Merge branch 'master' into subscription-rejection

.travis.yml

@@ -8,11 +8,15 @@ rvm:
 
 gemfile:
   - Gemfile
-  - gemfiles/rails_4-2-stable.gemfile
+  - gemfiles/Gemfile.rails-4-2
 
 matrix:
   fast_finish: true
-  allow_failures: ruby-head
+  allow_failures:
+    - ruby-head
+
+services:
+  - redis-server
 
 notifications:
   email: false

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/rack/rack.git
-  revision: 6216a3f8a3560639ee1ddadc1e0d6bf9e5f31830
+  revision: 35599cfc2751e0ee611c0ff799924b8e7fe0c0b4
   specs:
     rack (2.0.0.alpha)
       json
@@ -13,7 +13,7 @@ GIT
 
 GIT
   remote: git://github.com/rails/rails.git
-  revision: 960de47f0eef79d234eb3cfc47fabb470fef1529
+  revision: f94e328cf801fd5c8055b06c4ee5439273146833
   specs:
     actionpack (5.0.0.alpha)
       actionview (= 5.0.0.alpha)
@@ -59,7 +59,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     builder (3.2.2)
-    celluloid (0.16.1)
+    celluloid (0.16.0)
       timers (~> 4.0.0)
     coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
@@ -92,7 +92,7 @@ GEM
       metaclass (~> 0.0.1)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
-    puma (2.12.2)
+    puma (2.14.0)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails-deprecated_sanitizer (1.0.3)

README.md

@@ -63,6 +63,8 @@ module ApplicationCable
   end
 end
 ```
+Here `identified_by` is a connection identifier that can be used to find the specific connection again or later.
+Note that anything marked as an identifier will automatically create a delegate by the same name on any channel instances created off the connection.
 
 Then you should define your `ApplicationCable::Channel` class in Ruby. This is the place where you put
 shared logic between your channels.
@@ -317,7 +319,7 @@ application. The recommended basic setup is as follows:
 
 ```ruby
 # cable/config.ru
-require ::File.expand_path('../../config/environment',  __FILE__)
+require ::File.expand_path('../../config/environment', __FILE__)
 Rails.application.eager_load!
 
 require 'action_cable/process/logging'
@@ -328,7 +330,7 @@ run ActionCable.server
 Then you start the server using a binstub in bin/cable ala:
 ```
 #!/bin/bash
-bundle exec puma -p 28080  cable/config.ru
+bundle exec puma -p 28080 cable/config.ru
 ```
 
 The above will start a cable server on port 28080. Remember to point your client-side setup against that using something like:

lib/action_cable/channel/base.rb

@@ -76,10 +76,7 @@ module ActionCable
       SUBSCRIPTION_CONFIRMATION_INTERNAL_MESSAGE = 'confirm_subscription'.freeze
       SUBSCRIPTION_REJECTION_INTERNAL_MESSAGE = 'reject_subscription'.freeze
 
-      on_subscribe   :subscribed
-      on_unsubscribe :unsubscribed
-
-      attr_reader :params, :connection, :identifier
+      attr_reader :params, :connection, ::identifier
       delegate :logger, to: :connection
 
       class << self
@@ -147,7 +144,9 @@ module ActionCable
       # Called by the cable connection when its cut so the channel has a chance to cleanup with callbacks.
       # This method is not intended to be called directly by the user. Instead, overwrite the #unsubscribed callback.
       def unsubscribe_from_channel
-        run_unsubscribe_callbacks
+        run_callbacks :unsubscribe do
+          unsubscribed
+        end
       end
 
 
@@ -202,7 +201,9 @@ module ActionCable
 
 
         def subscribe_to_channel
-          run_subscribe_callbacks
+          run_callbacks :subscribe do
+            subscribed
+          end
 
           if subscription_rejected?
             reject_subscription
@@ -238,19 +239,10 @@ module ActionCable
           end
         end
 
-        def run_subscribe_callbacks
-          self.class.on_subscribe_callbacks.each { |callback| send(callback) }
-        end
-
-        def run_unsubscribe_callbacks
-          self.class.on_unsubscribe_callbacks.each { |callback| send(callback) }
-        end
-
         def transmit_subscription_confirmation
           unless subscription_confirmation_sent?
             logger.info "#{self.class.name} is transmitting the subscription confirmation"
             connection.transmit ActiveSupport::JSON.encode(identifier: @identifier, type: SUBSCRIPTION_CONFIRMATION_INTERNAL_MESSAGE)
-
             @subscription_confirmation_sent = true
           end
         end
@@ -264,7 +256,6 @@ module ActionCable
           logger.info "#{self.class.name} is transmitting the subscription rejection"
           connection.transmit ActiveSupport::JSON.encode(identifier: @identifier, type: SUBSCRIPTION_REJECTION_INTERNAL_MESSAGE)
         end
-
     end
   end
 end

lib/action_cable/channel/callbacks.rb

@@ -1,28 +1,35 @@
+require 'active_support/callbacks'
+
 module ActionCable
   module Channel
     module Callbacks
-      extend ActiveSupport::Concern
+      extend  ActiveSupport::Concern
+      include ActiveSupport::Callbacks
 
       included do
-        class_attribute :on_subscribe_callbacks, :on_unsubscribe_callbacks, instance_reader: false
-
-        self.on_subscribe_callbacks = []
-        self.on_unsubscribe_callbacks = []
+        define_callbacks :subscribe
+        define_callbacks :unsubscribe
       end
 
