nginx_plugin.inc.php

<?php

/*
Copyright (c) 2007 - 2012, 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 nginx_plugin {

	var $plugin_name = 'nginx_plugin';
	var $class_name = 'nginx_plugin';

	// private variables
	var $action = '';
	var $ssl_certificate_changed = false;
	var $update_letsencrypt = false;

	//* 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 && !@is_link('/usr/local/ispconfig/server/plugins-enabled/apache2_plugin.inc.php')) {
			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('web_domain_insert', $this->plugin_name, 'ssl');
		$app->plugins->registerEvent('web_domain_update', $this->plugin_name, 'ssl');
		$app->plugins->registerEvent('web_domain_delete', $this->plugin_name, 'ssl');

		$app->plugins->registerEvent('web_domain_insert', $this->plugin_name, 'insert');
		$app->plugins->registerEvent('web_domain_update', $this->plugin_name, 'update');
		$app->plugins->registerEvent('web_domain_delete', $this->plugin_name, 'delete');

		$app->plugins->registerEvent('server_ip_insert', $this->plugin_name, 'server_ip');
		$app->plugins->registerEvent('server_ip_update', $this->plugin_name, 'server_ip');
		$app->plugins->registerEvent('server_ip_delete', $this->plugin_name, 'server_ip');

		/*
		$app->plugins->registerEvent('webdav_user_insert',$this->plugin_name,'webdav');
		$app->plugins->registerEvent('webdav_user_update',$this->plugin_name,'webdav');
		$app->plugins->registerEvent('webdav_user_delete',$this->plugin_name,'webdav');
		*/

		$app->plugins->registerEvent('client_delete', $this->plugin_name, 'client_delete');

		$app->plugins->registerEvent('web_folder_user_insert', $this->plugin_name, 'web_folder_user');
		$app->plugins->registerEvent('web_folder_user_update', $this->plugin_name, 'web_folder_user');
		$app->plugins->registerEvent('web_folder_user_delete', $this->plugin_name, 'web_folder_user');

		$app->plugins->registerEvent('web_folder_update', $this->plugin_name, 'web_folder_update');
		$app->plugins->registerEvent('web_folder_delete', $this->plugin_name, 'web_folder_delete');
	}

	// Handle the creation of SSL certificates
	function ssl($event_name, $data) {
		global $app, $conf;

		$app->uses('system');

		// load the server configuration options
		$app->uses('getconf');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');
		if ($web_config['CA_path']!='' && !file_exists($web_config['CA_path'].'/openssl.cnf'))
			$app->log("CA path error, file does not exist:".$web_config['CA_path'].'/openssl.cnf', LOGLEVEL_ERROR);

		//* Only vhosts can have a ssl cert
		if($data["new"]["type"] != "vhost" && $data["new"]["type"] != "vhostsubdomain" && $data["new"]["type"] != "vhostalias") return;

		// if(!is_dir($data['new']['document_root'].'/ssl')) exec('mkdir -p '.$data['new']['document_root'].'/ssl');
		if(!is_dir($data['new']['document_root'].'/ssl')) $app->system->mkdirpath($data['new']['document_root'].'/ssl');

		$ssl_dir = $data['new']['document_root'].'/ssl';
		$domain = $data['new']['ssl_domain'];
		$key_file = $ssl_dir.'/'.$domain.'.key.org';
		$key_file2 = $ssl_dir.'/'.$domain.'.key';
		$csr_file = $ssl_dir.'/'.$domain.'.csr';
		$crt_file = $ssl_dir.'/'.$domain.'.crt';

		//* Create a SSL Certificate
		if($data['new']['ssl_action'] == 'create' && $conf['mirror_server_id'] == 0) {

			$this->ssl_certificate_changed = true;

			//* Rename files if they exist
			if(file_exists($key_file)){
				$app->system->rename($key_file, $key_file.'.bak');
				$app->system->chmod($key_file.'.bak', 0400);
			}
			if(file_exists($key_file2)){
				$app->system->rename($key_file2, $key_file2.'.bak');
				$app->system->chmod($key_file2.'.bak', 0400);
			}
			if(file_exists($csr_file)) $app->system->rename($csr_file, $csr_file.'.bak');
			if(file_exists($crt_file)) $app->system->rename($crt_file, $crt_file.'.bak');

			$rand_file = $ssl_dir.'/random_file';
			$rand_data = md5(uniqid(microtime(), 1));
			for($i=0; $i<1000; $i++) {
				$rand_data .= md5(uniqid(microtime(), 1));
				$rand_data .= md5(uniqid(microtime(), 1));
				$rand_data .= md5(uniqid(microtime(), 1));
				$rand_data .= md5(uniqid(microtime(), 1));
			}
			$app->system->file_put_contents($rand_file, $rand_data);

			$ssl_password = substr(md5(uniqid(microtime(), 1)), 0, 15);

			$ssl_cnf = "        RANDFILE               = $rand_file

        [ req ]
        default_bits           = 2048
		default_md             = sha256
        default_keyfile        = keyfile.pem
        distinguished_name     = req_distinguished_name
        attributes             = req_attributes
        prompt                 = no
        output_password        = $ssl_password

        [ req_distinguished_name ]
        C                      = ".trim($data['new']['ssl_country'])."
        " . (trim($data['new']['ssl_state']) == '' ? '' : "ST                     = ".trim($data['new']['ssl_state'])) . "
        " . (trim($data['new']['ssl_locality']) == '' ? '' : "L                      = ".trim($data['new']['ssl_locality']))."
        " . (trim($data['new']['ssl_organisation']) == '' ? '' : "O                      = ".trim($data['new']['ssl_organisation']))."
        " . (trim($data['new']['ssl_organisation_unit']) == '' ? '' : "OU                     = ".trim($data['new']['ssl_organisation_unit']))."
        CN                     = $domain
        emailAddress           = webmaster@".$data['new']['domain']."

        [ req_attributes ]
        challengePassword              = A challenge password";

			$ssl_cnf_file = $ssl_dir.'/openssl.conf';
			$app->system->file_put_contents($ssl_cnf_file, $ssl_cnf);

			$rand_file = escapeshellcmd($rand_file);
			$key_file = escapeshellcmd($key_file);
			$openssl_cmd_key_file = $key_file;
			if(substr($domain, 0, 2) == '*.' && strpos($key_file, '/ssl/\*.') !== false) $key_file = str_replace('/ssl/\*.', '/ssl/*.', $key_file); // wildcard certificate
			$key_file2 = escapeshellcmd($key_file2);
			$openssl_cmd_key_file2 = $key_file2;
			if(substr($domain, 0, 2) == '*.' && strpos($key_file2, '/ssl/\*.') !== false) $key_file2 = str_replace('/ssl/\*.', '/ssl/*.', $key_file2); // wildcard certificate
			$ssl_days = 3650;
			$csr_file = escapeshellcmd($csr_file);
			$openssl_cmd_csr_file = $csr_file;
			if(substr($domain, 0, 2) == '*.' && strpos($csr_file, '/ssl/\*.') !== false) $csr_file = str_replace('/ssl/\*.', '/ssl/*.', $csr_file); // wildcard certificate
			$config_file = escapeshellcmd($ssl_cnf_file);
			$crt_file = escapeshellcmd($crt_file);
			$openssl_cmd_crt_file = $crt_file;
			if(substr($domain, 0, 2) == '*.' && strpos($crt_file, '/ssl/\*.') !== false) $crt_file = str_replace('/ssl/\*.', '/ssl/*.', $crt_file); // wildcard certificate

			if(is_file($ssl_cnf_file) && !is_link($ssl_cnf_file)) {

				exec("openssl genrsa -des3 -rand $rand_file -passout pass:$ssl_password -out $openssl_cmd_key_file 2048");
				exec("openssl req -new -sha256 -passin pass:$ssl_password -passout pass:$ssl_password -key $openssl_cmd_key_file -out $openssl_cmd_csr_file -days $ssl_days -config $config_file");
				exec("openssl rsa -passin pass:$ssl_password -in $openssl_cmd_key_file -out $openssl_cmd_key_file2");

				if(file_exists($web_config['CA_path'].'/openssl.cnf'))
				{
					exec("openssl ca -batch -out $openssl_cmd_crt_file -config ".$web_config['CA_path']."/openssl.cnf -passin pass:".$web_config['CA_pass']." -in $openssl_cmd_csr_file");
					$app->log("Creating CA-signed SSL Cert for: $domain", LOGLEVEL_DEBUG);
					if (filesize($crt_file)==0 || !file_exists($crt_file)) $app->log("CA-Certificate signing failed.  openssl ca -out $openssl_cmd_crt_file -config ".$web_config['CA_path']."/openssl.cnf -passin pass:".$web_config['CA_pass']." -in $openssl_cmd_csr_file", LOGLEVEL_ERROR);
				};
				if (@filesize($crt_file)==0 || !file_exists($crt_file)){
					exec("openssl req -x509 -passin pass:$ssl_password -passout pass:$ssl_password -key $openssl_cmd_key_file -in $openssl_cmd_csr_file -out $openssl_cmd_crt_file -days $ssl_days -config $config_file ");
					$app->log("Creating self-signed SSL Cert for: $domain", LOGLEVEL_DEBUG);
				};

			}

			$app->system->chmod($key_file, 0400);
			$app->system->chmod($key_file2, 0400);
			@$app->system->unlink($config_file);
			@$app->system->unlink($rand_file);
			$ssl_request = $app->system->file_get_contents($csr_file);
			$ssl_cert = $app->system->file_get_contents($crt_file);
			$ssl_key2 = $app->system->file_get_contents($key_file2);
			/* Update the DB of the (local) Server */
			$app->db->query("UPDATE web_domain SET ssl_request = ?, ssl_cert = ?, ssl_key = ? WHERE domain = ?", $ssl_request, $ssl_cert, $ssl_key2, $data['new']['domain']);
			$app->db->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
			/* Update also the master-DB of the Server-Farm */
			$app->dbmaster->query("UPDATE web_domain SET ssl_request = ?, ssl_cert = ?, ssl_key = ? WHERE domain = ?", $ssl_request, $ssl_cert, $ssl_key2, $data['new']['domain']);
			$app->dbmaster->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
		}

		//* Check that the SSL key is not password protected
		if($data["new"]["ssl_action"] == 'save') {
			if(stristr($data["new"]["ssl_key"],'Proc-Type: 4,ENCRYPTED')) {
				$data["new"]["ssl_action"] = '';
			
				$app->log('SSL Certificate not saved. The SSL key is encrypted.', LOGLEVEL_WARN);
				$app->dbmaster->datalogError('SSL Certificate not saved. The SSL key is encrypted.');
			
				/* Update the DB of the (local) Server */
				$app->db->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);

				/* Update also the master-DB of the Server-Farm */
				$app->dbmaster->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
			}
		}
		
		//* Save a SSL certificate to disk
		if($data["new"]["ssl_action"] == 'save') {
			$this->ssl_certificate_changed = true;
			$ssl_dir = $data["new"]["document_root"]."/ssl";
			$domain = ($data["new"]["ssl_domain"] != '')?$data["new"]["ssl_domain"]:$data["new"]["domain"];
			$key_file = $ssl_dir.'/'.$domain.'.key.org';
			$key_file2 = $ssl_dir.'/'.$domain.'.key';
			$csr_file = $ssl_dir.'/'.$domain.".csr";
			$crt_file = $ssl_dir.'/'.$domain.".crt";
			//$bundle_file = $ssl_dir.'/'.$domain.".bundle";

			//* Backup files
			if(file_exists($key_file)){
				$app->system->copy($key_file, $key_file.'~');
				$app->system->chmod($key_file.'~', 0400);
			}
			if(file_exists($key_file2)){
				$app->system->copy($key_file2, $key_file2.'~');
				$app->system->chmod($key_file2.'~', 0400);
			}
			if(file_exists($csr_file)) $app->system->copy($csr_file, $csr_file.'~');
			if(file_exists($crt_file)) $app->system->copy($crt_file, $crt_file.'~');
			//if(file_exists($bundle_file)) $app->system->copy($bundle_file,$bundle_file.'~');

			//* Write new ssl files
			if(trim($data["new"]["ssl_request"]) != '') $app->system->file_put_contents($csr_file, $data["new"]["ssl_request"]);
			if(trim($data["new"]["ssl_cert"]) != '') $app->system->file_put_contents($crt_file, $data["new"]["ssl_cert"]);
			//if(trim($data["new"]["ssl_bundle"]) != '') $app->system->file_put_contents($bundle_file,$data["new"]["ssl_bundle"]);
			if(trim($data["new"]["ssl_key"]) != '') $app->system->file_put_contents($key_file2, $data["new"]["ssl_key"]);
			$app->system->chmod($key_file2, 0400);

			// for nginx, bundle files have to be appended to the certificate file
			if(trim($data["new"]["ssl_bundle"]) != ''){
				if(file_exists($crt_file)){
					$crt_file_contents = trim($app->system->file_get_contents($crt_file));
				} else {
					$crt_file_contents = '';
				}
				if($crt_file_contents != '') $crt_file_contents .= "\n";
				$crt_file_contents .= $data["new"]["ssl_bundle"];
				$app->system->file_put_contents($crt_file, $app->file->unix_nl($crt_file_contents));
				unset($crt_file_contents);
			}
			/* Update the DB of the (local) Server */
			$app->db->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);

			/* Update also the master-DB of the Server-Farm */
			$app->dbmaster->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
			$app->log('Saving SSL Cert for: '.$domain, LOGLEVEL_DEBUG);
		}

		//* Delete a SSL certificate
		if($data['new']['ssl_action'] == 'del') {
			$ssl_dir = $data['new']['document_root'].'/ssl';
			$domain = ($data["new"]["ssl_domain"] != '')?$data["new"]["ssl_domain"]:$data["new"]["domain"];
			$csr_file = $ssl_dir.'/'.$domain.'.csr';
			$crt_file = $ssl_dir.'/'.$domain.'.crt';
			//$bundle_file = $ssl_dir.'/'.$domain.'.bundle';
			if(file_exists($web_config['CA_path'].'/openssl.cnf') && !is_link($web_config['CA_path'].'/openssl.cnf'))
			{
				exec("openssl ca -batch -config ".$web_config['CA_path']."/openssl.cnf -passin pass:".$web_config['CA_pass']." -revoke ".escapeshellcmd($crt_file));
				$app->log("Revoking CA-signed SSL Cert for: $domain", LOGLEVEL_DEBUG);
			};
			$app->system->unlink($csr_file);
			$app->system->unlink($crt_file);
			//$app->system->unlink($bundle_file);
			/* Update the DB of the (local) Server */
			$app->db->query("UPDATE web_domain SET ssl_request = '', ssl_cert = '' WHERE domain = ?", $data['new']['domain']);
			$app->db->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
			/* Update also the master-DB of the Server-Farm */
			$app->dbmaster->query("UPDATE web_domain SET ssl_request = '', ssl_cert = '' WHERE domain = ?", $data['new']['domain']);
			$app->dbmaster->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
			$app->log('Deleting SSL Cert for: '.$domain, LOGLEVEL_DEBUG);
		}

	}


	function insert($event_name, $data) {
		global $app, $conf;

		$this->action = 'insert';
		// just run the update function
		$this->update($event_name, $data);


	}


	function update($event_name, $data) {
		global $app, $conf;

		//* Check if the apache plugin is enabled
		if(@is_link('/usr/local/ispconfig/server/plugins-enabled/apache2_plugin.inc.php')) {
			$app->log('The nginx plugin cannot be used together with the apache2 plugin.', LOGLEVEL_WARN);
			return 0;
		}

		if($this->action != 'insert') $this->action = 'update';

		if($data['new']['type'] != 'vhost' && $data['new']['type'] != 'vhostsubdomain' && $data['new']['type'] != 'vhostalias' && $data['new']['parent_domain_id'] > 0) {

			$old_parent_domain_id = intval($data['old']['parent_domain_id']);
			$new_parent_domain_id = intval($data['new']['parent_domain_id']);

			// If the parent_domain_id has been changed, we will have to update the old site as well.
			if($this->action == 'update' && $data['new']['parent_domain_id'] != $data['old']['parent_domain_id']) {
				$tmp = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ? AND active = 'y'", $old_parent_domain_id);
				$data['new'] = $tmp;
				$data['old'] = $tmp;
				$this->action = 'update';
				$this->update($event_name, $data);
			}

			// This is not a vhost, so we need to update the parent record instead.
			$tmp = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ? AND active = 'y'", $new_parent_domain_id);
			$data['new'] = $tmp;
			$data['old'] = $tmp;
			$this->action = 'update';
			$this->update_letsencrypt = true;
		}

		// load the server configuration options
		$app->uses('getconf');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');

		//* Check if this is a chrooted setup
		if($web_config['website_basedir'] != '' && @is_file($web_config['website_basedir'].'/etc/passwd')) {
			$nginx_chrooted = true;
			$app->log('Info: nginx is chrooted.', LOGLEVEL_DEBUG);
		} else {
			$nginx_chrooted = false;
		}

		if($data['new']['document_root'] == '') {
			if($data['new']['type'] == 'vhost' || $data['new']['type'] == 'vhostsubdomain' || $data['new']['type'] == 'vhostalias') $app->log('document_root not set', LOGLEVEL_WARN);
			return 0;
		}

		if($app->system->is_allowed_user($data['new']['system_user'], $app->system->is_user($data['new']['system_user']), true) == false
			|| $app->system->is_allowed_group($data['new']['system_group'], $app->system->is_group($data['new']['system_group']), true) == false) {
			$app->log('Websites cannot be owned by the root user or group. User: '.$data['new']['system_user'].' Group: '.$data['new']['system_group'], LOGLEVEL_WARN);
			return 0;
		}

		if(trim($data['new']['domain']) == '') {
			$app->log('domain is empty', LOGLEVEL_WARN);
			return 0;
		}

		$web_folder = 'web';
		$log_folder = 'log';
		$old_web_folder = 'web';
		$old_log_folder = 'log';
		if($data['new']['type'] == 'vhost'){
			if($data['new']['web_folder'] != ''){
				if(substr($data['new']['web_folder'],0,1) == '/') $data['new']['web_folder'] = substr($data['new']['web_folder'],1);
				if(substr($data['new']['web_folder'],-1) == '/') $data['new']['web_folder'] = substr($data['new']['web_folder'],0,-1);
			}
			$web_folder .= '/'.$data['new']['web_folder'];
			
			if($data['old']['web_folder'] != ''){
				if(substr($data['old']['web_folder'],0,1) == '/') $data['old']['web_folder'] = substr($data['old']['web_folder'],1);
				if(substr($data['old']['web_folder'],-1) == '/') $data['old']['web_folder'] = substr($data['old']['web_folder'],0,-1);
			}
			$old_web_folder .= '/'.$data['old']['web_folder'];
		}
		if($data['new']['type'] == 'vhostsubdomain' || $data['new']['type'] == 'vhostalias') {
			// new one
			$tmp = $app->db->queryOneRecord('SELECT `domain` FROM web_domain WHERE domain_id = ?', $data['new']['parent_domain_id']);
			$subdomain_host = preg_replace('/^(.*)\.' . preg_quote($tmp['domain'], '/') . '$/', '$1', $data['new']['domain']);
			if($subdomain_host == '') $subdomain_host = 'web'.$data['new']['domain_id'];
			$web_folder = $data['new']['web_folder'];
			$log_folder .= '/' . $subdomain_host;
			unset($tmp);
			
			if(isset($data['old']['parent_domain_id'])) {
				// old one
				$tmp = $app->db->queryOneRecord('SELECT `domain` FROM web_domain WHERE domain_id = ?', $data['old']['parent_domain_id']);
				$subdomain_host = preg_replace('/^(.*)\.' . preg_quote($tmp['domain'], '/') . '$/', '$1', $data['old']['domain']);
				if($subdomain_host == '') $subdomain_host = 'web'.$data['old']['domain_id'];
				$old_web_folder = $data['old']['web_folder'];
				$old_log_folder .= '/' . $subdomain_host;
				unset($tmp);
			}
		}

		// Create group and user, if not exist
		$app->uses('system');

		if($web_config['connect_userid_to_webid'] == 'y') {
			//* Calculate the uid and gid
			$connect_userid_to_webid_start = ($web_config['connect_userid_to_webid_start'] < 1000)?1000:intval($web_config['connect_userid_to_webid_start']);
			$fixed_uid_gid = intval($connect_userid_to_webid_start + $data['new']['domain_id']);
			$fixed_uid_param = '--uid '.$fixed_uid_gid;
			$fixed_gid_param = '--gid '.$fixed_uid_gid;

			//* Check if a ispconfigend user and group exists and create them
			if(!$app->system->is_group('ispconfigend')) {
				exec('groupadd --gid '.($connect_userid_to_webid_start + 10000).' ispconfigend');
			}
			if(!$app->system->is_user('ispconfigend')) {
				exec('useradd -g ispconfigend -d /usr/local/ispconfig --uid '.($connect_userid_to_webid_start + 10000).' ispconfigend');
			}
		} else {
			$fixed_uid_param = '';
			$fixed_gid_param = '';
		}

		$groupname = escapeshellcmd($data['new']['system_group']);
		if($data['new']['system_group'] != '' && !$app->system->is_group($data['new']['system_group'])) {
			exec('groupadd '.$fixed_gid_param.' '.$groupname);
			if($nginx_chrooted) $this->_exec('chroot '.escapeshellcmd($web_config['website_basedir']).' groupadd '.$groupname);
			$app->log('Adding the group: '.$groupname, LOGLEVEL_DEBUG);
		}

