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<?php
/**
* Copyright 2000-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (GPL). If you
* did not receive this file, see http://www.horde.org/licenses/gpl.
*
* @category Horde
* @copyright 2000-2017 Horde LLC
* @license http://www.horde.org/licenses/gpl GPL
* @package Passwd
*/
/**
* Changes a password on a samba server.
*
* @author Rene Lund Jensen <Rene@lundjensen.net>
* @category Horde
* @copyright 2000-2017 Horde LLC
* @license http://www.horde.org/licenses/gpl GPL
* @package Passwd
*/
class Passwd_Driver_Smbpasswd extends Passwd_Driver
{
/**
* Socket connection resource.
*
* @var resource
*/
protected $_fp;
/**
*/
public function __construct(array $params = array())
{
parent::__construct(array_merge(array(
'host' => 'localhost',
'program' => '/usr/bin/smbpasswd'
), $params));
}
/**
* Connects a pipe to the sambaserver using the smbpasswd program.
*
* @param string $user The user to change the password for
* @param string $tmpfile The name of a temporary file in which to write
* output.
*
* @throws Passwd_Exception
*/
protected function _connect($user, $tmpfile)
{
if (!is_executable($this->_params['program'])) {
throw new Passwd_Exception(_("Passwd is not properly configured."));
}
$cmd = sprintf(
'%s -r %s -s -U "%s" > %s 2>&1',
$this->_params['program'],
$this->_params['host'],
$user,
$tmpfile
);
if (!($this->_fp = @popen($cmd, 'w'))) {
throw new Passwd_Exception(_("Could not open pipe to smbpasswd."));
}
}
/**
* Disconnects the pipe to the sambaserver.
*/
protected function _disconnect()
{
@pclose($this->_fp);
}
/**
* Sends a string to the waiting sambaserver.
*
* @param string $cmd The string to send to the server.
*
* @throws Passwd_Exception
*/
protected function _sendCommand($cmd)
{
if (fputs($this->_fp, $cmd . "\n") == -1) {
throw new Passwd_Exception(_("Error sending data to smbpasswd."));
}
sleep(1);
}
/**
*/
protected function _changePassword($user, $oldpass, $newpass)
{
// Clean up user name in case evil characters are in it.
$user = escapeshellcmd($user);
$tmpfile = Horde::getTempFile('smbpasswd');
$this->_connect($user, $tmpfile);
$this->_sendCommand($oldpass);
$this->_sendCommand($newpass);
$this->_sendCommand($newpass);
$this->_disconnect();
$res = file($tmpfile);
if (strstr($res[count($res) - 1], 'Password changed for user') === false) {
throw new Passwd_Exception(strrchr(trim($res[count($res) - 2]), ':'));
}
}
}
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