You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
276 lines
9.8 KiB
276 lines
9.8 KiB
#!/bin/sh
|
|
# dns based ad/abuse domain blocking script
|
|
# written by Dirk Brenken (dev@brenken.org)
|
|
|
|
# This is free software, licensed under the GNU General Public License v3.
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
# prepare environment
|
|
#
|
|
adb_pid="${$}"
|
|
adb_pidfile="/var/run/adblock.pid"
|
|
adb_scriptver="1.4.2"
|
|
adb_mincfgver="2.3"
|
|
adb_scriptdir="${0%/*}"
|
|
if [ -r "${adb_pidfile}" ]
|
|
then
|
|
rc=255
|
|
logger -s -t "adblock[${adb_pid}] error" "adblock service already running ($(cat ${adb_pidfile}))"
|
|
exit ${rc}
|
|
else
|
|
printf "${adb_pid}" > "${adb_pidfile}"
|
|
if [ -r "${adb_scriptdir}/adblock-helper.sh" ]
|
|
then
|
|
. "${adb_scriptdir}/adblock-helper.sh"
|
|
f_envload
|
|
else
|
|
rc=254
|
|
logger -s -t "adblock[${adb_pid}] error" "adblock function library not found"
|
|
rm -f "${adb_pidfile}"
|
|
exit ${rc}
|
|
fi
|
|
fi
|
|
|
|
# call trap function on error signals (HUP, INT, QUIT, BUS, SEGV, TERM)
|
|
#
|
|
trap "rc=250; f_log 'error signal received/trapped'; f_exit" 1 2 3 10 11 15
|
|
|
|
# check environment
|
|
#
|
|
f_envcheck
|
|
|
|
# main loop for all block list sources
|
|
#
|
|
for src_name in ${adb_sources}
|
|
do
|
|
# check disabled sources
|
|
#
|
|
eval "enabled=\"\${enabled_${src_name}}\""
|
|
if [ "${enabled}" = "0" ]
|
|
then
|
|
if [ -r "${adb_dnsdir}/${adb_dnsprefix}.${src_name}" ]
|
|
then
|
|
rm -f "${adb_dnsdir}/${adb_dnsprefix}.${src_name}"
|
|
if [ "${backup_ok}" = "true" ] && [ -r "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" ]
|
|
then
|
|
rm -f "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz"
|
|
fi
|
|
rm_done="true"
|
|
f_log "=> disabled source '${src_name}' removed"
|
|
fi
|
|
"${adb_uci}" -q delete "adblock.${src_name}.adb_src_count"
|
|
"${adb_uci}" -q delete "adblock.${src_name}.adb_src_timestamp"
|
|
continue
|
|
fi
|
|
|
|
f_log "=> processing source '${src_name}'"
|
|
eval "url=\"\${adb_src_${src_name}}\""
|
|
eval "src_rset=\"\${adb_src_rset_${src_name}}\""
|
|
eval "list_time=\"\${CONFIG_${src_name}_adb_src_timestamp}\""
|
|
adb_dnsfile="${adb_dnsdir}/${adb_dnsprefix}.${src_name}"
|
|
|
|
# check 'url' and 'src_rset' values
|
|
#
|
|
if [ -z "${url}" ] || [ -z "${src_rset}" ]
|
|
then
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=broken config"
|
|
f_log " broken source configuration, skipped"
|
|
continue
|
|
fi
|
|
|
|
# download only block list with newer/updated timestamp
|
|
#
|
|
if [ "${src_name}" = "blacklist" ]
|
|
then
|
|
url_time="$(date -r "${url}")"
|
|
else
|
|
url_time="$(${adb_fetch} ${fetch_parm} ${response_parm} "${url}" 2>&1 | awk '$0 ~ /Last-Modified/ {printf substr($0,18)}')"
|
|
fi
|
|
if [ -z "${url_time}" ]
|
|
then
|
|
url_time="$(date)"
|
|
f_log " no online timestamp"
|
|
fi
|
|
if [ -z "${list_time}" ] || [ "${list_time}" != "${url_time}" ] || [ ! -r "${adb_dnsfile}" ] ||\
|
|
([ "${backup_ok}" = "true" ] && [ ! -r "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" ])
