repost/plugins/scrape.rb

require 'open-uri'
require 'digest/md5'

include EventMachine::IRC::Commands

Client.register_trigger("PRIVMSG") do |msg|
    msg[:params].each do |word|
        if word =~ /4cdn[.]org/ then
            ext = "." + word.sub(/.*[.]([^.]*)/, '\1') if word.match(/[^.]+[.][^.]+/)
            content = open(word).read
            md5 = Digest::MD5.hexdigest(content)
            File.open(Config[:scrape][:basepath] + md5 + ext, 'w') do |file|
                file.write(content)
            end
        end
    end
end