From 3bb97b81ded2d7528cd432d2219df69af5de2870 Mon Sep 17 00:00:00 2001 From: James Qian Date: Thu, 14 Mar 2019 13:26:58 +0800 Subject: [PATCH] dnsapi: add deSEC.io api support Signed-off-by: James Qian --- dnsapi/dns_desec.sh | 204 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 dnsapi/dns_desec.sh diff --git a/dnsapi/dns_desec.sh b/dnsapi/dns_desec.sh new file mode 100644 index 00000000..6488b7fb --- /dev/null +++ b/dnsapi/dns_desec.sh @@ -0,0 +1,204 @@ +#!/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 "$DEDYN_NAME" ]; then + DEDYN_TOKEN="" + DEDYN_NAME="" + _err "You don't specify DEDYN_TOKEN and DEDYN_NAME yet." + _err "Please create you key and try again." + _err "e.g." + _err "export DEDYN_TOKEN=d41d8cd98f00b204e9800998ecf8427e" + _err "export DEDYN_NAME=foobar.dedyn.io" + return 1 + fi + #save the api token and name to the account conf file. + _saveaccountconf_mutable DEDYN_TOKEN "$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\":60}]" + + 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 "$DEDYN_NAME" ]; then + DEDYN_TOKEN="" + DEDYN_NAME="" + _err "You don't specify DEDYN_TOKEN and DEDYN_NAME yet." + _err "Please create you key and try again." + _err "e.g." + _err "export DEDYN_TOKEN=d41d8cd98f00b204e9800998ecf8427e" + _err "export DEDYN_NAME=foobar.dedyn.io" + return 1 + fi + + _debug "First detect the root zone" + if ! _get_root "$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 +}