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#!/bin/bash
#
# $Id: alcasar-generate_log.sh 2532 2018-04-30 03:55:35Z tom.houdayer $
#
#Corrélation et Generation des logs d'imputabilité au format PDF.
#Ce script permet de générer un fichier HTML qui sera converti en PDF a l'aide du RPM wkhtmltopdf.
#Ce PDF sera placé dans une archive protégé par un mot de passe.
#Pour extraire ce fichier PDF, il faudra installer le paquet p7zip.
#La génération de ce document préviendra les utilisateurs lors de leur prochaine connection. (utilisateur flagué dans le 4ème 'bit' de l'attribut FilterID de la BDD radius.
#
#Il est possible de demander les logs d'imputabilité :
#-depuis le début (pas d'argument)
#-à partir d'une date (un seul argument)
#-en spécifiant un intervale (deux arguments correspondant aux bornes respectives)
#Par Raphaël Pion



usage="Usage: alcasar-generate_log.sh PASSWORD && ({ '' } | { 'YYYY-MM-DD HH:MM:SS' } | { 'YYYY-MM-DD HH:MM:SS' 'YYYY-MM-DD HH:MM:SS' })"
nb_args=$#
DIR='/var/www/html/acc/backup/'
TMP_SQL="/tmp/log_sql.csv"
TMP_USERS="/tmp/log_users"
TMP_HTML="$DIR/log_nf.html"
TMP_PDF="$DIR/imputabilities_logs-$(date +%F).pdf"
PASSWD_FILE="/root/ALCASAR-passwords.txt"
DB_ROOT_PW=$(grep '^db_root=' $PASSWD_FILE | cut -d'=' -f 2-)
ARCHIVE_LOCATION="$DIR/imputabilities_logs.zip"


if [ $nb_args -eq 1 ]
then
        QUERY="SELECT username,callingstationid,framedipaddress,acctstarttime,acctstoptime,acctinputoctets,acctoutputoctets,acctterminatecause FROM radacct ORDER BY acctstarttime INTO OUTFILE '$TMP_SQL' FIELDS TERMINATED BY ',' ENCLOSED BY '' LINES TERMINATED BY '\n';"
        SECTION_LOG="Extraction de tous les journaux"
fi

if [ $nb_args -eq 2 ]
then
        QUERY="SELECT username,callingstationid,framedipaddress,acctstarttime,acctstoptime,acctinputoctets,acctoutputoctets,acctterminatecause FROM radacct WHERE acctstarttime >= '$2' ORDER BY acctstarttime INTO OUTFILE '$TMP_SQL' FIELDS TERMINATED BY ',' ENCLOSED BY '' LINES TERMINATED BY '\n';"
        SECTION_LOG="Extraction des journaux à partir du $2"
fi

if [ $nb_args -eq 3 ]
then
        QUERY="SELECT username,callingstationid,framedipaddress,acctstarttime,acctstoptime,acctinputoctets,acctoutputoctets,acctterminatecause FROM radacct WHERE acctstarttime >= '$2' AND acctstarttime <= '$3' ORDER BY acctstoptime INTO OUTFILE '$TMP_SQL' FIELDS TERMINATED BY ',' ENCLOSED BY '' LINES TERMINATED BY '\n';"
        SECTION_LOG="Extraction des journaux entre $2 et $3"
fi

if [ $nb_args -eq 0 ]
then
        echo $usage
        exit
fi


if [ $nb_args -gt 3 ]
then
        echo $usage
        exit
fi

if [ -e $TMP_SQL ]
then
        rm $TMP_SQL
fi

if [ -e $TMP_PDF ]
then
        rm $TMP_PDF
fi

if [ -e $ARCHIVE_LOCATION ]
then
        rm $ARCHIVE_LOCATION
fi


#get log information for each users
mysql -u root -p"$DB_ROOT_PW" -D radius -e "$QUERY"

#Create HTML document which contains every informations about users
echo "<!DOCTYPE html>" > $TMP_HTML
echo "<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>" >> $TMP_HTML
echo "<TITLE>ALCASAR Report</TITLE>" >> $TMP_HTML
echo "<link rel='stylesheet' type='text/css' href='../../css/bootstrap.min.css'>" >> $TMP_HTML
echo "<link rel='stylesheet' type='text/css' href='../../css/report.css'>" >> $TMP_HTML
echo "</HEAD>" >> $TMP_HTML
echo "<body>" >> $TMP_HTML
echo "<h1>$SECTION_LOG</h1>" >> $TMP_HTML

echo "<i><p style='text-align: right;'>Date de création $(date +%F)</p></i>" >> $TMP_HTML
echo "<font size='1'>" >> $TMP_HTML
cat $TMP_SQL | while read LIGNE_SQL
do
        LOG_IP=$(echo $LIGNE_SQL | cut -d',' -f3)
        LOG_DATE1=$(echo $LIGNE_SQL | cut -d',' -f4)
        LOG_DATE2=$(echo $LIGNE_SQL | cut -d',' -f5)

        LOG_Y1=$(echo $LOG_DATE1 | cut -d'-' -f1)
        LOG_M1=$(echo $LOG_DATE1 | cut -d'-' -f2)
        LOG_D1=$(echo $LOG_DATE1 | cut -d'-' -f3 | cut -d' ' -f1)
        LOG_H1=$(echo $LOG_DATE1 | cut -d'-' -f3 | cut -d' ' -f2)
       
        LOG_Y2=$(echo $LOG_DATE2 | cut -d'-' -f1)
        LOG_M2=$(echo $LOG_DATE2 | cut -d'-' -f2)
        LOG_D2=$(echo $LOG_DATE2 | cut -d'-' -f3 | cut -d' ' -f1)
        LOG_H2=$(echo $LOG_DATE2 | cut -d'-' -f3 | cut -d' ' -f2)
       
        DUMP=$(nfdump -O tstart -R /var/log/nfsen/profiles-data/live/alcasar_netflow/ -t $LOG_Y1/$LOG_M1/$LOG_D1.$LOG_H1-$LOG_Y2/$LOG_M2/$LOG_D2.$LOG_H2 -o "fmt:<tr><td class='numberLine'></td><td>%sa</td><td>%sp</td><td>%da</td><td>%dp</td><td>%ts</td></tr>" | tail -n +2 | head -n -4 | grep "$LOG_IP")
        if [ ! -z "$DUMP" ]
        then
                echo "<div class='container'> " >> $TMP_HTML
                echo "<table class='table table-striped'>" >> $TMP_HTML
                echo "<thead>" >> $TMP_HTML
                echo "<tr>" >> $TMP_HTML
                echo "<th>Username</th>" >> $TMP_HTML
                echo "<th>Client @MAC</th>" >> $TMP_HTML
                echo "<th>Client @IP</th>" >> $TMP_HTML
                echo "<th>Login Time</th>" >> $TMP_HTML
                echo "<th>Logout Time</th>" >> $TMP_HTML
                echo "<th>Upload</th>" >> $TMP_HTML
                echo "<th>Download</th>" >> $TMP_HTML
                echo "<th>Cause</th>" >> $TMP_HTML
                echo "</tr></thead><tbody><tr>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f1) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f2) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f3) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f4) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f5) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f7) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f6) "</td>" >> $TMP_HTML
                echo "<td>" $(echo $LIGNE_SQL | cut -d',' -f8) "</td>" >> $TMP_HTML
                echo "</tr></tbody></table></div>" >> $TMP_HTML
                echo "<div class='container mySpace'> " >> $TMP_HTML
                echo "<table class='table table-striped'>" >> $TMP_HTML
                echo "<thead>" >> $TMP_HTML
                echo "<tr>" >> $TMP_HTML
                echo "<th>N°</th>" >> $TMP_HTML
                echo "<th>@IP src</th>" >> $TMP_HTML
                echo "<th>Port src</th>" >> $TMP_HTML
                echo "<th>@IP dst</th>" >> $TMP_HTML
                echo "<th>Port dst</th>" >> $TMP_HTML
                echo "<th>Date</th>" >> $TMP_HTML
                echo "</tr></thead><tbody>" >> $TMP_HTML
                echo $DUMP >> $TMP_HTML
                echo "</tbody></table></div>" >> $TMP_HTML
        fi
done
echo "</font>" >> $TMP_HTML
echo "</body>" >> $TMP_HTML
echo "</HTML>" >> $TMP_HTML

# inform users about that by setting the Alcasar-Imputability-Warning attribute
QUERY="INSERT INTO radreply (username, attribute, value, op) SELECT ui.username, 'Alcasar-Imputability-Warning', '1' , '=' FROM userinfo ui LEFT JOIN radreply rr ON rr.username = ui.username AND rr.attribute = 'Alcasar-Imputability-Warning' WHERE rr.username IS NULL;"
mysql -u root -p"$DB_ROOT_PW" -D radius -e "$QUERY"

/usr/bin/wkhtmltopdf $TMP_HTML $TMP_PDF


/usr/bin/7za a -tzip -p"$1" -mem=AES256 $ARCHIVE_LOCATION $TMP_PDF
chown apache:apache $ARCHIVE_LOCATION


rm $TMP_HTML
rm $TMP_SQL
rm $TMP_PDF