Web authorization for Nodeny billing system

web-auth-nodeny.sh

#!/bin/sh
HOST="your host"
USERNAME="your login"
PASSWORD="your password"

URL="https://$HOST/cgi-bin/stat.pl"

ses()
{
    echo `wget --no-check-certificate -qO- $URL | grep -Eo -e '[0-9]{5,7}'`
}

hex_md5()
{
    echo -n "$1 $2" | md5sum - | awk '{print $1}'
}

SES=`ses`;
PP=`hex_md5 $SES $PASSWORD`

while true;
do
    auth_result=`wget --no-check-certificate -q -O- "$URL?uu=$USERNAME&a=98&pp=$PP"`;
    echo $auth_result | grep -q 'meta http-equiv="refresh"' 
    if [ 0 -ne $? ];
    then
        SES=`ses`;
        PP=`hex_md5 $SES $PASSWORD`
    fi;
    sleep 40;
done;