#! /bin/sh -e

trap "stty echo; echo ''; echo 'Passfile not written'; exit 42" 1 2 3 15

askpass () {
    echo "Password:  "
    stty -echo
    read pass1
    echo "Retype password:  "
    read pass2
    stty echo
    if [ "${pass1}" = "${pass2}" ]; then
        echo "Got it.\n"
        return 0
    else
        echo "Authentication token manipulation error.\n"
        return 1
    fi 
}

base=${CTF_BASE:-/var/lib/ctf}
passfile=$base/pass

if [ -e $passfile ]; then
    echo "\nDanger! Danger!\n"
    echo "Wipes out current passfile. It's ok as long as note the current"
    echo "timestamp ($(date +%s)) and the new pass will be applied on the"
    echo "next scoreboard update.\n"
fi

echo "Enter passphrase for backups"
echo "To exit, press ctrl+c"
until askpass; do true; done

echo -e "${pass1}" > $passfile
echo "Passfile written"
stty echo