<?php
|
|
/*
|
Copyright (c) 2007, Till Brehm, projektfarm Gmbh
|
All rights reserved.
|
|
Redistribution and use in source and binary forms, with or without modification,
|
are permitted provided that the following conditions are met:
|
|
* Redistributions of source code must retain the above copyright notice,
|
this list of conditions and the following disclaimer.
|
* Redistributions in binary form must reproduce the above copyright notice,
|
this list of conditions and the following disclaimer in the documentation
|
and/or other materials provided with the distribution.
|
* Neither the name of ISPConfig nor the names of its contributors
|
may be used to endorse or promote products derived from this software without
|
specific prior written permission.
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
*/
|
|
class shelluser_jailkit_plugin {
|
|
//* $plugin_name and $class_name have to be the same then the name of this class
|
var $plugin_name = 'shelluser_jailkit_plugin';
|
var $class_name = 'shelluser_jailkit_plugin';
|
|
//* This function is called during ispconfig installation to determine
|
// if a symlink shall be created for this plugin.
|
function onInstall() {
|
global $conf;
|
|
if($conf['services']['web'] == true) {
|
return true;
|
} else {
|
return false;
|
}
|
|
}
|
|
|
/*
|
This function is called when the plugin is loaded
|
*/
|
|
function onLoad() {
|
global $app;
|
|
/*
|
Register for the events
|
*/
|
|
$app->plugins->registerEvent('shell_user_insert',$this->plugin_name,'insert');
|
$app->plugins->registerEvent('shell_user_update',$this->plugin_name,'update');
|
$app->plugins->registerEvent('shell_user_delete',$this->plugin_name,'delete');
|
|
|
}
|
|
//* This function is called, when a shell user is inserted in the database
|
function insert($event_name,$data) {
|
global $app, $conf;
|
|
$app->uses('system');
|
|
if($app->system->is_user($data['new']['username'])) {
|
|
/**
|
* Setup Jailkit Chroot System If Enabled
|
*/
|
if ($data['new']['chroot'] == "jailkit")
|
{
|
// load the server configuration options
|
$app->uses("getconf");
|
$this->data = $data;
|
$this->app = $app;
|
$this->jailkit_config = $app->getconf->get_server_config($conf["server_id"], 'jailkit');
|
|
$this->_update_website_security_level();
|
|
$this->_setup_jailkit_chroot();
|
|
$this->_add_jailkit_user();
|
|
$command .= 'usermod -U '.escapeshellcmd($data['new']['username']);
|
exec($command);
|
|
$this->_update_website_security_level();
|
}
|
|
$app->log("Jailkit Plugin -> insert username:".$data['new']['username'],LOGLEVEL_DEBUG);
|
|
} else {
|
$app->log("Jailkit Plugin -> insert username:".$data['new']['username']." skipped, the user does not exist.",LOGLEVEL_WARN);
|
}
|
|
}
|
|
//* This function is called, when a shell user is updated in the database
|
function update($event_name,$data) {
|
global $app, $conf;
|
|
$app->uses('system');
|
|
if($app->system->is_user($data['new']['username'])) {
|
|
/**
|
* Setup Jailkit Chroot System If Enabled
|
*/
|
if ($data['new']['chroot'] == "jailkit")
|
{
|
// load the server configuration options
|
$app->uses("getconf");
|
$this->data = $data;
|
$this->app = $app;
|
$this->jailkit_config = $app->getconf->get_server_config($conf["server_id"], 'jailkit');
|
|
$this->_update_website_security_level();
|
|
$this->_setup_jailkit_chroot();
|
$this->_add_jailkit_user();
|
|
$this->_update_website_security_level();
|
}
|
|
$app->log("Jailkit Plugin -> update username:".$data['new']['username'],LOGLEVEL_DEBUG);
|
|
} else {
|
$app->log("Jailkit Plugin -> update username:".$data['new']['username']." skipped, the user does not exist.",LOGLEVEL_WARN);
|
}
|
|
}
|
|
//* This function is called, when a shell user is deleted in the database
|
/**
|
* TODO: Remove chroot user home and from the chroot passwd file
|
*/
|
function delete($event_name,$data) {
|
global $app, $conf;
|
|
$app->uses('system');
|
|
if ($data['old']['chroot'] == "jailkit")
|
{
|
$app->uses("getconf");
|
$this->jailkit_config = $app->getconf->get_server_config($conf["server_id"], 'jailkit');
|
|
$jailkit_chroot_userhome = $this->_get_home_dir($data['old']['username']);
|
|
//commented out proved to be dangerous on config errors
|
//exec('rm -rf '.$data['old']['dir'].$jailkit_chroot_userhome);
|
|
if(@is_dir($data['old']['dir'].$jailkit_chroot_userhome)) {
|
$command = 'userdel';
|
$command .= ' '.escapeshellcmd($data['old']['username']);
|
exec($command);
|
$app->log("Jailkit Plugin -> delete chroot home:".$data['old']['dir'].$jailkit_chroot_userhome,LOGLEVEL_DEBUG);
|
}
|
|
}
|
|
$app->log("Jailkit Plugin -> delete username:".$data['old']['username'],LOGLEVEL_DEBUG);
|
|
|
}
|
|
function _setup_jailkit_chroot()
|
{
|
//check if the chroot environment is created yet if not create it with a list of program sections from the config
|
