Get rid of the close checks since we cannot reliably close the session anyway.

actionpack/lib/action_dispatch.rb

@@ -63,7 +63,6 @@ module ActionDispatch
     autoload :Static
   end
 
-  autoload :ClosedError, 'action_dispatch/middleware/closed_error'
   autoload :MiddlewareStack, 'action_dispatch/middleware/stack'
   autoload :Routing
 

actionpack/lib/action_dispatch/middleware/closed_error.rb

-module ActionDispatch
-  class ClosedError < StandardError #:nodoc:
-    def initialize(kind)
-      super "Cannot modify #{kind} because it was closed. This means it was already streamed back to the client or converted to HTTP headers."
-    end
-  end
-end

actionpack/lib/action_dispatch/middleware/cookies.rb

@@ -121,10 +121,6 @@ def initialize(secret = nil, host = nil, secure = false)
         @cookies = {}
       end
 
-      attr_reader :closed
-      alias :closed? :closed
-      def close!; @closed = true end
-
       def each(&block)
         @cookies.each(&block)
       end
@@ -165,7 +161,6 @@ def handle_options(options) #:nodoc:
       # Sets the cookie named +name+. The second argument may be the very cookie
       # value, or a hash of options as documented above.
       def []=(key, options)
-        raise ClosedError, :cookies if closed?
         if options.is_a?(Hash)
           options.symbolize_keys!
           value = options[:value]
@@ -259,7 +254,6 @@ def initialize(parent_jar, secret)
       end
 
       def []=(key, options)
-        raise ClosedError, :cookies if closed?
         if options.is_a?(Hash)
           options.symbolize_keys!
         else
@@ -298,7 +292,6 @@ def [](name)
       end
 
       def []=(key, options)
-        raise ClosedError, :cookies if closed?
         if options.is_a?(Hash)
           options.symbolize_keys!
           options[:value] = @verifier.generate(options[:value])
@@ -352,9 +345,6 @@ def call(env)
       end
 
       [status, headers, body]
-    ensure
-      cookie_jar = ActionDispatch::Request.new(env).cookie_jar unless cookie_jar
-      cookie_jar.close!
     end
   end
 end

actionpack/lib/action_dispatch/middleware/flash.rb

@@ -93,7 +93,6 @@ def initialize_copy(other)
       end
 
       def []=(k, v) #:nodoc:
-        raise ClosedError, :flash if closed?
         keep(k)
         @flashes[k] = v
       end
@@ -159,10 +158,6 @@ def now
         @now ||= FlashNow.new(self)
       end
 
-      attr_reader :closed
-      alias :closed? :closed
-      def close!; @closed = true; end
-
       # Keeps either the entire current flash or a specific flash entry available for the next action:
       #
       #    flash.keep            # keeps the entire flash
@@ -258,7 +253,6 @@ def call(env)
         end
 
         env[KEY] = new_hash
-        new_hash.close!
       end
 
       if session.key?('flash') && session['flash'].empty?

actionpack/lib/action_dispatch/middleware/session/abstract_store.rb

@@ -74,10 +74,6 @@ def stale_session_check!
     class AbstractStore < Rack::Session::Abstract::ID
       include Compatibility
       include StaleSessionCheck
-
-      def destroy_session(env, sid, options)
-        raise '#destroy_session needs to be implemented.'
-      end
     end
   end
 end

actionpack/test/controller/flash_test.rb

@@ -254,16 +254,6 @@ def test_just_using_flash_does_not_stream_a_cookie_back
     end
   end
 
-  def test_setting_flash_raises_after_stream_back_to_client
-    with_test_route_set do
-      env = { 'action_dispatch.request.flash_hash' => ActionDispatch::Flash::FlashHash.new }
-      get '/set_flash', nil, env
-      assert_raise(ActionDispatch::ClosedError) {
-        @request.flash['alert'] = 'alert'
-      }
-    end
-  end
-
   def test_setting_flash_does_not_raise_in_following_requests
     with_test_route_set do
       env = { 'action_dispatch.request.flash_hash' => ActionDispatch::Flash::FlashHash.new }
@@ -280,36 +270,6 @@ def test_setting_flash_now_does_not_raise_in_following_requests
     end
   end
 
