oathtool wrapper

home_bin_totp

#!/usr/bin/env sh

BASEDIR="${HOME}"
SECRET_FILE="${BASEDIR}/.totp_secret"

if test ! -e "${SECRET_FILE}"
then
    touch -a "${SECRET_FILE}"
fi


if test ! -w "${SECRET_FILE}"
then
    echo "Storage is unwritable, stopping execution."
    exit 1
fi



TOTP_SHARED_SECRET=$( cat "${SECRET_FILE}" )

if test "q${TOTP_SHARED_SECRET}" = "q"
then
    echo "Generate time based password for what secret?"
else
    echo "* Leave blank to generate password for current secret, i.e.: '${TOTP_SHARED_SECRET}'."
    echo "* Type d followed by Enter to remove the current secret."
fi



read -r NEW_TOTP_SECRET



if test "q${NEW_TOTP_SECRET}" = "qd"
then
    rm "${SECRET_FILE}"
    echo "removed secret."
    exit 0
fi



if test "q${NEW_TOTP_SECRET}" != "q"
then
    TOTP_SHARED_SECRET=${NEW_TOTP_SECRET}
fi



if test "q${TOTP_SHARED_SECRET}" = "q"
then
    echo "Funny, the secret has not been set .. aborting."
    exit 1
fi



echo "Generating time based password for the provided secret."

oathtool --totp --base32 "${TOTP_SHARED_SECRET}"




echo "Storing the provided secret."

echo "${TOTP_SHARED_SECRET}" > "${SECRET_FILE}"