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-rw-r--r--railties/lib/rails/application/bootstrap.rb2
-rw-r--r--railties/lib/rails/application/configuration.rb15
-rw-r--r--railties/lib/rails/application/default_middleware_stack.rb36
-rw-r--r--railties/lib/rails/application/finisher.rb6
4 files changed, 41 insertions, 18 deletions
diff --git a/railties/lib/rails/application/bootstrap.rb b/railties/lib/rails/application/bootstrap.rb
index 0f4d932749..9baf8aa742 100644
--- a/railties/lib/rails/application/bootstrap.rb
+++ b/railties/lib/rails/application/bootstrap.rb
@@ -63,7 +63,7 @@ INFO
Rails.cache = ActiveSupport::Cache.lookup_store(config.cache_store)
if Rails.cache.respond_to?(:middleware)
- config.middleware.insert_before("Rack::Runtime", Rails.cache.middleware)
+ config.middleware.insert_before(::Rack::Runtime, Rails.cache.middleware)
end
end
end
diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index 4fc7a1db62..ee9c87b5cf 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -11,12 +11,12 @@ module Rails
:eager_load, :exceptions_app, :file_watcher, :filter_parameters,
:force_ssl, :helpers_paths, :logger, :log_formatter, :log_tags,
:railties_order, :relative_url_root, :secret_key_base, :secret_token,
- :serve_static_files, :ssl_options, :static_cache_control, :static_index,
+ :serve_static_files, :ssl_options, :static_index, :public_file_server,
:session_options, :time_zone, :reload_classes_only_on_change,
:beginning_of_week, :filter_redirect, :x
attr_writer :log_level
- attr_reader :encoding, :api_only
+ attr_reader :encoding, :api_only, :static_cache_control
def initialize(*)
super
@@ -27,8 +27,8 @@ module Rails
@filter_redirect = []
@helpers_paths = []
@serve_static_files = true
- @static_cache_control = nil
@static_index = "index"
+ @public_file_server = ActiveSupport::OrderedOptions.new
@force_ssl = false
@ssl_options = {}
@session_store = :cookie_store
@@ -36,7 +36,6 @@ module Rails
@time_zone = "UTC"
@beginning_of_week = :monday
@log_level = nil
- @middleware = app_middleware
@generators = app_generators
@cache_store = [ :file_store, "#{root}/tmp/cache/" ]
@railties_order = [:all]
@@ -53,6 +52,14 @@ module Rails
@x = Custom.new
end
+ def static_cache_control=(value)
+ ActiveSupport::Deprecation.warn("static_cache_control is deprecated and will be removed in Rails 5.1. " \
+ "Please use `config.public_file_server.headers = {'Cache-Control' => #{value}} " \
+ "instead.")
+
+ @static_cache_control = value
+ end
+
def encoding=(value)
@encoding = value
silence_warnings do
diff --git a/railties/lib/rails/application/default_middleware_stack.rb b/railties/lib/rails/application/default_middleware_stack.rb
index 6f9ccec137..387d92db73 100644
--- a/railties/lib/rails/application/default_middleware_stack.rb
+++ b/railties/lib/rails/application/default_middleware_stack.rb
@@ -18,7 +18,10 @@ module Rails
middleware.use ::Rack::Sendfile, config.action_dispatch.x_sendfile_header
if config.serve_static_files
- middleware.use ::ActionDispatch::Static, paths["public"].first, config.static_cache_control, index: config.static_index
+ 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.static_index, headers: headers
end
if rack_cache = load_rack_cache
@@ -26,7 +29,27 @@ module Rails
middleware.use ::Rack::Cache, rack_cache
end
- middleware.use ::Rack::Lock unless allow_concurrency?
+ if config.allow_concurrency == false
+ # User has explicitly opted out of concurrent request
+ # handling: presumably their code is not threadsafe
+
+ middleware.use ::Rack::Lock
+
+ elsif config.allow_concurrency == :unsafe
+ # Do nothing, even if we know this is dangerous. This is the
+ # historical behaviour for true.
+
+ else
+ # Default concurrency setting: enabled, but safe
+
+ unless config.cache_classes && config.eager_load
+ # Without cache_classes + eager_load, the load interlock
+ # is required for proper operation
+
+ middleware.use ::ActionDispatch::LoadInterlock
+ end
+ end
+
middleware.use ::Rack::Runtime
middleware.use ::Rack::MethodOverride unless config.api_only
middleware.use ::ActionDispatch::RequestId
@@ -52,7 +75,6 @@ module Rails
middleware.use ::ActionDispatch::Flash
end
- middleware.use ::ActionDispatch::ParamsParser
middleware.use ::Rack::Head
middleware.use ::Rack::ConditionalGet
middleware.use ::Rack::ETag, "no-cache"
@@ -65,14 +87,6 @@ module Rails
config.reload_classes_only_on_change != true || app.reloaders.map(&:updated?).any?
end
- def allow_concurrency?
- if config.allow_concurrency.nil?
- config.cache_classes && config.eager_load
- else
- config.allow_concurrency
- end
- end
-
def load_rack_cache
rack_cache = config.action_dispatch.rack_cache
return unless rack_cache
diff --git a/railties/lib/rails/application/finisher.rb b/railties/lib/rails/application/finisher.rb
index 0599e988d9..404e3c3e23 100644
--- a/railties/lib/rails/application/finisher.rb
+++ b/railties/lib/rails/application/finisher.rb
@@ -86,8 +86,10 @@ module Rails
# added in the hook are taken into account.
initializer :set_clear_dependencies_hook, group: :all do
callback = lambda do
- ActiveSupport::DescendantsTracker.clear
- ActiveSupport::Dependencies.clear
+ ActiveSupport::Dependencies.interlock.attempt_unloading do
+ ActiveSupport::DescendantsTracker.clear
+ ActiveSupport::Dependencies.clear
+ end
end
if config.reload_classes_only_on_change