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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Implementation of the CFLDDRMImplementation.
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*
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*/
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// CLASS HEADER
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#include "CFLDDRMImplementation.h"
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// INTERNAL INCLUDES
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#include "CFLDRingingTonePlayer.h" // KFLDResourceFileName
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// EXTERNAL INCLUDES
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#include <DRMCommon.h>
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#include <DRMHelper.h>
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#include <filelist.rsg>
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#include <MProfilesLocalFeatures.h>
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#include <MProfileUtilitySingleton.h>
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#ifdef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM
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#include <drmutility.h>
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#include <drmagents.h>
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#endif
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// CONSTANTS
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namespace
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{
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_LIT( KFLDROMDriveLetter, "Z:" );
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}
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CFLDDRMImplementation::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CFLDDRMImplementation::ConstructL()
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{
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iProfilesFeatures = &( ProfileUtilityInstanceL().ProfilesLocalFeatures() );
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iDRMCommon = DRMCommon::NewL();
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User::LeaveIfError( iDRMCommon->Connect() );
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iDRMHelper = CDRMHelper::NewL( *CCoeEnv::Static() );
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}
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// Destructor
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CFLDDRMImplementation::~CFLDDRMImplementation()
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{
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delete iDRMHelper;
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if( iDRMCommon )
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{
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iDRMCommon->Disconnect(); // ignore possible error
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delete iDRMCommon;
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}
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ReleaseProfileUtility();
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}
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// -----------------------------------------------------------------------------
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// CFLDDRMImplementation::SetAutomatedType
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CFLDDRMImplementation::SetAutomatedType(
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CDRMHelper::TDRMHelperAutomatedType aAutomatedType )
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{
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iAutomatedType = aAutomatedType;
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}
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// -----------------------------------------------------------------------------
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// CFLDDRMImplementation::IsFileValidL
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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TBool CFLDDRMImplementation::IsFileValidL(
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const TDesC& aFileName, TIntention aIntention )
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{
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// If the destructor is empty, return that it's valid
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if( aFileName.Compare( KNullDesC ) == 0 )
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{
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return ETrue;
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}
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// Tone files on ROM are always valid
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if( ( aFileName.Left( KFLDROMDriveLetter().Length() ).CompareF(
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KFLDROMDriveLetter ) == 0 ) )
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{
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return ETrue;
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}
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// Check if file is WMDRM protected
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TBool prot( EFalse );
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TRAPD( err, prot = IsFileWMDRMProtectedL( aFileName ) );
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if( err != KErrNone )
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{
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ShowErrorNoteL( R_FLD_QTN_FILE_FORMAT_ERROR );
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return EFalse;
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}
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if( prot )
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{
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ShowErrorNoteL( R_FLD_QTN_PROFILES_INFO_TONE_DRM_PROTECTED );
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return EFalse;
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}
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ContentAccess::TVirtualPathPtr path( aFileName,
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ContentAccess::KDefaultContentObject );
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CData* data = CData::NewLC( path, EContentShareReadWrite );
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TInt isProtected;
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TInt error = data->GetAttribute( EIsProtected, isProtected );
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CleanupStack::PopAndDestroy(); // data
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if( error != DRMCommon::EOk )
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{
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// DRM Helper class knows at least rights db corrupted error message.
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// Leaves on system-wide error code.
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iDRMHelper->HandleErrorL( error, aFileName );
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return EFalse;
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}
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// Obtain information whether the file can be set as automated content
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TBool canSetAutomated( EFalse );
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TInt canSetAutomatedErr( iDRMHelper->CanSetAutomated( aFileName, canSetAutomated ) );
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if( !isProtected && canSetAutomated )
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{
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// The file in question is not DRM protected.
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// Return ETrue if file is also Ok unprotected, otherwise EFalse.
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return IsFileValidUnprotectedL( aFileName, aIntention );
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}
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// Operator requirement: Check restrictions if file is mp4 audio
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TBuf<KMaxDataTypeLength> dataType( DataTypeL( aFileName ).Des() );
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if( iProfilesFeatures->IsBlockedProtectedType( dataType ) )
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{
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ShowErrorNoteL( R_FLD_QTN_PROFILES_INFO_TONE_DRM_PROTECTED );
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return EFalse;
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}
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if ( canSetAutomatedErr == DRMCommon::ERightsExpired ||
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canSetAutomatedErr == DRMCommon::ENoRights )
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{
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// Rights are expired, future rights or missing
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iDRMHelper->HandleErrorL( canSetAutomatedErr, aFileName );
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return EFalse;
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}
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// Operator requirement: Check DRM v2 tones
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if( !canSetAutomated )
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{
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// This is DRM v2 file OR count based v1 tone
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ShowErrorNoteL( aIntention == EPlay ?
