Class: ActionCable::Server::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/action_cable/server/configuration.rb

Overview

# Action Cable Server Configuration

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.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Configuration

Returns a new instance of Configuration.



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# File 'lib/action_cable/server/configuration.rb', line 22

def initialize
  @log_tags = []

  @connection_class = -> { ActionCable::Connection::Base }
  @worker_pool_size = 4

  @disable_request_forgery_protection = false
  @allow_same_origin_as_host = true
  @filter_parameters = []

  @health_check_application = ->(env) {
    [200, { Rack::CONTENT_TYPE => "text/html", "date" => Time.now.httpdate }, []]
  }
end

Instance Attribute Details

#allow_same_origin_as_host ⇒ Object

Returns the value of attribute allow_same_origin_as_host.



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# File 'lib/action_cable/server/configuration.rb', line 17

def allow_same_origin_as_host
  @allow_same_origin_as_host
end

#allowed_request_origins ⇒ Object

Returns the value of attribute allowed_request_origins.



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# File 'lib/action_cable/server/configuration.rb', line 17

def allowed_request_origins
  @allowed_request_origins
end

#cable ⇒ Object

Returns the value of attribute cable.



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# File 'lib/action_cable/server/configuration.rb', line 18

def cable
  @cable
end

#connection_class ⇒ Object

Returns the value of attribute connection_class.



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# File 'lib/action_cable/server/configuration.rb', line 16

def connection_class
  @connection_class
end

#disable_request_forgery_protection ⇒ Object

Returns the value of attribute disable_request_forgery_protection.



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# File 'lib/action_cable/server/configuration.rb', line 17

def disable_request_forgery_protection
  @disable_request_forgery_protection
end

#filter_parameters ⇒ Object

Returns the value of attribute filter_parameters.



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# File 'lib/action_cable/server/configuration.rb', line 17

def filter_parameters
  @filter_parameters
end

#health_check_application ⇒ Object

Returns the value of attribute health_check_application.



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# File 'lib/action_cable/server/configuration.rb', line 20

def health_check_application
  @health_check_application
end

#health_check_path ⇒ Object

Returns the value of attribute health_check_path.



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# File 'lib/action_cable/server/configuration.rb', line 20

def health_check_path
  @health_check_path
end

#log_tags ⇒ Object

Returns the value of attribute log_tags.



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# File 'lib/action_cable/server/configuration.rb', line 15

def log_tags
  @log_tags
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/action_cable/server/configuration.rb', line 15

def logger
  @logger
end

#mount_path ⇒ Object

Returns the value of attribute mount_path.



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# File 'lib/action_cable/server/configuration.rb', line 18

def mount_path
  @mount_path
end

#precompile_assets ⇒ Object

Returns the value of attribute precompile_assets.



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# File 'lib/action_cable/server/configuration.rb', line 19

def precompile_assets
  @precompile_assets
end

#url ⇒ Object

Returns the value of attribute url.



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# File 'lib/action_cable/server/configuration.rb', line 18

def url
  @url
end

#worker_pool_size ⇒ Object

Returns the value of attribute worker_pool_size.



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# File 'lib/action_cable/server/configuration.rb', line 16

def worker_pool_size
  @worker_pool_size
end

Instance Method Details

#pubsub_adapter ⇒ Object

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.



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# File 'lib/action_cable/server/configuration.rb', line 40

def pubsub_adapter
  adapter = (cable.fetch("adapter") { "redis" })

  # Require the adapter itself and give useful feedback about
  #     1. Missing adapter gems and
  #     2. Adapter gems' missing dependencies.
  path_to_adapter = "action_cable/subscription_adapter/#{adapter}"
  begin
    require path_to_adapter
  rescue LoadError => e
    # We couldn't require the adapter itself. Raise an exception that points out
    # config typos and missing gems.
    if e.path == path_to_adapter
      # We can assume that a non-builtin adapter was specified, so it's either
      # misspelled or missing from Gemfile.
      raise e.class, "Could not load the '#{adapter}' Action Cable pubsub adapter. Ensure that the adapter is spelled correctly in config/cable.yml and that you've added the necessary adapter gem to your Gemfile.", e.backtrace

    # Bubbled up from the adapter require. Prefix the exception message with some
    # guidance about how to address it and reraise.
    else
      raise e.class, "Error loading the '#{adapter}' Action Cable pubsub adapter. Missing a gem it depends on? #{e.message}", e.backtrace
    end
  end

  adapter = adapter.camelize
  adapter = "PostgreSQL" if adapter == "Postgresql"
  "ActionCable::SubscriptionAdapter::#{adapter}".constantize
end