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1173 jp_milcent 1
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
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/**
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 * Storage driver for use against RADIUS servers
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 *
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 * PHP versions 4 and 5
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 *
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 * LICENSE: This source file is subject to version 3.01 of the PHP license
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 * that is available through the world-wide-web at the following URI:
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 * http://www.php.net/license/3_01.txt.  If you did not receive a copy of
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 * the PHP License and are unable to obtain it through the web, please
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 * send a note to license@php.net so we can mail you a copy immediately.
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 *
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 * @category   Authentication
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 * @package    Auth
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 * @author     Michael Bretterklieber <michael@bretterklieber.com>
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 * @author     Adam Ashley <aashley@php.net>
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 * @copyright  2001-2006 The PHP Group
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 * @license    http://www.php.net/license/3_01.txt  PHP License 3.01
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 * @version    CVS: $Id: RADIUS.php,v 1.3 2007-11-19 15:11:00 jp_milcent Exp $
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 * @link       http://pear.php.net/package/Auth
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 * @since      File available since Release 1.2.0
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 */
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/**
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 * Include Auth_Container base class
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 */
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require_once "Auth/Container.php";
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/**
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 * Include PEAR Auth_RADIUS package
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 */
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require_once "Auth/RADIUS.php";
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/**
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 * Storage driver for authenticating users against RADIUS servers.
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 *
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 * @category   Authentication
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 * @package    Auth
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 * @author     Michael Bretterklieber <michael@bretterklieber.com>
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 * @author     Adam Ashley <aashley@php.net>
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 * @copyright  2001-2006 The PHP Group
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 * @license    http://www.php.net/license/3_01.txt  PHP License 3.01
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 * @version    Release: 1.5.4  File: $Revision: 1.3 $
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 * @link       http://pear.php.net/package/Auth
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 * @since      Class available since Release 1.2.0
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 */
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class Auth_Container_RADIUS extends Auth_Container
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{
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    // {{{ properties
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    /**
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     * Contains a RADIUS object
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     * @var object
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     */
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    var $radius;
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    /**
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     * Contains the authentication type
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     * @var string
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     */
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    var $authtype;
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    // }}}
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    // {{{ Auth_Container_RADIUS() [constructor]
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    /**
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     * Constructor of the container class.
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     *
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     * $options can have these keys:
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     * 'servers'    an array containing an array: servername, port,
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     *              sharedsecret, timeout, maxtries
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     * 'configfile' The filename of the configuration file
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     * 'authtype'   The type of authentication, one of: PAP, CHAP_MD5,
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     *              MSCHAPv1, MSCHAPv2, default is PAP
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     *
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     * @param  $options associative array
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     * @return object Returns an error object if something went wrong
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     */
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    function Auth_Container_RADIUS($options)
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    {
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        $this->authtype = 'PAP';
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        if (isset($options['authtype'])) {
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            $this->authtype = $options['authtype'];
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        }
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        $classname = 'Auth_RADIUS_' . $this->authtype;
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        if (!class_exists($classname)) {
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            PEAR::raiseError("Unknown Authtype, please use one of: "
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                    ."PAP, CHAP_MD5, MSCHAPv1, MSCHAPv2!", 41, PEAR_ERROR_DIE);
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        }
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        $this->radius = new $classname;
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        if (isset($options['configfile'])) {
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            $this->radius->setConfigfile($options['configfile']);
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        }
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        $servers = $options['servers'];
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        if (is_array($servers)) {
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            foreach ($servers as $server) {
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                $servername     = $server[0];
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                $port           = isset($server[1]) ? $server[1] : 0;
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                $sharedsecret   = isset($server[2]) ? $server[2] : 'testing123';
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                $timeout        = isset($server[3]) ? $server[3] : 3;
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                $maxtries       = isset($server[4]) ? $server[4] : 3;
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                $this->radius->addServer($servername, $port, $sharedsecret, $timeout, $maxtries);
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            }
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        }
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        if (!$this->radius->start()) {
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            PEAR::raiseError($this->radius->getError(), 41, PEAR_ERROR_DIE);
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        }
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    }
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    // }}}
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    // {{{ fetchData()
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    /**
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     * Authenticate
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     *
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     * @param  string Username
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     * @param  string Password
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     * @return bool   true on success, false on reject
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     */
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    function fetchData($username, $password, $challenge = null)
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    {
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        $this->log('Auth_Container_RADIUS::fetchData() called.', AUTH_LOG_DEBUG);
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        switch($this->authtype) {
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            case 'CHAP_MD5':
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            case 'MSCHAPv1':
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                if (isset($challenge)) {
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                    $this->radius->challenge = $challenge;
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                    $this->radius->chapid    = 1;
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                    $this->radius->response  = pack('H*', $password);
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                } else {
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                    require_once 'Crypt/CHAP.php';
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                    $classname = 'Crypt_' . $this->authtype;
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                    $crpt = new $classname;
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                    $crpt->password = $password;
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                    $this->radius->challenge = $crpt->challenge;
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                    $this->radius->chapid    = $crpt->chapid;
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                    $this->radius->response  = $crpt->challengeResponse();
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                }
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                break;
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            case 'MSCHAPv2':
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                require_once 'Crypt/CHAP.php';
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                $crpt = new Crypt_MSCHAPv2;
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                $crpt->username = $username;
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                $crpt->password = $password;
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                $this->radius->challenge     = $crpt->authChallenge;
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                $this->radius->peerChallenge = $crpt->peerChallenge;
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                $this->radius->chapid        = $crpt->chapid;
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                $this->radius->response      = $crpt->challengeResponse();
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                break;
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            default:
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                $this->radius->password = $password;
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                break;
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        }
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        $this->radius->username = $username;
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        $this->radius->putAuthAttributes();
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        $result = $this->radius->send();
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        if (PEAR::isError($result)) {
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            return false;
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        }
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        $this->radius->getAttributes();
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//      just for debugging
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//      $this->radius->dumpAttributes();
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        return $result;
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    }
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    // }}}
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}
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?>