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#/bin/bash
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#/bin/bash
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# $Id: alcasar-bl.sh 852 2012-04-09 13:26:51Z richard $
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# $Id: alcasar-bl.sh 854 2012-04-09 19:31:46Z richard $
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# alcasar-bl.sh
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# alcasar-bl.sh
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# by Franck BOUIJOUX and Richard REY
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# by Franck BOUIJOUX and Richard REY
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# This script is distributed under the Gnu General Public License (GPL)
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# This script is distributed under the Gnu General Public License (GPL)
7
 
7
 
8
# Gestion de la BL pour le filtrage de domaine (via dnsmasq) et d'URL (via Dansguardian)
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# Gestion de la BL pour le filtrage de domaine (via dnsmasq) et d'URL (via Dansguardian)
9
# Manage the BL for DnsBlackHole (dnsmasq) and URL filtering (Dansguardian)
9
# Manage the BL for DnsBlackHole (dnsmasq) and URL filtering (Dansguardian)
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10
 
11
CONF_FILE="/usr/local/etc/alcasar.conf"
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CONF_FILE="/usr/local/etc/alcasar.conf"
-
 
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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 $private_ip_mask | cut -d"/" -f1`			# ALCASAR LAN IP address
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DIR_tmp="/tmp/blacklists"
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DIR_tmp="/tmp/blacklists"
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FILE_tmp="/tmp/fileFilter.txt"
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FILE_tmp="/tmp/fileFilter.txt"
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DIR_DG="/etc/dansguardian/lists"
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DIR_DG="/etc/dansguardian/lists"
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DIR_DG_BL="$DIR_DG/blacklists"
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DIR_DG_BL="$DIR_DG/blacklists"
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BL_CATEGORIES="/usr/local/etc/alcasar-bl-categories"
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BL_CATEGORIES="/usr/local/etc/alcasar-bl-categories"
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BL_CATEGORIES_ENABLED="/usr/local/etc/alcasar-bl-categories-enabled"
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BL_CATEGORIES_ENABLED="/usr/local/etc/alcasar-bl-categories-enabled"
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DIR_DNS_FILTER_AVAILABLE="/usr/local/etc/alcasar-dnsfilter-available"
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DIR_DNS_FILTER_AVAILABLE="/usr/local/etc/alcasar-dnsfilter-available"
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DIR_DNS_FILTER_ENABLED="/usr/local/etc/alcasar-dnsfilter-enabled"
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DIR_DNS_FILTER_ENABLED="/usr/local/etc/alcasar-dnsfilter-enabled"
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IP_RETOUR="20.0.0.1"
-
 
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BL_SERVER="cri.univ-tlse1.fr"
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BL_SERVER="cri.univ-tlse1.fr"
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SED="/bin/sed -i"
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SED="/bin/sed -i"
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25
 
24
# Récupération de l'archive de la BL Toulouse
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# Récupération de l'archive de la BL Toulouse
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function transfert () {
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function transfert () {
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	mkdir -p $DIR_tmp
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	mkdir -p $DIR_tmp
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	cd $DIR_tmp
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	cd $DIR_tmp
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	wget http://$BL_SERVER/blacklists/download/blacklists.tar.gz
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	wget http://$BL_SERVER/blacklists/download/blacklists.tar.gz
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}
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}
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# Décompression de la BL (en conservant la WL)
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# Décompression de la BL (en conservant la WL)
31
function install () {
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function install () {
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	[ -d $DIR_DG ] || mkdir -p $DIR_DG
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	[ -d $DIR_DG ] || mkdir -p $DIR_DG
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	[ -d $DIR_DG_BL/ossi ] && mv -f $DIR_DG_BL/ossi $DIR_tmp
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	[ -d $DIR_DG_BL/ossi ] && mv -f $DIR_DG_BL/ossi $DIR_tmp
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	[ -d $DIR_DG_BL/ip ] && mv -f $DIR_DG_BL/ip $DIR_tmp
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	[ -d $DIR_DG_BL/ip ] && mv -f $DIR_DG_BL/ip $DIR_tmp
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	tar zxf $DIR_tmp/blacklists.tar.gz --directory=$DIR_DG/
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	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/
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	[ -d $DIR_tmp/ossi ] && mv -f $DIR_tmp/ossi $DIR_DG_BL/
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	[ -d $DIR_tmp/ip ] && mv -f $DIR_tmp/ip $DIR_DG_BL/
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	[ -d $DIR_tmp/ip ] && mv -f $DIR_tmp/ip $DIR_DG_BL/
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	cd /root
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	cd /root
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	rm -rf $DIR_tmp
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	rm -rf $DIR_tmp
40
}
42
}
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# Adaptation de la BL Toulouse à la structure Dnsmasq
-
 
