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672 richard 1
#/bin/bash
1015 richard 2
 
63 franck 3
# $Id: alcasar-bl.sh 1898 2016-05-18 16:33:55Z richard $
4
 
672 richard 5
# alcasar-bl.sh
6
# by Franck BOUIJOUX and Richard REY
7
# This script is distributed under the Gnu General Public License (GPL)
1 root 8
 
672 richard 9
# Gestion de la BL pour le filtrage de domaine (via dnsmasq) et d'URL (via Dansguardian)
10
# Manage the BL for DnsBlackHole (dnsmasq) and URL filtering (Dansguardian)
11
 
878 richard 12
DIR_CONF="/usr/local/etc"
13
CONF_FILE="$DIR_CONF/alcasar.conf"
854 richard 14
private_ip_mask=`grep PRIVATE_IP= $CONF_FILE|cut -d"=" -f2`
15
private_ip_mask=${private_ip_mask:=192.168.182.1/24}
16
PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1`			# ALCASAR LAN IP address
308 richard 17
DIR_tmp="/tmp/blacklists"
1852 raphael.pi 18
DIR_WL_tmp="/tmp/whitelists"
1015 richard 19
FILE_tmp="/tmp/filesfilter.txt"
20
FILE_ip_tmp="/tmp/filesipfilter.txt"
316 richard 21
DIR_DG="/etc/dansguardian/lists"
22
DIR_DG_BL="$DIR_DG/blacklists"
1015 richard 23
BL_CATEGORIES="$DIR_CONF/alcasar-bl-categories"				# list of names of the 	BL categories
24
WL_CATEGORIES="$DIR_CONF/alcasar-wl-categories"				#'	'		WL	'
25
BL_CATEGORIES_ENABLED="$DIR_CONF/alcasar-bl-categories-enabled"		#	'	'	BL enabled categories
26
WL_CATEGORIES_ENABLED="$DIR_CONF/alcasar-wl-categories-enabled"		#	'	'	WL enabled categories
27
DIR_SHARE="/usr/local/share"
28
DIR_DNS_BL="$DIR_SHARE/dnsmasq-bl"					# all the BL in the DNSMASQ format
29
DIR_DNS_WL="$DIR_SHARE/dnsmasq-wl"					# all the WL	'	'	'
30
DIR_IP_BL="$DIR_SHARE/iptables-bl"					# all the IP addresses of the BL 
1366 richard 31
DIR_DNS_BL_ENABLED="$DIR_SHARE/dnsmasq-bl-enabled"			# symbolic link to the domains BL (only enabled categories)
1015 richard 32
DIR_DNS_WL_ENABLED="$DIR_SHARE/dnsmasq-wl-enabled"			#	'	'	'	WL	'	'	'
1377 richard 33
DIR_IP_BL_ENABLED="$DIR_SHARE/iptables-bl-enabled"			#	'	'	ip BL (only enabled categories)
1852 raphael.pi 34
DIR_IP_WL_ENABLED="$DIR_SHARE/iptables-wl-enabled"			#	'	'	ip WL (ossi and ossi-* imported from ACC)
35
DIR_IP_WL="$DIR_SHARE/iptables-wl-enabled"			#	'	'	ip WL (ossi and ossi-* imported from ACC)
1365 richard 36
DNSMASQ_BL_CONF="/etc/dnsmasq-blacklist.conf"				# conf file of dnsmasq-blacklist
37
DNS1=`grep "DNS1" $CONF_FILE | cut -d '=' -f 2` 			# server DNS1 (for WL domain names)
878 richard 38
BL_SERVER="dsi.ut-capitole.fr"
1 root 39
SED="/bin/sed -i"
637 richard 40
 
1042 richard 41
# enable/disable the BL & WL categories
308 richard 42
function cat_choice (){
1393 richard 43
	# saving ossi category
1339 richard 44
	mkdir $DIR_tmp
1393 richard 45
	cp $DIR_IP_BL/ossi $DIR_tmp
1855 raphael.pi 46
 
1864 raphael.pi 47
	#ip BL ENABLE
1393 richard 48
	if [ -d $DIR_IP_BL_ENABLED ]
1386 richard 49
	then
1393 richard 50
		for file in `ls -1 $DIR_IP_BL_ENABLED | grep -v "^ossi-*"`
51
		do
52
			rm -f $DIR_IP_BL_ENABLED/$file
53
		done
54
	else
55
		mkdir $DIR_IP_BL_ENABLED
56
		chown apache $DIR_IP_BL_ENABLED
1386 richard 57
	fi
1852 raphael.pi 58
 