		$username = escapeshellcmd($data['new']['system_user']);
		if($data['new']['system_user'] != '' && !$app->system->is_user($data['new']['system_user'])) {
			if($web_config['add_web_users_to_sshusers_group'] == 'y') {
				exec('useradd -d '.escapeshellcmd($data['new']['document_root'])." -g $groupname $fixed_uid_param -G sshusers $username -s /bin/false");
				if($nginx_chrooted) $this->_exec('chroot '.escapeshellcmd($web_config['website_basedir']).' useradd -d '.escapeshellcmd($data['new']['document_root'])." -g $groupname $fixed_uid_param -G sshusers $username -s /bin/false");
			} else {
				exec('useradd -d '.escapeshellcmd($data['new']['document_root'])." -g $groupname $fixed_uid_param $username -s /bin/false");
				if($nginx_chrooted) $this->_exec('chroot '.escapeshellcmd($web_config['website_basedir']).' useradd -d '.escapeshellcmd($data['new']['document_root'])." -g $groupname $fixed_uid_param $username -s /bin/false");
			}
			$app->log('Adding the user: '.$username, LOGLEVEL_DEBUG);
		}

		//* If the client of the site has been changed, we have a change of the document root
		if($this->action == 'update' && $data['new']['document_root'] != $data['old']['document_root']) {

			//* Get the old client ID
			$old_client = $app->dbmaster->queryOneRecord('SELECT client_id FROM sys_group WHERE sys_group.groupid = ?', $data['old']['sys_groupid']);
			$old_client_id = intval($old_client['client_id']);
			unset($old_client);

			//* Remove the old symlinks
			$tmp_symlinks_array = explode(':', $web_config['website_symlinks']);
			if(is_array($tmp_symlinks_array)) {
				foreach($tmp_symlinks_array as $tmp_symlink) {
					$tmp_symlink = str_replace('[client_id]', $old_client_id, $tmp_symlink);
					$tmp_symlink = str_replace('[website_domain]', $data['old']['domain'], $tmp_symlink);
					// Remove trailing slash
					if(substr($tmp_symlink, -1, 1) == '/') $tmp_symlink = substr($tmp_symlink, 0, -1);
					// create the symlinks, if not exist
					if(is_link($tmp_symlink)) {
						exec('rm -f '.escapeshellcmd($tmp_symlink));
						$app->log('Removed symlink: rm -f '.$tmp_symlink, LOGLEVEL_DEBUG);
					}
				}
			}

			if($data["new"]["type"] != "vhostsubdomain" && $data["new"]["type"] != "vhostalias") {
				//* Move the site data
				$tmp_docroot = explode('/', $data['new']['document_root']);
				unset($tmp_docroot[count($tmp_docroot)-1]);
				$new_dir = implode('/', $tmp_docroot);

				$tmp_docroot = explode('/', $data['old']['document_root']);
				unset($tmp_docroot[count($tmp_docroot)-1]);
				$old_dir = implode('/', $tmp_docroot);

				//* Check if there is already some data in the new docroot and rename it as we need a clean path to move the existing site to the new path
				if(@is_dir($data['new']['document_root'])) {
					$app->system->web_folder_protection($data['new']['document_root'], false);
					$app->system->rename($data['new']['document_root'], $data['new']['document_root'].'_bak_'.date('Y_m_d_H_i_s'));
					$app->log('Renaming existing directory in new docroot location. mv '.$data['new']['document_root'].' '.$data['new']['document_root'].'_bak_'.date('Y_m_d_H_i_s'), LOGLEVEL_DEBUG);
				}
				
				//* Unmount the old log directory bfore we move the log dir
				exec('umount '.escapeshellcmd($old_dir.'/log'));

				//* Create new base directory, if it does not exist yet
				if(!is_dir($new_dir)) $app->system->mkdirpath($new_dir);
				$app->system->web_folder_protection($data['old']['document_root'], false);
				exec('mv '.escapeshellarg($data['old']['document_root']).' '.escapeshellarg($new_dir));
				//$app->system->rename($data['old']['document_root'],$new_dir);
				$app->log('Moving site to new document root: mv '.$data['old']['document_root'].' '.$new_dir, LOGLEVEL_DEBUG);

				// Handle the change in php_open_basedir
				$data['new']['php_open_basedir'] = str_replace($data['old']['document_root'], $data['new']['document_root'], $data['old']['php_open_basedir']);

				//* Change the owner of the website files to the new website owner
				exec('chown --recursive --from='.escapeshellcmd($data['old']['system_user']).':'.escapeshellcmd($data['old']['system_group']).' '.escapeshellcmd($data['new']['system_user']).':'.escapeshellcmd($data['new']['system_group']).' '.$new_dir);

				//* Change the home directory and group of the website user
				$command = 'killall -u '.escapeshellcmd($data['new']['system_user']).' ; usermod';
				$command .= ' --home '.escapeshellcmd($data['new']['document_root']);
				$command .= ' --gid '.escapeshellcmd($data['new']['system_group']);
				$command .= ' '.escapeshellcmd($data['new']['system_user']).' 2>/dev/null';
				exec($command);
			}

			if($nginx_chrooted) $this->_exec('chroot '.escapeshellcmd($web_config['website_basedir']).' '.$command);

			//* Change the log mount
			/*
			$fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$old_log_folder.'    none    bind';
			$app->system->removeLine('/etc/fstab', $fstab_line);
			$fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$old_log_folder.'    none    bind,nobootwait';
			$app->system->removeLine('/etc/fstab', $fstab_line);
			$fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$old_log_folder.'    none    bind,nobootwait';
			$app->system->removeLine('/etc/fstab', $fstab_line);
			*/
			
			$fstab_line_old = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$old_log_folder.'    none    bind';
			
			if($web_config['network_filesystem'] == 'y') {
				$fstab_line = '/var/log/ispconfig/httpd/'.$data['new']['domain'].' '.$data['new']['document_root'].'/'.$log_folder.'    none    bind,nobootwait,_netdev    0 0';
				$app->system->replaceLine('/etc/fstab', $fstab_line_old, $fstab_line, 0, 1);
			} else {
				$fstab_line = '/var/log/ispconfig/httpd/'.$data['new']['domain'].' '.$data['new']['document_root'].'/'.$log_folder.'    none    bind,nobootwait    0 0';
				$app->system->replaceLine('/etc/fstab', $fstab_line_old, $fstab_line, 0, 1);
			}
			
			exec('mount --bind '.escapeshellarg('/var/log/ispconfig/httpd/'.$data['new']['domain']).' '.escapeshellarg($data['new']['document_root'].'/'.$log_folder));

		}

		//print_r($data);

		// Check if the directories are there and create them if necessary.
		$app->system->web_folder_protection($data['new']['document_root'], false);

		if(!is_dir($data['new']['document_root'].'/' . $web_folder)) $app->system->mkdirpath($data['new']['document_root'].'/' . $web_folder);
		if(!is_dir($data['new']['document_root'].'/' . $web_folder . '/error') and $data['new']['errordocs']) $app->system->mkdirpath($data['new']['document_root'].'/' . $web_folder . '/error');
		if(!is_dir($data['new']['document_root'].'/' . $web_folder . '/stats')) $app->system->mkdirpath($data['new']['document_root'].'/' . $web_folder . '/stats');
		//if(!is_dir($data['new']['document_root'].'/'.$log_folder)) exec('mkdir -p '.$data['new']['document_root'].'/'.$log_folder);
		if(!is_dir($data['new']['document_root'].'/ssl')) $app->system->mkdirpath($data['new']['document_root'].'/ssl');
		if(!is_dir($data['new']['document_root'].'/cgi-bin')) $app->system->mkdirpath($data['new']['document_root'].'/cgi-bin');
		if(!is_dir($data['new']['document_root'].'/tmp')) $app->system->mkdirpath($data['new']['document_root'].'/tmp');
		//if(!is_dir($data['new']['document_root'].'/webdav')) $app->system->mkdirpath($data['new']['document_root'].'/webdav');

		//* Create the new private directory
		if(!is_dir($data['new']['document_root'].'/private')) {
			$app->system->mkdirpath($data['new']['document_root'].'/private');
			$app->system->chmod($data['new']['document_root'].'/private', 0710);
			$app->system->chown($data['new']['document_root'].'/private', $username);
			$app->system->chgrp($data['new']['document_root'].'/private', $groupname);
		}


		// Remove the symlink for the site, if site is renamed
		if($this->action == 'update' && $data['old']['domain'] != '' && $data['new']['domain'] != $data['old']['domain']) {
			if(is_dir('/var/log/ispconfig/httpd/'.$data['old']['domain'])) exec('rm -rf /var/log/ispconfig/httpd/'.$data['old']['domain']);
			if(is_link($data['old']['document_root'].'/'.$old_log_folder)) $app->system->unlink($data['old']['document_root'].'/'.$old_log_folder);

			//* remove old log mount
			$fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$old_log_folder.'    none    bind';
			$app->system->removeLine('/etc/fstab', $fstab_line);

			//* Unmount log directory
			//exec('fuser -km '.escapeshellarg($data['old']['document_root'].'/'.$old_log_folder));
			exec('umount '.escapeshellarg($data['old']['document_root'].'/'.$old_log_folder));
		}

		//* Create the log dir if nescessary and mount it
		if(!is_dir($data['new']['document_root'].'/'.$log_folder) || !is_dir('/var/log/ispconfig/httpd/'.$data['new']['domain']) || is_link($data['new']['document_root'].'/'.$log_folder)) {
			if(is_link($data['new']['document_root'].'/'.$log_folder)) unlink($data['new']['document_root'].'/'.$log_folder);
			if(!is_dir('/var/log/ispconfig/httpd/'.$data['new']['domain'])) exec('mkdir -p /var/log/ispconfig/httpd/'.$data['new']['domain']);
			$app->system->mkdirpath($data['new']['document_root'].'/'.$log_folder);
			$app->system->chown($data['new']['document_root'].'/'.$log_folder, 'root');
			$app->system->chgrp($data['new']['document_root'].'/'.$log_folder, 'root');
			$app->system->chmod($data['new']['document_root'].'/'.$log_folder, 0755);
			exec('mount --bind '.escapeshellarg('/var/log/ispconfig/httpd/'.$data['new']['domain']).' '.escapeshellarg($data['new']['document_root'].'/'.$log_folder));
			//* add mountpoint to fstab
			$fstab_line = '/var/log/ispconfig/httpd/'.$data['new']['domain'].' '.$data['new']['document_root'].'/'.$log_folder.'    none    bind,nobootwait';
			$fstab_line .= @($web_config['network_filesystem'] == 'y')?',_netdev    0 0':'    0 0';
			$app->system->replaceLine('/etc/fstab', $fstab_line, $fstab_line, 1, 1);
		}

		$app->system->web_folder_protection($data['new']['document_root'], true);

		// Get the client ID
		$client = $app->dbmaster->queryOneRecord('SELECT client_id FROM sys_group WHERE sys_group.groupid = ?', $data['new']['sys_groupid']);
		$client_id = intval($client['client_id']);
		unset($client);

		// Remove old symlinks, if site is renamed
		if($this->action == 'update' && $data['old']['domain'] != '' && $data['new']['domain'] != $data['old']['domain']) {
			$tmp_symlinks_array = explode(':', $web_config['website_symlinks']);
			if(is_array($tmp_symlinks_array)) {
				foreach($tmp_symlinks_array as $tmp_symlink) {
					$tmp_symlink = str_replace('[client_id]', $client_id, $tmp_symlink);
					$tmp_symlink = str_replace('[website_domain]', $data['old']['domain'], $tmp_symlink);
					// Remove trailing slash
					if(substr($tmp_symlink, -1, 1) == '/') $tmp_symlink = substr($tmp_symlink, 0, -1);
					// remove the symlinks, if not exist
					if(is_link($tmp_symlink)) {
						exec('rm -f '.escapeshellcmd($tmp_symlink));
						$app->log('Removed symlink: rm -f '.$tmp_symlink, LOGLEVEL_DEBUG);
					}
				}
			}
		}

		// Create the symlinks for the sites
		$tmp_symlinks_array = explode(':', $web_config['website_symlinks']);
		if(is_array($tmp_symlinks_array)) {
			foreach($tmp_symlinks_array as $tmp_symlink) {
				$tmp_symlink = str_replace('[client_id]', $client_id, $tmp_symlink);
				$tmp_symlink = str_replace('[website_domain]', $data['new']['domain'], $tmp_symlink);
				// Remove trailing slash
				if(substr($tmp_symlink, -1, 1) == '/') $tmp_symlink = substr($tmp_symlink, 0, -1);
				//* Remove symlink if target folder has been changed.
				if($data['old']['document_root'] != '' && $data['old']['document_root'] != $data['new']['document_root'] && is_link($tmp_symlink)) {
					$app->system->unlink($tmp_symlink);
				}
				// create the symlinks, if not exist
				if(!is_link($tmp_symlink)) {
					//     exec("ln -s ".escapeshellcmd($data["new"]["document_root"])."/ ".escapeshellcmd($tmp_symlink));
					if ($web_config["website_symlinks_rel"] == 'y') {
						$this->create_relative_link(escapeshellcmd($data["new"]["document_root"]), escapeshellcmd($tmp_symlink));
					} else {
						exec("ln -s ".escapeshellcmd($data["new"]["document_root"])."/ ".escapeshellcmd($tmp_symlink));
					}

					$app->log('Creating symlink: ln -s '.$data['new']['document_root'].'/ '.$tmp_symlink, LOGLEVEL_DEBUG);
				}
			}
		}



		// Install the Standard or Custom Error, Index and other related files
		// /usr/local/ispconfig/server/conf is for the standard files
		// /usr/local/ispconfig/server/conf-custom is for the custom files
		// setting a local var here

		// normally $conf['templates'] = "/usr/local/ispconfig/server/conf";
		if($this->action == 'insert' && ($data['new']['type'] == 'vhost' || $data['new']['type'] == 'vhostsubdomain' || $data['new']['type'] == 'vhostalias')) {

			// Copy the error pages
			if($data['new']['errordocs']) {
				$error_page_path = escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/error/';
				if (file_exists($conf['rootpath'] . '/conf-custom/error/'.substr(escapeshellcmd($conf['language']), 0, 2))) {
					exec('cp ' . $conf['rootpath'] . '/conf-custom/error/'.substr(escapeshellcmd($conf['language']), 0, 2).'/* '.$error_page_path);
				}
				else {
					if (file_exists($conf['rootpath'] . '/conf-custom/error/400.html')) {
						exec('cp '. $conf['rootpath'] . '/conf-custom/error/*.html '.$error_page_path);
					}
					else {
						exec('cp ' . $conf['rootpath'] . '/conf/error/'.substr(escapeshellcmd($conf['language']), 0, 2).'/* '.$error_page_path);
					}
				}
				exec('chmod -R a+r '.$error_page_path);
			}
			
			//* Copy the web skeleton files only when there is no index.ph or index.html file yet
			if(!file_exists($data['new']['document_root'].'/'.$web_folder.'/index.html') && !file_exists($data['new']['document_root'].'/'.$web_folder.'/index.php')) {
				if (file_exists($conf['rootpath'] . '/conf-custom/index/standard_index.html_'.substr(escapeshellcmd($conf['language']), 0, 2))) {
					if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/index.html')) exec('cp ' . $conf['rootpath'] . '/conf-custom/index/standard_index.html_'.substr(escapeshellcmd($conf['language']), 0, 2).' '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/index.html');

					if(is_file($conf['rootpath'] . '/conf-custom/index/favicon.ico')) {
						if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/favicon.ico')) exec('cp ' . $conf['rootpath'] . '/conf-custom/index/favicon.ico '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');
					}
					if(is_file($conf['rootpath'] . '/conf-custom/index/robots.txt')) {
						if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/robots.txt')) exec('cp ' . $conf['rootpath'] . '/conf-custom/index/robots.txt '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');
					}
					//if(is_file($conf['rootpath'] . '/conf-custom/index/.htaccess')) {
					//	exec('cp ' . $conf['rootpath'] . '/conf-custom/index/.htaccess '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');
					//}
				} else {
					if (file_exists($conf['rootpath'] . '/conf-custom/index/standard_index.html')) {
						if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/index.html')) exec('cp ' . $conf['rootpath'] . '/conf-custom/index/standard_index.html '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/index.html');
					} else {
						if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/index.html')) exec('cp ' . $conf['rootpath'] . '/conf/index/standard_index.html_'.substr(escapeshellcmd($conf['language']), 0, 2).' '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/index.html');
						if(is_file($conf['rootpath'] . '/conf/index/favicon.ico')){
							if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/favicon.ico')) exec('cp ' . $conf['rootpath'] . '/conf/index/favicon.ico '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');
						}
						if(is_file($conf['rootpath'] . '/conf/index/robots.txt')){
							if(!file_exists(escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/robots.txt')) exec('cp ' . $conf['rootpath'] . '/conf/index/robots.txt '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');
						}
						//if(is_file($conf['rootpath'] . '/conf/index/.htaccess')) exec('cp ' . $conf['rootpath'] . '/conf/index/.htaccess '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');
					}
				}
			}
			exec('chmod -R a+r '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/');

			//** Copy the error documents on update when the error document checkbox has been activated and was deactivated before
		} elseif ($this->action == 'update' && ($data['new']['type'] == 'vhost' || $data['new']['type'] == 'vhostsubdomain' || $data['new']['type'] == 'vhostalias') && $data['old']['errordocs'] == 0 && $data['new']['errordocs'] == 1) {

			$error_page_path = escapeshellcmd($data['new']['document_root']).'/' . $web_folder . '/error/';
			if (file_exists($conf['rootpath'] . '/conf-custom/error/'.substr(escapeshellcmd($conf['language']), 0, 2))) {
				exec('cp ' . $conf['rootpath'] . '/conf-custom/error/'.substr(escapeshellcmd($conf['language']), 0, 2).'/* '.$error_page_path);
			}
			else {
				if (file_exists($conf['rootpath'] . '/conf-custom/error/400.html')) {
					exec('cp ' . $conf['rootpath'] . '/conf-custom/error/*.html '.$error_page_path);
				}
				else {
					exec('cp ' . $conf['rootpath'] . '/conf/error/'.substr(escapeshellcmd($conf['language']), 0, 2).'/* '.$error_page_path);
				}
			}
			exec('chmod -R a+r '.$error_page_path);
			exec('chown -R '.$data['new']['system_user'].':'.$data['new']['system_group'].' '.$error_page_path);
		}  // end copy error docs

		// Set the quota for the user, but only for vhosts, not vhostsubdomains or vhostalias
		if($username != '' && $app->system->is_user($username) && $data['new']['type'] == 'vhost') {
			if($data['new']['hd_quota'] > 0) {
				$blocks_soft = $data['new']['hd_quota'] * 1024;
				$blocks_hard = $blocks_soft + 1024;
				$mb_hard = $mb_soft + 1;
			} else {
				$mb_soft = $mb_hard = $blocks_soft = $blocks_hard = 0;
			}

			// get the primitive folder for document_root and the filesystem, will need it later.
			$df_output=explode(" ", exec("df -T " . escapeshellarg($data['new']['document_root']) . "|awk 'END{print \$2,\$NF}'"));
			$file_system = $df_output[0];
			$primitive_root = $df_output[1];

			if($file_system == 'xfs') {
				exec("xfs_quota -x -c " . escapeshellarg("limit -u bsoft=$mb_soft" . 'm'. " bhard=$mb_hard" . 'm'. " " . $username) . " " . escapeshellarg($primitive_root));

				// xfs only supports timers globally, not per user.
				exec("xfs_quota -x -c 'timer -bir -i 604800' " . escapeshellarg($primitive_root));

				unset($project_uid, $username_position, $xfs_projects);
				unset($primitive_root, $df_output, $mb_hard, $mb_soft);
			} else {
				if($app->system->is_installed('setquota')) {
					exec('setquota -u '. $username . ' ' . $blocks_soft . ' ' . $blocks_hard . ' 0 0 -a &> /dev/null');
					exec('setquota -T -u '.$username.' 604800 604800 -a &> /dev/null');
				}
			}
		}

		if($this->action == 'insert' || $data["new"]["system_user"] != $data["old"]["system_user"]) {
			// Chown and chmod the directories below the document root
			$this->_exec('chown -R '.$username.':'.$groupname.' '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder);
			// The document root itself has to be owned by root in normal level and by the web owner in security level 20
			if($web_config['security_level'] == 20) {
				$this->_exec('chown '.$username.':'.$groupname.' '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder);
			} else {
				$this->_exec('chown root:root '.escapeshellcmd($data['new']['document_root']).'/' . $web_folder);
			}
		}

		//* add the nginx user to the client group if this is a vhost and security level is set to high, no matter if this is an insert or update and regardless of set_folder_permissions_on_update
		if($data['new']['type'] == 'vhost' && $web_config['security_level'] == 20) $app->system->add_user_to_group($groupname, escapeshellcmd($web_config['nginx_user']));

		//* If the security level is set to high
		if(($this->action == 'insert' && $data['new']['type'] == 'vhost') or ($web_config['set_folder_permissions_on_update'] == 'y' && $data['new']['type'] == 'vhost') or ($web_folder != $old_web_folder && $data['new']['type'] == 'vhost')) {

			$app->system->web_folder_protection($data['new']['document_root'], false);

			//* Check if we have the new private folder and create it if nescessary
			if(!is_dir($data['new']['document_root'].'/private')) $app->system->mkdir($data['new']['document_root'].'/private');

			if($web_config['security_level'] == 20) {

				$app->system->chmod($data['new']['document_root'], 0755);
				$app->system->chmod($data['new']['document_root'].'/web', 0751);
				//$app->system->chmod($data['new']['document_root'].'/webdav',0710);
				$app->system->chmod($data['new']['document_root'].'/private', 0710);
				$app->system->chmod($data['new']['document_root'].'/ssl', 0755);
				if($web_folder != 'web') $app->system->chmod($data['new']['document_root'].'/'.$web_folder, 0751);

				// make tmp directory writable for nginx and the website users
				$app->system->chmod($data['new']['document_root'].'/tmp', 0770);

				// Set Log directory to 755 to make the logs accessible by the FTP user
				if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
					$app->system->chmod($data['new']['document_root'].'/'.$log_folder, 0755);
				}

				if($web_config['add_web_users_to_sshusers_group'] == 'y') {
					$command = 'usermod';
					$command .= ' --groups sshusers';
					$command .= ' '.escapeshellcmd($data['new']['system_user']).' 2>/dev/null';
					$this->_exec($command);
				}

				//* if we have a chrooted nginx environment
				if($nginx_chrooted) {
					$this->_exec('chroot '.escapeshellcmd($web_config['website_basedir']).' '.$command);

					//* add the nginx user to the client group in the chroot environment
					$tmp_groupfile = $app->system->server_conf['group_datei'];
					$app->system->server_conf['group_datei'] = $web_config['website_basedir'].'/etc/group';
					$app->system->add_user_to_group($groupname, escapeshellcmd($web_config['nginx_user']));
					$app->system->server_conf['group_datei'] = $tmp_groupfile;
					unset($tmp_groupfile);
				}

				//* Chown all default directories
				$app->system->chown($data['new']['document_root'], 'root');
				$app->system->chgrp($data['new']['document_root'], 'root');
				$app->system->chown($data['new']['document_root'].'/cgi-bin', $username);
				$app->system->chgrp($data['new']['document_root'].'/cgi-bin', $groupname);
				if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
					$app->system->chown($data['new']['document_root'].'/'.$log_folder, 'root', false);
					$app->system->chgrp($data['new']['document_root'].'/'.$log_folder, $groupname, false);
				}
				$app->system->chown($data['new']['document_root'].'/ssl', 'root');
				$app->system->chgrp($data['new']['document_root'].'/ssl', 'root');
				$app->system->chown($data['new']['document_root'].'/tmp', $username);
				$app->system->chgrp($data['new']['document_root'].'/tmp', $groupname);
				$app->system->chown($data['new']['document_root'].'/web', $username);
				$app->system->chgrp($data['new']['document_root'].'/web', $groupname);
				$app->system->chown($data['new']['document_root'].'/web/error', $username);
				$app->system->chgrp($data['new']['document_root'].'/web/error', $groupname);
				$app->system->chown($data['new']['document_root'].'/web/stats', $username);
				$app->system->chgrp($data['new']['document_root'].'/web/stats', $groupname);
				//$app->system->chown($data['new']['document_root'].'/webdav',$username);
				//$app->system->chgrp($data['new']['document_root'].'/webdav',$groupname);
				$app->system->chown($data['new']['document_root'].'/private', $username);
				$app->system->chgrp($data['new']['document_root'].'/private', $groupname);
				
				if($web_folder != 'web'){
					$app->system->chown($data['new']['document_root'].'/'.$web_folder, $username);
					$app->system->chgrp($data['new']['document_root'].'/'.$web_folder, $groupname);
				}

				// If the security Level is set to medium
			} else {

				$app->system->chmod($data['new']['document_root'], 0755);
				$app->system->chmod($data['new']['document_root'].'/web', 0755);
				//$app->system->chmod($data['new']['document_root'].'/webdav',0755);
				$app->system->chmod($data['new']['document_root'].'/ssl', 0755);
				$app->system->chmod($data['new']['document_root'].'/cgi-bin', 0755);
				if($web_folder != 'web') $app->system->chmod($data['new']['document_root'].'/'.$web_folder, 0755);

				// make temp directory writable for nginx and the website users
				$app->system->chmod($data['new']['document_root'].'/tmp', 0770);

				// Set Log directory to 755 to make the logs accessible by the FTP user
				if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
					$app->system->chmod($data['new']['document_root'].'/'.$log_folder, 0755);
				}

				$app->system->chown($data['new']['document_root'], 'root');
				$app->system->chgrp($data['new']['document_root'], 'root');
				$app->system->chown($data['new']['document_root'].'/cgi-bin', $username);
				$app->system->chgrp($data['new']['document_root'].'/cgi-bin', $groupname);
				if(realpath($data['new']['document_root'].'/'.$log_folder . '/error.log') == '/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log') {
					$app->system->chown($data['new']['document_root'].'/'.$log_folder, 'root', false);
					$app->system->chgrp($data['new']['document_root'].'/'.$log_folder, $groupname, false);
				}

				$app->system->chown($data['new']['document_root'].'/ssl', 'root');
				$app->system->chgrp($data['new']['document_root'].'/ssl', 'root');
				$app->system->chown($data['new']['document_root'].'/tmp', $username);
				$app->system->chgrp($data['new']['document_root'].'/tmp', $groupname);
				$app->system->chown($data['new']['document_root'].'/web', $username);
				$app->system->chgrp($data['new']['document_root'].'/web', $groupname);
				$app->system->chown($data['new']['document_root'].'/web/error', $username);
				$app->system->chgrp($data['new']['document_root'].'/web/error', $groupname);
				$app->system->chown($data['new']['document_root'].'/web/stats', $username);
				$app->system->chgrp($data['new']['document_root'].'/web/stats', $groupname);
				//$app->system->chown($data['new']['document_root'].'/webdav',$username);
				//$app->system->chgrp($data['new']['document_root'].'/webdav',$groupname);
				
				if($web_folder != 'web'){
					$app->system->chown($data['new']['document_root'].'/'.$web_folder, $username);
					$app->system->chgrp($data['new']['document_root'].'/'.$web_folder, $groupname);
				}
			}
		} elseif((($data['new']['type'] == 'vhostsubdomain') || ($data['new']['type'] == 'vhostalias')) &&
				 (($this->action == 'insert') || ($web_config['set_folder_permissions_on_update'] == 'y'))) {

			if($web_config['security_level'] == 20) {
				$app->system->chmod($data['new']['document_root'].'/' . $web_folder, 0710);
				$app->system->chown($data['new']['document_root'].'/' . $web_folder, $username);
				$app->system->chgrp($data['new']['document_root'].'/' . $web_folder, $groupname);
				$app->system->chown($data['new']['document_root'].'/' . $web_folder . '/error', $username);
				$app->system->chgrp($data['new']['document_root'].'/' . $web_folder . '/error', $groupname);
				$app->system->chown($data['new']['document_root'].'/' . $web_folder . '/stats', $username);
				$app->system->chgrp($data['new']['document_root'].'/' . $web_folder . '/stats', $groupname);
			} else {
				$app->system->chmod($data['new']['document_root'].'/' . $web_folder, 0755);
				$app->system->chown($data['new']['document_root'].'/' . $web_folder, $username);
				$app->system->chgrp($data['new']['document_root'].'/' . $web_folder, $groupname);
				$app->system->chown($data['new']['document_root'].'/' . $web_folder . '/error', $username);
				$app->system->chgrp($data['new']['document_root'].'/' . $web_folder . '/error', $groupname);
				$app->system->chown($data['new']['document_root'].'/' . $web_folder . '/stats', $username);
				$app->system->chgrp($data['new']['document_root'].'/' . $web_folder . '/stats', $groupname);
			}
		}

		//* Protect web folders
		$app->system->web_folder_protection($data['new']['document_root'], true);

		if($data['new']['type'] == 'vhost') {
			// Change the ownership of the error log to the root user
			if(!@is_file('/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log')) exec('touch '.escapeshellcmd('/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log'));
			$app->system->chown('/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log', 'root');
			$app->system->chgrp('/var/log/ispconfig/httpd/'.$data['new']['domain'].'/error.log', 'root');
		}
		

		//* Create the vhost config file
		$app->load('tpl');

		$tpl = new tpl();
		$tpl->newTemplate('nginx_vhost.conf.master');

		// IPv4
		if($data['new']['ip_address'] == '') $data['new']['ip_address'] = '*';

		//* use ip-mapping for web-mirror
		if($data['new']['ip_address'] != '*' && $conf['mirror_server_id'] > 0) {
			$sql = "SELECT destination_ip FROM server_ip_map WHERE server_id = ? AND source_ip = ?";
			$newip = $app->db->queryOneRecord($sql, $conf['server_id'], $data['new']['ip_address']);
			$data['new']['ip_address'] = $newip['destination_ip'];
			unset($newip);
		}

		$vhost_data = $data['new'];

		//unset($vhost_data['ip_address']);
		$vhost_data['web_document_root'] = $data['new']['document_root'].'/' . $web_folder;
		$vhost_data['web_document_root_www'] = $web_config['website_basedir'].'/'.$data['new']['domain'].'/' . $web_folder;
		$vhost_data['web_basedir'] = $web_config['website_basedir'];

		// IPv6
		if($data['new']['ipv6_address'] != ''){
			$tpl->setVar('ipv6_enabled', 1);
			if ($conf['serverconfig']['web']['vhost_rewrite_v6'] == 'y') {
				if (isset($conf['serverconfig']['server']['v6_prefix']) && $conf['serverconfig']['server']['v6_prefix'] <> '') {
					$explode_v6prefix=explode(':', $conf['serverconfig']['server']['v6_prefix']);
					$explode_v6=explode(':', $data['new']['ipv6_address']);

					for ( $i = 0; $i <= count($explode_v6prefix)-1; $i++ ) {
						$explode_v6[$i] = $explode_v6prefix[$i];
					}
					$data['new']['ipv6_address'] = implode(':', $explode_v6);
					$vhost_data['ipv6_address'] = $data['new']['ipv6_address'];
				}
			}
		}

		// PHP-FPM
		// Support for multiple PHP versions
		/*
		if(trim($data['new']['fastcgi_php_version']) != ''){
			$default_php_fpm = false;
			list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['new']['fastcgi_php_version']));
			if(substr($custom_php_fpm_ini_dir,-1) != '/') $custom_php_fpm_ini_dir .= '/';
		} else {
			$default_php_fpm = true;
		}
		*/
		if($data['new']['php'] == 'php-fpm' || $data['new']['php'] == 'hhvm'){
			if(trim($data['new']['fastcgi_php_version']) != ''){
				$default_php_fpm = false;
				list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['new']['fastcgi_php_version']));
				if(substr($custom_php_fpm_ini_dir, -1) != '/') $custom_php_fpm_ini_dir .= '/';
			} else {
				$default_php_fpm = true;
			}
		} else {
			if(trim($data['old']['fastcgi_php_version']) != '' && $data['old']['php'] != 'no'){
				$default_php_fpm = false;
				list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['old']['fastcgi_php_version']));
				if(substr($custom_php_fpm_ini_dir, -1) != '/') $custom_php_fpm_ini_dir .= '/';
			} else {
				$default_php_fpm = true;
			}
		}

		if($default_php_fpm){
			$pool_dir = escapeshellcmd($web_config['php_fpm_pool_dir']);
		} else {
			$pool_dir = $custom_php_fpm_pool_dir;
		}
		$pool_dir = trim($pool_dir);
		if(substr($pool_dir, -1) != '/') $pool_dir .= '/';
		$pool_name = 'web'.$data['new']['domain_id'];
		$socket_dir = escapeshellcmd($web_config['php_fpm_socket_dir']);
		if(substr($socket_dir, -1) != '/') $socket_dir .= '/';

		if($data['new']['php_fpm_use_socket'] == 'y'){
			$use_tcp = 0;
			$use_socket = 1;
		} else {
			$use_tcp = 1;
			$use_socket = 0;
		}
		$tpl->setVar('use_tcp', $use_tcp);
		$tpl->setVar('use_socket', $use_socket);
		$fpm_socket = $socket_dir.$pool_name.'.sock';
		$tpl->setVar('fpm_socket', $fpm_socket);
		$tpl->setVar('rnd_php_dummy_file', '/'.md5(uniqid(microtime(), 1)).'.htm');
		$vhost_data['fpm_port'] = $web_config['php_fpm_start_port'] + $data['new']['domain_id'] - 1;

		// backwards compatibility; since ISPConfig 3.0.5, the PHP mode for nginx is called 'php-fpm' instead of 'fast-cgi'. The following line makes sure that old web sites that have 'fast-cgi' in the database still get PHP-FPM support.
		if($vhost_data['php'] == 'fast-cgi') $vhost_data['php'] = 'php-fpm';

		// Custom rewrite rules
		/*
		$final_rewrite_rules = array();
		$custom_rewrite_rules = $data['new']['rewrite_rules'];
		// Make sure we only have Unix linebreaks
		$custom_rewrite_rules = str_replace("\r\n", "\n", $custom_rewrite_rules);
		$custom_rewrite_rules = str_replace("\r", "\n", $custom_rewrite_rules);
		$custom_rewrite_rule_lines = explode("\n", $custom_rewrite_rules);
		if(is_array($custom_rewrite_rule_lines) && !empty($custom_rewrite_rule_lines)){
			foreach($custom_rewrite_rule_lines as $custom_rewrite_rule_line){
				$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
			}
		}
		$tpl->setLoop('rewrite_rules', $final_rewrite_rules);
		*/

		// Custom rewrite rules
		$final_rewrite_rules = array();

		if(isset($data['new']['rewrite_rules']) && trim($data['new']['rewrite_rules']) != '') {
			$custom_rewrite_rules = trim($data['new']['rewrite_rules']);
			$custom_rewrites_are_valid = true;
			// use this counter to make sure all curly brackets are properly closed
			$if_level = 0;
			// Make sure we only have Unix linebreaks
			$custom_rewrite_rules = str_replace("\r\n", "\n", $custom_rewrite_rules);
			$custom_rewrite_rules = str_replace("\r", "\n", $custom_rewrite_rules);
			$custom_rewrite_rule_lines = explode("\n", $custom_rewrite_rules);
			if(is_array($custom_rewrite_rule_lines) && !empty($custom_rewrite_rule_lines)){
				foreach($custom_rewrite_rule_lines as $custom_rewrite_rule_line){
					// ignore comments
					if(substr(ltrim($custom_rewrite_rule_line), 0, 1) == '#'){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// empty lines
					if(trim($custom_rewrite_rule_line) == ''){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// rewrite
					if(preg_match('@^\s*rewrite\s+(^/)?\S+(\$)?\s+\S+(\s+(last|break|redirect|permanent|))?\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					if(preg_match('@^\s*rewrite\s+(^/)?(\'[^\']+\'|"[^"]+")+(\$)?\s+(\'[^\']+\'|"[^"]+")+(\s+(last|break|redirect|permanent|))?\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					if(preg_match('@^\s*rewrite\s+(^/)?(\'[^\']+\'|"[^"]+")+(\$)?\s+\S+(\s+(last|break|redirect|permanent|))?\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					if(preg_match('@^\s*rewrite\s+(^/)?\S+(\$)?\s+(\'[^\']+\'|"[^"]+")+(\s+(last|break|redirect|permanent|))?\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// if
					if(preg_match('@^\s*if\s+\(\s*\$\S+(\s+(\!?(=|~|~\*))\s+(\S+|\".+\"))?\s*\)\s*\{\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						$if_level += 1;
						continue;
					}
					// if - check for files, directories, etc.
					if(preg_match('@^\s*if\s+\(\s*\!?-(f|d|e|x)\s+\S+\s*\)\s*\{\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						$if_level += 1;
						continue;
					}
					// break
					if(preg_match('@^\s*break\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// return code [ text ]
					if(preg_match('@^\s*return\s+\d\d\d.*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// return code URL
					// return URL
					if(preg_match('@^\s*return(\s+\d\d\d)?\s+(http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*\@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// set
					if(preg_match('@^\s*set\s+\$\S+\s+\S+\s*;\s*$@', $custom_rewrite_rule_line)){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						continue;
					}
					// closing curly bracket
					if(trim($custom_rewrite_rule_line) == '}'){
						$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
						$if_level -= 1;
						continue;
					}
					$custom_rewrites_are_valid = false;
					break;
				}
			}
			if(!$custom_rewrites_are_valid || $if_level != 0){
				$final_rewrite_rules = array();
			}
		}
		$tpl->setLoop('rewrite_rules', $final_rewrite_rules);

		// Custom nginx directives
		$final_nginx_directives = array();
		if(intval($data['new']['directive_snippets_id']) > 0){
			$snippet = $app->db->queryOneRecord("SELECT * FROM directive_snippets WHERE directive_snippets_id = ? AND type = 'nginx' AND active = 'y' AND customer_viewable = 'y'", $data['new']['directive_snippets_id']);
			if(isset($snippet['snippet'])){
				$nginx_directives = $snippet['snippet'];
			} else {
				$nginx_directives = $data['new']['nginx_directives'];
			}
			if($data['new']['enable_pagespeed'] == 'y'){
				// if PageSpeed is already enabled, don't add configuration again
				if(stripos($nginx_directives, 'pagespeed') !== false){
					$vhost_data['enable_pagespeed'] = false;
				} else {
					$vhost_data['enable_pagespeed'] = true;
				}
			} else {
				$vhost_data['enable_pagespeed'] = false;
			}
		} else {
			$nginx_directives = $data['new']['nginx_directives'];
			$vhost_data['enable_pagespeed'] = false;
		}
		
		// folder_directive_snippets
		if(trim($data['new']['folder_directive_snippets']) != ''){
			$data['new']['folder_directive_snippets'] = trim($data['new']['folder_directive_snippets']);
			$data['new']['folder_directive_snippets'] = str_replace("\r\n", "\n", $data['new']['folder_directive_snippets']);
			$data['new']['folder_directive_snippets'] = str_replace("\r", "\n", $data['new']['folder_directive_snippets']);
			$folder_directive_snippets_lines = explode("\n", $data['new']['folder_directive_snippets']);
			
			if(is_array($folder_directive_snippets_lines) && !empty($folder_directive_snippets_lines)){
				foreach($folder_directive_snippets_lines as $folder_directive_snippets_line){
					list($folder_directive_snippets_folder, $folder_directive_snippets_snippets_id) = explode(':', $folder_directive_snippets_line);
					
					$folder_directive_snippets_folder = trim($folder_directive_snippets_folder);
					$folder_directive_snippets_snippets_id = trim($folder_directive_snippets_snippets_id);
					
					if($folder_directive_snippets_folder  != '' && intval($folder_directive_snippets_snippets_id) > 0 && preg_match('@^((?!(.*\.\.)|(.*\./)|(.*//))[^/][\w/_\.\-]{1,100})?$@', $folder_directive_snippets_folder)){
						if(substr($folder_directive_snippets_folder, -1) != '/') $folder_directive_snippets_folder .= '/';
						if(substr($folder_directive_snippets_folder, 0, 1) == '/') $folder_directive_snippets_folder = substr($folder_directive_snippets_folder, 1);
						
						$master_snippet = $app->db->queryOneRecord("SELECT * FROM directive_snippets WHERE directive_snippets_id = ? AND type = 'nginx' AND active = 'y' AND customer_viewable = 'y'", intval($folder_directive_snippets_snippets_id));
						if(isset($master_snippet['snippet'])){
							$folder_directive_snippets_trans = array('{FOLDER}' => $folder_directive_snippets_folder, '{FOLDERMD5}' => md5($folder_directive_snippets_folder));
							$master_snippet['snippet'] = strtr($master_snippet['snippet'], $folder_directive_snippets_trans);
							$nginx_directives .= "\n\n".$master_snippet['snippet'];
							
							// create folder it it does not exist
							if(!is_dir($data['new']['document_root'].'/' . $web_folder.$folder_directive_snippets_folder)){
								$app->system->mkdirpath($data['new']['document_root'].'/' . $web_folder.$folder_directive_snippets_folder);
								$app->system->chown($data['new']['document_root'].'/' . $web_folder.$folder_directive_snippets_folder, $username);
								$app->system->chgrp($data['new']['document_root'].'/' . $web_folder.$folder_directive_snippets_folder, $groupname);
							}
						}
					}
				}
			}
		}
		
		// use vLib for template logic
		if(trim($nginx_directives) != '') {
			$nginx_directives_new = '';
			$ngx_conf_tpl = new tpl();
			$ngx_conf_tpl_tmp_file = tempnam($conf['temppath'], "ngx");
			file_put_contents($ngx_conf_tpl_tmp_file, $nginx_directives);
			$ngx_conf_tpl->newTemplate($ngx_conf_tpl_tmp_file);
			$ngx_conf_tpl->setVar('use_tcp', $use_tcp);
			$ngx_conf_tpl->setVar('use_socket', $use_socket);
			$ngx_conf_tpl->setVar('fpm_socket', $fpm_socket);
			$ngx_conf_tpl->setVar($vhost_data);
			$nginx_directives_new = $ngx_conf_tpl->grab();
			if(is_file($ngx_conf_tpl_tmp_file)) unlink($ngx_conf_tpl_tmp_file);
			if($nginx_directives_new != '') $nginx_directives = $nginx_directives_new;
			unset($nginx_directives_new);
		}
		
