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##############################################
# CONFIGURATION
##############################################
# system paths
WGET="/usr/bin/wget"
UNRAR="/usr/bin/unrar"
PS="/bin/ps"
MV="/bin/mv"
RM="/bin/rm"
MD5="/usr/bin/md5sum"

# temporary path, must exist and be writeable
TMP="/tmp"

# clean-up old unused files :  0 - disable, 1 - enable-saves disk space
clean_unused="0"

# ESET updates server
SERVERURL="u33.eset.com"

# Local shared folder
BASE="/var/shares/antivirus/nod32"

# Username and password sent to you by e-mail from ESET
USER="EAV-01234567"
PASS="gej24i34j2"

# What languages should be IGNORED (not downloaded)
EXCLUDE_LANGUAGES=( fr ch nl ge jp pl pt sk sp hr hu )

##############################################
# DO NOT EDIT BELOW THIS LINE
##############################################

# Functions, pre-checks

SERVERv3="http://$SERVERURL/eset_upd/"

function err_disp {
if [ $? = 0 ];then
:
else
echo $1
exit 0
fi
}

function FilterLanguages {
list=$(cat "$TMP/update.ver"|grep ".nup")
for s in ${EXCLUDE_LANGUAGES[@]}; do
list=$(echo "$list"|grep -v "$s.nup")
done
list=${list//"file="/""}
echo "$list"
}

if [ -f $TMP/nod32list ];then
$RM -f $TMP/nod32list
err_disp 'Failed while deleting old file'
fi

if [ -f $TMP/v3.ver ];then
$RM -f $TMP/v3.ver
err_disp 'Failed while deleting old file'
fi

${PS} aux|grep wget|grep "$SERVERURL" >/dev/null 2>&1
if [ $? = 0 ];then
kill `ps aux|grep wget|grep "$SERVERURL"|awk '{print $2}'`
err_disp 'Failed while killing process'
fi

if [ ! -d ${BASE} ];then
mkdir -p ${BASE}
err_disp 'Failed while creating nod32 base home directiory'
fi

# Downloading the informational update files
$WGET -t 9 -T 9 -nH -q -nd -O $TMP/v3.ver $SERVERv3/update.ver
err_disp 'Failed while downloading update.ver v3'

$UNRAR x -inul $TMP/v3.ver $TMP
echo "`FilterLanguages`" >> $TMP/nod32list

$RM $TMP/update.ver

# Downloading the data files, adding/updating differences
$WGET --http-user=$USER --http-passwd=$PASS -N -t 9 -T 9 -m -nH -P $BASE --input-file=$TMP/nod32list -B "http://$SERVERURL" --quiet

if [ $? = 0 ]; then
$UNRAR p -inul $TMP/v3.ver | sed 's/\/download/download/' > $BASE/update.ver
fi

# Cleaning old NUP datafiles
if [ "$clean_unused" = "1" ]; then

if [ ! -f $TMP/nod32list ]; then
exit 0
fi

ARY=(`cat "$TMP/nod32list" | tr '\r' ' ' | tr '\n' ' '`)

if [ "${#ARY[@]}" -lt "10" ]; then
exit 0
fi

EFS=( )

filelist=`ls -1R "$BASE"`
de=${#BASE}
for s in $filelist; do
if [ "${s:(-1)}" = ":" ]; then
cdir=${s:($de)}
cdir=${cdir:0:(${#cdir}-1)}
else
ext=${s:(-4)}
if [ "$ext" = ".nup" ]; then
EFS=( "${EFS[@]}" "$cdir/$s" )
fi
fi
done

# echo "Existing files: ${#EFS[@]}\nUplink files: ${#ARY[@]}\nCleaning..."

if [ "${#EFS[@]}" -lt "10" ]; then
exit 0
fi

function FindInArray {
FOUND=0
for s in ${ARY[@]}; do
if [ "$s" = "$1" ]; then
FOUND=1
break
fi
done
echo "$FOUND"
}

for s in ${EFS[@]}; do
FOUND=`FindInArray $s`
if [ "$FOUND" = "0" ]; then
rm "$BASE$s"
fi
done

fi