Class: Rails::Application::DefaultMiddlewareStack

Inherits:
Object
  • Object
show all
Defined in:
lib/rails/application/default_middleware_stack.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, config, paths) ⇒ DefaultMiddlewareStack

Returns a new instance of DefaultMiddlewareStack.


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# File 'lib/rails/application/default_middleware_stack.rb', line 6

def initialize(app, config, paths)
  @app = app
  @config = config
  @paths = paths
end

Instance Attribute Details

#appObject (readonly)

Returns the value of attribute app


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# File 'lib/rails/application/default_middleware_stack.rb', line 4

def app
  @app
end

#configObject (readonly)

Returns the value of attribute config


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# File 'lib/rails/application/default_middleware_stack.rb', line 4

def config
  @config
end

#pathsObject (readonly)

Returns the value of attribute paths


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# File 'lib/rails/application/default_middleware_stack.rb', line 4

def paths
  @paths
end

Instance Method Details

#build_stackObject


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# File 'lib/rails/application/default_middleware_stack.rb', line 12

def build_stack
  ActionDispatch::MiddlewareStack.new.tap do |middleware|
    if config.force_ssl
      middleware.use ::ActionDispatch::SSL, config.ssl_options
    end

    middleware.use ::Rack::Sendfile, config.action_dispatch.x_sendfile_header

    if config.public_file_server.enabled
      headers = config.public_file_server.headers || {}
      headers['Cache-Control'.freeze] = config.static_cache_control if config.static_cache_control

      middleware.use ::ActionDispatch::Static, paths["public"].first, index: config.public_file_server.index_name, headers: headers
    end

    if rack_cache = load_rack_cache
      require "action_dispatch/http/rack_cache"
      middleware.use ::Rack::Cache, rack_cache
    end

    if config.allow_concurrency == false
      # User has explicitly opted out of concurrent request
      # handling: presumably their code is not threadsafe

      middleware.use ::Rack::Lock
    end

    middleware.use ::ActionDispatch::Executor, app.executor

    middleware.use ::Rack::Runtime
    middleware.use ::Rack::MethodOverride unless config.api_only
    middleware.use ::ActionDispatch::RequestId

    # Must come after Rack::MethodOverride to properly log overridden methods
    middleware.use ::Rails::Rack::Logger, config.log_tags
    middleware.use ::ActionDispatch::ShowExceptions, show_exceptions_app
    middleware.use ::ActionDispatch::DebugExceptions, app, config.debug_exception_response_format
    middleware.use ::ActionDispatch::RemoteIp, config.action_dispatch.ip_spoofing_check, config.action_dispatch.trusted_proxies

    unless config.cache_classes
      middleware.use ::ActionDispatch::Reloader, app.reloader
    end

    middleware.use ::ActionDispatch::Callbacks
    middleware.use ::ActionDispatch::Cookies unless config.api_only

    if !config.api_only && config.session_store
      if config.force_ssl && config.ssl_options.fetch(:secure_cookies, true) && !config.session_options.key?(:secure)
        config.session_options[:secure] = true
      end
      middleware.use config.session_store, config.session_options
      middleware.use ::ActionDispatch::Flash
    end

    middleware.use ::Rack::Head
    middleware.use ::Rack::ConditionalGet
    middleware.use ::Rack::ETag, "no-cache"
  end
end