rails/actionpack
Steven Petryk 5f0d089f5e Clarify passing an array as a cookie's domain
When working through an issue, I found myself a little confused stumbling upon some code like this:

```rb
cookies[...] = {
  # ...
  domain: %w(.site.io .site.com)
}
```

In my mind I was thinking "is this some weird part of the cookie spec? or is this Rails?" and the docs didn't offer much insight into how it works. Going back into the commit where that line was added, the folks who added it were confused to until someone linked to the source.

I figured that clarifying this in the docs would be useful. Of course, people should know how cookies work before fiddling with them (unlike me), but since cookies are so sensitive, I think the docs should opt for being explicit about this.

Co-Authored-By: Norm Provost <norman.provost@intercom.io>
2020-02-06 16:49:17 -08:00
..
bin Use frozen string literal in actionpack/ 2017-07-29 14:02:40 +03:00
lib Clarify passing an array as a cookie's domain 2020-02-06 16:49:17 -08:00
test Use path instead of fullpath on validating authenticity token 2020-01-23 13:08:36 -05:00
CHANGELOG.md Merge pull request #38150 from kbrock/all_trusted_ips 2020-01-03 19:00:23 -03:00
MIT-LICENSE Bump license years from 2019 to 2020 [ci skip] 2020-01-01 15:10:31 +05:30
README.rdoc Merge pull request #35559 from ashishprajapati/ashishprajapati/important_textual_improvements 2019-03-09 22:54:21 +01:00
Rakefile Load framework test files in deterministic order 2019-12-16 16:55:06 +00:00
actionpack.gemspec Fix possible information leak / session hijacking vulnerability. 2019-12-18 17:01:09 -03:00

README.rdoc

= Action Pack -- From request to response

Action Pack is a framework for handling and responding to web requests. It
provides mechanisms for *routing* (mapping request URLs to actions), defining
*controllers* that implement actions, and generating responses by rendering
*views*, which are templates of various formats. In short, Action Pack
provides the view and controller layers in the MVC paradigm.

It consists of several modules:

* Action Dispatch, which parses information about the web request, handles
  routing as defined by the user, and does advanced processing related to HTTP
  such as MIME-type negotiation, decoding parameters in POST, PATCH, or PUT bodies,
  handling HTTP caching logic, cookies and sessions.

* Action Controller, which provides a base controller class that can be
  subclassed to implement filters and actions to handle requests. The result
  of an action is typically content generated from views.

With the Ruby on Rails framework, users only directly interface with the
Action Controller module. Necessary Action Dispatch functionality is activated
by default and Action View rendering is implicitly triggered by Action
Controller. However, these modules are designed to function on their own and
can be used outside of Rails.

You can read more about Action Pack in the {Action Controller Overview}[https://guides.rubyonrails.org/action_controller_overview.html] guide.

== Download and installation

The latest version of Action Pack can be installed with RubyGems:

  $ gem install actionpack

Source code can be downloaded as part of the Rails project on GitHub:

* https://github.com/rails/rails/tree/master/actionpack


== License

Action Pack is released under the MIT license:

* https://opensource.org/licenses/MIT


== Support

API documentation is at:

* https://api.rubyonrails.org

Bug reports for the Ruby on Rails project can be filed here:

* https://github.com/rails/rails/issues

Feature requests should be discussed on the rails-core mailing list here:

* https://groups.google.com/forum/?fromgroups#!forum/rubyonrails-core