|
|
then
|
|
if [ "${src_name}" = "blacklist" ]
|
|
then
|
|
tmp_domains="$(cat "${url}")"
|
|
elif [ "${src_name}" = "shalla" ]
|
|
then
|
|
shalla_archive="${adb_tmpdir}/shallalist.tar.gz"
|
|
shalla_file="${adb_tmpdir}/shallalist.txt"
|
|
"${adb_fetch}" ${fetch_parm} -O "${shalla_archive}" "${url}"
|
|
rc=${?}
|
|
if [ $((rc)) -eq 0 ]
|
|
then
|
|
> "${shalla_file}"
|
|
for category in ${adb_src_cat_shalla}
|
|
do
|
|
tar -xOzf "${shalla_archive}" BL/${category}/domains >> "${shalla_file}"
|
|
rc=${?}
|
|
if [ $((rc)) -ne 0 ]
|
|
then
|
|
f_log " archive extraction failed (${category})"
|
|
break
|
|
fi
|
|
done
|
|
tmp_domains="$(cat "${shalla_file}")"
|
|
rm -rf "${adb_tmpdir}/BL"
|
|
rm -f "${shalla_archive}"
|
|
rm -f "${shalla_file}"
|
|
fi
|
|
else
|
|
tmp_domains="$(${adb_fetch} ${fetch_parm} -O- "${url}")"
|
|
fi
|
|
rc=${?}
|
|
else
|
|
f_log " source doesn't change, skipped"
|
|
continue
|
|
fi
|
|
|
|
# check download result and prepare domain output, backup/restore if needed
|
|
#
|
|
if [ $((rc)) -eq 0 ] && [ -n "${tmp_domains}" ]
|
|
then
|
|
count="$(printf "%s\n" "${tmp_domains}" | awk "${src_rset}" | tee "${adb_tmpfile}" | wc -l)"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=${url_time}"
|
|
if [ "${backup_ok}" = "true" ]
|
|
then
|
|
gzip -cf "${adb_tmpfile}" > "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz"
|
|
fi
|
|
f_log " source download finished (${count} entries)"
|
|
unset tmp_domains
|
|
elif [ $((rc)) -eq 0 ] && [ -z "${tmp_domains}" ]
|
|
then
|
|
if [ "${backup_ok}" = "true" ] && [ -r "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" ]
|
|
then
|
|
gunzip -cf "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" > "${adb_tmpfile}"
|
|
count="$(wc -l < "${adb_tmpfile}")"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=list restored"
|
|
f_log " empty source download, restored (${count} entries)"
|
|
else
|
|
if [ -r "${adb_dnsdir}/${adb_dnsprefix}.${src_name}" ]
|
|
then
|
|
rm -f "${adb_dnsdir}/${adb_dnsprefix}.${src_name}"
|
|
rm_done="true"
|
|
fi
|
|
"${adb_uci}" -q delete "adblock.${src_name}.adb_src_count"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=empty download"
|
|
f_log " empty source download, skipped"
|
|
continue
|
|
fi
|
|
else
|
|
rc=0
|
|
if [ "${backup_ok}" = "true" ] && [ -r "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" ]
|
|
then
|
|
gunzip -cf "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" > "${adb_tmpfile}"
|
|
count="$(wc -l < "${adb_tmpfile}")"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=list restored"
|
|
f_log " source download failed, restored (${count} entries)"
|
|
else
|
|
if [ -r "${adb_dnsdir}/${adb_dnsprefix}.${src_name}" ]
|
|
then
|
|
rm -f "${adb_dnsdir}/${adb_dnsprefix}.${src_name}"
|
|
rm_done="true"
|
|
fi
|
|
"${adb_uci}" -q delete "adblock.${src_name}.adb_src_count"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=download failed"
|
|
f_log " source download failed, skipped"
|
|
continue
|
|
fi
|
|
fi
|
|
|
