password protect any site without devise users

gistfile1.txt

class AnyController < ApplicationController

  # HTTP authentication should be used for staging to prevent unauthorized outside access to application.
  before_filter :authenticate if Rails.env.staging?

  private

  def authenticate
    authenticate_or_request_with_http_basic do |user,pass|
      user == "usernamehere" && pass == "passwordhere"
    end
  end
end