/*

* 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_WMDRMDLAHTTPLICACQPLUGINFW_H

#define C_WMDRMDLAHTTPLICACQPLUGINFW_H

#include <e32base.h>

#include <f32file.h>

#include <wmdrmdlatypes.h>

#include <wmdrmdlacancelobserver.h>

class CWmDrmDlaHttpPluginIf;

class CWmDrmDlaUiNotifier;

class CWmDrmDlaParser;

/**

 *  Implementation class for WMDRM DLA HTTP License Acquisition FW

 *  @since S60 v9.1

 */

NONSHARABLE_CLASS( CWmDrmDlaHttpLicAcqPluginFw ) 

    : public CActive, public MWmDrmDlaCancelObserver

    {

public:

    static CWmDrmDlaHttpLicAcqPluginFw* NewL();

    static CWmDrmDlaHttpLicAcqPluginFw* NewLC();    

    /**

    * Destructor.

    */

    virtual ~CWmDrmDlaHttpLicAcqPluginFw();

    /**

     * Checks if license acquisition for file is silent

     *

     * @param   aFile wmdrm file

     * @return  ETrue if license acquisition is silent

     * @leave   KErrNotFound if there is no handler for the file

     */

    TBool SilentL( const RFile& aFile );

    /**

     * Acquire license for given WMDRM file

     *

     * @param   aFile wmdrm file

     * @param   aContentUrl contains content URL on completion. Can be NULL.

     * If it's not NULL, it must be freed by caller.  

     * @param   aHtmlData contains HTML data returned by license server

     *                    on completion. Can be NULL.

     * If it's not NULL, it must be freed by caller.  

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

     */

    void AcquireLicense( const RFile& aFile, HBufC*& aContentUrl, 

                         HBufC*& aHtmlData, TRequestStatus& aStatus );

    /**

     * Acquire license based on DRM Header

     *

     * @param   aDrmHeader DRM Header

     * @param   aErrorUrl URL where error code is sent. Can be NULL.

     * @param   aContentUrl contains content URL on completion. Can be NULL.

     * If it's not NULL, it must be freed by caller.  

     * @param   aHtmlData contains HTML data returned by license server

     *                    on completion. Can be NULL.

     * If it's not NULL, it must be freed by caller.  

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

     */

    void AcquireLicenseFromDrmHeader( const TDesC8& aDrmHeader, 

                                      HBufC* aErrorUrl,

                                      HBufC*& aContentUrl, 

                                      HBufC*& aHtmlData, 

                                      TRequestStatus& aStatus );

    /*

     * Cancels license acquisition

     */

    void CancelLicenseAcquisition();

    /**

     * 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:

    CWmDrmDlaHttpLicAcqPluginFw();

    void ConstructL();

    void CompleteSelf();

    void CompleteClientRequest( TInt aError );

    void Reset();

    TBool SilentHandlerL( const RFile& aFile );

    void ResolvingHttpPluginFromDRMHeaderHandlerL();

    void ResolvingHttpPluginFromFileHandleHandlerL();

    void RetrievingDRMHeaderFromFileHandleHandler();

    void ProcessingDRMHeaderHandler();

    void SendingDRMHeaderErrorHandler( TInt aError );

    void SentDRMHeaderErrorHandlerL();

    void RetrievingChallengeHandler();

    void RetrievingLicenseHandler();

    void AddingLicenseHandlerL();

    void ProcessingLicenseHandler();

    void SendingLicenseStorageStatusHandler();

    void SentLicenseStorageStatusHandler();

    void LicensingCompleteL();

    void ResolveHttpPluginL( const RFile& aFile );

    void ResolveHttpPluginL( const TDesC8& aDrmHeader );

    void ParseDrmHeaderL( const TDesC8& aDrmHeader, 

                          HBufC*& aLicenseServerUrl );

    void ParseLicenseResponseL( const TDesC8& aLicenseResponse, 

                                HBufC8*& aTid, HBufC*& aContentUrl );

    void HandleErrorL( TInt aError );

    static TInt AsyncCancel( TAny* aPtr );

private: // data

    enum THttpLicAcqPluginFwState

        {

        EIdle = 0,

        EResolvingHttpPluginFromDRMHeader,

        EResolvingHttpPluginFromFileHandle,

        ERetrievingDRMHeaderFromFileHandle,

        EProcessingDRMHeader,

        ESentDRMHeaderError,

        ERetrievingChallenge,

        ERetrievingLicense,

        EAddingLicense,

        EProcessingLicense,

        ESendingLicenseStorageStatus,

        ESentLicenseStorageStatus,

        ELicensingComplete

        };

    THttpLicAcqPluginFwState iState;

    CWmDrmDlaHttpPluginIf* iHttpPlugin;

    CWmDrmDlaUiNotifier* iUiNotifier;

    CWmDrmDlaParser* iDlaParser;

    CActiveSchedulerWait* iWait;

    CIdle* iIdle;

    TInt iIapId;

    TBool iSilentInitialised;

    HBufC8* iDrmHeader;

    HBufC* iLicenseServerUrl;

    HBufC8* iLicenseChallenge;

    HBufC8* iLicenseResponse;

    //Not owned

    HBufC* iErrorUrl;

    const RFile* iFile;

    HBufC** iContentUrl;

    HBufC** iHtmlData;

    TRequestStatus* iClientStatus;

    };

#endif // C_WMDRMDLAHTTPLICACQPLUGINFW_H