1 /* 2 * Copyright (C) 2013 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.internal.telephony; 18 19 import android.Manifest; 20 import android.app.Activity; 21 import android.app.AppOpsManager; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.os.Message; 25 import android.os.UserHandle; 26 import android.provider.Telephony; 27 import android.telephony.SubscriptionManager; 28 import android.telephony.SmsCbMessage; 29 30 /** 31 * Dispatch new Cell Broadcasts to receivers. Acquires a private wakelock until the broadcast 32 * completes and our result receiver is called. 33 */ 34 public class CellBroadcastHandler extends WakeLockStateMachine { 35 CellBroadcastHandler(Context context, Phone phone)36 private CellBroadcastHandler(Context context, Phone phone) { 37 this("CellBroadcastHandler", context, phone); 38 } 39 CellBroadcastHandler(String debugTag, Context context, Phone phone)40 protected CellBroadcastHandler(String debugTag, Context context, Phone phone) { 41 super(debugTag, context, phone); 42 } 43 44 /** 45 * Create a new CellBroadcastHandler. 46 * @param context the context to use for dispatching Intents 47 * @return the new handler 48 */ makeCellBroadcastHandler(Context context, Phone phone)49 public static CellBroadcastHandler makeCellBroadcastHandler(Context context, Phone phone) { 50 CellBroadcastHandler handler = new CellBroadcastHandler(context, phone); 51 handler.start(); 52 return handler; 53 } 54 55 /** 56 * Handle Cell Broadcast messages from {@code CdmaInboundSmsHandler}. 57 * 3GPP-format Cell Broadcast messages sent from radio are handled in the subclass. 58 * 59 * @param message the message to process 60 * @return true if an ordered broadcast was sent; false on failure 61 */ 62 @Override handleSmsMessage(Message message)63 protected boolean handleSmsMessage(Message message) { 64 if (message.obj instanceof SmsCbMessage) { 65 handleBroadcastSms((SmsCbMessage) message.obj); 66 return true; 67 } else { 68 loge("handleMessage got object of type: " + message.obj.getClass().getName()); 69 return false; 70 } 71 } 72 73 /** 74 * Dispatch a Cell Broadcast message to listeners. 75 * @param message the Cell Broadcast to broadcast 76 */ handleBroadcastSms(SmsCbMessage message)77 protected void handleBroadcastSms(SmsCbMessage message) { 78 String receiverPermission; 79 int appOp; 80 81 Intent intent; 82 if (message.isEmergencyMessage()) { 83 log("Dispatching emergency SMS CB, SmsCbMessage is: " + message); 84 intent = new Intent(Telephony.Sms.Intents.SMS_EMERGENCY_CB_RECEIVED_ACTION); 85 receiverPermission = Manifest.permission.RECEIVE_EMERGENCY_BROADCAST; 86 appOp = AppOpsManager.OP_RECEIVE_EMERGECY_SMS; 87 } else { 88 log("Dispatching SMS CB, SmsCbMessage is: " + message); 89 intent = new Intent(Telephony.Sms.Intents.SMS_CB_RECEIVED_ACTION); 90 receiverPermission = Manifest.permission.RECEIVE_SMS; 91 appOp = AppOpsManager.OP_RECEIVE_SMS; 92 } 93 intent.putExtra("message", message); 94 SubscriptionManager.putPhoneIdAndSubIdExtra(intent, mPhone.getPhoneId()); 95 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, receiverPermission, appOp, 96 mReceiver, getHandler(), Activity.RESULT_OK, null, null); 97 } 98 } 99