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install_easy.sh
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#!/bin/sh
# automated script for easy installing zapret
EXEDIR="$(dirname "$0")"
EXEDIR="$(cd "$EXEDIR"; pwd)"
IPSET_DIR="$EXEDIR/ipset"
ZAPRET_CONFIG="$EXEDIR/config"
ZAPRET_BASE="$EXEDIR"
. "$ZAPRET_CONFIG"
# install target
ZAPRET_TARGET=/opt/zapret
GET_LIST="$IPSET_DIR/get_config.sh"
GET_LIST_PREFIX=/ipset/get_
INIT_SCRIPT=/etc/init.d/zapret
DNSCHECK_DNS="8.8.8.8 1.1.1.1 77.88.8.8"
DNSCHECK_DOM="pornhub.com putinhuylo.com rutracker.org nnmclub.to kinozal.tv"
DNSCHECK_DIG1=/tmp/dig1.txt
DNSCHECK_DIG2=/tmp/dig2.txt
DNSCHECK_DIGS=/tmp/digs.txt
[ -n "$TPPORT" ] || TPPORT=988
SYSTEMD_DIR=/lib/systemd
[ -d "$SYSTEMD_DIR" ] || SYSTEMD_DIR=/usr/lib/systemd
[ -d "$SYSTEMD_DIR" ] && SYSTEMD_SYSTEM_DIR="$SYSTEMD_DIR/system"
ECHON="echo -n"
exists()
{
which $1 >/dev/null 2>/dev/null
}
whichq()
{
which $1 2>/dev/null
}
MD5=md5sum
exists $MD5 || MD5=md5
contains()
{
# check if substring $2 contains in $1
[ "${1#*$2}" != "$1" ]
}
exitp()
{
local A
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 "$0"
echo su or sudo not found
exitp 2
}
}
sedi()
{
# MacOS doesnt support -i without parameter. busybox doesnt support -i with parameter.
# its not possible to put "sed -i ''" to a variable and then use it
if [ "$SYSTEM" = "macos" ]; then
sed -i '' "$@"
else
sed -i "$@"
fi
}
read_yes_no()
{
# $1 - default (Y/N)
local A
read A
[ -z "$A" ] || ([ "$A" != "Y" ] && [ "$A" != "y" ] && [ "$A" != "N" ] && [ "$A" != "n" ]) && A=$1
[ "$A" = "Y" ] || [ "$A" = "y" ] || [ "$A" = "1" ]
}
ask_yes_no()
{
# $1 - default (Y/N or 0/1)
# $2 - text
local DEFAULT=$1
[ "$1" = "1" ] && DEFAULT=Y
[ "$1" = "0" ] && DEFAULT=N
[ -z "$DEFAULT" ] && DEFAULT=N
$ECHON "$2 (default : $DEFAULT) (Y/N) ? "
read_yes_no $DEFAULT
}
ask_yes_no_var()
{
# $1 - variable name for answer : 0/1
# $2 - text
local DEFAULT
eval DEFAULT="\$$1"
if ask_yes_no "$DEFAULT" "$2"; then
eval $1=1
else
eval $1=0
fi
}
on_off_function()
{
# $1 : function name on
# $2 : function name off
# $3 : 0 - off, 1 - on
local F="$1"
[ "$3" = "1" ] || F="$2"
shift
shift
shift
"$F" "$@"
}
get_dir_inode()
{
local dir="$1"
[ -L "$dir" ] && dir=$(readlink "$dir")
ls -id "$dir" | awk '{print $1}'
}
random()
{
# $1 - min, $2 - max
local r rs
if [ -c /dev/urandom ]; then
read rs </dev/urandom
else
rs="$RANDOM$RANDOM$(date)"
fi
# shells use signed int64
r=1$(echo $rs | $MD5 | sed 's/[^0-9]//g' | head -c 17)
echo $(( ($r % ($2-$1+1)) + $1 ))
}
check_system()
{
echo \* checking system
SYSTEM=""
SYSTEMCTL=$(whichq systemctl)
local UNAME=$(uname)
if [ "$UNAME" = "Linux" ]; then
# some distros include systemctl without systemd
if [ -d "$SYSTEMD_DIR" ] && [ -x "$SYSTEMD_DIR/systemd" ] && [ -x "$SYSTEMCTL" ]; then
SYSTEM=systemd
elif [ -f "/etc/openwrt_release" ] && exists opkg && exists uci ; then
SYSTEM=openwrt
elif exists /sbin/openrc-run || exists /usr/sbin/openrc-run ; then
SYSTEM=openrc
else
echo system is not either systemd, openrc or openwrt based
echo check readme.txt for manual setup info.
