Don't add trackers to private torrents

Author: Phoenix09

defaulttrackers/core.py

@@ -70,6 +70,8 @@ def update(self):
 
     def on_torrent_added(self, torrent_id):
         torrent = component.get("TorrentManager")[torrent_id]
+        if torrent.torrent_info.priv() or torrent.get_status(["private"])["private"]:
+            return
         trackers = torrent.get_status(["trackers"])["trackers"]
         existing_urls = [tracker["url"] for tracker in trackers]
         got_new_trackers = False