module Rack
module Sinatra
module Sinatra::Compat
module Sinatra::Delegator
module Sinatra::Helpers
module Sinatra::Templates
module Sinatra::Test
class Rack::File
class Sinatra::Application
class Sinatra::Base
class Sinatra::Default
class Sinatra::Default::Options
class Sinatra::Helpers::StaticFile
class Sinatra::NotFound
class Sinatra::Request
class Sinatra::Response
class Sinatra::ServerError
class Sinatra::ShowExceptions
class Sinatra::TestHarness
class String
sinatra
0.9.6
# user_agent
def user_agent @env['HTTP_USER_AGENT'] end