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95 lines
3.5 KiB
Java
95 lines
3.5 KiB
Java
/*
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* Copyright (C) 2015 Open Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms.util;
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import android.annotation.SuppressLint;
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import android.content.Intent;
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import android.os.Bundle;
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import android.provider.Telephony;
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import android.telephony.PhoneNumberUtils;
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import java.io.ByteArrayOutputStream;
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import java.lang.reflect.Method;
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import java.util.Calendar;
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import java.util.GregorianCalendar;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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public class SmsUtil {
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private static byte reverseByte(byte b) {
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return (byte) ((b & 0xF0) >> 4 | (b & 0x0F) << 4);
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}
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/*
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credit :D
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http://stackoverflow.com/a/12338541
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*/
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@SuppressWarnings("unchecked")
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public static byte[] buildSmsPdu(String senderPstnNumber, String body) throws Exception{
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byte[] scBytes = PhoneNumberUtils.networkPortionToCalledPartyBCD("0000000000");
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byte[] senderBytes = PhoneNumberUtils.networkPortionToCalledPartyBCD(senderPstnNumber);
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int lsmcs = scBytes.length;
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byte[] dateBytes = new byte[7];
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Calendar calendar = new GregorianCalendar();
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dateBytes[0] = reverseByte((byte) (calendar.get(Calendar.YEAR)));
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dateBytes[1] = reverseByte((byte) (calendar.get(Calendar.MONTH) + 1));
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dateBytes[2] = reverseByte((byte) (calendar.get(Calendar.DAY_OF_MONTH)));
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dateBytes[3] = reverseByte((byte) (calendar.get(Calendar.HOUR_OF_DAY)));
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dateBytes[4] = reverseByte((byte) (calendar.get(Calendar.MINUTE)));
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dateBytes[5] = reverseByte((byte) (calendar.get(Calendar.SECOND)));
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dateBytes[6] = reverseByte((byte) ((calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET)) / (60 * 1000 * 15)));
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ByteArrayOutputStream bo = new ByteArrayOutputStream();
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bo.write(lsmcs);
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bo.write(scBytes);
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bo.write(0x04);
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bo.write((byte) senderPstnNumber.length());
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bo.write(senderBytes);
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bo.write(0x00);
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bo.write(0x00);
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bo.write(dateBytes);
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String sReflectedClassName = "com.android.internal.telephony.GsmAlphabet";
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Class cReflectedNFCExtras = Class.forName(sReflectedClassName);
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Method stringToGsm7BitPacked = cReflectedNFCExtras.getMethod("stringToGsm7BitPacked", new Class[] { String.class });
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stringToGsm7BitPacked.setAccessible(true);
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byte[] bodybytes = (byte[]) stringToGsm7BitPacked.invoke(null, body);
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bo.write(bodybytes);
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return bo.toByteArray();
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}
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@SuppressLint("NewApi")
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public static Intent buildSmsReceivedIntent(String senderPstnNumber, String smsBody) throws Exception {
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final Intent smsIntent = mock(Intent.class);
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final Bundle smsExtras = new Bundle();
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final byte[] smsPdu = SmsUtil.buildSmsPdu(senderPstnNumber, smsBody);
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smsExtras.putSerializable("pdus", new Object[]{smsPdu});
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when(smsIntent.getAction()).thenReturn(Telephony.Sms.Intents.SMS_RECEIVED_ACTION);
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when(smsIntent.getExtras()).thenReturn(smsExtras);
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return smsIntent;
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}
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}
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