From 0b2119c4946af91fb847713cc98381968afb8cc6 Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Tue, 8 Dec 2015 16:00:43 +0100
Subject: [PATCH] _request: fix unset variable

_request() is also called when $challenge_token/$keyauth is not set.
---
 letsencrypt.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/letsencrypt.sh b/letsencrypt.sh
index 69e778c..acf33db 100755
--- a/letsencrypt.sh
+++ b/letsencrypt.sh
@@ -100,7 +100,7 @@ _request() {
     rm -f "${tempcont}"
 
     # Wait for hook script to clean the challenge if used
-    if [[ -n "${HOOK}" ]]; then
+    if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token:+set}"  ]]; then
       ${HOOK} "clean_challenge" '' "${challenge_token}" "${keyauth}"
     fi