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| #/bin/bash |
| |
| # $Id$ |
| |
| # alcasar-bl.sh |
| # by Franck BOUIJOUX and Richard REY |
| # This script is distributed under the Gnu General Public License (GPL) |
| |
| # Gestion de la BL pour le filtrage de domaine (via dnsmasq) et d'URL (via Dansguardian) |
| # Manage the BL for DnsBlackHole (dnsmasq) and URL filtering (Dansguardian) |
| |
| DIR_CONF="/usr/local/etc" |
| CONF_FILE="$DIR_CONF/alcasar.conf" |
| private_ip_mask=`grep PRIVATE_IP= $CONF_FILE|cut -d"=" -f2` |
| private_ip_mask=${private_ip_mask:=192.168.182.1/24} |
| PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1` # ALCASAR LAN IP address |
| DIR_tmp="/tmp/blacklists" |
| FILE_tmp="/tmp/filesfilter.txt" |
| FILE_ip_tmp="/tmp/filesipfilter.txt" |
| DIR_DG="/etc/dansguardian/lists" |
| DIR_DG_BL="$DIR_DG/blacklists" |
| BL_CATEGORIES="$DIR_CONF/alcasar-bl-categories" # list of names of the BL categories |
| WL_CATEGORIES="$DIR_CONF/alcasar-wl-categories" #' ' WL ' |
| BL_CATEGORIES_ENABLED="$DIR_CONF/alcasar-bl-categories-enabled" # ' ' BL enabled categories |
| WL_CATEGORIES_ENABLED="$DIR_CONF/alcasar-wl-categories-enabled" # ' ' WL enabled categories |
| OSSI_DOMAINS_WL="$DIR_DG/blacklists/ossi/domains_wl" # Domain names for the ossi category |
| DIR_SHARE="/usr/local/share" |
| DIR_DNS_BL="$DIR_SHARE/dnsmasq-bl" # all the BL in the DNSMASQ format |
| DIR_DNS_WL="$DIR_SHARE/dnsmasq-wl" # all the WL ' ' ' |
| DIR_IP_BL="$DIR_SHARE/iptables-bl" # all the IP addresses of the BL |
| DIR_DNS_BL_ENABLED="$DIR_SHARE/dnsmasq-bl-enabled" # symbolic link to the domains BL (only enabled categories) |
| DIR_DNS_WL_ENABLED="$DIR_SHARE/dnsmasq-wl-enabled" # ' ' ' WL ' ' ' |
| DIR_IP_BL_ENABLED="$DIR_SHARE/iptables-bl-enabled" # ' ' ip BL (only enabled categories) |
| DNSMASQ_BL_CONF="/etc/dnsmasq-blacklist.conf" # conf file of dnsmasq-blacklist |
| DNS1=`grep "DNS1" $CONF_FILE | cut -d '=' -f 2` # server DNS1 (for WL domain names) |
| BL_SERVER="dsi.ut-capitole.fr" |
| SED="/bin/sed -i" |
| |
| # enable/disable the BL & WL categories |
| function cat_choice (){ |
| # saving ossi category |
| mkdir $DIR_tmp |
| cp $DIR_IP_BL/ossi $DIR_tmp |
| if [ -d $DIR_IP_BL_ENABLED ] |
| then |
| for file in `ls -1 $DIR_IP_BL_ENABLED | grep -v "^ossi-*"` |
| do |
| rm -f $DIR_IP_BL_ENABLED/$file |
| done |
| else |
| mkdir $DIR_IP_BL_ENABLED |
| chown apache $DIR_IP_BL_ENABLED |
| fi |
| if [ -d $DIR_DNS_BL_ENABLED ] |
| then |
| for file in `ls -1 $DIR_DNS_BL_ENABLED | grep -v "^ossi-*"` |
| do |
| rm -f $DIR_DNS_BL_ENABLED/$file |
| done |
| else |
| mkdir $DIR_DNS_BL_ENABLED |
| chown apache $DIR_DNS_BL_ENABLED |
| fi |
| rm -rf $DIR_DNS_WL_ENABLED # cleaning for dnsmasq and iptables |
| $SED "/\.Include/d" $DIR_DG/bannedsitelist $DIR_DG/bannedurllist # cleaning for DG |
| $SED "s?^[^#]?#&?g" $BL_CATEGORIES $WL_CATEGORIES # cleaning BL & WL categories file (comment all lines) |
| mkdir $DIR_DNS_WL_ENABLED |
| # process the file $BL_CATEGORIES with the choice of categories |
| for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` |
| do |
| $SED "/\/$ENABLE_CATEGORIE$/d" $BL_CATEGORIES |
| $SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $BL_CATEGORIES |