		// Make sure we only have Unix linebreaks
		$nginx_directives = str_replace("\r\n", "\n", $nginx_directives);
		$nginx_directives = str_replace("\r", "\n", $nginx_directives);
		$nginx_directive_lines = explode("\n", $nginx_directives);
		if(is_array($nginx_directive_lines) && !empty($nginx_directive_lines)){
			$trans = array(
				'{DOCROOT}' => $vhost_data['web_document_root_www'],
				'{DOCROOT_CLIENT}' => $vhost_data['web_document_root'],
				'{FASTCGIPASS}' => 'fastcgi_pass '.($data['new']['php_fpm_use_socket'] == 'y'? 'unix:'.$fpm_socket : '127.0.0.1:'.$vhost_data['fpm_port']).';'
			);
			foreach($nginx_directive_lines as $nginx_directive_line){
				$final_nginx_directives[] = array('nginx_directive' => strtr($nginx_directive_line, $trans));
			}
		}
		$tpl->setLoop('nginx_directives', $final_nginx_directives);

		// Check if a SSL cert exists
		$ssl_dir = $data['new']['document_root'].'/ssl';
		if(!isset($data['new']['ssl_domain']) OR empty($data['new']['ssl_domain'])) { $data['new']['ssl_domain'] = $data['new']['domain']; }
		$domain = $data['new']['ssl_domain'];
		if(!$domain) $domain = $data['new']['domain'];
		$tpl->setVar('ssl_domain', $domain);
		$key_file = $ssl_dir.'/'.$domain.'.key';
		$crt_file = $ssl_dir.'/'.$domain.'.crt';


		$tpl->setVar('ssl_letsencrypt', "n");
		
		if($data['new']['ssl'] == 'y' && $data['new']['ssl_letsencrypt'] == 'y') {
			//* be sure to have good domain
			if(substr($domain, 0, 2) === '*.') {
				// wildcard domain not yet supported by letsencrypt!
				$app->log('Wildcard domains not yet supported by letsencrypt, so changing ' . $domain . ' to ' . substr($domain, 2), LOGLEVEL_WARN);
				$domain = substr($domain, 2);
			}

			$data['new']['ssl_domain'] = $domain;
			$vhost_data['ssl_domain'] = $domain;
		}
		
		//* Generate Let's Encrypt SSL certificat
		if($data['new']['ssl'] == 'y' && $data['new']['ssl_letsencrypt'] == 'y' && ( // ssl and let's encrypt is active
			($data['old']['ssl'] == 'n' || $data['old']['ssl_letsencrypt'] == 'n') // we have new let's encrypt configuration
			|| ($data['old']['domain'] != $data['new']['domain']) // we have domain update
			|| ($data['old']['subdomain'] != $data['new']['subdomain']) // we have new or update on "auto" subdomain
			|| $this->update_letsencrypt == true
		)) {
			// default values
			$temp_domains = array();
			$lddomain     = $domain;
			$subdomains   = null;
			$aliasdomains = null;
			$sub_prefixes = array();

 			//* be sure to have good domain
 			if(substr($domain,0,4) != 'www.' && ($data['new']['subdomain'] == "www" OR $data['new']['subdomain'] == "*")) {
				$temp_domains[] = "www." . $domain;
			}

			//* then, add subdomain if we have
			$subdomains = $app->db->queryAllRecords('SELECT domain FROM web_domain WHERE parent_domain_id = '.intval($data['new']['domain_id'])." AND active = 'y' AND type = 'subdomain'");
			if(is_array($subdomains)) {
				foreach($subdomains as $subdomain) {
					$temp_domains[] = $subdomain['domain'];
					$sub_prefixes[] = str_replace($domain, "", $subdomain['domain']);
				}
 			}

			//* then, add alias domain if we have
			$aliasdomains = $app->db->queryAllRecords('SELECT domain,subdomain FROM web_domain WHERE parent_domain_id = '.intval($data['new']['domain_id'])." AND active = 'y' AND type = 'alias'");
			if(is_array($aliasdomains)) {
				foreach($aliasdomains as $aliasdomain) {
					$temp_domains[] = $aliasdomain['domain'];
					if(isset($aliasdomain['subdomain']) && substr($aliasdomain['domain'],0,4) != 'www.' && ($aliasdomain['subdomain'] == "www" OR $aliasdomain['subdomain'] == "*")) {
						$temp_domains[] = "www." . $aliasdomain['domain'];
					}
					
					foreach($sub_prefixes as $s) {
						$temp_domains[] = $s . $aliasdomain['domain'];
					}
				}
			}

			// prevent duplicate
			$temp_domains = array_unique($temp_domains);

			// generate cli format
			foreach($temp_domains as $temp_domain) {
				$lddomain .= (string) " --domains " . $temp_domain;
			}

			// useless data
			unset($subdomains);
			unset($temp_domains);

			$tpl->setVar('ssl_letsencrypt', "y");
			//* TODO: check dns entry is correct
			$crt_tmp_file = "/etc/letsencrypt/live/".$domain."/fullchain.pem";
			$key_tmp_file = "/etc/letsencrypt/live/".$domain."/privkey.pem";
			$webroot = $data['new']['document_root']."/web";

			//* check if we have already a Let's Encrypt cert
			//if(!file_exists($crt_tmp_file) && !file_exists($key_tmp_file)) {
				// we must not skip if cert exists, otherwise changed domains (alias or sub) won't make it to the cert
				$app->log("Create Let's Encrypt SSL Cert for: $domain", LOGLEVEL_DEBUG);
				$app->log("Let's Encrypt SSL Cert domains: $lddomain", LOGLEVEL_DEBUG);
				
				$success = false;
				$letsencrypt = explode("\n", shell_exec('which letsencrypt certbot /root/.local/share/letsencrypt/bin/letsencrypt'));
				$letsencrypt = reset($letsencrypt);
				if(is_executable($letsencrypt)) {
					$success = $this->_exec($letsencrypt . " certonly -n --text --agree-tos --expand --authenticator webroot --server https://acme-v01.api.letsencrypt.org/directory --rsa-key-size 4096 --email postmaster@$domain --domains $lddomain --webroot-path /usr/local/ispconfig/interface/acme");
				}
				if(!$success) {
					// error issuing cert
					$app->log('Let\'s Encrypt SSL Cert for: ' . $domain . ' could not be issued.', LOGLEVEL_WARN);
					$data['new']['ssl_letsencrypt'] = 'n';
					if($data['old']['ssl'] == 'n') $data['new']['ssl'] = 'n';
					/* Update the DB of the (local) Server */
					$app->db->query("UPDATE web_domain SET `ssl` = ?, `ssl_letsencrypt` = ? WHERE `domain` = ?", $data['new']['ssl'], 'n', $data['new']['domain']);
					/* Update also the master-DB of the Server-Farm */
					$app->dbmaster->query("UPDATE web_domain SET `ssl` = ?, `ssl_letsencrypt` = ? WHERE `domain` = ?", $data['new']['ssl'], 'n', $data['new']['domain']);
				}
			//}

			//* check is been correctly created
			if(file_exists($crt_tmp_file) OR file_exists($key_tmp_file)) {
				$date = date("YmdHis");
				//* TODO: check if is a symlink, if target same keep it, either remove it
				if(is_file($key_file)) {
					$app->system->copy($key_file, $key_file.'.old.'.$date);
					$app->system->chmod($key_file.'.old.'.$date, 0400);
					$app->system->unlink($key_file);
				}

				if ($web_config["website_symlinks_rel"] == 'y') {
					$this->create_relative_link(escapeshellcmd($key_tmp_file), escapeshellcmd($key_file));
				} else {
					exec("ln -s ".escapeshellcmd($key_tmp_file)." ".escapeshellcmd($key_file));
				}

				if(is_file($crt_file)) {
					$app->system->copy($crt_file, $crt_file.'.old.'.$date);
					$app->system->chmod($crt_file.'.old.'.$date, 0400);
					$app->system->unlink($crt_file);
				}

				if($web_config["website_symlinks_rel"] == 'y') {
					$this->create_relative_link(escapeshellcmd($crt_tmp_file), escapeshellcmd($crt_file));
				} else {
					exec("ln -s ".escapeshellcmd($crt_tmp_file)." ".escapeshellcmd($crt_file));
				}

				/* we don't need to store it.
				/* Update the DB of the (local) Server */
				$app->db->query("UPDATE web_domain SET ssl_request = '', ssl_cert = '', ssl_key = '' WHERE domain = ?", $data['new']['domain']);
				$app->db->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
				/* Update also the master-DB of the Server-Farm */
				$app->dbmaster->query("UPDATE web_domain SET ssl_request = '', ssl_cert = '', ssl_key = '' WHERE domain = ?", $data['new']['domain']);
				$app->dbmaster->query("UPDATE web_domain SET ssl_action = '' WHERE domain = ?", $data['new']['domain']);
			}
		};

		if($domain!='' && $data['new']['ssl'] == 'y' && @is_file($crt_file) && @is_file($key_file) && (@filesize($crt_file)>0)  && (@filesize($key_file)>0)) {
			$vhost_data['ssl_enabled'] = 1;
			$app->log('Enable SSL for: '.$domain, LOGLEVEL_DEBUG);
		} else {
			$vhost_data['ssl_enabled'] = 0;
			$app->log('SSL Disabled. '.$domain, LOGLEVEL_DEBUG);
		}

		// Set SEO Redirect
		if($data['new']['seo_redirect'] != ''){
			$vhost_data['seo_redirect_enabled'] = 1;
			$tmp_seo_redirects = $this->get_seo_redirects($data['new']);
			if(is_array($tmp_seo_redirects) && !empty($tmp_seo_redirects)){
				foreach($tmp_seo_redirects as $key => $val){
					$vhost_data[$key] = $val;
				}
			} else {
				$vhost_data['seo_redirect_enabled'] = 0;
			}
		} else {
			$vhost_data['seo_redirect_enabled'] = 0;
		}



		// Rewrite rules
		$own_rewrite_rules = array();
		$rewrite_rules = array();
		$local_rewrite_rules = array();
		if($data['new']['redirect_type'] != '' && $data['new']['redirect_path'] != '') {
			if(substr($data['new']['redirect_path'], -1) != '/') $data['new']['redirect_path'] .= '/';
			if(substr($data['new']['redirect_path'], 0, 8) == '[scheme]'){
				if($data['new']['redirect_type'] != 'proxy'){
					$data['new']['redirect_path'] = '$scheme'.substr($data['new']['redirect_path'], 8);
				} else {
					$data['new']['redirect_path'] = 'http'.substr($data['new']['redirect_path'], 8);
				}
			}

			// Custom proxy directives
			if($data['new']['redirect_type'] == 'proxy' && trim($data['new']['proxy_directives'] != '')){
				$final_proxy_directives = array();
				$proxy_directives = $data['new']['proxy_directives'];
				// Make sure we only have Unix linebreaks
				$proxy_directives = str_replace("\r\n", "\n", $proxy_directives);
				$proxy_directives = str_replace("\r", "\n", $proxy_directives);
				$proxy_directive_lines = explode("\n", $proxy_directives);
				if(is_array($proxy_directive_lines) && !empty($proxy_directive_lines)){
					foreach($proxy_directive_lines as $proxy_directive_line){
						$final_proxy_directives[] = array('proxy_directive' => $proxy_directive_line);
					}
				}
			} else {
				$final_proxy_directives = false;
			}

			switch($data['new']['subdomain']) {
			case 'www':
				$exclude_own_hostname = '';
				if(substr($data['new']['redirect_path'], 0, 1) == '/'){ // relative path
					if($data['new']['redirect_type'] == 'proxy'){
						$vhost_data['web_document_root_www_proxy'] = 'root '.$vhost_data['web_document_root_www'].';';
						$vhost_data['web_document_root_www'] .= substr($data['new']['redirect_path'], 0, -1);
						break;
					}
					$rewrite_exclude = '(?!/\b('.substr($data['new']['redirect_path'], 1, -1).(substr($data['new']['redirect_path'], 1, -1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
				} else { // URL - check if URL is local
					$tmp_redirect_path = $data['new']['redirect_path'];
					if(substr($tmp_redirect_path, 0, 7) == '$scheme') $tmp_redirect_path = 'http'.substr($tmp_redirect_path, 7);
					$tmp_redirect_path_parts = parse_url($tmp_redirect_path);
					if(($tmp_redirect_path_parts['host'] == $data['new']['domain'] || $tmp_redirect_path_parts['host'] == 'www.'.$data['new']['domain']) && ($tmp_redirect_path_parts['port'] == '80' || $tmp_redirect_path_parts['port'] == '443' || !isset($tmp_redirect_path_parts['port']))){
						// URL is local
						if(substr($tmp_redirect_path_parts['path'], -1) == '/') $tmp_redirect_path_parts['path'] = substr($tmp_redirect_path_parts['path'], 0, -1);
						if(substr($tmp_redirect_path_parts['path'], 0, 1) != '/') $tmp_redirect_path_parts['path'] = '/'.$tmp_redirect_path_parts['path'];
						//$rewrite_exclude = '((?!'.$tmp_redirect_path_parts['path'].'))';
						if($data['new']['redirect_type'] == 'proxy'){
							$vhost_data['web_document_root_www_proxy'] = 'root '.$vhost_data['web_document_root_www'].';';
							$vhost_data['web_document_root_www'] .= $tmp_redirect_path_parts['path'];
							break;
						} else {
							$rewrite_exclude = '(?!/\b('.substr($tmp_redirect_path_parts['path'], 1).(substr($tmp_redirect_path_parts['path'], 1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
							$exclude_own_hostname = $tmp_redirect_path_parts['host'];
						}
					} else {
						// external URL
						$rewrite_exclude = '(.?)/';
						if($data['new']['redirect_type'] == 'proxy'){
							$vhost_data['use_proxy'] = 'y';
							$rewrite_subdir = $tmp_redirect_path_parts['path'];
							if(substr($rewrite_subdir, 0, 1) == '/') $rewrite_subdir = substr($rewrite_subdir, 1);
							if(substr($rewrite_subdir, -1) != '/') $rewrite_subdir .= '/';
							if($rewrite_subdir == '/') $rewrite_subdir = '';
						}
					}
					unset($tmp_redirect_path);
					unset($tmp_redirect_path_parts);
				}
				$own_rewrite_rules[] = array( 'rewrite_domain'  => '^'.$this->_rewrite_quote($data['new']['domain']),
					'rewrite_type'   => ($data['new']['redirect_type'] == 'no')?'':$data['new']['redirect_type'],
					'rewrite_target'  => $data['new']['redirect_path'],
					'rewrite_exclude' => $rewrite_exclude,
					'rewrite_subdir' => $rewrite_subdir,
					'exclude_own_hostname' => $exclude_own_hostname,
					'proxy_directives' => $final_proxy_directives,
					'use_rewrite' => ($data['new']['redirect_type'] == 'proxy' ? false:true),
					'use_proxy' => ($data['new']['redirect_type'] == 'proxy' ? true:false));
				break;
			case '*':
				$exclude_own_hostname = '';
				if(substr($data['new']['redirect_path'], 0, 1) == '/'){ // relative path
					if($data['new']['redirect_type'] == 'proxy'){
						$vhost_data['web_document_root_www_proxy'] = 'root '.$vhost_data['web_document_root_www'].';';
						$vhost_data['web_document_root_www'] .= substr($data['new']['redirect_path'], 0, -1);
						break;
					}
					$rewrite_exclude = '(?!/\b('.substr($data['new']['redirect_path'], 1, -1).(substr($data['new']['redirect_path'], 1, -1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
				} else { // URL - check if URL is local
					$tmp_redirect_path = $data['new']['redirect_path'];
					if(substr($tmp_redirect_path, 0, 7) == '$scheme') $tmp_redirect_path = 'http'.substr($tmp_redirect_path, 7);
					$tmp_redirect_path_parts = parse_url($tmp_redirect_path);

					//if($is_serveralias && ($tmp_redirect_path_parts['port'] == '80' || $tmp_redirect_path_parts['port'] == '443' || !isset($tmp_redirect_path_parts['port']))){
					if($this->url_is_local($tmp_redirect_path_parts['host'], $data['new']['domain_id']) && ($tmp_redirect_path_parts['port'] == '80' || $tmp_redirect_path_parts['port'] == '443' || !isset($tmp_redirect_path_parts['port']))){
						// URL is local
						if(substr($tmp_redirect_path_parts['path'], -1) == '/') $tmp_redirect_path_parts['path'] = substr($tmp_redirect_path_parts['path'], 0, -1);
						if(substr($tmp_redirect_path_parts['path'], 0, 1) != '/') $tmp_redirect_path_parts['path'] = '/'.$tmp_redirect_path_parts['path'];
						//$rewrite_exclude = '((?!'.$tmp_redirect_path_parts['path'].'))';
						if($data['new']['redirect_type'] == 'proxy'){
							$vhost_data['web_document_root_www_proxy'] = 'root '.$vhost_data['web_document_root_www'].';';
							$vhost_data['web_document_root_www'] .= $tmp_redirect_path_parts['path'];
							break;
						} else {
							$rewrite_exclude = '(?!/\b('.substr($tmp_redirect_path_parts['path'], 1).(substr($tmp_redirect_path_parts['path'], 1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
							$exclude_own_hostname = $tmp_redirect_path_parts['host'];
						}
					} else {
						// external URL
						$rewrite_exclude = '(.?)/';
						if($data['new']['redirect_type'] == 'proxy'){
							$vhost_data['use_proxy'] = 'y';
							$rewrite_subdir = $tmp_redirect_path_parts['path'];
							if(substr($rewrite_subdir, 0, 1) == '/') $rewrite_subdir = substr($rewrite_subdir, 1);
							if(substr($rewrite_subdir, -1) != '/') $rewrite_subdir .= '/';
							if($rewrite_subdir == '/') $rewrite_subdir = '';
						}
					}
					unset($tmp_redirect_path);
					unset($tmp_redirect_path_parts);
				}
				$own_rewrite_rules[] = array( 'rewrite_domain'  => '(^|\.)'.$this->_rewrite_quote($data['new']['domain']),
					'rewrite_type'   => ($data['new']['redirect_type'] == 'no')?'':$data['new']['redirect_type'],
					'rewrite_target'  => $data['new']['redirect_path'],
					'rewrite_exclude' => $rewrite_exclude,
					'rewrite_subdir' => $rewrite_subdir,
					'exclude_own_hostname' => $exclude_own_hostname,
					'proxy_directives' => $final_proxy_directives,
					'use_rewrite' => ($data['new']['redirect_type'] == 'proxy' ? false:true),
					'use_proxy' => ($data['new']['redirect_type'] == 'proxy' ? true:false));
				break;
			default:
				if(substr($data['new']['redirect_path'], 0, 1) == '/'){ // relative path
					$exclude_own_hostname = '';
					if($data['new']['redirect_type'] == 'proxy'){
						$vhost_data['web_document_root_www_proxy'] = 'root '.$vhost_data['web_document_root_www'].';';
						$vhost_data['web_document_root_www'] .= substr($data['new']['redirect_path'], 0, -1);
						break;
					}
					$rewrite_exclude = '(?!/\b('.substr($data['new']['redirect_path'], 1, -1).(substr($data['new']['redirect_path'], 1, -1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
				} else { // URL - check if URL is local
					$tmp_redirect_path = $data['new']['redirect_path'];
					if(substr($tmp_redirect_path, 0, 7) == '$scheme') $tmp_redirect_path = 'http'.substr($tmp_redirect_path, 7);
					$tmp_redirect_path_parts = parse_url($tmp_redirect_path);
					if($tmp_redirect_path_parts['host'] == $data['new']['domain'] && ($tmp_redirect_path_parts['port'] == '80' || $tmp_redirect_path_parts['port'] == '443' || !isset($tmp_redirect_path_parts['port']))){
						// URL is local
						if(substr($tmp_redirect_path_parts['path'], -1) == '/') $tmp_redirect_path_parts['path'] = substr($tmp_redirect_path_parts['path'], 0, -1);
						if(substr($tmp_redirect_path_parts['path'], 0, 1) != '/') $tmp_redirect_path_parts['path'] = '/'.$tmp_redirect_path_parts['path'];
						//$rewrite_exclude = '((?!'.$tmp_redirect_path_parts['path'].'))';
						if($data['new']['redirect_type'] == 'proxy'){
							$vhost_data['web_document_root_www_proxy'] = 'root '.$vhost_data['web_document_root_www'].';';
							$vhost_data['web_document_root_www'] .= $tmp_redirect_path_parts['path'];
							break;
						} else {
							$rewrite_exclude = '(?!/\b('.substr($tmp_redirect_path_parts['path'], 1).(substr($tmp_redirect_path_parts['path'], 1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
							$exclude_own_hostname = $tmp_redirect_path_parts['host'];
						}
					} else {
						// external URL
						$rewrite_exclude = '(.?)/';
						if($data['new']['redirect_type'] == 'proxy'){
							$vhost_data['use_proxy'] = 'y';
							$rewrite_subdir = $tmp_redirect_path_parts['path'];
							if(substr($rewrite_subdir, 0, 1) == '/') $rewrite_subdir = substr($rewrite_subdir, 1);
							if(substr($rewrite_subdir, -1) != '/') $rewrite_subdir .= '/';
							if($rewrite_subdir == '/') $rewrite_subdir = '';
						}
					}
					unset($tmp_redirect_path);
					unset($tmp_redirect_path_parts);
				}
				$own_rewrite_rules[] = array( 'rewrite_domain'  => '^'.$this->_rewrite_quote($data['new']['domain']),
					'rewrite_type'   => ($data['new']['redirect_type'] == 'no')?'':$data['new']['redirect_type'],
					'rewrite_target'  => $data['new']['redirect_path'],
					'rewrite_exclude' => $rewrite_exclude,
					'rewrite_subdir' => $rewrite_subdir,
					'exclude_own_hostname' => $exclude_own_hostname,
					'proxy_directives' => $final_proxy_directives,
					'use_rewrite' => ($data['new']['redirect_type'] == 'proxy' ? false:true),
					'use_proxy' => ($data['new']['redirect_type'] == 'proxy' ? true:false));
			}
		}
		
