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672 richard 1
#/bin/bash
1015 richard 2
 
63 franck 3
# $Id: alcasar-bl.sh 1931 2016-06-09 21:09:15Z 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="$DIR_CONF/alcasar-bl-categories"				# list of names of the 	BL categories
1926 richard 24
WL_CATEGORIES="$DIR_CONF/alcasar-wl-categories"				#	'	'	WL categories
1015 richard 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="$DIR_SHARE/iptables-bl"					# all the IP addresses of the BL 
1899 raphael.pi 31
DIR_IP_WL="$DIR_SHARE/iptables-wl"					# IP ossi disabled WL 
1366 richard 32
DIR_DNS_BL_ENABLED="$DIR_SHARE/dnsmasq-bl-enabled"			# symbolic link to the domains BL (only enabled categories)
1931 richard 33
DIR_DNS_WL_ENABLED="$DIR_SHARE/dnsmasq-wl-enabled"			#	'	'	'	WL	'	'
1377 richard 34
DIR_IP_BL_ENABLED="$DIR_SHARE/iptables-bl-enabled"			#	'	'	ip BL (only enabled categories)
1852 raphael.pi 35
DIR_IP_WL_ENABLED="$DIR_SHARE/iptables-wl-enabled"			#	'	'	ip WL (ossi and ossi-* imported from ACC)
1365 richard 36
DNS1=`grep "DNS1" $CONF_FILE | cut -d '=' -f 2` 			# server DNS1 (for WL domain names)
878 richard 37
BL_SERVER="dsi.ut-capitole.fr"
1 root 38
SED="/bin/sed -i"
637 richard 39
 
1042 richard 40
# enable/disable the BL & WL categories
308 richard 41
function cat_choice (){
1931 richard 42
	mkdir -p $DIR_tmp
43
	for LIST in $DIR_IP_BL_ENABLED $DIR_DNS_BL_ENABLED $DIR_IP_WL_ENABLED $DIR_DNS_WL_ENABLED
1930 richard 44
	do
1931 richard 45
		rm -rf $LIST/*
1930 richard 46
	done
1870 raphael.pi 47
	# update categories with rsync
48
	if [ ! -e $DIR_CONF/update_cat.conf ]
49
	then
50
		touch $DIR_CONF/update_cat.conf
51
		chown root:apache $DIR_CONF/update_cat.conf
52
		chmod 660 $DIR_CONF/update_cat.conf
53
	fi
1015 richard 54
	$SED "/\.Include/d" $DIR_DG/bannedsitelist $DIR_DG/bannedurllist # cleaning for DG
1042 richard 55
	$SED "s?^[^#]?#&?g" $BL_CATEGORIES $WL_CATEGORIES # cleaning BL & WL categories file (comment all lines)
1912 richard 56
 
1015 richard 57
	# process the file $BL_CATEGORIES with the choice of categories 
58
	for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` 
313 richard 59
	do
1015 richard 60
		$SED "/\/$ENABLE_CATEGORIE$/d" $BL_CATEGORIES 
314 richard 61
		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $BL_CATEGORIES
1395 richard 62
		ln -sf $DIR_DNS_BL/$ENABLE_CATEGORIE.conf $DIR_DNS_BL_ENABLED/$ENABLE_CATEGORIE
63
		ln -sf $DIR_IP_BL/$ENABLE_CATEGORIE $DIR_IP_BL_ENABLED/$ENABLE_CATEGORIE
1293 richard 64
		# echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/domains>" >> $DIR_DG/bannedsitelist  # Blacklisted domains are managed by dnsmasq
648 richard 65
		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/urls>" >> $DIR_DG/bannedurllist
313 richard 66
	done
1931 richard 67
	# add ossi categories 
68
	for OSSI_CATEGORIE in `ls $DIR_DNS_BL | grep ossi`
69
	do
70
		ln -sf $DIR_DNS_BL/$OSSI_CATEGORIE $DIR_DNS_BL_ENABLED/$OSSI_CATEGORIE
71
	done
72
	for OSSI_CATEGORIE in `ls $DIR_IP_BL | grep ossi`
73
	do
74
		ln -sf $DIR_IP_BL/$OSSI_CATEGORIE $DIR_IP_BL_ENABLED/$OSSI_CATEGORIE
75
	done
76
 
878 richard 77
	sort +0.0 -0.2 $BL_CATEGORIES -o $FILE_tmp
313 richard 78
	mv $FILE_tmp $BL_CATEGORIES
1912 richard 79
 