1864 raphael.pi 59
 
60
	#dns BL ENABLED
61
	if [ -d $DIR_DNS_BL_ENABLED ]
62
	then
63
		for file in `ls -1 $DIR_DNS_BL_ENABLED | grep -v "^ossi-*"`
64
		do
65
			rm -f $DIR_DNS_BL_ENABLED/$file
66
		done
67
	else
68
		mkdir $DIR_DNS_BL_ENABLED
69
		chown apache $DIR_DNS_BL_ENABLED
70
	fi
71
 
72
 
73
	#ip WL ENABLE
1852 raphael.pi 74
	if [ -d $DIR_IP_WL_ENABLED ]
75
	then
1864 raphael.pi 76
		for file in `ls -1 $DIR_IP_WL_ENABLED | grep -v "^ossi*"`
1852 raphael.pi 77
		do
78
			rm -f $DIR_IP_WL_ENABLED/$file
79
		done
80
	else
81
		mkdir $DIR_IP_WL_ENABLED
82
		chown apache $DIR_IP_WL_ENABLED
1864 raphael.pi 83
		touch $DIR_IP_WL_ENABLED/ossi
1857 raphael.pi 84
		chown apache $DIR_IP_WL_ENABLED/ossi
85
	fi
86
 
1864 raphael.pi 87
	#dns WL ENABLED
1852 raphael.pi 88
	if [ -d $DIR_DNS_WL_ENABLED ]
89
	then
90
		for file in `ls -1 $DIR_DNS_WL_ENABLED | grep -v "^ossi-*"`
91
		do
92
			rm -f $DIR_DNS_WL_ENABLED/$file
93
		done
94
	else
95
		mkdir $DIR_DNS_WL_ENABLED
96
		chown apache $DIR_DNS_WL_ENABLED
97
	fi
1864 raphael.pi 98
 
99
	#dns WL ossi.conf 
100
	if [ ! -e $DIR_DNS_WL/ossi.conf ]
101
	then
102
		touch $DIR_DNS_WL/ossi.conf
103
		chown apache $DIR_DNS_WL/ossi.conf
1886 raphael.pi 104
		if [ ! -e $DIR_DNS_WL_ENABLED/ossi ]
105
		then
1864 raphael.pi 106
		ln -s $DIR_DNS_WL/ossi.conf $DIR_DNS_WL_ENABLED/ossi
1886 raphael.pi 107
		fi
1864 raphael.pi 108
	fi
109
 
1870 raphael.pi 110
	# update categories with rsync
111
	if [ ! -e $DIR_CONF/update_cat.conf ]
112
	then
113
		touch $DIR_CONF/update_cat.conf
114
		chown root:apache $DIR_CONF/update_cat.conf
115
		chmod 660 $DIR_CONF/update_cat.conf
116
	fi
1864 raphael.pi 117
 
1015 richard 118
	$SED "/\.Include/d" $DIR_DG/bannedsitelist $DIR_DG/bannedurllist # cleaning for DG
1042 richard 119
	$SED "s?^[^#]?#&?g" $BL_CATEGORIES $WL_CATEGORIES # cleaning BL & WL categories file (comment all lines)
1015 richard 120
	# process the file $BL_CATEGORIES with the choice of categories 
121
	for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` 
313 richard 122
	do
1015 richard 123
		$SED "/\/$ENABLE_CATEGORIE$/d" $BL_CATEGORIES 
314 richard 124
		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $BL_CATEGORIES
1395 richard 125
		ln -sf $DIR_DNS_BL/$ENABLE_CATEGORIE.conf $DIR_DNS_BL_ENABLED/$ENABLE_CATEGORIE
126
		ln -sf $DIR_IP_BL/$ENABLE_CATEGORIE $DIR_IP_BL_ENABLED/$ENABLE_CATEGORIE
1293 richard 127
		# echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/domains>" >> $DIR_DG/bannedsitelist  # Blacklisted domains are managed by dnsmasq
648 richard 128
		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/urls>" >> $DIR_DG/bannedurllist
313 richard 129
	done
878 richard 130
	sort +0.0 -0.2 $BL_CATEGORIES -o $FILE_tmp
313 richard 131
	mv $FILE_tmp $BL_CATEGORIES
1042 richard 132
	# process the file $WL_CATEGORIES with the choice of categories 
133
	for ENABLE_CATEGORIE in `cat $WL_CATEGORIES_ENABLED` 
134
	do
135
		$SED "/\/$ENABLE_CATEGORIE$/d" $WL_CATEGORIES 
136
		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $WL_CATEGORIES
1395 richard 137
		ln -sf $DIR_DNS_WL/$ENABLE_CATEGORIE.conf $DIR_DNS_WL_ENABLED/$ENABLE_CATEGORIE
1042 richard 138
	done
139
	sort +0.0 -0.2 $WL_CATEGORIES -o $FILE_tmp
140
	mv $FILE_tmp $WL_CATEGORIES
1852 raphael.pi 141
 
