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#!/usr/bin/env sh
#
#Author: Wolfgang Ebner
#Author: Sven Neubuaer
#Report Bugs here: https://github.com/dampfklon/acme.sh
#
# Usage:
# export ACMEDNS_BASE_URL="https://auth.acme-dns.io"
#
# You can optionally define an already existing account:
#
# replace . in domain with _
# export ACMEDNS_USERNAME_$domain="<username>"
# export ACMEDNS_PASSWORD_$domain="<password>"
# export ACMEDNS_SUBDOMAIN_$domain="<subdomain>"
#
######## Public functions #####################
_root_domain() {
d=$1
cache='/tmp/dns_suffix.cache'
expiry='yesterday'
suffix_url='https://publicsuffix.org/list/public_suffix_list.dat'
[[ -s "${cache}" ]] || echo -n '' > "${cache}" # (re-)create empty cache
[[ $(stat -c '%Y' "${cache}") -lt $(date +%s -d "${expiry}") ]] && echo -n '' > "${cache}" # purge old cache
{
[[ -s "${cache}" ]] && cat "${cache}" # load from cache
[[ -s "${cache}" ]] || { # save to cache
curl -so- "${suffix_url}" | # fetch from $suffix_url
sed 's/[#\/].*$//' | # strip comments
sed 's/[*][.]//' | # strip wildcard suffixes, like '*.nom.br'
sed '/^[\t ]*$/d' | # delete blank lines
tr 'A-Z' 'a-z' | # everything lowercase
awk '{print length, $0}' | # prepend length of each line to each line
sort -n -r | # sort longest-line-first
sed 's/^[0-9\t ]*//' | # strip line length
tee "${cache}" # load into cache, and send to stdout
}
} |
grep -E "${d/*./}$" | # optimisation - only include matching TLDs
while read suffix
do
echo "${d}" | grep -qE '[.]'"${suffix}"'$' || continue # if $domain does not end in .$suffix, get next suffix
c=$(echo $d | awk -F'.' '{ print NF }')
s=$(echo $suffix | awk -F'.' '{ print NF }')
i=$((c-s))
echo $(echo $d | cut -d . -f $i-100)
break # stop processing
done
}
#Usage: dns_acmedns_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
# Used to add txt record
dns_acmedns_add() {
fulldomain=$1
d=$(_root_domain $fulldomain)
h="${d//./_}"
txtvalue=$2
_info "Using acme-dns"
_debug "fulldomain $fulldomain"
_debug "domain $d"
_debug "$h"
_debug "txtvalue $txtvalue"
#for compatiblity from account conf
ACMEDNS_USERNAME="ACMEDNS_USERNAME_$h"
export ACMEDNS_USERNAME_$h="${!ACMEDNS_USERNAME:-$(_readaccountconf_mutable ACMEDNS_USERNAME)}"
_clearaccountconf_mutable $ACMEDNS_USERNAME
ACMEDNS_PASSWORD="ACMEDNS_PASSWORD_$h"
export ACMEDNS_PASSWORD_$h="${!ACMEDNS_PASSWORD:-$(_readaccountconf_mutable ACMEDNS_PASSWORD)}"
_clearaccountconf_mutable $ACMEDNS_PASSWORD
ACMEDNS_SUBDOMAIN="ACMEDNS_SUBDOMAIN_$h"
export ACMEDNS_SUBDOMAIN_$h="${!ACMEDNS_SUBDOMAIN:-$(_readaccountconf_mutable ACMEDNS_SUBDOMAIN)}"
_clearaccountconf_mutable $ACMEDNS_SUBDOMAIN
ACMEDNS_BASE_URL="${ACMEDNS_BASE_URL:-$(_readdomainconf ACMEDNS_BASE_URL)}"
export ACMEDNS_USERNAME_$h="${!ACMEDNS_USERNAME:-$(_readdomainconf ACMEDNS_USERNAME)}"
export ACMEDNS_PASSWORD_$h="${!ACMEDNS_PASSWORD:-$(_readdomainconf ACMEDNS_PASSWORD)}"
export ACMEDNS_SUBDOMAIN_$h="${!ACMEDNS_SUBDOMAIN:-$(_readdomainconf ACMEDNS_SUBDOMAIN)}"
if [ "$ACMEDNS_BASE_URL" = "" ]; then
ACMEDNS_BASE_URL="https://auth.acme-dns.io"
fi
ACMEDNS_UPDATE_URL="$ACMEDNS_BASE_URL/update"
ACMEDNS_REGISTER_URL="$ACMEDNS_BASE_URL/register"
if [ -z "${!ACMEDNS_USERNAME}" ] || [ -z "${!ACMEDNS_PASSWORD}" ]; then
response="$(_post "" "$ACMEDNS_REGISTER_URL" "" "POST")"
_debug response "$response"
export ACMEDNS_USERNAME_$h=$(echo "$response" | sed -n 's/^{.*\"username\":[ ]*\"\([^\"]*\)\".*}/\1/p')
_debug "received username: ${!ACMEDNS_USERNAME}"
export ACMEDNS_PASSWORD_$h=$(echo "$response" | sed -n 's/^{.*\"password\":[ ]*\"\([^\"]*\)\".*}/\1/p')
_debug "received password: ${!ACMEDNS_PASSWORD}"
export ACMEDNS_SUBDOMAIN_$h=$(echo "$response" | sed -n 's/^{.*\"subdomain\":[ ]*\"\([^\"]*\)\".*}/\1/p')
_debug "received subdomain: ${!ACMEDNS_SUBDOMAIN}"
ACMEDNS_FULLDOMAIN="ACMEDNS_FULLDOMAIN_$h"
export ACMEDNS_FULLDOMAIN_$h=$(echo "$response" | sed -n 's/^{.*\"fulldomain\":[ ]*\"\([^\"]*\)\".*}/\1/p')
_info "##########################################################"
_info "# Create $fulldomain CNAME ${!ACMEDNS_FULLDOMAIN} DNS entry #"
_info "##########################################################"
_info "Press enter to continue... "
read -r _
fi
_savedomainconf ACMEDNS_BASE_URL "$ACMEDNS_BASE_URL"
_savedomainconf $ACMEDNS_USERNAME "${!ACMEDNS_USERNAME}"
_savedomainconf $ACMEDNS_PASSWORD "${!ACMEDNS_PASSWORD}"
_savedomainconf $ACMEDNS_SUBDOMAIN "${!ACMEDNS_SUBDOMAIN}"
export _H1="X-Api-User: ${!ACMEDNS_USERNAME}"
export _H2="X-Api-Key: ${!ACMEDNS_PASSWORD}"
data="{\"subdomain\":\"${!ACMEDNS_SUBDOMAIN}\", \"txt\": \"$txtvalue\"}"
_debug data "$data"
response="$(_post "$data" "$ACMEDNS_UPDATE_URL" "" "POST")"
_debug response "$response"
if ! echo "$response" | grep "\"$txtvalue\"" >/dev/null; then
_err "invalid response of acme-dns"
return 1
fi
}
#Usage: fulldomain txtvalue
#Remove the txt record after validation.
dns_acmedns_rm() {
fulldomain=$1
txtvalue=$2
_info "Using acme-dns"
_debug "fulldomain $fulldomain"
_debug "txtvalue $txtvalue"
}
#################### Private functions below ##################################