/*

* Copyright (c) 2003-2008 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:  Skin server utils class.

*

*/

// INCLUDE FILES

#include <f32file.h>

#include <bautils.h>

#include <e32math.h>

#include <DRMRights.h>

#include <DRMHelper.h>

#include <caf/rightsinfo.h>

#include "AknsSrvUtils.h"

#include "AknsSrv.h"

#include "AknsSrvDescriptorFileLayout.h"

#include <AknsSkinUID.h>

#include "AknsDriveMaster.h"

#include "AknsDebug.h"

#include <centralrepository.h>

#include <AknSkinsInternalCRKeys.h>

#include <AknsConstants.h>

// Maximum lenght of uri.

const TInt KMaxContentUriLength = 256;

// Length of extension (including preceding dot).

const TInt KExtensionLength = 4;

// Mif-file extension

_LIT( KAknsSkinSrvMifFileExt, ".mif" );

const TInt KAknsDummySkinPkgID = 0x70000000;

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

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

// AknsSrvUtils::CheckAHOverrideFlag

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

//

TBool AknsSrvUtils::CheckAHOverrideFlagL( CAknsSrvFileBuffer& aFile )

    {

    TUint8 ahflag = GetUInt8L( aFile, EAknsSrvDFOSkinSkinType );

    if ( (ahflag&2) !=0 )

        {

        return ETrue;

        }

    else

        {

        return EFalse;

        }

    }

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

// AknsSrvUtils::SearchSkinsL

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

//

void AknsSrvUtils::SearchSkinsL(

    RFs& aRfs, const TDesC& aBasePath, const TDesC& aDirName,

    CDesCArray* aSkinFiles )

    {

    SearchSkinsL( aRfs, aBasePath, aDirName, KSKNPostFix, aSkinFiles );

    }

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

// AknsSrvUtils::SearchDirectoriesL

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

//

void AknsSrvUtils::SearchDirectoriesL(

    RFs& aRFs, const TDesC& aPath, CDesCArray* aSkinFiles )

    {

    SearchDirectoriesL( aRFs, aPath, KSKNPostFix, aSkinFiles );

    }

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

// AknsSrvUtils::GetSkinPIDL

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

//

TAknsPkgID AknsSrvUtils::GetSkinPIDL(CAknsSrvFileBuffer& aFile)

    {

    TInt number = GetInt32L( aFile, EAknsSrvDFOSkinSkinPID1 );

    TInt timestamp = GetInt32L( aFile, EAknsSrvDFOSkinSkinPID2 );

    TAknsPkgID pid;

    pid.Set( timestamp, number );

    return pid;

    }

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

// AknsSrvUtils::BuildSkinInfoPackagesL

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

//

void AknsSrvUtils::BuildSkinInfoPackagesL(

    CArrayPtr<TAknsSrvSkinInfoPkg>* aSkinInfo, CDesCArray* aSkinArray,

    RFs& aFileSession, CDRMHelper& aDrmHelper )

    {

    AKNS_TRACE_INFO("AknsSrvUtils::BuildSkinInfoPackagesL BEGIN" );

    TAknsSrvSkinInfoPkg* infopkg = NULL;

    // Read default skin PID.

    CRepository* repository = CRepository::NewLC( KCRUidPersonalisation );

    TInt value = 0;

    TBuf<32> buf;

    TAknsPkgID defaultSkin = KAknsNullPkgID;

    TInt err = repository->Get( KPslnDefaultSkinUID, buf );

    if ( err != KErrNone || buf.Length() < 8 )

        {

        err = repository->Get( KPslnDefaultSkinID, value );

        if( err == KErrNone )

            {

            defaultSkin.Set( TUid::Uid( value ) );

            }

        }

    else

        {

        TInt bufLength = buf.Length();

        // If its 8 characters long, its UID.

        // PIDs are 16 characters (8 ID + 8 timestamp)

        if ( bufLength == 8 )

            {

            // Let's try to set it directly as Hex.

            TLex hexLex( buf );

            TUint pid;

            err = hexLex.Val( pid, EHex );

            if (!err)

                {

                // UIDs have no timestamp.

                defaultSkin.Set( 0, pid );

                }

            }

        else

            {

            // The skin PID is set in CenRep in format <PID1><PID2> and

            // values are in hex.