		// http2 or spdy?
		$vhost_data['enable_http2']  = 'n';
		if($vhost_data['enable_spdy'] == 'y'){
			// check if nginx support http_v2; if so, use that instead of spdy
			exec("2>&1 nginx -V | tr -- - '\n' | grep http_v2_module", $tmp_output, $tmp_retval);
			if($tmp_retval == 0){
				$vhost_data['enable_http2']  = 'y';
				$vhost_data['enable_spdy'] = 'n';
			}
			unset($tmp_output, $tmp_retval);
		}

		$tpl->setVar($vhost_data);

		$server_alias = array();

		// get autoalias
		$auto_alias = $web_config['website_autoalias'];
		if($auto_alias != '') {
			// get the client username
			$client = $app->db->queryOneRecord("SELECT `username` FROM `client` WHERE `client_id` = ?", $client_id);
			$aa_search = array('[client_id]', '[website_id]', '[client_username]', '[website_domain]');
			$aa_replace = array($client_id, $data['new']['domain_id'], $client['username'], $data['new']['domain']);
			$auto_alias = str_replace($aa_search, $aa_replace, $auto_alias);
			unset($client);
			unset($aa_search);
			unset($aa_replace);
			$server_alias[] .= $auto_alias.' ';
		}

		switch($data['new']['subdomain']) {
		case 'www':
			$server_alias[] = 'www.'.$data['new']['domain'].' ';
			break;
		case '*':
			$server_alias[] = '*.'.$data['new']['domain'].' ';
			break;
		}

		// get alias domains (co-domains and subdomains)
		$aliases = $app->db->queryAllRecords("SELECT * FROM web_domain WHERE parent_domain_id = ? AND active = 'y' AND (type != 'vhostsubdomain' AND type != 'vhostalias')", $data['new']['domain_id']);
		$alias_seo_redirects = array();
		if(is_array($aliases)) {
			foreach($aliases as $alias) {

				// Custom proxy directives
				if($alias['redirect_type'] == 'proxy' && trim($alias['proxy_directives'] != '')){
					$final_proxy_directives = array();
					$proxy_directives = $alias['proxy_directives'];
					// Make sure we only have Unix linebreaks
					$proxy_directives = str_replace("\r\n", "\n", $proxy_directives);
					$proxy_directives = str_replace("\r", "\n", $proxy_directives);
					$proxy_directive_lines = explode("\n", $proxy_directives);
					if(is_array($proxy_directive_lines) && !empty($proxy_directive_lines)){
						foreach($proxy_directive_lines as $proxy_directive_line){
							$final_proxy_directives[] = array('proxy_directive' => $proxy_directive_line);
						}
					}
				} else {
					$final_proxy_directives = false;
				}

				if($alias['redirect_type'] == '' || $alias['redirect_path'] == '' || substr($alias['redirect_path'], 0, 1) == '/') {
					switch($alias['subdomain']) {
					case 'www':
						$server_alias[] = 'www.'.$alias['domain'].' '.$alias['domain'].' ';
						break;
					case '*':
						$server_alias[] = '*.'.$alias['domain'].' '.$alias['domain'].' ';
						break;
					default:
						$server_alias[] = $alias['domain'].' ';
						break;
					}
					$app->log('Add server alias: '.$alias['domain'], LOGLEVEL_DEBUG);

					// Add SEO redirects for alias domains
					if($alias['seo_redirect'] != '' && $data['new']['seo_redirect'] != '*_to_www_domain_tld' && $data['new']['seo_redirect'] != '*_to_domain_tld' && ($alias['type'] == 'alias' || ($alias['type'] == 'subdomain' && $data['new']['seo_redirect'] != '*_domain_tld_to_www_domain_tld' && $data['new']['seo_redirect'] != '*_domain_tld_to_domain_tld'))){
						$tmp_seo_redirects = $this->get_seo_redirects($alias, 'alias_');
						if(is_array($tmp_seo_redirects) && !empty($tmp_seo_redirects)){
							$alias_seo_redirects[] = $tmp_seo_redirects;
						}
					}
				}

				// Local Rewriting (inside vhost server {} container)
				if($alias['redirect_type'] != '' && substr($alias['redirect_path'], 0, 1) == '/' && $alias['redirect_type'] != 'proxy') {  // proxy makes no sense with local path
					if(substr($alias['redirect_path'], -1) != '/') $alias['redirect_path'] .= '/';
					$rewrite_exclude = '(?!/\b('.substr($alias['redirect_path'], 1, -1).(substr($alias['redirect_path'], 1, -1) != ''? '|': '').'stats'.($vhost_data['errordocs'] == 1 ? '|error' : '').')\b)/';
					switch($alias['subdomain']) {
					case 'www':
						// example.com
						$local_rewrite_rules[] = array( 'local_redirect_origin_domain'  => $alias['domain'],
							'local_redirect_operator' => '=',
							'local_redirect_exclude' => $rewrite_exclude,
							'local_redirect_target' => $alias['redirect_path'],
							'local_redirect_type' => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type']);

						// www.example.com
						$local_rewrite_rules[] = array( 'local_redirect_origin_domain'  => 'www.'.$alias['domain'],
							'local_redirect_operator' => '=',
							'local_redirect_exclude' => $rewrite_exclude,
							'local_redirect_target' => $alias['redirect_path'],
							'local_redirect_type' => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type']);
						break;
					case '*':
						$local_rewrite_rules[] = array( 'local_redirect_origin_domain'  => '^('.str_replace('.', '\.', $alias['domain']).'|.+\.'.str_replace('.', '\.', $alias['domain']).')$',
							'local_redirect_operator' => '~*',
							'local_redirect_exclude' => $rewrite_exclude,
							'local_redirect_target' => $alias['redirect_path'],
							'local_redirect_type' => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type']);
						break;
					default:
						$local_rewrite_rules[] = array( 'local_redirect_origin_domain'  => $alias['domain'],
							'local_redirect_operator' => '=',
							'local_redirect_exclude' => $rewrite_exclude,
							'local_redirect_target' => $alias['redirect_path'],
							'local_redirect_type' => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type']);
					}
				}

				// External Rewriting (extra server {} containers)
				if($alias['redirect_type'] != '' && $alias['redirect_path'] != '' && substr($alias['redirect_path'], 0, 1) != '/') {
					if(substr($alias['redirect_path'], -1) != '/') $alias['redirect_path'] .= '/';
					if(substr($alias['redirect_path'], 0, 8) == '[scheme]'){
						if($alias['redirect_type'] != 'proxy'){
							$alias['redirect_path'] = '$scheme'.substr($alias['redirect_path'], 8);
						} else {
							$alias['redirect_path'] = 'http'.substr($alias['redirect_path'], 8);
						}
					}

					switch($alias['subdomain']) {
					case 'www':
						if($alias['redirect_type'] == 'proxy'){
							$tmp_redirect_path = $alias['redirect_path'];
							$tmp_redirect_path_parts = parse_url($tmp_redirect_path);
							$rewrite_subdir = $tmp_redirect_path_parts['path'];
							if(substr($rewrite_subdir, 0, 1) == '/') $rewrite_subdir = substr($rewrite_subdir, 1);
							if(substr($rewrite_subdir, -1) != '/') $rewrite_subdir .= '/';
							if($rewrite_subdir == '/') $rewrite_subdir = '';
						}

						if($alias['redirect_type'] != 'proxy'){
							if(substr($alias['redirect_path'], -1) == '/') $alias['redirect_path'] = substr($alias['redirect_path'], 0, -1);
						}
						// Add SEO redirects for alias domains
						$alias_seo_redirects2 = array();
						if($alias['seo_redirect'] != ''){
							$tmp_seo_redirects = $this->get_seo_redirects($alias, 'alias_', 'none');
							if(is_array($tmp_seo_redirects) && !empty($tmp_seo_redirects)){
								$alias_seo_redirects2[] = $tmp_seo_redirects;
							}
						}
						$rewrite_rules[] = array( 'rewrite_domain'  => $alias['domain'],
							'rewrite_type'   => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type'],
							'rewrite_target'  => $alias['redirect_path'],
							'rewrite_subdir' => $rewrite_subdir,
							'proxy_directives' => $final_proxy_directives,
							'use_rewrite' => ($alias['redirect_type'] == 'proxy' ? false:true),
							'use_proxy' => ($alias['redirect_type'] == 'proxy' ? true:false),
							'alias_seo_redirects2' => (count($alias_seo_redirects2) > 0 ? $alias_seo_redirects2 : false));

						// Add SEO redirects for alias domains
						$alias_seo_redirects2 = array();
						if($alias['seo_redirect'] != ''){
							$tmp_seo_redirects = $this->get_seo_redirects($alias, 'alias_', 'www');
							if(is_array($tmp_seo_redirects) && !empty($tmp_seo_redirects)){
								$alias_seo_redirects2[] = $tmp_seo_redirects;
							}
						}
						$rewrite_rules[] = array( 'rewrite_domain'  => 'www.'.$alias['domain'],
							'rewrite_type'   => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type'],
							'rewrite_target'  => $alias['redirect_path'],
							'rewrite_subdir' => $rewrite_subdir,
							'proxy_directives' => $final_proxy_directives,
							'use_rewrite' => ($alias['redirect_type'] == 'proxy' ? false:true),
							'use_proxy' => ($alias['redirect_type'] == 'proxy' ? true:false),
							'alias_seo_redirects2' => (count($alias_seo_redirects2) > 0 ? $alias_seo_redirects2 : false));
						break;
					case '*':
						if($alias['redirect_type'] == 'proxy'){
							$tmp_redirect_path = $alias['redirect_path'];
							$tmp_redirect_path_parts = parse_url($tmp_redirect_path);
							$rewrite_subdir = $tmp_redirect_path_parts['path'];
							if(substr($rewrite_subdir, 0, 1) == '/') $rewrite_subdir = substr($rewrite_subdir, 1);
							if(substr($rewrite_subdir, -1) != '/') $rewrite_subdir .= '/';
							if($rewrite_subdir == '/') $rewrite_subdir = '';
						}

						if($alias['redirect_type'] != 'proxy'){
							if(substr($alias['redirect_path'], -1) == '/') $alias['redirect_path'] = substr($alias['redirect_path'], 0, -1);
						}
						// Add SEO redirects for alias domains
						$alias_seo_redirects2 = array();
						if($alias['seo_redirect'] != ''){
							$tmp_seo_redirects = $this->get_seo_redirects($alias, 'alias_');
							if(is_array($tmp_seo_redirects) && !empty($tmp_seo_redirects)){
								$alias_seo_redirects2[] = $tmp_seo_redirects;
							}
						}
						$rewrite_rules[] = array( 'rewrite_domain'  => $alias['domain'].' *.'.$alias['domain'],
							'rewrite_type'   => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type'],
							'rewrite_target'  => $alias['redirect_path'],
							'rewrite_subdir' => $rewrite_subdir,
							'proxy_directives' => $final_proxy_directives,
							'use_rewrite' => ($alias['redirect_type'] == 'proxy' ? false:true),
							'use_proxy' => ($alias['redirect_type'] == 'proxy' ? true:false),
							'alias_seo_redirects2' => (count($alias_seo_redirects2) > 0 ? $alias_seo_redirects2 : false));
						break;
					default:
						if($alias['redirect_type'] == 'proxy'){
							$tmp_redirect_path = $alias['redirect_path'];
							$tmp_redirect_path_parts = parse_url($tmp_redirect_path);
							$rewrite_subdir = $tmp_redirect_path_parts['path'];
							if(substr($rewrite_subdir, 0, 1) == '/') $rewrite_subdir = substr($rewrite_subdir, 1);
							if(substr($rewrite_subdir, -1) != '/') $rewrite_subdir .= '/';
							if($rewrite_subdir == '/') $rewrite_subdir = '';
						}

						if($alias['redirect_type'] != 'proxy'){
							if(substr($alias['redirect_path'], -1) == '/') $alias['redirect_path'] = substr($alias['redirect_path'], 0, -1);
						}
						if(substr($alias['domain'], 0, 2) === '*.') $domain_rule = '*.'.substr($alias['domain'], 2);
						else $domain_rule = $alias['domain'];
						// Add SEO redirects for alias domains
						$alias_seo_redirects2 = array();
						if($alias['seo_redirect'] != ''){
							if(substr($alias['domain'], 0, 2) === '*.'){
								$tmp_seo_redirects = $this->get_seo_redirects($alias, 'alias_');
							} else {
								$tmp_seo_redirects = $this->get_seo_redirects($alias, 'alias_', 'none');
							}
							if(is_array($tmp_seo_redirects) && !empty($tmp_seo_redirects)){
								$alias_seo_redirects2[] = $tmp_seo_redirects;
							}
						}
						$rewrite_rules[] = array( 'rewrite_domain'  => $domain_rule,
							'rewrite_type'   => ($alias['redirect_type'] == 'no')?'':$alias['redirect_type'],
							'rewrite_target'  => $alias['redirect_path'],
							'rewrite_subdir' => $rewrite_subdir,
							'proxy_directives' => $final_proxy_directives,
							'use_rewrite' => ($alias['redirect_type'] == 'proxy' ? false:true),
							'use_proxy' => ($alias['redirect_type'] == 'proxy' ? true:false),
							'alias_seo_redirects2' => (count($alias_seo_redirects2) > 0 ? $alias_seo_redirects2 : false));
					}
				}
			}
		}

		//* If we have some alias records
		if(count($server_alias) > 0) {
			$server_alias_str = '';
			$n = 0;

			foreach($server_alias as $tmp_alias) {
				$server_alias_str .= $tmp_alias;
			}
			unset($tmp_alias);

			$tpl->setVar('alias', trim($server_alias_str));
		} else {
			$tpl->setVar('alias', '');
		}

		if(count($rewrite_rules) > 0) {
			$tpl->setLoop('redirects', $rewrite_rules);
		}
		if(count($own_rewrite_rules) > 0) {
			$tpl->setLoop('own_redirects', $own_rewrite_rules);
		}
		if(count($local_rewrite_rules) > 0) {
			$tpl->setLoop('local_redirects', $local_rewrite_rules);
		}
		if(count($alias_seo_redirects) > 0) {
			$tpl->setLoop('alias_seo_redirects', $alias_seo_redirects);
		}

		//* Create basic http auth for website statistics
		$tpl->setVar('stats_auth_passwd_file', $data['new']['document_root']."/web/stats/.htpasswd_stats");

		// Create basic http auth for other directories
		$basic_auth_locations = $this->_create_web_folder_auth_configuration($data['new']);
		if(is_array($basic_auth_locations) && !empty($basic_auth_locations)) $tpl->setLoop('basic_auth_locations', $basic_auth_locations);

		$vhost_file = escapeshellcmd($web_config['nginx_vhost_conf_dir'].'/'.$data['new']['domain'].'.vhost');
		//* Make a backup copy of vhost file
		if(file_exists($vhost_file)) copy($vhost_file, $vhost_file.'~');

		//* Write vhost file
		$app->system->file_put_contents($vhost_file, $this->nginx_merge_locations($tpl->grab()));
		$app->log('Writing the vhost file: '.$vhost_file, LOGLEVEL_DEBUG);
		unset($tpl);

		//* Set the symlink to enable the vhost
		//* First we check if there is a old type of symlink and remove it
		$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/'.$data['new']['domain'].'.vhost');
		if(is_link($vhost_symlink)) unlink($vhost_symlink);

		//* Remove old or changed symlinks
		if($data['new']['subdomain'] != $data['old']['subdomain'] or $data['new']['active'] == 'n') {
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/900-'.$data['new']['domain'].'.vhost');
			if(is_link($vhost_symlink)) {
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/100-'.$data['new']['domain'].'.vhost');
			if(is_link($vhost_symlink)) {
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
		}

		//* New symlink
		if($data['new']['subdomain'] == '*') {
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/900-'.$data['new']['domain'].'.vhost');
		} else {
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/100-'.$data['new']['domain'].'.vhost');
		}
		if($data['new']['active'] == 'y' && !is_link($vhost_symlink)) {
			symlink($vhost_file, $vhost_symlink);
			$app->log('Creating symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
		}

		// remove old symlink and vhost file, if domain name of the site has changed
		if($this->action == 'update' && $data['old']['domain'] != '' && $data['new']['domain'] != $data['old']['domain']) {
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/900-'.$data['old']['domain'].'.vhost');
			if(is_link($vhost_symlink)) {
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/100-'.$data['old']['domain'].'.vhost');
			if(is_link($vhost_symlink)) {
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/'.$data['old']['domain'].'.vhost');
			if(is_link($vhost_symlink)) {
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
			$vhost_file = escapeshellcmd($web_config['nginx_vhost_conf_dir'].'/'.$data['old']['domain'].'.vhost');
			$app->system->unlink($vhost_file);
			$app->log('Removing file: '.$vhost_file, LOGLEVEL_DEBUG);
		}

		// create password file for stats directory
		if(!is_file($data['new']['document_root'].'/web/stats/.htpasswd_stats') || $data['new']['stats_password'] != $data['old']['stats_password']) {
			if(trim($data['new']['stats_password']) != '') {
				$htp_file = 'admin:'.trim($data['new']['stats_password']);
				$app->system->file_put_contents($data['new']['document_root'].'/web/stats/.htpasswd_stats', $htp_file);
				$app->system->chmod($data['new']['document_root'].'/web/stats/.htpasswd_stats', 0755);
				unset($htp_file);
			}
		}

		//* Create awstats configuration
		if($data['new']['stats_type'] == 'awstats' && ($data['new']['type'] == 'vhost' || $data['new']['type'] == 'vhostsubdomain' || $data['new']['type'] == 'vhostalias')) {
			$this->awstats_update($data, $web_config);
		}

		$this->php_fpm_pool_update($data, $web_config, $pool_dir, $pool_name, $socket_dir);
		$this->hhvm_update($data, $web_config);

		if($web_config['check_apache_config'] == 'y') {
			//* Test if nginx starts with the new configuration file
			$nginx_online_status_before_restart = $this->_checkTcp('localhost', 80);
			$app->log('nginx status is: '.($nginx_online_status_before_restart === true? 'running' : 'down'), LOGLEVEL_DEBUG);

			$retval = $app->services->restartService('httpd', 'restart'); // $retval['retval'] is 0 on success and > 0 on failure
			$app->log('nginx restart return value is: '.$retval['retval'], LOGLEVEL_DEBUG);

			// wait a few seconds, before we test the apache status again
			sleep(2);

			//* Check if nginx restarted successfully if it was online before
			$nginx_online_status_after_restart = $this->_checkTcp('localhost', 80);
			$app->log('nginx online status after restart is: '.($nginx_online_status_after_restart === true? 'running' : 'down'), LOGLEVEL_DEBUG);
			if($nginx_online_status_before_restart && !$nginx_online_status_after_restart || $retval['retval'] > 0) {
				$app->log('nginx did not restart after the configuration change for website '.$data['new']['domain'].'. Reverting the configuration. Saved non-working config as '.$vhost_file.'.err', LOGLEVEL_WARN);
				if(is_array($retval['output']) && !empty($retval['output'])){
					$app->log('Reason for nginx restart failure: '.implode("\n", $retval['output']), LOGLEVEL_WARN);
					$app->dbmaster->datalogError(implode("\n", $retval['output']));
				} else {
					// if no output is given, check again
					exec('nginx -t 2>&1', $tmp_output, $tmp_retval);
					if($tmp_retval > 0 && is_array($tmp_output) && !empty($tmp_output)){
						$app->log('Reason for nginx restart failure: '.implode("\n", $tmp_output), LOGLEVEL_WARN);
						$app->dbmaster->datalogError(implode("\n", $tmp_output));
					}
					unset($tmp_output, $tmp_retval);
				}
				$app->system->copy($vhost_file, $vhost_file.'.err');

				if(is_file($vhost_file.'~')) {
					//* Copy back the last backup file
					$app->system->copy($vhost_file.'~', $vhost_file);
				} else {
					//* There is no backup file, so we create a empty vhost file with a warning message inside
					$app->system->file_put_contents($vhost_file, "# nginx did not start after modifying this vhost file.\n# Please check file $vhost_file.err for syntax errors.");
				}

				if($this->ssl_certificate_changed === true) {

					$ssl_dir = $data['new']['document_root'].'/ssl';
					$domain = $data['new']['ssl_domain'];
					$key_file = $ssl_dir.'/'.$domain.'.key.org';
					$key_file2 = $ssl_dir.'/'.$domain.'.key';
					$csr_file = $ssl_dir.'/'.$domain.'.csr';
					$crt_file = $ssl_dir.'/'.$domain.'.crt';
					//$bundle_file = $ssl_dir.'/'.$domain.'.bundle';

					//* Backup the files that might have caused the error
					if(is_file($key_file)){
						$app->system->copy($key_file, $key_file.'.err');
						$app->system->chmod($key_file.'.err', 0400);
					}
					if(is_file($key_file2)){
						$app->system->copy($key_file2, $key_file2.'.err');
						$app->system->chmod($key_file2.'.err', 0400);
					}
					if(is_file($csr_file)) $app->system->copy($csr_file, $csr_file.'.err');
					if(is_file($crt_file)) $app->system->copy($crt_file, $crt_file.'.err');
					//if(is_file($bundle_file)) $app->system->copy($bundle_file,$bundle_file.'.err');

