Check for nickname

daemon.py

@@ -12323,7 +12323,9 @@ class PubServer(BaseHTTPRequestHandler):
                 nicknameStr = nicknameStr.split('?')[0]
             if '/' in nicknameStr:
                 nickname = nicknameStr.split('/')[0]
-            else:
+            if not nickname:
+                print('WARN: no nickname found when receiving ' + postType +
+                      ' path ' + path)
                 return -1
             if self.server.debug:
                 print('DEBUG: POST nickname ' + nickname)