if (!is_dir($this->data['new']['dir'].'/etc/jailkit'))
|
{
|
$command = '/usr/local/ispconfig/server/scripts/create_jailkit_chroot.sh';
|
$command .= ' '.escapeshellcmd($this->data['new']['dir']);
|
$command .= ' \''.$this->jailkit_config['jailkit_chroot_app_sections'].'\'';
|
exec($command);
|
|
$this->app->log("Added jailkit chroot with command: ".$command,LOGLEVEL_DEBUG);
|
|
$this->_add_jailkit_programs();
|
|
//add bash.bashrc script
|
//we need to collect the domain name to be used as the HOSTNAME in the bashrc script
|
$web = $this->app->db->queryOneRecord("SELECT domain FROM web_domain WHERE domain_id = ".intval($this->data['new']["parent_domain_id"]));
|
|
$this->app->load('tpl');
|
|
$tpl = new tpl();
|
$tpl->newTemplate("bash.bashrc.master");
|
|
$tpl->setVar('jailkit_chroot',true);
|
$tpl->setVar('domain',$web['domain']);
|
$tpl->setVar('home_dir',$this->_get_home_dir(""));
|
|
$bashrc = escapeshellcmd($this->data['new']['dir']).'/etc/bash.bashrc';
|
if(@is_file($bashrc)) exec('rm '.$bashrc);
|
|
file_put_contents($bashrc,$tpl->grab());
|
unset($tpl);
|
|
$this->app->log("Added bashrc scrpt : ".$bashrc,LOGLEVEL_DEBUG);
|
|
$tpl = new tpl();
|
$tpl->newTemplate("motd.master");
|
|
$tpl->setVar('domain',$web['domain']);
|
|
$motd = escapeshellcmd($this->data['new']['dir']).'/var/run/motd';
|
if(@is_file($motd)) exec('rm '.$motd);
|
|
file_put_contents($motd,$tpl->grab());
|
|
}
|
}
|
|
function _add_jailkit_programs()
|
{
|
//copy over further programs and its libraries
|
$command = '/usr/local/ispconfig/server/scripts/create_jailkit_programs.sh';
|
$command .= ' '.escapeshellcmd($this->data['new']['dir']);
|
$command .= ' \''.$this->jailkit_config['jailkit_chroot_app_programs'].'\'';
|
exec($command);
|
|
$this->app->log("Added programs to jailkit chroot with command: ".$command,LOGLEVEL_DEBUG);
|
}
|
|
function _get_home_dir($username)
|
{
|
return str_replace("[username]",escapeshellcmd($username),$this->jailkit_config["jailkit_chroot_home"]);
|
}
|
|
function _add_jailkit_user()
|
{
|
//add the user to the chroot
|
$jailkit_chroot_userhome = $this->_get_home_dir($this->data['new']['username']);
|
$jailkit_chroot_puserhome = $this->_get_home_dir($this->data['new']['puser']);
|
|
if(!is_dir($this->data['new']['dir'].'/etc')) mkdir($this->data['new']['dir'].'/etc');
|
if(!is_file($this->data['new']['dir'].'/etc/passwd')) exec('touch '.$this->data['new']['dir'].'/etc/passwd');
|
|
// IMPORTANT!
|
// ALWAYS create the user. Even if the user was created before
|
// if we check if the user exists, then a update (no shell -> jailkit) will not work
|
// and the user has FULL ACCESS to the root of the server!
|
$command = '/usr/local/ispconfig/server/scripts/create_jailkit_user.sh';
|
$command .= ' '.escapeshellcmd($this->data['new']['username']);
|
$command .= ' '.escapeshellcmd($this->data['new']['dir']);
|
$command .= ' '.$jailkit_chroot_userhome;
|
$command .= ' '.escapeshellcmd($this->data['new']['shell']);
|
$command .= ' '.$this->data['new']['puser'];
|
$command .= ' '.$jailkit_chroot_puserhome;
|
exec($command);
|
|
$this->app->log("Added jailkit user to chroot with command: ".$command,LOGLEVEL_DEBUG);
|
|
exec("mkdir -p ".escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_userhome));
|
exec("chown ".$this->data['new']['username'].":".$this->data['new']['pgroup']." ".escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_userhome));
|
|
$this->app->log("Added created jailkit user home in : ".$this->data['new']['dir'].$jailkit_chroot_userhome,LOGLEVEL_DEBUG);
|
|
exec("mkdir -p ".escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_puserhome));
|
exec("chown ".$this->data['new']['puser'].":".$this->data['new']['pgroup']." ".escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_puserhome));
|
|
$this->app->log("Added created jailkit parent user home in : ".$this->data['new']['dir'].$jailkit_chroot_puserhome,LOGLEVEL_DEBUG);
|
}
|
|
//* Update the website root directory permissions depending on the security level
|
function _update_website_security_level() {
|
global $app,$conf;
|
|
// load the server configuration options
|
$app->uses("getconf");
|
$web_config = $app->getconf->get_server_config($conf["server_id"], 'web');
|
|
// Get the parent website of this shell user
|
$web = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".$this->data['new']['parent_domain_id']);
|
|
//* If the security level is set to high
|
if($web_config['security_level'] == 20) {
|
$this->_exec("chmod 755 ".escapeshellcmd($web["document_root"]));
|
$this->_exec("chown root:root ".escapeshellcmd($web["document_root"]));
|
}
|
|
}
|
|
//* Wrapper for exec function for easier debugging
|
private function _exec($command) {
|
global $app;
|
$app->log("exec: ".$command,LOGLEVEL_DEBUG);
|
exec($command);
|
}
|
|
} // end class
|
|
?>
|