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R_FLD_QTN_DRM_PREV_RIGHTS_USE : R_FLD_QTN_DRM_PREV_RIGHTS_SET);
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return EFalse;
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}
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TInt32 infoBits( 0x00000000 );
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// Find out rights information
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if( !CFLDDRMImplementation::GetFileInfoL(
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aFileName, infoBits ) )
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{
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// Corrupted file or "No rights" situation
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return EFalse;
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}
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// Operator requirement: Check CFM protection
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if ( infoBits & ENoRingingTone )
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{
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// This is CFM protected file, ringingtone is set to "no"
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ShowErrorNoteL( aIntention == EPlay ?
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R_FLD_QTN_DRM_PREV_RIGHTS_USE : R_FLD_QTN_DRM_PREV_RIGHTS_SET);
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return EFalse;
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}
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if( aIntention == ESelect )
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{
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// Rights are good to go, and intention is selection
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// call SetAutomatedPassive to show 'activation query'
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iDRMHelper->SetAutomatedType( iAutomatedType );
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error = iDRMHelper->SetAutomatedPassive( aFileName );
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if( error != KErrCancel )
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{
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// User accepted dialog
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User::LeaveIfError( error );
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// New way, does not require DRM capability
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data = CData::NewLC( path, EContentShareReadWrite );
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error = data->ExecuteIntent( ContentAccess::EPlay );
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// Wrongly requires DRM after all. According to Risto Vilkman
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// from DRM, KErrAccessDenied can be ignored, since if
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// CanSetAutomated says the tone is OK, it's OK.
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if ( error != KErrNone && error != KErrAccessDenied )
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{
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User::Leave( error );
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}
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CleanupStack::PopAndDestroy(); // data
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}
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else
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{
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// User canceled dialog
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return EFalse;
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}
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}
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return ETrue;
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}
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// -----------------------------------------------------------------------------
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// CFLDDRMImplementation::GetFileInfo
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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TBool CFLDDRMImplementation::GetFileInfoL(
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const TDesC& aFileName, TInt32& aInfoBits ) const
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{
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DRMCommon::TContentProtection contentProtection; // ignored
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HBufC8* mimeType = NULL; // ignored
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TUint dataLength( 0 ); // ignored
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HBufC8* contentURI( NULL );
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// Obtain content URI
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TInt error = iDRMCommon->GetFileInfo(
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aFileName, contentProtection, mimeType, contentURI, dataLength );
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delete mimeType;
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if( error != DRMCommon::EOk )
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{
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delete contentURI;
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// Handle possible corrupt file situation
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iDRMHelper->HandleErrorL( error, aFileName );
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return EFalse;
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}
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// Obtain rights object
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CDRMRights* rights = NULL;
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error = iDRMCommon->GetActiveRights( *contentURI, DRMCommon::EPlay, rights );
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delete contentURI;
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if( error == DRMCommon::ENoRights )
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{
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delete rights;
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// There is no rights for given file
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// Should never arrive here, ENoRights is handled
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// already in IsFileValidL()
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iDRMHelper->HandleErrorL( error, aFileName );
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return EFalse;
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}
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// Obtain infobits ( needed only for CFM case )
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aInfoBits = rights->GetPermission().iInfoBits;
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delete rights;
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return ETrue;
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}
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// -----------------------------------------------------------------------------
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//
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// Functions related to WMDRM protection check
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//
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// -----------------------------------------------------------------------------
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#ifndef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM
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// Some magic constants
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static const TInt KMinContentLength( 16 );
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//_LIT8( KContentProtectionType, "DRM" );
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_LIT8( KASFHeaderObject, "75B22630668E11CFA6D900AA0062CE6C" );
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_LIT8( KWrmHeader, "W\0R\0M\0H\0E\0A\0D\0E\0R\0" );
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// -----------------------------------------------------------------------------
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// FormatGUID
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// -----------------------------------------------------------------------------
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//
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LOCAL_C void FormatGUID( TDes8& aGUID )
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{
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TBuf8<16> copyGUID( aGUID );
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TInt i;
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for( i = 0; i < 4; i++ )
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{
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copyGUID[i] = aGUID[3-i];
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}
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for( i = 4; i < 6; i++ )
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{
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copyGUID[i] = aGUID[9 - i];
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}
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for( i = 6; i < 8; i++ )
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{
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copyGUID[i] = aGUID[13 - i];
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}