            TLex lex ( buf.Left( 8 ) );

            TLex lex2 ( buf.Right( 8 ) );

            TUint pid;

            TUint timeStamp;

            err = lex.Val( pid, EHex );

            if ( !err )

                {

                err = lex2.Val( timeStamp, EHex );

                }

            if ( !err )

                {

                defaultSkin.Set( timeStamp, pid );

                }

            }        

        }

    CleanupStack::PopAndDestroy( repository );  

    for( TInt skincount=0; skincount<aSkinArray->Count(); skincount++ )

        {

        TRAPD( err2, (infopkg=BuildSkinInfoPackageL(

            aSkinArray->MdcaPoint(skincount), aDrmHelper, aFileSession ) ) );

        TBool fabricated = EFalse;

        if( err2 != KErrNone )

            {

            // Fabricate skin information, since the array must contain

            // items for broken skins as well (to ensure that they can

            // be deleted).

            TInt index = aSkinArray->MdcaPoint(skincount).LocateReverse('\\');

            TPtrC filedir;

            filedir.Set( aSkinArray->MdcaPoint(skincount).Left(index) );

            TPtrC filename;

            filename.Set( aSkinArray->MdcaPoint(skincount).Mid(index+1) );

            infopkg = new (ELeave) TAknsSrvSkinInfoPkg;

            infopkg->iPID = KAknsNullPkgID;

            infopkg->iColorSchemePID = KAknsPIDColorBlue;

            infopkg->iSkinDirectoryBuf = filedir;

            infopkg->iSkinIniFileDirectoryBuf = filedir;

            infopkg->iSkinNameBuf = filename;

            infopkg->iIdleStateWallPaperImageName = KNullDesC;

            infopkg->iFullName = KNullDesC;

            infopkg->iIsCopyable = EFalse;

            infopkg->iIsDeletable = ETrue;

            infopkg->iIdleBgImageIndex = 0;

            infopkg->iProtectionType = EAknsSrvNoProtection;

            infopkg->iCorrupted = ETrue;

            fabricated = ETrue;

            }

        CleanupStack::PushL( infopkg );

        TBool mifFile = EFalse;

        TBool alreadyFound = EFalse;

        if( infopkg )

            {

            if ( infopkg->iFullName.Length() > 0 )

                {

                SkinHasMifFileL( mifFile, aFileSession, infopkg->iFullName );

                }

            // If no mif-file, assume that skin is corrupted.

            if ( !mifFile )

                {

                infopkg->iCorrupted = ETrue;

                }

            for( TInt i=0; i<aSkinInfo->Count(); i++ )

                {

                if( aSkinInfo->At(i)->iPID == infopkg->iPID )

                    {

                    alreadyFound = ETrue;

                    break;

                    }

                }

            }

        if( infopkg && ((!alreadyFound) || fabricated) )

            {

            // Add all but default skin.

            if ( infopkg->iPID != KAknsPIDS60DefaultSkin )

                {

                aSkinInfo->AppendL(infopkg);

                CleanupStack::Pop( infopkg );

                }

            // If default skin ID has not been changed, show S60 default skin.

            else if ( defaultSkin == KAknsNullPkgID &&

                      infopkg->iPID == KAknsPIDS60DefaultSkin )

                {

                aSkinInfo->AppendL(infopkg);

                CleanupStack::Pop( infopkg );

                }

            else

                {

                CleanupStack::PopAndDestroy(); //infopkg

                }

            }

        else

            {

            CleanupStack::PopAndDestroy(); // infopkg

            }

        }

    AKNS_TRACE_INFO("AknsSrvUtils::BuildSkinInfoPackagesL END" );

    }

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

// AknsSrvUtils::IsDrmProtectedL

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

//

TBool AknsSrvUtils::IsDrmProtectedL(const TDesC& aFilename)

    {

    TBool isProtected(EFalse);

    TInt value = KErrNone;

    CContent* content = CContent::NewLC( aFilename );

    User::LeaveIfError( content->GetAttribute( EIsProtected, value ) );

    if ( value )

        {

        isProtected = ETrue;

        }

    CleanupStack::PopAndDestroy( content );

    return isProtected;

    }

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

// AknsSrvUtils::IsDrmProtectedL

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

//

TBool AknsSrvUtils::IsDrmProtectedL(RFile& aFileHandle)

    {

    TBool isProtected(EFalse);

    TInt value = KErrNone;

    CContent* content = CContent::NewLC( aFileHandle );

    User::LeaveIfError( content->GetAttribute( EIsProtected, value ) );

    if ( value )

        {

        isProtected = ETrue;

        }

    CleanupStack::PopAndDestroy( content );

    return isProtected;

    }

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

// AknsSrvUtils::BuildSkinInfoPackageL

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

//

TAknsSrvSkinInfoPkg* AknsSrvUtils::BuildSkinInfoPackageL(

    const TDesC& aFilename, CDRMHelper& aDrmHelper, RFs& aFileSession )

