    # File lib/action_controller/vendor/rack-1.0/rack/directory.rb, line 78
        def list_directory
          @files = [['../','Parent Directory','','','']]
          glob = F.join(@path, '*')

          Dir[glob].sort.each do |node|
            stat = stat(node)
            next  unless stat
            basename = F.basename(node)
            ext = F.extname(node)

            url = F.join(@script_name, @path_info, basename)
            size = stat.size
            type = stat.directory? ? 'directory' : Mime.mime_type(ext)
            size = stat.directory? ? '-' : filesize_format(size)
            mtime = stat.mtime.httpdate
            url << '/'  if stat.directory?
            basename << '/'  if stat.directory?

            @files << [ url, basename, size, type, mtime ]
          end

          return [ 200, {'Content-Type'=>'text/html; charset=utf-8'}, self ]
        end