-      module ClassMethods
-        # Name methods that should be called when the channel is subscribed to.
-        # (These methods should be private, so they're not callable by the user).
-        def on_subscribe(*methods)
-          self.on_subscribe_callbacks += methods
+      class_methods do
+        def before_subscribe(*methods, &block)
+          set_callback(:subscribe, :before, *methods, &block)
         end
 
-        # Name methods that should be called when the channel is unsubscribed from.
-        # (These methods should be private, so they're not callable by the user).
-        def on_unsubscribe(*methods)
-          self.on_unsubscribe_callbacks += methods
+        def after_subscribe(*methods, &block)
+          set_callback(:subscribe, :after, *methods, &block)
         end
+        alias_method :on_subscribe, :after_subscribe
+
+        def before_unsubscribe(*methods, &block)
+          set_callback(:unsubscribe, :before, *methods, &block)
+        end
+
+        def after_unsubscribe(*methods, &block)
+          set_callback(:unsubscribe, :after, *methods, &block)
+        end
+        alias_method :on_unsubscribe, :after_unsubscribe
       end
     end
   end
-end
+end

lib/action_cable/channel/periodic_timers.rb

@@ -7,8 +7,8 @@ module ActionCable
         class_attribute :periodic_timers, instance_reader: false
         self.periodic_timers = []
 
-        on_subscribe   :start_periodic_timers
-        on_unsubscribe :stop_periodic_timers
+        after_subscribe   :start_periodic_timers
+        after_unsubscribe :stop_periodic_timers
       end
 
       module ClassMethods
@@ -38,4 +38,4 @@ module ActionCable
         end
     end
   end
-end
+end

lib/action_cable/connection/base.rb

@@ -56,7 +56,7 @@ module ActionCable
       def initialize(server, env)
         @server, @env = server, env
 
-        @logger = new_tagged_logger
+        @logger = new_tagged_logger || server.logger
 
         @websocket      = ActionCable::Connection::WebSocket.new(env)
         @subscriptions  = ActionCable::Connection::Subscriptions.new(self)
@@ -151,7 +151,6 @@ module ActionCable
           server.add_connection(self)
         rescue ActionCable::Connection::Authorization::UnauthorizedError
           respond_to_invalid_request
-          close
         end
 
         def on_message(message)
@@ -186,6 +185,8 @@ module ActionCable
         end
 
         def respond_to_invalid_request
+          close if websocket.alive?
+
           logger.info finished_request_message
           [ 404, { 'Content-Type' => 'text/plain' }, [ 'Page not found' ] ]
         end
@@ -193,8 +194,10 @@ module ActionCable
 
         # Tags are declared in the server but computed in the connection. This allows us per-connection tailored tags.
         def new_tagged_logger
-          TaggedLoggerProxy.new server.logger,
-            tags: server.config.log_tags.map { |tag| tag.respond_to?(:call) ? tag.call(request) : tag.to_s.camelize }
+          if server.logger.respond_to?(:tagged)
+            TaggedLoggerProxy.new server.logger,
+              tags: server.config.log_tags.map { |tag| tag.respond_to?(:call) ? tag.call(request) : tag.to_s.camelize }
+          end
         end
 
         def started_request_message

test/channel/base_test.rb

@@ -20,8 +20,8 @@ class ActionCable::Channel::BaseTest < ActiveSupport::TestCase
 
   class ChatChannel < BasicChannel
     attr_reader :room, :last_action
-    on_subscribe :toggle_subscribed
-    on_unsubscribe :toggle_subscribed
+    after_subscribe :toggle_subscribed
+    after_unsubscribe :toggle_subscribed
 
     def initialize(*)
       @subscribed = false

test/connection/authorization_test.rb

@@ -8,17 +8,25 @@ class ActionCable::Connection::AuthorizationTest < ActionCable::TestCase
     def connect
       reject_unauthorized_connection
     end
+
+    def send_async(method, *args)
+      # Bypass Celluloid
+      send method, *args
+    end
   end
 
   test "unauthorized connection" do
     run_in_eventmachine do
       server = TestServer.new
-      env = Rack::MockRequest.env_for "/test", 'HTTP_CONNECTION' => 'upgrade', 'HTTP_UPGRADE' => 'websocket'
+      server.config.allowed_request_origins = %w( http://rubyonrails.com )
+
+      env = Rack::MockRequest.env_for "/test", 'HTTP_CONNECTION' => 'upgrade', 'HTTP_UPGRADE' => 'websocket',
+        'HTTP_ORIGIN' => 'http://rubyonrails.com'
 
       connection = Connection.new(server, env)
       connection.websocket.expects(:close)
+
       connection.process
-      connection.send :on_open
     end
   end
 end