/*

* Copyright (c) 2005-2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   SIP event handling class

*

*/

#include "musavacapabilitysipagent.h"

#include <e32svr.h>

#include <rconnmon.h>

#include <sipdialog.h>

#include <sipservertransaction.h>

#include <sipclienttransaction.h>

#include <sipdialogassocbase.h>

#include <sipinvitedialogassoc.h>

#include <sipregistrationbinding.h>

#include <siprefresh.h>

#include <sipstrings.h>

#include <sipstrconsts.h>

#include <sipresponseelements.h>

#include "mussettings.h"

#include "muslogger.h"

#include "musavacapabilityexchange.h"

#include "musavacapabilityquery.h"

#include "musavaterminal.h"

#include "musavasharedobject.h"

#include "musavasip.h"

#include "musavacapabilitycontext.h"

#include "mmusavacapabilityqueryobserver.h"

// --------------------------------------------------------------------------

// C++ constructor

// --------------------------------------------------------------------------

//

CMusAvaCapabilitySipAgent::CMusAvaCapabilitySipAgent( 

                            CMusAvaCapabilityExchange& aCapabilityExchange,

                            CMusAvaSharedObject& aSharedObject,

                            MMusAvaAvailabilityObserver& aAvaObserver)

    : iCapabilityExchange( aCapabilityExchange ),

      iSharedObj( aSharedObject ),

      iAvailabilityObserver( aAvaObserver )

    {

    }

// --------------------------------------------------------------------------

// Symbian two-phase constructor

// --------------------------------------------------------------------------

//

CMusAvaCapabilitySipAgent* CMusAvaCapabilitySipAgent::NewL( 

                            CMusAvaCapabilityExchange& aCapabilityExchange,

                            CMusAvaSharedObject& aSharedObject,

                            MMusAvaAvailabilityObserver& aAvaObserver)

    {

    MUS_LOG( "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent::NewL" )

    CMusAvaCapabilitySipAgent* self = 

        new (ELeave) CMusAvaCapabilitySipAgent( aCapabilityExchange, 

                                                aSharedObject,

                                                aAvaObserver );

    MUS_LOG( "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent::NewL" )

    return self;

    }

// --------------------------------------------------------------------------

// C++ destructor

// --------------------------------------------------------------------------

//

CMusAvaCapabilitySipAgent::~CMusAvaCapabilitySipAgent()

    {

    MUS_LOG( 

    "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent::~CMusAvaCapabilitySipAgent" )

    delete iSipConnection;

    MUS_LOG( 

    "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent::~CMusAvaCapabilitySipAgent" )

    }

// --------------------------------------------------------------------------

// CMusAvaCapabilitySipAgent::ExecuteCapabilityQueryL

// --------------------------------------------------------------------------

// 

void CMusAvaCapabilitySipAgent::ExecuteCapabilityQueryL( 

                                           CMusAvaCapability& aCapability, 

                                           const TDesC& aSipAddress )

    {

    MUS_LOG( 

    "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent::ExecuteCapabilityQueryL" )

    CSIPProfile* profile = iSharedObj.MusAvaSip().Profile();

    if ( !profile )

        {

        User::Leave( KErrNotFound );

        }

    // Fetching connection leaves if profile is not registered for some reason,

    // Thats what we want, forced creation of connection would activate PDP

    // context although there's no reason to do that without registration.

    CMusAvaCapabilityQuery* query = CMusAvaCapabilityQuery::NewL( 

                                        aCapability,

                                        *iSharedObj.MusAvaSip().ConnectionL( EFalse ), 

                                        *profile, 

                                        aSipAddress );

    CleanupStack::PushL( query );

    query->Terminal().ExecuteQueryL( query );

    CleanupStack::Pop( query );

    MUS_LOG( 

    "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent::ExecuteCapabilityQueryL" )

    }

// --------------------------------------------------------------------------

// From MSIPObserver, incoming SIP request outside dialog is handled here

// already.

// --------------------------------------------------------------------------

//

TInt CMusAvaCapabilitySipAgent::IncomingRequest( TUint32 /*aIapId*/,

                                    CSIPServerTransaction* /*aTransaction*/ )

    {

    MUS_LOG( 

        "mus: [MUSAVA]  -> CMusAvaCapabilitySipAgent::IncomingRequest()" )

    // If this method was called, there's no connection for this IAP

    MUS_LOG( "mus: [MUSAVA]  if this method was called,\

    	there's no capability" )

    MUS_LOG( 

        "mus: [MUSAVA]  <- CMusAvaCapabilitySipAgent::IncomingRequest()" )

    return KErrNotFound;

    }

// -------------------------------------------------------------------------

// SIP request timed-out and has been destroyed.

