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 22 import com.android.phone.vvm.omtp.OmtpConstants; 23 import com.android.phone.vvm.omtp.VvmLog; 24 25 import java.io.UnsupportedEncodingException; 26 import java.util.Locale; 27 28 /** 29 * Send client originated OMTP messages to the OMTP server. 30 * <p> 31 * Uses {@link PendingIntent} instead of a call back to notify when the message is 32 * sent. This is primarily to keep the implementation simple and reuse what the underlying 33 * {@link SmsManager} interface provides. 34 * <p> 35 * Provides simple APIs to send different types of mobile originated OMTP SMS to the VVM server. 36 */ 37 public abstract class OmtpMessageSender { 38 protected static final String TAG = "OmtpMessageSender"; 39 protected short mApplicationPort; 40 protected String mDestinationNumber; 41 protected SmsManager mSmsManager; 42 OmtpMessageSender(SmsManager smsManager, short applicationPort, String destinationNumber)43 public OmtpMessageSender(SmsManager smsManager, short applicationPort, 44 String destinationNumber) { 45 mSmsManager = smsManager; 46 mApplicationPort = applicationPort; 47 mDestinationNumber = destinationNumber; 48 } 49 50 /** 51 * Sends a request to the VVM server to activate VVM for the current subscriber. 52 * 53 * @param sentIntent If not NULL this PendingIntent is broadcast when the message is 54 * successfully sent, or failed. 55 */ requestVvmActivation(@ullable PendingIntent sentIntent)56 public void requestVvmActivation(@Nullable PendingIntent sentIntent) {} 57 58 /** 59 * Sends a request to the VVM server to deactivate VVM for the current subscriber. 60 * 61 * @param sentIntent If not NULL this PendingIntent is broadcast when the message is 62 * successfully sent, or failed. 63 */ requestVvmDeactivation(@ullable PendingIntent sentIntent)64 public void requestVvmDeactivation(@Nullable PendingIntent sentIntent) {} 65 66 /** 67 * Send a request to the VVM server to get account status of the current subscriber. 68 * 69 * @param sentIntent If not NULL this PendingIntent is broadcast when the message is 70 * successfully sent, or failed. 71 */ requestVvmStatus(@ullable PendingIntent sentIntent)72 public void requestVvmStatus(@Nullable PendingIntent sentIntent) {} 73 sendSms(String text, PendingIntent sentIntent)74 protected void sendSms(String text, PendingIntent sentIntent) { 75 // If application port is set to 0 then send simple text message, else send data message. 76 if (mApplicationPort == 0) { 77 VvmLog 78 .v(TAG, String.format("Sending TEXT sms '%s' to %s", text, mDestinationNumber)); 79 mSmsManager.sendTextMessageWithSelfPermissions(mDestinationNumber, null, text, 80 sentIntent, null, false); 81 } else { 82 byte[] data; 83 try { 84 data = text.getBytes("UTF-8"); 85 } catch (UnsupportedEncodingException e) { 86 throw new IllegalStateException("Failed to encode: " + text); 87 } 88 VvmLog.v(TAG, 89 String.format(Locale.US, "Sending BINARY sms '%s' to %s:%d", text, 90 mDestinationNumber, mApplicationPort)); 91 mSmsManager.sendDataMessageWithSelfPermissions(mDestinationNumber, null, 92 mApplicationPort, data, sentIntent, null); 93 } 94 } 95 appendField(StringBuilder sb, String field, Object value)96 protected void appendField(StringBuilder sb, String field, Object value) { 97 sb.append(field).append(OmtpConstants.SMS_KEY_VALUE_SEPARATOR).append(value); 98 } 99 } 100