1: <?php
 2: /**
 3:  * This class implements an authentication backend for Sabre_DAV based on
 4:  * Horde_Auth.
 5:  *
 6:  * Copyright 2009-2012 Horde LLC (http://www.horde.org/)
 7:  *
 8:  * @package Sabre
 9:  * @author  Jan Schneider <jan@horde.org>
10:  * @license @todo
11:  */
12: class Sabre_DAV_Auth_Backend_Horde extends Sabre_DAV_Auth_Backend_Abstract
13: {
14:     /**
15:      * @var Horde_Auth
16:      */
17:     protected $_auth;
18: 
19:     public function __construct(Horde_Auth $auth)
20:     {
21:         $this->_auth = $auth;
22:     }
23: 
24:     /**
25:      * Returns the HTTP Digest hash for a username
26:      *
27:      * This must be the A1 part of the digest hash
28:      * 
29:      * @param string $username 
30:      * @return string 
31:      */
32:     public function getDigestHash($username)
33:     {
34:         // We don't have the A1 hash stored, and we don't have the plaintext
35:         // passwords. Workaround?
36:     }
37: 
38:     public function getUserList()
39:     {
40:         if (!$this->_auth->hasCapability('list')) {
41:             return array();
42:         }
43: 
44:         $users = array();
45:         foreach ($this->_auth->listUsers() as $user) {
46:             $users[] = array('href' => $user);
47:             // We could potentially get {DAV:}displayname from the users'
48:             // identities, but we should only do that if this method is not
49:             // supposed to be called too often.
50:         }
51: 
52:         return $users;
53:     }
54: 
55: }
56: