#!/bin/bash
#
# vpnstats	Get commaseparated file and mail it to the admin
# Version 1.0 beta by Richard de Vroede - Linvision BV <richard@linvision.com>
#

# check for conf file, else create with defaults
CONF=/etc/vpnstats.conf
if [ ! -f $CONF ]; then
    echo "LOGFILE=/var/log/messages.1" > $CONF
    echo "STATFILE=/var/log/vpnstats" >> $CONF
    echo "TEMPFILE=/tmp/tmpvpnstats" >> $CONF
    echo "SMTP=localhost" >> $CONF
    echo "FROM=" >> $CONF
    echo "TO=" >> $CONF
fi
. $CONF

# check for weekly crontab, else create it
CRON=/etc/cron.weekly/vpnstats.cron
if [ ! -f $CRON ]; then
    echo "#!/bin/bash" > $CRON
    echo "$0" >> $CRON
    chmod 755 $CRON
fi

echo "Name,Login,Logout,Connected Minutes,Recieved Bytes,Transmitted Bytes" > $STATFILE
PPPDPID=$(grep "peer authentication succeeded" $LOGFILE | cut -d [ -f2 | cut -d ] -f 1)
while [ "$PPPDPID" != "" ]; do
    PID=$(echo $PPPDPID | awk '{print $1}')
    grep $PID $LOGFILE | grep pppd | grep -v pptpd > $TEMPFILE
    NAME=$(grep "succeeded for" $TEMPFILE | awk -F "succeeded for" '{print $2}' | cut -d " " -f 2)
    LOGIN=$(grep "succeeded for" $TEMPFILE | cut -d " " -f 1-3)
    LOGOUT=$(grep "Connect time" $TEMPFILE | cut -d " " -f 1-3)
    CONNECT=$(grep "Connect time" $TEMPFILE | cut -d ] -f 2 | cut -d " " -f 4)
    RXB=$(grep "Sent" $TEMPFILE | cut -d ] -f 2 | cut -d " " -f 3)
    TXB=$(grep "Sent" $TEMPFILE | cut -d ] -f 2 | cut -d " " -f 6)
    echo "$NAME,$LOGIN,$LOGOUT,$CONNECT,$RXB,$TXB" >> $STATFILE
    PPPDPID=$(echo $PPPDPID | sed "s%$PID%%")
    rm -f $TEMPFILE
done

MAILER=$(echo $(locate sendEmail) | awk '{print$1}')
if [ "$MAILER" != "" ]; then
    if [ "$FROM" = "" ]; then FROM=root@`uname -n`; fi
    if [ "$TO" = "" ]; then TO=root@localhost; fi
    $MAILER -s $SMTP -u "VPNstats" -f $FROM -t $TO -m " " -a $STATFILE
else
    if [ -f "/bin/mail" ]; then
       cat $STATFILE | /bin/mail -s "VPNstats" $TO
    else
       echo "You need /bin/mail OR"
       echo "the Perl program sendEmail located at http://freshmeat.net/projects/sendemail/"
    fi
fi