/*

* Copyright (c) 2005-2006 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:  Parser for recipient's address

*

*/

#include "musenguriparser.h"

#include "mussettings.h"

#include "muslogger.h"

#include <uri8.h>

#include <charconv.h>

#include <utf.h>

#include <collate.h>

// ============================ MEMBER FUNCTIONS ===============================

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

// UTF7 is not working, since it converts + as +-

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

//

TMusEngUriParser::TMusEngUriParser( const TDesC16& aUri )

    :iUriType( ENotParsed )

    {

    TBuf8<KMaxUriLength> buf;

    if ( CnvUtfConverter::ConvertFromUnicodeToUtf8( buf, aUri ) == 0 )

        {

        iUri = buf;

        }

    else

        {

        iUri = KNullDesC8();

        }

    }

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

//

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

//

TMusEngUriParser::TMusEngUriType TMusEngUriParser::UriType()

    {

    return iUriType;

    }

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

//

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

//

HBufC8* TMusEngUriParser::GetUri8L()

    {

    MUS_LOG( "mus: [ENGINE]  -> TMusEngUriParser::GetUri8L()" )

    __ASSERT_ALWAYS( UriType() != TMusEngUriParser::ENotParsed, 

                     User::Leave( KErrNotReady ) ); 

    HBufC8* uri8 = iUri.AllocL();

    MUS_LOG( "mus: [ENGINE]  <- TMusEngUriParser::GetUri8L()" )

    return uri8;

    }

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

// 

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

//

HBufC16* TMusEngUriParser::GetUri16L( TBool aPrefix )

    {

    MUS_LOG( "mus: [ENGINE]  -> TMusEngUriParser::GetUri16L()" )

    __ASSERT_ALWAYS( UriType() != TMusEngUriParser::ENotParsed, 

                     User::Leave( KErrNotReady ) ); 

    HBufC16* uri16 = NULL;

    if ( aPrefix )

        {

        uri16 = CnvUtfConverter::ConvertToUnicodeFromUtf8L( iUri );

        }

    else

        {

        uri16 = CnvUtfConverter::ConvertToUnicodeFromUtf8L( 

                                    iUri.Mid( KMusEngTelPrefix().Length() ) );

        }

    MUS_LOG( "mus: [ENGINE]  <- TMusEngUriParser::GetUri16L()" )

    return uri16;

    }

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

//

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

//

void TMusEngUriParser::ParseUriL()

    {

    MUS_LOG( "mus: [ENGINE]  -> TMusEngUriParser::ParseUriL()" )

    if ( iUri.Find( KMusEngAtSign ) >= 0 ) // Sip uri

        {

        HandleSipUriL();

        }

    else if ( iUri.Find( KMusEngPlusSign ) >= 0 ) // Tel uri

        {

        HandleTelUriL();

        }

    else

        {

        // check for variant

        if ( MultimediaSharingSettings::OperatorVariantSettingL()

                != MusSettingsKeys::EOperatorSpecific )

            {// basic behaviour

            MUS_LOG( "mus: [ENGINE]  -> TMusEngUriParser::ParseUriL() \

                    normal behaviour" )

            User::Leave( KErrArgument );        

            }

        else

            { // variant behaviour(local tel uri)

            HandleLocalTelUriL();

            }

        }

    }

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

//

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

//

void TMusEngUriParser::HandleSipUriL()

    {

    if ( iUri.FindF( KMusEngTelPrefix() ) == 0 )

        {

        // SIP uri with prefix "tel:"

        User::Leave( KErrCorrupt );

        }

    else if ( iUri.FindF( KMusEngSipsPrefix ) == 0 )

        {

        // Secure SIP uri with prefix

        iUri.Replace( 0, KMusEngSipsPrefix().Length(), KMusEngSipsPrefix() );

        }

    else if ( iUri.FindF( KMusEngSipPrefix() ) != 0 )

        {

        // SIP uri without prefix

        if ( iUri.Length() + KMusEngSipPrefix().Length() <=

             KMaxUriLength )

            {

            iUri.Insert( 0, KMusEngSipPrefix() );

            }

        else

            {

            User::Leave( KErrCorrupt );

            }

        }

    else

        {

        // SIP uri with prefix

        iUri.Replace( 0, KMusEngSipPrefix().Length(), KMusEngSipPrefix() );

        }

    TUriParser8 parser;

    User::LeaveIfError( parser.Parse( iUri ) );

    User::LeaveIfError( parser.Validate() );

    iUriType = TMusEngUriParser::ESip;

    }

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

//

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

//

void TMusEngUriParser::HandleTelUriL()

    {

    iUri.TrimAll();

    if ( iUri.FindF( KMusEngTelPrefix() ) != 0 )

        {

        // Tel uri without prefix

        if ( iUri.Length() + KMusEngTelPrefix().Length() <=

             KMaxUriLength )

            {

            iUri.Insert( 0, KMusEngTelPrefix() );

            }

        else

            {

            User::Leave( KErrCorrupt );

            }

        }

    else

        {

        //Tel uri with prefix

        iUri.Replace( 0, KMusEngTelPrefix().Length(), KMusEngTelPrefix() );

        }

    TInt index = KMusEngTelPrefix().Length() + KMusEngPlusSign().Length();

    while ( index < iUri.Length() )

        {

        TChar character = iUri[ index ];

        if ( character.IsAlpha() )

            {

            User::Leave( KErrCorrupt ); // letters will not be accepted

            }

        else if ( !character.IsDigit() )

            {

            iUri.Delete( index, 1 ); // extra characters will be removed

            }

        else

            {

            ++index; // Valid tel URI so far

            }

        }

    iUriType = TMusEngUriParser::ETel;

    }

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

//

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

//

void TMusEngUriParser::HandleLocalTelUriL()

    {

    MUS_LOG( "mus: [ENGINE]  -> TMusEngUriParser::ParseUriL() \

            variant behaviour" )

    if ( iUri.FindF( KMusEngTelPrefix() ) != 0 )

        {

        // local tel uri without prefix

        if ( iUri.Length() + KMusEngTelPrefix().Length() <= KMaxUriLength )

            {

            iUri.Insert( 0, KMusEngTelPrefix() );

            }

        else

            {

            User::Leave( KErrCorrupt );

            }

        }

    else

        {

        //Tel uri with prefix

        iUri.Replace( 0, KMusEngTelPrefix().Length(), KMusEngTelPrefix() );

        }

    TInt index = KMusEngTelPrefix().Length();

    // check if all chars are digits

    while ( index < iUri.Length() )

        {

        TChar character = iUri[ index ];

        if ( !character.IsDigit() )

            {

            User::Leave( KErrCorrupt );

            }

        ++index;

        }

    iUriType = TMusEngUriParser::ETel;

    }

// End of file