acme.sh/dnsapi/dns_nsupdate.sh
Marcel Waldvogel 16e6a55d4b Configurationless nsupdate -l-like mode
When `nsupdate -l` works, `-dnsapi nsupdate` requires no further
configuration. It does not use `nsupdate -l` (would imply more code
and more code changes), but points `nsupdate -k` at the key which
would be used by `nsupdate -l`.
2017-07-19 11:25:52 +02:00

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#!/usr/bin/env sh
######## Public functions #####################
#Usage: dns_nsupdate_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_nsupdate_add() {
fulldomain=$1
txtvalue=$2
_checkKeyFile || return 1
# save the dns server and key to the account conf file.
_saveaccountconf NSUPDATE_SERVER "${NSUPDATE_SERVER}"
_saveaccountconf NSUPDATE_KEY "${NSUPDATE_KEY}"
_info "adding ${fulldomain}. 60 in txt \"${txtvalue}\""
nsupdate -k "${NSUPDATE_KEY}" <<EOF
server ${NSUPDATE_SERVER}
update add ${fulldomain}. 60 in txt "${txtvalue}"
send
EOF
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
_checkKeyFile || return 1
_info "removing ${fulldomain}. txt"
nsupdate -k "${NSUPDATE_KEY}" <<EOF
server ${NSUPDATE_SERVER}
update delete ${fulldomain}. txt
send
EOF
if [ $? -ne 0 ]; then
_err "error updating domain"
return 1
fi
return 0
}
#################### Private functions below ##################################
_checkKeyFile() {
[ -n "${NSUPDATE_SERVER}" ] || NSUPDATE_SERVER="localhost"
if [ "${NSUPDATE_SERVER}" = "localhost" -a -z "${NSUPDATE_KEY}" ]; then
NSUPDATE_KEY=/var/run/named/session.key
fi
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
}