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linux-cloud-router/debian-package/debian/postrm
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#!/bin/sh
set -e
BEFORE_RULES=/etc/ufw/before.rules
# Remove the rule blocks this package inserted, together with the single blank
# line that precedes each one, so before.rules returns to its original content.
strip_ufw_blocks() {
[ -f "$BEFORE_RULES" ] || return 0
grep -q '^# ROUTER MSS RULES START$\|^# IPSEC RULES START$' "$BEFORE_RULES" || return 0
tmp="$(mktemp)"
awk '
/^# (IPSEC|WIREGUARD|OPENVPN|P2S DNS|WEB|BOOTSTRAP|MANAGER|HTTPS|METRICS|ROUTER FORWARD|ROUTER NAT|ROUTER MSS) RULES START$/ {
skip = 1; pending = 0; next
}
/^# (IPSEC|WIREGUARD|OPENVPN|P2S DNS|WEB|BOOTSTRAP|MANAGER|HTTPS|METRICS|ROUTER FORWARD|ROUTER NAT|ROUTER MSS) RULES END$/ {
skip = 0; next
}
skip { next }
/^$/ { pending++; next }
{
while (pending > 0) { print ""; pending-- }
print
}
END { while (pending > 0) { print ""; pending-- } }
' "$BEFORE_RULES" > "$tmp"
cat "$tmp" > "$BEFORE_RULES"
rm -f "$tmp"
}
case "$1" in
purge)
strip_ufw_blocks
# Let ucf forget the file before it is removed, or a reinstall finds a
# stale hash and declines to lay the file down again.
if command -v ucf >/dev/null 2>&1; then
ucf --purge /etc/vpn-router/vpn-router.json
fi
if command -v ucfr >/dev/null 2>&1; then
ucfr --purge vpn-router /etc/vpn-router/vpn-router.json
fi
rm -f /etc/swanctl/conf.d/site-to-site.conf \
/etc/swanctl/conf.d/road-warrior.conf \
/etc/systemd/resolved.conf.d/p2s-forwarder.conf \
/etc/wireguard/wg0.conf \
/etc/openvpn/server/vpn-router.conf \
/etc/openvpn/server/vpn-router-ldap.conf \
/etc/caddy/vpn-router.Caddyfile \
/etc/vpn-router/vpn-router.json \
/etc/vpn-router/web.key \
/etc/vpn-router/metrics.secret \
/var/lib/vpn-router/setup.done
rmdir --ignore-fail-on-non-empty /var/lib/vpn-router 2>/dev/null || true
# The refresh tokens' database and role, when the package created them.
if [ -f /etc/vpn-router/database.secret ] && command -v psql >/dev/null 2>&1; then
runuser -u postgres -- psql -X -q -c 'DROP DATABASE IF EXISTS "vpn-router"' || true
runuser -u postgres -- psql -X -q -c 'DROP ROLE IF EXISTS "vpn-router"' || true
fi
rm -f /etc/vpn-router/database.secret
# Key material and users are not package state: /etc/vpn-router/pki,
# /etc/vpn-router/ldap, the user directory in slapd, the WireGuard key
# pair and everything under /etc/swanctl are left in place.
rmdir --ignore-fail-on-non-empty /etc/vpn-router 2>/dev/null || true
;;
esac
#DEBHELPER#