142
	# restoring ip files and ossi category BL/WL
1339 richard 143
	mv $DIR_tmp/ossi $DIR_IP_BL
1377 richard 144
	chown apache $DIR_IP_BL/ossi
1339 richard 145
	rm -rf $DIR_tmp
1852 raphael.pi 146
 
308 richard 147
}
1482 richard 148
 
1870 raphael.pi 149
usage="Usage: alcasar-bl.sh { -cat_choice or --cat_choice } | { -download or --download } | { -adapt or --adapt } | { -reload or --reload } | { -update_cat or --update_cat }"
1 root 150
nb_args=$#
151
args=$1
152
if [ $nb_args -eq 0 ]
153
then
1369 richard 154
	  args="-h"
1 root 155
fi
156
case $args in
157
	-\? | -h* | --h*)
158
		echo "$usage"
159
		exit 0
160
		;;
1873 richard 161
	# Retrieve Toulouse University BL
386 franck 162
	-download | --download)
1 root 163
		rm -rf /tmp/con_ok.html
164
		`/usr/bin/curl $BL_SERVER -# -o /tmp/con_ok.html`
165
		if [ ! -e /tmp/con_ok.html ]
166
		then
167
			echo "Erreur : le serveur de blacklist ($BL_SERVER) n'est pas joignable"
168
		else 
878 richard 169
			rm -rf /tmp/con_ok.html $DIR_tmp
170
			mkdir $DIR_tmp
885 richard 171
			wget -P $DIR_tmp http://$BL_SERVER/blacklists/download/blacklists.tar.gz
878 richard 172
			md5sum $DIR_tmp/blacklists.tar.gz | cut -d" " -f1 > $DIR_tmp/md5sum
885 richard 173
			chown -R apache:apache $DIR_tmp
878 richard 174
		fi
175
		;;		
1488 richard 176
	# enable/disable categories (used only during the alcasar install process)
177
	-cat_choice | --cat_choice)
178
		cat_choice
179
		;;
1873 richard 180
	# Adapt Toulouse University BL to ALCASAR architecture (dnsmasq + DG + iptables)
878 richard 181
	-adapt | --adapt)
1873 richard 182
		echo -n "Adaptation process of Toulouse University blackList. Please wait : "
1864 raphael.pi 183
 
