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-rwxr-xr-xdehydrated/bin/dehydrated-nsupdate44
1 files changed, 41 insertions, 3 deletions
diff --git a/dehydrated/bin/dehydrated-nsupdate b/dehydrated/bin/dehydrated-nsupdate
index be773f8..0b93145 100755
--- a/dehydrated/bin/dehydrated-nsupdate
+++ b/dehydrated/bin/dehydrated-nsupdate
@@ -46,6 +46,19 @@ if command -v kdig > /dev/null 2>&1
then
# knot-dnsutils
DIG="kdig +noidn"
+
+ # out-of-tree json output support
+ if kdig +json > /dev/null 2>&1
+ then
+ DIG="${DIG} +json"
+ KDIG_JSON="true"
+
+ if ! command -v jq > /dev/null 2>&1
+ then
+ echo "'${HOOK}': need jq for knot-dnsutils with json output" >&2
+ exit 1
+ fi
+ fi
elif command -v dig > /dev/null 2>&1
then
# bind-dnsutils
@@ -79,7 +92,15 @@ do
done
# find txt record to update
-CNAME="$(${DIG} +nocomments +noquestion "_acme-challenge.${DOMAIN}" 2>&1 | grep -v '^;' | awk '/CNAME/ { print $5 }' | tail -n1)"
+case "${KDIG_JSON}" in
+ true)
+ CNAME="$(${DIG} "_acme-challenge.${DOMAIN}" | jq -r -M '.answer | .[] | .rdata' | tail -n1)"
+ ;;
+
+ *)
+ CNAME="$(${DIG} +nocomments +noquestion "_acme-challenge.${DOMAIN}" 2>&1 | grep -v '^;' | awk '/CNAME/ { print $5 }' | tail -n1)"
+ ;;
+esac
if [ -n "${CNAME}" ]
then
@@ -93,11 +114,28 @@ ZONE="${TXT_RECORD}"
while true
do
- NAMESERVERS="$(${DIG} +nocomments +noquestion NS "${ZONE}" 2>&1 | grep -v '^;' | awk '/NS/ { print $5 }')"
+ case "${KDIG_JSON}" in
+ true)
+ NAMESERVERS="$(${DIG} NS "${ZONE}" | jq -r -M '.answer | .[] | .rdata')"
+ ;;
+
+ *)
+ NAMESERVERS="$(${DIG} +nocomments +noquestion NS "${ZONE}" 2>&1 | grep -v '^;' | awk '/NS/ { print $5 }')"
+ ;;
+ esac
if [ -n "${NAMESERVERS}" ]
then
- ZONE="$(${DIG} +nocomments +noquestion NS "${ZONE}" 2>&1 | grep -v '^;' | awk '/NS/ { print $1 }' | tail -n1)"
+ case "${KDIG_JSON}" in
+ true)
+ ZONE="$(${DIG} NS "${ZONE}" | jq -r -M '.answer | .[] | .rdata' | tail -n1)"
+ ;;
+
+ *)
+ ZONE="$(${DIG} +nocomments +noquestion NS "${ZONE}" 2>&1 | grep -v '^;' | awk '/NS/ { print $1 }' | tail -n1)"
+ ;;
+ esac
+
break
else
ZONE="$(echo "${ZONE}" | cut -d '.' -f 2-)"