    {

    TAknsSrvSkinInfoPkg* infopkg = NULL;

    TAknsSkinSrvSkinProtectionType protectionType = EAknsSrvNoProtection;

    TBool isProtected(EFalse);

    TChar driveLetter = aFilename[0];

    TInt driveNumber;

    User::LeaveIfError(aFileSession.CharToDrive(driveLetter, driveNumber));

    User::LeaveIfError(aFileSession.ShareProtected());

    TInt err = aFileSession.CreatePrivatePath(driveNumber);

    if (err!=KErrNone && err!=KErrAlreadyExists)

        {

        User::Leave(err);

        }

    User::LeaveIfError(aFileSession.SetSessionToPrivate(driveNumber));

    RFile file;

    User::LeaveIfError(file.Open(aFileSession,aFilename, EFileRead | EFileShareReadersOnly));

    CleanupClosePushL(file); // 1

    // Files on ROM are not DRM protected

    if (aFilename[0] != 'Z')

        {

        isProtected = IsDrmProtectedL(file);

        if (isProtected)

            {

            // If protection is indicated, by default set it on.

            protectionType = EAknsSrvProtected;

            TBool expired = EFalse;

            TBool sendAllowed = EFalse; //not needed

            CDRMHelperRightsConstraints* playDrmHlpCons = NULL;

            CDRMHelperRightsConstraints* dispDrmHlpCons = NULL;

            CDRMHelperRightsConstraints* execDrmHlpCons = NULL;

            CDRMHelperRightsConstraints* printDrmHlpCons = NULL;

            TRAPD( drmErr, aDrmHelper.GetRightsDetailsL(

                aFilename, ContentAccess::EView, expired, sendAllowed,

                playDrmHlpCons, dispDrmHlpCons, execDrmHlpCons, printDrmHlpCons ) );

            // DrmHelper leaves if the content is protected, but there are rights.

            if ( drmErr == KErrCANoRights )

                {

                protectionType = EAknsSrvNoRights;

                }

            else if ( drmErr == KErrArgument )

                {

                protectionType = EAknsSrvNoProtection;

                }

            // Delete not needed constraints.

            delete printDrmHlpCons;

            delete execDrmHlpCons;

            delete playDrmHlpCons;

            CleanupStack::PushL( dispDrmHlpCons );

            // Check expiration. If expired and no rights => expired.

            if ( expired && !dispDrmHlpCons )

                {

                protectionType = EAknsSrvExpiredRights;

                }

            // If expired, but there are rights => future rights.

            if ( expired && dispDrmHlpCons )

                {

                protectionType = EAknsSrvFutureRights;

                }

            if ( dispDrmHlpCons )

                {

                TUint32 counter = 0;

                TUint32 origCounter = 0;

                TRAP( drmErr, dispDrmHlpCons->GetCountersL( counter, origCounter ) );

                // No counters

                if ( drmErr == KErrNotFound )

                    {

                    protectionType = EAknsSrvProtected;

                    }

                else

                    {

                    protectionType = EAknsSrvCountBased;

                    }

                }

            CleanupStack::PopAndDestroy( dispDrmHlpCons );

            }

        else

            {

            protectionType = EAknsSrvNoProtection;

            }

        }

    CAknsSrvFileBuffer* fileBuf = NULL;

    if (!isProtected) // The file is not protected, open it normally

        {

        fileBuf = CAknsSrvFileBuffer::NewL( file );

        CleanupStack::PushL( fileBuf ); // 2

        }

    else // The file is protected, open it ignoring the rights..

        {

        TInt error = aDrmHelper.ConsumeFile2(

            file, EInstall, CDRMHelper::EStart );

        if ( error == KErrCANoRights ||

             protectionType == EAknsSrvNoRights ||

             protectionType == EAknsSrvExpiredRights )

            {

            // Rights object deleted, bake up something

            // sensible

            TInt index = aFilename.LocateReverse('\\');

            TPtrC filedir;

            filedir.Set( aFilename.Left(index) );

            TPtrC filename;

            filename.Set( aFilename.Mid(index+1) );

            infopkg = new (ELeave) TAknsSrvSkinInfoPkg;

            //Create a Random id for DRM Expired Skin

            TAknsPkgID dummyPID  = { KAknsDummySkinPkgID + (Math::Random()>>4), 0 };

            infopkg->iPID = dummyPID;

            infopkg->iColorSchemePID = KAknsPIDColorBlue;

            infopkg->iSkinDirectoryBuf = filedir;

            infopkg->iSkinIniFileDirectoryBuf = filedir;

            infopkg->iSkinNameBuf = filename;

            infopkg->iIdleStateWallPaperImageName = KNullDesC;

            infopkg->iFullName = aFilename;

            infopkg->iIsCopyable = EFalse;

            infopkg->iIsDeletable = ETrue;

            infopkg->iIdleBgImageIndex = 0;

            infopkg->iProtectionType = protectionType;

            infopkg->iCorrupted = EFalse;