exitp 5
fi
elif [ "$UNAME" = "Darwin" ]; then
SYSTEM=macos
# MacOS echo from /bin/sh does not support -n
ECHON=printf
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 $SYSTEM
}
check_bins()
{
echo \* checking executables
local arch=$(get_bin_arch)
local make_target
[ "$FORCE_BUILD" = "1" ] && {
echo forced build mode
if [ "$arch" = "my" ]; then
echo already compiled
else
arch=""
fi
}
if [ -n "$arch" ] ; then
echo found architecture "\"$arch\""
elif [ -f "$EXEDIR/Makefile" ] && exists make; then
echo trying to compile
[ "$SYSTEM" = "macos" ] && make_target=mac
make -C "$EXEDIR" $make_target || {
echo could not compile
make -C "$EXEDIR" clean
exitp 8
}
echo compiled
else
echo build tools not found
exitp 8
fi
}
call_install_bin()
{
"$EXEDIR/install_bin.sh" $1
}
get_bin_arch()
{
call_install_bin getarch
}
install_binaries()
{
echo \* installing binaries
call_install_bin || {
echo compatible binaries not found
exitp 8
}
}
find_str_in_list()
{
[ -n "$1" ] && {
for v in $2; do
[ "$v" = "$1" ] && return 0
done
}
return 1
}
ask_list()
{
# $1 - mode var
# $2 - space separated value list
# $3 - (optional) default value
local M_DEFAULT
eval M_DEFAULT="\$$1"
local M_ALL=$M_DEFAULT
local M=""
local m
[ -n "$3" ] && { find_str_in_list "$M_DEFAULT" "$2" || M_DEFAULT="$3" ;}
n=1
for m in $2; do
echo $n : $m
n=$(($n+1))
done
$ECHON "your choice (default : $M_DEFAULT) : "
read m
[ -n "$m" ] && M=$(echo $2 | cut -d ' ' -f$m 2>/dev/null)
[ -z "$M" ] && M="$M_DEFAULT"
echo selected : $M
eval $1="\"$M\""
[ "$M" != "$M_OLD" ]
}
write_config_var()
{
# $1 - mode var
local M
eval M="\$$1"
if grep -q "^$1=\|^#$1=" "$ZAPRET_CONFIG"; then
# replace / => \/
#M=${M//\//\\\/}
M=$(echo $M | sed 's/\//\\\//g')
if [ -n "$M" ]; then
if contains "$M" " "; then
sedi -Ee "s/^#?$1=.*$/$1=\"$M\"/" "$ZAPRET_CONFIG"
else
sedi -Ee "s/^#?$1=.*$/$1=$M/" "$ZAPRET_CONFIG"
fi
else
# write with comment at the beginning
sedi -Ee "s/^#?$1=.*$/#$1=/" "$ZAPRET_CONFIG"
fi
else
# var does not exist in config. add it
if [ -n "$M" ]; then
echo "$1=$M" >>"$ZAPRET_CONFIG"
else
echo "#$1=$M" >>"$ZAPRET_CONFIG"
fi
fi
}
select_mode_mode()
{
local MODES="tpws tpws-socks nfqws filter custom"
[ "$SYSTEM" = "macos" ] && MODES="tpws tpws-socks filter custom"
echo
echo select MODE :
ask_list MODE "$MODES" tpws && write_config_var MODE
case $MODE in
tpws)
echo
echo tpws options : $TPWS_OPT
echo to change : edit TPWS_OPT in $ZAPRET_CONFIG
;;
nfqws)
echo
echo "nfqws options (default) : $NFQWS_OPT_DESYNC"
