blaster.rb

require 'net/http'
require 'uri'

code_sym = Hash.new("o").merge "302" => "?", "200" => ".", "404" => "x", "503" => "*"

uri = URI.parse(ARGV.first)
puts "Trying : #{uri.host} at #{uri.path}"
while(true)
  begin
    res = Net::HTTP.get_response(uri)
    $stdout << code_sym[res.code]
    res.body
  rescue Exception => ex
    $stdout << "T"
  end
end