// -------------------------------------------------------------------------

//

TInt CMusAvaCapabilitySipAgent::TimedOut(

                                    CSIPServerTransaction& /*aTransaction*/ )

    {

    MUS_LOG( "mus: [MUSAVA]  -> CMusAvaCapabilitySipAgent::ConstructL()" )

    MUS_LOG( "mus: [MUSAVA]  <- CMusAvaCapabilitySipAgent::ConstructL()" )

    return KErrNotSupported;

    }

// --------------------------------------------------------------------------

//  A SIP request outside a dialog has been received from the network.

// --------------------------------------------------------------------------

//

TInt CMusAvaCapabilitySipAgent::IncomingRequest(

                                        CSIPServerTransaction* aTransaction )

    {

    MUS_LOG( "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent::IncomingRequest" )

    TInt retval = KErrNone;

    MusSettingsKeys::TOperatorVariant variantValue = MusSettingsKeys::EStandard;

    TRAPD( error, variantValue = 

                  MultimediaSharingSettings::OperatorVariantSettingL() );

    if( error )

    	{

         MUS_LOG("CMusAvaCapabilitySipAgent::IncomingRequest\

        		  Get OperatorVariantSettingL worng");

    	}

    if ( aTransaction->Type() == 

                        SIPStrings::StringF( SipStrConsts::EOptions ) )

        {  

        // Answer 200OK when CS call remain at Availability States

        //or at EMusAvaOptionNotAvailable State in operatorspecific mode

        if ( MMusAvaObserver::EMusAvaStatusNotExecuted <= 

             iAvailabilityObserver.AvailabilityPluginState()  

             ||( ( iAvailabilityObserver.AvailabilityPluginState() ==

              MMusAvaObserver::EMusAvaOptionNotAvailable ) 

              && ( variantValue == MusSettingsKeys::EOperatorSpecific  )))

            {

            retval = 

             iCapabilityExchange.QueryObserver().CapabilityQueryAnswered() ?

             KErrNotFound : KErrNone;

            if ( !retval )

                {

                MUS_LOG( "mus: [MUSAVA] Responding to OPTIONS" )

                iCapabilityExchange.QueryReceived( aTransaction );

                }

            }

        else

            {

            retval = KErrNotFound;

            }

        }

    else        

        {

        MUS_LOG( "mus: [MUSAVA] Default response" )

        TRAP_IGNORE( HandleIncomingRequestL( *aTransaction ) )

        delete aTransaction;

        MUS_LOG( "mus: [MUSAVA] Default response sent" )

        }

    MUS_LOG( "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent::IncomingRequest" )

    return retval;

    }

// --------------------------------------------------------------------------

// From MSIPConnectionObserver, incoming SIP request outside dialog is 

// handled here already.

// --------------------------------------------------------------------------

//

void CMusAvaCapabilitySipAgent::HandleIncomingRequestL( 

                                        CSIPServerTransaction& aTransaction )

    {

    MUS_LOG( 

    "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent::HandleIncomingRequestL" )

    RStringF phrase = 

                SIPStrings::StringF( SipStrConsts::EPhraseNotImplemented );

    CSIPResponseElements* response = 

        CSIPResponseElements::NewLC( KMUSAVASIPNotImplemented, phrase );

    aTransaction.SendResponseL( response );

    CleanupStack::Pop( response );

    MUS_LOG( 

    "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent::HandleIncomingRequestL" )

    }

// --------------------------------------------------------------------------

// CMusAvaCapabilitySipAgent::IncomingResponse

// --------------------------------------------------------------------------

//

TInt CMusAvaCapabilitySipAgent::IncomingResponse( 

                                        CSIPClientTransaction& aTransaction )

    {

    MUS_LOG( 

        "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent::IncomingResponse" )

    iCapabilityExchange.AnswerToQueryReceived( aTransaction );

    MUS_LOG( 

        "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent::IncomingResponse" )

    return KErrNone;

    }

// --------------------------------------------------------------------------

// CMusAvaCapabilitySipAgent::ErrorOccured

// --------------------------------------------------------------------------

//

TInt CMusAvaCapabilitySipAgent::ErrorOccured( TInt aError,

                                        CSIPTransactionBase& aTransaction )

    {

    MUS_LOG( "mus: [MUSAVA] -> CMusAvaCapabilitySipAgent:.ErrorOccured" )

    if ( aTransaction.IsSIPClientTransaction() )

        {

        MUS_LOG( "mus: [MUSAVA] Canceling query" )

        iCapabilityExchange.CancelQuery( 

                aError, 

                static_cast<CSIPClientTransaction&>( aTransaction ) );

        }

    else

        {

        MUS_LOG( "mus: [MUSAVA] Server transaction, nothing to do" )

        }

    MUS_LOG( "mus: [MUSAVA] <- CMusAvaCapabilitySipAgent:.ErrorOccured" )

    return KErrNone;

    }