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

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Vadim Kalinnikov 2022-05-14 02:50:29 +03:00
parent 2fa42765e3
commit dae76dba02
1 changed files with 113 additions and 0 deletions
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dnsapi/dns_nsupdatey.sh Executable file
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#!/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
}