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		//* Create .htaccess and .htpasswd file for website statistics
		if(!is_file($data['new']['document_root'].'/web/stats/.htaccess') or $data['old']['document_root'] != $data['new']['document_root']) {
			if(!is_dir($data['new']['document_root'].'/web/stats')) mkdir($data['new']['document_root'].'/web/stats');
			$ht_file = "AuthType Basic\nAuthName \"Members Only\"\nAuthUserFile ".$data['new']['document_root']."/.htpasswd_stats\nrequire valid-user";
			file_put_contents($data['new']['document_root'].'/web/stats/.htaccess',$ht_file);
			chmod($data['new']['document_root'].'/web/stats/.htaccess',0755);
		if(!is_file($data['new']['document_root'].'/.htpasswd_stats') || $data['new']['stats_password'] != $data['old']['stats_password']) {
			if(trim($data['new']['stats_password']) != '') {
				$htp_file = 'admin:'.trim($data['new']['stats_password']);
				file_put_contents($data['new']['document_root'].'/.htpasswd_stats',$htp_file);
				chmod($data['new']['document_root'].'/.htpasswd_stats',0755);
		
		//* Create awstats configuration
		if($data['new']['stats_type'] == 'awstats' && $data['new']['type'] == 'vhost') {
			$this->awstats_update($data,$web_config);
		}
		
		if($web_config['check_apache_config'] == 'y') {
			//* Test if apache starts with the new configuration file
			$apache_online_status_before_restart = $this->_checkTcp('localhost',80);
			$app->log('Apache status is: '.$apache_online_status_before_restart,LOGLEVEL_DEBUG);
			$app->services->restartService('httpd','restart');
			
			// wait a few seconds, before we test the apache status again
			sleep(2);
		
			//* Check if apache restarted successfully if it was online before
			$apache_online_status_after_restart = $this->_checkTcp('localhost',80);
			$app->log('Apache online status after restart is: '.$apache_online_status_after_restart,LOGLEVEL_DEBUG);
			if($apache_online_status_before_restart && !$apache_online_status_after_restart) {
				$app->log('Apache did not restart after the configuration change for website '.$data['new']['domain'].' Reverting the configuration. Saved non-working config as '.$vhost_file.'.err',LOGLEVEL_WARN);
				copy($vhost_file,$vhost_file.'.err');
				copy($vhost_file.'~',$vhost_file);
				$app->services->restartService('httpd','restart');
			}
			//* We do not check the apache config after changes (is faster)
			if($apache_chrooted) {
				$app->services->restartServiceDelayed('httpd','restart');
			} else {
				// request a httpd reload when all records have been processed
				$app->services->restartServiceDelayed('httpd','reload');
			}
		
