Utasuki JOYSOUND recent sing song post to Twitter

utasuki_history.rb

require 'rubygems'
require 'mechanize'
require 'hpricot'
require 'twitter'

JOYSOUND_ID_MAIL = ''
JOYSOUND_ID_PASS = ''
TWITTER_ID   = ''
TWITTER_PASS = ''
FLAG_FILE = 'utasukipost.dat'

#---------------------------------------------------------------------------------------------------

agent = WWW::Mechanize.new

page = agent.get('http://joysound.com/')
page.forms[1].fields[0].value = JOYSOUND_ID_MAIL
page.forms[1].fields[1].value = JOYSOUND_ID_PASS
page = page.forms[1].submit
page = page.links[0].click
page = agent.get('http://joysound.com/ex/utasuki/mypage/singhistory/index.htm')

doc = Hpricot(page.body)
list = []
(((doc/"div.listLv2")/:tbody)/:tr).each do |tr|
  tds    = tr/:td
  date   = tds[0].inner_html
  song   = (tds[1]/:a).inner_html
  singer = (tds[2]/:a).inner_html
  list.push({:date => date, :song => song, :singer => singer})
end

#---------------------------------------------------------------------------------------------------

last_sing = list[0]

file_flag_str = ''
last_flag_str  = "#{last_sing[:date]}\t#{last_sing[:song]}\t#{last_sing[:singer]}" 

if File.exists?(FLAG_FILE)
  File.open(FLAG_FILE, 'r') do |f|
    file_flag_str = f.read
  end
else
  file_flag_str = ''  
end

if file_flag_str != last_flag_str
  twitter = Twitter::Client.new(:login => TWITTER_ID, :password => TWITTER_PASS)
  twitter.status(:post, "歌った　♪#{last_sing[:song]}／#{last_sing[:singer]}") 
  File.open(FLAG_FILE, 'w') do |f|
    f.write(last_flag_str)
  end
end