#!/bin/bash

set -Cef

help() {

    echo "Encrypt a given string and print out the output. This output can be"

    echo "then used as encrypted pillar"

    echo

    echo "Options:"

    echo "-m        Pass multiline input, end with CTRL+D when done"

    echo

}

[[ "$1" == '--help' ]] && help && exit

set -u

MULTILINE=0

while getopts mh arg; do

    case ${arg} in

        m) MULTILINE=1 ;;

        h) help && exit ;;

        *) help && exit 1 ;;

    esac

done

if [[ "$MULTILINE" = 1 ]]; then

    [ -t 0 ] && echo "Please type the lines that you want to encrypt, and press CTRL+D when done:" >/dev/stderr

    STRING=$(cat)

else

    [ -t 0 ] && echo "Please type the string that you want to encrypt:" >/dev/stderr

    read STRING

fi

[[ -z $STRING ]] && echo "ERROR: Input was empty" >/dev/stderr && exit 1

RECIPIENTS=( $(grep -E '^\s*0x' encrypted_pillar_recipients | while read i; do echo "-r $i"; done | xargs) )

echo -n "${STRING}" | gpg --armor --batch --trust-model always --encrypt "${RECIPIENTS[@]}"