New DNS API: update DNS via "nsupdate -y"

dnsapi/dns_nsupdatey.sh

@@ -0,0 +1,113 @@
+#!/usr/bin/env sh
+
+
+# Update DNS via nsupdate with "-y" option
+# Based on dns_nsupdate.sh, which used with "-k" option
+#
+# Author: Vadim Kalinnikov <moose@ylsoftware.com>
+
+########  Public functions #####################
+
+#Usage: dns_nsupdatey_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_nsupdatey_add() {
+  fulldomain=$1
+  txtvalue=$2
+  NSUPDATE_Y_SERVER="${NSUPDATE_Y_SERVER:-$(_readaccountconf_mutable NSUPDATE_Y_SERVER)}"
+  NSUPDATE_Y_SERVER_PORT="${NSUPDATE_Y_SERVER_PORT:-$(_readaccountconf_mutable NSUPDATE_Y_SERVER_PORT)}"
+  NSUPDATE_Y_KEY="${NSUPDATE_Y_KEY:-$(_readaccountconf_mutable NSUPDATEY_KEY)}"
+  NSUPDATE_Y_ZONE="${NSUPDATE_Y_ZONE:-$(_readaccountconf_mutable NSUPDATE_Y_ZONE)}"
+
+  _checkKeyParam || return 1
+
+  # save the dns server and key to the account conf file.
+  _saveaccountconf_mutable NSUPDATE_Y_SERVER "${NSUPDATE_Y_SERVER}"
+  _saveaccountconf_mutable NSUPDATE_Y_SERVER_PORT "${NSUPDATE_Y_SERVER_PORT}"
+  _saveaccountconf_mutable NSUPDATE_Y_KEY "${NSUPDATE_Y_KEY}"
+  _saveaccountconf_mutable NSUPDATE_Y_ZONE "${NSUPDATE_Y_ZONE}"
+
+  [ -n "${NSUPDATE_Y_SERVER}" ] || NSUPDATE_SERVER="localhost"
+  [ -n "${NSUPDATE_Y_SERVER_PORT}" ] || NSUPDATE_SERVER_PORT=53
+
+  _info "adding ${fulldomain}. 60 in txt \"${txtvalue}\""
+  [ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_1" ] && nsdebug="-d"
+  [ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_2" ] && nsdebug="-D"
+  if [ -z "${NSUPDATE_Y_ZONE}" ]; then
+    nsupdate -y "${NSUPDATE_Y_KEY}" $nsdebug <<EOF
+server ${NSUPDATE_Y_SERVER}  ${NSUPDATE_Y_SERVER_PORT}
+update add ${fulldomain}. 60 in txt "${txtvalue}"
+send
+EOF
+  else
+    nsupdate -y "${NSUPDATE_Y_KEY}" $nsdebug <<EOF
+server ${NSUPDATE_Y_SERVER}  ${NSUPDATE_Y_SERVER_PORT}
+zone ${NSUPDATE_Y_ZONE}.
+update add ${fulldomain}. 60 in txt "${txtvalue}"
+send
+EOF
+  fi
+  if [ $? -ne 0 ]; then
+    _err "error updating domain"
+    return 1
+  fi
+
+  return 0
+}
+
+#Usage: dns_nsupdate_rm   _acme-challenge.www.domain.com
+dns_nsupdatey_rm() {
+  fulldomain=$1
+
+  NSUPDATE_Y_SERVER="${NSUPDATE_Y_SERVER:-$(_readaccountconf_mutable NSUPDATE_Y_SERVER)}"
+  NSUPDATE_Y_SERVER_PORT="${NSUPDATE_Y_SERVER_PORT:-$(_readaccountconf_mutable NSUPDATE_Y_SERVER_PORT)}"
+  NSUPDATE_Y_KEY="${NSUPDATE_Y_KEY:-$(_readaccountconf_mutable NSUPDATE_Y_KEY)}"
+  NSUPDATE_Y_ZONE="${NSUPDATE_Y_ZONE:-$(_readaccountconf_mutable NSUPDATE_Y_ZONE)}"
+
+  _checkKeyParam || return 1
+  [ -n "${NSUPDATE_Y_SERVER}" ] || NSUPDATE_Y_SERVER="localhost"
+  [ -n "${NSUPDATE_Y_SERVER_PORT}" ] || NSUPDATE_Y_SERVER_PORT=53
+  _info "removing ${fulldomain}. txt"
+  [ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_1" ] && nsdebug="-d"
+  [ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_2" ] && nsdebug="-D"
+  if [ -z "${NSUPDATE_Y_ZONE}" ]; then
+    nsupdate -y "${NSUPDATE_Y_KEY}" $nsdebug <<EOF
+server ${NSUPDATE_Y_SERVER}  ${NSUPDATE_Y_SERVER_PORT}
+update delete ${fulldomain}. txt
+send
+EOF
+  else
+    nsupdate -y "${NSUPDATE_Y_KEY}" $nsdebug <<EOF
+server ${NSUPDATE_Y_SERVER}  ${NSUPDATE_Y_SERVER_PORT}
+zone ${NSUPDATE_Y_ZONE}.
+update delete ${fulldomain}. txt
+send
+EOF
+  fi
+  if [ $? -ne 0 ]; then
+    _err "error updating domain"
+    return 1
+  fi
+
+  return 0
+}
+
+####################  Private functions below ##################################
+
+_checkKeyParam() {
+  if [ -z "${NSUPDATE_Y_KEY}" ]; then
+    _err "you must specify a key in format: name:key"
+    return 1
+  fi
+
+  key_name=${NSUPDATE_Y_KEY%%:*}
+  key_value=${NSUPDATE_Y_KEY#*:}
+
+  if [ -z "${key_name}" ]; then
+    _err "Bad key name!"
+    return 1
+  fi
+
+  if [ -z "${key_value}" ]; then
+    _err "Bad key value!"
+    return 1
+  fi
+}