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672 richard 1
#/bin/bash
1015 richard 2
 
63 franck 3
# $Id: alcasar-bl.sh 1377 2014-06-10 22:16:50Z richard $
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672 richard 5
# alcasar-bl.sh
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# by Franck BOUIJOUX and Richard REY
7
# This script is distributed under the Gnu General Public License (GPL)
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672 richard 9
# Gestion de la BL pour le filtrage de domaine (via dnsmasq) et d'URL (via Dansguardian)
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# Manage the BL for DnsBlackHole (dnsmasq) and URL filtering (Dansguardian)
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878 richard 12
DIR_CONF="/usr/local/etc"
13
CONF_FILE="$DIR_CONF/alcasar.conf"
854 richard 14
private_ip_mask=`grep PRIVATE_IP= $CONF_FILE|cut -d"=" -f2`
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private_ip_mask=${private_ip_mask:=192.168.182.1/24}
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PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1`			# ALCASAR LAN IP address
308 richard 17
DIR_tmp="/tmp/blacklists"
1015 richard 18
FILE_tmp="/tmp/filesfilter.txt"
19
FILE_ip_tmp="/tmp/filesipfilter.txt"
316 richard 20
DIR_DG="/etc/dansguardian/lists"
21
DIR_DG_BL="$DIR_DG/blacklists"
1015 richard 22
BL_CATEGORIES="$DIR_CONF/alcasar-bl-categories"				# list of names of the 	BL categories
23
WL_CATEGORIES="$DIR_CONF/alcasar-wl-categories"				#'	'		WL	'
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BL_CATEGORIES_ENABLED="$DIR_CONF/alcasar-bl-categories-enabled"		#	'	'	BL enabled categories
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WL_CATEGORIES_ENABLED="$DIR_CONF/alcasar-wl-categories-enabled"		#	'	'	WL enabled categories
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OSSI_DOMAINS_WL="$DIR_DG/blacklists/ossi/domains_wl"			# Domain names for the ossi category
1015 richard 27
DIR_SHARE="/usr/local/share"
28
DIR_DNS_BL="$DIR_SHARE/dnsmasq-bl"					# all the BL in the DNSMASQ format
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DIR_DNS_WL="$DIR_SHARE/dnsmasq-wl"					# all the WL	'	'	'
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DIR_IP_BL="$DIR_SHARE/iptables-bl"					# all the IP addresses of the BL 
1377 richard 31
DIR_IP_WL="$DIR_SHARE/iptables-wl"					# all the IP addresses of the WL 
32
OSSI_WL_IP="$DIR_IP_WL/ossi"						# all the IP addresses of the WL ossi category
1366 richard 33
DIR_DNS_BL_ENABLED="$DIR_SHARE/dnsmasq-bl-enabled"			# symbolic link to the domains BL (only enabled categories)
1015 richard 34
DIR_DNS_WL_ENABLED="$DIR_SHARE/dnsmasq-wl-enabled"			#	'	'	'	WL	'	'	'
1377 richard 35
DIR_IP_BL_ENABLED="$DIR_SHARE/iptables-bl-enabled"			#	'	'	ip BL (only enabled categories)
36
DIR_IP_WL_ENABLED="$DIR_SHARE/iptables-wl-enabled"			#	'	'	ip WL (only enabled categories)
1365 richard 37
DNSMASQ_BL_CONF="/etc/dnsmasq-blacklist.conf"				# conf file of dnsmasq-blacklist
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DNS1=`grep "DNS1" $CONF_FILE | cut -d '=' -f 2` 			# server DNS1 (for WL domain names)
878 richard 39
BL_SERVER="dsi.ut-capitole.fr"
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SED="/bin/sed -i"
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1042 richard 42
# enable/disable the BL & WL categories
308 richard 43
function cat_choice (){
1339 richard 44
	# saving ip files and ossi category
45
	mkdir $DIR_tmp
1377 richard 46
	cp $DIR_IP_BL_ENABLED/ossi-* $DIR_tmp
1339 richard 47
	cp $DIR_IP_BL/ossi $DIR_tmp
1377 richard 48
	rm -rf $DIR_DNS_BL_ENABLED $DIR_DNS_WL_ENABLED $DIR_IP_BL_ENABLED $DIR_IP_WL_ENABLED # cleaning for dnsmasq and iptables
1015 richard 49
	$SED "/\.Include/d" $DIR_DG/bannedsitelist $DIR_DG/bannedurllist # cleaning for DG
1042 richard 50
	$SED "s?^[^#]?#&?g" $BL_CATEGORIES $WL_CATEGORIES # cleaning BL & WL categories file (comment all lines)
1377 richard 51
	mkdir $DIR_DNS_BL_ENABLED $DIR_DNS_WL_ENABLED $DIR_IP_BL_ENABLED $DIR_IP_WL_ENABLED
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	chown apache $DIR_IP_BL_ENABLED $DIR_IP_WL_ENABLED
1015 richard 53
	# process the file $BL_CATEGORIES with the choice of categories 
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	for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` 
313 richard 55
	do
1015 richard 56
		$SED "/\/$ENABLE_CATEGORIE$/d" $BL_CATEGORIES 
314 richard 57
		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $BL_CATEGORIES
1057 richard 58
		ln -s $DIR_DNS_BL/$ENABLE_CATEGORIE.conf $DIR_DNS_BL_ENABLED/$ENABLE_CATEGORIE
1015 richard 59
		ln -s $DIR_IP_BL/$ENABLE_CATEGORIE $DIR_IP_BL_ENABLED/$ENABLE_CATEGORIE
1293 richard 60
		# echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/domains>" >> $DIR_DG/bannedsitelist  # Blacklisted domains are managed by dnsmasq
648 richard 61
		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/urls>" >> $DIR_DG/bannedurllist
313 richard 62
	done
878 richard 63
	sort +0.0 -0.2 $BL_CATEGORIES -o $FILE_tmp
313 richard 64
	mv $FILE_tmp $BL_CATEGORIES
1042 richard 65
	# process the file $WL_CATEGORIES with the choice of categories 
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	for ENABLE_CATEGORIE in `cat $WL_CATEGORIES_ENABLED` 
67
	do
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		$SED "/\/$ENABLE_CATEGORIE$/d" $WL_CATEGORIES 
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		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $WL_CATEGORIES
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		ln -s $DIR_DNS_WL/$ENABLE_CATEGORIE.conf $DIR_DNS_WL_ENABLED/$ENABLE_CATEGORIE
1377 richard 71
		ln -s $DIR_IP_WL/$ENABLE_CATEGORIE $DIR_IP_WL_ENABLED/$ENABLE_CATEGORIE
1042 richard 72
	done
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	sort +0.0 -0.2 $WL_CATEGORIES -o $FILE_tmp
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	mv $FILE_tmp $WL_CATEGORIES
1339 richard 75
	# restoring ip files and ossi category
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	mv $DIR_tmp/ossi $DIR_IP_BL
1377 richard 77
	chown apache $DIR_IP_BL/ossi
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	mv $DIR_tmp/ossi-* $DIR_IP_BL_ENABLED
1339 richard 79
	rm -rf $DIR_tmp
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}
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function bl_enable (){
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	$SED "s/^reportinglevel =.*/reportinglevel = 3/g" /etc/dansguardian/dansguardian.conf
1060 richard 83
	if [ "$PARENT_SCRIPT" != "alcasar-conf.sh" ] # don't launch on install stage
615 richard 84
	then
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		service dansguardian restart
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		service dnsmasq restart
1377 richard 87
		service dnsmasq-blacklist restart
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		service dnsmasq-whitelist restart
615 richard 89
		/usr/local/bin/alcasar-iptables.sh
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	fi
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}
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function bl_disable (){
1015 richard 93
	rm -rf $DIR_DNS_BL_ENABLED/*
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	$SED "s/^reportinglevel =.*/reportinglevel = -1/g" /etc/dansguardian/dansguardian.conf
1071 richard 95
	$SED "/google/d" $DNSMASQ_BL_CONF # remove nosslsearch server
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	$SED "s?^[^#]?#&?g" $DIR_DG/urlregexplist  # remove safe searching
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	$SED "s/^\*ip$/#*ip/g" $DIR_DG/bannedsitelist # remove pureip browsing
1060 richard 98
	if [ "$PARENT_SCRIPT" != "alcasar-conf.sh" ] # don't launch on install stage
615 richard 99
	then
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		service dansguardian restart
634 richard 101
		service dnsmasq restart
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		service dnsmasq-blacklist restart
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		service dnsmasq-whitelist restart
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		/usr/local/bin/alcasar-iptables.sh
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	fi
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}
1377 richard 107
function ip_retrieving (){
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	# retrieving IPs of all domain names for the whitelist
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	index=0
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	if [ ! -d $DIR_IP_WL ]
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	then
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		mkdir $DIR_IP_WL
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	else
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		rm -rf $DIR_IP_WL/*
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	fi
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	echo "Retrieving IPs :"
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	cd $DIR_DNS_WL
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	for category in `ls | cut -d '.' -f 1`
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	do
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		echo -n "$category :"
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		for domain in `cat $category.conf | cut -d '/' -f 2`
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		do