echo "nfqws options (http) : $NFQWS_OPT_DESYNC_HTTP"
echo "nfqws options (https) : $NFQWS_OPT_DESYNC_HTTPS"
echo to change : edit NFQWS_OPT_DESYNC, NFQWS_OPT_DESYNC_HTTP, NFQWS_OPT_DESYNC_HTTPS in $ZAPRET_CONFIG
;;
esac
}
select_mode_http()
{
[ "$MODE" != "filter" ] && [ "$MODE" != "tpws-socks" ] && {
echo
ask_yes_no_var MODE_HTTP "enable http support"
write_config_var MODE_HTTP
}
}
select_mode_keepalive()
{
[ "$MODE" = "nfqws" ] && [ "$MODE_HTTP" = "1" ] && {
echo
echo enable keep alive support only if DPI checks every outgoing packet for http signature
echo dont enable otherwise because it consumes more cpu resources
ask_yes_no_var MODE_HTTP_KEEPALIVE "enable http keep alive support"
write_config_var MODE_HTTP_KEEPALIVE
}
}
select_mode_https()
{
[ "$MODE" != "filter" ] && [ "$MODE" != "tpws-socks" ] && {
echo
ask_yes_no_var MODE_HTTPS "enable https support"
write_config_var MODE_HTTPS
}
}
select_mode_filter()
{
local filter="none ipset hostlist"
[ "$MODE" = "tpws-socks" ] && filter="none hostlist"
echo
echo select filtering :
ask_list MODE_FILTER "$filter" none && write_config_var MODE_FILTER
}
select_mode()
{
select_mode_mode
select_mode_iface
select_mode_http
select_mode_keepalive
select_mode_https
select_mode_filter
}
select_getlist()
{
if [ "$MODE_FILTER" = "ipset" -o "$MODE_FILTER" = "hostlist" ]; then
local D=N
[ -n "$GETLIST" ] && D=Y
echo
if ask_yes_no $D "do you want to auto download ip/host list"; then
if [ "$MODE_FILTER" = "hostlist" ] ; then
local GL_OLD=$GETLIST
GETLIST="get_reestr_hostlist.sh"
[ "$GL_OLD" != "$GET_LIST" ] && write_config_var GETLIST
else
GETLISTS="get_user.sh get_antifilter_ip.sh get_antifilter_ipsmart.sh get_antifilter_ipsum.sh get_reestr_ip.sh get_reestr_combined.sh get_reestr_resolve.sh"
GETLIST_DEF="get_antifilter_ipsmart.sh"
ask_list GETLIST "$GETLISTS" "$GETLIST_DEF" && write_config_var GETLIST
fi
return
fi
fi
GETLIST=""
write_config_var GETLIST
}
select_ipv6()
{
local T=N
[ "$DISABLE_IPV6" != '1' ] && T=Y
local old6=$DISABLE_IPV6
echo
if ask_yes_no $T "enable ipv6 support"; then
DISABLE_IPV6=0
else
DISABLE_IPV6=1
fi
[ "$old6" != "$DISABLE_IPV6" ] && write_config_var DISABLE_IPV6
}
ask_config()
{
select_mode
select_getlist
}
ask_config_offload()
{
is_flow_offload_avail && {
echo
echo flow offloading can greatly increase speed on slow devices and high speed links \(usually 150+ mbits\)
echo unfortuantely its not compatible with most nfqws options. nfqws traffic must be exempted from flow offloading.
