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<?php
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//
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// +----------------------------------------------------------------------+
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// | PHP Version 4                                                        |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group                                |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.02 of the PHP license,      |
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// | that is bundled with this package in the file LICENSE, and is        |
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// | available at through the world-wide-web at                           |
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// | http://www.php.net/license/2_02.txt.                                 |
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// | If you did not receive a copy of the PHP license and are unable to   |
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// | obtain it through the world-wide-web, please send a note to          |
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// | license@php.net so we can mail you a copy immediately.               |
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// +----------------------------------------------------------------------+
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// | Authors: Martin Jansen <mj@php.net>                                  |
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// +----------------------------------------------------------------------+
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//
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// $Id: Container.php,v 1.15 2003/10/19 14:03:19 yavo Exp $
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//
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define("AUTH_METHOD_NOT_SUPPORTED", -4);
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/**
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 * Storage class for fetching login data
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 *
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 * @author   Martin Jansen <mj@php.net>
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 * @package  Auth
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 */
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class Auth_Container
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{
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    /**
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     * User that is currently selected from the storage container.
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     *
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     * @access public
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     */
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    var $activeUser = "";
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    // {{{ Constructor
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    /**
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     * Constructor
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     *
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     * Has to be overwritten by each storage class
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     *
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     * @access public
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     */
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    function Auth_Container()
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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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     * Fetch data from storage container
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     *
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     * Has to be overwritten by each storage class
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     *
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     * @access public
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     */
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    function fetchData()
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    {
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    }
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    // }}}
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    // {{{ verifyPassword()
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    /**
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     * Crypt and verfiy the entered password
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     *
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     * @param  string Entered password
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     * @param  string Password from the data container (usually this password
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     *                is already encrypted.
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     * @param  string Type of algorithm with which the password from
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     *                the container has been crypted. (md5, crypt etc.)
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     *                Defaults to "md5".
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     * @return bool   True, if the passwords match
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     */
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    function verifyPassword($password1, $password2, $cryptType = "md5")
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    {
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        switch ($cryptType) {
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        case "crypt" :
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            return (($password2 == "**" . $password1) ||
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                    (crypt($password1, $password2) == $password2)
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                    );
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            break;
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        case "none" :
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            return ($password1 == $password2);
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            break;
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        case "md5" :
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            return (md5($password1) == $password2);
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            break;
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        default :
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            if (function_exists($cryptType)) {
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                return ($cryptType($password1) == $password2);
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            }
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            else if (method_exists($this,$cryptType)) {
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                return ($this->$cryptType($password1) == $password2);
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            } else {
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                return false;
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            }
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            break;
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        }
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    }
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    // }}}
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    // {{{ listUsers()
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    /**
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     * List all users that are available from the storage container
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     */
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    function listUsers()
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    {
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        return AUTH_METHOD_NOT_SUPPORTED;
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    }
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    /**
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     * Returns a user assoc array
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     *
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     * Containers which want should overide this
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     *
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     * @param string The username
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     */
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    function getUser($username)
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    {
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        $users = $this->listUsers();
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        if($users === AUTH_METHOD_NOT_SUPPORTED){
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            return(AUTH_METHOD_NOT_SUPPORTED);
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        }
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        for($i=0;$c = count($users),$i<$c;$i++){
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            if($users[$i]['username'] == $username){
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                return($users[$i]);
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            }
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        }
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        return(false);
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    }
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    // }}}
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    // {{{ addUser()
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    /**
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     * Add a new user to the storage container
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     *
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     * @param string Username
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     * @param string Password
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     * @param array  Additional information
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     *
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     * @return boolean
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     */
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    function addUser($username, $password, $additional=null)
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    {
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        return AUTH_METHOD_NOT_SUPPORTED;
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    }
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    // }}}
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    // {{{ removeUser()
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    /**
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     * Remove user from the storage container
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     *
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     * @param string Username
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     */
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    function removeUser($username)
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    {
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        return AUTH_METHOD_NOT_SUPPORTED;
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    }
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    // }}}
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}
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?>