					//* Restore the ~ backup files
					if(is_file($key_file.'~')) $app->system->copy($key_file.'~', $key_file);
					if(is_file($key_file2.'~')) $app->system->copy($key_file2.'~', $key_file2);
					if(is_file($crt_file.'~')) $app->system->copy($crt_file.'~', $crt_file);
					if(is_file($csr_file.'~')) $app->system->copy($csr_file.'~', $csr_file);
					//if(is_file($bundle_file.'~')) $app->system->copy($bundle_file.'~',$bundle_file);

					$app->log('nginx did not restart after the configuration change for website '.$data['new']['domain'].' Reverting the SSL configuration. Saved non-working SSL files with .err extension.', LOGLEVEL_WARN);
				}

				$app->services->restartService('httpd', 'restart');
			}
		} else {
			//* We do not check the nginx config after changes (is faster)
			$app->services->restartServiceDelayed('httpd', 'reload');
		}

		//* The vhost is written and apache has been restarted, so we
		// can reset the ssl changed var to false and cleanup some files
		$this->ssl_certificate_changed = false;

		$ssl_dir = $data['new']['document_root'].'/ssl';
		$domain = $data['new']['ssl_domain'];
		$key_file = $ssl_dir.'/'.$domain.'.key.org';
		$key_file2 = $ssl_dir.'/'.$domain.'.key';
		$csr_file = $ssl_dir.'/'.$domain.'.csr';
		$crt_file = $ssl_dir.'/'.$domain.'.crt';
		//$bundle_file = $ssl_dir.'/'.$domain.'.bundle';

		if(@is_file($key_file.'~')) $app->system->unlink($key_file.'~');
		if(@is_file($key2_file.'~')) $app->system->unlink($key2_file.'~');
		if(@is_file($crt_file.'~')) $app->system->unlink($crt_file.'~');
		if(@is_file($csr_file.'~')) $app->system->unlink($csr_file.'~');
		//if(@is_file($bundle_file.'~')) $app->system->unlink($bundle_file.'~');

		// Remove the backup copy of the config file.
		if(@is_file($vhost_file.'~')) $app->system->unlink($vhost_file.'~');

		//* Unset action to clean it for next processed vhost.
		$this->action = '';

	}

	function delete($event_name, $data) {
		global $app, $conf;

		// load the server configuration options
		$app->uses('getconf');
		$app->uses('system');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');

		if($data['old']['type'] == 'vhost' || $data['old']['type'] == 'vhostsubdomain' || $data['old']['type'] == 'vhostalias') $app->system->web_folder_protection($data['old']['document_root'], false);

		//* Check if this is a chrooted setup
		if($web_config['website_basedir'] != '' && @is_file($web_config['website_basedir'].'/etc/passwd')) {
			$nginx_chrooted = true;
		} else {
			$nginx_chrooted = false;
		}

		//* Remove the mounts
		$log_folder = 'log';
		$web_folder = '';
		if($data['old']['type'] == 'vhostsubdomain' || $data['old']['type'] == 'vhostalias') {
			$tmp = $app->db->queryOneRecord('SELECT `domain`,`document_root` FROM web_domain WHERE domain_id = ?', $data['old']['parent_domain_id']);
			if($tmp['domain'] != ''){
				$subdomain_host = preg_replace('/^(.*)\.' . preg_quote($tmp['domain'], '/') . '$/', '$1', $data['old']['domain']);
			} else {
				// get log folder from /etc/fstab
				/*
				$bind_mounts = $app->system->file_get_contents('/etc/fstab');
				$bind_mount_lines = explode("\n", $bind_mounts);
				if(is_array($bind_mount_lines) && !empty($bind_mount_lines)){
					foreach($bind_mount_lines as $bind_mount_line){
						$bind_mount_line = preg_replace('/\s+/', ' ', $bind_mount_line);
						$bind_mount_parts = explode(' ', $bind_mount_line);
						if(is_array($bind_mount_parts) && !empty($bind_mount_parts)){
							if($bind_mount_parts[0] == '/var/log/ispconfig/httpd/'.$data['old']['domain'] && $bind_mount_parts[2] == 'none' && strpos($bind_mount_parts[3], 'bind') !== false){
								$subdomain_host = str_replace($data['old']['document_root'].'/log/', '', $bind_mount_parts[1]);
							}
						}
					}
				}
				*/
				// we are deleting the parent domain, so we can delete everything in the log directory
				$subdomain_hosts = array();
				$files = array_diff(scandir($data['old']['document_root'].'/'.$log_folder), array('.', '..'));
				if(is_array($files) && !empty($files)){
					foreach($files as $file){
						if(is_dir($data['old']['document_root'].'/'.$log_folder.'/'.$file)){
							$subdomain_hosts[] = $file;
						}
					}
				}
			}
			if(is_array($subdomain_hosts) && !empty($subdomain_hosts)){
				$log_folders = array();
				foreach($subdomain_hosts as $subdomain_host){
					$log_folders[] = $log_folder.'/'.$subdomain_host;
				}
			} else {
				if($subdomain_host == '') $subdomain_host = 'web'.$data['old']['domain_id'];
				$log_folder .= '/' . $subdomain_host;
			}
			$web_folder = $data['old']['web_folder'];
			unset($tmp);
			unset($subdomain_hosts);
		}

		if($data['old']['type'] == 'vhost' || $data['old']['type'] == 'vhostsubdomain' || $data['old']['type'] == 'vhostalias'){
			if(is_array($log_folders) && !empty($log_folders)){
				foreach($log_folders as $log_folder){
					//if($app->system->is_mounted($data['old']['document_root'].'/'.$log_folder)) exec('umount '.escapeshellarg($data['old']['document_root'].'/'.$log_folder));
					//exec('fuser -km '.escapeshellarg($data['old']['document_root'].'/'.$log_folder).' 2>/dev/null');
					exec('umount '.escapeshellarg($data['old']['document_root'].'/'.$log_folder).' 2>/dev/null');
				}
			} else {
				//if($app->system->is_mounted($data['old']['document_root'].'/'.$log_folder)) exec('umount '.escapeshellarg($data['old']['document_root'].'/'.$log_folder));
				//exec('fuser -km '.escapeshellarg($data['old']['document_root'].'/'.$log_folder).' 2>/dev/null');
				exec('umount '.escapeshellarg($data['old']['document_root'].'/'.$log_folder).' 2>/dev/null');
			}

			// remove letsencrypt if it exists (renew will always fail otherwise)
			$domain = $data['old']['ssl_domain'];
			if(!$domain) $domain = $data['old']['domain'];
			if(substr($domain, 0, 2) === '*.') {
				// wildcard domain not yet supported by letsencrypt!
				$domain = substr($domain, 2);
			}
			//$crt_tmp_file = "/etc/letsencrypt/live/".$domain."/cert.pem";
			//$key_tmp_file = "/etc/letsencrypt/live/".$domain."/privkey.pem";
			$le_conf_file = '/etc/letsencrypt/renewal/' . $domain . '.conf';
			@rename('/etc/letsencrypt/renewal/' . $domain . '.conf', '/etc/letsencrypt/renewal/' . $domain . '.conf~backup');
		}

		//* remove mountpoint from fstab
		if(is_array($log_folders) && !empty($log_folders)){
			foreach($log_folders as $log_folder){
				$fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$log_folder.'    none    bind';
				$app->system->removeLine('/etc/fstab', $fstab_line);
			}
		} else {
			$fstab_line = '/var/log/ispconfig/httpd/'.$data['old']['domain'].' '.$data['old']['document_root'].'/'.$log_folder.'    none    bind';
			$app->system->removeLine('/etc/fstab', $fstab_line);
		}
		unset($log_folders);

		if($data['old']['type'] != 'vhost' && $data['old']['type'] != 'vhostsubdomain' && $data['old']['type'] != 'vhostalias' && $data['old']['parent_domain_id'] > 0) {
			//* This is a alias domain or subdomain, so we have to update the website instead
			$parent_domain_id = intval($data['old']['parent_domain_id']);
			$tmp = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ? AND active = 'y'", $parent_domain_id);
			$data['new'] = $tmp;
			$data['old'] = $tmp;
			$this->action = 'update';
			$this->update_letsencrypt = true;
			// just run the update function
			$this->update($event_name, $data);

		} else {
			//* This is a website
			// Deleting the vhost file, symlink and the data directory
			$vhost_file = escapeshellcmd($web_config['nginx_vhost_conf_dir'].'/'.$data['old']['domain'].'.vhost');

			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/'.$data['old']['domain'].'.vhost');
			if(is_link($vhost_symlink)){
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/900-'.$data['old']['domain'].'.vhost');
			if(is_link($vhost_symlink)){
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}
			$vhost_symlink = escapeshellcmd($web_config['nginx_vhost_conf_enabled_dir'].'/100-'.$data['old']['domain'].'.vhost');
			if(is_link($vhost_symlink)){
				$app->system->unlink($vhost_symlink);
				$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file, LOGLEVEL_DEBUG);
			}

			$app->system->unlink($vhost_file);
			$app->log('Removing vhost file: '.$vhost_file, LOGLEVEL_DEBUG);

			if($data['old']['type'] == 'vhost' || $data['old']['type'] == 'vhostsubdomain' || $data['old']['type'] == 'vhostalias') {
				$docroot = escapeshellcmd($data['old']['document_root']);
				if($docroot != '' && !stristr($docroot, '..')) {
					if($data['old']['type'] == 'vhost') {
						// this is a vhost - we delete everything in here.
						exec('rm -rf '.$docroot);
					} elseif(!stristr($data['old']['web_folder'], '..')) {
						// this is a vhost subdomain
						// IMPORTANT: do some folder checks before we delete this!
						$do_delete = true;
						$delete_folder = preg_replace('/[\/]{2,}/', '/', $web_folder); // replace / occuring multiple times
						if(substr($delete_folder, 0, 1) === '/') $delete_folder = substr($delete_folder, 1);
						if(substr($delete_folder, -1) === '/') $delete_folder = substr($delete_folder, 0, -1);

						$path_elements = explode('/', $delete_folder);

						if($path_elements[0] == 'web' || $path_elements[0] === '') {
							// paths beginning with /web should NEVER EVER be deleted, empty paths should NEVER occur - but for safety reasons we check it here!
							// we use strict check as otherwise directories named '0' may not be deleted
							$do_delete = false;
						} else {
							// read all vhost subdomains with same parent domain
							$used_paths = array();
							$tmp = $app->db->queryAllRecords("SELECT `web_folder` FROM web_domain WHERE (type = 'vhostsubdomain' OR type = 'vhostalias') AND parent_domain_id = ? AND domain_id != ?", $data['old']['parent_domain_id'], $data['old']['domain_id']);
							foreach($tmp as $tmprec) {
								// we normalize the folder entries because we need to compare them
								$tmp_folder = preg_replace('/[\/]{2,}/', '/', $tmprec['web_folder']); // replace / occuring multiple times
								if(substr($tmp_folder, 0, 1) === '/') $tmp_folder = substr($tmp_folder, 1);
								if(substr($tmp_folder, -1) === '/') $tmp_folder = substr($tmp_folder, 0, -1);

								// add this path and it's parent paths to used_paths array
								while(strpos($tmp_folder, '/') !== false) {
									if(in_array($tmp_folder, $used_paths) == false) $used_paths[] = $tmp_folder;
									$tmp_folder = substr($tmp_folder, 0, strrpos($tmp_folder, '/'));
								}
								if(in_array($tmp_folder, $used_paths) == false) $used_paths[] = $tmp_folder;
							}
							unset($tmp);

							// loop and check if the path is still used and stop at first used one
							// set do_delete to false so nothing gets deleted if the web_folder itself is still used
							$do_delete = false;
							while(count($path_elements) > 0) {
								$tmp_folder = implode('/', $path_elements);
								if(in_array($tmp_folder, $used_paths) == true) break;

								// this path is not used - set it as path to delete, strip the last element from the array and set do_delete to true
								$delete_folder = $tmp_folder;
								$do_delete = true;
								array_pop($path_elements);
							}
							unset($tmp_folder);
							unset($used_paths);
						}

						if($do_delete === true && $delete_folder !== '') exec('rm -rf '.$docroot.'/'.$delete_folder);

						unset($delete_folder);
						unset($path_elements);
					}
				}

				//remove the php fastgi starter script if available
				if ($data['old']['php'] == 'fast-cgi') {
					$this->php_fpm_pool_delete($data, $web_config);
					$fastcgi_starter_path = str_replace('[system_user]', $data['old']['system_user'], $web_config['fastcgi_starter_path']);
					if($data['old']['type'] == 'vhost') {
						if (is_dir($fastcgi_starter_path)) {
							exec('rm -rf '.$fastcgi_starter_path);
						}
					} else {
						$fcgi_starter_script = $fastcgi_starter_path.$web_config['fastcgi_starter_script'].'_web'.$data['old']['domain_id'];
						if (file_exists($fcgi_starter_script)) {
							exec('rm -f '.$fcgi_starter_script);
						}
					}
				}

				// remove PHP-FPM pool
				if ($data['old']['php'] == 'php-fpm') {
					$this->php_fpm_pool_delete($data, $web_config);
				} elseif($data['old']['php'] == 'hhvm') {
					$this->hhvm_update($data, $web_config);
					$this->php_fpm_pool_delete($data, $web_config);
				}

				//remove the php cgi starter script if available
				if ($data['old']['php'] == 'cgi') {
					// TODO: fetch the date from the server-settings
					$web_config['cgi_starter_path'] = $web_config['website_basedir'].'/php-cgi-scripts/[system_user]/';

					$cgi_starter_path = str_replace('[system_user]', $data['old']['system_user'], $web_config['cgi_starter_path']);
					if($data['old']['type'] == 'vhost') {
						if (is_dir($cgi_starter_path)) {
							exec('rm -rf '.$cgi_starter_path);
						}
					} else {
						$cgi_starter_script = $cgi_starter_path.'php-cgi-starter_web'.$data['old']['domain_id'];
						if (file_exists($cgi_starter_script)) {
							exec('rm -f '.$cgi_starter_script);
						}
					}
				}

				$app->log('Removing website: '.$docroot, LOGLEVEL_DEBUG);

				// Delete the symlinks for the sites
				$client = $app->db->queryOneRecord('SELECT client_id FROM sys_group WHERE sys_group.groupid = ?', $data['old']['sys_groupid']);
				$client_id = intval($client['client_id']);
				unset($client);
				$tmp_symlinks_array = explode(':', $web_config['website_symlinks']);
				if(is_array($tmp_symlinks_array)) {
					foreach($tmp_symlinks_array as $tmp_symlink) {
						$tmp_symlink = str_replace('[client_id]', $client_id, $tmp_symlink);
						$tmp_symlink = str_replace('[website_domain]', $data['old']['domain'], $tmp_symlink);
						// Remove trailing slash
						if(substr($tmp_symlink, -1, 1) == '/') $tmp_symlink = substr($tmp_symlink, 0, -1);
						// create the symlinks, if not exist
						if(is_link($tmp_symlink)) {
							$app->system->unlink($tmp_symlink);
							$app->log('Removing symlink: '.$tmp_symlink, LOGLEVEL_DEBUG);
						}
					}
				}
				// end removing symlinks
			} else {
				// vhost subdomain
			}

			// Delete the log file directory
			$vhost_logfile_dir = escapeshellcmd('/var/log/ispconfig/httpd/'.$data['old']['domain']);
			if($data['old']['domain'] != '' && !stristr($vhost_logfile_dir, '..')) exec('rm -rf '.$vhost_logfile_dir);
			$app->log('Removing website logfile directory: '.$vhost_logfile_dir, LOGLEVEL_DEBUG);

			if($data['old']['type'] == 'vhost') {
				//delete the web user
				$command = 'killall -u '.escapeshellcmd($data['old']['system_user']).' ; userdel';
				$command .= ' '.escapeshellcmd($data['old']['system_user']);
				exec($command);
				if($nginx_chrooted) $this->_exec('chroot '.escapeshellcmd($web_config['website_basedir']).' '.$command);

			}

			//* Remove the awstats configuration file
			if($data['old']['stats_type'] == 'awstats') {
				$this->awstats_delete($data, $web_config);
			}

			//* Delete the web-backups
			if($data['old']['type'] == 'vhost') {
				$server_config = $app->getconf->get_server_config($conf['server_id'], 'server');
				$backup_dir = $server_config['backup_dir'];
				$mount_backup = true;
				if($server_config['backup_dir'] != '' && $server_config['backup_delete'] == 'y') {
					//* mount backup directory, if necessary
					if( $server_config['backup_dir_is_mount'] == 'y' && !$app->system->mount_backup_dir($backup_dir) ) $mount_backup = false;
					if($mount_backup){
						$web_backup_dir = $backup_dir.'/web'.$data_old['domain_id'];
						//** do not use rm -rf $web_backup_dir because database(s) may exits
						exec(escapeshellcmd('rm -f '.$web_backup_dir.'/web'.$data_old['domain_id'].'_').'*');
						//* cleanup database
						$sql = "DELETE FROM web_backup WHERE server_id = ? AND parent_domain_id = ? AND filename LIKE ?";
						$app->db->query($sql, $conf['server_id'], $data_old['domain_id'], "web".$data_old['domain_id']."_%");
						if($app->db->dbHost != $app->dbmaster->dbHost) $app->dbmaster->query($sql, $conf['server_id'], $data_old['domain_id'], "web".$data_old['domain_id']."_%");

						$app->log('Deleted the web backup files', LOGLEVEL_DEBUG);
					}
				}
			}

			$app->services->restartServiceDelayed('httpd', 'reload');

		}


		if($data['old']['type'] != 'vhost') $app->system->web_folder_protection($data['old']['document_root'], true);
	}

	//* This function is called when a IP on the server is inserted, updated or deleted
	function server_ip($event_name, $data) {
		return;
	}

	//* Create or update the .htaccess folder protection
	function web_folder_user($event_name, $data) {
		global $app, $conf;

		$app->uses('system');

		if($event_name == 'web_folder_user_delete') {
			$folder_id = $data['old']['web_folder_id'];
		} else {
			$folder_id = $data['new']['web_folder_id'];
		}

		$folder = $app->db->queryOneRecord("SELECT * FROM web_folder WHERE web_folder_id = ?", $folder_id);
		$website = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ?", $folder['parent_domain_id']);

		if(!is_array($folder) or !is_array($website)) {
			$app->log('Not able to retrieve folder or website record.', LOGLEVEL_DEBUG);
			return false;
		}

		$web_folder = 'web';
		if($website['type'] == 'vhostsubdomain' || $website['type'] == 'vhostalias') $web_folder = $website['web_folder'];

		//* Get the folder path.
		if(substr($folder['path'], 0, 1) == '/') $folder['path'] = substr($folder['path'], 1);
		if(substr($folder['path'], -1) == '/') $folder['path'] = substr($folder['path'], 0, -1);
		$folder_path = escapeshellcmd($website['document_root'].'/' . $web_folder . '/'.$folder['path']);
		if(substr($folder_path, -1) != '/') $folder_path .= '/';

		//* Check if the resulting path is inside the docroot
		if(stristr($folder_path, '..') || stristr($folder_path, './') || stristr($folder_path, '\\')) {
			$app->log('Folder path "'.$folder_path.'" contains .. or ./.', LOGLEVEL_DEBUG);
			return false;
		}

		//* Create the folder path, if it does not exist
		if(!is_dir($folder_path)) {
			$app->system->mkdirpath($folder_path, 0755, $website['system_user'], $website['system_group']);
		}

		//* Create empty .htpasswd file, if it does not exist
		if(!is_file($folder_path.'.htpasswd')) {
			touch($folder_path.'.htpasswd');
			$app->system->chmod($folder_path.'.htpasswd', 0755);
			$app->system->chown($folder_path.'.htpasswd', $website['system_user']);
			$app->system->chgrp($folder_path.'.htpasswd', $website['system_group']);
			$app->log('Created file '.$folder_path.'.htpasswd', LOGLEVEL_DEBUG);
		}

		if(($data['new']['username'] != $data['old']['username'] || $data['new']['active'] == 'n') && $data['old']['username'] != '') {
			$app->system->removeLine($folder_path.'.htpasswd', $data['old']['username'].':');
			$app->log('Removed user: '.$data['old']['username'], LOGLEVEL_DEBUG);
		}

		//* Add or remove the user from .htpasswd file
		if($event_name == 'web_folder_user_delete') {
			$app->system->removeLine($folder_path.'.htpasswd', $data['old']['username'].':');
			$app->log('Removed user: '.$data['old']['username'], LOGLEVEL_DEBUG);
		} else {
			if($data['new']['active'] == 'y') {
				$app->system->replaceLine($folder_path.'.htpasswd', $data['new']['username'].':', $data['new']['username'].':'.$data['new']['password'], 0, 1);
				$app->log('Added or updated user: '.$data['new']['username'], LOGLEVEL_DEBUG);
			}
		}

		// write basic auth configuration to vhost file because nginx does not support .htaccess
		$webdata['new'] = $webdata['old'] = $website;
		$this->update('web_domain_update', $webdata);
	}

	//* Remove .htpasswd file, when folder protection is removed
	function web_folder_delete($event_name, $data) {
		global $app, $conf;

		$folder_id = $data['old']['web_folder_id'];

