code: function(req, res, router, cb) {
    var url = (req.url === '/') ? '/' + router.defaultPage : req.url;
    var source = router.static.path + url; //path.resolve(router.static.path, '.'+url);
    if (url.indexOf('.') != -1) {
      router.stat(source, function(err, stat) {
        if (err || stat === undefined || stat.size === undefined) {
          cb();
        } else {
          res.writeHead(200, {
            'Content-Type': router.getMime(url),
            'Content-Length': stat.size
          });
          router.openStream(source).pipe(res);
        }
      });
    } else {
      cb();
    }
  }
docs: /*Searching and Reading the file system