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#!/bin/sh
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#
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# $Id: alcasar-condown.sh 2896 2020-12-10 23:29:21Z rexy $
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#
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# alcasar-condown.sh
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# by Rexy
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# This script is distributed under the Gnu General Public License (GPL)
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# This script is started by coova after each logout
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# Ce script est lancé par coova à chaque déconnexion d'usager
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PASSWD_FILE="/root/ALCASAR-passwords.txt"
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DB_USER=`cat $PASSWD_FILE|grep ^db_user=|cut -d'=' -f2`
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DB_PASSWORD=`cat $PASSWD_FILE|grep ^db_password=|cut -d'=' -f2`
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if [ -z $FRAMED_IP_ADDRESS ]; then
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	exit 1
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fi
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# Retrieve 2 alcasar special radius attributes (search order : default group, then user's group, then user)
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db_query="SELECT attribute, value FROM ( \
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 	( SELECT attribute, value FROM radreply WHERE username = '$USER_NAME' AND (attribute IN ('Alcasar-Filter', 'Alcasar-Protocols-Filter')) ) UNION \
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	( SELECT attribute, value FROM radgroupreply gr LEFT JOIN radusergroup ug ON gr.groupname = ug.groupname WHERE username = '$USER_NAME' AND (attribute IN ('Alcasar-Filter', 'Alcasar-Protocols-Filter')) ORDER BY ug.priority ) UNION \
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	( SELECT attribute, value FROM radgroupreply WHERE groupname = 'default' AND (attribute IN ('Alcasar-Filter', 'Alcasar-Protocols-Filter')) ) \
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) attrs GROUP BY attribute;"
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db_res=$(mysql -u$DB_USER -p$DB_PASSWORD -D radius -e "$db_query" -Ns)
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filter=$(echo "$db_res"      | awk '$1 == "Alcasar-Filter"           { print $2 }')
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filterProto=$(echo "$db_res" | awk '$1 == "Alcasar-Protocols-Filter" { print $2 }')
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if [ "$filter" == '4' ]; then	# AV_WL
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	set_filter="av_wl"
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elif [ "$filter" == '3' ]; then	# AV_BL
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	set_filter="av_bl"
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elif [ "$filter" == '2' ]; then	# AV
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	set_filter="av"
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else				# NOT_FILTERED
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	set_filter="not_filtered"
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fi
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if [ "$filterProto" == '4' ]; then	# PROFILE 3 (Custom)
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	set_filterProto="proto_3";
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elif [ "$filterProto" == '3' ]; then	# PROFILE 2 (WEB + Mail + Remote access)
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	set_filterProto="proto_2";
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elif [ "$filterProto" == '2' ]; then	# PROFILE 1 (WEB)
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	set_filterProto="proto_1";
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else					# PROFILE 0 (Not filtered)
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	set_filterProto="proto_0";
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fi
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# Remove user from his IPSET
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ipset del $set_filter      $FRAMED_IP_ADDRESS
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ipset del $set_filterProto $FRAMED_IP_ADDRESS
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# Remove IP address from active users list
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current_users_file="/tmp/current_users.txt"
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[ -e $current_users_file ] && sed -i "/^$FRAMED_IP_ADDRESS:/d" $current_users_file
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#############################
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## Debug : show all the coova parse variables (+ ALCASAR-Filter + ALCASAR-Protocols-Filter).
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## see "/src/chilli.c" for the complete list of parse variables
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#debug_file="/tmp/debug-condown.txt"
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#echo "-----------------------------------------------" >> $debug_file
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#echo `date` >> $debug_file
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#for i in DEV NET MASK ADDR USER_NAME NAS_IP_ADDRESS SERVICE_TYPE FRAMED_IP_ADDRESS FILTER_ID STATE CLASS CUI SESSION_TIMEOUT IDLE_TIMEOUT CALLING_STATION_ID CALLED_STATION_ID NAS_ID NAS_PORT_TYPE ACCT_SESSION_ID ACCT_INTERIM_INTERVAL WISPR_LOCATION_ID WISPR_LOCATION_NAME WISPR_BANDWIDTH_MAX_UP WISPR_BANDWIDTH_MAX_DOWN COOVACHILLI_MAX_INPUT_OCTETS COOVACHILLI_MAX_OUTPUT_OCTETS COOVACHILLI_MAX_TOTAL_OCTETS INPUT_OCTETS OUTPUT_OCTETS INPUT_PACKETS OUTPUT_PACKETS SESSION_TIME IDLE_TIME LOCATION OLD_LOCATION TERMINATE_CAUSE
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#do
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#	echo -n "$i=" >> $debug_file
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#	if [[ -v $i ]];
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#	then
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#		echo -n "${!i}; " >> $debug_file
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#	else
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#		echo -n "not defined; " >> $debug_file
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#	fi
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#done
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#echo >> $debug_file
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#echo "ALCASAR-Filter : $set_filter" >> $debug_file
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#echo "ALCASAR-Protocols-Filter : $set_filterProto" >> $debug_file
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## END Debug
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#################################