1 /* 2 * Copyright (C) 2015 Google Inc. All Rights Reserved. 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 package com.android.phone.vvm.omtp.sms; 17 18 import android.annotation.Nullable; 19 import android.app.PendingIntent; 20 import android.telephony.SmsManager; 21 import android.text.TextUtils; 22 23 import com.android.phone.vvm.omtp.OmtpConstants; 24 25 /** 26 * A implementation of the OmtpMessageSender using the standard OMTP sms protocol. 27 */ 28 public class OmtpStandardMessageSender extends OmtpMessageSender { 29 private final String mClientType; 30 private final String mProtocolVersion; 31 private final String mClientPrefix; 32 33 /** 34 * Creates a new instance of OmtpStandardMessageSender. 35 * 36 * @param smsManager SMS sending library. There is a different SmsManager for each SIM. 37 * @param applicationPort If set to a value > 0 then a binary sms is sent to this port number. 38 * Otherwise, a standard text SMS is sent. 39 * @param destinationNumber Destination number to be used. 40 * @param clientType The "ct" field to be set in the MO message. This is the value used by the 41 * VVM server to identify the client. Certain VVM servers require a specific agreed 42 * value for this field. 43 * @param protocolVersion OMTP protocol version. 44 * @param clientPrefix The client prefix requested to be used by the server in its MT messages. 45 */ OmtpStandardMessageSender(SmsManager smsManager, short applicationPort, String destinationNumber, String clientType, String protocolVersion, String clientPrefix)46 public OmtpStandardMessageSender(SmsManager smsManager, short applicationPort, 47 String destinationNumber, String clientType, String protocolVersion, 48 String clientPrefix) { 49 super(smsManager, applicationPort, destinationNumber); 50 mClientType = clientType; 51 mProtocolVersion = protocolVersion; 52 mClientPrefix = clientPrefix; 53 } 54 55 // Activate message: 56 // V1.1: Activate:pv=<value>;ct=<value> 57 // V1.2: Activate:pv=<value>;ct=<value>;pt=<value>;<Clientprefix> 58 // V1.3: Activate:pv=<value>;ct=<value>;pt=<value>;<Clientprefix> 59 @Override requestVvmActivation(@ullable PendingIntent sentIntent)60 public void requestVvmActivation(@Nullable PendingIntent sentIntent) { 61 StringBuilder sb = new StringBuilder().append(OmtpConstants.ACTIVATE_REQUEST); 62 63 appendProtocolVersionAndClientType(sb); 64 if (TextUtils.equals(mProtocolVersion, OmtpConstants.PROTOCOL_VERSION1_2) || 65 TextUtils.equals(mProtocolVersion, OmtpConstants.PROTOCOL_VERSION1_3)) { 66 appendApplicationPort(sb); 67 appendClientPrefix(sb); 68 } 69 70 sendSms(sb.toString(), sentIntent); 71 } 72 73 // Deactivate message: 74 // V1.1: Deactivate:pv=<value>;ct=<string> 75 // V1.2: Deactivate:pv=<value>;ct=<string> 76 // V1.3: Deactivate:pv=<value>;ct=<string> 77 @Override requestVvmDeactivation(@ullable PendingIntent sentIntent)78 public void requestVvmDeactivation(@Nullable PendingIntent sentIntent) { 79 StringBuilder sb = new StringBuilder().append(OmtpConstants.DEACTIVATE_REQUEST); 80 appendProtocolVersionAndClientType(sb); 81 82 sendSms(sb.toString(), sentIntent); 83 } 84 85 // Status message: 86 // V1.1: STATUS 87 // V1.2: STATUS 88 // V1.3: STATUS:pv=<value>;ct=<value>;pt=<value>;<Clientprefix> 89 @Override requestVvmStatus(@ullable PendingIntent sentIntent)90 public void requestVvmStatus(@Nullable PendingIntent sentIntent) { 91 StringBuilder sb = new StringBuilder().append(OmtpConstants.STATUS_REQUEST); 92 93 if (TextUtils.equals(mProtocolVersion, OmtpConstants.PROTOCOL_VERSION1_3)) { 94 appendProtocolVersionAndClientType(sb); 95 appendApplicationPort(sb); 96 appendClientPrefix(sb); 97 } 98 99 sendSms(sb.toString(), sentIntent); 100 } 101 appendProtocolVersionAndClientType(StringBuilder sb)102 private void appendProtocolVersionAndClientType(StringBuilder sb) { 103 sb.append(OmtpConstants.SMS_PREFIX_SEPARATOR); 104 appendField(sb, OmtpConstants.PROTOCOL_VERSION, mProtocolVersion); 105 sb.append(OmtpConstants.SMS_FIELD_SEPARATOR); 106 appendField(sb, OmtpConstants.CLIENT_TYPE, mClientType); 107 } 108 appendApplicationPort(StringBuilder sb)109 private void appendApplicationPort(StringBuilder sb) { 110 sb.append(OmtpConstants.SMS_FIELD_SEPARATOR); 111 appendField(sb, OmtpConstants.APPLICATION_PORT, mApplicationPort); 112 } 113 appendClientPrefix(StringBuilder sb)114 private void appendClientPrefix(StringBuilder sb) { 115 sb.append(OmtpConstants.SMS_FIELD_SEPARATOR); 116 sb.append(mClientPrefix); 117 } 118 } 119