Subversion Repositories ALCASAR

#/bin/sh
# $Id: alcasar-bl.sh 308 2010-10-25 22:17:29Z richard $

# Script de gestion de la BL pour le filtrage de domaine (via dnsmasq) et d'URL (via dansguardian)
# By 3abtux & rexy

DIR_tmp="/tmp/blacklists"
FILE_tmp="/tmp/fileFilter.txt"
BL_CATEGORIES=/usr/local/etc/alcasar-bl-categories
DIR_DANSGUARDIAN="/etc/dansguardian/lists/"
DIR_DNS_FILTER_AVAILABLE="/usr/local/etc/alcasar-dnsfilter-available"
DIR_DNS_FILTER_ENABLE="/usr/local/etc/alcasar-dnsfilter-enabled"
IP_RETOUR="127.0.0.1"
BL_SERVER="cri.univ-tlse1.fr"
SED="/bin/sed -i"
# Récupération de l'archive de la BL Toulouse
function transfert () {
        mkdir -p $DIR_tmp
        cd $DIR_tmp
        wget http://$BL_SERVER/blacklists/download/blacklists.tar.gz
}

# Décompression de la BL (en conservant la WL)
function install () {
        [ -d $DIR_DANSGUARDIAN ] || mkdir -p $DIR_DANSGUARDIAN
        [ -d $DIR_DANSGUARDIAN/blacklists/ossi ] && mv -f $DIR_DANSGUARDIAN/blacklists/ossi $DIR_tmp
        tar zxf $DIR_tmp/blacklists.tar.gz --directory=$DIR_DANSGUARDIAN
        [ -d $DIR_tmp/ossi ] && mv -f $DIR_tmp/ossi $DIR_DANSGUARDIAN/blacklists/
        cd /root
        rm -rf $DIR_tmp
}

# Adaptation de la BL Toulouse à la structure Dnsmasq
function adapt () {
# On récupère le nom des répertoire (catégories)
find $DIR_DANSGUARDIAN -type f -name domains > $FILE_tmp
# On supprime le suffice "/domains"
$SED "s?\/domains??g" $FILE_tmp
rm -f $DIR_DNS_FILTER_AVAILABLE/*
echo -n "Adaptation de la BL Toulouse. Veuillez patienter : "
# On copie les fichiers de domaine pour chaque catégorie
for PATH_FILE in `cat $FILE_tmp`
do
        DOMAINE=`basename $PATH_FILE`
        echo -n "."
        # suppression des @IP, des lignes commentées et des caractères bizarres comme les ô et û ö ü
        # cela supprime quelques domaines ... qui restent filtrés par dansguardian
        egrep  -v "([0-9]{1,3}\.){3}[0-9]{1,3}" $PATH_FILE/domains > /tmp/dnsmasq-bl.tmp
        $SED "/[äâëêïîöôüû]/d" /tmp/dnsmasq-bl.tmp
        $SED "/^#.*/d" /tmp/dnsmasq-bl.tmp
        # Mise en forme dnsmasq
        $SED "s?.*?address=/&/$IP_RETOUR?g" /tmp/dnsmasq-bl.tmp
        mv /tmp/dnsmasq-bl.tmp $DIR_DNS_FILTER_AVAILABLE/$DOMAINE.conf
done
rm -f $FILE_tmp
echo
}

# Permet d'activer/désactiver les catégories de la BL
function cat_choice (){
rm -rf $DIR_DNS_FILTER_ENABLE
for i in `cat $BL_CATEGORIES`
        do
        echo $i
        done
}
usage="Usage: alcasar-bl.sh -on | -off | -download| -reload"
nb_args=$#
args=$1
if [ $nb_args -eq 0 ]
then
        nb_args=1
        args="-h"
fi
case $args in
        -\? | -h* | --h*)
                echo "$usage"
                exit 0
                ;;
        # activation du filtrage
        -on)    
                $SED "s/^reportinglevel =.*/reportinglevel = 3/g" /etc/dansguardian/dansguardian.conf
                cat_choice
                service dansguardian reload
                service dnsmasq restart
                ;;
        # désactivation du filtrage
        -off)
                $SED "s/^reportinglevel =.*/reportinglevel = -1/g" /etc/dansguardian/dansguardian.conf
                rm -rf $DIR_DNS_FILTER_ENABLE
                service dansguardian reload
                service dnsmasq restart
                ;;
        # Mise a jour de la blacklist 'Toulouse' et adaptation à dansguardian et dnsmasq
        -download)
                rm -rf /tmp/con_ok.html
                `/usr/bin/curl $BL_SERVER -# -o /tmp/con_ok.html`
                if [ ! -e /tmp/con_ok.html ]
                then
                        echo "Erreur : le serveur de blacklist ($BL_SERVER) n'est pas joignable"
                else 
                        transfert
                        install
                        chown -R dansguardian:apache $DIR_DANSGUARDIAN
                        chmod -R g+w $DIR_DANSGUARDIAN
                        DATE=`date '+%d %B %Y - %Hh%M'`
                        echo "Univ-tlse du $DATE " > /var/www/html/VERSION-BL
                        rm -rf /tmp/con_ok.html
                fi
                adapt
                ;;              
        # regénération suite à modification de la BL OSSI/RSSI
        -reload)
                # pour Dansguardian
                chown -R dansguardian:apache $DIR_DANSGUARDIAN/blacklists/ossi
                chmod -R g+w $DIR_DANSGUARDIAN/blacklists/ossi
                service dansguardian reload
                # pour dnsmasq
                cp $DIR_DANSGUARDIAN/blacklists/ossi/domains $DIR_DNS_FILTER_AVAILABLE/ossi.conf
                $SED "s?.*?address=/&/$IP_RETOUR?g" $DIR_DNS_FILTER_AVAILABLE/ossi.conf
                service dnsmasq reload
;;
        *)
                echo "Argument inconnu :$1";
                echo "$usage"
                exit 1
                ;;
esac