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			echo `host $domain | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}'` >> $DIR_IP_WL/$category.tmp &
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			((index++))
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			echo -n "."
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			if [ $index -eq 100 ]
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			then
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				index=0
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				sleep 1
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			fi
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		done
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	done
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	echo "done"
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	sleep 2
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	cd $DIR_IP_WL
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	for category in `ls`
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	do
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		# one IP per line
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		$SED 's/ /\n/g' $category
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		# add SET syntax
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		$SED 's/^/add whitelist_ip_allowed /g' $category
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		# delete empty lines
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		$SED '/^$/d' $category
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		# delete false entries
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		$SED -r '/([0-9]{1,3}.){3}[0-9]{1,3}/!d' $category
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		# delete duplicate lines
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		sort -u $category > ${category%%.*}
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	done
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	rm -f *.tmp
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}
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function ip_retrieving_ossi (){
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	# retrieving IPs of all domain names for the ossi category
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	> $OSSI_WL_IP
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	for domain in `cat $OSSI_DOMAINS_WL`
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	do
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		echo `host $domain | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}'` >> $OSSI_WL_IP &
157
	done
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	sleep 2
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	# one IP per line
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	$SED 's/ /\n/g' $OSSI_WL_IP
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	# add SET syntax
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	$SED 's/^/add whitelist_ip_allowed /g' $OSSI_WL_IP
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	# delete empty lines
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	$SED '/^$/d' $OSSI_WL_IP
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	# delete false entries
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	$SED -r '/([0-9]{1,3}.){3}[0-9]{1,3}/!d' $OSSI_WL_IP
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}
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usage="Usage: alcasar-bl.sh { -cat_choice or --cat_choice } | { -download or --download } | { -adapt or --adapt } | { -reload or --reload } | { -ip_retrieving or --ip_retrieving } | { -ip_retrieving_ossi or --ip_retrieving_ossi }"
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nb_args=$#
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args=$1
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if [ $nb_args -eq 0 ]
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then
1369 richard 173
	  args="-h"
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fi
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case $args in
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	-\? | -h* | --h*)
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		echo "$usage"
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		exit 0
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		;;
1369 richard 180
	# Retrieve Toulouse BL
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	-cat_choice | --cat_choice)
311 richard 182
		cat_choice
1 root 183
		;;
386 franck 184
	-download | --download)
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		rm -rf /tmp/con_ok.html
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		`/usr/bin/curl $BL_SERVER -# -o /tmp/con_ok.html`
