diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/action_cable.rb | 33 | ||||
-rw-r--r-- | lib/action_cable/channel.rb | 16 | ||||
-rw-r--r-- | lib/action_cable/channel/base.rb | 8 | ||||
-rw-r--r-- | lib/action_cable/connection.rb | 20 | ||||
-rw-r--r-- | lib/action_cable/connection/base.rb | 34 | ||||
-rw-r--r-- | lib/action_cable/connection/identification.rb | 12 | ||||
-rw-r--r-- | lib/action_cable/connection/internal_channel.rb | 4 | ||||
-rw-r--r-- | lib/action_cable/connection/message_buffer.rb | 4 | ||||
-rw-r--r-- | lib/action_cable/connection/subscriptions.rb | 2 | ||||
-rw-r--r-- | lib/action_cable/connection/web_socket.rb | 2 | ||||
-rw-r--r-- | lib/action_cable/engine.rb | 18 | ||||
-rw-r--r-- | lib/action_cable/server.rb | 20 | ||||
-rw-r--r-- | lib/action_cable/server/base.rb | 4 | ||||
-rw-r--r-- | lib/action_cable/server/broadcasting.rb | 6 | ||||
-rw-r--r-- | lib/action_cable/server/configuration.rb | 2 | ||||
-rw-r--r-- | lib/action_cable/server/connections.rb | 6 | ||||
-rw-r--r-- | lib/action_cable/server/worker.rb | 5 |
17 files changed, 120 insertions, 76 deletions
diff --git a/lib/action_cable.rb b/lib/action_cable.rb index d2c5251634..89ffa1fda7 100644 --- a/lib/action_cable.rb +++ b/lib/action_cable.rb @@ -1,32 +1,21 @@ -require 'eventmachine' -EventMachine.epoll if EventMachine.epoll? -EventMachine.kqueue if EventMachine.kqueue? - -require 'set' - require 'active_support' -require 'active_support/json' -require 'active_support/concern' -require 'active_support/core_ext/hash/indifferent_access' -require 'active_support/core_ext/module/delegation' -require 'active_support/callbacks' - -require 'faye/websocket' -require 'celluloid' -require 'em-hiredis' -require 'redis' - -require 'action_cable/engine' if defined?(Rails) +require 'active_support/rails' require 'action_cable/version' module ActionCable - autoload :Server, 'action_cable/server' - autoload :Connection, 'action_cable/connection' - autoload :Channel, 'action_cable/channel' - autoload :RemoteConnections, 'action_cable/remote_connections' + extend ActiveSupport::Autoload # Singleton instance of the server module_function def server @server ||= ActionCable::Server::Base.new end + + eager_autoload do + autoload :Server + autoload :Connection + autoload :Channel + autoload :RemoteConnections + end end + +require 'action_cable/engine' if defined?(Rails) diff --git a/lib/action_cable/channel.rb b/lib/action_cable/channel.rb index 3b973ba0a7..7ae262ce5f 100644 --- a/lib/action_cable/channel.rb +++ b/lib/action_cable/channel.rb @@ -1,10 +1,14 @@ module ActionCable module Channel - autoload :Base, 'action_cable/channel/base' - autoload :Broadcasting, 'action_cable/channel/broadcasting' - autoload :Callbacks, 'action_cable/channel/callbacks' - autoload :Naming, 'action_cable/channel/naming' - autoload :PeriodicTimers, 'action_cable/channel/periodic_timers' - autoload :Streams, 'action_cable/channel/streams' + extend ActiveSupport::Autoload + + eager_autoload do + autoload :Base + autoload :Broadcasting + autoload :Callbacks + autoload :Naming + autoload :PeriodicTimers + autoload :Streams + end end end diff --git a/lib/action_cable/channel/base.rb b/lib/action_cable/channel/base.rb index 2f1b4a187d..df87064195 100644 --- a/lib/action_cable/channel/base.rb +++ b/lib/action_cable/channel/base.rb @@ -1,6 +1,8 @@ +require 'set' + module ActionCable module Channel - # The channel provides the basic structure of grouping behavior into logical units when communicating over the websocket connection. + # The channel provides the basic structure of grouping behavior into logical units when communicating over the WebSocket connection. # You can think of a channel like a form of controller, but one that's capable of pushing content to the subscriber in addition to simply # responding to the subscriber's direct requests. # @@ -139,7 +141,6 @@ module ActionCable # This method is not intended to be called directly by the user. Instead, overwrite the #unsubscribed callback. def unsubscribe_from_channel run_unsubscribe_callbacks - logger.info "#{self.class.name} unsubscribed" end @@ -160,7 +161,7 @@ module ActionCable # the proper channel identifier marked as the recipient. def transmit(data, via: nil) logger.info "#{self.class.name} transmitting #{data.inspect}".tap { |m| m << " (via #{via})" if via } - connection.transmit({ identifier: @identifier, message: data }.to_json) + connection.transmit ActiveSupport::JSON.encode(identifier: @identifier, message: data) end @@ -175,7 +176,6 @@ module ActionCable def subscribe_to_channel - logger.info "#{self.class.name} subscribing" run_subscribe_callbacks end diff --git a/lib/action_cable/connection.rb b/lib/action_cable/connection.rb index 3d6ed6a6e8..b672e00682 100644 --- a/lib/action_cable/connection.rb +++ b/lib/action_cable/connection.rb @@ -1,12 +1,16 @@ module ActionCable module Connection - autoload :Authorization, 'action_cable/connection/authorization' - autoload :Base, 'action_cable/connection/base' - autoload :Identification, 'action_cable/connection/identification' - autoload :InternalChannel, 'action_cable/connection/internal_channel' - autoload :MessageBuffer, 'action_cable/connection/message_buffer' - autoload :WebSocket, 'action_cable/connection/web_socket' - autoload :Subscriptions, 'action_cable/connection/subscriptions' - autoload :TaggedLoggerProxy, 'action_cable/connection/tagged_logger_proxy' + extend ActiveSupport::Autoload + + eager_autoload do + autoload :Authorization + autoload :Base + autoload :Identification + autoload :InternalChannel + autoload :MessageBuffer + autoload :WebSocket + autoload :Subscriptions + autoload :TaggedLoggerProxy + end end end diff --git a/lib/action_cable/connection/base.rb b/lib/action_cable/connection/base.rb index 2f2fa1fdec..9f74226f98 100644 --- a/lib/action_cable/connection/base.rb +++ b/lib/action_cable/connection/base.rb @@ -1,8 +1,8 @@ -require 'action_dispatch/http/request' +require 'action_dispatch' module ActionCable module Connection - # For every websocket the cable server is accepting, a Connection object will be instantiated. This instance becomes the parent + # For every WebSocket the cable server is accepting, a Connection object will be instantiated. This instance becomes the parent # of all the channel subscriptions that are created from there on. Incoming messages are then routed to these channel subscriptions # based on an identifier sent by the cable consumer. The Connection itself does not deal with any specific application logic beyond # authentication and authorization. @@ -37,8 +37,8 @@ module ActionCable # established for that current_user (and potentially disconnect them if the user was removed from an account). You can declare as many # identification indexes as you like. Declaring an identification means that a attr_accessor is automatically set for that key. # - # Second, we rely on the fact that the websocket connection is established with the cookies from the domain being sent along. This makes - # it easy to use signed cookies that were set when logging in via a web interface to authorize the websocket connection. + # Second, we rely on the fact that the WebSocket connection is established with the cookies from the domain being sent along. This makes + # it easy to use signed cookies that were set when logging in via a web interface to authorize the WebSocket connection. # # Finally, we add a tag to the connection-specific logger with name of the current user to easily distinguish their messages in the log. # @@ -65,7 +65,7 @@ module ActionCable @started_at = Time.now end - # Called by the server when a new websocket connection is established. This configures the callbacks intended for overwriting by the