// Copyright (c) 2001-2009 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:

// Header file for OCSP transaction object

// 

//

/**

 @file 

 @internalComponent 

*/

#ifndef __OCSP_TRANSACTION_H__

#define __OCSP_TRANSACTION_H__

#include <ocsp.h>

#include <e32base.h>

#include "ocsprequestandresponse.h"

class COCSPRequestEncoder;

class COCSPResponseDecoder;

/**

 * OCSP Transaction object, used to send the request to the server and get the

 * response back again.

 */

NONSHARABLE_CLASS(COCSPTransaction) : public CActive

	{

public:

	// Does not take ownership of the transport object

	static COCSPTransaction* NewL(const TDesC8& aURI, 

								  MOCSPTransport& aTransport, const TUint aRetryCount, const TInt aTimeout);

	~COCSPTransaction();

	/**

	 * Asynchronous interface to send the reqest.  Can complete with one of the

	 * status codes from OCSP::TStatus if there's a problem decoding the

	 * response.

	 */

	void SendRequest(COCSPRequest& aRequest, TRequestStatus& aStatus);

	void CancelRequest();

	/**

	 * Get the response and relinquish ownership of it.  Returns NULL unless

	 * SendRequest completed successfully.

	 */	

	COCSPResponse* TakeResponse();

private:

	// From CActive

	void RunL();

	void DoCancel();

	TInt RunError(TInt aError);

private:

	COCSPTransaction(MOCSPTransport& aTransport, const TUint aRetryCount, const TInt aTimeout);

	void ConstructL(const TDesC8& aURI);

	void CompleteClient(const TInt aStatus);

private:

	enum TState

		{

		ESendRequest,

		EFinished

		};

	MOCSPTransport& iTransport;

	HBufC8* iURI;

	TState iState;

	// Client TRequestStatus, for the asynchronous SendRequestL

	TRequestStatus* iClientRequestStatus;

	// Request object to send

	COCSPRequest* iRequest;

	// Request encoder.  We own this.

	COCSPRequestEncoder* iRequestEncoder;

	// Response object, NULL unless response data received OK

	COCSPResponseDecoder* iResponseDecoder;

	// Remaining number of times to send request on failed response (1 means no retry)

	TUint iRetryCount;

	// Timeout value (passed on to the transport layer)

	TInt iTimeout;

	};

#endif