rails/CHANGELOG.md at 943bb6d7acb7ab1c9a6ac32ddad604c52356748e

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Response etags to always be weak: Prefixes 'W/' to value returned by ActionDispatch::Http::Cache::Response#etag=, such that etags set in fresh_when and stale? are weak.

Fixes #17556.

Abhishek Yadav
Provide the name of HTTP Status code in assertions.

Sean Collins
More explicit error message when running rake routes. CONTROLLER argument can now be supplied in different ways: Rails::WelcomeController, Rails::Welcome, rails/welcome.

Fixes #22918.

Edouard Chin
Allow ActionController::Parameters instances as an argument to URL helper methods. An ArgumentError will be raised if the passed parameters are not secure.

Fixes #22832.

Prathamesh Sonpatki
Add option for per-form CSRF tokens.

Greg Ose & Ben Toews
Add tests and documentation for ActionController::Renderers::use_renderers.

Benjamin Fleischer
Fix ActionController::Parameters#convert_parameters_to_hashes to return filtered or unfiltered values based on from where it is called, to_h or to_unsafe_h respectively.

Fixes #22841.

Prathamesh Sonpatki
Add ActionController::Parameters#include?

Justin Coyne

Rails 5.0.0.beta1 (December 18, 2015)

Deprecate redirect_to :back in favor of redirect_back, which accepts a required fallback_location argument, thus eliminating the possibility of a RedirectBackError.

Derek Prior
Add redirect_back method to ActionController::Redirecting to provide a way to safely redirect to the HTTP_REFERER if it is present, falling back to a provided redirect otherwise.

Derek Prior
ActionController::TestCase will be moved to it's own gem in Rails 5.1

With the speed improvements made to ActionDispatch::IntegrationTest we no longer need to keep two separate code bases for testing controllers. In Rails 5.1 ActionController::TestCase will be deprecated and moved into a gem outside of Rails source.

This is a documentation deprecation so that going forward so new tests will use ActionDispatch::IntegrationTest instead of ActionController::TestCase.

Eileen M. Uchitelle
Add a response_format option to ActionDispatch::DebugExceptions to configure the format of the response when errors occur in development mode.

If response_format is :default the debug info will be rendered in an HTML page. In the other hand, if the provided value is :api the debug info will be rendered in the original response format.

Jorge Bejar
Change the protect_from_forgery prepend default to false.

Per this comment https://github.com/rails/rails/pull/18334#issuecomment-69234050 we want protect_from_forgery to default to prepend: false.

protect_from_forgery will now be inserted into the callback chain at the point it is called in your application. This is useful for cases where you want to protect_from_forgery after you perform required authentication callbacks or other callbacks that are required to run after forgery protection.

If you want protect_from_forgery callbacks to always run first, regardless of position they are called in your application then you can add prepend: true to your protect_from_forgery call.

Example:
```
protect_from_forgery prepend: true
```
Eileen M. Uchitelle
In url_for, never append a question mark to the URL when the query string is empty anyway. (It used to do that when called like url_for(controller: 'x', action: 'y', q: {}).)

Paul Grayson
Catch invalid UTF-8 querystring values and respond with BadRequest

Check querystring params for invalid UTF-8 characters, and raise an ActionController::BadRequest error if present. Previously these strings would typically trigger errors further down the stack.

Grey Baker
Parse RSS/ATOM responses as XML, not HTML.

Alexander Kaupanin
Show helpful message in BadRequest exceptions due to invalid path parameter encodings.

Fixes #21923.

Agis Anastasopoulos
Add the ability of returning arbitrary headers to ActionDispatch::Static.

Now ActionDispatch::Static can accept HTTP headers so that developers will have control of returning arbitrary headers like 'Access-Control-Allow-Origin' when a response is delivered. They can be configured with #config:

Example:
```
config.public_file_server.headers = {
  "Cache-Control"               => "public, max-age=60",
  "Access-Control-Allow-Origin" => "http://rubyonrails.org"
}
```
Yuki Nishijima

Allow multiple root routes in same scope level. Example:

Example:

root 'blog#show', constraints: ->(req) { Hostname.blog_site?(req.host) }
root 'landing#show'

Rafael Sales

Fix regression in mounted engine named routes generation for app deployed to a subdirectory. relative_url_root was prepended to the path twice (e.g. "/subdir/subdir/engine_path" instead of "/subdir/engine_path")

Fixes #20920. Fixes #21459.

