Youtube Downloader (Ruby)

ytget.rb

#!/usr/bin/ruby -rubygems

require 'uri'
require 'curb'

if ARGV.size == 0
  puts "Usage: ytget <video>"
  exit 0
end

video = ARGV.shift

# video page request, parse out video auth url
curl = Curl::Easy.new(video)
curl.on_body do |data|

  if data =~ /img.src = '(.*?)'/
    $url = $1.gsub(/\\/, '')
  end

  data.length
end

curl.perform


# video auth thingie
curl = Curl::Easy.new($url)
curl.perform

flv_url = $url.gsub(/generate_204/, 'videoplayback')

# download video
curl = Curl::Easy.new(flv_url)
file = File.open('data.flv', 'w')

curl.on_body do |data|
  file.write(data)
  data.length

end

curl.perform

file.close

Doesn't work for me unfortunately