echo donttouch = disable system flow offloading setting if nfqws mode was selected, dont touch it otherwise and dont configure selective flow offloading
echo none = always disable system flow offloading setting and dont configure selective flow offloading
echo software = always disable system flow offloading setting and configure selective software flow offloading
echo hardware = always disable system flow offloading setting and configure selective hardware flow offloading
echo select flow offloading :
ask_list FLOWOFFLOAD "donttouch none software hardware" donttouch && write_config_var FLOWOFFLOAD
}
}
get_free_space_mb()
{
df -m $PWD | awk '/[0-9]%/{print $(NF-2)}'
}
get_ram_kb()
{
grep MemTotal /proc/meminfo | awk '{print $2}'
}
get_ram_mb()
{
local R=$(get_ram_kb)
echo $(($R/1024))
}
ask_config_tmpdir()
{
# ask tmpdir change for low ram systems with enough free disk space
[ -n "$GETLIST" ] && [ $(get_free_space_mb "$EXEDIR/tmp") -ge 128 ] && [ $(get_ram_mb) -le 400 ] && {
echo
echo /tmp in openwrt is tmpfs. on low RAM systems there may be not enough RAM to store downloaded files
echo default tmpfs has size of 50% RAM
echo "RAM : $(get_ram_mb) Mb"
echo "DISK : $(get_free_space_mb) Mb"
echo select temp file location
[ -z "$TMPDIR" ] && TMPDIR=/tmp
ask_list TMPDIR "/tmp $EXEDIR/tmp" && {
[ "$TMPDIR" = "/tmp" ] && TMPDIR=
write_config_var TMPDIR
}
}
}
ask_iface()
{
# $1 - var to ask
# $2 - additional name for empty string synonim
local ifs i0 def new
eval def="\$$1"
[ -n "$2" ] && i0="$2 "
case $SYSTEM in
macos)
ifs="$(ifconfig -l)"
;;
*)
ifs="$(ls /sys/class/net)"
;;
esac
[ -z "$def" ] && eval $1="$2"
ask_list $1 "$i0$ifs" && {
eval new="\$$1"
[ "$new" = "$2" ] && eval $1=""
write_config_var $1
}
}
ask_iface_lan()
{
echo LAN interface :
ask_iface IFACE_LAN "NONE"
}
ask_iface_wan()
{
echo WAN interface :
ask_iface IFACE_WAN "ANY"
}
select_mode_iface()
{
# openwrt has its own interface management scheme
# filter just creates ip tables, no daemons involved
# nfqws sits in POSTROUTING chain and unable to filter by incoming interface
# tpws redirection works in PREROUTING chain
# in tpws-socks mode IFACE_LAN specifies additional bind interface for the socks listener
# it's not possible to instruct tpws to route outgoing connection to an interface (OS routing table decides)
# custom mode can also benefit from interface names (depends on custom script code)
if [ "$SYSTEM" = "openwrt" ] || [ "$MODE" = "filter" ]; then return; fi
echo
case "$MODE" in
tpws-socks)
echo "select LAN interface to allow socks access from your LAN. select NONE for localhost only."
echo "expect socks on tcp port $TPPORT"
ask_iface_lan
;;
tpws)
echo "select LAN interface to operate in router mode. select NONE for local outgoing traffic only."
if [ "$SYSTEM" = "macos" ]; then
echo "WARNING ! OS feature \"internet sharing\" is not supported."
echo "Only manually configured PF router is supported."
else
echo "WARNING ! This installer will not configure routing, NAT, ... for you. Its your responsibility."
fi
ask_iface_lan
;;
custom)
echo "select LAN interface for your custom script (how it works depends on your code)"
ask_iface_lan
;;
esac
case "$MODE" in
tpws)
echo "select WAN interface for $MODE operations. select ANY to operate on any interface."
[ -n "$IFACE_LAN" ] && echo "WAN filtering works only for local outgoing traffic !"
ask_iface_wan
;;
nfqws)
echo "select WAN interface for $MODE operations. select ANY to operate on any interface."
