/*

* Copyright (c) 2008-2009 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:  HTTP plugin framework interface for WMDRM DLA

*

*/

#ifndef C_WMDRMDLAHTTPMETERINGPLUGINFW_H

#define C_WMDRMDLAHTTPMETERINGPLUGINFW_H

#include <e32base.h>

#include <f32file.h>

#include <wmdrmdlatypes.h>

#include <wmdrmdlacancelobserver.h>

class CWmDrmDlaHttpPluginIf;

class CWmDrmDlaUiNotifier;

/**

 *  Implementation class for WMDRM DLA HTTP Metering FW

 *  @since S60 v9.1

 */

NONSHARABLE_CLASS( CWmDrmDlaHttpMeteringPluginFw ) 

    : public CActive, public MWmDrmDlaCancelObserver

    {

public:

    static CWmDrmDlaHttpMeteringPluginFw* NewL();

    static CWmDrmDlaHttpMeteringPluginFw* NewLC();    

    /**

    * Destructor.

    */

    virtual ~CWmDrmDlaHttpMeteringPluginFw();

    /**

     * Handles metering certificate OTA

     *

     * @param   aCertificate metering certificate

     * @param   aStatus Request status. On completion contains the error code.

     */

    void ProcessMeteringCertificate( const TDesC8& aCertificate, 

                                     TRequestStatus& aStatus );

    /*

     * Cancels metering

     */

    void CancelMetering();

    /**

     * Sets the IAP to be used in the HTTP transactions

     *

     * @param   aIapId  Internet Access Point id

     */

    void SetIapId( TInt aIapId );

protected:

    // from base class CActive

    /**

    * From CActive Cancels async request.

    */

    void DoCancel();

    /**

    * From CActive Called when async request completes.

    */

    void RunL();

    /**

    * From CActive Called if RunL leaves.

    */

    TInt RunError( TInt aError );

public: // from MWmDrmDlaCancelObserver

    void UserCancellation();    

private:

    CWmDrmDlaHttpMeteringPluginFw();

    void ConstructL();

    void CompleteSelf();

    void CompleteClientRequest( TInt aError );

    void Reset();

    void ResolvingHttpPluginHandlerL();

    void RetrievingMeteringChallenge();

    void ProcessingMeteringChallenge();

    void RetrievingMeteringResponse();

    void ProcessingMeteringResponse();

    void MeteringFinished();

    void ResolveHttpPluginWithCertificateL( const TDesC8& aCertificate );

    void HandleErrorL( TInt aError );

    static TInt AsyncCancel( TAny* aPtr );

private: // data

    enum THttpMeteringPluginFwState

        {

        EIdle = 0,

        EResolvingHttpPlugin,

        ERetrievingMeteringChallenge,

        EProcessingMeteringChallenge,

        ERetrievingMeteringResponse,

        EProcessingMeteringResponse,

        EMeteringFinished

        };

    THttpMeteringPluginFwState iState;

    CWmDrmDlaHttpPluginIf* iHttpPlugin;

    CWmDrmDlaUiNotifier* iUiNotifier;

    CIdle* iIdle;

    TInt iIapId;

    HBufC8* iMeteringChallenge;

    HBufC* iMeteringUrl;

    HBufC8* iMeteringResponse;

    TUint32 iPartialMetering;

    //Not owned

    const TDesC8* iCertificate;

    TRequestStatus* iClientStatus;

    };

#endif // C_WMDRMDLAHTTPMETERINGPLUGINFW_H