PC World 2008 September/PCWorld_2008-09_cd.bin/domacnost a kancelar/joomla/Joomla_1.5.4-Stable-Full_Package.exe/plugins/authentication/ldap.php

PHP Script | 2008-07-06 | 5KB | 164 lines

<?php
/**
* @version        $Id: ldap.php 10381 2008-06-01 03:35:53Z pasamio $
* @package        Joomla
* @subpackage    JFramework
* @copyright    Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
* @license        GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/

// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die( 'Restricted access' );

jimport( 'joomla.plugin.plugin' );

/**
 * LDAP Authentication Plugin
 *
 * @author Sam Moffatt <[e-mail]>
 * @package        Joomla
 * @subpackage    JFramework
 * @since 1.5
 */

class plgAuthenticationLdap extends JPlugin
{
    /**
     * Constructor
     *
     * For php4 compatability we must not use the __constructor as a constructor for plugins
     * because func_get_args ( void ) returns a copy of all passed arguments NOT references.
     * This causes problems with cross-referencing necessary for the observer design pattern.
     *
     * @param     object $subject The object to observe
     * @param     array  $config  An array that holds the plugin configuration
     * @since 1.5
     */
    function plgAuthenticationLdap(& $subject, $config)
    {
        parent::__construct($subject, $config);
    }

    /**
     * This method should handle any authentication and report back to the subject
     *
     * @access    public
     * @param   array     $credentials Array holding the user credentials
     * @param     array   $options     Array of extra options
     * @param    object    $response    Authentication response object
     * @return    object    boolean
     * @since 1.5
     */
    function onAuthenticate( $credentials, $options, &$response )
    {
        // Initialize variables
        $userdetails = null;
        $success = 0;
        $userdetails = Array();

        // For JLog
        $response->type = 'LDAP';
        // LDAP does not like Blank passwords (tries to Anon Bind which is bad)
        if (empty($credentials['password']))
        {
            $response->status = JAUTHENTICATE_STATUS_FAILURE;
            $response->error_message = 'LDAP can not have blank password';
            return false;
        }

        // load plugin params info
        $ldap_email     = $this->params->get('ldap_email');
        $ldap_fullname    = $this->params->get('ldap_fullname');
        $ldap_uid        = $this->params->get('ldap_uid');
        $auth_method    = $this->params->get('auth_method');

        jimport('joomla.client.ldap');
        $ldap = new JLDAP($this->params);

        if (!$ldap->connect())
        {
            $response->status = JAUTHENTICATE_STATUS_FAILURE;
            $response->error_message = 'Unable to connect to LDAP server';
            return;
        }

        switch($auth_method)
        {
            case 'search':
            {
                // Bind using Connect Username/password
                // Force anon bind to mitigate misconfiguration like [#7119]
                if(strlen($this->params->get('username'))) $bindtest = $ldap->bind();
                else $bindtest = $ldap->anonymous_bind();


                if($bindtest)
                {
                    // Search for users DN
                    $binddata = $ldap->simple_search(str_replace("[search]", $credentials['username'], $this->params->get('search_string')));
                    if(isset($binddata[0]) && isset($binddata[0]['dn'])) {
                        // Verify Users Credentials
                        $success = $ldap->bind($binddata[0]['dn'],$credentials['password'],1);
                        // Get users details
                        $userdetails = $binddata;
                    } else {
                        $response->status = JAUTHENTICATE_STATUS_FAILURE;
                        $response->error_message = 'Unable to find user';
                    }
                }
                else
                {
                    $response->status = JAUTHENTICATE_STATUS_FAILURE;
                    $response->error_message = 'Unable to bind to LDAP';
                }
            }    break;

            case 'bind':
            {
                // We just accept the result here
                $success = $ldap->bind($credentials['username'],$credentials['password']);
                if($success) {
                    $userdetails = $ldap->simple_search(str_replace("[search]", $credentials['username'], $this->params->get('search_string')));
                } else {
                    $response->status = JAUTHENTICATE_STATUS_FAILURE;
                    $response->error_message = 'Failed binding to LDAP server';
                }
            }    break;
        }

        if(!$success)
        {
            $response->status = JAUTHENTICATE_STATUS_FAILURE;
            if(!strlen($response->error_message)) $response->error_message = 'Incorrect username/password';
        }
        else
        {
            // Grab some details from LDAP and return them
            if (isset($userdetails[0][$ldap_uid][0])) {
                $response->username = $userdetails[0][$ldap_uid][0];
            }

            if (isset($userdetails[0][$ldap_email][0])) {
                $response->email = $userdetails[0][$ldap_email][0];
            }

            if(isset($userdetails[0][$ldap_fullname][0])) {
                $response->fullname = $userdetails[0][$ldap_fullname][0];
            } else {
                $response->fullname = $credentials['username'];
            }

            // Were good - So say so.
            $response->status        = JAUTHENTICATE_STATUS_SUCCESS;
            $response->error_message = '';
        }

        $ldap->close();
    }
}