/*

* Copyright (c) 2002 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: 

*           Phonebook DRM policy managing class

*

*/

// INCLUDE FILES

#include <CPbkDrmManager.h>

#include <PbkConfig.hrh>

#include <featmgr.h>

#include <DRMCommon.h>

#include <bldvariant.hrh>

#include <eikenv.h>

#include <StringLoader.h>

#include <aknnotewrappers.h>

#include <apgcli.h>                     // RApaLsSession

#include <MusicPlayerInternalCRKeys.h>  // KCRUidMusicPlayerFeatures

#include <centralrepository.h>          // CRepository

#include <DRMHelper.h>                  // CDRMHelper

namespace {

// CONSTANTS

// Blocked mimetypes when DRM is enforced. Keep the last space in list.

// List comes from 107-14385: VFKK: Updates to non-DRM audio blocking requirements

_LIT( KBlockedMimeTypes, "audio/amr-wb audio/mp4 audio/3gpp audio/3gpp2 audio/aac audio/mpeg audio/x-wav audio/wav audio/x-ms-wma ");

} // namespace

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

inline CPbkDrmManager::CPbkDrmManager() :

    iDrmEnabled(EFalse)

    {

    }

inline void CPbkDrmManager::ConstructL()

    {

    // Sets up TLS, must be done before FeatureManager is used.

    FeatureManager::InitializeLibL();

    iDrmHelper = CDRMHelper::NewL();

    iDrmClient = DRMCommon::NewL();

    if (iDrmClient->Connect() == DRMCommon::EOk)

        {

        // if unable to connect, DRM protection is always on

        iDrmEnabled = ETrue;

        }

    }

EXPORT_C CPbkDrmManager* CPbkDrmManager::NewL()

    {

    CPbkDrmManager* self = new(ELeave) CPbkDrmManager();

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

EXPORT_C CPbkDrmManager::~CPbkDrmManager()

    {

    if (iDrmClient)

        {

        iDrmClient->Disconnect();

        }

    delete iDrmClient;

    delete iDrmHelper;

    iDrmHelper = NULL;

    FeatureManager::UnInitializeLib();

    }

EXPORT_C TBool CPbkDrmManager::IsProtectedFile

        (const TDesC& aFileName)

    {

    TBool result( ETrue );

    const TBool drmSupported =

        (FeatureManager::FeatureSupported(KFeatureIdDrm)

        || FeatureManager::FeatureSupported(KFeatureIdDrmFull));

    if (!drmSupported)

        {

        // No DRM support, file retrieval always ok

        result = EFalse;

        }

    else if (iDrmEnabled && drmSupported)

        {

        TBool protection( ETrue );

        // Check is the file protected

        TInt drmErrorCode = iDrmClient->IsProtectedFile(aFileName, protection);

        switch (drmErrorCode)

            {

            case KErrInUse:

                {

                // File is in use. Assume that file is protected.

                // Otherwise there is a threat that protected file 

                // is handled as unprotected.

                result = ETrue;                                

                break;

                }

            case DRMCommon::EOk:    // FALLTHROUGH

            default:

                {

                result = protection;

                break;

                }

            }

        }

    return result;

    }

EXPORT_C TBool CPbkDrmManager::IsRingingToneProtectedL( const TDesC& aFileName )

    {

    TInt result( KErrGeneral );

    const TBool drmSupported =

        (FeatureManager::FeatureSupported(KFeatureIdDrm)

        || FeatureManager::FeatureSupported(KFeatureIdDrmFull));

    if (!drmSupported)

        {

        // No DRM support, file retrieval always ok

        result = KErrNone;

        }

    else

        {

        // DRM is enabled. File must be checked

        if (IsProtectedFile(aFileName))

            {

            result = CheckProtectedFileL(aFileName);

            }

        else

            {

            result = CheckUnprotectedFileL(aFileName);

            }

        }

    if (result == KErrNone)

