LDAPAccountManager/lam/lib/lamdaemon.inc

148 lines
4.8 KiB
PHP

<?php
/*
$Id$
This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
Copyright (C) 2004 - 2010 Roland Gruber
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* This file includes functions to control lamdaemon.
*
* @author Tilo Lutz
* @author Roland Gruber
* @author Thomas Manninger
*
* @package modules
*/
/**
* Sends commands to lamdaemon script.
*
* @param array $command command to execute
* @param string $server remote server
* @return array Output of lamdaemon
*
*/
function lamdaemon($command, $server) {
// remove the following line to restore SSH via PHP SSH2
return lamdaemonSeclib($command, $server);
if (!function_exists('ssh2_connect')) {
return array('ERROR,' . _('This module requires the PHP ssh2 extension.'));
}
// get username and password of the current lam-admin
$credentials = $_SESSION['ldap']->decrypt_login();
$serverNameParts = explode(",", $server);
if (sizeof($serverNameParts) > 1) {
$handle = @ssh2_connect($serverNameParts[0], $serverNameParts[1]);
}
else {
$handle = @ssh2_connect($server);
}
if ($handle) {
$sr = @ldap_read($_SESSION['ldap']->server(), $credentials[0], "objectClass=posixAccount", array('uid'), 0, 0, 0, LDAP_DEREF_NEVER);
if (!$sr) {
$return = array("ERROR," . _("Your LAM admin user must be a valid Unix account to work with lamdaemon!") . ",");
return $return;
}
$entry = @ldap_get_entries($_SESSION['ldap']->server(), $sr);
if (!isset($entry[0]['uid'][0])) {
$return = array("ERROR," . _("Your LAM admin user must be a valid Unix account to work with lamdaemon!") . ",");
return $return;
}
$userName = $entry[0]['uid'][0];
if (@ssh2_auth_password($handle, $userName, $credentials[1])) {
$shell = ssh2_exec($handle, "sudo " . $_SESSION['config']->get_scriptPath() . ' ' . escapeshellarg($command));
$return = array();
$time = time() + 30;
while (sizeof($return) < 1) {
if ($time < time()) {
$return = array("ERROR," . _("Timeout while executing lamdaemon commands!") . ",");
return $return;
}
usleep(100);
$read = explode("\n", trim(fread($shell, 100000)));
if ((sizeof($read) == 1) && (!isset($read[0]) || ($read[0] == ""))) continue;
for ($i = 0; $i < sizeof($read); $i++) {
$return[] = $read[$i];
}
}
return $return;
}
else {
$return = array("ERROR," . _('Unable to connect to remote server!') . "," . $server);
return $return;
}
}
else {
$return = array("ERROR," . _('Unable to connect to remote server!') . "," . $server);
return $return;
}
}
/**
* Sends commands to lamdaemon script.
*
* @param array $command command to execute
* @param string $server remote server
* @return array Output of lamdaemon
*
*/
function lamdaemonSeclib($command, $server) {
// add phpseclib to include path
set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/3rdParty/phpseclib');
include_once('Net/SSH2.php');
// get username and password of the current lam-admin
$credentials = $_SESSION['ldap']->decrypt_login();
$serverNameParts = explode(",", $server);
if (sizeof($serverNameParts) > 1) {
$handle = new Net_SSH2($serverNameParts[0], $serverNameParts[1]);
}
else {
$handle = new Net_SSH2($server);
}
if ($handle) {
$sr = @ldap_read($_SESSION['ldap']->server(), $credentials[0], "objectClass=posixAccount", array('uid'), 0, 0, 0, LDAP_DEREF_NEVER);
if (!$sr) {
$return = array("ERROR," . _("Your LAM admin user must be a valid Unix account to work with lamdaemon!") . ",");
return $return;
}
$entry = @ldap_get_entries($_SESSION['ldap']->server(), $sr);
if (!isset($entry[0]['uid'][0])) {
$return = array("ERROR," . _("Your LAM admin user must be a valid Unix account to work with lamdaemon!") . ",");
return $return;
}
$userName = $entry[0]['uid'][0];
if ($handle->login($userName, $credentials[1])) {
$output = $handle->exec("sudo " . $_SESSION['config']->get_scriptPath() . ' ' . escapeshellarg($command));
$return = array($output);
return $return;
}
else {
$return = array("ERROR," . _('Unable to connect to remote server!') . "," . $server);
return $return;
}
}
else {
$return = array("ERROR," . _('Unable to connect to remote server!') . "," . $server);
return $return;
}
}
?>