/*

* Copyright (c) 2009-2010 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 handler for VoIP XML processor

*

*/

#include <e32cmn.h>

#include <coecntrl.h>

#include <sipmanagedprofile.h>

#include <sipmanagedprofileregistry.h>

#include <sysutil.h>

#include <wlaninternalpskeys.h>

#include <pathinfo.h>

#include <escapeutils.h>

#include "voipxmlutils.h"

#include "voipxmlsiphandler.h"

#include "voipxmlprocessorlogger.h"

#include "voipxmlprocessordefaults.h"

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

// CVoipXmlSipHandler::CVoipXmlSipHandler

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

//

CVoipXmlSipHandler::CVoipXmlSipHandler()

    {

    }

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

// CVoipXmlSipHandler::NewL

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

//

CVoipXmlSipHandler* CVoipXmlSipHandler::NewL()

    {

    CVoipXmlSipHandler* self = new ( ELeave ) CVoipXmlSipHandler;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CVoipXmlSipHandler::ConstructL

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

//

void CVoipXmlSipHandler::ConstructL()

    {

    DBG_PRINT( "CVoipXmlSipHandler::ConstructL begin" );

    // SIP Managed Profile Registry.

    iRegistry = CSIPManagedProfileRegistry::NewL( *this );

    // Create an empty SIP profile in which all settings will be set.

    iProfileType.iSIPProfileClass = TSIPProfileTypeInfo::EInternet;

    iProfileType.iSIPProfileName.Copy( KIetf() );

    iProfile = iRegistry->CreateL( iProfileType );

    iProxyUri           = HBufC8::NewL( KMaxNodeValueLength );

    iProxyTransport     = EAutomatic;

    iProxyPort          = KErrNotFound;

    iLr                 = EFalse;

    iRegistrarUri       = HBufC8::NewL( KMaxNodeValueLength );

    iRegistrarTransport = EAutomatic;

    iRegistrarPort      = KErrNotFound;

    const TInt ipTosShift( 2 );

    const TUint32 tosBits( KDefaultSigQos << ipTosShift );

    iProfile->SetParameter( KSIPSoIpTOS, tosBits );

    DBG_PRINT( "CVoipXmlSipHandler::ConstructL end" );

    }

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

// CVoipXmlSipHandler::~CVoipXmlSipHandler

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

//

CVoipXmlSipHandler::~CVoipXmlSipHandler()

    {

    delete iProfile;

    delete iRegistry;

    delete iProxyUri;

    delete iRegistrarUri;

    }

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

// Sets SIP setting.

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

//

void CVoipXmlSipHandler::SetSetting( TInt aType, TInt aParam, 

    const TDesC8& aValue )

    {

    // Ignore too long descriptors.

    if ( KMaxNodeValueLength < aValue.Length() )

        {

        return;

        }

    switch ( aParam )

        {

        case EName:

            {

            TRAPD( err, CreateProviderNameL( aValue ) );

            if ( KErrNone == err )

                {

                iSettingsSet = ETrue;

                }

            break;

            }

        case ESignalingQos:

            {

            // We need to do bitshifting on the IP TOS, because it's the 

            // upper 6 bits that are set and settings provide us the IP TOS

            // as the lower 6 bits.

            // The lower 2 bits are reserver for explicit congestion

            // notification. 

            // See also more from:

            // Symbian Developer Library 

            //    => in_sock.h Global variables

            //       => KSoIpTOS

            const TInt ipTosShift( 2 );

            TInt value( KErrNotFound );

            VoipXmlUtils::Des8ToInt( aValue, value );

            if ( 0 <= value )

                {

                const TUint32 tosBits( value << ipTosShift );

                iProfile->SetParameter( KSIPSoIpTOS, tosBits );

                iSettingsSet = ETrue;

                }

            break;

            }

        case EType:

            {

            TBuf8<KMaxNodeValueLength> value;

            value.Copy( aValue );

            value.UpperCase();

            if ( 0 == value.Compare( KIms() ) )

                {

                iProfileType.iSIPProfileClass = TSIPProfileTypeInfo::EIms;

                value.LowerCase();

                iProfileType.iSIPProfileName.Copy( value );

                iProfile->SetType( iProfileType );

                iSettingsSet = ETrue;

                }

            else if ( 0 == value.Compare( KIetf() ) )

                {

                iProfileType.iSIPProfileClass = 

                    TSIPProfileTypeInfo::EInternet;

                iProfileType.iSIPProfileName.Copy( value );

                iProfile->SetType( iProfileType );

                iSettingsSet = ETrue;

                }

            else

                {

                iProfileType.iSIPProfileClass = TSIPProfileTypeInfo::EOther;

                iProfileType.iSIPProfileName.Copy( aValue );

                iProfile->SetType( iProfileType );

                iSettingsSet = ETrue;

                }

            break;

            }

        case EPublicUserId:

            {

            TBuf8<KMaxNodeValueLength> value;

            value.Copy( aValue );

