class Sinatra::ExtendedRack

Some Rack handlers (Thin, Rainbows!) implement an extended body object protocol, however, some middleware (namely Rack::Lint) will break it by not mirroring the methods in question. This middleware will detect an extended body object and will make sure it reaches the handler directly. We do this here, so our middleware and middleware set up by the app will still be able to run.

Public Instance Methods

call(env) click to toggle source
# File lib/sinatra/base.rb, line 123
def call(env)
  result, callback = app.call(env), env['async.callback']
  return result unless callback and async?(*result)
  after_response { callback.call result }
  setup_close(env, *result)
  throw :async
end

Private Instance Methods

after_response(&block) click to toggle source
# File lib/sinatra/base.rb, line 139
def after_response(&block)
  raise NotImplementedError, "only supports EventMachine at the moment" unless defined? EventMachine
  EventMachine.next_tick(&block)
end
async?(status, headers, body) click to toggle source
# File lib/sinatra/base.rb, line 144
def async?(status, headers, body)
  return true if status == -1
  body.respond_to? :callback and body.respond_to? :errback
end
setup_close(env, status, header, body) click to toggle source
# File lib/sinatra/base.rb, line 133
def setup_close(env, status, header, body)
  return unless body.respond_to? :close and env.include? 'async.close'
  env['async.close'].callback { body.close }
  env['async.close'].errback { body.close }
end