#!/bin/bash
# Usage: send-file <port> <key> <file>

PORT=${1:-4443}
KEY="$2"
FILE=$3

IV=$(chacha20 keygen $KEY)

# Send the key and IV
KEY_IV=$( (echo $KEY && echo $IV) | gpg --encrypt --armour)
nc -l -p $PORT || exit 1 <<< $KEY_IV

echo "Sending file"

# Send the file
cat $FILE | gzip | chacha20 e $KEY $IV | nc -l -p $PORT || exit 2

echo "Sent"