gistfile1.rb

# -*- encoding: utf-8 -*-
require 'net/http'
require 'rubygems'
require 'nokogiri'

class Comment
  class << self
    attr_accessor :cookie
  end
  #下の値はブラウザのクッキーから取得してください
  self.cookie = 'user_session=user_session_xxxxxxxx_xxxxxxxxxxxxxxx;'
  def initialize(live_id)
    @live_id = live_id
    @status = get_playerstatus()
  end
  def get_playerstatus
    Net::HTTP.start 'watch.live.nicovideo.jp' do |http|
      response = http.get "/api/getplayerstatus?v=#{@live_id}",
            {'Cookie' => Comment.cookie, 'User-Agent' => 'Ruby/Nicolive'}
      xml = Nokogiri(response.body)
      if not xml.elements.attribute('status').value() == 'ok'
        raise '放送は既に終了しています'
      end
      {
        address: (xml/:addr).inner_text(),
        port: (xml/:port).inner_text(),
        thread: (xml/:thread).inner_text()
      }
    end
  end
  def start()
    TCPSocket.open(@status[:address], @status[:port].to_i) do |sock|
      ticket = "<thread thread=\"#{@status[:thread]}\" version=\"20061206\" res_from=\"-1000\"/>\0"
      sock.write(ticket)
      p ticket
      while true
        stream = sock.gets("\0")
        puts stream
      end
    end
  end
end

#みたい放送の放送IDを入れる(coxxxxxxx形式でもOK)
comment = Comment.new 'lvxxxxxxxx'
comment.start()