| ln -sf $DIR_DNS_BL/$ENABLE_CATEGORIE.conf $DIR_DNS_BL_ENABLED/$ENABLE_CATEGORIE |
| ln -sf $DIR_IP_BL/$ENABLE_CATEGORIE $DIR_IP_BL_ENABLED/$ENABLE_CATEGORIE |
| # echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/domains>" >> $DIR_DG/bannedsitelist # Blacklisted domains are managed by dnsmasq |
| echo ".Include<$DIR_DG_BL/$ENABLE_CATEGORIE/urls>" >> $DIR_DG/bannedurllist |
| done |
| sort +0.0 -0.2 $BL_CATEGORIES -o $FILE_tmp |
| mv $FILE_tmp $BL_CATEGORIES |
| # process the file $WL_CATEGORIES with the choice of categories |
| for ENABLE_CATEGORIE in `cat $WL_CATEGORIES_ENABLED` |
| do |
| $SED "/\/$ENABLE_CATEGORIE$/d" $WL_CATEGORIES |
| $SED "1i\/etc\/dansguardian\/lists\/blacklists\/$ENABLE_CATEGORIE" $WL_CATEGORIES |
| ln -sf $DIR_DNS_WL/$ENABLE_CATEGORIE.conf $DIR_DNS_WL_ENABLED/$ENABLE_CATEGORIE |
| done |
| sort +0.0 -0.2 $WL_CATEGORIES -o $FILE_tmp |
| mv $FILE_tmp $WL_CATEGORIES |
| # restoring ip files and ossi category |
| mv $DIR_tmp/ossi $DIR_IP_BL |
| chown apache $DIR_IP_BL/ossi |
| rm -rf $DIR_tmp |
| } |
| |
| usage="Usage: alcasar-bl.sh { -cat_choice or --cat_choice } | { -download or --download } | { -adapt or --adapt } | { -reload or --reload }" |
| nb_args=$# |
| args=$1 |
| if [ $nb_args -eq 0 ] |
| then |
| args="-h" |
| fi |
| case $args in |
| -\? | -h* | --h*) |
| echo "$usage" |
| exit 0 |
| ;; |
| # Retrieve Toulouse BL |
| -download | --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 |
| rm -rf /tmp/con_ok.html $DIR_tmp |
| mkdir $DIR_tmp |
| wget -P $DIR_tmp http://$BL_SERVER/blacklists/download/blacklists.tar.gz |
| md5sum $DIR_tmp/blacklists.tar.gz | cut -d" " -f1 > $DIR_tmp/md5sum |
| chown -R apache:apache $DIR_tmp |
| fi |
| ;; |
| # enable/disable categories (used only during the alcasar install process) |
| -cat_choice | --cat_choice) |
| cat_choice |
| ;; |
| # Adapt Toulouse BL to ALCASAR architecture (dnsmasq + DG + iptables) |
| -adapt | --adapt) |
| echo -n "Toulouse BlackList migration process. Please wait : " |
| if [ ! -e $DIR_SHARE/ossi-ip-wl ] |
| then |
| touch $DIR_SHARE/ossi-ip-wl |
| chown apache $DIR_SHARE/ossi-ip-wl |
| fi |
| if [ -f $DIR_tmp/blacklists.tar.gz ] # when downloading the last version of the BL |
| then |
| [ -d $DIR_DG_BL/ossi ] && mv $DIR_DG_BL/ossi $DIR_tmp |
| [ -e $DIR_IP_BL/ossi ] && mv $DIR_IP_BL/ossi $DIR_tmp/ossi-ip-bl |
| rm -rf $DIR_DG_BL $DIR_IP_BL |
| mkdir $DIR_DG_BL $DIR_IP_BL |
| tar zxf $DIR_tmp/blacklists.tar.gz --directory=$DIR_DG/ |
| [ -d $DIR_tmp/ossi ] && mv -f $DIR_tmp/ossi $DIR_DG_BL/ |
| fi |
| rm -f $BL_CATEGORIES $WL_CATEGORIES $WL_CATEGORIES_ENABLED |
| rm -rf $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL |
| touch $BL_CATEGORIES $WL_CATEGORIES $WL_CATEGORIES_ENABLED |
| mkdir $DIR_DNS_BL $DIR_DNS_WL $DIR_IP_BL |
| chown -R dansguardian:apache $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED |
| chmod -R g+w $DIR_DG $BL_CATEGORIES $WL_CATEGORIES $BL_CATEGORIES_ENABLED $WL_CATEGORIES_ENABLED |
| find $DIR_DG_BL/ -type f -name domains > $FILE_tmp # retrieve directory name where a domain file exist |
| $SED "s?\/domains??g" $FILE_tmp # remove "/domains" suffix |
| for dir_categorie in `cat $FILE_tmp` # create the blacklist and the whitelist files |
| do |
