Creating custom subscription plugin?

Hi all,

I want to do a custom subscription model (based on a connection in external system, it can be auto-subscribe, auto-deny, or asking subscription), and subscription plugin is not what I want.

I couldn’‘t find the source code, guess it isn’‘t GPL licensed (and wouldn’‘t be a good joke if I’'d reverse engineer it), could I have some hints how such a plugin could be created?

UPDATE: found it comes with wildfire, although it isn’'t obvious in the plugins download page.

Message was edited by: aadaam