You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

108 lines
3.6 KiB

#!/usr/bin/env sh
# shellcheck disable=SC2034
dns_nsupdate_info='nsupdate RFC 2136 DynDNS client
Site: bind9.readthedocs.io/en/v9.18.19/manpages.html#nsupdate-dynamic-dns-update-utility
Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_nsupdate
Options:
NSUPDATE_SERVER Server hostname. Default: "localhost".
NSUPDATE_SERVER_PORT Server port. Default: "53".
NSUPDATE_KEY File path to TSIG key.
NSUPDATE_ZONE Domain zone to update. Optional.
'
######## Public functions #####################
#Usage: dns_nsupdate_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_nsupdate_add() {
fulldomain=$1
txtvalue=$2
NSUPDATE_SERVER="${NSUPDATE_SERVER:-$(_readaccountconf_mutable NSUPDATE_SERVER)}"
NSUPDATE_SERVER_PORT="${NSUPDATE_SERVER_PORT:-$(_readaccountconf_mutable NSUPDATE_SERVER_PORT)}"
NSUPDATE_KEY="${NSUPDATE_KEY:-$(_readaccountconf_mutable NSUPDATE_KEY)}"
NSUPDATE_ZONE="${NSUPDATE_ZONE:-$(_readaccountconf_mutable NSUPDATE_ZONE)}"
_checkKeyFile || return 1
# save the dns server and key to the account conf file.
_saveaccountconf_mutable NSUPDATE_SERVER "${NSUPDATE_SERVER}"
_saveaccountconf_mutable NSUPDATE_SERVER_PORT "${NSUPDATE_SERVER_PORT}"
_saveaccountconf_mutable NSUPDATE_KEY "${NSUPDATE_KEY}"
_saveaccountconf_mutable NSUPDATE_ZONE "${NSUPDATE_ZONE}"
[ -n "${NSUPDATE_SERVER}" ] || NSUPDATE_SERVER="localhost"
[ -n "${NSUPDATE_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 "${NSUPDATE_ZONE}" ]; then
nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
update add ${fulldomain}. 60 in txt "${txtvalue}"
send
EOF
else
nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
zone ${NSUPDATE_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_nsupdate_rm() {
fulldomain=$1
NSUPDATE_SERVER="${NSUPDATE_SERVER:-$(_readaccountconf_mutable NSUPDATE_SERVER)}"
NSUPDATE_SERVER_PORT="${NSUPDATE_SERVER_PORT:-$(_readaccountconf_mutable NSUPDATE_SERVER_PORT)}"
NSUPDATE_KEY="${NSUPDATE_KEY:-$(_readaccountconf_mutable NSUPDATE_KEY)}"
NSUPDATE_ZONE="${NSUPDATE_ZONE:-$(_readaccountconf_mutable NSUPDATE_ZONE)}"
_checkKeyFile || return 1
[ -n "${NSUPDATE_SERVER}" ] || NSUPDATE_SERVER="localhost"
[ -n "${NSUPDATE_SERVER_PORT}" ] || NSUPDATE_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_ZONE}" ]; then
nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
update delete ${fulldomain}. txt
send
EOF
else
nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
zone ${NSUPDATE_ZONE}.
update delete ${fulldomain}. txt
send
EOF
fi
if [ $? -ne 0 ]; then
_err "error updating domain"
return 1
fi
return 0
}
#################### Private functions below ##################################
_checkKeyFile() {
if [ -z "${NSUPDATE_KEY}" ]; then
_err "you must specify a path to the nsupdate key file"
return 1
fi
if [ ! -r "${NSUPDATE_KEY}" ]; then
_err "key ${NSUPDATE_KEY} is unreadable"
return 1
fi
}