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<?php
/**
* The Net_IMSP_Auth_imtest class for IMSP authentication.
*
* Required parameters:<pre>
* 'username' Username to logon to IMSP server as.
* 'password' Password for current user.
* 'server' The hostname of the IMSP server.
* 'port' The port of the IMSP server.
* 'socket' The named socket to use for connection
* 'command' Path to the imtest command on localhost
* 'auth_mechanism' Authentication method to use with imtest</pre>
*
* $Horde: framework/Net_IMSP/IMSP/Auth/imtest.php,v 1.12.2.8 2009/01/06 15:23:27 jan Exp $
*
* Copyright 2005-2007 Liam Hoekenga <liamr@umich.edu>
* Copyright 2003-2009 The Horde Project (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* @author Liam Hoekenga <liamr@umich.edu>
* @author Michael Rubinsky <mrubinsk@horde.org>
* @package Net_IMSP
*/
class Net_IMSP_Auth_imtest extends Net_IMSP_Auth {
/**
* Private authentication function. Provides actual
* authentication code.
*
* @access private
* @param mixed $params Hash of IMSP parameters.
*
* @return mixed Net_IMSP object connected to server if successful,
* PEAR_Error on failure.
*/
function &_authenticate($params)
{
$imsp = &Net_IMSP::singleton('none', $params);
$command = '';
$error_return = '';
if (strtolower($params['auth_mechanism']) == 'gssapi' &&
isset($_SERVER['KRB5CCNAME'])) {
$command .= 'KRB5CCNAME=' . $_SERVER['KRB5CCNAME'];
}
$command .= ' ' . $params['command'].
' -m ' . $params['auth_mechanism'] .
' -u ' . escapeshellarg($params['username']) .
' -a ' . escapeshellarg($params['username']) .
' -w ' . escapeshellarg($params['password']).
' -p ' . $params['port'] .
' -X ' . $params['socket'] .
' ' . $params['server'];
$conn_attempts = 0;
while ($conn_attempts++ < 4) {
$attempts = 0;
if (!file_exists($params['socket'])) {
exec($command . ' > /dev/null 2>&1');
sleep(1);
while (!file_exists($params['socket'])) {
usleep(200000);
if ($attempts++ > 5) {
$error_return = ': No socket after 10 seconds of trying!';
continue 2;
}
}
}
$fp = @fsockopen($params['socket'], 0, $error_number, $error_string, 30);
$error_return = $error_string;
if ($fp) break;
unlink($params['socket']);
}
//Failure?
if (!empty($error_return)) {
return $imsp->imspError('Connection to IMSP host failed.' . ': ' . $error_return, __FILE__, __LINE__);
}
//Success
$imsp->_stream = $fp;
return $imsp;
}
/**
* Force a logout command to the imsp stream.
*
*/
function logout()
{
$this->_imsp->logout();
}
/**
* Returns the driver type.
*
* @return string The type of this IMSP_Auth driver.
*/
function getDriverType()
{
return 'imtest';
}
}
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