acme.sh/dnsapi/dns_desec.sh
2020-11-12 22:04:05 +01:00

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#!/usr/bin/env sh
#
# deSEC.io Domain API
#
# Author: Zheng Qian
#
# deSEC API doc
# https://desec.readthedocs.io/en/latest/
REST_API="https://desec.io/api/v1/domains"
######## Public functions #####################
#Usage: dns_desec_add _acme-challenge.foobar.dedyn.io "d41d8cd98f00b204e9800998ecf8427e"
dns_desec_add() {
fulldomain=$1
txtvalue=$2
_info "Using desec.io api"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
DEDYN_TOKEN="${DEDYN_TOKEN:-$(_readaccountconf_mutable DEDYN_TOKEN)}"
DEDYN_NAME="${DEDYN_NAME:-$(_readaccountconf_mutable DEDYN_NAME)}"
if [ -z "$DEDYN_TOKEN" ] || [ -z "$DEDYN_NAME" ]; then
DEDYN_TOKEN=""
DEDYN_NAME=""
_err "You did not specify DEDYN_TOKEN and DEDYN_NAME yet."
_err "Please create your key and try again."
_err "e.g."
_err "export DEDYN_TOKEN=d41d8cd98f00b204e9800998ecf8427e"
_err "export DEDYN_NAME=foobar.dedyn.io"
return 1
fi
#save the api token and name to the account conf file.
_saveaccountconf_mutable DEDYN_TOKEN "$DEDYN_TOKEN"
_saveaccountconf_mutable DEDYN_NAME "$DEDYN_NAME"
_debug "First detect the root zone"
if ! _get_root "$fulldomain" "$REST_API/"; then
_err "invalid domain"
return 1
fi
_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"
# Get existing TXT record
_debug "Getting txt records"
txtvalues="\"\\\"$txtvalue\\\"\""
_desec_rest GET "$REST_API/$DEDYN_NAME/rrsets/$_sub_domain/TXT/"
if [ "$_code" = "200" ]; then
oldtxtvalues="$(echo "$response" | _egrep_o "\"records\":\\[\"\\S*\"\\]" | cut -d : -f 2 | tr -d "[]\\\\\"" | sed "s/,/ /g")"
_debug "existing TXT found"
_debug oldtxtvalues "$oldtxtvalues"
if [ -n "$oldtxtvalues" ]; then
for oldtxtvalue in $oldtxtvalues; do
txtvalues="$txtvalues, \"\\\"$oldtxtvalue\\\"\""
done
fi
fi
_debug txtvalues "$txtvalues"
_info "Adding record"
body="[{\"subname\":\"$_sub_domain\", \"type\":\"TXT\", \"records\":[$txtvalues], \"ttl\":3600}]"
if _desec_rest PUT "$REST_API/$DEDYN_NAME/rrsets/" "$body"; then
if _contains "$response" "$txtvalue"; then
_info "Added, OK"
return 0
else
_err "Add txt record error."
return 1
fi
fi
_err "Add txt record error."
return 1
}
#Usage: fulldomain txtvalue
#Remove the txt record after validation.
dns_desec_rm() {
fulldomain=$1
txtvalue=$2
_info "Using desec.io api"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
DEDYN_TOKEN="${DEDYN_TOKEN:-$(_readaccountconf_mutable DEDYN_TOKEN)}"
DEDYN_NAME="${DEDYN_NAME:-$(_readaccountconf_mutable DEDYN_NAME)}"
if [ -z "$DEDYN_TOKEN" ] || [ -z "$DEDYN_NAME" ]; then
DEDYN_TOKEN=""
DEDYN_NAME=""
_err "You did not specify DEDYN_TOKEN and DEDYN_NAME yet."
_err "Please create your key and try again."
_err "e.g."
_err "export DEDYN_TOKEN=d41d8cd98f00b204e9800998ecf8427e"
_err "export DEDYN_NAME=foobar.dedyn.io"
return 1
fi
_debug "First detect the root zone"
if ! _get_root "$fulldomain" "$REST_API/"; then
_err "invalid domain"
return 1
fi
_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"
# Get existing TXT record
_debug "Getting txt records"
txtvalues=""
_desec_rest GET "$REST_API/$DEDYN_NAME/rrsets/$_sub_domain/TXT/"
if [ "$_code" = "200" ]; then
oldtxtvalues="$(echo "$response" | _egrep_o "\"records\":\\[\"\\S*\"\\]" | cut -d : -f 2 | tr -d "[]\\\\\"" | sed "s/,/ /g")"
_debug "existing TXT found"
_debug oldtxtvalues "$oldtxtvalues"
if [ -n "$oldtxtvalues" ]; then
for oldtxtvalue in $oldtxtvalues; do
if [ "$txtvalue" != "$oldtxtvalue" ]; then
txtvalues="$txtvalues, \"\\\"$oldtxtvalue\\\"\""
fi
done
fi
fi
txtvalues="$(echo "$txtvalues" | cut -c3-)"
_debug txtvalues "$txtvalues"
_info "Deleting record"
body="[{\"subname\":\"$_sub_domain\", \"type\":\"TXT\", \"records\":[$txtvalues], \"ttl\":60}]"
_desec_rest PUT "$REST_API/$DEDYN_NAME/rrsets/" "$body"
if [ "$_code" = "200" ]; then
_info "Deleted, OK"
return 0
fi
_err "Delete txt record error."
return 1
}
#################### Private functions below ##################################
_desec_rest() {
m="$1"
ep="$2"
data="$3"
export _H1="Authorization: Token $DEDYN_TOKEN"
export _H2="Accept: application/json"
export _H3="Content-Type: application/json"
if [ "$m" != "GET" ]; then
_secure_debug2 data "$data"
response="$(_post "$data" "$ep" "" "$m")"
else
response="$(_get "$ep")"
fi
_ret="$?"
_code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
_debug "http response code $_code"
_secure_debug2 response "$response"
if [ "$_ret" != "0" ]; then
_err "error $ep"
return 1
fi
response="$(printf "%s" "$response" | _normalizeJson)"
return 0
}
#_acme-challenge.www.domain.com
#returns
# _sub_domain=_acme-challenge.www
# _domain=domain.com
_get_root() {
domain="$1"
ep="$2"
i=2
p=1
while true; do
h=$(printf "%s" "$domain" | cut -d . -f $i-100)
_debug h "$h"
if [ -z "$h" ]; then
#not valid
return 1
fi
if ! _desec_rest GET "$ep"; then
return 1
fi
if _contains "$response" "\"name\":\"$h\"" >/dev/null; then
_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
_domain=$h
return 0
fi
p=$i
i=$(_math "$i" + 1)
done
return 1
}