* @category Horde
* @copyright 2004-2017 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL-2.1
* @package Auth
*/
class Horde_Auth_Pam extends Horde_Auth_Base
{
/**
* Constructor.
*
* @param array $params Optional parameters:
*
* 'service' - (string) The name of the PAM service to use when
* authenticating.
* DEFAULT: php
*
*
* @throws Horde_Auth_Exception
*/
public function __construct(array $params = array())
{
if (!Horde_Util::extensionExists('pam')) {
throw new Horde_Auth_Exception('PAM authentication is not available.');
}
if (!empty($params['service'])) {
ini_set('pam.servicename', $params['service']);
}
parent::__construct($params);
}
/**
* Find out if a set of login credentials are valid.
*
* @param string $userId The userId to check.
* @param array $credentials An array of login credentials.
*
* @throws Horde_Auth_Exception
*/
protected function _authenticate($userId, $credentials)
{
if (empty($credentials['password'])) {
throw new Horde_Auth_Exception('', Horde_Auth::REASON_BADLOGIN);
}
$error = null;
if (!pam_auth($userId, $credentials['password'], $error)) {
throw new Horde_Auth_Exception($error);
}
}
}