Matthew Erhard
ActionDispatch::Response#new no longer applies default headers. If you want default headers applied to the response object, then call ActionDispatch::Response.create. This change only impacts people who are directly constructing an ActionDispatch::Response object.
Accessing mime types via constants like Mime::HTML is deprecated. Please change code like this:

Mime::HTML

To this:

Mime[:html]

This change is so that Rails will not manage a list of constants, and fixes an issue where if a type isn't registered you could possibly get the wrong object.

Mime[:html] is available in older versions of Rails, too, so you can safely change libraries and plugins and maintain compatibility with multiple versions of Rails.
url_for does not modify its arguments when generating polymorphic URLs.

Bernerd Schaefer
Make it easier to opt in to config.force_ssl and config.ssl_options by making them less dangerous to try and easier to disable.

SSL redirect:
- Move :host and :port options within redirect: { … }. Deprecate.
- Introduce :status and :body to customize the redirect response. The 301 permanent default makes it difficult to test the redirect and back out of it since browsers remember the 301. Test with a 302 or 307 instead, then switch to 301 once you're confident that all is well.
HTTP Strict Transport Security (HSTS):
- Shorter max-age. Shorten the default max-age from 1 year to 180 days, the low end for https://www.ssllabs.com/ssltest/ grading and greater than the 18-week minimum to qualify for browser preload lists.
- Disabling HSTS. Setting hsts: false now sets hsts { expires: 0 } instead of omitting the header. Omitting does nothing to disable HSTS since browsers hang on to your previous settings until they expire. Sending { hsts: { expires: 0 }} flushes out old browser settings and actually disables HSTS: http://tools.ietf.org/html/rfc6797#section-6.1.1
- HSTS Preload. Introduce preload: true to set the preload flag, indicating that your site may be included in browser preload lists, including Chrome, Firefox, Safari, IE11, and Edge. Submit your site: https://hstspreload.appspot.com
Jeremy Daer
Update ActionController::TestSession#fetch to behave more like ActionDispatch::Request::Session#fetch when using non-string keys.

Jeremy Friesen
Using strings or symbols for middleware class names is deprecated. Convert things like this:

middleware.use "Foo::Bar"

to this:

middleware.use Foo::Bar
ActionController::TestSession now accepts a default value as well as a block for generating a default value based off the key provided.

This fixes calls to session#fetch in ApplicationController instances that take more two arguments or a block from raising ArgumentError: wrong number of arguments (2 for 1) when performing controller tests.

Matthew Gerrior
Fix ActionController::Parameters#fetch overwriting KeyError returned by default block.

Jonas Schuber Erlandsson, Roque Pinel
ActionController::Parameters no longer inherits from HashWithIndifferentAccess

Inheriting from HashWithIndifferentAccess allowed users to call any enumerable methods on Parameters object, resulting in a risk of losing the permitted? status or even getting back a pure Hash object instead of a Parameters object with proper sanitization.

By not inheriting from HashWithIndifferentAccess, we are able to make sure that all methods that are defined in Parameters object will return a proper Parameters object with a correct permitted? flag.

Prem Sichanugrist
Replaced ActiveSupport::Concurrency::Latch with Concurrent::CountDownLatch from the concurrent-ruby gem.

Jerry D'Antonio

Add ability to filter parameters based on parent keys.

# matches {credit_card: {code: "xxxx"}}
# doesn't match {file: { code: "xxxx"}}
config.filter_parameters += [ "credit_card.code" ]

See #13897.

Guillaume Malette

Deprecate passing first parameter as Hash and default status code for head method.

Mehmet Emin İNAÇ
AddsRack::Utils::ParameterTypeError and Rack::Utils::InvalidParameterError to the rescue_responses hash in ExceptionWrapper (Rack recommends integrators serve 400s for both of these).

Grey Baker
Add support for API only apps. ActionController::API is added as a replacement of ActionController::Base for this kind of applications.

Santiago Pastorino, Jorge Bejar
Remove assigns and assert_template. Both methods have been extracted into a gem at https://github.com/rails/rails-controller-testing.

