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#!/bin/bash
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# $Id: alcasar-bypass.sh 1508 2014-11-30 18:19:16Z richard $
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# alcasar-bypass.sh
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# by 3abtux and Rexy
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# This script is distributed under the Gnu General Public License (GPL)
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# activation / désactivation du contournement de l'authentification et du filtrage WEB
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# enable / disable the bypass of authenticate process and filtering
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usage="Usage: alcasar-bypass.sh {--on or -on } | {--off or -off}"
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SED="/bin/sed -i"
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CONF_FILE="/usr/local/etc/alcasar.conf"
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INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
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nb_args=$#
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args=$1
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if [ $nb_args -eq 0 ]
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then
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	nb_args=1
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	args="-h"
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fi
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case $args in
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	-\? | -h* | --h*)
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		echo "$usage"
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		exit 0
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		;;
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	--on | -on)
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		# activation du contournement
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		/usr/local/sbin/alcasar-logout.sh all
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		for i in chilli
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		do
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			if  (pgrep $i) > /dev/null ; then /usr/bin/systemctl stop $i.service ; fi
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		done
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		cp /etc/sysconfig/network-scripts/default-ifcfg-$INTIF /etc/sysconfig/network-scripts/ifcfg-$INTIF
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		ifup $INTIF
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		sh /usr/local/bin/alcasar-iptables-bypass.sh
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		$SED "s?^no-dhcp-interface.*?#&?g" /etc/dnsmasq.conf
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		/usr/bin/systemctl restart dnsmasq
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		echo "ALCASAR est en mode 'bypass'"
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		echo "ALCASAR is in 'bypass' mode"
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		;;
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	--off | -off)
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		# désactivation du contournement
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		$SED "s?^#no-dhcp-interface=$INTIF?no-dhcp-interface=$INTIF?g" /etc/dnsmasq.conf
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		$SED "s?^#no-dhcp-interface=tun0?no-dhcp-interface=tun0?g" /etc/dnsmasq.conf
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		$SED "s?^#no-dhcp-interface=lo?no-dhcp-interface=lo?g" /etc/dnsmasq.conf
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		systemctl restart dnsmasq
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		rm -f /etc/sysconfig/network-scripts/ifcfg-$INTIF
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		/usr/bin/systemctl start chilli
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		sh /usr/local/bin/alcasar-iptables.sh
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		echo "L'authentification et le filtrage sont actifs"
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		echo "Authentication and filtering system are enabled"
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;;
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	*)
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		echo "Argument inconnu :$1";
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		echo "$usage"
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		exit 1
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		;;
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esac