How can I build a front end webgui control panel to control SoftEther VPN?

I have setup the SoftEther (http://ift.tt/1kj6DH4) VPN platform on a linux box, and would like to control (add,create,delete etc) users from a webgui. How could I accomplish this, or where should I look for resources on how to do it? I have been unable to locate any useful information thus far.

Thanks