[LightDM] User login/logout scripts

[Jaap Winius]

Hi folks,

After grabbing the source packages for lightdm and lightdm-gtk-greeter 
from Debian experimental and applying some patches to lightdm to fix the 
language selector, I now have it working on a Debian wheezy test system.

However, before it's ready for production, I need it to run a user login 
script and a user logout script. Unfortunately, it seems lightdm is only 
capable of running these scripts as root (via session-setup-script and 
session-cleanup-script), which makes things a little more complicated, 
instead of as the user logging in or out.

My question is, what is the most reliable way to determine the user 
account name involved when these login and logout scripts are run?

Thanks,

Jaap