IP Range Checker

ip_range.rb

require 'ipaddr'

class ApplicationController < ActionController::Base
  protect_from_forgery

  before_filter :redirect_if_bolivia

  private

  def redirect_if_bolivia
    if bolivian_blocks.any? { |block| block.include?(request.remote_ip) }
        #redirect user to www.foo.com
    end
  end

  def bolivian_blocks
    %w{
      12.144.86.0/23
      31.201.1.176/30
    }.map { |subnet| IPAddr.new subnet }
  end
end