ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
YourWebsitesForm form = (YourWebsitesForm)actionForm;
UserManager userMgr = RollerFactory.getRoller().getUserManager();
PermissionsData perms = userMgr.getPermissions(form.getInviteId());
if (perms != null) {
// TODO ROLLER_2.0: notify inviter that invitee has declined invitation
// TODO EXCEPTIONS: better exception handling here
userMgr.removePermissions(perms);
RollerFactory.getRoller().flush();