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<?php
/**
* @version $Id: ldap.php 10709 2008-08-21 09:58:52Z eddieajau $
* @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
*
* @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();
}
}