fileserver.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'sinatra'
require 'haml'
require 'fileutils'

set :port, 25000

$pwd = ENV['PWD']

def file_listing(directory)
  Dir.glob(directory + '/*')
end

get '/upload' do
  haml :upload
end

post '/' do 
  filepath = params[:filePath]
  dir = Dir.pwd + filepath[0, filepath.rindex("/")]
  FileUtils.mkdir_p dir
  file = params[:file]
  filename = file[:filename]
  tempfile = file[:tempfile]
  File.open(Dir.pwd + filepath, 'w') {|f| f.write tempfile.read}
  redirect '/'
end

get '/*' do |rel_path|
  path = File.join(Dir.pwd, rel_path)
  if File.file?(path)
    send_file(path, :disposition => 'attachment')
  elsif File.directory?(path)
    @files = file_listing(path)
    haml :index
  else
    haml :upload
  end
end

__END__

@@ layout
%html
  = yield
  

@@ index
%h1 File Server
%table
  %tr
    %th File
    %th Size
  - for file in @files
    %tr
      %td
        %a{:title => file, :href => file.sub(Dir.pwd, "").gsub("//", "/")}=File.basename(file) + (File.directory?(file) ? "/" : "")
      %td= File.size(file).to_s + "b"

@@upload
%h1 Upload

%form{:action=>"/",:method=>'post',:enctype=>"multipart/form-data"}
  %input{:type => "file",:name => "file"}
  %input{:type => "submit",:value => "Upload"}