ask_iface_wan
;;
custom)
echo "select WAN interface for your custom script (how it works depends on your code)"
ask_iface_wan
;;
esac
}
copy_all()
{
cp -R "$1" "$2"
[ -d "$2/tmp" ] || mkdir "$2/tmp"
}
copy_openwrt()
{
local ARCH=$(get_bin_arch)
local BINDIR="$1/binaries/$ARCH"
[ -d "$2" ] || mkdir -p "$2"
mkdir "$2/tpws" "$2/nfq" "$2/ip2net" "$2/mdig" "$2/binaries" "$2/binaries/$ARCH" "$2/init.d" "$2/tmp"
cp -R "$1/ipset" "$2"
cp -R "$1/init.d/openwrt" "$2/init.d"
cp "$1/config" "$1/install_easy.sh" "$1/uninstall_easy.sh" "$1/install_bin.sh" "$2"
cp "$BINDIR/tpws" "$BINDIR/nfqws" "$BINDIR/ip2net" "$BINDIR/mdig" "$2/binaries/$ARCH"
}
_backup_settings()
{
local i=0
for f in "$@"; do
[ -f "$ZAPRET_TARGET/$f" ] && cp -f "$ZAPRET_TARGET/$f" "/tmp/zapret-bkp-$i"
i=$(($i+1))
done
}
_restore_settings()
{
local i=0
for f in "$@"; do
[ -f "/tmp/zapret-bkp-$i" ] && mv -f "/tmp/zapret-bkp-$i" "$ZAPRET_TARGET/$f" || rm -f "/tmp/zapret-bkp-$i"
i=$(($i+1))
done
}
backup_restore_settings()
{
# $1 - 1 - backup, 0 - restore
local mode=$1
on_off_function _backup_settings _restore_settings $mode "config" "init.d/sysv/custom" "init.d/openwrt/custom" "init.d/macos/custom" "ipset/zapret-hosts-user.txt" "ipset/zapret-hosts-user-exclude.txt" "ipset/zapret-hosts-user-ipban.txt"
}
check_location()
{
# $1 - copy function
echo \* checking location
# use inodes in case something is linked
[ -d "$ZAPRET_TARGET" ] && [ $(get_dir_inode "$EXEDIR") = $(get_dir_inode "$ZAPRET_TARGET") ] || {
echo
echo easy install is supported only from default location : $ZAPRET_TARGET
echo currently its run from $EXEDIR
if ask_yes_no N "do you want the installer to copy it for you"; then
local keep=N
if [ -d "$ZAPRET_TARGET" ]; then
echo
echo installer found existing $ZAPRET_TARGET
echo directory needs to be replaced. config and custom scripts can be kept or replaced with clean version
if ask_yes_no N "do you want to delete all files there and copy this version"; then
echo
ask_yes_no Y "keep config, custom scripts and user lists" && keep=Y
[ "$keep" = "Y" ] && backup_restore_settings 1
rm -r "$ZAPRET_TARGET"
else
echo refused to overwrite $ZAPRET_TARGET. exiting
exitp 3
fi
fi
local B=$(dirname "$ZAPRET_TARGET")
[ -d "$B" ] || mkdir -p "$B"
$1 "$EXEDIR" "$ZAPRET_TARGET"
[ "$keep" = "Y" ] && backup_restore_settings 0
echo relaunching itself from $ZAPRET_TARGET
exec $ZAPRET_TARGET/$(basename $0)
else
echo copying aborted. exiting
exitp 3
fi
}
echo running from $EXEDIR
}
check_prerequisites_linux()
{
echo \* checking prerequisites
if exists iptables && exists ip6tables ; then
echo iptables present
else
# looks like it's a limited system. will not guess how to install base tools
echo '! iptables/ip6tables NOT present. you must install them manually.'
exitp 5
fi
if exists ipset && exists curl ; then
echo ipset and curl are present
else
echo \* installing prerequisites
APTGET=$(whichq apt-get)
YUM=$(whichq yum)
PACMAN=$(whichq pacman)
ZYPPER=$(whichq zypper)
EOPKG=$(whichq eopkg)
APK=$(whichq apk)
if [ -x "$APTGET" ] ; then
"$APTGET" update
"$APTGET" install -y --no-install-recommends ipset curl dnsutils || {
echo could not install prerequisites
exitp 6
}
elif [ -x "$YUM" ] ; then
"$YUM" -y install curl ipset || {
echo could not install prerequisites
exitp 6
}
elif [ -x "$PACMAN" ] ; then
"$PACMAN" -Syy
"$PACMAN" --noconfirm -S ipset curl || {
echo could not install prerequisites
exitp 6
}
elif [ -x "$ZYPPER" ] ; then
"$ZYPPER" --non-interactive install ipset curl || {
echo could not install prerequisites
exitp 6
}
elif [ -x "$EOPKG" ] ; then
"$EOPKG" -y install ipset curl || {
echo could not install prerequisites
