opxfercomplete.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,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * 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 OpXferComplete_cxx_Version =
    "$Id$";


#include "global.h"
#include "OpXferComplete.hxx"
#include "UaStateMachine.hxx"
#include "UaConfiguration.hxx"
#include "UaCallInfo.hxx"
#include "UaDevice.hxx"

#include "SipEvent.hxx"
#include "ByeMsg.hxx"
#include "CallInfo.hxx"
#include "CancelMsg.hxx"
#include "SipVia.hxx"
///
using namespace Vocal;


OpXferComplete::OpXferComplete()
{}


OpXferComplete::~OpXferComplete()
{}


///

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


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

    // Check 200 OK (TRANSFER)
    int status = msg->getStatusLine().getStatusCode();
    if ( status == 200 )
    {
        SipCSeq cseq = msg->getCSeq();
        if ( cseq.getMethod() == "TRANSFER" )
        {
            SipVia sipVia;
            sipVia.setprotoVersion( "2.0" );
            sipVia.setHost( Data( theSystem.gethostAddress() ) );
            sipVia.setPort( atoi( UaConfiguration::instance()->getLocalSipPort().c_str() ) );
            sipVia.setTransport( UaConfiguration::instance()->getSipTransport() );

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

            // Send BYE to transferee(previous contact)
            // Send BYE/CANCEL to transfer target(current contact)
            Sptr < Contact > contact;
            Sptr < ContactList > contacts = call->getContactList();
            ContactList::iterator iter = contacts->begin();
            while ( iter != contacts->end() )
            {
                contact = (*iter);
                assert( contact != 0 );
                int status = contact->getStatus();

                unsigned int cseq = contact->getCSeqNum();
                contact->setCSeqNum( ++cseq );

                if ( status == 200 )
                {
                    cpLog( LOG_DEBUG, "BYE callee" );
                    ByeMsg msg( contact->getStatusMsg() );
                    msg.flushViaList();
                    msg.setVia( sipVia, 0 );

                    SipCSeq sipCSeq = msg.getCSeq();
                    sipCSeq.setCSeq( cseq );
                    msg.setCSeq( sipCSeq );

                    sipEvent->getSipStack()->sendAsync( msg );
                }
                else if ( status < 200 && status >= 100 )
                {
                    cpLog( LOG_DEBUG, "CANCEL contact" );
                    CancelMsg msg( contact->getInviteMsg() );

                    SipCSeq sipCSeq = msg.getCSeq();
                    sipCSeq.setCSeq( cseq );
                    msg.setCSeq( sipCSeq );

                    sipEvent->getSipStack()->sendAsync( msg );
                }
                else if ( status < 100 )
                {
                    cpLog( LOG_DEBUG, "BYE caller" );
                    ByeMsg msg( contact->getInviteMsg() );
                    msg.flushViaList();
                    msg.setVia( sipVia, 0 );

                    SipCSeq sipCSeq = msg.getCSeq();
                    sipCSeq.setCSeq( cseq );
                    msg.setCSeq( sipCSeq );

                    sipEvent->getSipStack()->sendAsync( msg );
                }
                iter++;
            }
            // Free device
            UaDevice::instance()->setCallId( 0 );

            Sptr < UaStateMachine > stateMachine;
            stateMachine.dynamicCast( event->getCallInfo()->getFeature() );
            assert( stateMachine != 0 );

            cout << "Ready" << endl;
            return stateMachine->findState( "StateIdle" );
        }
    }
    return 0;
}