        {

        return EFalse;

        }

    else

        {

        return ETrue;

        }

    }

void CPbkDrmManager::ShowErrorNoteL( TInt aResource )

    {

    CEikonEnv* env = CEikonEnv::Static();

    HBufC* noteText = StringLoader::LoadLC( aResource, env );

    CAknErrorNote* note =

        new(ELeave)CAknErrorNote( R_AKN_INFORMATION_NOTE_WAIT );

    note->ExecuteLD( *noteText );

    CleanupStack::PopAndDestroy( noteText ); //noteText

    }

EXPORT_C TBool CPbkDrmManager::IsThumbnailProtectedL( const TDesC& aFileName )

    {

    // Thumbnails with any DRM protection are not allowed

    if (IsProtectedFile( aFileName ) )

        {

        ShowErrorNoteL( R_QTN_DRM_NOT_ALLOWED );

        return ETrue;

        }

    else

        {

        return EFalse;

        }

    }

EXPORT_C TBool CPbkDrmManager::HasFileRestrictedRights( const TDesC& aFileName )

    {

    TInt result( KErrGeneral );

    DRMCommon::TContentProtection protection;

    HBufC8* mimeType = NULL; // ignored

    HBufC8* contentUri = NULL;

    TUint dataLength; // ignored

    const TBool drmSupported =

        (FeatureManager::FeatureSupported(KFeatureIdDrm)

        || FeatureManager::FeatureSupported(KFeatureIdDrmFull));

    if (!drmSupported)

        {

        // No DRM support, file retrieval always ok

        result = KErrNone;

        }

    else

        {

        // DRM is enabled. File must be checked

        TInt err = iDrmClient->GetFileInfo( aFileName, protection, mimeType,

                                            contentUri, dataLength );

        delete mimeType;

        if( err )

            {

            // Some error occured. Treat the file as protected

            result = err;

            }

        else if ( protection == DRMCommon::ENoDCFFile )

            {

            result = KErrNone;

            }

        else

            {

            CDRMRights* rights = NULL;

            err = iDrmClient->GetActiveRights( *contentUri, DRMCommon::EPlay, rights );

            if ( err == CDRMRights::EFullRights )

                {

                result = KErrNone;

                }

            if ( rights )

                {

                delete rights;

                }

            }

        }

    if ( contentUri )

        {

        delete contentUri;

        }

    if ( result == KErrNone )

        {

        return EFalse;

        }

    else

        {

        return ETrue;

        }

    }

TBool CPbkDrmManager::IsDrmRequiredForPlaybackL()

    {

    // It is possible to disable support for non-DRM protected rich audio

    // formats.

    CRepository* musicPlayerFeatures =

        CRepository::NewLC(KCRUidMusicPlayerFeatures);

    TInt value=0;

    User::LeaveIfError(

        musicPlayerFeatures->Get(KRequireDRMInPlayback, value));

    CleanupStack::PopAndDestroy(musicPlayerFeatures);

    return static_cast<TBool>(value);

    }

 TBool CPbkDrmManager::IsBlockedMimeTypeL( const TDesC& aMimeType)

    {

    // Add space to aMimeType for searching (FindF() would find "audio/3gpp" in

    // "audio/3gpp2" without the added space).

    TBool isBlocked(EFalse);

    if( aMimeType.Length() > 0 )

        {

        HBufC* mimeBuf = HBufC::NewLC(aMimeType.Length() + 1);

        mimeBuf->Des().Copy(aMimeType);

        mimeBuf->Des().Append(' ');

        isBlocked = (KBlockedMimeTypes().FindF(*mimeBuf) != KErrNotFound);

        CleanupStack::PopAndDestroy(mimeBuf);

        }

    return isBlocked;

    }

TInt CPbkDrmManager::CheckProtectedFileL( const TDesC& aFileName )

    {

    TBool automatedOk(EFalse);

    // Check that file can be set as automated content.

