Machine model

machine.rb

require 'ping'
require 'socket'
require 'net/ssh'
require 'wol.rb'

class Machine < ActiveRecord::Base

  def alive?
    if Ping.pingecho(self.ip, 2)
      self.mstatus = "up"
      self.last_alive = Time.now
      self.save
      true
    else
      self.mstatus = "down"
      self.save
      false
    end
  end

  def wake
    m = WakeOnLan.new({:ip => self.ip, :mac => self.mac})
    m.wake
  end

  def sleep
    Thread.new {
      if self.mtype == 'linux' && self.mstatus == "up"
        Net::SSH.start(self.ip, self.user, :password => self.password) do |ssh|
          ssh.exec('halt -p')
        end
      elsif self.mtype == 'windows' && self.mstatus == "up"
        Net::SSH.start(self.ip, self.user, :password => self.password) do |ssh|
          ssh.exec('shutdown /h')
        end
      end

      Kernel.sleep(15)
      Thread.exit
    }
  end
end