// Copyright (c) 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:

// dnsproxyserver.h

// Header file for the DNS Proxy server side implementation.

//

/**

 @file

 @internalComponent

*/

#ifndef __DNSPROXYSERVSESS_H__

#define __DNSPROXYSERVSESS_H__

#include <e32base.h>

#include "dnsproxyengine.h"

//forward declaration

class CDnsProxyEngine;

/**

This class is the session handler class derived from Symbian CSession2. The class provides

command handlers for different client commands.  

**/

class CDnsProxyServerSession : public CSession2

    {

public:

    ~CDnsProxyServerSession();

    static CDnsProxyServerSession* NewL();

    virtual void ServiceL(const RMessage2& aMessage);

    // Stops DNS Proxy engine and does a complete cleanup of resources.

    void StopDNSEngine();

protected:

	 CDnsProxyServerSession();    

private:

	void DoServiceL(const RMessage2& aMessage); 

    // Starts DNS Proxy engine at the DNS Proxy startup

    TInt StartDnsEngine(const RMessage2& aMessage);

    // This method updates DNS Proxy database with hostname and IP address information.

    TInt UpdateDatabaseL(const RMessage2& aMessage);

    //Gets the domain name from the DHCP server

    TInt UpdateDomainName(const RMessage2& aMessage);

    // Sets Uplink information

	TInt UpdateUplinkConfig(const RMessage2& aMessage);

	// Remove entry from Db

	TInt RemoveDbEntry(const RMessage2& aMessage);

	void ConstructL();

private:

	// An instance of CDnsProxy Engine which is a DNS Proxy control class.

    CDnsProxyEngine* iProxyEngine;

    // client side message.

    RMessage2 iMessage; 

    //This flag is to check wether engine is started or not.

    TBool iIsEngineStarted;

    };

#endif //__DNSPROXYSERVSESS_H__