|
# remove whitelist domains, sort domains and make them unique,
|
|
# rewrite ad/abuse domain information to separate dnsmasq files
|
|
#
|
|
if [ $((count)) -gt 0 ] && [ -n "${adb_tmpfile}" ]
|
|
then
|
|
if [ -s "${adb_tmpdir}/tmp.whitelist" ]
|
|
then
|
|
grep -vf "${adb_tmpdir}/tmp.whitelist" "${adb_tmpfile}" | sort -u | eval "${adb_dnsformat}" > "${adb_dnsfile}"
|
|
else
|
|
sort -u "${adb_tmpfile}" | eval "${adb_dnsformat}" > "${adb_dnsfile}"
|
|
fi
|
|
rc=${?}
|
|
if [ $((rc)) -eq 0 ]
|
|
then
|
|
rev_done="true"
|
|
f_log " domain merging finished"
|
|
else
|
|
rc=0
|
|
rm -f "${adb_dnsfile}"
|
|
if [ "${backup_ok}" = "true" ] && [ -r "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" ]
|
|
then
|
|
rm -f "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz"
|
|
fi
|
|
"${adb_uci}" -q delete "adblock.${src_name}.adb_src_count"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=domain merging failed"
|
|
f_log " domain merging failed, skipped"
|
|
continue
|
|
fi
|
|
else
|
|
rm -f "${adb_dnsfile}"
|
|
if [ "${backup_ok}" = "true" ] && [ -r "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz" ]
|
|
then
|
|
rm -f "${adb_dir_backup}/${adb_dnsprefix}.${src_name}.gz"
|
|
fi
|
|
"${adb_uci}" -q delete "adblock.${src_name}.adb_src_count"
|
|
"${adb_uci}" -q set "adblock.${src_name}.adb_src_timestamp=empty domain input"
|
|
f_log " empty domain input, skipped"
|
|
continue
|
|
fi
|
|
done
|
|
|
|
# overall sort, make block list entries unique
|
|
#
|
|
if [ "${rev_done}" = "true" ] && [ "${mem_ok}" = "true" ]
|
|
then
|
|
f_log "remove duplicates in separate block lists"
|
|
for list in $(ls -ASr "${adb_dnsdir}/${adb_dnsprefix}"*)
|
|
do
|
|
list="${list/*./}"
|
|
if [ -s "${adb_tmpdir}/blocklist.overall" ]
|
|
then
|
|
sort "${adb_tmpdir}/blocklist.overall" "${adb_tmpdir}/blocklist.overall" "${adb_dnsdir}/${adb_dnsprefix}.${list}" | uniq -u > "${adb_tmpdir}/tmp.blocklist"
|
|
cat "${adb_tmpdir}/tmp.blocklist" > "${adb_dnsdir}/${adb_dnsprefix}.${list}"
|
|
fi
|
|
cat "${adb_dnsdir}/${adb_dnsprefix}.${list}" >> "${adb_tmpdir}/blocklist.overall"
|
|
done
|
|
fi
|
|
|
|
# restart & check dnsmasq with generated set of block lists
|
|
#
|
|
if [ "${rev_done}" = "true" ] || [ "${rm_done}" = "true" ] || [ -n "${mv_done}" ]
|
|
then
|
|
"${adb_uci}" -q delete "adblock.global.adb_dnstoggle"
|
|
/etc/init.d/dnsmasq restart
|
|
sleep 1
|
|
check="$(pgrep -f "dnsmasq")"
|
|
if [ -n "${check}" ]
|
|
then
|
|
f_cntconfig
|
|
f_log "block lists with overall ${adb_count} domains loaded"
|
|
else
|
|
f_rmdns
|
|
sleep 1
|
|
check="$(pgrep -f "dnsmasq")"
|
|
if [ -n "${check}" ]
|
|
then
|
|
f_log "dnsmasq restart without block lists succeeded, please check your configuration"
|
|
else
|
|
f_log "dnsmasq restart without block lists failed, please check your configuration"
|
|
fi
|
|
rc=100
|
|
f_exit
|
|
fi
|
|
else
|
|
f_cntconfig
|
|
f_log "block lists with overall ${adb_count} domains are still valid, no update required"
|
|
fi
|
|
|
|
# remove temporary files and exit
|
|
#
|
|
f_exit
|