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# frozen_string_literal: true
module ActionCable
module Server
# An instance of this configuration object is available via ActionCable.server.config, which allows you to tweak Action Cable configuration
# in a Rails config initializer.
class Configuration
attr_accessor :logger, :log_tags
attr_accessor :connection_class, :worker_pool_size
attr_accessor :disable_request_forgery_protection, :allowed_request_origins, :allow_same_origin_as_host
attr_accessor :cable, :url, :mount_path
def initialize
@log_tags = []
@connection_class = -> { ActionCable::Connection::Base }
@worker_pool_size = 4
@disable_request_forgery_protection = false
@allow_same_origin_as_host = true
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
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