diff options
Diffstat (limited to 'actionpack/lib/action_controller/metal.rb')
| -rw-r--r-- | actionpack/lib/action_controller/metal.rb | 145 |
1 files changed, 84 insertions, 61 deletions
diff --git a/actionpack/lib/action_controller/metal.rb b/actionpack/lib/action_controller/metal.rb index ae111e4951..8e040bb465 100644 --- a/actionpack/lib/action_controller/metal.rb +++ b/actionpack/lib/action_controller/metal.rb @@ -1,5 +1,7 @@ require 'active_support/core_ext/array/extract_options' require 'action_dispatch/middleware/stack' +require 'action_dispatch/http/request' +require 'action_dispatch/http/response' module ActionController # Extend ActionDispatch middleware stack to make it aware of options @@ -11,22 +13,14 @@ module ActionController # class MiddlewareStack < ActionDispatch::MiddlewareStack #:nodoc: class Middleware < ActionDispatch::MiddlewareStack::Middleware #:nodoc: - def initialize(klass, *args, &block) - options = args.extract_options! - @only = Array(options.delete(:only)).map(&:to_s) - @except = Array(options.delete(:except)).map(&:to_s) - args << options unless options.empty? - super + def initialize(klass, args, actions, strategy, block) + @actions = actions + @strategy = strategy + super(klass, args, block) end def valid?(action) - if @only.present? - @only.include?(action) - elsif @except.present? - !@except.include?(action) - else - true - end + @strategy.call @actions, action end end @@ -37,6 +31,32 @@ module ActionController middleware.valid?(action) ? middleware.build(a) : a end end + + private + + INCLUDE = ->(list, action) { list.include? action } + EXCLUDE = ->(list, action) { !list.include? action } + NULL = ->(list, action) { true } + + def build_middleware(klass, args, block) + options = args.extract_options! + only = Array(options.delete(:only)).map(&:to_s) + except = Array(options.delete(:except)).map(&:to_s) + args << options unless options.empty? + + strategy = NULL + list = nil + + if only.any? + strategy = INCLUDE + list = only + elsif except.any? + strategy = EXCLUDE + list = except + end + + Middleware.new(get_class(klass), args, list, strategy, block) + end end # <tt>ActionController::Metal</tt> is the simplest possible controller, providing a @@ -98,11 +118,10 @@ module ActionController class Metal < AbstractController::Base abstract! - attr_internal_writer :env - def env - @_env ||= {} + @_request.env end + deprecate :env # Returns the last part of the controller's name, underscored, without the ending # <tt>Controller</tt>. For instance, PostsController returns <tt>posts</tt>. @@ -114,23 +133,23 @@ module ActionController @controller_name ||= name.demodulize.sub(/Controller$/, '').underscore end + def self.make_response!(request) + ActionDispatch::Response.create.tap do |res| + res.request = request + end + end + # Delegates to the class' <tt>controller_name</tt> def controller_name self.class.controller_name end - # The details below can be overridden to support a specific - # Request and Response object. The default ActionController::Base - # implementation includes RackDelegation, which makes a request - # and response object available. You might wish to control the - # environment and response manually for performance reasons. - - attr_internal :headers, :response, :request + attr_internal :response, :request delegate :session, :to => "@_request" + delegate :headers, :status=, :location=, :content_type=, + :status, :location, :content_type, :to => "@_response" def initialize - @_headers = {"Content-Type" => "text/html"} - @_status = 200 @_request = nil @_response = nil @_routes = nil @@ -145,64 +164,51 @@ module ActionController @_params = val end - # Basic implementations for content_type=, location=, and headers are - # provided to reduce the dependency on the RackDelegation module - # in Renderer and Redirector. - - def content_type=(type) - headers["Content-Type"] = type.to_s - end - - def content_type - headers["Content-Type"] - end - - def location - headers["Location"] - end - - def location=(url) - headers["Location"] = url - end + alias :response_code :status # :nodoc: # Basic url_for that can be overridden for more robust functionality def url_for(string) string end - def status - @_status - end - alias :response_code :status # :nodoc: - - def status=(status) - @_status = Rack::Utils.status_code(status) - end - def response_body=(body) body = [body] unless body.nil? || body.respond_to?(:each) + response.reset_body! + body.each { |part| + next if part.empty? + response.write part + } super end # Tests if render or redirect has already happened. def performed? - response_body || (response && response.committed?) + response_body || response.committed? end - def dispatch(name, request) #:nodoc: + def dispatch(name, request, response) #:nodoc: set_request!(request) + set_response!(response) process(name) + request.commit_flash to_a end + def set_response!(response) # :nodoc: + @_response = response + end + def set_request!(request) #:nodoc: @_request = request - @_env = request.env - @_env['action_controller.instance'] = self + @_request.controller_instance = self end def to_a #:nodoc: - response ? response.to_a : [status, headers, response_body] + response.to_a + end + + def reset_session + @_request.reset_session end class_attribute :middleware_stack @@ -230,15 +236,32 @@ module ActionController req = ActionDispatch::Request.new env action(req.path_parameters[:action]).call(env) end + class << self; deprecate :call; end # Returns a Rack endpoint for the given action name. - def self.action(name, klass = ActionDispatch::Request) + def self.action(name) if middleware_stack.any? middleware_stack.build(name) do |env| - new.dispatch(name, klass.new(env)) + req = ActionDispatch::Request.new(env) + res = make_response! req + new.dispatch(name, req, res) end else - lambda { |env| new.dispatch(name, klass.new(env)) } + lambda { |env| + req = ActionDispatch::Request.new(env) + res = make_response! req + new.dispatch(name, req, res) + } + end + end + + # Direct dispatch to the controller. Instantiates the controller, then + # executes the action named +name+. + def self.dispatch(name, req, res) + if middleware_stack.any? + middleware_stack.build(name) { |env| new.dispatch(name, req, res) }.call req.env + else + new.dispatch(name, req, res) end end end |