opinviteurl.cxx

SIP（Session Initiation Protocol）是由IETF定义

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
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 * 
 * 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
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 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
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static const char* const OpInviteUrl_cxx_Version =
    "$Id: OpInviteUrl.cxx,v 1.50 2002/11/19 20:32:52 sprajpat Exp $";

#include "global.h"
#include "InviteMsg.hxx"
#include "OpInviteUrl.hxx"
#include "UaDigitTimerEvent.hxx"
#include "DigitCollector.hxx"
#include "UaDevice.hxx"
#include "UaConfiguration.hxx"
#include "UaCallInfo.hxx"
#include "UaStateMachine.hxx"
#include "SdpHandler.hxx"
#include "SystemInfo.hxx"
#include "SipSdp.hxx"
#include "SipVia.hxx"

using namespace Vocal;


OpInviteUrl::OpInviteUrl()
{
}


OpInviteUrl::~OpInviteUrl()
{
}


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


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

    Sptr < UaDigitTimerEvent > timerEvent;
    timerEvent.dynamicCast( event );
    if ( timerEvent == 0 )
    {
        return 0;
    }

    Sptr < DigitCollector > digitCollector =
	UaDevice::instance()->getDigitCollector();
    assert( digitCollector != 0 );

    if ( !( digitCollector->isValidDial() ) )
    {
        return 0;
    }
    cpLog( LOG_DEBUG, "Dialing complete" );
    cout << endl;

    cpLog( LOG_DEBUG, "Request url %s", digitCollector->getUrl().c_str() );

    Sptr< SipUrl > toUrl;

    try
    {
        toUrl = new SipUrl( digitCollector->getUrl() );

        if ( dial_phone == digitCollector->getDialMethod() )
	{
 	    cpLog(LOG_DEBUG_STACK, "setting phone # %s", 
		  toUrl->getUserValue().logData());
            toUrl->setUserValue( toUrl->getUserValue(), dial_phone );
	}
    }
    catch ( SipUrlParserException& )
    {
        cpLog( LOG_ERR, "Invalid url %s", digitCollector->getUrl().c_str() );
        return 0;
    }

    assert( toUrl != 0 );

    string proxyServer = UaConfiguration::instance()->getProxyServer();
    cpLog(LOG_DEBUG, "proxyServer is %s", proxyServer.c_str() );

    if ( toUrl->getHost().length() <= 0 && proxyServer.length() )
    {
        NetworkAddress na( proxyServer );
        toUrl->setHost( na.getIpName() );
        if( na.getPort() > 0 )
        {
            toUrl->setPort( Data( na.getPort() ));
        }
    }

    //TODO clean up

    Sptr< SipUrl > proxyUrl;
    try
    {
        proxyUrl = new SipUrl( "sip:" + proxyServer );
    }
    catch ( SipUrlParserException& )
    {
        cpLog( LOG_ERR, "Invalid url %s", proxyServer.c_str() );
        return 0;
    }

    string sipPort = UaConfiguration::instance()->getLocalSipPort();
    InviteMsg msg( toUrl, atoi( sipPort.c_str() ) );

    msg.setCallId( *(UaDevice::instance()->getCallId()) );

    if ( proxyServer.length() > 0 )
    {
        SipRequestLine reqLine = msg.getRequestLine();
        Sptr< BaseUrl > baseUrl = reqLine.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< SipUrl > reqUrl;
	reqUrl.dynamicCast( baseUrl );
	assert( reqUrl != 0 );

        reqUrl->setHost( proxyUrl->getHost() );
        reqUrl->setPort( proxyUrl->getPort() );
        if(UaConfiguration::instance()->getSipTransport() == "TCP")
        {
            reqUrl->setTransportParam( Data("tcp"));
        }
        reqLine.setUrl( reqUrl );
        msg.setRequestLine( reqLine );
    }

    SipFrom from = msg.getFrom();
    from.setDisplayName( Data( UaConfiguration::instance()->getDisplayName()));
    Sptr< BaseUrl > baseUrl = from.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< SipUrl > fromUrl;
    fromUrl.dynamicCast( baseUrl );
    assert( fromUrl != 0 );

    fromUrl->setUserValue( Data( UaConfiguration::instance()->getUserName() ),
			   "phone" );
    from.setUrl( fromUrl );
    msg.setFrom( from );

    // Set transport in Via:
    SipVia via = msg.getVia();
    msg.removeVia();
    via.setTransport( UaConfiguration::instance()->getSipTransport() );
    msg.setVia( via );

    // Set Contact: header
    Sptr< SipUrl > myUrl = new SipUrl;
    myUrl->setUserValue( UaConfiguration::instance()->getUserName(), "phone" );
    myUrl->setHost( Data( theSystem.gethostAddress() ) );
    myUrl->setPort( UaConfiguration::instance()->getLocalSipPort() );
    if(UaConfiguration::instance()->getSipTransport() == "TCP")
    {
        myUrl->setTransportParam( Data("tcp"));
    }
    SipContact me;
    me.setUrl( myUrl );
    msg.setNumContact( 0 );    // Clear
    msg.setContact( me );

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

    addSdpToMsg(msg, 
		Data(UaConfiguration::instance()->getNetworkRtpRate()),
		UaDevice::instance()->getRtpPort());

    Sptr<SipSdp> sipSdp;
    sipSdp.dynamicCast ( msg.getContentData( 0 ) );

    if ( sipSdp != 0 )
    {
	call->setLocalSdp( new SipSdp( *sipSdp ) );
	int tmp;
	cpLog( LOG_DEBUG, "Local SDP:\n%s", 
	       call->getLocalSdp()->encodeBody(tmp).logData() );
    }


    // Save INVITE.  Needs to encode() to make sure length is correct

    call->setRingInvite( new InviteMsg( msg ) );

    // Send INVITE
    timerEvent->getSipStack()->sendAsync( msg );

    call->setContactMsg(msg);


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

    cout << endl
         << VTime::strftime("%y/%m/%d %H:%M:%S")
         << " *** Calling " /*<< toUrl->encode().logData()*/ << endl << endl;

    return stateMachine->findState( "StateTrying" );
}


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