130 lines
3.8 KiB
PHP
130 lines
3.8 KiB
PHP
<?php
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/*
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$Id$
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This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2004 - 2016 Roland Gruber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* This file includes functions to control lamdaemon.
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*
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* @author Tilo Lutz
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* @author Roland Gruber
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* @author Thomas Manninger
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*
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* @package modules
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*/
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/**
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* Sends commands to lamdaemon script.
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*
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* @param array $command command to execute
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* @param string $server remote server
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* @return array Output of lamdaemon
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*
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*/
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function lamdaemon($command, $server) {
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if ($server == '') {
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return array();
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}
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// add phpseclib to include path
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set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/3rdParty/phpseclib');
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include_once('Net/SSH2.php');
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try {
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$handle = lamConnectSSH($server);
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}
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catch (Exception $e) {
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return array("ERROR," . $e->getMessage() . "," . $server);
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}
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$output = $handle->exec("sudo " . $_SESSION['config']->get_scriptPath() . ' ' . escapeshellarg($command));
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return array($output);
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}
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/**
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* Connects to the given SSH server.
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*
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* @param String $server server name (e.g. localhost or localhost,1234)
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* @return object handle
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*/
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function lamConnectSSH($server) {
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// add phpseclib to include path
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set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/3rdParty/phpseclib');
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include_once('Net/SSH2.php');
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include_once('Crypt/RSA.php');
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$serverNameParts = explode(",", $server);
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$handle = false;
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if (sizeof($serverNameParts) > 1) {
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$handle = @new Net_SSH2($serverNameParts[0], $serverNameParts[1]);
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}
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else {
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$handle = @new Net_SSH2($server);
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}
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if (!$handle) {
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throw new Exception(_("Unable to connect to remote server!"));
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}
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lamLoginSSH($handle);
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return $handle;
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}
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/**
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* Performs a login to the provided SSH handle.
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*
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* @param handle $handle SSH handle
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* @throws Exception login failed
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*/
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function lamLoginSSH($handle) {
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$username = $_SESSION['config']->getScriptUserName();
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$credentials = $_SESSION['ldap']->decrypt_login();
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if (empty($username)) {
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// get user name from current LAM user
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$sr = @ldap_read($_SESSION['ldap']->server(), $credentials[0], "objectClass=posixAccount", array('uid'), 0, 0, 0, LDAP_DEREF_NEVER);
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if ($sr) {
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$entry = @ldap_get_entries($_SESSION['ldap']->server(), $sr);
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$username = $entry[0]['uid'][0];
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}
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if (empty($username)) {
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throw new Exception(sprintf(_("Your LAM admin user (%s) must be a valid Unix account to work with lamdaemon!"), getAbstractDN($credentials[0])));
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}
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}
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$password = $credentials[1];
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$keyPath = $_SESSION['config']->getScriptSSHKey();
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if (!empty($keyPath)) {
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// use key authentication
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if (!file_exists($keyPath) || !is_readable($keyPath)) {
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throw new Exception(sprintf(_("Unable to read %s."), htmlspecialchars($keyPath)));
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}
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$key = file_get_contents($keyPath);
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$rsa = new Crypt_RSA();
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$keyPassword = $_SESSION['config']->getScriptSSHKeyPassword();
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if (!empty($keyPassword)) {
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$rsa->setPassword($keyPassword);
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}
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if (!$rsa->loadKey($key)) {
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throw new Exception(sprintf(_("Unable to load key %s."), htmlspecialchars($keyPath)));
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}
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$password = $rsa;
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}
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$login = @$handle->login($username, $password);
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if (!$login) {
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throw new Exception(_("Unable to login to remote server!"));
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}
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}
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?>
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