From e8bcde31b778ecf1d3c880805b99c3caf322ccc2 Mon Sep 17 00:00:00 2001
From: Draevin Luke <contact@drae.vin>
Date: Tue, 4 Aug 2020 16:33:24 -0700
Subject: [PATCH] Add Netlify API support

---
 dnsapi/dns_netlify.sh | 160 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 dnsapi/dns_netlify.sh

diff --git a/dnsapi/dns_netlify.sh b/dnsapi/dns_netlify.sh
new file mode 100644
index 00000000..4da97f48
--- /dev/null
+++ b/dnsapi/dns_netlify.sh
@@ -0,0 +1,160 @@
+#!/usr/bin/env sh
+
+#NETLIFY_ACCESS_TOKEN="xxxx"
+
+NETLIFY_HOST="api.netlify.com/api/v1/"
+NETLIFY_URL="https://$NETLIFY_HOST"
+
+########  Public functions #####################
+
+#Usage: dns_myapi_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_netlify_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  NETLIFY_ACCESS_TOKEN="${NETLIFY_ACCESS_TOKEN:-$(_readaccountconf_mutable NETLIFY_ACCESS_TOKEN)}"
+
+  if [ -z "$NETLIFY_ACCESS_TOKEN" ]; then
+    NETLIFY_ACCESS_TOKEN=""
+    _err "Please specify your Netlify Access Token and try again."
+    return 1
+  fi
+
+  _info "Using Netlify"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+
+  _saveaccountconf_mutable NETLIFY_ACCESS_TOKEN "$NETLIFY_ACCESS_TOKEN"
+
+  if ! _get_root "$fulldomain" "$accesstoken"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  dnsRecordURI="dns_zones/$_domain_id/dns_records"
+
+  body="{\"type\":\"TXT\", \"hostname\":\"$_sub_domain\", \"value\":\"$txtvalue\", \"ttl\":\"10\"}"
+
+  _netlify_rest POST "$dnsRecordURI" "$body" "$NETLIFY_ACCESS_TOKEN"
+  _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
+  if [ "$_code" = "200" ] || [ "$_code" = '201' ]; then
+    _info "validation value added"
+    return 0
+  else
+    _err "error adding validation value ($_code)"
+    return 1
+  fi
+
+  _err "Not fully implemented!"
+  return 1
+}
+
+#Usage: dns_myapi_rm   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+#Remove the txt record after validation.
+dns_netlify_rm() {
+  _info "Using Netlify"
+  _debug txtdomain "$txtdomain"
+  _debug txt "$txt"
+
+  _saveaccountconf_mutable NETLIFY_ACCESS_TOKEN "$NETLIFY_ACCESS_TOKEN"
+
+  if ! _get_root "$txtdomain" "$accesstoken"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+  
+  dnsRecordURI="dns_zones/$_domain_id/dns_records"
+
+  _netlify_rest GET "$dnsRecordURI" "" "$NETLIFY_ACCESS_TOKEN"
+
+  _record_id=$(echo "$response" | _egrep_o "\"type\":\"TXT\",[^\}]*\"value\":\"$txt\"" | head -n 1 | _egrep_o "\"id\":\"[^\"\}]*\"" | cut -d : -f 2 | tr -d \" )
+  _debug _record_id "$_record_id"
+  if [ "$_record_id" ]; then
+    _netlify_rest DELETE "$dnsRecordURI/$_record_id" "" "$NETLIFY_ACCESS_TOKEN"
+    _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
+    if [ "$_code" = "200" ] || [ "$_code" = '204' ]; then
+      _info "validation value removed"
+      return 0
+    else
+      _err "error removing validation value ($_code)"
+      return 1
+    fi
+    return 0
+  fi
+  return 1
+}
+
+####################  Private functions below ##################################
+
+_get_root() {
+  domain=$1
+  accesstoken=$2
+  i=1
+  p=1
+
+  _netlify_rest GET "dns_zones" "" "$accesstoken"
+  
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug2 "Checking domain: $h"
+    if [ -z "$h" ]; then
+      #not valid
+      _err "Invalid domain"
+      return 1
+    fi
+
+    if _contains "$response" "\"name\":\"$h\"" >/dev/null; then
+      _domain_id=$(echo "$response" | _egrep_o "\"[^\"]*\",\"name\":\"$h" | cut -d , -f 1 | tr -d \" )
+      if [ "$_domain_id" ]; then
+        if [ "$i" = 1 ]; then
+          #create the record at the domain apex (@) if only the domain name was provided as --domain-alias
+          _sub_domain="@"
+        else
+          _sub_domain=$(echo "$domain" | cut -d . -f 1-$p)
+        fi
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_netlify_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  token_trimmed=$(echo "$NETLIFY_ACCESS_TOKEN" | tr -d '"')
+
+  export _H1="Content-Type: application/json"
+  export _H2="Authorization: Bearer $token_trimmed"
+
+  :>"$HTTP_HEADER"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$NETLIFY_URL$ep" "" "$m")"
+  else
+    response="$(_get "$NETLIFY_URL$ep")"
+  fi
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}
\ No newline at end of file