exitp 6
}
elif [ -x "$APK" ] ; then
"$APK" add ipset curl || {
echo could not install prerequisites
exitp 6
}
else
echo supported package manager not found
echo you must manually install : ipset curl
exitp 5
fi
fi
}
service_install_systemd()
{
echo \* installing zapret service
rm -f "$INIT_SCRIPT"
ln -fs "$EXEDIR/init.d/systemd/zapret.service" "$SYSTEMD_SYSTEM_DIR"
"$SYSTEMCTL" daemon-reload
"$SYSTEMCTL" enable zapret || {
echo could not enable systemd service
exitp 20
}
}
service_stop_systemd()
{
echo \* stopping zapret service
"$SYSTEMCTL" daemon-reload
"$SYSTEMCTL" disable zapret
"$SYSTEMCTL" stop zapret
}
service_start_systemd()
{
echo \* starting zapret service
"$SYSTEMCTL" start zapret || {
echo could not start zapret service
exitp 30
}
}
timer_install_systemd()
{
echo \* installing zapret-list-update timer
"$SYSTEMCTL" disable zapret-list-update.timer
"$SYSTEMCTL" stop zapret-list-update.timer
ln -fs "$EXEDIR/init.d/systemd/zapret-list-update.service" "$SYSTEMD_SYSTEM_DIR"
ln -fs "$EXEDIR/init.d/systemd/zapret-list-update.timer" "$SYSTEMD_SYSTEM_DIR"
"$SYSTEMCTL" daemon-reload
"$SYSTEMCTL" enable zapret-list-update.timer || {
echo could not enable zapret-list-update.timer
exitp 20
}
"$SYSTEMCTL" start zapret-list-update.timer || {
echo could not start zapret-list-update.timer
exitp 30
}
}
download_list()
{
[ -x "$GET_LIST" ] && {
echo \* downloading blocked ip/host list
# can be txt or txt.gz
"$IPSET_DIR/clear_lists.sh"
"$GET_LIST" || {
echo could not download ip list
exitp 25
}
}
}
end_with_newline()
{
local c=$(tail -c 1)
[ "$c" = "" ]
}
crontab_del_quiet()
{
exists crontab || return
CRONTMP=/tmp/cron.tmp
crontab -l >$CRONTMP 2>/dev/null
if grep -q "$GET_LIST_PREFIX" $CRONTMP; then
grep -v "$GET_LIST_PREFIX" $CRONTMP >$CRONTMP.2
crontab $CRONTMP.2
rm -f $CRONTMP.2
fi
rm -f $CRONTMP
}
crontab_add()
{
# $1 - hour min
# $2 - hour max
[ -x "$GET_LIST" ] && {
echo \* adding crontab entry
CRONTMP=/tmp/cron.tmp
crontab -l >$CRONTMP 2>/dev/null
if grep -q "$GET_LIST_PREFIX" $CRONTMP; then
echo some entries already exist in crontab. check if this is corrent :
grep "$GET_LIST_PREFIX" $CRONTMP
else
end_with_newline <"$CRONTMP" || echo >>"$CRONTMP"
echo "$(random 0 59) $(random $1 $2) */2 * * $GET_LIST" >>$CRONTMP
crontab $CRONTMP
fi
rm -f $CRONTMP
}
}
cron_ensure_running()
{
# if no crontabs present in /etc/cron openwrt init script does not launch crond. this is default
[ "$SYSTEM" = "openwrt" ] && {
/etc/init.d/cron enable
/etc/init.d/cron start
}
}
pingtest()
{
ping -c 1 -W 1 $1 >/dev/null
}
find_working_public_dns()
{
for dns in $DNSCHECK_DNS; do
pingtest $dns && nslookup w3.org $dns >/dev/null 2>/dev/null && {
PUBDNS=$dns
return 0
}
done
return 1
}
check_dns_spoof()
{
# $1 - domain
# $2 - public DNS
echo $1 | "$EXEDIR/mdig/mdig" --family=4 >"$DNSCHECK_DIG1"
nslookup $1 $2 | sed -n '/Name:/,$p' | grep ^Address | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}' >"$DNSCHECK_DIG2"
# check whether system resolver returns anything other than public DNS
grep -qvFf "$DNSCHECK_DIG2" "$DNSCHECK_DIG1"
}
check_dns_cleanup()
{
rm -f "$DNSCHECK_DIG1" "$DNSCHECK_DIG2" "$DNSCHECK_DIGS" 2>/dev/null
}
check_dns()
{
local C1 C2
echo \* checking DNS
[ -f "$DNSCHECK_DIGS" ] && rm -f "$DNSCHECK_DIGS"
if find_working_public_dns ; then
echo comparing system resolver to public DNS : $PUBDNS
for dom in $DNSCHECK_DOM; do
if check_dns_spoof $dom $PUBDNS ; then
echo $dom : MISMATCH
echo -- system resolver :
cat "$DNSCHECK_DIG1"
echo -- $PUBDNS :
cat "$DNSCHECK_DIG2"
check_dns_cleanup
echo -- POSSIBLE DNS HIJACK DETECTED. ZAPRET WILL NOT HELP YOU IN CASE DNS IS SPOOFED !!!
