class ActionDispatch::HostAuthorization

def call(env)
  return @app.call(env) if @permissions.empty?
  request = Request.new(env)
  hosts = blocked_hosts(request)
  if hosts.empty? || excluded?(request)
    mark_as_authorized(request)
    @app.call(env)
  else
    env["action_dispatch.blocked_hosts"] = hosts
    @response_app.call(env)
  end
end