-  def test_setting_flash_raises_after_stream_back_to_client_even_with_an_empty_flash
-    with_test_route_set do
-      env = { 'action_dispatch.request.flash_hash' => ActionDispatch::Flash::FlashHash.new }
-      get '/dont_set_flash', nil, env
-      assert_raise(ActionDispatch::ClosedError) {
-        @request.flash['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_flash_now_raises_after_stream_back_to_client
-    with_test_route_set do
-      env = { 'action_dispatch.request.flash_hash' => ActionDispatch::Flash::FlashHash.new }
-      get '/set_flash_now', nil, env
-      assert_raise(ActionDispatch::ClosedError) {
-        @request.flash.now['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_flash_now_raises_after_stream_back_to_client_even_with_an_empty_flash
-    with_test_route_set do
-      env = { 'action_dispatch.request.flash_hash' => ActionDispatch::Flash::FlashHash.new }
-      get '/dont_set_flash', nil, env
-      assert_raise(ActionDispatch::ClosedError) {
-        @request.flash.now['alert'] = 'alert'
-      }
-    end
-  end
-
   private
 
     # Overwrite get to send SessionSecret in env hash

actionpack/test/dispatch/cookies_test.rb

@@ -564,100 +564,4 @@ def assert_not_cookie_header(expected)
         assert_not_equal expected.split("\n"), header
       end
     end
-end
-
-class CookiesIntegrationTest < ActionDispatch::IntegrationTest
-  SessionKey = '_myapp_session'
-  SessionSecret = 'b3c631c314c0bbca50c1b2843150fe33'
-
-  class TestController < ActionController::Base
-    def dont_set_cookies
-      head :ok
-    end
-
-    def set_cookies
-      cookies["that"] = "hello"
-      head :ok
-    end
-  end
-
-  def test_setting_cookies_raises_after_stream_back_to_client
-    with_test_route_set do
-      get '/set_cookies'
-      assert_raise(ActionDispatch::ClosedError) {
-        request.cookie_jar['alert'] = 'alert'
-        cookies['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_cookies_raises_after_stream_back_to_client_even_without_cookies
-    with_test_route_set do
-      get '/dont_set_cookies'
-      assert_raise(ActionDispatch::ClosedError) {
-        request.cookie_jar['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_permanent_cookies_raises_after_stream_back_to_client
-    with_test_route_set do
-      get '/set_cookies'
-      assert_raise(ActionDispatch::ClosedError) {
-        request.cookie_jar.permanent['alert'] = 'alert'
-        cookies['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_permanent_cookies_raises_after_stream_back_to_client_even_without_cookies
-    with_test_route_set do
-      get '/dont_set_cookies'
-      assert_raise(ActionDispatch::ClosedError) {
-        request.cookie_jar.permanent['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_signed_cookies_raises_after_stream_back_to_client
-    with_test_route_set do
-      get '/set_cookies'
-      assert_raise(ActionDispatch::ClosedError) {
-        request.cookie_jar.signed['alert'] = 'alert'
-        cookies['alert'] = 'alert'
-      }
-    end
-  end
-
-  def test_setting_signed_cookies_raises_after_stream_back_to_client_even_without_cookies
-    with_test_route_set do
-      get '/dont_set_cookies'
-      assert_raise(ActionDispatch::ClosedError) {
-        request.cookie_jar.signed['alert'] = 'alert'
-      }
-    end
-  end
-
-  private
-
-  # Overwrite get to send SessionSecret in env hash
-  def get(path, parameters = nil, env = {})
-    env["action_dispatch.secret_token"] ||= SessionSecret
-    super
-  end
-
-  def with_test_route_set
-    with_routing do |set|
-      set.draw do
-        match ':action', :to => CookiesIntegrationTest::TestController
-      end
-
-      @app = self.class.build_app(set) do |middleware|
-        middleware.use ActionDispatch::Cookies
-        middleware.delete "ActionDispatch::ShowExceptions"
-      end
-
-      yield
-    end
-  end
-end
+end
\ No newline at end of file