184
 
1371 richard 185
		if [ -f $DIR_tmp/blacklists.tar.gz ] # when downloading the last version of the BL
878 richard 186
		then
1366 richard 187
			[ -d $DIR_DG_BL/ossi ] && mv $DIR_DG_BL/ossi $DIR_tmp
1369 richard 188
			[ -e $DIR_IP_BL/ossi ] && mv $DIR_IP_BL/ossi $DIR_tmp/ossi-ip-bl
189
			rm -rf $DIR_DG_BL $DIR_IP_BL
190
			mkdir $DIR_DG_BL $DIR_IP_BL
878 richard 191
			tar zxf $DIR_tmp/blacklists.tar.gz --directory=$DIR_DG/
192
			[ -d $DIR_tmp/ossi ] && mv -f $DIR_tmp/ossi $DIR_DG_BL/
685 richard 193
		fi
1042 richard 194
		rm -f $BL_CATEGORIES $WL_CATEGORIES $WL_CATEGORIES_ENABLED
1015 richard 195
		rm -rf $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL
1042 richard 196
		touch $BL_CATEGORIES $WL_CATEGORIES $WL_CATEGORIES_ENABLED
1015 richard 197
		mkdir $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL
1042 richard 198
		chown -R dansguardian:apache $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED
199
		chmod -R g+w $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED
1015 richard 200
		find $DIR_DG_BL/ -type f -name domains > $FILE_tmp # retrieve directory name where a domain file exist
201
		$SED "s?\/domains??g" $FILE_tmp # remove "/domains" suffix
1042 richard 202
		for dir_categorie in `cat $FILE_tmp` # create the blacklist and the whitelist files
878 richard 203
		do
1015 richard 204
			categorie=`echo $dir_categorie|cut -d "/" -f6`
205
			categorie_type=`grep -A1 ^NAME:[$' '$'\t']*$categorie $DIR_DG_BL/global_usage | grep ^DEFAULT_TYPE | cut -d":" -f2 | tr -d " \t"`
206
			if [ "$categorie_type" == "white" ]
878 richard 207
			then
1015 richard 208
				echo "$dir_categorie" >> $WL_CATEGORIES 
1042 richard 209
				echo `basename $dir_categorie` >> $WL_CATEGORIES_ENABLED  # by default all WL are enabled 
878 richard 210
			fi
1811 richard 211
			echo "$dir_categorie" >> $BL_CATEGORIES # By default all categories are in BL
878 richard 212
		done
213
		rm -f $FILE_tmp
1057 richard 214
		# Verify that the enabled categories are effectively in the BL (need after an update of the BL)
215
		for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` 
216
		do
217
			ok=`grep /$ENABLE_CATEGORIE$ $BL_CATEGORIES|wc -l`
218
			if [ $ok != "1" ] 
219
			then
220
				$SED "/^$ENABLE_CATEGORIE$/d" $BL_CATEGORIES_ENABLED
221
			fi
222
		done
1293 richard 223
		# Creation of DNSMASQ and Iptables BL and WL
1015 richard 224
		for LIST in $BL_CATEGORIES $WL_CATEGORIES	# for each list (bl and wl)
854 richard 225
		do
1015 richard 226
			for PATH_FILE in `cat $LIST` # for each category
227
			do
228
				DOMAINE=`basename $PATH_FILE`
229
				echo -n "$DOMAINE, "
230
		  		if [ ! -f $PATH_FILE/urls ] # create 'urls' file if it doesn't exist
231
				then
232
					touch $PATH_FILE/urls
233
					chown dansguardian:apache $PATH_FILE/urls
234
				fi
235
				$SED "s/\.\{2,10\}/\./g" $PATH_FILE/domains $PATH_FILE/urls # correct some syntax errors
1383 richard 236
				# extract ip addresses for iptables
1867 raphael.pi 237
				awk '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/{print "add bl_ip_blocked " $0}' $PATH_FILE/domains > $FILE_ip_tmp
1015 richard 238
				# for dnsmask, remove IP addesses, accented characters and commented lines.
1293 richard 239
				egrep  -v "^([0-9]{1,3}\.){3}[0-9]{1,3}$" $PATH_FILE/domains > $FILE_tmp
1015 richard 240
				$SED "/[äâëêïîöôüû]/d" $FILE_tmp
241
				$SED "/^#.*/d" $FILE_tmp
242
				if [ "$LIST" == "$BL_CATEGORIES" ]
243
				then
1365 richard 244
					# adapt to the dnsmasq syntax for the blacklist
245
					$SED "s?.*?address=/&/$PRIVATE_IP?g" $FILE_tmp 
1015 richard 246
					mv $FILE_tmp $DIR_DNS_BL/$DOMAINE.conf
247
					mv $FILE_ip_tmp $DIR_IP_BL/$DOMAINE
248
				else
1365 richard 249
					# adapt to the dnsmasq syntax for the whitelist
250
