installer_base.lib.php

			if ($res == 0) { // stat successfull
				list($access, $user, $group) = explode(" ", $stat);
			}

			if ( copy($tConf, $tConf.'~') ) {
				chmod($tConf.'~', 0400);
			}
		}

		wf($tConf, $tContents); // write file
		if (func_num_args() >= 4) // override rights and/or ownership
			{

			$output = array_slice($args, 2);

			switch (sizeof($output)) {
			case 3:
				$umask = array_shift($output);
				if (is_numeric($umask) && preg_match('/^0?[0-7]{3}$/', $umask)) {
					$access = $umask;
				}
			case 2:
				if (is_user($output[0]) && is_group($output[1])) {
					list($user, $group) = $output;
				}
				break;
			}
		}

		if (!empty($user) && !empty($group)) {
			chown($tConf, $user);
			chgrp($tConf, $group);
		}

		if (!empty($access)) {
			exec("chmod $access $tConf");
		}
	}

	/**
	 * Helper function - filter the contents of a config
	 * file by inserting the common ispconfig database
	 * credentials.
	 *
	 * @param $tContents
	 * @return string
	 */
	protected function insert_db_credentials($tContents) {
		global $conf;

		$tContents = str_replace('{mysql_server_ispconfig_user}', $conf["mysql"]["ispconfig_user"], $tContents);
		$tContents = str_replace('{mysql_server_ispconfig_password}', $conf["mysql"]["ispconfig_password"], $tContents);
		$tContents = str_replace('{mysql_server_database}', $conf["mysql"]["database"], $tContents);
		$tContents = str_replace('{mysql_server_ip}', $conf["mysql"]["ip"], $tContents);
		$tContents = str_replace('{mysql_server_host}', $conf['mysql']['host'], $tContents);
		$tContents = str_replace('{mysql_server_port}', $conf['mysql']['port'], $tContents);
		$tContents = str_replace('{mysql_server_port}', $conf["mysql"]["port"], $tContents);

		return $tContents;
	}

}