1042 richard 80
	# process the file $WL_CATEGORIES with the choice of categories 
81
	for ENABLE_CATEGORIE in `cat $WL_CATEGORIES_ENABLED` 
82
	do
83
		$SED "/\/$ENABLE_CATEGORIE$/d" $WL_CATEGORIES 
84
		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $WL_CATEGORIES
1395 richard 85
		ln -sf $DIR_DNS_WL/$ENABLE_CATEGORIE.conf $DIR_DNS_WL_ENABLED/$ENABLE_CATEGORIE
1042 richard 86
	done
1931 richard 87
	# add ossi categories 
88
	for OSSI_CATEGORIE in `ls $DIR_DNS_WL | grep ossi`
89
	do
90
		ln -sf $DIR_DNS_WL/$OSSI_CATEGORIE $DIR_DNS_WL_ENABLED/$OSSI_CATEGORIE
91
	done
92
	for OSSI_CATEGORIE in `ls $DIR_IP_WL | grep ossi`
93
	do
94
		ln -sf $DIR_IP_WL/$OSSI_CATEGORIE $DIR_IP_WL_ENABLED/$OSSI_CATEGORIE
95
	done
1042 richard 96
	sort +0.0 -0.2 $WL_CATEGORIES -o $FILE_tmp
97
	mv $FILE_tmp $WL_CATEGORIES
308 richard 98
}
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1870 raphael.pi 100
usage="Usage: alcasar-bl.sh { -cat_choice or --cat_choice } | { -download or --download } | { -adapt or --adapt } | { -reload or --reload } | { -update_cat or --update_cat }"
1 root 101
nb_args=$#
102
args=$1
103
if [ $nb_args -eq 0 ]
104
then
1369 richard 105
	  args="-h"
1 root 106
fi
107
case $args in
108
	-\? | -h* | --h*)
109
		echo "$usage"
110
		exit 0
111
		;;
1873 richard 112
	# Retrieve Toulouse University BL
386 franck 113
	-download | --download)
1 root 114
		rm -rf /tmp/con_ok.html
115
		`/usr/bin/curl $BL_SERVER -# -o /tmp/con_ok.html`
116
		if [ ! -e /tmp/con_ok.html ]
117
		then
118
			echo "Erreur : le serveur de blacklist ($BL_SERVER) n'est pas joignable"
119
		else 
878 richard 120
			rm -rf /tmp/con_ok.html $DIR_tmp
121
			mkdir $DIR_tmp
885 richard 122
			wget -P $DIR_tmp http://$BL_SERVER/blacklists/download/blacklists.tar.gz
878 richard 123
			md5sum $DIR_tmp/blacklists.tar.gz | cut -d" " -f1 > $DIR_tmp/md5sum
885 richard 124
			chown -R apache:apache $DIR_tmp
878 richard 125
		fi
126
		;;		
1488 richard 127
	# enable/disable categories (used only during the alcasar install process)
128
	-cat_choice | --cat_choice)
129
		cat_choice
130
		;;
1873 richard 131
	# Adapt Toulouse University BL to ALCASAR architecture (dnsmasq + DG + iptables)
878 richard 132
	-adapt | --adapt)
1873 richard 133
		echo -n "Adaptation process of Toulouse University blackList. Please wait : "
1371 richard 134
		if [ -f $DIR_tmp/blacklists.tar.gz ] # when downloading the last version of the BL
878 richard 135
		then
1930 richard 136
			# keep custom files (ossi) 
137
			for x in $(ls -1 $DIR_DG_BL | grep "^ossi-*")
138
			do
139
				mv $DIR_DG_BL/$x $DIR_tmp
140
			done
1369 richard 141
			rm -rf $DIR_DG_BL $DIR_IP_BL
142
			mkdir $DIR_DG_BL $DIR_IP_BL
878 richard 143
			tar zxf $DIR_tmp/blacklists.tar.gz --directory=$DIR_DG/
1930 richard 144
			# Add the two local categories (ossi-bl & ossi-wl) to the usage file
145
			cat << EOF >> $DIR_DG_BL/global_usage 
1927 richard 146
 
147
NAME: ossi-bl
148
DEFAULT_TYPE: black
149
SOURCE: ALCASAR Team
150
DESC FR: sites blacklistés ajoutés localement
151
NAME RU: ossi-bl
152
NAME EN: blacklisted sites add locally
153
NAME FR: ossi-bl
154
NAME IT: ossi-bl
155
NAME NL: ossi-bl
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NAME DE: ossi-bl
157
NAME ES: ossi-bl
158
 
