opblindxferholdok.cxx

Vovida 社区开源的 SIP 协议源码

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
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 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */


static const char* const OpBlindXferHoldOk_cxx_Version =
    "$Id: OpBlindXferHoldOk.cxx,v 1.18 2002/11/09 02:13:07 derekm Exp $";


#include "global.h"
#include "AckMsg.hxx"
#include "OpBlindXferHoldOk.hxx"
#include "SipEvent.hxx"
#include "SipTransceiver.hxx"
#include "StatusMsg.hxx"
#include "SystemInfo.hxx"
#include "TransferMsg.hxx"
#include "UaCallInfo.hxx"
#include "UaConfiguration.hxx"
#include "UaCommandLine.hxx"
#include "UaStateMachine.hxx"
#include "SipVia.hxx"

///
using namespace Vocal;


OpBlindXferHoldOk::OpBlindXferHoldOk()
{}


OpBlindXferHoldOk::~OpBlindXferHoldOk()
{}


///

const char* const
OpBlindXferHoldOk::name() const
{
    return "OpBlindXferHoldOk";
}


///
const Sptr < State >
OpBlindXferHoldOk::process( const Sptr < SipProxyEvent > event )
{
    cpLog( LOG_DEBUG, "OpBlindXferHoldOk operation" );

    Sptr < SipEvent > sipEvent;
    sipEvent.dynamicCast( event );
    if ( sipEvent == 0 )
    {
        return 0;
    }
    Sptr < SipMsg > sipMsg = sipEvent->getSipMsg();
    assert( sipMsg != 0 );

    Sptr < StatusMsg > msg;
    msg.dynamicCast( sipMsg );
    if ( msg == 0 )
    {
        return 0;
    }

    Sptr < UaCallInfo > call;
    call.dynamicCast( event->getCallInfo() );
    assert( call != 0 );

    Sptr < Contact > contact = call->getContact();
    assert( contact != 0 );

    SipCSeq cseq = msg->getCSeq();
    if ( (int)(contact->getCSeqNum()) == cseq.getCSeqData().convertInt() )
    {
        if ( cseq.getMethod() == "INVITE" )
        {
            // Hold transaction
            int status = msg->getStatusLine().getStatusCode();

            if ( status == 100 )
                return 0;

            if ( status >= 200 )
            {
                cpLog( LOG_DEBUG, "ACK for INVITE to transfer target" );
                AckMsg ack( *msg );
                sipEvent->getSipStack()->sendAsync( ack );
            }

            if ( status >= 180 && status <= 200 )
            {
                // Send TRANSFER to transferee
                Sptr < InviteMsg > msg = call->getRingInvite();
                assert( msg != 0 );
                Sptr < InviteMsg > msg2 = call->getRing2Invite();
                assert( msg2 != 0 );

                cpLog( LOG_DEBUG, "\n\n%s", msg->encode().logData() );

                Sptr < Contact > contact = call->findContact( *msg );
                assert( contact != 0 );

                SipVia sipVia;
                sipVia.setprotoVersion( "2.0" );
                sipVia.setHost( Data( theSystem.gethostAddress() ) );
                sipVia.setPort( atoi( UaConfiguration::instance()->getLocalSipPort().c_str() ) );
                sipVia.setTransport( UaConfiguration::instance()->getSipTransport() );

		// pull out the sipUrl
		Sptr< BaseUrl > baseUrl = msg2->getTo().getUrl();
		assert( baseUrl != 0 );
		if( baseUrl->getType() == TEL_URL )
		{
		    cpLog( LOG_ERR, "TEL_URL currently not supported\n" );
		    assert( 0 );
		}
		// Assume we have a SIP_URL
		Sptr< BaseUrl > transferToUrl;
		transferToUrl = baseUrl;

                if ( contact->getStatus() == 200 )
                {
                    cpLog( LOG_DEBUG, "Send TRANSFER to original callee" );
                    const StatusMsg& status = contact->getStatusMsg();
                    //cpLog( LOG_DEBUG, "\n\n%s", status.encode().logData() );

                    assert( &status != 0 );

                    TransferMsg transferMsg( status, transferToUrl );
                    transferMsg.flushViaList();
                    transferMsg.setVia( sipVia, 0 );
                    sipEvent->getSipStack()->sendAsync( transferMsg );
                }
                else
                {
                    cpLog( LOG_DEBUG, "Send TRANSFER to original caller" );

                    TransferMsg transferMsg( *msg, transferToUrl );
                    transferMsg.flushViaList();
                    transferMsg.setVia( sipVia, 0 );
                    sipEvent->getSipStack()->sendAsync( transferMsg );
                }
            }
            else
            {
                if ( !UaCommandLine::instance()->getBoolOpt( "voicemail" ) )
                {
                    cout << "Transfer Target Hold status: " << status << endl;
                }
                cpLog( LOG_DEBUG, "Transfer target Hold failed status %d",
                       status );
                Sptr < UaStateMachine > stateMachine;
                stateMachine.dynamicCast( event->getCallInfo()->getFeature() );
                assert( stateMachine != 0 );

                return stateMachine->findState( "StateReRinging" );
            }
        }
    }
    return 0;
}