From c4816b054b949cedfdf327710fdd9ce362ac4ce4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20Sch=C3=A4ferdiek?= <alexander@schaeferdiek.eu>
Date: Wed, 25 Jan 2023 16:13:13 +0100
Subject: [PATCH] Check required vars before using them

---
 usr/local/bin/systemd_failure_notify | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/usr/local/bin/systemd_failure_notify b/usr/local/bin/systemd_failure_notify
index f9f513c..3a4ac38 100755
--- a/usr/local/bin/systemd_failure_notify
+++ b/usr/local/bin/systemd_failure_notify
@@ -21,12 +21,8 @@ if [ -z "$SYSTEMD_FAILURE_NOTFY_SERVICE" ]; then
 	exit 1;
 fi
 
-SYSTEMD_FAILURE_NOTFY_HOSTNAME=$(hostname)
-SYSTEMD_FAILURE_NOTFY_USER=$(whoami)
-
 SYSTEMD_FAILURE_NOTIFY_MAIL_ENABLED="true";
 SYSTEMD_FAILURE_NOTIFY_MAIL_ADDRESS="";
-
 SYSTEMD_FAILURE_NOTIFY_GOTIFY_ENABLED="false";
 
 # check for config file
@@ -85,6 +81,9 @@ source_config() {
 source_config "$2" "$HOME/.systemd_failure_notify.conf" "/etc/systemd_failure_notify.conf"
 check_requirements "$SYSTEMD_FAILURE_NOTIFY_MAIL_ENABLED" "$SYSTEMD_FAILURE_NOTIFY_GOTIFY_ENABLED"
 
+SYSTEMD_FAILURE_NOTFY_HOSTNAME=$(hostname)
+SYSTEMD_FAILURE_NOTFY_USER=$(whoami)
+
 SUBJECT="[systemd $SYSTEMD_FAILURE_NOTFY_HOSTNAME for $SYSTEMD_FAILURE_NOTFY_USER] $SYSTEMD_FAILURE_NOTFY_SERVICE RUN FAILED"
 MESSAGE="$SYSTEMD_FAILURE_NOTFY_SERVICE run failed"