Fortigate firewall connection

connect-to-fortigate.sh

#!/bin/bash
USER="user"
PASSWORD="password"

SEP="+++++"
TMP=`curl -s -D - ident.me | grep window.location`
echo "Header with magic: "$TMP

MAGIC=`echo $TMP | grep -o '[[:alnum:]]\{16\}' | tr -d '\r\n'`
HOST=`echo $TMP | cut -d / -f3 | cut -d : -f1 | tr -d '\r\n'`
PORT=`echo $TMP | cut -d / -f3 | cut -d : -f2 | tr -d '\r\n'`
echo "FortiGate: "$HOST" exposed on port: "$PORT "Sent Magic: "$MAGIC 

echo $SEP
echo "First request."
curl --verbose -s 'http://'$HOST':'$PORT'/fgtauth?'$MAGIC -H 'Host:'$HOST':'$PORT -H 'Connection: keep-alive'
sleep 1

echo $SEP
echo "Second request with affermative response to the License Agreement."
curl --verbose -s 'http://'$HOST':'$PORT'/' -H 'Host:'$HOST':'$PORT -H 'Referer: http://'$HOST':'$PORT'/fgtauth?'$MAGIC -H 'Connection: keep-alive' --data '4Tredir=http%3A%2F%2Fident.me%2F&magic='$MAGIC'&answer=1'
sleep 1

echo $SEP
echo "Last request with access credentials."
curl --verbose -s 'http://'$HOST':'$PORT'/' -H 'Host:'$HOST':'$PORT -H 'Referer: http://'$HOST':'$PORT'/' -H 'Connection: keep-alive' --data '4Tredir=http%3A%2F%2Fident.me%2F&magic='$MAGIC'&username='$USER'&password='$PASSWORD