zapret/uninstall_easy.sh

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2021-03-04 11:30:38 +00:00
#!/bin/sh
# automated script for easy uninstalling zapret
EXEDIR="$(dirname "$0")"
EXEDIR="$(cd "$EXEDIR"; pwd)"
IPSET_DIR="$EXEDIR/ipset"
GET_LIST_PREFIX=/ipset/get_
SYSTEMD_SYSTEM_DIR=/lib/systemd/system
[ -d "$SYSTEMD_SYSTEM_DIR" ] || SYSTEMD_SYSTEM_DIR=/usr/lib/systemd/system
exists()
{
which $1 >/dev/null 2>/dev/null
}
whichq()
{
which $1 2>/dev/null
}
exitp()
{
echo
echo press enter to continue
read A
exit $1
}
require_root()
{
[ $(id -u) -ne "0" ] && {
echo root is required
exists sudo && exec sudo "$0"
exists su && exec su -c "$0"
echo su or sudo not found
exitp 2
}
}
check_system()
{
echo \* checking system
SYSTEM=""
SYSTEMCTL=$(whichq systemctl)
local UNAME=$(uname)
if [ "$UNAME" = "Linux" ]; then
if [ -x "$SYSTEMCTL" ] ; then
SYSTEM=systemd
elif [ -f "/etc/openwrt_release" ] && exists opkg && exists uci ; then
SYSTEM=openwrt
else
echo system is not either systemd based or openwrt. check readme.txt for manual setup info.
exitp 5
fi
elif [ "$UNAME" = "Darwin" ]; then
SYSTEM=macos
else
echo easy installer only supports Linux and MacOS. check readme.txt for supported systems and manual setup info.
exitp 5
fi
echo system is based on $SYSTEM
}
crontab_del()
{
exists crontab || return
echo \* removing crontab entry
CRONTMP=/tmp/cron.tmp
crontab -l >$CRONTMP 2>/dev/null
if grep -q "$GET_LIST_PREFIX" $CRONTMP; then
echo removing following entries from crontab :
grep "$GET_LIST_PREFIX" $CRONTMP
grep -v "$GET_LIST_PREFIX" $CRONTMP >$CRONTMP.2
crontab $CRONTMP.2
rm -f $CRONTMP.2
fi
rm -f $CRONTMP
}
service_stop_systemd()
{
echo \* stopping zapret service
"$SYSTEMCTL" daemon-reload
"$SYSTEMCTL" disable zapret
"$SYSTEMCTL" stop zapret
}
service_remove_systemd()
{
echo \* removing zapret service
rm -f "$SYSTEMD_SYSTEM_DIR/zapret.service"
"$SYSTEMCTL" daemon-reload
}
timer_remove_systemd()
{
echo \* removing zapret-list-update timer
"$SYSTEMCTL" daemon-reload
"$SYSTEMCTL" disable zapret-list-update.timer
"$SYSTEMCTL" stop zapret-list-update.timer
rm -f "$SYSTEMD_SYSTEM_DIR/zapret-list-update.service" "$SYSTEMD_SYSTEM_DIR/zapret-list-update.timer"
"$SYSTEMCTL" daemon-reload
}
remove_systemd()
{
INIT_SCRIPT=/etc/init.d/zapret
service_stop_systemd
service_remove_systemd
timer_remove_systemd
crontab_del
}
openwrt_fw_section_find()
{
# $1 - fw include postfix
# echoes section number
i=0
while true
do
path=$(uci -q get firewall.@include[$i].path)
[ -n "$path" ] || break
[ "$path" = "$OPENWRT_FW_INCLUDE$1" ] && {
echo $i
return 0
}
i=$(($i+1))
done
return 1
}
openwrt_fw_section_del()
{
# $1 - fw include postfix
local id=$(openwrt_fw_section_find $1)
[ -n "$id" ] && {
uci delete firewall.@include[$id] && uci commit firewall
rm -f "$OPENWRT_FW_INCLUDE$1"
}
}
remove_openwrt_firewall()
{
echo \* removing firewall script
openwrt_fw_section_del
# from old zapret versions. now we use single include
openwrt_fw_section_del 6
# free some RAM
"$IPSET_DIR/create_ipset.sh" clear
}
restart_openwrt_firewall()
{
echo \* restarting firewall
fw3 -q restart || {
echo could not restart firewall
exitp 30
}
}
remove_openwrt_iface_hook()
{
echo \* removing ifup hook
rm -f /etc/hotplug.d/iface/??-zapret
}
service_remove_sysv()
{
echo \* removing zapret service
[ -x "$INIT_SCRIPT" ] && {
"$INIT_SCRIPT" disable
"$INIT_SCRIPT" stop
}
rm -f "$INIT_SCRIPT"
}
remove_openwrt()
{
INIT_SCRIPT=/etc/init.d/zapret
OPENWRT_FW_INCLUDE=/etc/firewall.zapret
remove_openwrt_firewall
restart_openwrt_firewall
service_remove_sysv
remove_openwrt_iface_hook
crontab_del
}
service_remove_macos()
{
echo \* removing zapret service
rm -f /Library/LaunchDaemons/zapret.plist
zapret_stop_daemons
}
remove_macos_firewall()
{
echo \* removing zapret PF hooks
pf_anchors_clear
pf_anchors_del
pf_anchor_root_del
pf_anchor_root_reload
}
remove_macos()
{
remove_macos_firewall
service_remove_macos
crontab_del
}
check_system
require_root
[ "$SYSTEM" = "macos" ] && . "$EXEDIR/init.d/macos/functions"
case $SYSTEM in
systemd)
remove_systemd
;;
openwrt)
remove_openwrt
;;
macos)
remove_macos
;;
esac
exitp 0