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109 lines
3.6 KiB
109 lines
3.6 KiB
#!/usr/bin/env sh
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# shellcheck disable=SC2034
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dns_nsupdate_info='nsupdate RFC 2136 DynDNS client
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Site: bind9.readthedocs.io/en/v9.18.19/manpages.html#nsupdate-dynamic-dns-update-utility
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Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_nsupdate
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Options:
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NSUPDATE_SERVER Server hostname. Default: "localhost".
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NSUPDATE_SERVER_PORT Server port. Default: "53".
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NSUPDATE_KEY File path to TSIG key.
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NSUPDATE_ZONE Domain zone to update. Optional.
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'
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######## Public functions #####################
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#Usage: dns_nsupdate_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
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dns_nsupdate_add() {
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fulldomain=$1
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txtvalue=$2
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NSUPDATE_SERVER="${NSUPDATE_SERVER:-$(_readaccountconf_mutable NSUPDATE_SERVER)}"
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NSUPDATE_SERVER_PORT="${NSUPDATE_SERVER_PORT:-$(_readaccountconf_mutable NSUPDATE_SERVER_PORT)}"
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NSUPDATE_KEY="${NSUPDATE_KEY:-$(_readaccountconf_mutable NSUPDATE_KEY)}"
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NSUPDATE_ZONE="${NSUPDATE_ZONE:-$(_readaccountconf_mutable NSUPDATE_ZONE)}"
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_checkKeyFile || return 1
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# save the dns server and key to the account conf file.
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_saveaccountconf_mutable NSUPDATE_SERVER "${NSUPDATE_SERVER}"
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_saveaccountconf_mutable NSUPDATE_SERVER_PORT "${NSUPDATE_SERVER_PORT}"
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_saveaccountconf_mutable NSUPDATE_KEY "${NSUPDATE_KEY}"
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_saveaccountconf_mutable NSUPDATE_ZONE "${NSUPDATE_ZONE}"
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[ -n "${NSUPDATE_SERVER}" ] || NSUPDATE_SERVER="localhost"
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[ -n "${NSUPDATE_SERVER_PORT}" ] || NSUPDATE_SERVER_PORT=53
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_info "adding ${fulldomain}. 60 in txt \"${txtvalue}\""
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[ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_1" ] && nsdebug="-d"
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[ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_2" ] && nsdebug="-D"
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if [ -z "${NSUPDATE_ZONE}" ]; then
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nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
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server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
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update add ${fulldomain}. 60 in txt "${txtvalue}"
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send
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EOF
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else
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nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
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server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
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zone ${NSUPDATE_ZONE}.
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update add ${fulldomain}. 60 in txt "${txtvalue}"
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send
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EOF
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fi
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if [ $? -ne 0 ]; then
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_err "error updating domain"
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return 1
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fi
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return 0
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}
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#Usage: dns_nsupdate_rm _acme-challenge.www.domain.com
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dns_nsupdate_rm() {
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fulldomain=$1
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NSUPDATE_SERVER="${NSUPDATE_SERVER:-$(_readaccountconf_mutable NSUPDATE_SERVER)}"
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NSUPDATE_SERVER_PORT="${NSUPDATE_SERVER_PORT:-$(_readaccountconf_mutable NSUPDATE_SERVER_PORT)}"
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NSUPDATE_KEY="${NSUPDATE_KEY:-$(_readaccountconf_mutable NSUPDATE_KEY)}"
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NSUPDATE_ZONE="${NSUPDATE_ZONE:-$(_readaccountconf_mutable NSUPDATE_ZONE)}"
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_checkKeyFile || return 1
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[ -n "${NSUPDATE_SERVER}" ] || NSUPDATE_SERVER="localhost"
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[ -n "${NSUPDATE_SERVER_PORT}" ] || NSUPDATE_SERVER_PORT=53
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_info "removing ${fulldomain}. txt"
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[ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_1" ] && nsdebug="-d"
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[ -n "$DEBUG" ] && [ "$DEBUG" -ge "$DEBUG_LEVEL_2" ] && nsdebug="-D"
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if [ -z "${NSUPDATE_ZONE}" ]; then
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nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
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server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
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update delete ${fulldomain}. txt
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send
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EOF
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else
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nsupdate -k "${NSUPDATE_KEY}" $nsdebug <<EOF
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server ${NSUPDATE_SERVER} ${NSUPDATE_SERVER_PORT}
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zone ${NSUPDATE_ZONE}.
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update delete ${fulldomain}. txt
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send
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EOF
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fi
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if [ $? -ne 0 ]; then
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_err "error updating domain"
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return 1
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fi
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return 0
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}
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#################### Private functions below ##################################
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_checkKeyFile() {
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if [ -z "${NSUPDATE_KEY}" ]; then
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_err "you must specify a path to the nsupdate key file"
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return 1
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fi
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if [ ! -r "${NSUPDATE_KEY}" ]; then
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_err "key ${NSUPDATE_KEY} is unreadable"
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return 1
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fi
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}
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