| categorie=`echo $dir_categorie|cut -d "/" -f6` |
| categorie_type=`grep -A1 ^NAME:[$' '$'\t']*$categorie $DIR_DG_BL/global_usage | grep ^DEFAULT_TYPE | cut -d":" -f2 | tr -d " \t"` |
| if [ "$categorie_type" == "white" ] |
| then |
| echo "$dir_categorie" >> $WL_CATEGORIES |
| echo `basename $dir_categorie` >> $WL_CATEGORIES_ENABLED # by default all WL are enabled |
| fi |
| echo "$dir_categorie" >> $BL_CATEGORIES # By default all categories are in BL |
| done |
| rm -f $FILE_tmp |
| # Verify that the enabled categories are effectively in the BL (need after an update of the BL) |
| for ENABLE_CATEGORIE in `cat $BL_CATEGORIES_ENABLED` |
| do |
| ok=`grep /$ENABLE_CATEGORIE$ $BL_CATEGORIES|wc -l` |
| if [ $ok != "1" ] |
| then |
| $SED "/^$ENABLE_CATEGORIE$/d" $BL_CATEGORIES_ENABLED |
| fi |
| done |
| # Creation of DNSMASQ and Iptables BL and WL |
| for LIST in $BL_CATEGORIES $WL_CATEGORIES # for each list (bl and wl) |
| do |
| for PATH_FILE in `cat $LIST` # for each category |
| do |
| DOMAINE=`basename $PATH_FILE` |
| echo -n "$DOMAINE, " |
| if [ ! -f $PATH_FILE/urls ] # create 'urls' file if it doesn't exist |
| then |
| touch $PATH_FILE/urls |
| chown dansguardian:apache $PATH_FILE/urls |
| fi |
| $SED "s/\.\{2,10\}/\./g" $PATH_FILE/domains $PATH_FILE/urls # correct some syntax errors |
| # extract ip addresses for iptables |
| awk '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/{print "add blacklist_ip_blocked " $0}' $PATH_FILE/domains > $FILE_ip_tmp |
| # for dnsmask, remove IP addesses, accented characters and commented lines. |
| egrep -v "^([0-9]{1,3}\.){3}[0-9]{1,3}$" $PATH_FILE/domains > $FILE_tmp |
| $SED "/[äâëêïîöôüû]/d" $FILE_tmp |
| $SED "/^#.*/d" $FILE_tmp |
| if [ "$LIST" == "$BL_CATEGORIES" ] |
| then |
| # adapt to the dnsmasq syntax for the blacklist |
| $SED "s?.*?address=/&/$PRIVATE_IP?g" $FILE_tmp |
| mv $FILE_tmp $DIR_DNS_BL/$DOMAINE.conf |
| mv $FILE_ip_tmp $DIR_IP_BL/$DOMAINE |
| else |
| # adapt to the dnsmasq syntax for the whitelist |
| $SED "s?.*?server=/&/$DNS1?g" $FILE_tmp |
| mv $FILE_tmp $DIR_DNS_WL/$DOMAINE.conf |
| fi |
| done |
| done |
| rm -f $FILE_tmp $FILE_ip_tmp |
| # Restoring ossi file of BL IP |
| [ -e $DIR_tmp/ossi-ip-bl ] && mv $DIR_tmp/ossi-ip-bl $DIR_IP_BL/ossi |
| rm -rf $DIR_tmp |
| echo |
| ;; |
| # reload when categories are changed |
| -reload | --reload) |
| # for DG |
| chown -R dansguardian:apache $DIR_DG_BL/ossi |
| chmod -R g+w $DIR_DG_BL/ossi |
| cat_choice |
| # for dnsmasq (rehabited domain names) |
| if [ `wc -w $DIR_DG/exceptionsitelist|cut -d " " -f1` != "0" ] |
| then |
| for i in `cat $DIR_DG/exceptionsitelist` |
| do |
| $SED "/$i/d" $DIR_DNS_BL/* |
| done |
| fi |
| cp -f $DIR_DG_BL/ossi/domains $DIR_DNS_BL/ossi.conf |
| $SED "s?.*?address=/&/$PRIVATE_IP?g" $DIR_DNS_BL/ossi.conf |
| cp -f $OSSI_DOMAINS_WL $DIR_DNS_WL/ossi.conf |
| $SED "s?.*?server=/&/$DNS1?g" $DIR_DNS_WL/ossi.conf |
| ln -s $DIR_DNS_WL/ossi.conf $DIR_DNS_WL_ENABLED/ossi |
| |
| /usr/bin/systemctl restart dnsmasq-blacklist |
| /usr/bin/systemctl restart dnsmasq-whitelist |
| /usr/local/bin/alcasar-iptables.sh |
| ;; |
| *) |
| echo "Argument inconnu :$1"; |
| echo "$usage" |
| exit 1 |
| ;; |
| esac |
| |
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