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for( i = 8; i < 16 ; i++ )
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{
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copyGUID[i] = aGUID[i];
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}
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aGUID.Delete( 0, 32 );
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for( i = 0; i <16; i++ )
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{
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aGUID.AppendNumFixedWidthUC( copyGUID[i], EHex, 2 );
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}
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}
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// -----------------------------------------------------------------------------
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// ConvertToInt64
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// -----------------------------------------------------------------------------
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//
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LOCAL_C TInt64 ConvertToInt64( TDesC8& aDes )
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{
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TInt64 num = 0;
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TInt i;
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for( i = 7 ; i >= 0; i-- )
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{
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num <<= 8;
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num |= aDes[i];
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}
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return num;
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}
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// -----------------------------------------------------------------------------
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// IsProtectedWmDrmL
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// returns ETrue, if file is protected WMDRM file
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// EFalse if file is not protected WMDRM file
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// Leaves with KErrUnderflow if file has too little data to decide
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// whether WmDrm or not
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// may also leave with other system wide error code
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// -----------------------------------------------------------------------------
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//
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LOCAL_C TBool IsProtectedWmDrmL( RFile& aFileHandle )
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{
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TInt r( KErrNone );
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HBufC8* buffer( NULL );
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TInt pos( 0 );
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RFile file;
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TBuf8< 32 > header;
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TInt64 headerSize( 0 );
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TBool isProtectedWmDrm( EFalse );
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TPtr8 headerPtr( NULL, 0 );
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// Leave if given handle is invalid
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if( !aFileHandle.SubSessionHandle() )
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{
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User::Leave( KErrBadHandle );
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}
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User::LeaveIfError( file.Duplicate( aFileHandle ) );
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CleanupClosePushL( file );
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User::LeaveIfError( file.Seek( ESeekStart, pos ) );
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// Check if the file is an ASF file
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// : Check on runtime wether WM DRM is supporeted or not
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User::LeaveIfError( file.Read( 0, header, KMinContentLength ) );
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if( header.Length() < KMinContentLength )
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{
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User::Leave( KErrUnderflow );
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}
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FormatGUID( header );
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if( header == KASFHeaderObject )
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{
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// It's ASF, check still whether it's WM DRM protected or not
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file.Read( header,8 );
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headerSize = ConvertToInt64( header );
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if( headerSize <= 30 )
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{
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User::Leave( KErrUnderflow );
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}
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if ( headerSize > ( ( KMaxTInt32 / 2 ) - 1 ) )
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{
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User::Leave( KErrOverflow );
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}
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buffer = HBufC8::NewLC( headerSize );
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headerPtr.Set( buffer->Des() );
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User::LeaveIfError( file.Read( headerPtr, headerSize - 24 ) );
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r = headerPtr.Find( KWrmHeader );
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if ( KErrNotFound != r )
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{
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isProtectedWmDrm = ETrue;
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}
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CleanupStack::PopAndDestroy( buffer ); // buffer
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}
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CleanupStack::PopAndDestroy(); // file
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return isProtectedWmDrm;
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}
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#endif // RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM
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// -----------------------------------------------------------------------------
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// CFLDDRMImplementation::IsFileWMDRMProtectedL
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// -----------------------------------------------------------------------------
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//
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TBool CFLDDRMImplementation::IsFileWMDRMProtectedL( const TDesC& aFileName ) const
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{
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TBool res = EFalse;
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RFs& fsSession( CCoeEnv::Static()->FsSession() );
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RFile hFile;
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TInt err = hFile.Open( fsSession, aFileName,
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EFileRead | EFileStream | EFileShareReadersOnly );
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if( err == KErrInUse )
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{
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err = hFile.Open( fsSession, aFileName,
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EFileRead | EFileStream | EFileShareAny );
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}
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if( err != KErrNone )
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{
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User::Leave( err );
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}
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CleanupClosePushL( hFile );
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#ifdef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM
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TPtrC agent( KNullDesC );
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DRM::CDrmUtility* drmUtil( DRM::CDrmUtility::NewLC() );
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drmUtil->GetAgentL( hFile, agent );
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|
432 |
if( agent.Compare( DRM::KDrmWMAgentName ) == 0 )
|
|
433 |
{
|
|
434 |
res = ETrue;
|
|
435 |
}
|
|
436 |
CleanupStack::PopAndDestroy( drmUtil );
|
|
437 |
#else
|
|
438 |
res = IsProtectedWmDrmL( hFile );
|
|
439 |
#endif
|
|
440 |
|
|
441 |
CleanupStack::PopAndDestroy( &hFile );
|
|
442 |
return res;
|
|
443 |
}
|
|
444 |
|
|
445 |
// -----------------------------------------------------------------------------
|
|
446 |
//
|
|
447 |
// End of Functions related to WMDRM protection check
|
|
448 |
//
|
|
449 |
// -----------------------------------------------------------------------------
|
|
450 |
|
|
451 |
// End of File
|