42
function adapt () {
-
 
43
	# On récupère le nom des répertoire (catégories)
-
 
44
	find $DIR_DG_BL/ -type f -name domains > $BL_CATEGORIES
-
 
45
	# On supprime le suffice "/domains"
-
 
46
	$SED "s?\/domains??g" $BL_CATEGORIES
-
 
47
	rm -f $DIR_DNS_FILTER_AVAILABLE/*
-
 
48
	echo -n "Toulouse BlackList migration process. Please wait : "
-
 
49
	# pour chaque catégorie
-
 
50
	for PATH_FILE in `cat $BL_CATEGORIES`
-
 
51
	do
-
 
52
		echo -n "."
-
 
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		# on crée le fichier 'urls' s'il n'existe pas
-
 
54
		if [ ! -f $PATH_FILE/urls ]
-
 
55
		then
-
 
56
			touch $PATH_FILE/urls
-
 
57
			chown dansguardian:apache $PATH_FILE/urls
-
 
58
		fi
-
 
59
		# suppression des @IP, des lignes commentées et des caractères bizarres comme les ô et û ö ü
-
 
60
		egrep  -v "([0-9]{1,3}\.){3}[0-9]{1,3}" $PATH_FILE/domains > /tmp/dnsmasq-bl.tmp
-
 
61
		$SED "/[äâëêïîöôüû]/d" /tmp/dnsmasq-bl.tmp
-
 
62
		$SED "/^#.*/d" /tmp/dnsmasq-bl.tmp
-
 
63
		# Mise en forme dnsmasq
-
 
64
		$SED "s?.*?address=/&/$IP_RETOUR?g" /tmp/dnsmasq-bl.tmp
-
 
65
        	DOMAINE=`basename $PATH_FILE`
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66
		mv /tmp/dnsmasq-bl.tmp $DIR_DNS_FILTER_AVAILABLE/$DOMAINE.conf
-
 
