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.cdma; 18 19 import android.Manifest; 20 import android.app.Activity; 21 import android.app.AppOpsManager; 22 import android.content.BroadcastReceiver; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.os.Bundle; 26 import android.os.Message; 27 import android.provider.Telephony.Sms.Intents; 28 import android.telephony.PhoneNumberUtils; 29 import android.telephony.SubscriptionManager; 30 import android.telephony.cdma.CdmaSmsCbProgramData; 31 import android.telephony.cdma.CdmaSmsCbProgramResults; 32 33 import com.android.internal.telephony.CommandsInterface; 34 import com.android.internal.telephony.PhoneConstants; 35 import com.android.internal.telephony.WakeLockStateMachine; 36 import com.android.internal.telephony.cdma.sms.BearerData; 37 import com.android.internal.telephony.cdma.sms.CdmaSmsAddress; 38 import com.android.internal.telephony.cdma.sms.SmsEnvelope; 39 40 import java.io.ByteArrayOutputStream; 41 import java.io.DataOutputStream; 42 import java.io.IOException; 43 import java.util.ArrayList; 44 45 /** 46 * Handle CDMA Service Category Program Data requests and responses. 47 */ 48 public final class CdmaServiceCategoryProgramHandler extends WakeLockStateMachine { 49 50 final CommandsInterface mCi; 51 52 /** 53 * Create a new CDMA inbound SMS handler. 54 */ CdmaServiceCategoryProgramHandler(Context context, CommandsInterface commandsInterface)55 CdmaServiceCategoryProgramHandler(Context context, CommandsInterface commandsInterface) { 56 super("CdmaServiceCategoryProgramHandler", context, null); 57 mContext = context; 58 mCi = commandsInterface; 59 } 60 61 /** 62 * Create a new State machine for SCPD requests. 63 * @param context the context to use 64 * @param commandsInterface the radio commands interface 65 * @return the new SCPD handler 66 */ makeScpHandler(Context context, CommandsInterface commandsInterface)67 static CdmaServiceCategoryProgramHandler makeScpHandler(Context context, 68 CommandsInterface commandsInterface) { 69 CdmaServiceCategoryProgramHandler handler = new CdmaServiceCategoryProgramHandler( 70 context, commandsInterface); 71 handler.start(); 72 return handler; 73 } 74 75 /** 76 * Handle Cell Broadcast messages from {@code CdmaInboundSmsHandler}. 77 * 3GPP-format Cell Broadcast messages sent from radio are handled in the subclass. 78 * 79 * @param message the message to process 80 * @return true if an ordered broadcast was sent; false on failure 81 */ 82 @Override handleSmsMessage(Message message)83 protected boolean handleSmsMessage(Message message) { 84 if (message.obj instanceof SmsMessage) { 85 return handleServiceCategoryProgramData((SmsMessage) message.obj); 86 } else { 87 loge("handleMessage got object of type: " + message.obj.getClass().getName()); 88 return false; 89 } 90 } 91 92 93 /** 94 * Send SCPD request to CellBroadcastReceiver as an ordered broadcast. 95 * @param sms the CDMA SmsMessage containing the SCPD request 96 * @return true if an ordered broadcast was sent; false on failure 97 */ handleServiceCategoryProgramData(SmsMessage sms)98 private boolean handleServiceCategoryProgramData(SmsMessage sms) { 99 ArrayList<CdmaSmsCbProgramData> programDataList = sms.getSmsCbProgramData(); 100 if (programDataList == null) { 101 loge("handleServiceCategoryProgramData: program data list is null!"); 102 return false; 103 } 104 105 Intent intent = new Intent(Intents.SMS_SERVICE_CATEGORY_PROGRAM_DATA_RECEIVED_ACTION); 106 intent.putExtra("sender", sms.getOriginatingAddress()); 107 intent.putParcelableArrayListExtra("program_data", programDataList); 108 SubscriptionManager.putPhoneIdAndSubIdExtra(intent, mPhone.getPhoneId()); 109 mContext.sendOrderedBroadcast(intent, Manifest.permission.RECEIVE_SMS, 110 AppOpsManager.OP_RECEIVE_SMS, mScpResultsReceiver, 111 getHandler(), Activity.RESULT_OK, null, null); 112 return true; 113 } 114 115 /** 116 * Broadcast receiver to handle results of ordered broadcast. Sends the SCPD results 117 * as a reply SMS, then sends a message to state machine to transition to idle. 118 */ 119 private final BroadcastReceiver mScpResultsReceiver = new BroadcastReceiver() { 120 @Override 121 public void onReceive(Context context, Intent intent) { 122 sendScpResults(); 123 if (DBG) log("mScpResultsReceiver finished"); 124 sendMessage(EVENT_BROADCAST_COMPLETE); 125 } 126 127 private void sendScpResults() { 128 int resultCode = getResultCode(); 129 if ((resultCode != Activity.RESULT_OK) && (resultCode != Intents.RESULT_SMS_HANDLED)) { 130 loge("SCP results error: result code = " + resultCode); 131 return; 132 } 133 Bundle extras = getResultExtras(false); 134 if (extras == null) { 135 loge("SCP results error: missing extras"); 136 return; 137 } 138 String sender = extras.getString("sender"); 139 if (sender == null) { 140 loge("SCP results error: missing sender extra."); 141 return; 142 } 143 ArrayList<CdmaSmsCbProgramResults> results 144 = extras.getParcelableArrayList("results"); 145 if (results == null) { 146 loge("SCP results error: missing results extra."); 147 return; 148 } 149 150 BearerData bData = new BearerData(); 151 bData.messageType = BearerData.MESSAGE_TYPE_SUBMIT; 152 bData.messageId = SmsMessage.getNextMessageId(); 153 bData.serviceCategoryProgramResults = results; 154 byte[] encodedBearerData = BearerData.encode(bData); 155 156 ByteArrayOutputStream baos = new ByteArrayOutputStream(100); 157 DataOutputStream dos = new DataOutputStream(baos); 158 try { 159 dos.writeInt(SmsEnvelope.TELESERVICE_SCPT); 160 dos.writeInt(0); //servicePresent 161 dos.writeInt(0); //serviceCategory 162 CdmaSmsAddress destAddr = CdmaSmsAddress.parse( 163 PhoneNumberUtils.cdmaCheckAndProcessPlusCodeForSms(sender)); 164 dos.write(destAddr.digitMode); 165 dos.write(destAddr.numberMode); 166 dos.write(destAddr.ton); // number_type 167 dos.write(destAddr.numberPlan); 168 dos.write(destAddr.numberOfDigits); 169 dos.write(destAddr.origBytes, 0, destAddr.origBytes.length); // digits 170 // Subaddress is not supported. 171 dos.write(0); //subaddressType 172 dos.write(0); //subaddr_odd 173 dos.write(0); //subaddr_nbr_of_digits 174 dos.write(encodedBearerData.length); 175 dos.write(encodedBearerData, 0, encodedBearerData.length); 176 // Ignore the RIL response. TODO: implement retry if SMS send fails. 177 mCi.sendCdmaSms(baos.toByteArray(), null); 178 } catch (IOException e) { 179 loge("exception creating SCP results PDU", e); 180 } finally { 181 try { 182 dos.close(); 183 } catch (IOException ignored) { 184 } 185 } 186 } 187 }; 188 } 189