smsmsgincoming.java

Java写的通过手机收发短信息的程序。

//
// Copyright (c) 2001 Kvanttisofta oy.  All rights reserved.
//
//
// SMS PDU message class for incoming messages.
// ([e-mail]).
//
// $Id: SmsMsgIncoming.java,v 1.1.1.1 2001/04/18 04:19:00 aspa Exp $.
//
// TODO:
// - support other data encoding schemes than GSM 7 bit
//

package fi.kvanttisofta.sms;

public class SmsMsgIncoming {
    public final int SMS_MSG_ENCODING_7BIT = 0;

    private int    smscAddressLength;
    private int    smscAddressType;
    private String smscAddress;
    private int    smsDeliverCode;
    private int    senderAddressLength;
    private int    senderAddressType;
    private String senderAddress;
    private int    tpPid;      // protocol identifier.
    private int    tpDcs;      // data coding scheme.
    private String tpScts;     // time stamp.
    private int    tpUdl;      // message length.
    private int    encMsgLen;
    private String tpUd;       // user message (as sent).
    private String msg;        // user message (decoded).

    public String getSenderNumber() {
	return senderAddress;
    }

    public String getMessage() {
	return msg;
    }

    public SmsMsgIncoming(String smspdu) throws PduParseException {
	int pdulen = smspdu.length();
	String tmpstr;
	int i = 0;

	try {
	    boolean hasSmscInfo = false;

	    String octet1str = smspdu.substring(i, 2);
	    int octet1 = Integer.parseInt(octet1str, 16);
	    i=i+2;
	    String octet2str = smspdu.substring(i, i+2);
	    int octet2 = Integer.parseInt(octet2str, 16);
	    i=i+2;

	    // simple heuristic for deducing whether the PDU contains
	    // SMSC info (if second octet is a SMSC type-of-address
	    // field it always has bit 7 set).
	    if (octet2 >= 127)
		hasSmscInfo = true;

	    if( hasSmscInfo ) {
		// SMSC info included in the PDU.
		
		// get SMSC address length.
		smscAddressLength = octet1;
		
		// get SMSC address type.
		smscAddressType = octet2;

		// get SMSC address string (minus type len).
		int smsAddrLastIndex = i + (smscAddressLength*2)-2;
		tmpstr = smspdu.substring(i, smsAddrLastIndex);
		smscAddress = SmsPduCodec.swapDigits(tmpstr);
		if( smscAddress.indexOf('F') != -1 ) // strip trailing F.
		    smscAddress = smscAddress.substring(0,
						smscAddress.length()-1);
		if((smscAddressType & 0xf0) == 0x90) // international format.
		    smscAddress = '+' + smscAddress;
		i=i+(smscAddressLength*2)-2;

		String smsDeliverStr = smspdu.substring(i, i+2);
		smsDeliverCode = Integer.parseInt(smsDeliverStr, 16);
		i=i+2;
	    
		// get sender address length.
		String addressLenStr = smspdu.substring(i, i+2);
		senderAddressLength = Integer.parseInt(addressLenStr, 16);
		i=i+2;
	    } else {
		// no SMSC info in the PDU.
		smsDeliverCode = octet1;
		senderAddressLength = octet2;		
	    }

	    // decode GSM SMS-DELIVER PDU message.
	    if(smsDeliverCode != 0x04)
		throw new PduParseException("unknown SMS-DELIVER code " +
					    smsDeliverCode);

	    // get sender address type.
	    String addressTypeStr = smspdu.substring(i, i+2);
	    senderAddressType = Integer.parseInt(addressTypeStr, 16);
	    i=i+2;

	    // get sender address.
	    int senderLastIndex = i+senderAddressLength+senderAddressLength%2;
	    tmpstr = smspdu.substring(i, senderLastIndex);
	    senderAddress = SmsPduCodec.swapDigits(tmpstr);
	    senderAddress = senderAddress.substring(0, senderAddressLength);
	    if( (senderAddressType & 0xf0) == 0x90 ) // 1001xxxx?
		senderAddress = '+' + senderAddress;
	    i=i+senderAddressLength + senderAddressLength%2;
	    
	    // get protocol id.
	    String protocolStr = smspdu.substring(i, i+2);
	    tpPid = Integer.parseInt(protocolStr, 16);
	    if(tpPid != 0x00)
		throw new PduParseException("unknown protocol ID " + tpPid);
	    i=i+2;

	    // get data encoding scheme.
	    String dataEncStr = smspdu.substring(i, i+2);
	    tpDcs = Integer.parseInt(dataEncStr, 16);
	    if(tpDcs != 0x00)
		throw new PduParseException("unknown data encoding scheme "+
					    tpDcs);
	    i=i+2;

	    // get timestamp.
	    tmpstr = smspdu.substring(i, i+7*2);
	    tpScts = SmsPduCodec.swapDigits(tmpstr);
	    i=i+7*2;

	    // get message length.
	    String msgLenStr = smspdu.substring(i, i+2);
	    tpUdl = Integer.parseInt(msgLenStr, 16);
	    i=i+2;

	    // calculate encoded message length.
	    if(tpDcs == 0x00) {
		encMsgLen = (tpUdl*7) / 8;
		if( ((tpUdl*7) % 8) != 0 )
		    encMsgLen++;
	    } else
		encMsgLen = tpUdl;

