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126 lines
5.2 KiB
PHP
126 lines
5.2 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | Copyright (c) 2002-2003 Richard Heyes |
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// | All rights reserved. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | o Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | o Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution.|
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// | o The names of the authors may not be used to endorse or promote |
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// | products derived from this software without specific prior written |
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// | permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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// | |
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// +-----------------------------------------------------------------------+
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// | Author: Richard Heyes <richard@php.net> |
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// +-----------------------------------------------------------------------+
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//
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// $Id$
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/**
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* Client implementation of various SASL mechanisms
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*
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* @author Richard Heyes <richard@php.net>
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* @access public
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* @version 1.0
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* @package Auth_SASL
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*/
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require_once('PEAR.php');
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class Auth_SASL
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{
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/**
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* Factory class. Returns an object of the request
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* type.
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*
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* @param string $type One of: Anonymous
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* Plain
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* CramMD5
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* DigestMD5
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* SCRAM-* (any mechanism of the SCRAM family)
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* Types are not case sensitive
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*/
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function &factory($type)
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{
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switch (strtolower($type)) {
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case 'anonymous':
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$filename = 'Auth/SASL/Anonymous.php';
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$classname = 'Auth_SASL_Anonymous';
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break;
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case 'login':
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$filename = 'Auth/SASL/Login.php';
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$classname = 'Auth_SASL_Login';
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break;
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case 'plain':
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$filename = 'Auth/SASL/Plain.php';
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$classname = 'Auth_SASL_Plain';
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break;
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case 'external':
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$filename = 'Auth/SASL/External.php';
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$classname = 'Auth_SASL_External';
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break;
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case 'crammd5':
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// $msg = 'Deprecated mechanism name. Use IANA-registered name: CRAM-MD5.';
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// trigger_error($msg, E_USER_DEPRECATED);
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case 'cram-md5':
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$filename = 'Auth/SASL/CramMD5.php';
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$classname = 'Auth_SASL_CramMD5';
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break;
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case 'digestmd5':
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// $msg = 'Deprecated mechanism name. Use IANA-registered name: DIGEST-MD5.';
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// trigger_error($msg, E_USER_DEPRECATED);
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case 'digest-md5':
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// $msg = 'DIGEST-MD5 is a deprecated SASL mechanism as per RFC-6331. Using it could be a security risk.';
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// trigger_error($msg, E_USER_NOTICE);
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$filename = 'Auth/SASL/DigestMD5.php';
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$classname = 'Auth_SASL_DigestMD5';
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break;
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default:
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$scram = '/^SCRAM-(.{1,9})$/i';
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if (preg_match($scram, $type, $matches))
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{
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$hash = $matches[1];
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$filename = dirname(__FILE__) .'/SASL/SCRAM.php';
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$classname = 'Auth_SASL_SCRAM';
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$parameter = $hash;
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break;
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}
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return PEAR::raiseError('Invalid SASL mechanism type');
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break;
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}
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require_once($filename);
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if (isset($parameter))
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$obj = new $classname($parameter);
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else
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$obj = new $classname();
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return $obj;
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}
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}
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?>
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