serve

#!/bin/bash
#BASH script to serve files
#Usage: serve <filename>
#if root then port 80 is used, else port 660

FILE=$1;
#TODO: split FILENAME from FILE
PORT=6600;
#TODO: Add dynamic ports

[[ $UID = 0 ]] && PORT=80 #I know it's a bad idea

if [[ ! -e $FILE ]]; then
	echo "File does not exist";
	exit 1;
fi


date=$(date +"%a, %d %b %Y %H:%M:%S %Z")

size=`du -b $FILE | awk '{print $1}'`
echo $size
header="HTTP/1.1 200 OK\r\n\
Server: Netcat File Server\r\n\
Date: $date\r\n\
Content-type: application/octet-stream\r\n\
Content-Length: $size\r\n\
Connection: close\r\n\
Content-Disposition: attachment; filename=\"$FILE\"
Last Modified:$date\r\n\r\n";
shout(){
	printf "%s$header";
	cat $FILE
	printf "%s\c"
}

#TODO: Include Error if port is in use
shout | nc -l -p $PORT

#TODO: Read about file descriptors