code: function readDir(err, files) {
    if (err) {
      internalServerError.call(this, err);
    } else {
      var dirName = decodeURIComponent(
        getCurrentPathName(this)
      );
      this.output.push(
        "<!doctype html>",
        "<html>",
          "<head>",
            "<title>Index of ", dirName, "</title>",
            '<meta name="viewport" content="',
              'width=device-width,',
              'initial-scale=1.0,',
              'maximum-scale=1.0,',
              'user-scalable=no',
            '"/>',
            '<meta name="generator" content="polpetta" />',
          "</head>",
          "<body>",
            "<strong>Index of " + dirName + "</strong>",
            "<ul>"
      );
      if (dirName != WEB_SEP) {
        this.output.push(
          '<li><a href="..">..</a></li>'
        );
      }
      files.forEach(readDir.forEach, this.output);
      this.output.push(
            "</ul>",
          "</body>",
        "</html>"
      );
      this.output.flush(200, "text/html", "utf-8");
    }
  }
docs: used to show a directory content