Tiny TOTP token management script using gnupg and oathtool, storing encrypted tokens

otp

#!/usr/bin/env bash

die(){
    echo "${@}"
    exit 1
}

list-targets(){
    find "${OTPDIR}" -type f -name '*.gpg' -printf '%P\n' | sed 's/.gpg$//g'
    exit
}

parse_params(){
    OTPDIR="${HOME}/.config/oath"
    while (($#)); do
        case ${1:-} in
            -l) list-targets ;;
            -?*) die "Unknown option: ${1}" ;;
            --) args+=("$@") ;;
            *) args+=("${1:-}") ;;
        esac
        shift
    done

    (("${#args[@]}")) || list-targets
    (("${#args[@]}" == 1)) || die "Too many arguments!"

    TARGET="${OTPDIR}/${args[0]}.gpg"
}

parse_params "$@"

[ -f "$TARGET" ] || die "Target not found: ${TARGET}"

gpg -dq "$TARGET" | sed 's#^.\+[&?]secret=\([A-Z0-9]*\)\(&.\+\)\?$#\1#' | oathtool --base32 --totp -