yunohost/data/hooks/conf_regen/43-dnsmasq
2020-08-31 16:41:31 +02:00

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#!/bin/bash
set -e
. /usr/share/yunohost/helpers
do_pre_regen() {
pending_dir=$1
cd /usr/share/yunohost/templates/dnsmasq
# create directory for pending conf
dnsmasq_dir="${pending_dir}/etc/dnsmasq.d"
mkdir -p "$dnsmasq_dir"
etcdefault_dir="${pending_dir}/etc/default"
mkdir -p "$etcdefault_dir"
# add general conf files
cp plain/etcdefault ${pending_dir}/etc/default/dnsmasq
cp plain/dnsmasq.conf ${pending_dir}/etc/dnsmasq.conf
# add resolver file
cat plain/resolv.dnsmasq.conf | grep "^nameserver" | shuf > ${pending_dir}/etc/resolv.dnsmasq.conf
# retrieve variables
ipv4=$(curl -s -4 https://ip.yunohost.org 2>/dev/null || true)
ynh_validate_ip4 "$ipv4" || ipv4='127.0.0.1'
ipv6=$(curl -s -6 https://ip6.yunohost.org 2>/dev/null || true)
ynh_validate_ip6 "$ipv6" || ipv6=''
export ipv4
export ipv6
# add domain conf files
for domain in $YNH_DOMAINS; do
export domain
ynh_render_template "domain.tpl" "${dnsmasq_dir}/${domain}"
done
# remove old domain conf files
conf_files=$(ls -1 /etc/dnsmasq.d \
| awk '/^[^\.]+\.[^\.]+.*$/ { print $1 }')
for domain in $conf_files; do
[[ $YNH_DOMAINS =~ $domain ]] \
|| touch "${dnsmasq_dir}/${domain}"
done
}
do_post_regen() {
regen_conf_files=$1
# Fuck it, those domain/search entries from dhclient are usually annoying
# lying shit from the ISP trying to MiTM
if grep -q -E "^ *(domain|search)" /run/resolvconf/resolv.conf
then
if grep -q -E "^ *(domain|search)" /run/resolvconf/interface/*.dhclient 2>/dev/null
then
sed -E "s/^(domain|search)/#\1/g" -i /run/resolvconf/interface/*.dhclient
fi
grep -q '^supersede domain-name "";' /etc/dhcp/dhclient.conf 2>/dev/null || echo 'supersede domain-name "";' >> /etc/dhcp/dhclient.conf
grep -q '^supersede domain-search "";' /etc/dhcp/dhclient.conf 2>/dev/null || echo 'supersede domain-search "";' >> /etc/dhcp/dhclient.conf
grep -q '^supersede name "";' /etc/dhcp/dhclient.conf 2>/dev/null || echo 'supersede name "";' >> /etc/dhcp/dhclient.conf
systemctl restart resolvconf
fi
# Some stupid things like rabbitmq-server used by onlyoffice won't work if
# the *short* hostname doesn't exists in /etc/hosts -_-
short_hostname=$(hostname -s)
grep -q "127.0.0.1.*$short_hostname" /etc/hosts || echo -e "\n127.0.0.1\t$short_hostname" >>/etc/hosts
[[ -n "$regen_conf_files" ]] || return
# Remove / disable services likely to conflict with dnsmasq
for SERVICE in systemd-resolved bind9
do
systemctl is-enabled $SERVICE &>/dev/null && systemctl disable $SERVICE 2>/dev/null
systemctl is-active $SERVICE &>/dev/null && systemctl stop $SERVICE
done
systemctl restart dnsmasq
}
FORCE=${2:-0}
DRY_RUN=${3:-0}
case "$1" in
pre)
do_pre_regen $4
;;
post)
do_post_regen $4
;;
*)
echo "hook called with unknown argument \`$1'" >&2
exit 1
;;
esac
exit 0