quickserve

#!/bin/bash

# quickserve - easy and convenient HTTP server that serves directory listings and files.

port=8080

fifo=`mktemp /tmp/XXXXXX`
output_buffer=`mktemp /tmp/XXXXXX`

rm -f "$fifo"
mkfifo "$fifo"

echo "Listening on $port" >&2

trap 'echo -e "\rGoodbye."; rm -f "$fifo"; rm -f "$output_buffer"; exit' 2


netcat_help=$(nc -h 2>&1)

while true; do
  if [[ "$netcat_help" =~ 'GNU' ]]; then
    nc -l -p "$port"
  else
    nc -l "localhost" "$port"
  fi < "$fifo" |
        head -n 1 |
        cut -d' ' -f2 | (
            read uri
            echo "[$(date)] $uri" >&2
            if [ -d "$uri" ]; then
                escuri="$(echo "$uri" | sed -e "s/'/\&#039;/" | sed -e 's/>/\&gt;/' | sed -e 's/</\&lt;/')"
                echo "<h2>Directory listing for $escuri</h2>" > $output_buffer
                echo "<ul>" >> $output_buffer
                if [[ "$escuri" != */ ]]; then
                    escuri="$escuri/"
                fi
                ls -a "$uri" |
                    tail -n +2 |
                    sed -e "s/'/\&#039;/" |
                    sed -e 's/>/\&gt;/' |
                    sed -e 's/</\&lt;/' |
                    sed -e "s!\(.*\)!<li><a href='$escuri\1'>\1</a></li>!" >> $output_buffer
                echo "</ul>" >> $output_buffer
                echo "HTTP/1.1 200 OK"
                echo "Connection: close"
                echo "Content-Type: text/html"
                echo "Content-Length: $(stat $output_buffer | cut -d' ' -f8)"
                echo
                cat $output_buffer
            elif [ -f "$uri" ]; then
                mime="$(file --mime-type "$uri" | sed -e 's/^.*: \(.*\)/\1/')"
                echo "HTTP/1.1 200 OK"
                echo "Connection: close"
                echo "Content-Type: $mime"
                echo "Content-Length: $(stat "$uri" | cut -d' ' -f8)"
                echo
                cat "$uri"
            else
                echo "HTTP/1.1 404 NotFound"
                echo "Connection: close"
                echo "Content-Type: text/html"
                echo "Content-Length: 19"
                echo
                echo "<h2>Not Found</h2>"
            fi
        ) > "$fifo"
done