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