		// Remove the backup copy of the config file.
		if(@is_file($vhost_file.'~')) unlink($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');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');
		if($web_config['website_basedir'] != '' && @is_file($web_config['website_basedir'].'/etc/passwd')) {
			$apache_chrooted = true;
		} else {
			$apache_chrooted = false;
		}
		if($data['old']['type'] != 'vhost' && $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 = $app->db->queryOneRecord('SELECT * FROM web_domain WHERE domain_id = '.$parent_domain_id." AND active = 'y'");
			$data['new'] = $tmp;
			$data['old'] = $tmp;
			$this->action = 'update';
			// just run the update function
			$this->update($event_name,$data);
		} else {
			//* This is a website
			// Deleting the vhost file, symlink and the data directory
			$vhost_symlink = escapeshellcmd($web_config['vhost_conf_enabled_dir'].'/'.$data['old']['domain'].'.vhost');
			$app->log('Removing symlink: '.$vhost_symlink.'->'.$vhost_file,LOGLEVEL_DEBUG);
			$vhost_file = escapeshellcmd($web_config['vhost_conf_dir'].'/'.$data['old']['domain'].'.vhost');
			$app->log('Removing vhost file: '.$vhost_file,LOGLEVEL_DEBUG);
			$docroot = escapeshellcmd($data['old']['document_root']);
			if($docroot != '' && !stristr($docroot,'..')) exec('rm -rf '.$docroot);
			//remove the php fastgi starter script if available
			if ($data['old']['php'] == 'fast-cgi') {
				$fastcgi_starter_path = str_replace('[system_user]',$data['old']['system_user'],$web_config['fastcgi_starter_path']);
				if (is_dir($fastcgi_starter_path)) {
					exec('rm -rf '.$fastcgi_starter_path);
			//remove the php cgi starter script if available
			if ($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'],$web_config['cgi_starter_path']);
				if (is_dir($cgi_starter_path)) {
					exec('rm -rf '.$cgi_starter_path);
			$app->log('Removing website: '.$docroot,LOGLEVEL_DEBUG);
			// Delete the symlinks for the sites
			$client = $app->db->queryOneRecord('SELECT client_id FROM sys_group WHERE sys_group.groupid = '.intval($data['old']['sys_groupid']));
			$client_id = intval($client['client_id']);
			$tmp_symlinks_array = explode(':',$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($tmp_symlink)) {
						unlink($tmp_symlink);
						$app->log('Removing symlink: '.$tmp_symlink,LOGLEVEL_DEBUG);
			// 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);
			//delete the web user
			$command = 'userdel';
			$command .= ' '.$data['old']['system_user'];
			if($apache_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,$web_config);
			}
	//* This function is called when a IP on the server is inserted, updated or deleted
	function server_ip($event_name,$data) {
		global $app, $conf;
		// load the server configuration options
		$app->uses('getconf');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');
		$tpl->newTemplate('apache_ispconfig.conf.master');
		$records = $app->db->queryAllRecords('SELECT * FROM server_ip WHERE server_id = '.$conf['server_id']." AND virtualhost = 'y'");
		if(count($records) > 0) {
			$tpl->setLoop('ip_adresses',$records);
		}
		$vhost_file = escapeshellcmd($web_config['vhost_conf_dir'].'/ispconfig.conf');
		file_put_contents($vhost_file,$tpl->grab());
		$app->log('Writing the conf file: '.$vhost_file,LOGLEVEL_DEBUG);

	/**
	 * This function is called when a Webdav-User is inserted, updated or deleted.
	 *
	 * @author Oliver Vogel
	 * @param string $event_name
	 * @param array $data
	 */
	public function webdav($event_name,$data) {
		global $app, $conf;
		
		/*
		 * load the server configuration options
		*/
		$app->uses('getconf');
		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');

		if (($event_name == 'webdav_user_insert') || ($event_name == 'webdav_user_update')) {

			/*
			 * Get additional informations
			*/
			$sitedata = $app->db->queryOneRecord('SELECT document_root, domain, system_user, system_group FROM web_domain WHERE domain_id = ' . $data['new']['parent_domain_id']);
			$documentRoot = $sitedata['document_root'];
			$domain = $sitedata['domain'];
			$user = $sitedata['system_user'];
			$group = $sitedata['system_group'];

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

			/*
			 * First the webdav-root - folder has to exist
			*/
			if(!is_dir($documentRoot . '/webdav/' . $data['new']['dir'])) {
				$app->log('Webdav User directory '.$documentRoot.'/webdav/'.$data['new']['dir'].' does not exist. Creating it now.',LOGLEVEL_DEBUG);
				exec('mkdir -p '.escapeshellcmd($documentRoot . '/webdav/' . $data['new']['dir']));
			}

			/*
			 * The webdav - Root needs the group/user as owner and the apache as read and write
			$this->_exec('chown ' . $user . ':' . $group . ' ' . escapeshellcmd($documentRoot . '/webdav/'));
			$this->_exec('chmod 770 ' . escapeshellcmd($documentRoot . '/webdav/'));
			 * The webdav folder (not the webdav-root!) needs the same (not in ONE step, because the
			 * pwd-files are owned by root)
			$this->_exec('chown ' . $user . ':' . $group . ' ' . escapeshellcmd($documentRoot . '/webdav/'. $data['new']['dir'] . ' -R'));
			$this->_exec('chmod 770 ' . escapeshellcmd($documentRoot . '/webdav/' . $data['new']['dir'] . ' -R'));

