Simple ruby script to upload and view images.

image-uploader.rb

require 'rubygems'
require 'sinatra'

get '/' do
"uploader up"
end

post '/image' do
  puts params.inspect
  File.open("upload-dir/#{params[:id]}", "w") do |f|
      f.write(params[:photo][:tempfile].read)
  end
end

get '/image' do
  files = ""
  Dir.foreach("upload-dir/") do |file|
    files << "<a type='image/png' href='http://example.com/image/view/#{file}'>#{file}</a><br/>"
  end
  files
end

get '/image/:filename' do |filename|
  send_file "./upload-dir/#{filename}", :filename => filename, :type => 'image/png'
end

get '/image/view/:filename' do |filename|
  "<img src='http://example.com/image/#{filename}'>"
end