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<?php
/**
* This is the base class for any authentication object.
*
* @package Sabre
* @subpackage DAV
* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
interface Sabre_DAV_Auth_IBackend {
/**
* Authenticates the user based on the current request.
*
* If authentication is successful, true must be returned.
* If authentication fails, an exception must be thrown.
*
* @param Sabre_DAV_Server $server
* @param string $realm
* @return bool
*/
function authenticate(Sabre_DAV_Server $server,$realm);
/**
* Returns information about the currently logged in username.
*
* If nobody is currently logged in, this method should return null.
*
* @return string|null
*/
function getCurrentUser();
}
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