found"); 91 return true; 92 } 93 } 94 return false; 95 } 96 97 /** 98 * Return a set of {@link android.accounts.Account#type} that is known to have writable contacts. 99 * This is a light weight implementation of {@link 100 * com.android.contacts.common.model.AccountTypeManager#getAccountTypes(boolean)}. External 101 * accounts are not supported. 102 */ getValidAccountTypes(Context context)103 public static ImmutableSet<String> getValidAccountTypes(Context context) { 104 return ImmutableSet.copyOf( 105 ConfigProviderComponent.get(context) 106 .getConfigProvider() 107 .getString( 108 "preferred_sim_valid_account_types", 109 "com.google;" 110 + "com.osp.app.signin;" 111 + "com.android.exchange;" 112 + "com.google.android.exchange;" 113 + "com.google.android.gm.exchange") 114 .split(";")); 115 } 116 } 117