def initialize(host, port, user, pass)
    @host = host
    @port = port
    @user = user
    @pass = pass
    @httpo = Net::HTTP.new(@host, @port)
    @httpo.use_ssl = true
  end

  def do_request(url)
  	@httpo.start {|http|
  	  req = Net::HTTP::Get.new(url)
  	  req.basic_auth @user, @pass
  	  response = http.request(req)
  	  if response.code == "200" and response.message == "OK" then
  	    data = XmlSimple.xml_in(response.body)
  	    return (yield data)
  	  else
  	    return false
  	  end # if reponse code is 200
  	}
  end

  def get_host_name
    do_request('/xml-api/gethostname') do |data|
      data['hostname'].to_s
    end
  end