In fact, I don't know if I must return ```true``` or ```false```.

If I return ```false```, it means that if a controller has a rule on an action, every other action must be defined by a rule, or a global role permission must be set for this controller. It's safe, ans it's my préférence, but it's a BC break.

If I return ```true``` every action forgotten in config will be wide open.

I can think about a wildcard role ```*``` to ease the configuration while keeping it safer.

An opinion ?