159
NAME: ossi-wl
160
DEFAULT_TYPE: white
161
SOURCE: ALCASAR Team
162
DESC FR: sites autorisés ajoutés localement
163
NAME RU: ossi-wl
164
NAME EN: whitelisted sites add locally
165
NAME FR: ossi-wl
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NAME IT: ossi-wl
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NAME NL: ossi-wl
168
NAME DE: ossi-wl
169
NAME ES: ossi-wl
170
EOF
1930 richard 171
			# Retrieve custom files (ossi)
172
			for x in $(ls -1 $DIR_tmp | grep "^ossi-*")
173
			do
174
				mv $DIR_tmp/$x $DIR_DG_BL
175
			done
176
		fi
177
		rm -f $BL_CATEGORIES $WL_CATEGORIES
178
		rm -rf $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL $DIR_IP_WL
179
		touch $BL_CATEGORIES $WL_CATEGORIES
180
		mkdir $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL $DIR_IP_WL
181
		chown -R dansguardian:apache $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL $DIR_IP_WL
182
		chmod -R g+w $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL $DIR_IP_WL
183
		find $DIR_DG_BL/ -type f -name domains > $FILE_tmp # retrieve directory name where a domain file exist
184
		$SED "s?\/domains??g" $FILE_tmp # remove "/domains" suffix
1042 richard 185
		for dir_categorie in `cat $FILE_tmp` # create the blacklist and the whitelist files
878 richard 186
		do
1015 richard 187
			categorie=`echo $dir_categorie|cut -d "/" -f6`
188
			categorie_type=`grep -A1 ^NAME:[$' '$'\t']*$categorie $DIR_DG_BL/global_usage | grep ^DEFAULT_TYPE | cut -d":" -f2 | tr -d " \t"`
189
			if [ "$categorie_type" == "white" ]
878 richard 190
			then
1015 richard 191
				echo "$dir_categorie" >> $WL_CATEGORIES 
1930 richard 192
			else
193
				echo "$dir_categorie" >> $BL_CATEGORIES
878 richard 194
			fi
195
		done
196
		rm -f $FILE_tmp
1057 richard 197
		# Verify that the enabled categories are effectively in the BL (need after an update of the BL)
198
		for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` 
199
		do
200
			ok=`grep /$ENABLE_CATEGORIE$ $BL_CATEGORIES|wc -l`
201
			if [ $ok != "1" ] 
202
			then
203
				$SED "/^$ENABLE_CATEGORIE$/d" $BL_CATEGORIES_ENABLED
204
			fi
205
		done
1926 richard 206
		# Verify that the enabled categories are effectively in the WL (need after an update of the WL)
207
		for ENABLE_CATEGORIE in `cat $WL_CATEGORIES_ENABLED` 
208
		do
209
			ok=`grep /$ENABLE_CATEGORIE$ $WL_CATEGORIES|wc -l`
210
			if [ $ok != "1" ] 
211
			then
212
				$SED "/^$ENABLE_CATEGORIE$/d" $WL_CATEGORIES_ENABLED
213
			fi
214
		done
1293 richard 215
		# Creation of DNSMASQ and Iptables BL and WL
1015 richard 216
		for LIST in $BL_CATEGORIES $WL_CATEGORIES	# for each list (bl and wl)
854 richard 217
		do
1015 richard 218
			for PATH_FILE in `cat $LIST` # for each category
219
			do
220
				DOMAINE=`basename $PATH_FILE`
221
				echo -n "$DOMAINE, "
222
		  		if [ ! -f $PATH_FILE/urls ] # create 'urls' file if it doesn't exist
223
				then
224
					touch $PATH_FILE/urls
225
					chown dansguardian:apache $PATH_FILE/urls
226
				fi
227
				$SED "s/\.\{2,10\}/\./g" $PATH_FILE/domains $PATH_FILE/urls # correct some syntax errors
1383 richard 228
				# extract ip addresses for iptables
1867 raphael.pi 229
				awk '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/{print "add bl_ip_blocked " $0}' $PATH_FILE/domains > $FILE_ip_tmp
1015 richard 230
				# for dnsmask, remove IP addesses, accented characters and commented lines.
1293 richard 231
				egrep  -v "^([0-9]{1,3}\.){3}[0-9]{1,3}$" $PATH_FILE/domains > $FILE_tmp
1015 richard 232
				$SED "/[äâëêïîöôüû]/d" $FILE_tmp
233
				$SED "/^#.*/d" $FILE_tmp
234
				if [ "$LIST" == "$BL_CATEGORIES" ]
235
				then
