/*

* Copyright (c) 2003 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: Class for imps digest.

*

*

*/

#include <hash.h>

#include <imcvcodc.h>

#include "impsdigestbytes.h"

#include "impskey.h"

#include "impsdataaccessor.h"

const TInt KDbLength = 200;     // 24

const TInt KAolDbLength = 200;  // 32

const TInt KMaxPwdLength = 50;

const TInt KMaxKeyLength = 50;

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

// ImpsDigestBytes::TImpsDigestBytes

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

//

TImpsDigestBytes::TImpsDigestBytes()

    {

    }

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

// ImpsDigestBytes::CreateDigestBytesL

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

//

void TImpsDigestBytes::CreateDigestBytesL ( MImpsDataAccessor* aAc,

                                            TImpsDigestSchema /*aSchema*/,

                                            const TDesC& aPassword,

                                            const TDesC8& aNonce )

    {

    TInt size = KMaxPwdLength + aNonce.Length();

    HBufC8* str = HBufC8::NewL( size );

    CleanupStack::PushL( str );  // <<< str

    TPtr8 strPtr = str->Des();

    strPtr.Append( aNonce );

    strPtr.Append( aPassword );

    CMD5* md5 = CMD5::NewL();

    CleanupStack::PushL( md5 );  // <<< md5

    TPtrC8 digestBytes = md5->Hash( *str );

    HBufC8* str2 = HBufC8::NewL( KDbLength );

    CleanupStack::PushL( str2 );  // <<< str2

    TPtr8 strPtr2 = str2->Des();

    TImCodecB64 codec;

    ( void )codec.Encode( digestBytes, strPtr2 );

    CImpsKey* myKey = CImpsKey::NewLC();  // <<< myKey

    myKey->AddL( CREATEKEY( EImpsKeySession, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyTransaction, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyTransactionContent, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyLogin_Request, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyDigestBytes, 0 ) );

    aAc->StoreDesc8L( myKey, strPtr2 );

    CleanupStack::PopAndDestroy( 4 );

    }

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

// ImpsDigestBytes::CreateAolDigestBytesL

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

//

void TImpsDigestBytes::CreateAolDigestBytesL ( MImpsDataAccessor* aAc,

                                               TImpsDigestSchema /*aSchema*/,

                                               const TDesC& aPassword,

                                               const TDesC8& aNonce,

                                               const TDesC& aClientId,

                                               HBufC* aKey1,

                                               HBufC* aKey2 )

    {

    // nonce, password, privateKey1

    TInt length = aNonce.Length() + KMaxPwdLength + KMaxKeyLength;

    HBufC8* str = HBufC8::NewL( length );

    CleanupStack::PushL( str );             // <<< str

    TPtr8 p1 = str->Des();

    p1.Append( aNonce );

    p1.Append( aPassword );

    p1.Append( aKey1->Des() );

    CMD5* md51 = CMD5::NewL();

    CleanupStack::PushL( md51 );             // <<< md51

    TPtrC8 bytes = md51->Hash( *str );

    HBufC8* digestBytes = HBufC8::NewL( KAolDbLength );

    CleanupStack::PushL( digestBytes );     // <<< digestBytes

    TPtr8 db = digestBytes->Des();

    db.Append( bytes );

    // nonce, normalized password, privateKey1

    HBufC8* pwd = HBufC8::NewL( KMaxPwdLength );

    CleanupStack::PushL( pwd );             // <<< pwd

    TPtr8 passw = pwd->Des();

    for ( TInt j = 0; j < aPassword.Length(); j++ )

        {

        passw.Append( TChar( aPassword[j] ) );

        }

    passw.TrimAll();

    for ( TInt k = 0; k < passw.Length(); k++ )

        {

        TChar in = passw[k];

        if ( in.IsSpace() )

            passw.Delete( k, 1 );

        }

    passw.LowerCase();

    HBufC8* str2 = HBufC8::NewL( length );

    CleanupStack::PushL( str2 );            // <<< str2

    TPtr8 p2 = str2->Des();

    p2.Append( aNonce );

    p2.Append( passw );

    p2.Append( aKey1->Des() );

    CMD5* md52 = CMD5::NewL();

    CleanupStack::PushL( md52 );             // <<< md52

    TPtrC8 bytes2 = md52->Hash( *str2 );

    db.Append( bytes2 );

    // nonce, clientId, privateKey2

    length = aNonce.Length() + KMaxPwdLength + KMaxKeyLength;

    HBufC8* str3 = HBufC8::NewL( length );

    CleanupStack::PushL( str3 );            // <<< str3

    TPtr8 p3 = str3->Des();

    p3.Append( aNonce );

    p3.Append( aClientId );

    p3.Append( aKey2->Des() );

    CMD5* md53 = CMD5::NewL();

    CleanupStack::PushL( md53 );             // <<< md53

    TPtrC8 bytes3 = md53->Hash( *str3 );

    db.Append( bytes3 );

    HBufC8* hex = HBufC8::NewL( KAolDbLength );

    CleanupStack::PushL( hex );     // <<< hex

    TPtr8 hexPtr = hex->Des();

    for ( TInt i = 0; i < db.Length(); i++ )

        {

        TChar in = db[i];

        hexPtr.AppendNumFixedWidth( in, EHex, 2 );

        }

    CImpsKey* myKey = CImpsKey::NewLC();    // <<< myKey

    myKey->AddL( CREATEKEY( EImpsKeySession, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyTransaction, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyTransactionContent, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyLogin_Request, 0 ) );

    myKey->AddL( CREATEKEY( EImpsKeyDigestBytes, 0 ) );

    aAc->StoreDesc8L( myKey, hexPtr );

    CleanupStack::PopAndDestroy( 10 );

    }

//  End of File