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		if [ ! -e /tmp/con_ok.html ]
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		then
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			echo "Erreur : le serveur de blacklist ($BL_SERVER) n'est pas joignable"
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		else 
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			rm -rf /tmp/con_ok.html $DIR_tmp
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			mkdir $DIR_tmp
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			wget -P $DIR_tmp http://$BL_SERVER/blacklists/download/blacklists.tar.gz
878 richard 194
			md5sum $DIR_tmp/blacklists.tar.gz | cut -d" " -f1 > $DIR_tmp/md5sum
885 richard 195
			chown -R apache:apache $DIR_tmp
878 richard 196
		fi
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		;;		
1293 richard 198
	# Adapt Toulouse BL to ALCASAR architecture (dnsmasq + DG + iptables)
878 richard 199
	-adapt | --adapt)
1365 richard 200
		echo -n "Toulouse BlackList migration process. Please wait : "
1371 richard 201
		if [ ! -e $DIR_SHARE/ossi-ip-wl ]
1365 richard 202
		then
1369 richard 203
			touch $DIR_SHARE/ossi-ip-wl
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			chown apache $DIR_SHARE/ossi-ip-wl
1365 richard 205
		fi
1371 richard 206
		if [ -f $DIR_tmp/blacklists.tar.gz ] # when downloading the last version of the BL
878 richard 207
		then
1366 richard 208
			[ -d $DIR_DG_BL/ossi ] && mv $DIR_DG_BL/ossi $DIR_tmp
1369 richard 209
			[ -e $DIR_IP_BL/ossi ] && mv $DIR_IP_BL/ossi $DIR_tmp/ossi-ip-bl
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			rm -rf $DIR_DG_BL $DIR_IP_BL
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			mkdir $DIR_DG_BL $DIR_IP_BL
878 richard 212
			tar zxf $DIR_tmp/blacklists.tar.gz --directory=$DIR_DG/
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			[ -d $DIR_tmp/ossi ] && mv -f $DIR_tmp/ossi $DIR_DG_BL/
685 richard 214
		fi
1042 richard 215
		rm -f $BL_CATEGORIES $WL_CATEGORIES $WL_CATEGORIES_ENABLED
1015 richard 216
		rm -rf $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL
1042 richard 217
		touch $BL_CATEGORIES $WL_CATEGORIES $WL_CATEGORIES_ENABLED
1015 richard 218
		mkdir $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL
1042 richard 219
		chown -R dansguardian:apache $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED
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		chmod -R g+w $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED
1015 richard 221
		find $DIR_DG_BL/ -type f -name domains > $FILE_tmp # retrieve directory name where a domain file exist
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		$SED "s?\/domains??g" $FILE_tmp # remove "/domains" suffix
1042 richard 223
		for dir_categorie in `cat $FILE_tmp` # create the blacklist and the whitelist files
878 richard 224
		do
1015 richard 225
			categorie=`echo $dir_categorie|cut -d "/" -f6`
226
			categorie_type=`grep -A1 ^NAME:[$' '$'\t']*$categorie $DIR_DG_BL/global_usage | grep ^DEFAULT_TYPE | cut -d":" -f2 | tr -d " \t"`
227
			if [ "$categorie_type" == "white" ]
878 richard 228
			then
1015 richard 229
				echo "$dir_categorie" >> $WL_CATEGORIES 
1042 richard 230
				echo `basename $dir_categorie` >> $WL_CATEGORIES_ENABLED  # by default all WL are enabled 
878 richard 231
			else
1015 richard 232
				echo "$dir_categorie" >> $BL_CATEGORIES
878 richard 233
			fi
234
		done
235
		rm -f $FILE_tmp
1057 richard 236
		# Verify that the enabled categories are effectively in the BL (need after an update of the BL)
237
		for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` 
238
		do
239
			ok=`grep /$ENABLE_CATEGORIE$ $BL_CATEGORIES|wc -l`
240
			if [ $ok != "1" ] 
241
			then
242
				$SED "/^$ENABLE_CATEGORIE$/d" $BL_CATEGORIES_ENABLED
243
			fi
244
		done
1293 richard 245
		# Creation of DNSMASQ and Iptables BL and WL
1015 richard 246
		for LIST in $BL_CATEGORIES $WL_CATEGORIES	# for each list (bl and wl)
854 richard 247
		do
1015 richard 248
			for PATH_FILE in `cat $LIST` # for each category
249
			do
250
				DOMAINE=`basename $PATH_FILE`
251
				echo -n "$DOMAINE, "
252
		  		if [ ! -f $PATH_FILE/urls ] # create 'urls' file if it doesn't exist
253
				then
254
					touch $PATH_FILE/urls
255
					chown dansguardian:apache $PATH_FILE/urls
256
				fi
257
				$SED "s/\.\{2,10\}/\./g" $PATH_FILE/domains $PATH_FILE/urls # correct some syntax errors
1332 richard 258
 
1377 richard 259
				# retrieving ip addresses for iptables
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				# create a set save for the selected category
1332 richard 261
				awk '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/{print "add blacklist_ip_blocked " $0}' $PATH_FILE/domains > $FILE_ip_tmp
