From 9d86bc0f7497170ea77695cbdb9e5eff343790db Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Thu, 29 Jul 2021 15:24:29 +0100
Subject: [PATCH] Check length of nickname

---
 utils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/utils.py b/utils.py
index abf25d28f..e70657ca4 100644
--- a/utils.py
+++ b/utils.py
@@ -1613,6 +1613,10 @@ def _isReservedName(nickname: str) -> bool:
 def validNickname(domain: str, nickname: str) -> bool:
     """Is the given nickname valid?
     """
+    if len(nickname) == 0:
+        return False
+    if len(nickname) > 30:
+        return False
     if not isValidLanguage(nickname):
         return False
     forbiddenChars = ('.', ' ', '/', '?', ':', ';', '@', '#')