user. + # Called by the server when a new WebSocket connection is established. This configures the callbacks intended for overwriting by the user. # This method should not be called directly. Rely on the #connect (and #disconnect) callback instead. def process logger.info started_request_message @@ -87,19 +87,18 @@ module ActionCable if websocket.alive? subscriptions.execute_command ActiveSupport::JSON.decode(data_in_json) else - logger.error "Received data without a live websocket (#{data.inspect})" + logger.error "Received data without a live WebSocket (#{data_in_json.inspect})" end end - # Send raw data straight back down the websocket. This is not intended to be called directly. Use the #transmit available on the + # Send raw data straight back down the WebSocket. This is not intended to be called directly. Use the #transmit available on the # Channel instead, as that'll automatically address the correct subscriber and wrap the message in JSON. def transmit(data) websocket.transmit data end - # Close the websocket connection. + # Close the WebSocket connection. def close - logger.error "Closing connection" websocket.close end @@ -120,12 +119,12 @@ module ActionCable end def beat - transmit({ identifier: '_ping', message: Time.now.to_i }.to_json) + transmit ActiveSupport::JSON.encode(identifier: '_ping', message: Time.now.to_i) end protected - # The request that initiated the websocket connection is available here. This gives access to the environment, cookies, etc. + # The request that initiated the WebSocket connection is available here. This gives access to the environment, cookies, etc. def request @request ||= begin environment = Rails.application.env_config.merge(env) if defined?(Rails.application) && Rails.application @@ -133,7 +132,7 @@ module ActionCable end end - # The cookies of the request that initiated the websocket connection. Useful for performing authorization checks. + # The cookies of the request that initiated the WebSocket connection. Useful for performing authorization checks. def cookies request.cookie_jar end @@ -144,13 +143,12 @@ module ActionCable attr_reader :subscriptions, :message_buffer def on_open - server.add_connection(self) - connect if respond_to?(:connect) subscribe_to_internal_channel beat message_buffer.process! + server.add_connection(self) rescue ActionCable::Connection::Authorization::UnauthorizedError respond_to_invalid_request close @@ -203,17 +201,17 @@ module ActionCable 'Started %s "%s"%s for %s at %s' % [ request.request_method, request.filtered_path, - websocket.possible? ? ' [Websocket]' : '', + websocket.possible? ? ' [WebSocket]' : '', request.ip, - Time.now.to_default_s ] + Time.now.to_s ] end def finished_request_message 'Finished "%s"%s for %s at %s' % [ request.filtered_path, - websocket.possible? ? ' [Websocket]' : '', + websocket.possible? ? ' [WebSocket]' : '', request.ip, - Time.now.to_default_s ] + Time.now.to_s ] end end end diff --git a/lib/action_cable/connection/identification.rb b/lib/action_cable/connection/identification.rb index 4e9beac058..431493aa70 100644 --- a/lib/action_cable/connection/identification.rb +++ b/lib/action_cable/connection/identification.rb @@ -1,3 +1,5 @@ +require 'set' + module ActionCable module Connection module Identification @@ -22,7 +24,7 @@ module ActionCable # Return a single connection identifier that combines the value of all the registered identifiers into a single gid. def connection_identifier - if @connection_identifier.blank? + unless defined? @connection_identifier @connection_identifier = connection_gid identifiers.map { |id| instance_variable_get("@#{id}") }.compact end @@ -31,7 +33,13 @@ module ActionCable private def connection_gid(ids) - ids.map { |o| (o.try(:to_global_id) || o).to_s }.sort.join(":") + ids.map do |o| + if o.respond_to? :to_global_id + o.to_global_id + else + o.to_s + end + end.sort.join(":") end end end diff --git a/lib/action_cable/connection/internal_channel.rb b/lib/action_cable/connection/internal_channel.rb index b00e21824c..c065a24ab7 100644 --- a/lib/action_cable/connection/internal_channel.rb +++ b/lib/action_cable/connection/internal_channel.rb @@ -15,14 +15,14 @@ module ActionCable @_internal_redis_subscriptions ||= [] @_internal_redis_subscriptions << [ internal_redis_channel, callback ] - pubsub.subscribe(internal_redis_channel, &callback) + EM.next_tick { pubsub.subscribe(internal_redis_channel, &callback) } logger.info "Registered connection (#{connection_identifier})" end end def unsubscribe_from_internal_channel if @_internal_redis_subscriptions.present? - @_internal_redis_subscriptions.each { |channel, callback| pubsub.unsubscribe_proc(channel, callback) } + @_internal_redis_subscriptions.each { |channel, callback| EM.next_tick { pubsub.unsubscribe_proc(channel, callback) } } end end diff --git a/lib/action_cable/connection/message_buffer.rb b/lib/action_cable/connection/message_buffer.rb index d5a8e9eba9..25cff75b41 100644 --- a/lib/action_cable/connection/message_buffer.rb +++ b/lib/action_cable/connection/message_buffer.rb @@ -1,6 +1,6 @@ module ActionCable module Connection - # Allows us to buffer messages received from the websocket before the Connection has been fully initialized and is ready to receive them. + # Allows us to buffer messages received from the WebSocket before the Connection has been fully initialized and is ready to receive them. # Entirely internal operation and should not be used directly by the user. class MessageBuffer def initialize(connection) @@ -50,4 +50,4 @@ module ActionCable end end end -end
\ No newline at end of file +end diff --git a/lib/action_cable/connection/subscriptions.rb b/lib/action_cable/connection/subscriptions.rb index 69e3f60706..229be2a316 100644 --- a/lib/action_cable/connection/subscriptions.rb +++ b/lib/action_cable/connection/subscriptions.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/hash/indifferent_access' + module ActionCable module Connection # Collection class for all the channel subscriptions established on a given connection. Responsible for routing incoming commands that arrive on diff --git a/lib/action_cable/connection/web_socket.rb b/lib/action_cable/connection/web_socket.rb index 135a28cfe4..169b683b8c 100644 --- a/lib/action_cable/connection/web_socket.rb +++ b/lib/action_cable/connection/web_socket.rb @@ -1,3 +1,5 @@ +require 'faye/websocket' + module ActionCable module Connection # Decorate the Faye::WebSocket with helpers we need. diff --git a/lib/action_cable/engine.rb b/lib/action_cable/engine.rb index 6c943c7971..613a9b99f2 100644 --- a/lib/action_cable/engine.rb +++ b/lib/action_cable/engine.rb @@ -1,4 +1,22 @@ +require 'rails/engine' +require 'active_support/ordered_options' + module ActionCable class Engine < ::Rails::Engine + config.action_cable = ActiveSupport::OrderedOptions.new + + initializer "action_cable.logger" do + ActiveSupport.on_load(:action_cable) { self.logger ||= ::Rails.logger } + end + + initializer "action_cable.set_configs" do |app| + options = app.config.action_cable + + options.allowed_request_origins ||= "http://localhost:3000" if ::Rails.env.development? + + ActiveSupport.on_load(:action_cable) do + options.each { |k,v| send("#{k}=", v) } + end + end end end diff --git a/lib/action_cable/server.rb b/lib/action_cable/server.rb index 2278509341..a2a89d5f1e 100644 --- a/lib/action_cable/server.rb +++ b/lib/action_cable/server.rb @@ -1,11 +1,19 @@ +require 'eventmachine' +EventMachine.epoll if EventMachine.epoll? +EventMachine.kqueue if EventMachine.kqueue? + module ActionCable module Server - autoload :Base, 'action_cable/server/base' - autoload :Broadcasting, 'action_cable/server/broadcasting' - autoload :Connections, 'action_cable/server/connections' - autoload :Configuration, 'action_cable/server/configuration' + extend ActiveSupport::Autoload + + eager_autoload do + autoload :Base + autoload :Broadcasting + autoload :Connections + autoload :Configuration - autoload :Worker, 'action_cable/server/worker' - autoload :ActiveRecordConnectionManagement, 'action_cable/server/worker/active_record_connection_management' + autoload :Worker + autoload :ActiveRecordConnectionManagement, 'action_cable/server/worker/active_record_connection_management' + end end end diff --git a/lib/action_cable/server/base.rb b/lib/action_cable/server/base.rb index 9315a48f20..f1585dc776 100644 --- a/lib/action_cable/server/base.rb +++ b/lib/action_cable/server/base.rb @@ -1,3 +1,5 @@ +require 'em-hiredis' + module ActionCable module Server # A singleton ActionCable::Server instance is available via ActionCable.server. It's used by the rack process that starts the cable server, but @@ -66,5 +68,7 @@ module ActionCable config.connection_class.identifiers end end + + ActiveSupport.run_load_hooks(:action_cable, Base.config) end end diff --git a/lib/action_cable/server/broadcasting.rb b/lib/action_cable/server/broadcasting.rb index 037b98951e..6e0fbae387 100644 --- a/lib/action_cable/server/broadcasting.rb +++ b/lib/action_cable/server/broadcasting.rb @@ -1,3 +1,5 @@ +require 'redis' + module ActionCable module Server # Broadcasting is how other parts of your application can send messages to the channel subscribers. As explained in Channel, most of the time, these @@ -44,9 +46,9 @@ module ActionCable def broadcast(message) server.logger.info "[ActionCable] Broadcasting to #{broadcasting}: #{message}" - server.broadcasting_redis.publish broadcasting, message.to_json + server.broadcasting_redis.publish broadcasting, ActiveSupport::JSON.encode(message) end end end end -end
\ No newline at end of file +end diff --git a/lib/action_cable/server/configuration.rb b/lib/action_cable/server/configuration.rb index 315782ec3e..b22de273b8 100644 --- a/lib/action_cable/server/configuration.rb +++ b/lib/action_cable/server/configuration.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/hash/indifferent_access' + module ActionCable module Server # An instance of this configuration object is available via ActionCable.server.config, which allows you to tweak the configuration points diff --git a/lib/action_cable/server/connections.rb b/lib/action_cable/server/connections.rb index b3d1632cf7..47dcea8c20 100644 --- a/lib/action_cable/server/connections.rb +++ b/lib/action_cable/server/connections.rb @@ -18,13 +18,13 @@ module ActionCable connections.delete connection end - # Websocket connection implementations differ on when they'll mark a connection as stale. We basically never want a connection to go stale, as you + # WebSocket connection implementations differ on when they'll mark a connection as stale. We basically never want a connection to go stale, as you # then can't rely on being able to receive and send to it. So there's a 3 second heartbeat running on all connections. If the beat fails, we automatically # disconnect. def setup_heartbeat_timer EM.next_tick do @heartbeat_timer ||= EventMachine.add_periodic_timer(BEAT_INTERVAL) do - EM.next_tick { connections.map &:beat } + EM.next_tick { connections.map(&:beat) } end end end @@ -34,4 +34,4 @@ module ActionCable end end end -end
\ No newline at end of file +end diff --git a/lib/action_cable/server/worker.rb b/lib/action_cable/server/worker.rb index 91496775b8..e063b2a2e1 100644 --- a/lib/action_cable/server/worker.rb +++ b/lib/action_cable/server/worker.rb @@ -1,3 +1,6 @@ +require 'celluloid' +require 'active_support/callbacks' + module ActionCable module Server # Worker used by Server.send_async to do connection work in threads. Only for internal use. @@ -36,4 +39,4 @@ module ActionCable end end end -end
\ No newline at end of file +end |