See #18950.

Alan Guo Xiang Tan
FileHandler and Static middleware initializers accept index argument to configure the directory index file name. Defaults to index (as in index.html).

See #20017.

Eliot Sykes
Deprecate :nothing option for render method.

Mehmet Emin İNAÇ
Fix rake routes not showing the right format when nesting multiple routes.

See #18373.

Ravil Bayramgalin

Add ability to override default form builder for a controller.

class AdminController < ApplicationController
  default_form_builder AdminFormBuilder
end

Kevin McPhillips

For actions with no corresponding templates, render head :no_content instead of raising an error. This allows for slimmer API controller methods that simply work, without needing further instructions.

See #19036.

Stephen Bussey

Provide friendlier access to request variants.

request.variant = :phone
request.variant.phone?  # true
request.variant.tablet? # false

request.variant = [:phone, :tablet]
request.variant.phone?                  # true
request.variant.desktop?                # false
request.variant.any?(:phone, :desktop)  # true
request.variant.any?(:desktop, :watch)  # false

George Claghorn

Fix regression where a gzip file response would have a Content-type, even when it was a 304 status code.

See #19271.

Kohei Suzuki
Fix handling of empty X_FORWARDED_HOST header in raw_host_with_port.

Previously, an empty X_FORWARDED_HOST header would cause Actiondispatch::Http:URL.raw_host_with_port to return nil, causing Actiondispatch::Http:URL.host to raise a NoMethodError.

Adam Forsyth
Allow Bearer as token-keyword in Authorization-Header.

Additionally to Token, the keyword Bearer is acceptable as a keyword for the auth-token. The Bearer keyword is described in the original OAuth RFC and used in libraries like Angular-JWT.

See #19094.

Peter Schröder
Drop request class from RouteSet constructor.

If you would like to use a custom request class, please subclass and implement the request_class method.

tenderlove@ruby-lang.org
Fallback to ENV['RAILS_RELATIVE_URL_ROOT'] in url_for.

Fixed an issue where the RAILS_RELATIVE_URL_ROOT environment variable is not prepended to the path when url_for is called. If SCRIPT_NAME (used by Rack) is set, it takes precedence.

Fixes #5122.

Yasyf Mohamedali
Partitioning of routes is now done when the routes are being drawn. This helps to decrease the time spent filtering the routes during the first request.

Guo Xiang Tan
Fix regression in functional tests. Responses should have default headers assigned.

See #18423.

Jeremy Kemper, Yves Senn
Deprecate AbstractController#skip_action_callback in favor of individual skip_callback methods (which can be made to raise an error if no callback was removed).

Iain Beeston
Alias the ActionDispatch::Request#uuid method to ActionDispatch::Request#request_id. Due to implementation, config.log_tags = [:request_id] also works in substitute for config.log_tags = [:uuid].

David Ilizarov
Change filter on /rails/info/routes to use an actual path regexp from rails and not approximate javascript version. Oniguruma supports much more extensive list of features than javascript regexp engine.

Fixes #18402.

Ravil Bayramgalin
Non-string authenticity tokens do not raise NoMethodError when decoding the masked token.

Ville Lautanala
Add http_cache_forever to Action Controller, so we can cache a response that never gets expired.

arthurnn
ActionController#translate supports symbols as shortcuts. When a shortcut is given it also performs the lookup without the action name.

Max Melentiev

Expand ActionController::ConditionalGet#fresh_when and stale? to also accept a collection of records as the first argument, so that the following code can be written in a shorter form.

# Before
def index
  @articles = Article.all
  fresh_when(etag: @articles, last_modified: @articles.maximum(:updated_at))
end

# After
def index
  @articles = Article.all
  fresh_when(@articles)
end

claudiob

Explicitly ignored wildcard verbs when searching for HEAD routes before fallback

Fixes an issue where a mounted rack app at root would intercept the HEAD request causing an incorrect behavior during the fall back to GET requests.

Example:
```
draw do
    get '/home' => 'test#index'
    mount rack_app, at: '/'
end
head '/home'
assert_response :success
```
In this case, a HEAD request runs through the routes the first time and fails to match anything. Then, it runs through the list with the fallback and matches get '/home'. The original behavior would match the rack app in the first pass.

