Spigot Antipiracy injecting the user in a plugin

[WellDone.java]

Hello to all DL unicorns, I am creating a community, I am developer of plugins, but I want nobody to re-post my plugins just creating an account through my site via xenforo Is there an addon that does this? If not how can I do it?

replacing %%USER%%

 

[WellDone.java]

I'll search on thank you!