67
	done
-
 
68
	echo
-
 
69
}
-
 
70
# Permet d'activer/désactiver les catégories de la BL
43
# Permet d'activer/désactiver les catégories de la BL
71
function cat_choice (){
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function cat_choice (){
72
	# un peu de ménage
45
	# un peu de ménage
73
	rm -rf $DIR_DNS_FILTER_ENABLED/*
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	rm -rf $DIR_DNS_FILTER_ENABLED/*
74
	$SED "/\.Include/d" $DIR_DG/bannedsitelist $DIR_DG/bannedurllist
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	$SED "/\.Include/d" $DIR_DG/bannedsitelist $DIR_DG/bannedurllist
75
	# on adapte le fichier $BL_CATEGORIES au choix de catégorie 
48
	# on adapte le fichier $BL_CATEGORIES au choix de catégorie 
76
	$SED "s?^[^#]?#&?g" $BL_CATEGORIES # on commente ce qui ne l'est pas
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	$SED "s?^[^#]?#&?g" $BL_CATEGORIES # on commente ce qui ne l'est pas
77
	for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` # on affecte les catégories à dansguardian et dnsmasq
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	for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` # on affecte les catégories à dansguardian et dnsmasq
78
	do
51
	do
79
		$SED "/\/$ENABLE_CATEGORIE$/d" $BL_CATEGORIES
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		$SED "/\/$ENABLE_CATEGORIE$/d" $BL_CATEGORIES
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		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $BL_CATEGORIES
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		$SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $BL_CATEGORIES
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		ln -s $DIR_DNS_FILTER_AVAILABLE/$ENABLE_CATEGORIE.conf $DIR_DNS_FILTER_ENABLED/$ENABLE_CATEGORIE
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		ln -s $DIR_DNS_FILTER_AVAILABLE/$ENABLE_CATEGORIE.conf $DIR_DNS_FILTER_ENABLED/$ENABLE_CATEGORIE
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		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/domains>" >> $DIR_DANSGUARDIAN/bannedsitelist  # dansguardian s'occupe du contournement par proxy http ;-)
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		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/domains>" >> $DIR_DG/bannedsitelist  # dansguardian s'occupe du contournement par proxy http ;-)
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		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/urls>" >> $DIR_DG/bannedurllist
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		echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/urls>" >> $DIR_DG/bannedurllist
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	done
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	done
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	sort -k2n $BL_CATEGORIES > $FILE_tmp
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	sort -k2n $BL_CATEGORIES > $FILE_tmp
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	mv $FILE_tmp $BL_CATEGORIES
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	mv $FILE_tmp $BL_CATEGORIES
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}
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}
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function bl_enable (){
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function bl_enable (){
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	$SED "s/^reportinglevel =.*/reportinglevel = 3/g" /etc/dansguardian/dansguardian.conf
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	$SED "s/^reportinglevel =.*/reportinglevel = 3/g" /etc/dansguardian/dansguardian.conf
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	$SED "s?^#\"?\"?g" $DIR_DG/urlregexplist # Enable 'safesearch'
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	$SED "s?^#\"?\"?g" $DIR_DG/urlregexplist # Enable 'safesearch'
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	if [ "$PARENT_SCRIPT" != "/usr/local/bin/alcasar-conf.sh" ] # don't launch on install stage
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	if [ "$PARENT_SCRIPT" != "/usr/local/bin/alcasar-conf.sh" ] # don't launch on install stage
92
	then
65
	then
93
		service dansguardian restart
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		service dansguardian restart
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		service dnsmasq restart
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		service dnsmasq restart
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		/usr/local/bin/alcasar-iptables.sh
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		/usr/local/bin/alcasar-iptables.sh
96
	fi
69
	fi
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}
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}
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function bl_disable (){
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function bl_disable (){
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	rm -rf $DIR_DNS_FILTER_ENABLED/*
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	rm -rf $DIR_DNS_FILTER_ENABLED/*
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	$SED "s/^reportinglevel =.*/reportinglevel = -1/g" /etc/dansguardian/dansguardian.conf
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	$SED "s/^reportinglevel =.*/reportinglevel = -1/g" /etc/dansguardian/dansguardian.conf
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	$SED "s?^[^#]?#&?g" $DIR_DG/urlregexplist # Disable 'safesearch'
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	$SED "s?^[^#]?#&?g" $DIR_DG/urlregexplist # Disable 'safesearch'
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	if [ "$PARENT_SCRIPT" != "/usr/local/bin/alcasar-conf.sh" ] # don't launch on install stage
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	if [ "$PARENT_SCRIPT" != "/usr/local/bin/alcasar-conf.sh" ] # don't launch on install stage
103
	then
76
	then
104
		service dansguardian restart
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		service dansguardian restart
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		service dnsmasq restart
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		service dnsmasq restart
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		/usr/local/bin/alcasar-iptables.sh
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		/usr/local/bin/alcasar-iptables.sh
107
	fi
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	fi
108
}
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}
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usage="Usage: alcasar-bl.sh {-on or --on} | { -off or --off } | { -download or --download } | { -reload or --reload }"
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usage="Usage: alcasar-bl.sh {-on or --on} | { -off or --off } | { -download or --download } | { -reload or --reload }"
110
nb_args=$#
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nb_args=$#
111
args=$1
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args=$1
112
if [ $nb_args -eq 0 ]
85
if [ $nb_args -eq 0 ]
113
then
86
then
114
	DNS_FILTERING=`grep DNS_FILTERING $CONF_FILE|cut -d"=" -f2`		# DNS and URLs filter (on/off)
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	DNS_FILTERING=`grep DNS_FILTERING $CONF_FILE|cut -d"=" -f2`		# DNS and URLs filter (on/off)
115
	DNS_FILTERING=${DNS_FILTERING:=off}
88
	DNS_FILTERING=${DNS_FILTERING:=off}
116
	echo "Set BlackList Filtering to $DNS_FILTERING"
89
	echo "Set BlackList Filtering to $DNS_FILTERING"
117
	if [ $DNS_FILTERING = on ]; then
90
	if [ $DNS_FILTERING = on ]; then
118
		cat_choice
91
		cat_choice
119
		bl_enable
92
		bl_enable
120
	else
93
	else
121
		bl_disable
94
		bl_disable
122
	fi
95
	fi
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	exit 0
96
	exit 0
124
fi
97
fi
125
case $args in
98
case $args in
126
	-\? | -h* | --h*)
99
	-\? | -h* | --h*)
127
		echo "$usage"
100
		echo "$usage"
128
		exit 0
101
		exit 0
129
		;;
102
		;;
130
	# activation du filtrage
103
	# activation du filtrage
131
	-on | --on)	
104
	-on | --on)	
132
		cat_choice
105
		cat_choice
133
		$SED "s?^DNS_FILTERING.*?DNS_FILTERING=on?g" $CONF_FILE
106
		$SED "s?^DNS_FILTERING.*?DNS_FILTERING=on?g" $CONF_FILE
134
		bl_enable
107
		bl_enable
135
		;;
108
		;;
136
	# désactivation du filtrage
109
	# désactivation du filtrage
137
	-off | --off)
110
	-off | --off)
138
		$SED "s?^DNS_FILTERING.*?DNS_FILTERING=off?g" $CONF_FILE
111
		$SED "s?^DNS_FILTERING.*?DNS_FILTERING=off?g" $CONF_FILE
139
		bl_disable
112
		bl_disable
140
		;;
113
		;;
141
	# Mise a jour de la blacklist 'Toulouse' et adaptation à dansguardian et dnsmasq
114
	# Mise a jour de la blacklist 'Toulouse' (attente validation md5 avant adaptation à notre structure)
142
	-download | --download)
115
	-download | --download)
143
		rm -rf /tmp/con_ok.html
116
		rm -rf /tmp/con_ok.html
144
		`/usr/bin/curl $BL_SERVER -# -o /tmp/con_ok.html`
117
		`/usr/bin/curl $BL_SERVER -# -o /tmp/con_ok.html`
145
		if [ ! -e /tmp/con_ok.html ]
118
		if [ ! -e /tmp/con_ok.html ]
146
		then
119
		then
147
			echo "Erreur : le serveur de blacklist ($BL_SERVER) n'est pas joignable"
120
			echo "Erreur : le serveur de blacklist ($BL_SERVER) n'est pas joignable"
148
		else 
121
		else 
149
			transfert
122
			transfert
150
			install
123
			install
151
			chown -R dansguardian:apache $DIR_DG
124
			chown -R dansguardian:apache $DIR_DG
152
			chmod -R g+w $DIR_DG
125
			chmod -R g+w $DIR_DG
153
			rm -rf /tmp/con_ok.html
126
			rm -rf /tmp/con_ok.html
154
		fi
127
		fi
155
		;;		
128
		;;		
156
	# Adaptation de la BL à notre structure 'dnsmasq + DG)
129
	# Adaptation de la BL à notre structure (dnsmasq + DG)
157
	-adapt | --adapt)
130
	-adapt | --adapt)
-
 