	    // get message string.
	    tpUd = smspdu.substring(i, i + encMsgLen*2);
	    
	    msg = SmsPduCodec.sevenBitDecode(tpUd, tpUdl);

	} catch (IndexOutOfBoundsException e) {
	    throw new PduParseException("SMS PDU too short: " + e);
	} catch (NumberFormatException e) {
	    throw new PduParseException("Hexadecimal number expected: " + e);
	}

	if( (i + tpUd.length()) < pdulen )
	    throw new PduParseException("PDU too long");

    }

    public String toString() {
	StringBuffer sb = new StringBuffer(200);
	sb.append("\n");
	sb.append("\t smscAddressLength   = 0x" +
		  SmsPduCodec.toHexString(smscAddressLength));
	sb.append("\n\t smscAddressType     = 0x" +
		  SmsPduCodec.toHexString(smscAddressType));
	sb.append("\n\t smscAddress         = " + smscAddress);
	sb.append("\n\t smsDeliverCode      = 0x" +
		  SmsPduCodec.toHexString(smsDeliverCode));
	sb.append("\n\t senderAddressLength = 0x" +
		  SmsPduCodec.toHexString(senderAddressLength));
	sb.append("\n\t senderAddressType   = 0x" +
		  SmsPduCodec.toHexString(senderAddressType));
	sb.append("\n\t senderAddress       = " + senderAddress);
	sb.append("\n\t tpPid               = 0x" +
		  SmsPduCodec.toHexString(tpPid));
	sb.append("\n\t tpDcs               = 0x" +
		  SmsPduCodec.toHexString(tpDcs));
	sb.append("\n\t tpScts              = " + tpScts);
	sb.append("\n\t tpUdl               = 0x" +
		  SmsPduCodec.toHexString(tpUdl));
	sb.append("\n\t tpUd                = '" + tpUd + "'");
	sb.append("\n\t msg                 = '" + msg + "'");
	sb.append("\n\t msg hex             = " + SmsPduCodec.hexDump(msg));
	return new String(sb);
    }

    public static void main(String[] args) {
	String smspdu1 =
	    "07917238010010F5040BC87238880900F100009930925161958003C16010";

	//String smspdu2 = "040C91534850251863000000214061738580665079991EC603DC65BA0E344DBBEB6C7619F47683EAF5791A240FC3DF723A3D0D3A2DD37275D80D4F93DF6E103D3C2F9F5C206A9A1D0E83CC613C28F60AC7626B761A9E77C1C96690BBDE2ECBDF6FB70E04CBE16AB0582E579B01";
	String smspdu2 = "040C91534850251863000000214061738580665079991EC603DC65BA0E344DBBEB6C7619F47683EAF5791A240FC3DF723A3D0D3A2DD37275D80D4F93DF6E103D3C2F9F5C206A9A1D0E83CC613C28F60AC7626B761A9E77C1C96690BBDE2ECBDF6FB70E04CBE16AB0582E579B01";
	String smspdu3 = "040C915348502518630000002140618383800FC6B49B0C82D160B59A0C179BD900";

	//String smspdu4 = "040C91534850251863000000212161515480665079991EC603DC65BA0E344DBBEB6C7619F47683EAF5791A240FC3DF723A3D0D3A2DD37275D80D4F93DF6E103D3C2F9F5C206A9A1D0E83CC613C28F60AC7626B761A9E77C1C96690BBDE2ECBDF6FB70E04CBE16AB0582E579B01";
	String smspdu4 = "040C915348700689440000002121717570801FC6301E44AFB3DFF37918E4AEB7CBF2F7DB0D82E57035582C97ABCD00";

	SmsMsgIncoming sms1 = null;
	try {
	    sms1 = new SmsMsgIncoming(smspdu1);
	} catch (PduParseException e) {
	    System.err.println("error in PDU parsing: " + e);
	}
	System.err.println("pdu1: " + smspdu1);
	System.err.println("message1: " + sms1 + "\n\n");

	SmsMsgIncoming sms2 = null;
        try {
            sms2 = new SmsMsgIncoming(smspdu2);
        } catch (PduParseException e) {
            System.err.println("error in PDU parsing: " + e);
        }
        System.err.println("pdu2: " + smspdu2);
        System.err.println("message2: " + sms2 + "\n\n");


	SmsMsgIncoming sms3 = null;
        try {
            sms3 = new SmsMsgIncoming(smspdu3);
        } catch (PduParseException e) {
            System.err.println("error in PDU parsing: " + e);
        }
        System.err.println("pdu3: " + smspdu3);
        System.err.println("message3: " + sms3 + "\n\n");


	SmsMsgIncoming sms4 = null;
        try {
            sms4 = new SmsMsgIncoming(smspdu4);
        } catch (PduParseException e) {
            System.err.println("error in PDU parsing: " + e);
        }
        System.err.println("pdu4: " + smspdu4);
        System.err.println("message4: " + sms4 + "\n\n");
	System.err.println("number: '" + sms4.getSenderNumber() + "'");
	System.err.println("msg: '" + sms4.getMessage() + "'");

	// sms4 hexdump.
	String str4 = sms4.getMessage();
	System.err.println("dump: " + SmsPduCodec.hexDump(str4));
    }

}