From c95e33831ca810400323dfe8f0e934112e658517 Mon Sep 17 00:00:00 2001
From: TLSM <duolsm@outlook.com>
Date: Sat, 15 Oct 2022 07:23:29 -0400
Subject: [PATCH] Check for globals in calc_users; fix error pages.

---
 files/helpers/wrappers.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/files/helpers/wrappers.py b/files/helpers/wrappers.py
index 6bd5672a8b..3f2466108d 100644
--- a/files/helpers/wrappers.py
+++ b/files/helpers/wrappers.py
@@ -9,6 +9,10 @@ import user_agents
 import time
 
 def calc_users(v):
+	# Some globals we expect aren't available when rendering error pages
+	if not g.agent or not ('session_id' in session):
+		return ''
+
 	loggedin = cache.get(f'{SITE}_loggedin') or {}
 	loggedout = cache.get(f'{SITE}_loggedout') or {}
 	timestamp = int(time.time())