		$folder = $data['old'];
		$website = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ?", $folder['parent_domain_id']);

		if(!is_array($folder) or !is_array($website)) {
			$app->log('Not able to retrieve folder or website record.', LOGLEVEL_DEBUG);
			return false;
		}

		$web_folder = 'web';
		if($website['type'] == 'vhostsubdomain' || $website['type'] == 'vhostalias') $web_folder = $website['web_folder'];

		//* Get the folder path.
		if(substr($folder['path'], 0, 1) == '/') $folder['path'] = substr($folder['path'], 1);
		if(substr($folder['path'], -1) == '/') $folder['path'] = substr($folder['path'], 0, -1);
		$folder_path = realpath($website['document_root'].'/' . $web_folder . '/'.$folder['path']);
		if(substr($folder_path, -1) != '/') $folder_path .= '/';

		//* Check if the resulting path is inside the docroot
		if(substr($folder_path, 0, strlen($website['document_root'])) != $website['document_root']) {
			$app->log('Folder path is outside of docroot.', LOGLEVEL_DEBUG);
			return false;
		}

		//* Remove .htpasswd file
		if(is_file($folder_path.'.htpasswd')) {
			$app->system->unlink($folder_path.'.htpasswd');
			$app->log('Removed file '.$folder_path.'.htpasswd', LOGLEVEL_DEBUG);
		}

		// write basic auth configuration to vhost file because nginx does not support .htaccess
		$webdata['new'] = $webdata['old'] = $website;
		$this->update('web_domain_update', $webdata);
	}

	//* Update folder protection, when path has been changed
	function web_folder_update($event_name, $data) {
		global $app, $conf;

		$website = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ?", $data['new']['parent_domain_id']);

		if(!is_array($website)) {
			$app->log('Not able to retrieve folder or website record.', LOGLEVEL_DEBUG);
			return false;
		}

		$web_folder = 'web';
		if($website['type'] == 'vhostsubdomain' || $website['type'] == 'vhostalias') $web_folder = $website['web_folder'];

		//* Get the folder path.
		if(substr($data['old']['path'], 0, 1) == '/') $data['old']['path'] = substr($data['old']['path'], 1);
		if(substr($data['old']['path'], -1) == '/') $data['old']['path'] = substr($data['old']['path'], 0, -1);
		$old_folder_path = realpath($website['document_root'].'/' . $web_folder . '/'.$data['old']['path']);
		if(substr($old_folder_path, -1) != '/') $old_folder_path .= '/';

		if(substr($data['new']['path'], 0, 1) == '/') $data['new']['path'] = substr($data['new']['path'], 1);
		if(substr($data['new']['path'], -1) == '/') $data['new']['path'] = substr($data['new']['path'], 0, -1);
		$new_folder_path = escapeshellcmd($website['document_root'].'/' . $web_folder . '/'.$data['new']['path']);
		if(substr($new_folder_path, -1) != '/') $new_folder_path .= '/';

		//* Check if the resulting path is inside the docroot
		if(stristr($new_folder_path, '..') || stristr($new_folder_path, './') || stristr($new_folder_path, '\\')) {
			$app->log('Folder path "'.$new_folder_path.'" contains .. or ./.', LOGLEVEL_DEBUG);
			return false;
		}
		if(stristr($old_folder_path, '..') || stristr($old_folder_path, './') || stristr($old_folder_path, '\\')) {
			$app->log('Folder path "'.$old_folder_path.'" contains .. or ./.', LOGLEVEL_DEBUG);
			return false;
		}

		//* Check if the resulting path is inside the docroot
		if(substr($old_folder_path, 0, strlen($website['document_root'])) != $website['document_root']) {
			$app->log('Old folder path '.$old_folder_path.' is outside of docroot.', LOGLEVEL_DEBUG);
			return false;
		}
		if(substr($new_folder_path, 0, strlen($website['document_root'])) != $website['document_root']) {
			$app->log('New folder path '.$new_folder_path.' is outside of docroot.', LOGLEVEL_DEBUG);
			return false;
		}

		//* Create the folder path, if it does not exist
		if(!is_dir($new_folder_path)) $app->system->mkdirpath($new_folder_path);

		if($data['old']['path'] != $data['new']['path']) {


			//* move .htpasswd file
			if(is_file($old_folder_path.'.htpasswd')) {
				$app->system->rename($old_folder_path.'.htpasswd', $new_folder_path.'.htpasswd');
				$app->log('Moved file '.$old_folder_path.'.htpasswd to '.$new_folder_path.'.htpasswd', LOGLEVEL_DEBUG);
			}

		}

		// write basic auth configuration to vhost file because nginx does not support .htaccess
		$webdata['new'] = $webdata['old'] = $website;
		$this->update('web_domain_update', $webdata);
	}

	function _create_web_folder_auth_configuration($website){
		global $app, $conf;
		//* Create the domain.auth file which is included in the vhost configuration file
		$app->uses('getconf');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');
		$basic_auth_file = escapeshellcmd($web_config['nginx_vhost_conf_dir'].'/'.$website['domain'].'.auth');
		//$app->load('tpl');
		//$tpl = new tpl();
		//$tpl->newTemplate('nginx_http_authentication.auth.master');
		$website_auth_locations = $app->db->queryAllRecords("SELECT * FROM web_folder WHERE active = 'y' AND parent_domain_id = ?", $website['domain_id']);
		$basic_auth_locations = array();
		if(is_array($website_auth_locations) && !empty($website_auth_locations)){
			foreach($website_auth_locations as $website_auth_location){
				if(substr($website_auth_location['path'], 0, 1) == '/') $website_auth_location['path'] = substr($website_auth_location['path'], 1);
				if(substr($website_auth_location['path'], -1) == '/') $website_auth_location['path'] = substr($website_auth_location['path'], 0, -1);
				if($website_auth_location['path'] != ''){
					$website_auth_location['path'] .= '/';
				}
				$basic_auth_locations[] = array('htpasswd_location' => '/'.$website_auth_location['path'],
					'htpasswd_path' => $website['document_root'].'/' . (($website['type'] == 'vhostsubdomain' || $website['type'] == 'vhostalias') ? $website['web_folder'] : 'web') . '/'.$website_auth_location['path']);
			}
		}
		return $basic_auth_locations;
		//$tpl->setLoop('basic_auth_locations', $basic_auth_locations);
		//file_put_contents($basic_auth_file,$tpl->grab());
		//$app->log('Writing the http basic authentication file: '.$basic_auth_file,LOGLEVEL_DEBUG);
		//unset($tpl);
		//$app->services->restartServiceDelayed('httpd','reload');
	}

	//* Update the awstats configuration file
	private function awstats_update ($data, $web_config) {
		global $app;

		$web_folder = $data['new']['web_folder'];
		if($data['new']['type'] == 'vhost') $web_folder = 'web';
		$awstats_conf_dir = $web_config['awstats_conf_dir'];

		if(!is_dir($data['new']['document_root']."/" . $web_folder . "/stats/")) mkdir($data['new']['document_root']."/" . $web_folder . "/stats");
		if(!@is_file($awstats_conf_dir.'/awstats.'.$data['new']['domain'].'.conf') || ($data['old']['domain'] != '' && $data['new']['domain'] != $data['old']['domain'])) {
			if ( @is_file($awstats_conf_dir.'/awstats.'.$data['old']['domain'].'.conf') ) {
				$app->system->unlink($awstats_conf_dir.'/awstats.'.$data['old']['domain'].'.conf');
			}

			$content = '';
			if (is_file($awstats_conf_dir."/awstats.conf")) {
				$include_file = $awstats_conf_dir."/awstats.conf";
			} elseif (is_file($awstats_conf_dir."/awstats.model.conf")) {
				$include_file = $awstats_conf_dir."/awstats.model.conf";
			}
			$content .= "Include \"".$include_file."\"\n";
			$content .= "LogFile=\"/var/log/ispconfig/httpd/".$data['new']['domain']."/access.log\"\n";
			$content .= "SiteDomain=\"".$data['new']['domain']."\"\n";
			$content .= "HostAliases=\"www.".$data['new']['domain']."  localhost 127.0.0.1\"\n";

			if (isset($include_file)) {
				$app->system->file_put_contents($awstats_conf_dir.'/awstats.'.$data['new']['domain'].'.conf', $content);
				$app->log('Created AWStats config file: '.$awstats_conf_dir.'/awstats.'.$data['new']['domain'].'.conf', LOGLEVEL_DEBUG);
			} else {
				$app->log("No awstats base config found. Either awstats.conf or awstats.model.conf must exist in ".$awstats_conf_dir.".", LOGLEVEL_WARN);
			}
		}

		if(is_file($data['new']['document_root']."/" . $web_folder . "/stats/index.html")) $app->system->unlink($data['new']['document_root']."/" . $web_folder . "/stats/index.html");
		if(file_exists("/usr/local/ispconfig/server/conf-custom/awstats_index.php.master")) {
			$app->system->copy("/usr/local/ispconfig/server/conf-custom/awstats_index.php.master", $data['new']['document_root']."/" . $web_folder . "/stats/index.php");
		} else {
			$app->system->copy("/usr/local/ispconfig/server/conf/awstats_index.php.master", $data['new']['document_root']."/" . $web_folder . "/stats/index.php");
		}
	}

	//* Delete the awstats configuration file
	private function awstats_delete ($data, $web_config) {
		global $app;

		$awstats_conf_dir = $web_config['awstats_conf_dir'];

		if ( @is_file($awstats_conf_dir.'/awstats.'.$data['old']['domain'].'.conf') ) {
			$app->system->unlink($awstats_conf_dir.'/awstats.'.$data['old']['domain'].'.conf');
			$app->log('Removed AWStats config file: '.$awstats_conf_dir.'/awstats.'.$data['old']['domain'].'.conf', LOGLEVEL_DEBUG);
		}
	}

	private function hhvm_update($data, $web_config) {
		global $app, $conf;
		
		if(file_exists($conf['rootpath'] . '/conf-custom/hhvm_starter.master')) {
			$content = file_get_contents($conf['rootpath'] . '/conf-custom/hhvm_starter.master');
		} else {
			$content = file_get_contents($conf['rootpath'] . '/conf/hhvm_starter.master');
		}
		if(file_exists($conf['rootpath'] . '/conf-custom/hhvm_monit.master')) {
			$monit_content = file_get_contents($conf['rootpath'] . '/conf-custom/hhvm_monit.master');
		} else {
			$monit_content = file_get_contents($conf['rootpath'] . '/conf/hhvm_monit.master');
		}
		
		if($data['new']['php'] == 'hhvm' && $data['old']['php'] != 'hhvm' || (isset($data['old']['custom_php_ini']) && isset($data['new']['custom_php_ini']) && $data['new']['custom_php_ini'] != $data['old']['custom_php_ini'])) {

			// Custom php.ini settings
			$custom_php_ini_settings = trim($data['new']['custom_php_ini']);
			if(intval($data['new']['directive_snippets_id']) > 0){
				$snippet = $app->db->queryOneRecord("SELECT * FROM directive_snippets WHERE directive_snippets_id = ? AND type = 'nginx' AND active = 'y' AND customer_viewable = 'y'", intval($data['new']['directive_snippets_id']));
				if(isset($snippet['required_php_snippets']) && trim($snippet['required_php_snippets']) != ''){
					$required_php_snippets = explode(',', trim($snippet['required_php_snippets']));
					if(is_array($required_php_snippets) && !empty($required_php_snippets)){
						foreach($required_php_snippets as $required_php_snippet){
							$required_php_snippet = intval($required_php_snippet);
							if($required_php_snippet > 0){
								$php_snippet = $app->db->queryOneRecord("SELECT * FROM directive_snippets WHERE ".($snippet['master_directive_snippets_id'] > 0 ? 'master_' : '')."directive_snippets_id = ? AND type = 'php' AND active = 'y'", $required_php_snippet);
								$php_snippet['snippet'] = trim($php_snippet['snippet']);
								if($php_snippet['snippet'] != ''){
									$custom_php_ini_settings .= "\n".$php_snippet['snippet'];
								}
							}
						}
					}
				}
			}
			
			if($custom_php_ini_settings != ''){
				// Make sure we only have Unix linebreaks
				$custom_php_ini_settings = str_replace("\r\n", "\n", $custom_php_ini_settings);
				$custom_php_ini_settings = str_replace("\r", "\n", $custom_php_ini_settings);
				file_put_contents('/etc/hhvm/'.$data['new']['system_user'].'.ini', $custom_php_ini_settings);
			} else {
				if($data['old']['system_user'] != '' && is_file('/etc/hhvm/'.$data['old']['system_user'].'.ini')) unlink('/etc/hhvm/'.$data['old']['system_user'].'.ini');
			}
		
			$content = str_replace('{SYSTEM_USER}', $data['new']['system_user'], $content);
			file_put_contents('/etc/init.d/hhvm_' . $data['new']['system_user'], $content);
			exec('chmod +x /etc/init.d/hhvm_' . $data['new']['system_user'] . ' >/dev/null 2>&1');
			exec('/usr/sbin/update-rc.d hhvm_' . $data['new']['system_user'] . ' defaults >/dev/null 2>&1');
			exec('/etc/init.d/hhvm_' . $data['new']['system_user'] . ' restart >/dev/null 2>&1');
			
			if(is_dir('/etc/monit/conf.d')){
				$monit_content = str_replace('{SYSTEM_USER}', $data['new']['system_user'], $monit_content);
				file_put_contents('/etc/monit/conf.d/00-hhvm_' . $data['new']['system_user'], $monit_content);
				if(is_file('/etc/monit/conf.d/hhvm_' . $data['new']['system_user'])) unlink('/etc/monit/conf.d/hhvm_' . $data['new']['system_user']);
				exec('/etc/init.d/monit restart >/dev/null 2>&1');
			}
			
 		} elseif($data['new']['php'] != 'hhvm' && $data['old']['php'] == 'hhvm') {
			if($data['old']['system_user'] != ''){
				exec('/etc/init.d/hhvm_' . $data['old']['system_user'] . ' stop >/dev/null 2>&1');
				exec('/usr/sbin/update-rc.d hhvm_' . $data['old']['system_user'] . ' remove >/dev/null 2>&1');
				unlink('/etc/init.d/hhvm_' . $data['old']['system_user']);
				if(is_file('/etc/hhvm/'.$data['old']['system_user'].'.ini')) unlink('/etc/hhvm/'.$data['old']['system_user'].'.ini');
			}
			
			if(is_file('/etc/monit/conf.d/hhvm_' . $data['old']['system_user']) || is_file('/etc/monit/conf.d/00-hhvm_' . $data['old']['system_user'])){
				if(is_file('/etc/monit/conf.d/hhvm_' . $data['old']['system_user'])){
					unlink('/etc/monit/conf.d/hhvm_' . $data['old']['system_user']);
				}
				if(is_file('/etc/monit/conf.d/00-hhvm_' . $data['old']['system_user'])){
					unlink('/etc/monit/conf.d/00-hhvm_' . $data['old']['system_user']);
				}
				exec('/etc/init.d/monit restart >/dev/null 2>&1');
			}
		}
	}

	//* Update the PHP-FPM pool configuration file
	private function php_fpm_pool_update ($data, $web_config, $pool_dir, $pool_name, $socket_dir) {
		global $app, $conf;
		$pool_dir = trim($pool_dir);
		/*
		if(trim($data['new']['fastcgi_php_version']) != ''){
			$default_php_fpm = false;
			list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['new']['fastcgi_php_version']));
			if(substr($custom_php_fpm_ini_dir,-1) != '/') $custom_php_fpm_ini_dir .= '/';
		} else {
			$default_php_fpm = true;
		}
		*/
		// HHVM => PHP-FPM-Fallback
		if($data['new']['php'] == 'php-fpm' || $data['new']['php'] == 'hhvm'){
			if(trim($data['new']['fastcgi_php_version']) != ''){
				$default_php_fpm = false;
				list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['new']['fastcgi_php_version']));
				if(substr($custom_php_fpm_ini_dir, -1) != '/') $custom_php_fpm_ini_dir .= '/';
			} else {
				$default_php_fpm = true;
			}
		} else {
			if(trim($data['old']['fastcgi_php_version']) != '' && $data['old']['php'] != 'no'){
				$default_php_fpm = false;
				list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['old']['fastcgi_php_version']));
				if(substr($custom_php_fpm_ini_dir, -1) != '/') $custom_php_fpm_ini_dir .= '/';
			} else {
				$default_php_fpm = true;
			}
		}

		$app->uses("getconf");
		$web_config = $app->getconf->get_server_config($conf["server_id"], 'web');

		// HHVM => PHP-FPM-Fallback
		if($data['new']['php'] != 'php-fpm' && $data['new']['php'] != 'hhvm'){
			if(@is_file($pool_dir.$pool_name.'.conf')){
				$app->system->unlink($pool_dir.$pool_name.'.conf');
				//$reload = true;
			}
			if($data['old']['php'] != 'no'){
				if(!$default_php_fpm){
					$app->services->restartService('php-fpm', 'reload:'.$custom_php_fpm_init_script);
				} else {
					$app->services->restartService('php-fpm', 'reload:'.$conf['init_scripts'].'/'.$web_config['php_fpm_init_script']);
				}
			}
			return;
		}

		$app->load('tpl');
		$tpl = new tpl();
		$tpl->newTemplate('php_fpm_pool.conf.master');

		if($data['new']['php_fpm_use_socket'] == 'y'){
			$use_tcp = 0;
			$use_socket = 1;
			if(!is_dir($socket_dir)) $app->system->mkdirpath($socket_dir);
		} else {
			$use_tcp = 1;
			$use_socket = 0;
		}
		$tpl->setVar('use_tcp', $use_tcp);
		$tpl->setVar('use_socket', $use_socket);

		$fpm_socket = $socket_dir.$pool_name.'.sock';
		$tpl->setVar('fpm_socket', $fpm_socket);
		$tpl->setVar('fpm_listen_mode', '0660');

		$tpl->setVar('fpm_pool', $pool_name);
		$tpl->setVar('fpm_port', $web_config['php_fpm_start_port'] + $data['new']['domain_id'] - 1);
		$tpl->setVar('fpm_user', $data['new']['system_user']);
		$tpl->setVar('fpm_group', $web_config['group']);
		$tpl->setVar('pm', $data['new']['pm']);
		$tpl->setVar('pm_max_children', $data['new']['pm_max_children']);
		$tpl->setVar('pm_start_servers', $data['new']['pm_start_servers']);
		$tpl->setVar('pm_min_spare_servers', $data['new']['pm_min_spare_servers']);
		$tpl->setVar('pm_max_spare_servers', $data['new']['pm_max_spare_servers']);
		$tpl->setVar('pm_process_idle_timeout', $data['new']['pm_process_idle_timeout']);
		$tpl->setVar('pm_max_requests', $data['new']['pm_max_requests']);
		$tpl->setVar('document_root', $data['new']['document_root']);
		$tpl->setVar('security_level', $web_config['security_level']);
		$tpl->setVar('domain', $data['new']['domain']);
		$php_open_basedir = ($data['new']['php_open_basedir'] == '')?escapeshellcmd($data['new']['document_root']):escapeshellcmd($data['new']['php_open_basedir']);
		$tpl->setVar('php_open_basedir', $php_open_basedir);
		if($php_open_basedir != ''){
			$tpl->setVar('enable_php_open_basedir', '');
		} else {
			$tpl->setVar('enable_php_open_basedir', ';');
		}

		// Custom php.ini settings
		$final_php_ini_settings = array();
		$custom_php_ini_settings = trim($data['new']['custom_php_ini']);
		
		if(intval($data['new']['directive_snippets_id']) > 0){
			$snippet = $app->db->queryOneRecord("SELECT * FROM directive_snippets WHERE directive_snippets_id = ? AND type = 'nginx' AND active = 'y' AND customer_viewable = 'y'", intval($data['new']['directive_snippets_id']));
			if(isset($snippet['required_php_snippets']) && trim($snippet['required_php_snippets']) != ''){
				$required_php_snippets = explode(',', trim($snippet['required_php_snippets']));
				if(is_array($required_php_snippets) && !empty($required_php_snippets)){
					foreach($required_php_snippets as $required_php_snippet){
						$required_php_snippet = intval($required_php_snippet);
						if($required_php_snippet > 0){
							$php_snippet = $app->db->queryOneRecord("SELECT * FROM directive_snippets WHERE ".($snippet['master_directive_snippets_id'] > 0 ? 'master_' : '')."directive_snippets_id = ? AND type = 'php' AND active = 'y'", $required_php_snippet);
							$php_snippet['snippet'] = trim($php_snippet['snippet']);
							if($php_snippet['snippet'] != ''){
								$custom_php_ini_settings .= "\n".$php_snippet['snippet'];
							}
						}
					}
				}
			}
		}
		
		$custom_session_save_path = false;
		if($custom_php_ini_settings != ''){
			// Make sure we only have Unix linebreaks
			$custom_php_ini_settings = str_replace("\r\n", "\n", $custom_php_ini_settings);
			$custom_php_ini_settings = str_replace("\r", "\n", $custom_php_ini_settings);
			$ini_settings = explode("\n", $custom_php_ini_settings);
			if(is_array($ini_settings) && !empty($ini_settings)){
				foreach($ini_settings as $ini_setting){
					$ini_setting = trim($ini_setting);
					if(substr($ini_setting, 0, 1) == ';') continue;
					if(substr($ini_setting, 0, 1) == '#') continue;
					if(substr($ini_setting, 0, 2) == '//') continue;
					list($key, $value) = explode('=', $ini_setting, 2);
					$value = trim($value);
					if($value != ''){
						$key = trim($key);
						if($key == 'session.save_path') $custom_session_save_path = true;
						switch (strtolower($value)) {
						case '0':
							// PHP-FPM might complain about invalid boolean value if you use 0
							$value = 'off';
						case '1':
						case 'on':
						case 'off':
						case 'true':
						case 'false':
						case 'yes':
						case 'no':
							$final_php_ini_settings[] = array('ini_setting' => 'php_admin_flag['.$key.'] = '.$value);
							break;
						default:
							$final_php_ini_settings[] = array('ini_setting' => 'php_admin_value['.$key.'] = '.$value);
						}
					}
				}
			}
		}