            TRAPD( err, ModifyPuidL( value ) );

            if ( KErrNone == err )

                {

                iProfile->SetParameter( KSIPUserAor, value );

                iSettingsSet = ETrue;

                }

            break;

            }

        case ESignalCompression:

            {

            TInt value;

            if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, value ) )

                {

                iProfile->SetParameter( KSIPSigComp, (TBool)value );

                iSettingsSet = ETrue;

                }

            break;

            }

        case ESecurityNegotiation:

            {

            TInt value;

            if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, value ) )

                {

                iProfile->SetParameter( 

                    KSIPSecurityNegotiation, (TBool)value );

                iSettingsSet = ETrue;

                }

            break;

            }

        case EProfileLock:

            {

            TInt value;

            if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, value ) )

                {

                iProfile->SetParameter( KSIPProfileLocked, (TBool)value );

                iSettingsSet = ETrue;

                }

            break;

            }

        case EAutoRegistration:

            {

            TInt value;

            if ( KErrNone == VoipXmlUtils::Des8ToInt( aValue, value ) )

                {

                iProfile->SetParameter( KSIPAutoRegistration, (TBool)value );

                iSettingsSet = ETrue;

                }

            break;

            }

        case EUri:

            {

            TBuf8<KMaxNodeValueLength> tempBuf( KNullDesC8 );

            if ( 0 != aValue.Find( KSip() ) &&

                0 != aValue.Find( KSips() ) )

                {

                tempBuf.Copy( KSip() );

                }

            tempBuf.Append( aValue );

            //lint -e{960} No need for else statement here

            if ( EProxy == aType )

                {

                iProxyUri->Des().Copy( tempBuf );

                iSettingsSet = ETrue;

                }

            else if ( ERegistrar == aType )

                {

                iRegistrarUri->Des().Copy( tempBuf );

                iSettingsSet = ETrue;

                }

            break;

            }

        case ETransport:

            {

            //lint -e{960} No need for else statement here

            if ( EProxy == aType )

                {

                iProxyTransport = ValidateTransport( aValue );

                iSettingsSet = ETrue;

                }

            else if ( ERegistrar == aType )

                {

                iRegistrarTransport = ValidateTransport( aValue );

                iSettingsSet = ETrue;

                }

            break;

            }

        case EPort:

            {

            TInt value;

            TInt err = VoipXmlUtils::Des8ToInt( aValue, value );

            //lint -e{960} No need for else statement here

            if ( EProxy == aType && KErrNone == err )

                {

                iProxyPort = value;

                iSettingsSet = ETrue;

                }

            else if ( ERegistrar == aType && KErrNone == err )

                {

                iRegistrarPort = value;

                iSettingsSet = ETrue;

                }

            break;

            }

        case ELooseRouting:

            {

            TInt value;

            if ( EProxy == aType && 

                KErrNone == VoipXmlUtils::Des8ToInt( aValue, value ) )

                {

                iLr = (TBool)value;

                iSettingsSet = ETrue;

                }

            break;

            }

        case EUsername:

            {

            //lint -e{960} No need for else statement here

            if ( EProxy == aType )

                {

                if ( TSIPProfileTypeInfo::EInternet == 

                    iProfileType.iSIPProfileClass )

                    {

                    iProfile->SetParameter( KSIPOutboundProxy, 

                        KSIPDigestUserName, aValue );

                    iSettingsSet = ETrue;

                    }

                else

                    {

                    iProfile->SetParameter( KSIPPrivateIdentity, aValue );

                    iSettingsSet = ETrue;

                    }

                }

            else if ( ERegistrar == aType )

                {

                if ( TSIPProfileTypeInfo::EInternet == 

                    iProfileType.iSIPProfileClass )

                    {

                    iProfile->SetParameter( KSIPRegistrar, KSIPDigestUserName,

                        aValue );

                    iSettingsSet = ETrue;

                    }

                else

                    {

                    iProfile->SetParameter( KSIPPrivateIdentity, aValue );

                    iSettingsSet = ETrue;

                    }

                }

            break;

            }

        case EPassword:

            {

            //lint -e{960} No need for else statement here

            if ( EProxy == aType )

                {

                iProfile->SetParameter( KSIPOutboundProxy, KSIPDigestPassword,

                    aValue );

                iSettingsSet = ETrue;

                }

            else if ( ERegistrar == aType )

                {

                iProfile->SetParameter( KSIPRegistrar, KSIPDigestPassword,

                    aValue );

                iSettingsSet = ETrue;

                }

            break;

            }

        default:

            break;

        }

    }

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

// Stores settings to SIP managed profile registry.

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

//

TInt CVoipXmlSipHandler::StoreSettings()

    {

    if ( !iSettingsSet )

        {

        // No settings to be stored => method not supported.

        return KErrNotSupported;

        }

    TBuf8<KMaxNodeValueLength> tempBuf( KNullDesC8 );

    // ==============================

    // Set components to proxy URI.