Terence Sun
Migrating xhr methods to keyword arguments syntax in ActionController::TestCase and ActionDispatch::Integration

Old syntax:
```
xhr :get, :create, params: { id: 1 }
```
New syntax example:
```
get :create, params: { id: 1 }, xhr: true
```
Kir Shatrov
Migrating to keyword arguments syntax in ActionController::TestCase and ActionDispatch::Integration HTTP request methods.

Example:
```
post :create, params: { y: x }, session: { a: 'b' }
get :view, params: { id: 1 }
get :view, params: { id: 1 }, format: :json
```
Kir Shatrov
Preserve default url options when generating URLs.

Fixes an issue that would cause default_url_options to be lost when generating URLs with fewer positional arguments than parameters in the route definition.

Tekin Suleyman
Deprecate *_via_redirect integration test methods.

Use follow_redirect! manually after the request call for the same behavior.

Aditya Kapoor
Add ActionController::Renderer to render arbitrary templates outside controller actions.

Its functionality is accessible through class methods render and renderer of ActionController::Base.

Ravil Bayramgalin
Support :assigns option when rendering with controllers/mailers.

Ravil Bayramgalin
Default headers, removed in controller actions, are no longer reapplied on the test response.

Jonas Baumann
Deprecate all *_filter callbacks in favor of *_action callbacks.

Rafael Mendonça França

Allow you to pass prepend: false to protect_from_forgery to have the verification callback appended instead of prepended to the chain. This allows you to let the verification step depend on prior callbacks.

Example:

class ApplicationController < ActionController::Base
  before_action :authenticate
  protect_from_forgery prepend: false, unless: -> { @authenticated_by.oauth? }

  private
    def authenticate
      if oauth_request?
        # authenticate with oauth
        @authenticated_by = 'oauth'.inquiry
      else
        # authenticate with cookies
        @authenticated_by = 'cookie'.inquiry
      end
    end
end

Josef Šimánek

Remove ActionController::HideActions.

Ravil Bayramgalin
Remove respond_to/respond_with placeholder methods, this functionality has been extracted to the responders gem.

Carlos Antonio da Silva
Remove deprecated assertion files.

Rafael Mendonça França
Remove deprecated usage of string keys in URL helpers.

Rafael Mendonça França
Remove deprecated only_path option on *_path helpers.

Rafael Mendonça França
Remove deprecated NamedRouteCollection#helpers.

Rafael Mendonça França
Remove deprecated support to define routes with :to option that doesn't contain #.

Rafael Mendonça França
Remove deprecated ActionDispatch::Response#to_ary.

Rafael Mendonça França
Remove deprecated ActionDispatch::Request#deep_munge.

Rafael Mendonça França
Remove deprecated ActionDispatch::Http::Parameters#symbolized_path_parameters.

Rafael Mendonça França
Remove deprecated option use_route in controller tests.

Rafael Mendonça França
Ensure append_info_to_payload is called even if an exception is raised.

Fixes an issue where when an exception is raised in the request the additional payload data is not available.

See #14903.

Dieter Komendera, Margus Pärt
Correctly rely on the response's status code to handle calls to head.

Robin Dupret
Using head method returns empty response_body instead of returning a single space " ".

The old behavior was added as a workaround for a bug in an early version of Safari, where the HTTP headers are not returned correctly if the response body has a 0-length. This is been fixed since and the workaround is no longer necessary.

Fixes #18253.

Prathamesh Sonpatki
Fix how polymorphic routes works with objects that implement to_model.

Travis Grathwell
Stop converting empty arrays in params to nil.

This behavior was introduced in response to CVE-2012-2660, CVE-2012-2694 and CVE-2013-0155

ActiveRecord now issues a safe query when passing an empty array into a where clause, so there is no longer a need to defend against this type of input (any nils are still stripped from the array).

Chris Sinjakli
Fixed usage of optional scopes in url helpers.

Alex Robbin
Fixed handling of positional url helper arguments when format: false.

Fixes #17819.

Andrew White, Tatiana Soukiassian

Please check 4-2-stable for previous changes.

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Rails 5.0.0.beta1 (December 18, 2015)

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