#!/usr/bin/env sh
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# MyDevil.net API (2019-02-03)
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#
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# MyDevil.net already supports automatic Let's Encrypt certificates,
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# except for wildcard domains.
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#
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# This script depends on `devil` command that MyDevil.net provides,
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# which means that it works only on server side.
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#
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# Author: Marcin Konicki <https://ahwayakchih.neoni.net>
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#
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######## Public functions #####################
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#Usage: dns_mydevil_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
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dns_mydevil_add() {
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fulldomain=$1
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txtvalue=$2
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domain=""
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if ! _exists "devil"; then
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_err "Could not find 'devil' command."
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return 1
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fi
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_info "Using mydevil"
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domain=$(mydevil_get_domain "$fulldomain")
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if [ -z "$domain" ]; then
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_err "Invalid domain name: could not find root domain of $fulldomain."
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return 1
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fi
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# No need to check if record name exists, `devil` always adds new record.
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# In worst case scenario, we end up with multiple identical records.
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_info "Adding $fulldomain record for domain $domain"
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if devil dns add "$domain" "$fulldomain" TXT "$txtvalue"; then
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_info "Successfully added TXT record, ready for validation."
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return 0
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else
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_err "Unable to add DNS record."
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return 1
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fi
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}
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#Usage: fulldomain txtvalue
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#Remove the txt record after validation.
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dns_mydevil_rm() {
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fulldomain=$1
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txtvalue=$2
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domain=""
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if ! _exists "devil"; then
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_err "Could not find 'devil' command."
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return 1
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fi
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_info "Using mydevil"
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domain=$(mydevil_get_domain "$fulldomain")
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if [ -z "$domain" ]; then
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_err "Invalid domain name: could not find root domain of $fulldomain."
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return 1
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fi
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# catch one or more numbers
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num='[0-9][0-9]*'
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# catch one or more whitespace
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w=$(printf '[\t ][\t ]*')
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# catch anything, except newline
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any='.*'
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# filter to make sure we do not delete other records
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validRecords="^${num}${w}${fulldomain}${w}TXT${w}${any}${txtvalue}$"
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for id in $(devil dns list "$domain" | tail -n+2 | grep "${validRecords}" | cut -w -s -f 1); do
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_info "Removing record $id from domain $domain"
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echo "y" | devil dns del "$domain" "$id" || _err "Could not remove DNS record."
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done
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}
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#################### Private functions below ##################################
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# Usage: domain=$(mydevil_get_domain "_acme-challenge.www.domain.com" || _err "Invalid domain name")
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# echo $domain
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mydevil_get_domain() {
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fulldomain=$1
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domain=""
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for domain in $(devil dns list | cut -w -s -f 1 | tail -n+2); do
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_debug "Checking domain: $domain"
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if _endswith "$fulldomain" "$domain"; then
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_debug "Fulldomain '$fulldomain' matches '$domain'"
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printf -- "%s" "$domain"
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return 0
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fi
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done
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return 1
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}
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