// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// which accompanies this distribution, and is available

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

/**

 @file MHTTPAuthenticationCallback.h

 @warning : This file contains Rose Model ID comments - please do not delete

*/

#ifndef	__MHTTPAUTHENTICATIONCALLBACK_H__

#define	__MHTTPAUTHENTICATIONCALLBACK_H__ 

// System includes

#include <uri8.h>

#include <stringpool.h>

#include <http/rhttpsession.h>

#include <http/cauthenticationfilterinterface.h>

//##ModelId=3B1E52A50151

class MHTTPAuthenticationCallback

/** 

The mixin that needs to be implemented if authentication is to be

supported. This supplies the username and password when they are

needed for authentication.

To use, subclass off this class and implement GetCredentialsL. To install

the class into a session, call InstallAuthenticationL.

@publishedAll

@released

*/

	{

 public:

	/** Gets some credentials. Note that the first 3 parameters are

		informational and many clients may not have a use for

		them. Clients may want to display some or all of these

		parameters to the user, so that the user knows who they are

		giving their credentials to, and how securely they will be

		transmitted.

		@param aURI The URI being requested

		@param aRealm The realm being requested

		@param aAuthenticationType The type of authentication (basic or digest)

		@param aUsername The username is returned in this parameter. 

		The caller will close the returned string.

		@param aPassword The password is returned in this parameter

		The caller will close the returned string.

		@return True if credentials have been obtained. 

		@leave Anything. If this function leaves the transaction will be 

		failed. 

	*/

	//##ModelId=3B1E52A5015D

	virtual TBool GetCredentialsL(const TUriC8& aURI, RString aRealm, 

								  RStringF aAuthenticationType,

								  RString& aUsername, 

								  RString& aPassword) = 0;

	/** Installs the callback into the session.

		Typicaly called from the implementation class's ConstructL().

		@pre The session is opened, but no transactions have been created on it

		@post The session supports authentication, and uses this API to

		get its credentials.

		@param aSession the session to install the filter into.

		@leave KErrNoMemory There was not enough memory.

	 */

	//##ModelId=3B1E52A5015B

	inline void InstallAuthenticationL(RHTTPSession aSession);

	};

inline void MHTTPAuthenticationCallback::InstallAuthenticationL(RHTTPSession aSession)

	{

	CAuthenticationFilterInterface::InstallFilterL(aSession, this);

	}

#endif //	__MHTTPAUTHENTICATIONCALLBACK_H__