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The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.
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Looked odd, so completely detached from the other necessary part of
the implementation.
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The coder that Psych passes in has a `tag` method we can use to detect
which serialization format we're reviving for. Use it and make it clearer
alongside the `load_tags` fiddling.
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If we were to serialize an `ActionController::Parameters` on Psych 2.0.8, we'd get:
```yaml
--- !ruby/hash:ActionController::Parameters
key: :value
```
Because 2.0.8 didn't store instance variables, while 2.0.9 did:
https://github.com/tenderlove/psych/commit/8f84ad0fc711a82a1040def861cb121e8985fd4c
That, coupled with 2.0.8 calling `new` instead of `allocate` meant parameters was
deserialized just fine:
https://github.com/tenderlove/psych/commit/af308f8307899cb9e1c0fffea4bce3110a1c3926
However, if users have 2.0.8 serialized parameters, then upgrade to Psych 2.0.9+ and
Rails 5, it would start to blow up because `initialize` will never be called, and thus
`@parameters` will never be assigned. Hello, `NoMethodErrors` on `NilClass`! :)
To fix this we register another variant of the previous serialization format and take
it into account in `init_with`.
I've tested this in our app and previously raising code now deserializes like a champ.
I'm unsure how to test this in our suite because we use Psych 2.0.8 and don't know how
to make us use 2.0.9+ for just one test.
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By changing ActionController::Parameter's superclass, Rails 5 also changed
the YAML serialization format.
Since YAML doesn't know how to handle parameters it would fallback to its
routine for the superclass, which in Rails 4.2 was Hash while just Object
in Rails 5. As evident in the tags YAML would spit out:
4.2: !ruby/hash-with-ivars:ActionController::Parameters
5.0: !ruby/object:ActionController::Parameters
Thus when loading parameters YAML from 4.2 in Rails 5, it would parse a
hash dump as it would an Object class.
To fix this we have to provide our own `init_with` to be aware of the past
format as well as the new one. Then we add a `load_tags` mapping, such that
when the YAML parser sees `!ruby/hash-with-ivars:ActionController::Parameters`,
it knows to call our `init_with` function and not try to instantiate it as
a normal hash subclass.
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Before this change, posted parameters would leak across requests. The included
test case failed like so:
1) Failure:
TestCaseTest#test_multiple_mixed_method_process_should_scrub_rack_input:
--- expected
+++ actual
@@ -1 +1 @@
-{"bar"=>"an bar", "controller"=>"test_case_test/test", "action"=>"test_params"}
+{"foo"=>"an foo", "bar"=>"an bar", "controller"=>"test_case_test/test", "action"=>"test_params"}
An argument could be made that this situation isn't encountered often and that
one should limit the number of requests per test case, but I still think the
parameter leaking is an unexpected side-effect.
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`#initialize_copy` to manually duplicate the underlying parameters hash
It looks like `ActionController::Parameters#dup` is leftover from when the class inherited from `Hash`. We can just trust `#dup`, which already copies the `@permitted` instance variable (confirmed by tests). We still define a `#initialize_copy` to make `@parameters` a copy that can be mutated without affecting the original instance.
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When `ActionController::Parameters` is duplicated with `#dup`, it doesn't create a duplicate of the instance variables (e.g. `@parameters`) but rather maintains the reference (see <http://ruby-doc.org/core-2.3.1/Object.html>). Given that the parameters object is often manipulated as if it were a hash (e.g. with `#delete` and similar methods), this leads to unexpected behaviour, like the following:
```
params = ActionController::Parameters.new(foo: "bar")
duplicated_params = params.dup
duplicated_params.delete(:foo)
params == duplicated_params
```
This fixes the bug by defining a private `#initialize_copy` method, used internally by `#dup`, which makes a copy of `@parameters`.
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Signed-off-by: Jeremy Daer <jeremydaer@gmail.com>
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In the docs: "+permit_all_parameters+ - If it's +true+, all the parameters will
be permitted by default. The default is +false+."
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The changes in this commit are twofold:
1. The examples showing `#require` accepting two arguments were wrong - you
have to wrap the arguments (two, or more) in an array.
2. `ActionController::Parameters` has an `#inspect` method now (since
https://github.com/rails/rails/pull/23732), and the documentation should
reflect that.
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Add a missing capital letter and avoid using absolute links to the
API because they may refer to out-dated documentation on the Edge
site.
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This example code wasn't getting wrapped in a `<code>` tag due to incorrect indentation.
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CSRF verification for non-XHR GET requests (cross-origin `<script>`
tags) didn't check this flag before logging failures.
Setting `config.action_controller.log_warning_on_csrf_failure = false`
now disables logging for these CSRF failures as well.
Closes #25086.
