author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 13 Oct 2010 14:51:53 +0300 | |
branch | RCL_3 |
changeset 67 | 940cad2b4a51 |
parent 54 | 7e0eff37aedb |
permissions | -rw-r--r-- |
54 | 1 |
/* |
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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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67
940cad2b4a51
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
54
diff
changeset
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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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414 |
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415 |
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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422 |
if( err != KErrNone ) |
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{ |
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424 |
User::Leave( err ); |
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} |
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CleanupClosePushL( hFile ); |
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427 |
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428 |
#ifdef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM |
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429 |
TPtrC agent( KNullDesC ); |
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430 |
DRM::CDrmUtility* drmUtil( DRM::CDrmUtility::NewLC() ); |
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431 |
drmUtil->GetAgentL( hFile, agent ); |
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432 |
if( agent.Compare( DRM::KDrmWMAgentName ) == 0 ) |
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{ |
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434 |
res = ETrue; |
|
435 |
} |
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436 |
CleanupStack::PopAndDestroy( drmUtil ); |
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437 |
#else |
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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 |