Rack IP Filter + HTTP Basic Auth

gistfile1.rb

class FilterAuth < ::Rack::Auth::Basic

  def initialize(app, options = { }, realm=nil, &authenticator)
    super(app, realm, &authenticator)
    @ip_filter = ::Rack::Access.new(app, options)
  end

  def call(env)
    # only need to do auth if the ip filter blocks the request
    response = @ip_filter.call(env)
    if response[0] == 403
      return super(env)
    else
      return response
    end
  end
end