module ActionCable module Server # An instance of this configuration object is available via ActionCable.server.config, which allows you to tweak the configuration points # in a Rails config initializer. class Configuration attr_accessor :logger, :log_tags attr_accessor :connection_class, :worker_pool_size attr_accessor :channel_load_paths attr_accessor :disable_request_forgery_protection, :allowed_request_origins attr_accessor :cable, :url def initialize @log_tags = [] @connection_class = ApplicationCable::Connection @worker_pool_size = 100 @channel_load_paths = [Rails.root.join('app/channels')] @disable_request_forgery_protection = false end def channel_paths @channel_paths ||= channel_load_paths.flat_map do |path| Dir["#{path}/**/*_channel.rb"] end end def channel_class_names @channel_class_names ||= channel_paths.collect do |channel_path| Pathname.new(channel_path).basename.to_s.split('.').first.camelize end end # Returns constant of subscription adapter specified in config/cable.yml. # If the adapter cannot be found, this will default to the Redis adapter. # Also makes sure proper dependencies are required. def pubsub_adapter adapter = (cable.fetch('adapter') { 'redis' }) path_to_adapter = "action_cable/subscription_adapter/#{adapter}" begin require path_to_adapter rescue Gem::LoadError => e raise Gem::LoadError, "Specified '#{adapter}' for Action Cable pubsub adapter, but the gem is not loaded. Add `gem '#{e.name}'` to your Gemfile (and ensure its version is at the minimum required by Action Cable)." rescue LoadError => e raise LoadError, "Could not load '#{path_to_adapter}'. Make sure that the adapter in config/cable.yml is valid. If you use an adapter other than 'postgresql' or 'redis' add the necessary adapter gem to the Gemfile.", e.backtrace end adapter = adapter.camelize adapter = 'PostgreSQL' if adapter == 'Postgresql' "ActionCable::SubscriptionAdapter::#{adapter}".constantize end end end end