		$tpl->setVar('custom_session_save_path', ($custom_session_save_path ? 'y' : 'n'));

		$tpl->setLoop('custom_php_ini_settings', $final_php_ini_settings);

		$app->system->file_put_contents($pool_dir.$pool_name.'.conf', $tpl->grab());
		$app->log('Writing the PHP-FPM config file: '.$pool_dir.$pool_name.'.conf', LOGLEVEL_DEBUG);
		unset($tpl);

		// delete pool in all other PHP versions
		$default_pool_dir = trim(escapeshellcmd($web_config['php_fpm_pool_dir']));
		if(substr($default_pool_dir, -1) != '/') $default_pool_dir .= '/';
		if($default_pool_dir != $pool_dir){
			if ( @is_file($default_pool_dir.$pool_name.'.conf') ) {
				$app->system->unlink($default_pool_dir.$pool_name.'.conf');
				$app->log('Removed PHP-FPM config file: '.$default_pool_dir.$pool_name.'.conf', LOGLEVEL_DEBUG);
				$app->services->restartService('php-fpm', 'reload:'.$conf['init_scripts'].'/'.$web_config['php_fpm_init_script']);
			}
		}
		$php_versions = $app->db->queryAllRecords("SELECT * FROM server_php WHERE php_fpm_init_script != '' AND php_fpm_ini_dir != '' AND php_fpm_pool_dir != '' AND server_id = ?", $conf["server_id"]);
		if(is_array($php_versions) && !empty($php_versions)){
			foreach($php_versions as $php_version){
				$php_version['php_fpm_pool_dir'] = trim($php_version['php_fpm_pool_dir']);
				if(substr($php_version['php_fpm_pool_dir'], -1) != '/') $php_version['php_fpm_pool_dir'] .= '/';
				if($php_version['php_fpm_pool_dir'] != $pool_dir){
					if ( @is_file($php_version['php_fpm_pool_dir'].$pool_name.'.conf') ) {
						$app->system->unlink($php_version['php_fpm_pool_dir'].$pool_name.'.conf');
						$app->log('Removed PHP-FPM config file: '.$php_version['php_fpm_pool_dir'].$pool_name.'.conf', LOGLEVEL_DEBUG);
						$app->services->restartService('php-fpm', 'reload:'.$php_version['php_fpm_init_script']);
					}
				}
			}
		}
		// Reload current PHP-FPM after all others
		sleep(1);
		if(!$default_php_fpm){
			$app->services->restartService('php-fpm', 'reload:'.$custom_php_fpm_init_script);
		} else {
			$app->services->restartService('php-fpm', 'reload:'.$conf['init_scripts'].'/'.$web_config['php_fpm_init_script']);
		}
	}

	//* Delete the PHP-FPM pool configuration file
	private function php_fpm_pool_delete ($data, $web_config) {
		global $app, $conf;

		if(trim($data['old']['fastcgi_php_version']) != '' && $data['old']['php'] != 'no'){
			$default_php_fpm = false;
			list($custom_php_fpm_name, $custom_php_fpm_init_script, $custom_php_fpm_ini_dir, $custom_php_fpm_pool_dir) = explode(':', trim($data['old']['fastcgi_php_version']));
			if(substr($custom_php_fpm_ini_dir, -1) != '/') $custom_php_fpm_ini_dir .= '/';
		} else {
			$default_php_fpm = true;
		}

		if($default_php_fpm){
			$pool_dir = escapeshellcmd($web_config['php_fpm_pool_dir']);
		} else {
			$pool_dir = $custom_php_fpm_pool_dir;
		}
		$pool_dir = trim($pool_dir);

		if(substr($pool_dir, -1) != '/') $pool_dir .= '/';
		$pool_name = 'web'.$data['old']['domain_id'];

		if ( @is_file($pool_dir.$pool_name.'.conf') ) {
			$app->system->unlink($pool_dir.$pool_name.'.conf');
			$app->log('Removed PHP-FPM config file: '.$pool_dir.$pool_name.'.conf', LOGLEVEL_DEBUG);
		}

		// delete pool in all other PHP versions
		$default_pool_dir = trim(escapeshellcmd($web_config['php_fpm_pool_dir']));
		if(substr($default_pool_dir, -1) != '/') $default_pool_dir .= '/';
		if($default_pool_dir != $pool_dir){
			if ( @is_file($default_pool_dir.$pool_name.'.conf') ) {
				$app->system->unlink($default_pool_dir.$pool_name.'.conf');
				$app->log('Removed PHP-FPM config file: '.$default_pool_dir.$pool_name.'.conf', LOGLEVEL_DEBUG);
				$app->services->restartService('php-fpm', 'reload:'.$conf['init_scripts'].'/'.$web_config['php_fpm_init_script']);
			}
		}
		$php_versions = $app->db->queryAllRecords("SELECT * FROM server_php WHERE php_fpm_init_script != '' AND php_fpm_ini_dir != '' AND php_fpm_pool_dir != '' AND server_id = ?", $data['old']['server_id']);
		if(is_array($php_versions) && !empty($php_versions)){
			foreach($php_versions as $php_version){
				$php_version['php_fpm_pool_dir'] = trim($php_version['php_fpm_pool_dir']);
				if(substr($php_version['php_fpm_pool_dir'], -1) != '/') $php_version['php_fpm_pool_dir'] .= '/';
				if($php_version['php_fpm_pool_dir'] != $pool_dir){
					if ( @is_file($php_version['php_fpm_pool_dir'].$pool_name.'.conf') ) {
						$app->system->unlink($php_version['php_fpm_pool_dir'].$pool_name.'.conf');
						$app->log('Removed PHP-FPM config file: '.$php_version['php_fpm_pool_dir'].$pool_name.'.conf', LOGLEVEL_DEBUG);
						$app->services->restartService('php-fpm', 'reload:'.$php_version['php_fpm_init_script']);
					}
				}
			}
		}

		// Reload current PHP-FPM after all others
		sleep(1);
		if(!$default_php_fpm){
			$app->services->restartService('php-fpm', 'reload:'.$custom_php_fpm_init_script);
		} else {
			$app->services->restartService('php-fpm', 'reload:'.$conf['init_scripts'].'/'.$web_config['php_fpm_init_script']);
		}
	}

	private function nginx_replace($matches){
		$location = 'location'.($matches[1] != '' ? ' '.$matches[1] : '').' '.$matches[2].' '.$matches[3];
		if($matches[4] == '##merge##' || $matches[7] == '##merge##') $location .= ' ##merge##';
		if($matches[4] == '##delete##' || $matches[7] == '##delete##') $location .= ' ##delete##';
		$location .= "\n";
		$location .= $matches[5]."\n";
		$location .= $matches[6];
		return $location;
	}

	private function nginx_merge_locations($vhost_conf){

		$lines = explode("\n", $vhost_conf);

		// if whole location block is in one line, split it up into multiple lines
		if(is_array($lines) && !empty($lines)){
			$linecount = sizeof($lines);
			for($h=0;$h<$linecount;$h++){
				// remove comments
				if(substr(trim($lines[$h]), 0, 1) == '#'){
					unset($lines[$h]);
					continue;
				}

				$lines[$h] = rtrim($lines[$h]);
				/*
				if(substr(ltrim($lines[$h]), 0, 8) == 'location' && strpos($lines[$h], '{') !== false && strpos($lines[$h], ';') !== false){
					$lines[$h] = str_replace("{", "{\n", $lines[$h]);
					$lines[$h] = str_replace(";", ";\n", $lines[$h]);
					if(strpos($lines[$h], '##merge##') !== false){
						$lines[$h] = str_replace('##merge##', '', $lines[$h]);
						$lines[$h] = substr($lines[$h],0,strpos($lines[$h], '{')).' ##merge##'.substr($lines[$h],strpos($lines[$h], '{')+1);
					}
				}
				if(substr(ltrim($lines[$h]), 0, 8) == 'location' && strpos($lines[$h], '{') !== false && strpos($lines[$h], '}') !== false && strpos($lines[$h], ';') === false){
					$lines[$h] = str_replace("{", "{\n", $lines[$h]);
					if(strpos($lines[$h], '##merge##') !== false){
						$lines[$h] = str_replace('##merge##', '', $lines[$h]);
						$lines[$h] = substr($lines[$h],0,strpos($lines[$h], '{')).' ##merge##'.substr($lines[$h],strpos($lines[$h], '{')+1);
					}
				}
				*/
				$pattern = '/^[^\S\n]*location[^\S\n]+(?:(.+)[^\S\n]+)?(.+)[^\S\n]*(\{)[^\S\n]*(##merge##|##delete##)?[^\S\n]*(.+)[^\S\n]*(\})[^\S\n]*(##merge##|##delete##)?[^\S\n]*$/';
				$lines[$h] = preg_replace_callback($pattern, array($this, 'nginx_replace') , $lines[$h]);
			}
		}
		$vhost_conf = implode("\n", $lines);
		unset($lines);
		unset($linecount);

		$lines = explode("\n", $vhost_conf);

		if(is_array($lines) && !empty($lines)){
			$locations = array();
			$locations_to_delete = array();
			$islocation = false;
			$linecount = sizeof($lines);
			$server_count = 0;

			for($i=0;$i<$linecount;$i++){
				$l = trim($lines[$i]);
				if(substr($l, 0, 8) == 'server {') $server_count += 1;
				if($server_count > 1) break;
				if(substr($l, 0, 8) == 'location' && !$islocation){

					$islocation = true;
					$level = 0;

					// Remove unnecessary whitespace
					$l = preg_replace('/\s\s+/', ' ', $l);

					$loc_parts = explode(' ', $l);
					// see http://wiki.nginx.org/HttpCoreModule#location
					if($loc_parts[1] == '=' || $loc_parts[1] == '~' || $loc_parts[1] == '~*' || $loc_parts[1] == '^~'){
						$location = $loc_parts[1].' '.$loc_parts[2];
					} else {
						$location = $loc_parts[1];
					}
					unset($loc_parts);

					if(!isset($locations[$location]['action'])) $locations[$location]['action'] = 'replace';
					if(substr($l, -9) == '##merge##') $locations[$location]['action'] = 'merge';
					if(substr($l, -10) == '##delete##') $locations[$location]['action'] = 'delete';

					if(!isset($locations[$location]['open_tag'])) $locations[$location]['open_tag'] = '        location '.$location.' {';
					if(!isset($locations[$location]['location']) || $locations[$location]['action'] == 'replace') $locations[$location]['location'] = '';
					if($locations[$location]['action'] == 'delete') $locations_to_delete[] = $location;
					if(!isset($locations[$location]['end_tag'])) $locations[$location]['end_tag'] = '        }';
					if(!isset($locations[$location]['start_line'])) $locations[$location]['start_line'] = $i;

					unset($lines[$i]);

				} else {

					if($islocation){
						$openingbracketpos = strrpos($l, '{');
						if($openingbracketpos !== false){
							$level += 1;
						}
						$closingbracketpos = strrpos($l, '}');
						if($closingbracketpos !== false && $level > 0 && $closingbracketpos >= intval($openingbracketpos)){
							$level -= 1;
							$locations[$location]['location'] .= $lines[$i]."\n";
						} elseif($closingbracketpos !== false && $level == 0 && $closingbracketpos >= intval($openingbracketpos)){
							$islocation = false;
						} else {
							$locations[$location]['location'] .= $lines[$i]."\n";
						}
						unset($lines[$i]);
					}

				}
			}

			if(is_array($locations) && !empty($locations)){
				if(is_array($locations_to_delete) && !empty($locations_to_delete)){
					foreach($locations_to_delete as $location_to_delete){
						if(isset($locations[$location_to_delete])) unset($locations[$location_to_delete]);
					}
				}

				foreach($locations as $key => $val){
					$new_location = $val['open_tag']."\n".$val['location'].$val['end_tag'];
					$lines[$val['start_line']] = $new_location;
				}
			}
			ksort($lines);
			$vhost_conf = implode("\n", $lines);
		}

		return trim($vhost_conf);
	}

	function client_delete($event_name, $data) {
		global $app, $conf;

		$app->uses("getconf");
		$web_config = $app->getconf->get_server_config($conf["server_id"], 'web');

		$client_id = intval($data['old']['client_id']);
		if($client_id > 0) {

			$client_dir = $web_config['website_basedir'].'/clients/client'.$client_id;
			if(is_dir($client_dir) && !stristr($client_dir, '..')) {
				// remove symlinks from $client_dir
				$files = array_diff(scandir($client_dir), array('.', '..'));
				if(is_array($files) && !empty($files)){
					foreach($files as $file){
						if(is_link($client_dir.'/'.$file)){
							unlink($client_dir.'/'.$file);
							$app->log('Removed symlink: '.$client_dir.'/'.$file, LOGLEVEL_DEBUG);
						}
					}
				}

				@rmdir($client_dir);
				$app->log('Removed client directory: '.$client_dir, LOGLEVEL_DEBUG);
			}

			if($app->system->is_group('client'.$client_id)){
				$this->_exec('groupdel client'.$client_id);
				$app->log('Removed group client'.$client_id, LOGLEVEL_DEBUG);
			}
		}

	}

	//* Wrapper for exec function for easier debugging
	private function _exec($command) {
		global $app;
		$out = array();
		$ret = 0;
		$app->log('exec: '.$command, LOGLEVEL_DEBUG);
		exec($command, $out, $ret);
		if($ret != 0) return false;
		else return true;
	}

	private function _checkTcp ($host, $port) {

		$fp = @fsockopen($host, $port, $errno, $errstr, 2);

		if ($fp) {
			fclose($fp);
			return true;
		} else {
			return false;
		}
	}

	public function create_relative_link($f, $t) {
		global $app;
		// $from already exists
		$from = realpath($f);

		// realpath requires the traced file to exist - so, lets touch it first, then remove
		@$app->system->unlink($t); touch($t);
		$to = realpath($t);
		@$app->system->unlink($t);

		// Remove from the left side matching path elements from $from and $to
		// and get path elements counts
		$a1 = explode('/', $from); $a2 = explode('/', $to);
		for ($c = 0; $a1[$c] == $a2[$c]; $c++) {
			unset($a1[$c]); unset($a2[$c]);
		}
		$cfrom = implode('/', $a1);

		// Check if a path is fully a subpath of another - no way to create symlink in the case
		if (count($a1) == 0 || count($a2) == 0) return false;

		// Add ($cnt_to-1) number of "../" elements to left side of $cfrom
		for ($c = 0; $c < (count($a2)-1); $c++) { $cfrom = '../'.$cfrom; }

		return symlink($cfrom, $to);
	}

	private function _rewrite_quote($string) {
		return str_replace(array('.', '*', '?', '+'), array('\\.', '\\*', '\\?', '\\+'), $string);
	}

	private function url_is_local($hostname, $domain_id){
		global $app;

		// ORDER BY clause makes sure wildcard subdomains (*) are listed last in the result array so that we can find direct matches first
		$webs = $app->db->queryAllRecords("SELECT * FROM web_domain WHERE active = 'y' ORDER BY subdomain ASC");
		if(is_array($webs) && !empty($webs)){
			foreach($webs as $web){
				// web domain doesn't match hostname
				if(substr($hostname, -strlen($web['domain'])) != $web['domain']) continue;
				// own vhost and therefore server {} container of its own
				//if($web['type'] == 'vhostsubdomain' || $web['type'] == 'vhostalias') continue;
				// alias domains/subdomains using rewrites and therefore a server {} container of their own
				//if(($web['type'] == 'alias' || $web['type'] == 'subdomain') && $web['redirect_type'] != '' && $web['redirect_path'] != '') continue;

				if($web['subdomain'] == '*'){
					$pattern = '/\.?'.str_replace('.', '\.', $web['domain']).'$/i';
				}
				if($web['subdomain'] == 'none'){
					if($web['domain'] == $hostname){
						if($web['domain_id'] == $domain_id || $web['parent_domain_id'] == $domain_id){
							// own vhost and therefore server {} container of its own
							if($web['type'] == 'vhostsubdomain' || $web['type'] == 'vhostalias') return false;
							// alias domains/subdomains using rewrites and therefore a server {} container of their own
							if(($web['type'] == 'alias' || $web['type'] == 'subdomain') && $web['redirect_type'] != '' && $web['redirect_path'] != '') return false;
							return true;
						} else {
							return false;
						}
					}
					$pattern = '/^'.str_replace('.', '\.', $web['domain']).'$/i';
				}
				if($web['subdomain'] == 'www'){
					if($web['domain'] == $hostname || $web['subdomain'].'.'.$web['domain'] == $hostname){
						if($web['domain_id'] == $domain_id || $web['parent_domain_id'] == $domain_id){
							// own vhost and therefore server {} container of its own
							if($web['type'] == 'vhostsubdomain' || $web['type'] == 'vhostalias') return false;
							// alias domains/subdomains using rewrites and therefore a server {} container of their own
							if(($web['type'] == 'alias' || $web['type'] == 'subdomain') && $web['redirect_type'] != '' && $web['redirect_path'] != '') return false;
							return true;
						} else {
							return false;
						}
					}
					$pattern = '/^(www\.)?'.str_replace('.', '\.', $web['domain']).'$/i';
				}
				if(preg_match($pattern, $hostname)){
					if($web['domain_id'] == $domain_id || $web['parent_domain_id'] == $domain_id){
						// own vhost and therefore server {} container of its own
						if($web['type'] == 'vhostsubdomain' || $web['type'] == 'vhostalias') return false;
						// alias domains/subdomains using rewrites and therefore a server {} container of their own
						if(($web['type'] == 'alias' || $web['type'] == 'subdomain') && $web['redirect_type'] != '' && $web['redirect_path'] != '') return false;
						return true;
					} else {
						return false;
					}
				}
			}
		}

		return false;
	}

	private function get_seo_redirects($web, $prefix = '', $force_subdomain = false){
		// $force_subdomain = 'none|www'
		$seo_redirects = array();

		if(substr($web['domain'], 0, 2) === '*.') $web['subdomain'] = '*';

		if(($web['subdomain'] == 'www' || $web['subdomain'] == '*') && $force_subdomain != 'www'){
			if($web['seo_redirect'] == 'non_www_to_www'){
				$seo_redirects[$prefix.'seo_redirect_origin_domain'] = $web['domain'];
				$seo_redirects[$prefix.'seo_redirect_target_domain'] = 'www.'.$web['domain'];
				$seo_redirects[$prefix.'seo_redirect_operator'] = '=';
			}
			if($web['seo_redirect'] == '*_domain_tld_to_www_domain_tld'){
				// ^(example\.com|(?!\bwww\b)\.example\.com)$
				// ^(example\.com|((?:\w+(?:-\w+)*\.)*)((?!www\.)\w+(?:-\w+)*)(\.example\.com))$
				$seo_redirects[$prefix.'seo_redirect_origin_domain'] = '^('.str_replace('.', '\.', $web['domain']).'|((?:\w+(?:-\w+)*\.)*)((?!www\.)\w+(?:-\w+)*)(\.'.str_replace('.', '\.', $web['domain']).'))$';
				$seo_redirects[$prefix.'seo_redirect_target_domain'] = 'www.'.$web['domain'];
				$seo_redirects[$prefix.'seo_redirect_operator'] = '~*';
			}
			if($web['seo_redirect'] == '*_to_www_domain_tld'){
				$seo_redirects[$prefix.'seo_redirect_origin_domain'] = 'www.'.$web['domain'];
				$seo_redirects[$prefix.'seo_redirect_target_domain'] = 'www.'.$web['domain'];
				$seo_redirects[$prefix.'seo_redirect_operator'] = '!=';
			}
		}
		if($force_subdomain != 'none'){
			if($web['seo_redirect'] == 'www_to_non_www'){
				$seo_redirects[$prefix.'seo_redirect_origin_domain'] = 'www.'.$web['domain'];
				$seo_redirects[$prefix.'seo_redirect_target_domain'] = $web['domain'];
				$seo_redirects[$prefix.'seo_redirect_operator'] = '=';
			}
			if($web['seo_redirect'] == '*_domain_tld_to_domain_tld'){
				// ^(.+)\.example\.com$
				$seo_redirects[$prefix.'seo_redirect_origin_domain'] = '^(.+)\.'.str_replace('.', '\.', $web['domain']).'$';
				$seo_redirects[$prefix.'seo_redirect_target_domain'] = $web['domain'];
				$seo_redirects[$prefix.'seo_redirect_operator'] = '~*';
			}
			if($web['seo_redirect'] == '*_to_domain_tld'){
				$seo_redirects[$prefix.'seo_redirect_origin_domain'] = $web['domain'];
				$seo_redirects[$prefix.'seo_redirect_target_domain'] = $web['domain'];
				$seo_redirects[$prefix.'seo_redirect_operator'] = '!=';
			}
		}
		return $seo_redirects;
	}

} // end class

?>