某小学4年生のサイトをハックするプロキシサーバ

proxy.rb

#!/usr/bin/env ruby

require 'webrick'
require 'webrick/httpproxy'

BIND_ADDR = '127.0.0.1'
PORT = 8080

SCORE = 12345678

class HackProxy < WEBrick::HTTPProxyServer
  def proxy_service(req, res)
    unless req.host == 'why-kaisan.com' && req.path == '/score.json' then
      super(req, res)
      return
    end

    puts 'Hit why-kaisan.com/score.json'

    res.status = 200
    res.content_type = 'application/json'
    res.body = '{"score":%d}' % SCORE
  end
end

config = { :BindAddress => BIND_ADDR, :Port => PORT, :AccessLog => [] }
s = HackProxy.new( config )
Signal.trap('INT') do
  s.shutdown
end
s.start