			/*
			 * if the user is active, we have to write/update the password - file
			 * if the user is inactive, we have to inactivate the user by removing the user from the file
			*/
			if ($data['new']['active'] == 'y') {
				$this->_writeHtDigestFile( $documentRoot . '/webdav/' . $data['new']['dir'] . '.htdigest', $data['new']['username'], $data['new']['dir'], $data['new']['password']);
			}
			else {
				/* empty pwd removes the user! */
				$this->_writeHtDigestFile( $documentRoot . '/webdav/' . $data['new']['dir'] . '.htdigest', $data['new']['username'], $data['new']['dir'], '');
			}

			/*
			 * Next step, patch the vhost - file
			*/
			$vhost_file = escapeshellcmd($web_config['vhost_conf_dir'] . '/' . $domain . '.vhost');
			$this->_patchVhostWebdav($vhost_file, $documentRoot . '/webdav');
			/*
			 * Last, restart apache
			*/
			if($apache_chrooted) {
				$app->services->restartServiceDelayed('httpd','restart');
			} else {
				// request a httpd reload when all records have been processed
				$app->services->restartServiceDelayed('httpd','reload');
			}

		}

		if ($event_name == 'webdav_user_delete') {
			/*
			 * Get additional informations
			*/
			$sitedata = $app->db->queryOneRecord('SELECT document_root, domain FROM web_domain WHERE domain_id = ' . $data['old']['parent_domain_id']);
			$documentRoot = $sitedata['document_root'];
			$domain = $sitedata['domain'];

			/*
			 * We dont't want to destroy any (transfer)-Data. So we do NOT delete any dir.
			 * So the only thing, we have to do, is to delete the user from the password-file
			$this->_writeHtDigestFile( $documentRoot . '/webdav/' . $data['old']['dir'] . '.htdigest', $data['old']['username'], $data['old']['dir'], '');
			
			/*
			 * Next step, patch the vhost - file
			*/
			$vhost_file = escapeshellcmd($web_config['vhost_conf_dir'] . '/' . $domain . '.vhost');
			$this->_patchVhostWebdav($vhost_file, $documentRoot . '/webdav');
			
			/*
			 * Last, restart apache
			*/
			if($apache_chrooted) {
				$app->services->restartServiceDelayed('httpd','restart');
			} else {
				// request a httpd reload when all records have been processed
				$app->services->restartServiceDelayed('httpd','reload');
			}
		}
	}


	/**
	 * This function writes the htdigest - files used by webdav and digest
	 * more info: see http://riceball.com/d/node/424
	 * @author Oliver Vogel
	 * @param string $filename The name of the digest-file
	 * @param string $username The name of the webdav-user
	 * @param string $authname The name of the realm
	 * @param string $pwd      The password-hash of the user
	private function _writeHtDigestFile($filename, $username, $authname, $pwdhash ) {
		$changed = false;
		if(is_file($filename)) {
			$in = fopen($filename, 'r');
			$output = '';
			/*
			* read line by line and search for the username and authname
			*/
			while (preg_match("/:/", $line = fgets($in))) {
				$line = rtrim($line);
				$tmp = explode(':', $line);
				if ($tmp[0] == $username && $tmp[1] == $authname) {
					/*
					* found the user. delete or change it?
					*/
					if ($pwdhash != '') {
						$output .= $tmp[0] . ':' . $tmp[1] . ':' . $pwdhash . "\n";
						}
					$changed = true;
				}
				else {
					$output .= $line . "\n";
				}
		}
		/*
		 * if we didn't change anything, we have to add the new user at the end of the file
		*/
		if (!$changed) {
			$output .= $username . ':' . $authname . ':' . $pwdhash . "\n";

