lists all so far released #29C3 recordings by modification date

29c3.rb

#!/usr/bin/env ruby
# encoding: utf-8

require 'date'
require 'curb'
require 'nokogiri'

begin
  curl = Curl::Easy.perform('http://mirror.fem-net.de/CCC/29C3/mp4-h264-HQ/')
  html = Nokogiri::HTML.parse(curl.body_str)
  rows = html.css('tr')
  header = rows.shift
  date_column = header.css('th, td').to_a.
    index {|td| td.inner_text.match(/modified/i) }
  rows = rows.to_a.sort_by do |r|
    r.css("td:nth-child(#{date_column+1})").inner_text
  end 
  puts rows.map {|r| r.css('a').inner_text.sub(/\.(sha1|torrent)$/, '') }.uniq.
    select {|r| r.match(/mp4/) }
rescue
  print '☠ '
  retry
end