bot.rb

#!/usr/bin/env ruby

require "socket"
require "rubygems"
require "twitter"
require 'oauth'
require 'pp'

# Don't allow use of "tainted" data by potentially dangerous operations
$SAFE=1

# The irc class, which talks to the server and holds the main event loop
class IRC
  def initialize(server, port, nick, channel)
    @server = server
    @port = port
    @nick = nick
    @channel = channel
  end

  def send(s)
    puts "--> #{s}"
    @irc.send "#{s}\n", 0
  end

  def connect
    # Connect to the IRC server
    @irc = TCPSocket.open(@server, @port)
    send "USER irctwitter blah blah :IRCTo Itter"
    send "NICK #{@nick}"
    send "JOIN #{@channel}"
  end

  def sendDM(input)
    # this succeeds with any params (even if wrong)
    Twitter.configure do |config|
#https://dev.twitter.com/
      config.consumer_key = "YOUR CONSUMER KEY HERE"
      config.consumer_secret = "SECRET HERE"
#http://atoken4me.heroku.com/
      config.oauth_token = "YOUR USER TOKEN HERE"
      config.oauth_token_secret = "USER SECRET HERE"
    end

    Twitter.direct_message_create(287606751, input)
  end

  def handle_server_input(input)
    # This isn't at all efficient, but it shows what we can do with Ruby
    # (Dave Thomas calls this construct "a multiway if on steroids")
    case input.strip
    when /^PING :(.+)$/i
      puts "[ Server ping ]"
      send "PONG :#{$1}"
    when /^:(.+?)!(.+?)@(.+?)\sPRIVMSG\s.+\s:[\001]PING (.+)[\001]$/i
      puts "[ CTCP PING from #{$1}!#{$2}@#{$3} ]"
      send "NOTICE #{$1} :\001PING #{$4}\001"
    when /^:(.+?)!(.+?)@(.+?)\sPRIVMSG\s.+\s:[\001]VERSION[\001]$/i
      puts "[ CTCP VERSION from #{$1}!#{$2}@#{$3} ]"
      send "NOTICE #{$1} :\001VERSION IRC to Itter v0.010\001"
    when /^:(.+?)!(.+?)@(.+?)\sPRIVMSG\s(.+)\s:(.+)$/i # ordinal echo
      input = "#{$1} says #{$5} on #{$4}"
      puts input
      sendDM(input)
    else
      puts input
    end
  end

  def main_loop()
    # Just keep on truckin' until we disconnect
    loop do
      ready = select([@irc, $stdin], nil, nil, nil)
      next unless ready
      ready[0].each do |s|
        if s == $stdin then
          return if $stdin.eof
          s = $stdin.gets
          send s
        elsif s == @irc then
          return if @irc.eof
          s = @irc.gets
          handle_server_input(s)
        end
      end
    end
  end
end

irc = IRC.new('localhost', 16667, 'IRCtoItter', '#hoge')
irc.connect()

begin
  irc.main_loop()
rescue Interrupt
rescue Exception => detail
  puts detail.message()
  print detail.backtrace.join("\n")
  retry
end