131
		find $DIR_DG_BL/ -type f -name domains > $BL_CATEGORIES  # On récupère le nom des répertoire (catégories)
-
 
132
		$SED "s?\/domains??g" $BL_CATEGORIES # On supprime le suffice "/domains"
-
 
133
		rm -f $DIR_DNS_FILTER_AVAILABLE/*
-
 
134
		echo -n "Toulouse BlackList migration process. Please wait : "
-
 
135
		for PATH_FILE in `cat $BL_CATEGORIES`  # pour chaque catégorie
-
 
136
		do
-
 
137
			echo -n "."
-
 
138
		  	if [ ! -f $PATH_FILE/urls ] # on crée le fichier 'urls' s'il n'existe pas
-
 
139
			then
-
 
140
				touch $PATH_FILE/urls
-
 
141
				chown dansguardian:apache $PATH_FILE/urls
-
 
142
			fi
-
 
143
			# suppression des @IP, de caractères acccentués et des lignes commentées
-
 
144
			egrep  -v "([0-9]{1,3}\.){3}[0-9]{1,3}" $PATH_FILE/domains > /tmp/dnsmasq-bl.tmp
-
 
145
			$SED "/[äâëêïîöôüû]/d" /tmp/dnsmasq-bl.tmp
-
 
146
			$SED "/^#.*/d" /tmp/dnsmasq-bl.tmp
-
 
147
			$SED "s?.*?address=/&/$PRIVATE_IP?g" /tmp/dnsmasq-bl.tmp  # Mise en forme dnsmasq
-
 
