bot.rb

require "rubygems"
require "xmpp4r-simple"
require "session"

USERNAME = "sebcioz@v-lo.krakow.pl"
PASSWORD = "*"

im = Jabber::Simple.new(USERNAME, PASSWORD)
sh = Session::new

im.add("sebcioz@gmail.com")
im.deliver("sebcioz@gmail.com", "Hi")

loop do
  im.received_messages do |msg| 
    stdout, stderr = sh.execute(msg.body)
    pwd = sh.execute("pwd")
    im.deliver("sebcioz@gmail.com", stdout)
    im.deliver("sebcioz@gmail.com", "=> #{pwd}")
  end
end