    TInt err = iDrmHelper->CanSetAutomated(aFileName,

            automatedOk);        

    if (err==KErrNone && !automatedOk)

        {

        ShowErrorNoteL(R_QTN_PHOB_DRM_PREV_RIGHTS_SET);     

        return KErrGeneral;        

        }                        

    if (err!=KErrNone)

        {

        // Locked file case is handled separately.

        if (err==KErrInUse)

            {

            CCoeEnv::Static()->HandleError(KErrInUse);

            }            

        else

            {

            iDrmHelper->HandleErrorL(err,aFileName);

            }            

        return KErrGeneral;

        }

    DRMCommon::TContentProtection protection;

    HBufC8* mimeType = NULL; // ignored

    HBufC8* contentUri = NULL;

    TUint dataLength; // ignored

    err = iDrmClient->GetFileInfo( aFileName, protection, mimeType,

                                        contentUri, dataLength );

    delete mimeType;

    if( err )

        {

        delete contentUri;

        User::Leave( err );

        }

    TInt result( KErrGeneral );

    CDRMRights* rights = NULL;

    err = iDrmClient->GetActiveRights( *contentUri, DRMCommon::EPlay, rights );

    switch ( err )

        {

        case CDRMRights::EFullRights: // Fall through

        case CDRMRights::ERestrictedRights:

            {

            CDRMRights::TRestriction restriction; // ignore

            CDRMRights::TExpiration expiration;

            TUint32 constType;

            rights->GetRightsInfo( DRMCommon::EPlay, restriction, // ignore return

                               expiration, constType );       // value

            // This is CFM protected file, ringingtone is set to "no"

            if ( ( rights->GetPermission().iInfoBits & ENoRingingTone )

                // This is normal DRM protected tone

                || ( constType & ( CDRMRights::ECountBased |

                                   CDRMRights::ETimeIsAccumulatedTime ) ) )

                {

                ShowErrorNoteL( R_QTN_PHOB_DRM_PREV_RIGHTS_SET );

                }

            else

                {

                switch ( expiration )

                    {

                    case CDRMRights::EValidRights:

                        {

                        result=KErrNone;

                        break;

                        }

                    case CDRMRights::EFutureRights:

                        {

                        iDrmHelper->HandleErrorL( DRMCommon::ENoRights, aFileName );

                        break;

                        }

                    case CDRMRights::EExpiredRights:

                        {

                        iDrmHelper->HandleErrorL( DRMCommon::ERightsExpired, aFileName );

                        break;

                        }

                    default:

                        {

                        break;

                        }

                    }

                }

            break;

            }

        case CDRMRights::EPreviewRights:

            {

            ShowErrorNoteL( R_QTN_PHOB_DRM_PREV_RIGHTS_SET );

            break;

            }

        case DRMCommon::ENoRights:

            {

            iDrmHelper->HandleErrorL( DRMCommon::ENoRights, aFileName );

            break;

            }

        default:

            {

            break;

            }

        }

    delete rights;

    delete contentUri;

    return result;

    }

TInt CPbkDrmManager::CheckUnprotectedFileL(const TDesC& aFileName)

    {

    TInt result = KErrNone;

    RApaLsSession apaLs;

    User::LeaveIfError( apaLs.Connect() );

    TUid appUidNotUsed = KNullUid;

    TDataType dataType;

    TInt err = apaLs.AppForDocument( aFileName, appUidNotUsed, dataType );

    apaLs.Close();

    User::LeaveIfError( err );

    // Check if this unprotected MIME type should be blocked

    if (IsDrmRequiredForPlaybackL() &&

        IsBlockedMimeTypeL(dataType.Des()))

        {

        result = KErrPermissionDenied;

        ShowErrorNoteL( R_QTN_PHOB_UNPROTECTED_TONE );

        }

    return result;

    }

//  End of File