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<?php
/**
* Copyright 1999-2014 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you did
* not receive this file, http://www.horde.org/licenses/lgpl21
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @author Max Kalika <max@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Auth
*/
/**
* The Horde_Auth_Ftp class provides an FTP implementation of the Horde
* authentication system.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @author Max Kalika <max@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Auth
*/
class Horde_Auth_Ftp extends Horde_Auth_Base
{
/**
* Constructor.
*
* @param array $params Optional parameters:
* <pre>
* 'hostspec' - (string) The hostname or IP address of the FTP server.
* DEFAULT: 'localhost'
* 'port' - (integer) The server port to connect to.
* DEFAULT: 21
* </pre>
*
* @throws Horde_Auth_Exception
*/
public function __construct(array $params = array())
{
if (!Horde_Util::extensionExists('ftp')) {
throw new Horde_Auth_Exception(__CLASS__ . ': Required FTP extension not found. Compile PHP with the --enable-ftp switch.');
}
$params = array_merge(array(
'hostspec' => 'localhost',
'port' => 21
), $params);
parent::__construct($params);
}
/**
* Find out if a set of login credentials are valid.
*
* @param string $userId The userId to check.
* @param array $credentials An array of login credentials. For FTP,
* this must contain a password entry.
*
* @throws Horde_Auth_Exception
*/
protected function _authenticate($userId, $credentials)
{
$ftp = @ftp_connect($this->_params['hostspec'], $this->_params['port']);
$res = $ftp && @ftp_login($ftp, $userId, $credentials['password']);
@ftp_quit($ftp);
if ($res) {
throw new Horde_Auth_Exception('', Horde_Auth::REASON_BADLOGIN);
}
}
}
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