rails--rails/actionpack/CHANGELOG.md

• Remove deprecated fragment_cache_key helper in favor of combined_fragment_cache_key.

  Rafael Mendonça França

• Remove deprecated methods in ActionDispatch::TestResponse.

  #success?, missing? and error? were deprecated in Rails 5.2 in favor of #successful?, not_found? and server_error?.

  Rafael Mendonça França

• Ensure external redirects are explicitly allowed

  Add fallback_location and allow_other_host options to redirect_to.

  Gannon McGibbon

• Introduce ActionDispatch::HostAuthorization

  This is a new middleware that guards against DNS rebinding attacks by white-listing the allowed hosts a request can be made to.

  Each host is checked with the case operator (#===) to support RegExp, Proc, IPAddr and custom objects as host allowances.

  Genadi Samokovarov

• Allow using parsed_body in ActionController::TestCase.

  In addition to ActionDispatch::IntegrationTest, allow using parsed_body in ActionController::TestCase:

  class SomeControllerTest < ActionController::TestCase
    def test_some_action
      post :action, body: { foo: 'bar' }
      assert_equal({ "foo" => "bar" }, response.parsed_body)
    end
  end
  

  Fixes #34676.

  Tobias Bühlmann

• Raise an error on root route naming conflicts.

  Raises an ArgumentError when multiple root routes are defined in the same context instead of assigning nil names to subsequent roots.

  Gannon McGibbon

• Allow rescue from parameter parse errors:

  rescue_from ActionDispatch::Http::Parameters::ParseError do
    head :unauthorized
  end
  

  Gannon McGibbon, Josh Cheek

• Reset Capybara sessions if failed system test screenshot raising an exception.

  Reset Capybara sessions if take_failed_screenshot raise exception in system test after_teardown.

  Maxim Perepelitsa

• Use request object for context if there's no controller

  There is no controller instance when using a redirect route or a mounted rack application so pass the request object as the context when resolving dynamic CSP sources in this scenario.

  Fixes #34200.

  Andrew White

• Apply mapping to symbols returned from dynamic CSP sources

  Previously if a dynamic source returned a symbol such as :self it would be converted to a string implicity, e.g:

  policy.default_src -> { :self }
  

  would generate the header:

  Content-Security-Policy: default-src self
  

  and now it generates:

  Content-Security-Policy: default-src 'self'
  

  Andrew White

• Add ActionController::Parameters#each_value.

  Lukáš Zapletal

• Deprecate ActionDispatch::Http::ParameterFilter in favor of ActiveSupport::ParameterFilter.

  Yoshiyuki Kinjo

• Encode Content-Disposition filenames on send_data and send_file. Previously, send_data 'data', filename: "\u{3042}.txt" sends "filename=\"\u{3042}.txt\"" as Content-Disposition and it can be garbled. Now it follows RFC 2231 and RFC 5987 and sends "filename=\"%3F.txt\"; filename*=UTF-8''%E3%81%82.txt". Most browsers can find filename correctly and old browsers fallback to ASCII converted name.

  Fumiaki Matsushima

• Expose ActionController::Parameters#each_key which allows iterating over keys without allocating an array.

  Richard Schneeman

• Purpose metadata for signed/encrypted cookies.

  Rails can now thwart attacks that attempt to copy signed/encrypted value of a cookie and use it as the value of another cookie.

  It does so by stashing the cookie-name in the purpose field which is then signed/encrypted along with the cookie value. Then, on a server-side read, we verify the cookie-names and discard any attacked cookies.

  Enable action_dispatch.use_cookies_with_metadata to use this feature, which writes cookies with the new purpose and expiry metadata embedded.

  Assain Jaleel

• Raises ActionController::RespondToMismatchError with confliciting respond_to invocations.

  respond_to can match multiple types and lead to undefined behavior when multiple invocations are made and the types do not match:

  respond_to do |outer_type|
    outer_type.js do
      respond_to do |inner_type|
        inner_type.html { render body: "HTML" }
      end
    end
  end
  

  Patrick Toomey

• ActionDispatch::Http::UploadedFile now delegates to_path to its tempfile.

  This allows uploaded file objects to be passed directly to File.read without raising a TypeError:

  uploaded_file = ActionDispatch::Http::UploadedFile.new(tempfile: tmp_file)
  File.read(uploaded_file)
  

  Aaron Kromer

• Pass along arguments to underlying get method in follow_redirect!.

  Now all arguments passed to follow_redirect! are passed to the underlying get method. This for example allows to set custom headers for the redirection request to the server.

  follow_redirect!(params: { foo: :bar })
  

  Remo Fritzsche

• Introduce a new error page to when the implicit render page is accessed in the browser.

  Now instead of showing an error page that with exception and backtraces we now show only one informative page.

  Vinicius Stock

• Introduce ActionDispatch::DebugExceptions.register_interceptor.

  Exception aware plugin authors can use the newly introduced .register_interceptor method to get the processed exception, instead of monkey patching DebugExceptions.

  ActionDispatch::DebugExceptions.register_interceptor do |request, exception|
    HypoteticalPlugin.capture_exception(request, exception)
  end
  

  Genadi Samokovarov

• Output only one Content-Security-Policy nonce header value per request.

  Fixes #32597.

  Andrey Novikov, Andrew White

• Move default headers configuration into their own module that can be included in controllers.

  Kevin Deisz

• Add method dig to session.

  claudiob, Takumi Shotoku

• Controller level force_ssl has been deprecated in favor of config.force_ssl.

  Derek Prior

• Rails 6 requires Ruby 2.5.0 or newer.

  Jeremy Daer, Kasper Timm Hansen

Please check 5-2-stable for previous changes.