Example config YAML file for Access Denied Listener for Symfony 2.

accessDeniedConfig.yml

parameters:
  kernel.listener.atd.access_denied.class: Acme\Bundle\Listener\AccessDeniedListener

services:
  kernel.listener.accessDenied:
    class: %kernel.listener.atd.access_denied.class%
    scope: request
    arguments: ["@session", "@router", "@request"]
    tags:
       - { name: kernel.event_listener, event: kernel.exception, method: onAccessDeniedException }