1365 richard 236
					# adapt to the dnsmasq syntax for the blacklist
237
					$SED "s?.*?address=/&/$PRIVATE_IP?g" $FILE_tmp 
1015 richard 238
					mv $FILE_tmp $DIR_DNS_BL/$DOMAINE.conf
239
					mv $FILE_ip_tmp $DIR_IP_BL/$DOMAINE
240
				else
1365 richard 241
					# adapt to the dnsmasq syntax for the whitelist
242
					$SED "s?.*?server=/&/$DNS1?g" $FILE_tmp 
1015 richard 243
					mv $FILE_tmp $DIR_DNS_WL/$DOMAINE.conf
244
				fi
245
			done
854 richard 246
		done
1015 richard 247
		rm -f $FILE_tmp $FILE_ip_tmp
1339 richard 248
		rm -rf $DIR_tmp
654 richard 249
		;;
1898 richard 250
	# update the categories which are written in "/usr/local/etc/update_cat.conf" with rsync
251
	-update_cat | --update_cat)
1874 raphael.pi 252
		if [ $(cat /usr/local/etc/update_cat.conf | wc -l) -ne 0 ]
253
		then
1898 richard 254
			echo -n "Updating categories in /usr/local/etc/update_cat.conf ..."
255
			cat /usr/local/etc/update_cat.conf | while read LIGNE_RSYNC
256
			do
257
				CATEGORIE=$(echo $LIGNE_RSYNC | cut -d' ' -f1)
258
				URL=$(echo $LIGNE_RSYNC | cut -d' ' -f2)
259
				PATH_FILE=$(find $DIR_DG_BL/ -type d -name $CATEGORIE) # retrieve directory name of the category
260
				rsync -rv $URL $(dirname $PATH_FILE ) #rsync inside of the blacklist directory
261
				# Creation of DNSMASQ and Iptables BL and WL
262
				DOMAINE=$(basename $PATH_FILE)
263
				# correct some synthaxes
264
				$SED "s/\.\{2,10\}/\./g" $PATH_FILE/domains $PATH_FILE/urls
265
				# extract ip addresses for iptables
266
				awk '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/{print "add bl_ip_blocked " $0}' $PATH_FILE/domains > $FILE_ip_tmp
267
				# for dnsmask, remove IP addresses, accentuated characters and commented lines.
268
				egrep  -v "^([0-9]{1,3}\.){3}[0-9]{1,3}$" $PATH_FILE/domains > $FILE_tmp
269
				$SED "/[äâëêïîöôüû]/d" $FILE_tmp
270
				$SED "/^#.*/d" $FILE_tmp
271
				black=`grep black $PATH_FILE/usage |wc -l`
272
				if [ $black == "1" ]
273
				then
274
					# adapt to the dnsmasq syntax for the blacklist
275
					$SED "s?.*?address=/&/$PRIVATE_IP?g" $FILE_tmp 
276
					mv $FILE_tmp $DIR_DNS_BL/$DOMAINE.conf
277
					mv $FILE_ip_tmp $DIR_IP_BL/$DOMAINE
278
				else
279
					# adapt to the dnsmasq syntax for the whitelist
280
					$SED "s?.*?server=/&/$DNS1?g" $FILE_tmp 
281
					mv $FILE_tmp $DIR_DNS_WL/$DOMAINE.conf
282
				fi
283
				rm -f $FILE_tmp $FILE_ip_tmp
284
			done
285
			/usr/bin/systemctl restart dnsmasq-whitelist
286
			/usr/bin/systemctl restart dnsmasq-blacklist
287
			/usr/bin/systemctl restart dansguardian
288
			/usr/local/bin/alcasar-iptables.sh
1867 raphael.pi 289
		else
1898 richard 290
			  echo -n "/usr/local/etc/update_cat.conf is empty ..."
1867 raphael.pi 291
		fi
1874 raphael.pi 292
		echo 
1867 raphael.pi 293
		;;
1015 richard 294
	# reload when categories are changed 
386 franck 295
	-reload | --reload)
1015 richard 296
		# for DG
311 richard 297
		cat_choice
1042 richard 298
		#  for dnsmasq (rehabited domain names)
316 richard 299
		if [ `wc -w $DIR_DG/exceptionsitelist|cut -d " " -f1` != "0" ]
311 richard 300
		then
316 richard 301
			for i in `cat $DIR_DG/exceptionsitelist`
311 richard 302
			do
1015 richard 303
				$SED "/$i/d" $DIR_DNS_BL/*
311 richard 304
			done
305
		fi
1574 richard 306
		/usr/bin/systemctl restart dnsmasq-blacklist
307
		/usr/bin/systemctl restart dnsmasq-whitelist
1488 richard 308
		/usr/local/bin/alcasar-iptables.sh
503 richard 309
		;;
1 root 310
	*)
311
		echo "Argument inconnu :$1";
312
		echo "$usage"
313
		exit 1
314
		;;
315
esac
316
 
1857 raphael.pi 317
 
1867 raphael.pi 318
 
1874 raphael.pi 319