					$SED "s?.*?server=/&/$DNS1?g" $FILE_tmp 
1015 richard 251
					mv $FILE_tmp $DIR_DNS_WL/$DOMAINE.conf
252
				fi
253
			done
854 richard 254
		done
1015 richard 255
		rm -f $FILE_tmp $FILE_ip_tmp
1383 richard 256
		# Restoring ossi file of BL IP
1369 richard 257
		[ -e $DIR_tmp/ossi-ip-bl ] && mv $DIR_tmp/ossi-ip-bl $DIR_IP_BL/ossi
1339 richard 258
		rm -rf $DIR_tmp
854 richard 259
		echo
654 richard 260
		;;
1898 richard 261
	# update the categories which are written in "/usr/local/etc/update_cat.conf" with rsync
262
	-update_cat | --update_cat)
1874 raphael.pi 263
		if [ $(cat /usr/local/etc/update_cat.conf | wc -l) -ne 0 ]
264
		then
1898 richard 265
			echo -n "Updating categories in /usr/local/etc/update_cat.conf ..."
266
			cat /usr/local/etc/update_cat.conf | while read LIGNE_RSYNC
267
			do
268
				CATEGORIE=$(echo $LIGNE_RSYNC | cut -d' ' -f1)
269
				URL=$(echo $LIGNE_RSYNC | cut -d' ' -f2)
270
				PATH_FILE=$(find $DIR_DG_BL/ -type d -name $CATEGORIE) # retrieve directory name of the category
271
				rsync -rv $URL $(dirname $PATH_FILE ) #rsync inside of the blacklist directory
272
				# Creation of DNSMASQ and Iptables BL and WL
273
				DOMAINE=$(basename $PATH_FILE)
274
				# correct some synthaxes
275
				$SED "s/\.\{2,10\}/\./g" $PATH_FILE/domains $PATH_FILE/urls
276
				# extract ip addresses for iptables
277
				awk '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/{print "add bl_ip_blocked " $0}' $PATH_FILE/domains > $FILE_ip_tmp
278
				# for dnsmask, remove IP addresses, accentuated characters and commented lines.
279
				egrep  -v "^([0-9]{1,3}\.){3}[0-9]{1,3}$" $PATH_FILE/domains > $FILE_tmp
280
				$SED "/[äâëêïîöôüû]/d" $FILE_tmp
281
				$SED "/^#.*/d" $FILE_tmp
282
				black=`grep black $PATH_FILE/usage |wc -l`
283
				if [ $black == "1" ]
284
				then
285
					# adapt to the dnsmasq syntax for the blacklist
286
					$SED "s?.*?address=/&/$PRIVATE_IP?g" $FILE_tmp 
287
					mv $FILE_tmp $DIR_DNS_BL/$DOMAINE.conf
288
					mv $FILE_ip_tmp $DIR_IP_BL/$DOMAINE
289
				else
290
					# adapt to the dnsmasq syntax for the whitelist
291
					$SED "s?.*?server=/&/$DNS1?g" $FILE_tmp 
292
					mv $FILE_tmp $DIR_DNS_WL/$DOMAINE.conf
293
				fi
294
				rm -f $FILE_tmp $FILE_ip_tmp
295
			done
296
			/usr/bin/systemctl restart dnsmasq-whitelist
297
			/usr/bin/systemctl restart dnsmasq-blacklist
298
			/usr/bin/systemctl restart dansguardian
299
			/usr/local/bin/alcasar-iptables.sh
1867 raphael.pi 300
		else
1898 richard 301
			  echo -n "/usr/local/etc/update_cat.conf is empty ..."
1867 raphael.pi 302
		fi
1874 raphael.pi 303
		echo 
1867 raphael.pi 304
		;;
1015 richard 305
	# reload when categories are changed 
386 franck 306
	-reload | --reload)
1015 richard 307
		# for DG
316 richard 308
		chown -R dansguardian:apache $DIR_DG_BL/ossi
309
		chmod -R g+w $DIR_DG_BL/ossi
311 richard 310
		cat_choice
1042 richard 311
		#  for dnsmasq (rehabited domain names)
316 richard 312
		if [ `wc -w $DIR_DG/exceptionsitelist|cut -d " " -f1` != "0" ]
311 richard 313
		then
316 richard 314
			for i in `cat $DIR_DG/exceptionsitelist`
311 richard 315
			do
1015 richard 316
				$SED "/$i/d" $DIR_DNS_BL/*
311 richard 317
			done
318
		fi
1015 richard 319
		cp -f $DIR_DG_BL/ossi/domains $DIR_DNS_BL/ossi.conf
320
		$SED "s?.*?address=/&/$PRIVATE_IP?g" $DIR_DNS_BL/ossi.conf
1810 raphael.pi 321
		$SED "s?.*?server=/&/$DNS1?g" $DIR_DNS_WL/ossi.conf
322
 
1574 richard 323
		/usr/bin/systemctl restart dnsmasq-blacklist
324
		/usr/bin/systemctl restart dnsmasq-whitelist
1488 richard 325
		/usr/local/bin/alcasar-iptables.sh
503 richard 326
		;;
1 root 327
	*)
328
		echo "Argument inconnu :$1";
329
		echo "$usage"
330
		exit 1
331
		;;
332
esac
333
 
1857 raphael.pi 334
 
1867 raphael.pi 335
 
1874 raphael.pi 336