From 1c58913eeb54911457f289c32ed52f52e2b82f53 Mon Sep 17 00:00:00 2001
From: Jasper Zonneveld <jasper@swis.nl>
Date: Fri, 26 Mar 2021 14:59:13 +0100
Subject: [PATCH] Add Aurora DNS API

---
 dnsapi/dns_aurora.sh | 171 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 dnsapi/dns_aurora.sh

diff --git a/dnsapi/dns_aurora.sh b/dnsapi/dns_aurora.sh
new file mode 100644
index 00000000..00f44739
--- /dev/null
+++ b/dnsapi/dns_aurora.sh
@@ -0,0 +1,171 @@
+#!/usr/bin/env sh
+
+#
+#AURORA_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
+#
+#AURORA_Secret="sdfsdfsdfljlbjkljlkjsdfoiwje"
+
+AURORA_Api="https://api.auroradns.eu"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_aurora_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  AURORA_Key="${AURORA_Key:-$(_readaccountconf_mutable AURORA_Key)}"
+  AURORA_Secret="${AURORA_Secret:-$(_readaccountconf_mutable AURORA_Secret)}"
+
+  if [ -z "$AURORA_Key" ] || [ -z "$AURORA_Secret" ]; then
+    AURORA_Key=""
+    AURORA_Secret=""
+    _err "You didn't specify an Aurora api key and secret yet."
+    _err "You can get yours from here https://cp.pcextreme.nl/auroradns/users."
+    return 1
+  fi
+
+  #save the api key and secret to the account conf file.
+  _saveaccountconf_mutable AURORA_Key "$AURORA_Key"
+  _saveaccountconf_mutable AURORA_Secret "$AURORA_Secret"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Adding record"
+  if _aurora_rest POST "zones/$_domain_id/records" "{\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"content\":\"$txtvalue\",\"ttl\":300}"; then
+    if _contains "$response" "$txtvalue"; then
+      _info "Added, OK"
+      return 0
+    elif _contains "$response" "RecordExistsError"; then
+      _info "Already exists, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+
+}
+
+#fulldomain txtvalue
+dns_aurora_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  AURORA_Key="${AURORA_Key:-$(_readaccountconf_mutable AURORA_Key)}"
+  AURORA_Secret="${AURORA_Secret:-$(_readaccountconf_mutable AURORA_Secret)}"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _debug "Getting records"
+  _aurora_rest GET "zones/${_domain_id}/records"
+
+  if ! _contains "$response" "$txtvalue"; then
+    _info "Don't need to remove."
+  else
+    records=$(echo "$response" | _normalizeJson | tr -d "[]" | sed "s/},{/}|{/g" | tr "|" "\n")
+    if [ "$(echo "$records" | wc -l)" -le 2 ]; then
+      _err "Can not parse records."
+      return 1
+    fi
+    record_id=$(echo "$records" | grep "\"type\": *\"TXT\"" | grep "\"name\": *\"$_sub_domain\"" | grep "\"content\": *\"$txtvalue\"" | _egrep_o "\"id\": *\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
+    _debug "record_id" "$record_id"
+    if [ -z "$record_id" ]; then
+      _err "Can not get record id to remove."
+      return 1
+    fi
+    if ! _aurora_rest DELETE "zones/$_domain_id/records/$record_id"; then
+      _err "Delete record error."
+      return 1
+    fi
+  fi
+  return 0
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+  i=1
+  p=1
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    if ! _aurora_rest GET "zones/$h"; then
+      return 1
+    fi
+
+    if _contains "$response" "\"name\": \"$h\""; then
+      _domain_id=$(echo "$response" | _normalizeJson | tr -d "{}" | tr "," "\n" | grep "\"id\": *\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
+      _debug _domain_id "$_domain_id"
+      if [ "$_domain_id" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_aurora_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  key_trimmed=$(echo "$AURORA_Key" | tr -d '"')
+  secret_trimmed=$(echo "$AURORA_Secret" | tr -d '"')
+
+  timestamp=$(date -u +"%Y%m%dT%H%M%SZ")
+  signature=$(printf "%s/%s%s" "$m" "$ep" "$timestamp" | _hmac sha256 "$(printf "%s" "$secret_trimmed" | _hex_dump | tr -d " ")" | _base64)
+  authorization=$(printf "AuroraDNSv1 %s" "$(printf "%s:%s" "$key_trimmed" "$signature" | _base64)")
+
+  export _H1="Content-Type: application/json; charset=UTF-8"
+  export _H2="X-AuroraDNS-Date: $timestamp"
+  export _H3="Authorization: $authorization"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$AURORA_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$AURORA_Api/$ep")"
+  fi
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}