gistfile1.rb

module Rack
  class AllYourBase
 
    def initialize(app, options = {})
      @app = app
      @options = options
    end
    
    def call(env)
      @request = Rack::Request.new(env)
      status, @headers, @body = @app.call(env)
      @body = "All your base are belong to us"
      update_content_length
      [status, @headers, @body]
    end
    
    private

    def update_content_length
      @headers['Content-Length'] = Rack::Utils.bytesize(@body).to_s
    end
 
  end
end