1: <?php
 2: /**
 3:  * The Horde_Token:: class provides a common abstracted interface into the
 4:  * various token generation mediums. It also includes all of the
 5:  * functions for retrieving, storing, and checking tokens.
 6:  *
 7:  * Copyright 1999-2012 Horde LLC (http://www.horde.org/)
 8:  *
 9:  * See the enclosed file COPYING for license information (LGPL). If you
10:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
11:  *
12:  * @author   Max Kalika <max@horde.org>
13:  * @author   Chuck Hagenbuch <chuck@horde.org>
14:  * @category Horde
15:  * @package  Token
16:  */
17: class Horde_Token
18: {
19:     /**
20:      * Generates a connection id and returns it.
21:      *
22:      * @param string $seed  A unique ID to be included in the token.
23:      *
24:      * @return string  The generated id string.
25:      */
26:     static public function generateId($seed = '')
27:     {
28:         return Horde_Url::uriB64Encode(pack('H*', hash('sha1', uniqid(mt_rand()) . $seed . (isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : ''))));
29:     }
30: 
31: }
32: