require_ssl.rb

class RequireSSL
  def initialize app,options={}
    @app = app
  end
  def call_ env
    request = ::Rack::Request.new env
    unless secure? env
      [302,{"Location"=> request.url.sub('http://','https://')},'']
    else
      @app.call env
    end
  end
  
  def call env
    self.dup.call_ env
  end
  # File vendor/rails/actionpack/lib/action_controller/request.rb, line 271 + modifications
  def secure? env
    env['HTTPS'] == 'on' || env['HTTP_X_FORWARDED_PROTO'] == 'https'
  end

end