    // ==============================

    //

    if ( KErrNotFound != iProxyPort )

        {

        tempBuf.Copy( KColon() );

        tempBuf.AppendNum( iProxyPort );

        }

    //lint -e{960} No need for else statement here

    if ( EUdp == iProxyTransport )

        {

        tempBuf.Append( KTransport() );

        tempBuf.Append( KUdp() );

        }

    else if ( ETcp == iProxyTransport )

        {

        tempBuf.Append( KTransport() );

        tempBuf.Append( KTcp() );

        }

    if ( iLr )

        {

        tempBuf.Append( KLr() );

        }

    if ( iProxyUri->Des().MaxLength() >= 

        ( iProxyUri->Des().Length() + tempBuf.Length() ) )

        {

        iProxyUri->Des().Append( tempBuf );

        }

    iProfile->SetParameter( KSIPOutboundProxy, KSIPServerAddress, 

        iProxyUri->Des() );

    // ==============================

    // Set components to registrar URI.

    // ==============================

    //

    tempBuf.Zero();

    if ( KErrNotFound != iRegistrarPort )

        {

        tempBuf.Copy( KColon() );

        tempBuf.AppendNum( iRegistrarPort );

        }

    //lint -e{960} No need for else statement here

    if ( EUdp == iRegistrarTransport )

        {

        tempBuf.Append( KTransport() );

        tempBuf.Append( KUdp() );

        }

    else if ( ETcp == iRegistrarTransport )

        {

        tempBuf.Append( KTransport() );

        tempBuf.Append( KTcp() );

        }

    if ( iRegistrarUri->Des().MaxLength() >= 

        ( iRegistrarUri->Des().Length() + tempBuf.Length() ) )

        {

        iRegistrarUri->Des().Append( tempBuf );

        }

    iProfile->SetParameter( KSIPRegistrar, KSIPServerAddress, 

        iRegistrarUri->Des() );

    TRAPD( err, iRegistry->SaveL( *iProfile ) );

    if ( KErrNone != err )

        {

        // No need for specifying what went wrong because paramhandler

        // is only intrested in KErrNotSupported, KErrCompletion and KErrNone.

        err = KErrCompletion;

        }

    // Store SIP settings ID for later use.

    iProfile->GetParameter( KSIPProfileId, iProfileId );

    return err;

    }

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

// Returns the profile ID if the profile saved in StoreSettings.

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

//

TUint32 CVoipXmlSipHandler::SettingsId()

    {

    return iProfileId;

    }

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

// Saves linkage information.

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

//

void CVoipXmlSipHandler::LinkSettings( TInt aType, TUint32 aSettingsId )

    {

    if ( EDestination == aType && aSettingsId )

        {

        iProfile->SetParameter( KSIPSnapId, aSettingsId );

        }

    }

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

// Finalizes settings saving.

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

//

TInt CVoipXmlSipHandler::FinalizeSettings()

    {

    TRAPD( err, iRegistry->SaveL( *iProfile ) );

    if ( KErrNone != err )

        {

        // ParamHandler is only intrested in KErrNone and KErrCompletion.

        err = KErrCompletion;

        }

    return err;

    }

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

// From class MSIPProfileRegistryObserver.

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

//

void CVoipXmlSipHandler::ProfileRegistryEventOccurred( 

    TUint32 /*aSIPProfileId*/, TEvent /*aEvent*/ )

    {

    }

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

// From class MSIPProfileRegistryObserver. 

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

//

void CVoipXmlSipHandler::ProfileRegistryErrorOccurred( 

    TUint32 /*aSIPProfileId*/, TInt /*aError*/ )

    {

    }

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

// CVoipXmlSipHandler::CreateProviderNameL

// Checks if duplicate named SIP profiles. Renames if same.

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

//

void CVoipXmlSipHandler::CreateProviderNameL( const TDesC8& aName )

    {

    DBG_PRINT( "CVoipXmlSipHandler::CreateProviderNameL begin" );

    RPointerArray<CSIPProfile> profiles;

    CleanupResetAndDestroyL( profiles ); // CS:1

    // Get all profiles based on profile types.

    iRegistry->ProfilesL( profiles );

    const TInt profileCount = profiles.Count();

    // Go through loaded profiles and check for name duplicates.

    HBufC8* name = HBufC8::NewLC( KMaxNodeNameLength ); // CS:2

    name->Des().Copy( aName );

    TUint i( 1 ); // Add number to the name if name already in use.

    const TInt count( profiles.Count() );

    for ( TInt counter = 0; counter < count; counter++ )

        {

        CSIPManagedProfile* profile = 

            static_cast<CSIPManagedProfile*>( profiles[counter] );

        const TDesC8* existingName;

        profile->GetParameter( KSIPProviderName, existingName );

        if ( 0 == existingName->Compare( *name ) )

            {

            name->Des().Copy( aName );

            name->Des().Append( KOpenParenthesis8() );

            name->Des().AppendNum( i );

            name->Des().Append( KClosedParenthesis8() );  

            counter = 0;

            i++;