From 611a6da196d4f546edbbb05b5ac4dd1f77d40aed Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Sun, 24 Oct 2021 12:49:01 +0100
Subject: [PATCH] Check that user agent exists

---
 daemon.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/daemon.py b/daemon.py
index 279fc6788..d33e27113 100644
--- a/daemon.py
+++ b/daemon.py
@@ -396,6 +396,9 @@ class PubServer(BaseHTTPRequestHandler):
         """Updates a dictionary of known crawlers accessing nodeinfo
         or the masto API
         """
+        if not uaStr:
+            return
+
         currTime = int(time.time())
         if self.server.knownCrawlers.get(uaStr):
             self.server.knownCrawlers[uaStr]['hits'] += 1