            CleanupStack::PopAndDestroy( ); // file

            return infopkg;

            }

        else if ( error != KErrNone )

            {

            User::Leave(KErrCorrupt);

            }

        fileBuf = CAknsSrvFileBuffer::NewL( file);

        CleanupStack::PushL( fileBuf ); // 2

        }

    if( CheckAHOverrideFlagL( *fileBuf ) )

        {

        // Do not build package for A&H override skins

        CleanupStack::PopAndDestroy(2); //fileBuf, file

        return NULL;

        }

    TAknsPkgID pid;

    pid.Set( GetSkinPIDL( *fileBuf ) );

    TInt index = aFilename.LocateReverse('\\');

    TPtrC filedir;

    filedir.Set( aFilename.Left(index));

    TInt idlebmpindex(0);

    HBufC* idlewallpaperbmpname = KAknsSkinSrvEmptyString().AllocL();

    CleanupStack::PushL(idlewallpaperbmpname); // 3

    HBufC* name = AknsSrvUtils::GetSkinNameL( *fileBuf );

    CleanupStack::PushL(name); // 4

    infopkg = new (ELeave) TAknsSrvSkinInfoPkg;

    infopkg->iPID = pid;

    infopkg->iColorSchemePID = KAknsPIDColorBlue;

    infopkg->iSkinDirectoryBuf = filedir;

    infopkg->iSkinNameBuf = *name;

    infopkg->iIdleStateWallPaperImageName = *idlewallpaperbmpname;

    infopkg->iFullName = aFilename;

    infopkg->iIsCopyable = EFalse;

    infopkg->iIsDeletable = EFalse;

    infopkg->iIdleBgImageIndex = idlebmpindex;

    infopkg->iCorrupted = EFalse;

    infopkg->iSupportAnimBg = AnimBackgroundSupportL( *fileBuf );

    if ( filedir.LocateF('Z') == 0)

        {

        TPath inifiledir;

        inifiledir.Append(filedir);

        TPath defaultDrive;

        CAknsSrvDriveMaster::GetDefaultDrive( DriveInfo::EDefaultSystem, defaultDrive );

        inifiledir.Replace( 0, 3, defaultDrive );

        infopkg->iSkinIniFileDirectoryBuf = inifiledir;

        infopkg->iProtectionType = EAknsSrvNoProtection;

        }

    else

        {

        infopkg->iSkinIniFileDirectoryBuf = filedir;

        infopkg->iProtectionType = protectionType;

        }

    CleanupStack::PopAndDestroy( 2, idlewallpaperbmpname );

    if (isProtected)

        {

        aDrmHelper.ConsumeFile2(

           file, EInstall, CDRMHelper::EFinish );

        }

    CleanupStack::PopAndDestroy(2); // file, fileBuf

    return infopkg;

    }

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

// AknsSrvUtils::AnimBackgroundSupportL

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

//

TBool AknsSrvUtils::AnimBackgroundSupportL(CAknsSrvFileBuffer& aFile)

    {

    TInt32 numberofchunks = GetInt32L( aFile, EAknsSrvDFOSkinChunksN );

    TInt32 chunksize = 0;

    TUint16 chunktype = 0;

    TInt totaloffset = EAknsSrvDFOSkinContent;

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

        {

        chunksize = GetInt32L( aFile, totaloffset+EAknsSrvDFOCommonLength );

        chunktype = GetUInt16L( aFile, totaloffset+EAknsSrvDFOCommonType );

        if( chunktype == EAknsSkinDescSkinDescClass )

            {

            TInt chunkoffset = totaloffset;

            TInt32 chunkcount = GetInt32L( aFile,chunkoffset+EAknsSrvDFOClassChunksN );

            chunkoffset += EAknsSrvDFOClassContent;

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

                {

                TInt32 chunklen = GetInt32L( aFile,chunkoffset+EAknsSrvDFOCommonLength );

                TInt16 chunktype = GetUInt16L( aFile,chunkoffset+EAknsSrvDFOCommonType );

                if ( chunktype == EAknsSkinDescSkinDescStringItemDef )

                    {

                    TInt32 major = GetInt32L( aFile,chunkoffset+EAknsSrvDFOStringMajor );