From b6479903cfbbff410347c4c10304e8af712d3b0b Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Sun, 24 Oct 2021 12:48:16 +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 38da5e467..279fc6788 100644
--- a/daemon.py
+++ b/daemon.py
@@ -538,6 +538,9 @@ class PubServer(BaseHTTPRequestHandler):
     def _blockedUserAgent(self, callingDomain: str, agentStr: str) -> bool:
         """Should a GET or POST be blocked based upon its user agent?
         """
+        if not agentStr:
+            return False
+
         agentStrLower = agentStr.lower()
         defaultAgentBlocks = [
             'fedilist.com'