Ruby class for download web page and translate it to UTF-8 encoding

Downloader.rb

require "net/http"
require "ensure"

class Downloader
  # Expected encodings
  ENCODINGS = Array['UTF-8', 'WINDOWS-1251', 'KOI-8']

  def get_page(url)
    response = Net::HTTP.get_response(URI.parse(url))
    while response.kind_of?(Net::HTTPRedirection)
      url = response['Location']
      response = Net::HTTP.get_response(URI.parse(url))
    end
    translate_to_utf(response.body)
  end

  def translate_to_utf(page)
    encoding = Ensure::Encoding.guess_encoding(page, ENCODINGS).name
    if encoding != 'UTF-8'
      page.ensure_encoding('UTF-8', :external_encoding => encoding)
    else 
     page
    end
  end
end