From: Brian Candler <B.Candler@...>
Date: 2008-09-13T06:16:02+09:00
Subject: Re: Custom WEBrick FileHandler

> Is it possible in WEBrick to make a FileHandler with some elements of
> page changed in a custom way? For example, could I have the file sizes
> displayed in KB, or in red font? Is it possible to intercept the
> response page creation process, without changing its main functionality?

I presume you're talking about when WEBrick returns a directory listing?

Your best bet with WEBrick (I've learned) is to find your way around the
source. Under your Ruby lib directory, typically /usr/lib/ruby/1.8, the file
you need to look at is webrick/httpservlet/filehandler.rb

Look at the method set_dir_list in the FileHandler class. There doesn't seem
to be any hook for changing the formatting, but nothing stops you
overwriting set_dir_list with your own version.

  require 'webrick'
  class WEBrick::HTTPServlet::FileHandler
    def set_dir_list
      ... copy-paste the original method here
      ... then modify it
    end
  end

Or you could subclass FileHandler to make a new class.

Regards,

Brian.