148
			DOMAINE=`basename $PATH_FILE`
-
 
149
			mv /tmp/dnsmasq-bl.tmp $DIR_DNS_FILTER_AVAILABLE/$DOMAINE.conf
158
		adapt
150
		done
159
		cat_choice
151
		echo
160
		;;
152
		;;
161
	# regénération suite à modification (choix catégories ou BL secondaire)
153
	# regénération suite à modification de la BL secondaire ou du choix des catégories 
162
	-reload | --reload)
154
	-reload | --reload)
163
		adapt
-
 
164
		# pour Dansguardian
155
		# pour Dansguardian
165
		chown -R dansguardian:apache $DIR_DG_BL/ossi
156
		chown -R dansguardian:apache $DIR_DG_BL/ossi
166
		chmod -R g+w $DIR_DG_BL/ossi
157
		chmod -R g+w $DIR_DG_BL/ossi
167
		cat_choice
158
		cat_choice
168
		# pour dnsmasq (noms de domaine réhabilités)
159
		# pour dnsmasq (noms de domaine réhabilités)
169
		if [ `wc -w $DIR_DG/exceptionsitelist|cut -d " " -f1` != "0" ]
160
		if [ `wc -w $DIR_DG/exceptionsitelist|cut -d " " -f1` != "0" ]
170
		then
161
		then
171
			for i in `cat $DIR_DG/exceptionsitelist`
162
			for i in `cat $DIR_DG/exceptionsitelist`
172
			do
163
			do
173
				$SED "/$i/d" $DIR_DNS_FILTER_AVAILABLE/*
164
				$SED "/$i/d" $DIR_DNS_FILTER_AVAILABLE/*
174
			done
165
			done
175
		fi
166
		fi
176
		cp -f $DIR_DG_BL/ossi/domains $DIR_DNS_FILTER_AVAILABLE/ossi.conf
167
		cp -f $DIR_DG_BL/ossi/domains $DIR_DNS_FILTER_AVAILABLE/ossi.conf
177
		$SED "s?.*?address=/&/$IP_RETOUR?g" $DIR_DNS_FILTER_AVAILABLE/ossi.conf
168
		$SED "s?.*?address=/&/$PRIVATE_IP?g" $DIR_DNS_FILTER_AVAILABLE/ossi.conf
178
		IP_PURE=`grep '^ip' $BL_CATEGORIES_ENABLED|wc -l`
169
		IP_PURE=`grep '^ip' $BL_CATEGORIES_ENABLED|wc -l`
179
		if [ $IP_PURE -eq "1" ]; then	# filtrage des url sans nom de domaine
170
		if [ $IP_PURE -eq "1" ]; then	# filtrage des url sans nom de domaine
180
			$SED "s/^\#\*ip$/*ip/g" $DIR_DG/bannedsitelist
171
			$SED "s/^\#\*ip$/*ip/g" $DIR_DG/bannedsitelist
181
		else
172
		else
182
			$SED "s/^\*ip$/#*ip/g" $DIR_DG/bannedsitelist
173
			$SED "s/^\*ip$/#*ip/g" $DIR_DG/bannedsitelist
183
		fi
174
		fi
184
		DNS_FILTERING=`grep DNS_FILTERING $CONF_FILE|cut -d"=" -f2`		# DNS and URLs filter (on/off)
175
		DNS_FILTERING=`grep DNS_FILTERING $CONF_FILE|cut -d"=" -f2`		# DNS and URLs filter (on/off)
185
		DNS_FILTERING=${DNS_FILTERING:=off}
176
		DNS_FILTERING=${DNS_FILTERING:=off}
186
		if [ $DNS_FILTERING = on ]; then
177
		if [ $DNS_FILTERING = on ]; then
187
			bl_enable
178
			bl_enable
188
		else
179
		else
189
			bl_disable
180
			bl_disable
190
		fi
181
		fi
191
		;;
182
		;;
192
	*)
183
	*)
193
		echo "Argument inconnu :$1";
184
		echo "Argument inconnu :$1";
194
		echo "$usage"
185
		echo "$usage"
195
		exit 1
186
		exit 1
196
		;;
187
		;;
197
esac
188
esac
198
 
189
 
199
 
190