opxfertargetinviteok.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 $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */
static const char* const OpXferTargetInviteOk_cxx_Version =
    "$Id$";


#include "global.h"
#include "OpXferTargetInviteOk.hxx"
#include "UaCallInfo.hxx"
#include "UaStateMachine.hxx"

#include "SipEvent.hxx"
#include "StatusMsg.hxx"
#include "AckMsg.hxx"
#include "CancelMsg.hxx"
#include "SipTransceiver.hxx"

///
using namespace Vocal;


OpXferTargetInviteOk::OpXferTargetInviteOk()
{}


OpXferTargetInviteOk::~OpXferTargetInviteOk()
{}


///

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


///
const Sptr < State >
OpXferTargetInviteOk::process( const Sptr < SipProxyEvent > event )
{
    cpLog( LOG_DEBUG, "OpXferTargetInviteOk 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" )
        {
            // INVITE transfer target transaction
            int status = msg->getStatusLine().getStatusCode();

            if ( status >= 200 )
            {
                cpLog( LOG_DEBUG, "ACK for INVITE to transfer target" );
                AckMsg ack( *msg );
                sipEvent->getSipStack()->sendAsync( ack );
            }
            if ( status > 200 )
            {
                cout << "Transfer Target INVITE status: " << status << endl;
                cpLog( LOG_DEBUG, "INVITE transfer target failed status %d",
                       status );

                if ( contact->getStatus() < 200 )
                {
                    cpLog( LOG_DEBUG, "CANCEL transfer target hold" );
                    InviteMsg inviteMsg = contact->getInviteMsg();
                    CancelMsg cancel( inviteMsg );
                    sipEvent->getSipStack()->sendAsync( cancel );
                }

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

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