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///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename:  SignonGenAuthTokenRequestDS.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 2003-2007 International Business Machines Corporation and
// others.  All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////

package com.ibm.as400.access;

import java.io.IOException;
import java.io.OutputStream;

// The SignonGenAuthTokenRequestDS class represents the data stream for the 'Generate authentication token on behalf of another user' request.
class SignonGenAuthTokenRequestDS extends ClientAccessDataStream
{
    SignonGenAuthTokenRequestDS(byte[] userIdentity, int profileTokenType, int profileTokenTimeout, int serverLevel,
            byte[] verificationID, byte[] clientIPAddr)
    {
        super(new byte[51 + userIdentity.length 
                       + (serverLevel < 5 ? 0 : 7) + 
                       + ((serverLevel >= 18 && null != verificationID && 0 < verificationID.length) ? verificationID.length + 10: 0)
                       + ((serverLevel >= 18 && null != clientIPAddr && 0 < clientIPAddr.length) ? clientIPAddr.length + 10: 0)
                       ]);

        setLength(data_.length);
        // setHeaderID(0x0000);
        setServerID(0xE009);
        // setCSInstance(0x00000000);
        // setCorrelation(0x00000000);
        setTemplateLen(0x0001);
        setReqRepID(0x7008);

        // Authentication token return type.
        data_[20] = 0x01;  // 0x01 - profile token.

        // Profile token type.
        set32bit(7, 21);
        set16bit(0x1116, 25);
        data_[27] = (byte)(0xF0 | profileTokenType);

        // Experation interval.
        set32bit(10, 28);
        set16bit(0x1117, 32);
        set32bit(profileTokenTimeout, 34);

        // Type of user identity.
        set32bit(7, 38);
        set16bit(0x1126, 42);
        data_[44] = (byte)0xF1;

        // Set user identity.
        //   LL
        set32bit(6 + userIdentity.length, 45);
        //   CP
        set16bit(0x1127, 49);
        //   Data.
        System.arraycopy(userIdentity, 0, data_, 51, userIdentity.length);

        int offset = 51 + userIdentity.length;

        if (serverLevel >= 5)
        {
            // Set return error messages.
            //   LL
            set32bit(7, offset);
            //   CP
            set16bit(0x1128, offset + 4);
            //   Data.
            data_[offset + 6] = 0x01;
            
            offset += 7;
        }
        
        if (serverLevel >= 18)
        {   
            if (null != verificationID && 0 < verificationID.length)
            {
                // LL
                set32bit(verificationID.length + 4 + 2 + 4, offset);
                // CP
                set16bit(0x1130, offset + 4);
                // CCSID
                set32bit(1208, offset + 6);
                // data
                System.arraycopy(verificationID, 0, data_, offset + 10, verificationID.length);
                
                offset += 10 + verificationID.length;
            }
            
            if (null != clientIPAddr && 0 < clientIPAddr.length)
            {
                // LL
                set32bit(clientIPAddr.length + 4 + 2 + 4, offset);
                // CP
                set16bit(0x1131, offset + 4);
                // CCSID
                set32bit(1208, offset + 6);
                // data
                System.arraycopy(clientIPAddr, 0, data_, offset + 10, clientIPAddr.length);
                
                offset += 10 + clientIPAddr.length;
            }
        }
    }

    void write(OutputStream out) throws IOException
    {
        if (Trace.traceOn_) Trace.log(Trace.DIAGNOSTIC, "Sending generate authentication token on behalf of another user request...");
        super.write(out);
    }
}