echo -- DNS CHANGE OR DNSCRYPT MAY BE REQUIRED
return 1
else
echo $dom : OK
cat "$DNSCHECK_DIG1" >>"$DNSCHECK_DIGS"
fi
done
else
echo no working public DNS was found. looks like public DNS blocked.
for dom in $DNSCHECK_DOM; do echo $dom; done | "$EXEDIR/mdig/mdig" --threads=10 --family=4 >"$DNSCHECK_DIGS"
fi
echo checking resolved IP uniqueness for : $DNSCHECK_DOM
echo censor\'s DNS can return equal result for multiple blocked domains.
C1=$(wc -l <"$DNSCHECK_DIGS")
C2=$(sort -u "$DNSCHECK_DIGS" | wc -l)
[ "$C1" -eq 0 ] &&
{
echo -- DNS is not working. It's either misconfigured or blocked or you don't have inet access.
check_dns_cleanup
return 1
}
[ "$C1" = "$C2" ] ||
{
echo system dns resolver has returned equal IPs for some domains checked above \($C1 total, $C2 unique\)
echo non-unique IPs :
sort "$DNSCHECK_DIGS" | uniq -d
echo -- POSSIBLE DNS HIJACK DETECTED. ZAPRET WILL NOT HELP YOU IN CASE DNS IS SPOOFED !!!
echo -- DNSCRYPT MAY BE REQUIRED
check_dns_cleanup
return 1
}
echo all resolved IPs are unique
echo -- DNS looks good
echo -- NOTE this check is Russia targeted. In your country other domains may be blocked.
check_dns_cleanup
return 0
}
install_systemd()
{
INIT_SCRIPT_SRC="$EXEDIR/init.d/sysv/zapret"
check_bins
require_root
check_location copy_all
check_prerequisites_linux
service_stop_systemd
install_binaries
check_dns
select_ipv6
ask_config
service_install_systemd
download_list
# in case its left from old version of zapret
crontab_del_quiet
# now we use systemd timers
timer_install_systemd
service_start_systemd
}
install_sysv_init()
{
# $1 - "0"=disable
echo \* installing init script
[ -x "$INIT_SCRIPT" ] && {
"$INIT_SCRIPT" stop
"$INIT_SCRIPT" disable
}
ln -fs "$INIT_SCRIPT_SRC" "$INIT_SCRIPT"
[ "$1" != "0" ] && "$INIT_SCRIPT" enable
}
install_openrc_init()
{
# $1 - "0"=disable
echo \* installing init script
[ -x "$INIT_SCRIPT" ] && {
"$INIT_SCRIPT" stop
rc-update del zapret
}
ln -fs "$INIT_SCRIPT_SRC" "$INIT_SCRIPT"
[ "$1" != "0" ] && rc-update add zapret
}
service_start_sysv()
{
echo \* starting zapret service
"$INIT_SCRIPT" start || {
echo could not start zapret service
exitp 30
}
}
service_stop_sysv()
{
[ -x "$INIT_SCRIPT" ] && {
echo \* stopping zapret service
"$INIT_SCRIPT" stop
}
}
_install_sysv()
{
# $1 - install init script
INIT_SCRIPT_SRC="$EXEDIR/init.d/sysv/zapret"
check_bins
require_root
check_location copy_all
check_prerequisites_linux
service_stop_sysv
install_binaries
check_dns
select_ipv6
ask_config
$1
download_list
crontab_del_quiet
# desktop system. more likely up at daytime
crontab_add 10 22
service_start_sysv
}
install_sysv()
{
_install_sysv install_sysv_init
}
install_openrc()
{
_install_sysv install_openrc_init
}
check_kmod()
{
[ -f "/lib/modules/$(uname -r)/$1.ko" ]
}
check_package_exists_openwrt()
{
[ -n "$(opkg list $1)" ]
}
check_package_openwrt()