Update handler-example.sh

A full-fledged example based on dnyu API.

handler-example.sh

@@ -26,6 +26,22 @@ case "$cmd" in
         echo "key_path: ${key_path}" 1>&2
         echo "port: ${port}" 1>&2
         echo "json: ${cbot_json}" 1>&2
+        # the json below is from dynu's API you will need to change accordingly
+        curl -X POST https://api.dynu.com/v2/dns/<DNS-ID>/record -H "accept: application/json" -H "API-Key: <API-KEY>" \
+        -H "Content-Type: application/json" -d "{\"nodeName\":\"_acme-challenge\",\"recordType\":\"TXT\",\"ttl\":90,\"state\":true,\"group\":\"\",\"textData\":\"${validation}\"}"
+
+        # wait for the record to actually show up (the builtin time out is WAY too sort)
+        while true
+        do
+            recordset=$(dig _acme-challenge.<DOMAIN> TXT +short | tr -d "\"")
+            if [[ $recordset == ${validation} ]]
+            then
+                sleep 10s
+                break
+            else
+                sleep 1m
+            fi
+        done
         echo "-----END PERFORM-----" 1>&2
         ;;
     post-perform)
@@ -45,6 +61,9 @@ case "$cmd" in
         echo "token: ${token}" 1>&2
         echo "error: ${error}" 1>&2
         echo "json: ${cbot_json}" 1>&2
+        recordset=$(curl -s -X GET  https://api.dynu.com/v2/dns/<DNS-ID>/record -H "accept: application/json" -H "API-Key: <API-KEY>")
+        temp=$(echo "$recordset" | sed 's+{+\n+g' | grep "${validation}" | cut -d ":" -f 2 | cut -d "," -f 1)
+        curl -s -X DELETE https://api.dynu.com/v2/dns/<DNS-ID>/record/"${records[0]}" -H "accept: application/json" -H "API-Key: <API-KEY>"
         echo "-----END CLEANUP-----" 1>&2
         ;;
     post-cleanup)