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dotfiles/.local/bin/otp

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#!/bin/sh
# Get a one-time password, or add a OTP secret to your pass-otp store.
# The assumption of this script is that all otp passwords are stored with the
# suffix `-otp`. This script automatically appends newly added otps as such.
# For OTP passwords to be generated properly, it is important for the local
# computer to have its time properly synced. This can be done with the command
# below which requires the package `ntp`.
ifinstalled pass pass-otp
dir="${PASSWORD_STORE_DIR}"
choice="$({ echo "🆕add" ; echo "🕙sync-time" ; ls ${dir}/*-otp.gpg ;} | sed "s/.*\///;s/-otp.gpg//" | dmenu -p "Pick a 2FA:")"
case $choice in
🆕add )
ifinstalled maim zbar xclip || exit 1
temp="$dir/temp.png"
otp="otp-test-script"
trap 'shred -fu $temp; pass rm $otp' HUP INT QUIT TERM PWR EXIT
notify-send "Scan the image." "Scan the OTP QR code."
maim -s "$temp" || exit 1
info="$(zbarimg -q "$temp")"
info="${info#QR-Code:}"
issuer="$(echo "$info" | grep -o "issuer=[A-z0-9]\+")"
name="${issuer#issuer=}"
if echo "$info" | pass otp insert "$otp"; then
while true ; do
export name="$(prinf | dmenu -p "Give this One Time Password a one-word name:")"
echo "$name" | grep -q -- "^[A-z0-9-]\+$" && break
done
pass mv "$otp" "$name-otp"
notify-send "Successfully added." "$name-otp has been created."
else
notify-send "No OTP data found." "Try to scan the image again more precisely."
fi
;;
🕙sync-time )
ifinstalled ntp || exit 1
notify-send -u low "🕙 Synchronizing Time..." "Synching time with remote NTP servers..."
updatedata="$(sudo ntpdate pool.ntp.org)" &&
notify-send -u low "🕙 Synchronizing Time..." "Done. Time changed by ${updatedata#*offset }"
;;
*) pass otp -c ${choice}-otp ;;
esac