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<?php
/**
* This plugin provides Authentication for a WebDAV server.
*
* It relies on a Backend object, which provides user information.
*
* Additionally, it provides support for:
* * {DAV:}current-user-principal property from RFC5397
* * {DAV:}principal-collection-set property from RFC3744
*
* @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
*/
class Sabre_DAV_Auth_Plugin extends Sabre_DAV_ServerPlugin {
/**
* Reference to main server object
*
* @var Sabre_DAV_Server
*/
private $server;
/**
* Authentication backend
*
* @var Sabre_DAV_Auth_IBackend
*/
private $authBackend;
/**
* The authentication realm.
*
* @var string
*/
private $realm;
/**
* __construct
*
* @param Sabre_DAV_Auth_IBackend $authBackend
* @param string $realm
*/
public function __construct(Sabre_DAV_Auth_IBackend $authBackend, $realm) {
$this->authBackend = $authBackend;
$this->realm = $realm;
}
/**
* Initializes the plugin. This function is automatically called by the server
*
* @param Sabre_DAV_Server $server
* @return void
*/
public function initialize(Sabre_DAV_Server $server) {
$this->server = $server;
$this->server->subscribeEvent('beforeMethod',array($this,'beforeMethod'),10);
}
/**
* Returns a plugin name.
*
* Using this name other plugins will be able to access other plugins
* using Sabre_DAV_Server::getPlugin
*
* @return string
*/
public function getPluginName() {
return 'auth';
}
/**
* Returns the current users' principal uri.
*
* If nobody is logged in, this will return null.
*
* @return string|null
*/
public function getCurrentUser() {
$userInfo = $this->authBackend->getCurrentUser();
if (!$userInfo) return null;
return $userInfo;
}
/**
* This method is called before any HTTP method and forces users to be authenticated
*
* @param string $method
* @param string $uri
* @throws Sabre_DAV_Exception_NotAuthenticated
* @return bool
*/
public function beforeMethod($method, $uri) {
$this->authBackend->authenticate($this->server,$this->realm);
}
}
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