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PHP Script  |  2004-03-24  |  6KB  |  155 lines
  1. <?php
  2. //
  3. // +----------------------------------------------------------------------+
  4. // | PHP Version 4                                                        |
  5. // +----------------------------------------------------------------------+
  6. // | Copyright (c) 1997-2003 The PHP Group                                |
  7. // +----------------------------------------------------------------------+
  8. // | This source file is subject to version 2.02 of the PHP license,      |
  9. // | that is bundled with this package in the file LICENSE, and is        |
  10. // | available at through the world-wide-web at                           |
  11. // | http://www.php.net/license/2_02.txt.                                 |
  12. // | If you did not receive a copy of the PHP license and are unable to   |
  13. // | obtain it through the world-wide-web, please send a note to          |
  14. // | license@php.net so we can mail you a copy immediately.               |
  15. // +----------------------------------------------------------------------+
  16. // | Authors: Michael Bretterklieber <michael@bretterklieber.com>         |
  17. // +----------------------------------------------------------------------+
  18. //
  19. // $Id: RADIUS.php,v 1.7 2003/05/13 19:27:35 mbretter Exp $
  20. //
  21.  
  22. require_once "Auth/Container.php";
  23. require_once "Auth/RADIUS.php";
  24.  
  25. /**
  26.  * Storage driver for authenticating users against RADIUS servers.
  27.  *
  28.  * @author  Michael Bretterklieber <michael@bretterklieber.com>
  29.  * @access  public
  30.  * @version $Revision: 1.7 $
  31.  */
  32. class Auth_Container_RADIUS extends Auth_Container
  33. {
  34.  
  35.     /**
  36.      * Contains a RADIUS object
  37.      * @var object
  38.      */
  39.     var $radius;
  40.     
  41.     /**
  42.      * Contains the authentication type
  43.      * @var string
  44.      */
  45.     var $authtype;    
  46.  
  47.     /**
  48.      * Constructor of the container class.
  49.      *
  50.      * $options can have these keys:
  51.      * 'servers'    an array containing an array: servername, port,
  52.      *              sharedsecret, timeout, maxtries
  53.      * 'configfile' The filename of the configuration file
  54.      * 'authtype'   The type of authentication, one of: PAP, CHAP_MD5,
  55.      *              MSCHAPv1, MSCHAPv2, default is PAP
  56.      *
  57.      * @param  $options associative array
  58.      * @return object Returns an error object if something went wrong
  59.      */
  60.     function Auth_Container_RADIUS($options)
  61.     {
  62.         $this->authtype = 'PAP';
  63.         if (isset($options['authtype'])) {
  64.             $this->authtype = $options['authtype'];
  65.         }
  66.         $classname = 'Auth_RADIUS_' . $this->authtype;
  67.         if (!class_exists($classname)) {
  68.             PEAR::raiseError("Unknown Authtype, please use on of: PAP, CHAP_MD5, MSCHAPv1, MSCHAPv2!",
  69.                                     41, PEAR_ERROR_DIE);
  70.         }
  71.         
  72.         $this->radius = new $classname;
  73.  
  74.         if (isset($options['configfile'])) {
  75.             $this->radius->setConfigfile($options['configfile']);
  76.         }
  77.  
  78.         $servers = $options['servers'];
  79.         if (is_array($servers)) {
  80.             foreach ($servers as $server) {
  81.                 $servername     = $server[0];
  82.                 $port           = isset($server[1]) ? $server[1] : 0;
  83.                 $sharedsecret   = isset($server[2]) ? $server[2] : 'testing123';
  84.                 $timeout        = isset($server[3]) ? $server[3] : 3;
  85.                 $maxtries       = isset($server[4]) ? $server[4] : 3;
  86.                 $this->radius->addServer($servername, $port, $sharedsecret, $timeout, $maxtries);
  87.             }
  88.         }
  89.         
  90.         if (!$this->radius->start()) {
  91.             PEAR::raiseError($this->radius->getError(), 41, PEAR_ERROR_DIE);
  92.         }
  93.     }
  94.  
  95.     /**
  96.      * Authenticate
  97.      *
  98.      * @param  string Username
  99.      * @param  string Password
  100.      * @return bool   true on success, false on reject
  101.      */
  102.     function fetchData($username, $password, $challenge = null)
  103.     {
  104.         switch($this->authtype) {
  105.         case 'CHAP_MD5':
  106.         case 'MSCHAPv1':
  107.             if (isset($challenge)) {
  108.                 echo $password;
  109.                 $this->radius->challenge = $challenge;
  110.                 $this->radius->chapid    = 1;
  111.                 $this->radius->response  = pack('H*', $password);
  112.             } else {
  113.                 require_once 'Crypt_CHAP/CHAP.php';
  114.                 $classname = 'Crypt_' . $this->authtype;
  115.                 $crpt = new $classname;
  116.                 $crpt->password = $password;
  117.                 $this->radius->challenge = $crpt->challenge;
  118.                 $this->radius->chapid    = $crpt->chapid;
  119.                 $this->radius->response  = $crpt->challengeResponse();
  120.                 break;
  121.             }
  122.  
  123.         case 'MSCHAPv2':
  124.             require_once 'Crypt_CHAP/CHAP.php';
  125.             $crpt = new Crypt_MSCHAPv2;
  126.             $crpt->username = $username;
  127.             $crpt->password = $password;
  128.             $this->radius->challenge     = $crpt->authChallenge;
  129.             $this->radius->peerChallenge = $crpt->peerChallenge;
  130.             $this->radius->chapid        = $crpt->chapid;
  131.             $this->radius->response      = $crpt->challengeResponse();
  132.             break;
  133.  
  134.         default:
  135.             $this->radius->password = $password;
  136.             break;
  137.         }
  138.  
  139.         $this->radius->username = $username;
  140.  
  141.         $this->radius->putAuthAttributes();
  142.         $result = $this->radius->send();
  143.         if (PEAR::isError($result)) {
  144.             return false;
  145.         }
  146.  
  147.         $this->radius->getAttributes();
  148. //      just for debugging
  149. //      $this->radius->dumpAttributes();
  150.  
  151.         return $result;
  152.     }
  153. }
  154. ?>
  155.