From f988b3e8c35d8872c0dc87f339a0d53373fc5996 Mon Sep 17 00:00:00 2001
From: Attie Grande <attie@attie.co.uk>
Date: Wed, 6 Apr 2022 23:04:04 +0100
Subject: [PATCH] add support for bind9

---
 scripts/create-bind9.sh | 85 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100755 scripts/create-bind9.sh

diff --git a/scripts/create-bind9.sh b/scripts/create-bind9.sh
new file mode 100755
index 0000000..fddc9a7
--- /dev/null
+++ b/scripts/create-bind9.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+basedir=".."
+outputdir="output/bind9"
+path="${basedir}/cache_domains.json"
+
+export IFS=' '
+
+test=$(which jq);
+out=$?
+if [ $out -gt 0 ] ; then
+	echo "This script requires jq to be installed."
+	echo "Your package manager should be able to find it"
+	exit 1
+fi
+
+cachenamedefault="disabled"
+
+while read line; do 
+	ip=$(jq ".ips[\"${line}\"]" config.json)
+	declare "cacheip$line"="$ip"
+done <<< $(jq -r '.ips | to_entries[] | .key' config.json)
+
+while read line; do 
+	name=$(jq -r ".cache_domains[\"${line}\"]" config.json)
+	declare "cachename$line"="$name"
+done <<< $(jq -r '.cache_domains | to_entries[] | .key' config.json)
+
+rm -rf ${outputdir}
+mkdir -p ${outputdir}
+
+outputfile=${outputdir}/db.rpz
+
+cat <<"EOF" >${outputfile}
+;
+; BIND response policy zone
+;
+$TTL 60
+@   IN  SOA localhost.  root.localhost. (
+                  1     ; Serial
+                 60     ; Refresh
+                 60     ; Retry
+            2419200     ; Expire
+             604800 )   ; Negative Cache TTL
+;
+@   IN  NS  localhost.
+;
+EOF
+
+while read entry; do 
+	unset cacheip
+	unset cachename
+	key=$(jq -r ".cache_domains[$entry].name" $path)
+	cachename="cachename${key}"
+	if [ -z "${!cachename}" ]; then
+		cachename="cachenamedefault"
+	fi
+	if [[ ${!cachename} == "disabled" ]]; then
+		continue;
+	fi
+	cacheipname="cacheip${!cachename}"
+	cacheip=$(jq -r 'if type == "array" then .[] else . end' <<< ${!cacheipname} | xargs)
+
+	echo "; ${key}" >> ${outputfile}
+	while read fileid; do
+		while read filename; do
+			#echo "${basedir}/$filename"
+			while read fileentry; do
+				# Ignore comments and newlines
+				if [[ $fileentry == \#* ]] || [[ -z $fileentry ]]; then
+					continue
+				fi
+				for i in ${cacheip}; do
+					echo "${fileentry} A ${i}" >> ${outputfile}
+				done
+			done <<< $(cat ${basedir}/$filename | sort);
+		done <<< $(jq -r ".cache_domains[$entry].domain_files[$fileid]" $path)
+	done <<< $(jq -r ".cache_domains[$entry].domain_files | to_entries[] | .key" $path)
+done <<< $(jq -r '.cache_domains | to_entries[] | .key' $path)
+
+cat << EOF
+Configuration generation completed.
+
+Please copy the following files, and enable Response Policy Zone
+- ./${outputdir}/db.rpz
+EOF