pass variable through segments with security

[eluser]Michael Wales[/eluser]
What exactly are you trying to secure here? If it's just an ID to content within the database - just check if that content exists and if not throw a 404.

If users are limited as to the content they can see (for instance, you can see id=1 and id=2 but I can only see id=2) you will just need to make a call to the database to confirm authorization. If they are not authorized, throw a 403. This is best accomplished using an extended Controller or a pre-controller hook.