1015 richard 262
				# for dnsmask, remove IP addesses, accented characters and commented lines.
1293 richard 263
				egrep  -v "^([0-9]{1,3}\.){3}[0-9]{1,3}$" $PATH_FILE/domains > $FILE_tmp
1015 richard 264
				$SED "/[äâëêïîöôüû]/d" $FILE_tmp
265
				$SED "/^#.*/d" $FILE_tmp
266
				if [ "$LIST" == "$BL_CATEGORIES" ]
267
				then
1365 richard 268
					# adapt to the dnsmasq syntax for the blacklist
269
					$SED "s?.*?address=/&/$PRIVATE_IP?g" $FILE_tmp 
1015 richard 270
					mv $FILE_tmp $DIR_DNS_BL/$DOMAINE.conf
271
					mv $FILE_ip_tmp $DIR_IP_BL/$DOMAINE
272
				else
1365 richard 273
					# adapt to the dnsmasq syntax for the whitelist
274
					$SED "s?.*?server=/&/$DNS1?g" $FILE_tmp 
1015 richard 275
					mv $FILE_tmp $DIR_DNS_WL/$DOMAINE.conf
276
				fi
277
			done
854 richard 278
		done
1015 richard 279
		rm -f $FILE_tmp $FILE_ip_tmp
1366 richard 280
		# Restoring ossi files
1369 richard 281
		[ -e $DIR_tmp/ossi-ip-bl ] && mv $DIR_tmp/ossi-ip-bl $DIR_IP_BL/ossi
1339 richard 282
		rm -rf $DIR_tmp
854 richard 283
		echo
654 richard 284
		;;
1015 richard 285
	# reload when categories are changed 
386 franck 286
	-reload | --reload)
1015 richard 287
		# for DG
316 richard 288
		chown -R dansguardian:apache $DIR_DG_BL/ossi
289
		chmod -R g+w $DIR_DG_BL/ossi
311 richard 290
		cat_choice
1042 richard 291
		#  for dnsmasq (rehabited domain names)
316 richard 292
		if [ `wc -w $DIR_DG/exceptionsitelist|cut -d " " -f1` != "0" ]
311 richard 293
		then
316 richard 294
			for i in `cat $DIR_DG/exceptionsitelist`
311 richard 295
			do
1015 richard 296
				$SED "/$i/d" $DIR_DNS_BL/*
311 richard 297
			done
298
		fi
1015 richard 299
		cp -f $DIR_DG_BL/ossi/domains $DIR_DNS_BL/ossi.conf
300
		$SED "s?.*?address=/&/$PRIVATE_IP?g" $DIR_DNS_BL/ossi.conf
1042 richard 301
		cp -f $DIR_DG_BL/ossi/domains_wl $DIR_DNS_WL/ossi.conf
1365 richard 302
		bl_enable
503 richard 303
		;;
1377 richard 304
	# retrieving IPs of all domain names for the whitelist
305
	-ip_retrieving | --ip_retrieving)	
306
		ip_retrieving
307
		;;
308
	# retrieving IPs of all domain names for the whitelist ossi category
309
	-ip_retrieving_ossi | --ip_retrieving_ossi)	
310
		ip_retrieving_ossi
311
		;;
1 root 312
	*)
313
		echo "Argument inconnu :$1";
314
		echo "$usage"
315
		exit 1
316
		;;
317
esac
318