Current File : //data/old/opt/pihole/wildcard_regex_converter.sh
#!/bin/bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# Provides an automated migration subroutine to convert Pi-hole v3.x wildcard domains to Pi-hole v4.x regex filters
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
# regexFile set in gravity.sh
wildcardFile="/etc/dnsmasq.d/03-pihole-wildcard.conf"
convert_wildcard_to_regex() {
if [ ! -f "${wildcardFile}" ]; then
return
fi
local addrlines domains uniquedomains
# Obtain wildcard domains from old file
addrlines="$(grep -oE "/.*/" ${wildcardFile})"
# Strip "/" from domain names and convert "." to regex-compatible "\."
domains="$(sed 's/\///g;s/\./\\./g' <<< "${addrlines}")"
# Remove repeated domains (may have been inserted two times due to A and AAAA blocking)
uniquedomains="$(uniq <<< "${domains}")"
# Automatically generate regex filters and remove old wildcards file
awk '{print "(^|\\.)"$0"$"}' <<< "${uniquedomains}" >> "${regexFile:?}" && rm "${wildcardFile}"
}
Mini Shell