#!/bin/bash
username='kennedn'
password='NoPasswordForIgor'
cluster='GB+Great+Britain'
cookie='buffCookie.txt'
workingDir='/media/server/VPN/'
output="${workingDir}GB.ovpn"
logFile="${workingDir}curl.log"
csrf=
sessionID=

#cd into correct folder
cd ${workingDir}


#Just want the password
if [ "$1" = "-p" ] || [ "$1" = "--password" ]; then
        echo "Buffered Password: ${password}"
        exit 0
fi

CSRFCMD="curl -s -X GET -c ${cookie} -b ${cookie} https://buffered.com/login -H 'referer: https://buffered.com/login'"
AUTHCMD="curl -s -c ${cookie} -b ${cookie} https://buffered.com/login -H 'cookie: csrftoken=<<CSRF>>' -H 'referer: https://buffered.com/login' --data 'csrfmiddlewaretoken=<<CSRF>>&username=<<USER>>&password=<<PASS>>'"
DOWNCMD="curl -s 'https://buffered.com/getconfig' -H 'cookie: csrftoken=<<CSRF>>; sessionid=<<SESSION>>' -H 'referer: https://buffered.com/getconfig' --data 'csrfmiddlewaretoken=<<CSRF>>&clustername=<<CLUSTER>>'"

#cleanup from last run
if [ -f "$cookie" ]; then
        rm "$cookie"
fi
#Execute Get request
eval $CSRFCMD > /dev/null

#strip CSRF from cookie and set variables in AUTHCMD string
csrf="$(grep -oh csrftoken.*$ ${cookie} | sed 's/csrftoken\s//g')"
AUTHCMD=$(echo $AUTHCMD | sed -e "s/<<CSRF>>/${csrf}/g")
AUTHCMD=$(echo $AUTHCMD | sed -e "s/<<USER>>/${username}/g")
AUTHCMD=$(echo $AUTHCMD | sed -e "s/<<PASS>>/${password}/g")

#Execute Auth request
eval $AUTHCMD > /dev/null

#strip CSRF/SessionID from cookie and set variables in DOWNCMD string
sessionID="$(grep -oh sessionid.*$ ${cookie} | sed 's/sessionid\s//g')"
csrf="$(grep -oh csrftoken.*$ ${cookie} | sed 's/csrftoken\s//g')"
DOWNCMD=$(echo $DOWNCMD | sed -e "s/<<SESSION>>/${sessionID}/g")
DOWNCMD=$(echo $DOWNCMD | sed -e "s/<<CSRF>>/${csrf}/g")
DOWNCMD=$(echo $DOWNCMD | sed -e "s/<<CLUSTER>>/${cluster}/g")

#Execute Download request
eval $DOWNCMD > ${output}

#log result

echo "OVPN Grabber exited with return code ${?} on $(date '+%D at %T')" >> ${logFile}

#cleanup
if [ -f "$cookie" ]; then
        rm "$cookie"
fi

exit 0