truenas acmedns script

truenas_acmedns.sh

#!/bin/bash
# truenas-ACME-desec-authenticator

# Send POST request to e.g. https://auth.acme-dns.io/register to get your own credentials
# see https://github.com/joohoi/acme-dns for more details. You can run your own acmedns server.
ACMEDNS_API="https://auth.acme-dns.io"
ACMEDNS_USERNAME="XXXX"
ACMEDNS_PASSWORD="XXXX"
ACMEDNS_SUBDOMAIN="XXXX"

add_record() {
    _DOMAIN="${1}"
    _SUBDOMAIN="${2}"
    _TXT_VAL="${3}"

    echo "Adding TXT record to ${_SUBDOMAIN} (${ACMEDNS_SUBDOMAIN}) in ${_DOMAIN} (Value: ${_TXT_VAL})"

    curl -k -X POST "${ACMEDNS_API}/update" \
        --header "X-Api-User: ${ACMEDNS_USERNAME}" \
        --header "X-Api-Key: ${ACMEDNS_PASSWORD}" \
        --header "Content-Type: application/json" \
        --data "{\"subdomain\": \"${ACMEDNS_SUBDOMAIN}\", \"txt\": \"${_TXT_VAL}\"}"
}

del_record() {
    _DOMAIN="${1}"
    _SUBDOMAIN="${2}"
    _TXT_VAL="${3}"

    echo "Deleting TXT record from ${_SUBDOMAIN} (${ACMEDNS_SUBDOMAIN}) in ${_DOMAIN} (Value: ${_TXT_VAL})"
    echo "NOOP as there is no delete with acmedns currently"

    #curl -k -X POST "${ACMEDNS_API}/update" \
    #    --header "X-Api-User: ${ACMEDNS_USERNAME}" \
    #    --header "X-Api-Key: ${ACMEDNS_PASSWORD}" \
    #    --header "Content-Type: application/json" \
    #    --data "{\"subdomain\": \"${ACMEDNS_SUBDOMAIN}\", \"txt\": \"${_TXT_VAL}\"}"
}

if (( $# != 4 )); then
    echo "Wrong numbers of parameters"
    exit 1
fi

COMMAND="$1"
DOMAIN="$2"
SUBDOMAIN="$3"
TXT_VAL="$4"

if [ ! -z "$OVERRIDE_DOMAIN" ]; then
    echo "Override Domain (${OVERRIDE_DOMAIN}) set, using this instead of ${DOMAIN}"
    DOMAIN="${OVERRIDE_DOMAIN}"
    SUBDOMAIN=${SUBDOMAIN%%".$DOMAIN"}
fi

if [ "$COMMAND" == "set" ]; then
    add_record "${DOMAIN}" "${SUBDOMAIN}" "${TXT_VAL}"
elif [ "$COMMAND" == "unset" ]; then
    del_record "${DOMAIN}" "${SUBDOMAIN}" "${TXT_VAL}"
else
    echo "Unknown command: ${COMMAND}"
    exit 1
fi