Disallow change optional limit on public proxy (#813)

Author: jerry-wolf

plugins/disabled-Multiuser/MultiuserPlugin.py

@@ -182,6 +182,12 @@ def actionSiteClone(self, to, *args, **kwargs):
         else:
             return super(UiWebsocketPlugin, self).actionSiteClone(to, *args, **kwargs)
 
+    def actionOptionalLimitSet(self, to, *args, **kwargs):
+        if not config.multiuser_local:
+            self.cmd("notification", ["info", "This function is disabled on this proxy"])
+        else:
+            return super(UiWebsocketPlugin, self).actionSiteClone(to, *args, **kwargs)
+
 
 @PluginManager.registerTo("ConfigPlugin")
 class ConfigPlugin(object):