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diff --git a/Gemfile b/Gemfile
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+++ b/Gemfile
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+source 'http://rubygems.org/'
+
+gem 'haml'
+gem 'sinatra', '>= 1.0'
diff --git a/README.md b/README.md
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+A simple Sinatra file upload application
+
+Starting:
+
+`$ rackup config.ru`
diff --git a/config.ru b/config.ru
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+++ b/config.ru
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+require 'file_upload'
+
+run FileUpload
diff --git a/file_upload.rb b/file_upload.rb
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+++ b/file_upload.rb
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+# encoding: utf-8
+
+require 'rubygems'
+require 'haml'
+require 'pathname'
+require 'sinatra/base'
+
+class FileUpload < Sinatra::Base
+  configure do
+    enable :static
+    enable :sessions
+    
+    set :views, Pathname.new(__FILE__).dirname.join('views').expand_path
+    set :public, Pathname.new(__FILE__).dirname.join('public').expand_path
+  end
+  
+  helpers do
+    def flash(message = '')
+      session[:flash] = message
+    end
+  end
+  
+  not_found do
+    haml '404'
+  end
+  
+  error do
+    haml "Error (#{request.env['sinatra.error']})"
+  end
+  
+  get '/' do
+    @files = settings.public.join('files').entries - [Pathname('.'), Pathname('..')]
+    
+    @flash = session[:flash]
+    session[:flash] = nil
+    
+    haml :index
+  end
+  
+  post '/upload' do
+    if params[:file]
+      filename = params[:file][:filename]
+      file = params[:file][:tempfile]
+      
+      File.open(settings.public.join('files', filename), 'wb') {|f| f.write file.read }
+      
+      flash 'Uploaded successfully'
+    else
+      flash 'You have to choose a file'
+    end
+    
+    redirect '/'
+  end
+end
diff --git a/public/css/style.css b/public/css/style.css
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+++ b/public/css/style.css
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+body {
+  background-color: #5CACEE;
+}
+
+a {
+  color: white;
+}
+
+a:hover {
+  color: black;
+}
diff --git a/views/index.haml b/views/index.haml
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+++ b/views/index.haml
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+%h1 Sinatra File Upload
+
+- if @flash
+  = @flash
+
+%form{:action => '/upload', :method => 'post', :enctype => 'multipart/form-data'}
+  %p<
+    %input{:type => 'file', :name => 'file'}
+  %p<
+    %input{:type => 'submit', :value => 'Upload'}
+
+%h3 Files
+- @files.each do |file|
+  = "<a href='files/#{file}'>#{file}</a>"
diff --git a/views/layout.haml b/views/layout.haml
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+++ b/views/layout.haml
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+!!!
+%html{:xmlns => 'http://www.w3.org/1999/xhtml'}
+  %head
+    %title Sinatra File Upload
+    %link{:rel => 'stylesheet', :type => 'text/css', :href => 'css/style.css'}
+    %meta{:content => 'text/html; charset=utf-8', :'http-equiv' => 'Content-Type'}
+  %body
+    = yield