		/*
		 * Now lets write the new file
		*/
		if(trim($output) == '') {
			unlink($filename);
		} else {
			file_put_contents($filename, $output);
		}
	}

	/**
	 * This function patches the vhost-file and adds all webdav - user.
	 * This function is written, because the creation of the vhost - file is sophisticated and
	 * i don't want to make it more "heavy" by also adding this code too...
	 * @author Oliver Vogel
	 * @param string $fileName The Name of the .vhost-File (path included)
	 * @param string $webdavRoot The root of the webdav-folder
	 */
	private function _patchVhostWebdav($fileName, $webdavRoot) {
		$in = fopen($fileName, 'r');
		$output = '';
		$inWebdavSection = false;

		/*
		 * read line by line and search for the username and authname
		*/
		while ($line = fgets($in)) {
			/*
			 *  is the "replace-comment" found...
			*/
			if (trim($line) == '# WEBDAV BEGIN') {
				/*
				 * The begin of the webdav - section is found, so ignore all lines til the end  is found
				*/
				$inWebdavSection = true;

				$output .= "      # WEBDAV BEGIN\n";

				/*
				 * add all the webdav-dirs to the webdav-section
				*/
				$files = @scandir($webdavRoot);
				if(is_array($files)) {
				foreach($files as $file) {
					if (substr($file, strlen($file) - strlen('.htdigest')) == '.htdigest') {
						/*
						 * found a htdigest - file, so add it to webdav
						*/
						$fn = substr($file, 0, strlen($file) - strlen('.htdigest'));
						$output .= "\n";
						// $output .= "      Alias /" . $fn . ' ' . $webdavRoot . '/' . $fn . "\n";
						// $output .= "      <Location /" . $fn . ">\n";
						$output .= "      Alias /webdav/" . $fn . ' ' . $webdavRoot . '/' . $fn . "\n";
						$output .= "      <Location /webdav/" . $fn . ">\n";
						$output .= "        DAV On\n";
						$output .= "        AuthType Digest\n";
						$output .= "        AuthName \"" . $fn . "\"\n";
						$output .= "        AuthUserFile " . $webdavRoot . '/' . $file . "\n";
						$output .= "        Require valid-user \n";
						$output .= "        Options +Indexes \n";
						$output .= "        Order allow,deny \n";
						$output .= "        Allow from all \n";
						$output .= "      </Location> \n";
					}
				}
			}
			/*
			 *  is the "replace-comment-end" found...
			*/
			if (trim($line) == '# WEBDAV END') {
				/*
				 * The end of the webdav - section is found, so stop ignoring
				*/
				$inWebdavSection = false;
			}

			/*
			 * Write the line to the output, if it is not in the section
			*/
			if (!$inWebdavSection) {
				$output .= $line;
			}
		}
		fclose($in);

		/*
		 * Now lets write the new file
		*/
		file_put_contents($fileName, $output);

	}
	
	//* Update the awstats configuration file
	private function awstats_update ($data,$web_config) {
		global $app;
		
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		$awstats_conf_dir = $web_config['awstats_conf_dir'];
		
		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.'.$data['old']['domain'].'.conf') ) {
				unlink($awstats_conf_dir.'/awstats.'.$data['old']['domain'].'.conf');
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			$content .= "Include \"".$awstats_conf_dir."/awstats.conf\"\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";
			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);
		}
	}
	
	//* 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') ) {
			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);
	
	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,'..')) {
				@rmdir($client_dir);
				$app->log('Removed client directory: '.$client_dir,LOGLEVEL_DEBUG);
			}
			
			$this->_exec('groupdel client'.$client_id);
			$app->log('Removed group client'.$client_id,LOGLEVEL_DEBUG);
		}
		
	}
	//* Wrapper for exec function for easier debugging
	private function _exec($command) {
		global $app;
		$app->log('exec: '.$command,LOGLEVEL_DEBUG);
	
	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) {
		// $from already exists
		$from = realpath($f);

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