Signed-off-by: Jeremy Daer <jeremydaer@gmail.com>
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Follows the same pattern as controllers and jobs. Exceptions raised in
delivery jobs (enqueued by `#deliver_later`) are also delegated to the
mailer's rescue_from handlers, so you can handle the DeserializationError
raised by delivery jobs:
```ruby
class MyMailer < ApplicationMailer
rescue_from ActiveJob::DeserializationError do
…
end
```
ActiveSupport::Rescuable polish:
* Add the `rescue_with_handler` class method so exceptions may be
handled at the class level without requiring an instance.
* Rationalize `exception.cause` handling. If no handler matches the
exception, fall back to the handler that matches its cause.
* Handle exceptions raised elsewhere. Pass `object: …` to execute
the `rescue_from` handler (e.g. a method call or a block to
instance_exec) against a different object. Defaults to `self`.
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rthbound/dont-call-each-when-calling-body-on-response
Dont call each when calling body on response to fix #23964
Fixes #23964
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- Adds #each_chunk to ActionDispatch::Response. it's a method which
will be called by ActionDispatch::Response#each.
- Make Response#each a proper method instead of delegating to @stream
- In Live, instead of overriding #each, override #each_chunk.
- `#each` should just spit out @str_body if it's already set
- Adds #test_set_header_after_read_body_during_action
to prove this fixes #23964
- Adds #test_each_isnt_called_if_str_body_is_written to
ensure #each_chunk is not called when @str_body is available
- Call `@response.sent!` in AC::TestCase's #perform so a test response
acts a bit more like a real response. Makes test that call `#assert_stream_closed`
pass again.
- Additionally assert `#committed?` in `#assert_stream_closed`
- Make test that was calling @response.stream.each pass again by
calling @response.each instead.
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It is a common pattern in the Rails community that when people want to
:xa
use any kind of helper that is defined inside app/helpers they includes
the helper module inside the controller like:
module UserHelper
def my_user_helper
# ...
end
end
class UsersController < ApplicationController
include UserHelper
def index
render inline: my_user_helper
end
end
This has problem because the helper can't access anything that is
defined in the view level context class.
Also all public methods of the helper become available in the controller
what can lead to undesirable methods being routed and behaving as
actions.
Also if you helper depends on other helpers or even Action View helpers
you need to include each one of these dependencies in your controller
otherwise your helper is not going to work.
We already have a helpers proxy at controller class level but that proxy
doesn't have access to the instance variables defined in the
controller.
With this new instance level helper proxy users can reuse helpers in the
controller without having to include the modules and with access to
instance variables defined in the controller.
class UsersController < ApplicationController
def index
render inline: helpers.my_user_helper
end
end
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There were a lot of protected instance variables in
AbsctractController::Rendering that were related to Action Controller
and Action View.
Moving to ActionController::Base's protected instance list we make it
closer to where they are really defined.
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[ci skip]
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Fix actionpack typos [ci skip]
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Fix actionpack typos [ci skip]
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Discart the schema and host information when building the per-form token
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When the token is generated by the form we were using the schema and
host information while only using the path to compare if the action was
the same. This was causing the token to be invalid.
To fix this we use the same information to generate the token and check
it.
Fix #24257
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Actionpack documentation typos [ci skip]
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Actioncable and Actionpack documentation typos [ci skip]
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Previously, users were trying to modify a frozen Hash. Includes a
regression test :)
Fixes #22975
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Add missing period after sentence.
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This brings the behavior more inline with other similar cases, such as
receiving a hash when an array of scalars was expected. Prior to this
commit, the key would be present, but the value would be `nil`
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Encourage best practice in the HTTP Token authentication example code
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`authenticate` method, to use the `secure_compare` method with two constant-length strings. This defends against timing attacks, and is best practice. Using `==` for sensitive actions is not recommended, and this was the source of a CVE fixed in October 2015: https://github.com/rails/rails/commit/17e6f1507b7f2c2a883c180f4f9548445d6dfbda
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- we are ending sentences properly
- fixing of space issues
- fixed continuity issues in some sentences.
Reverts https://github.com/rails/rails/commit/8fc97d198ef31c1d7a4b9b849b96fc08a667fb02 .
This change reverts making sure we add '.' at end of deprecation sentences.
This is to keep sentences within Rails itself consistent and with a '.' at the end.
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In particular, the fact that ApplicationController is the only
one inheriting from AC::API is not a default. You could say at
most that generators generate them that way, but the creation
of controllers is something which is out of our control because
programmers write controllers by hand.
Instead, we can say that normally, conventionally, as in the
majority of Rails apps, that is the actually the case.
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- skip calling helper_method if it's not there: if we don't have helpers, we needn't define one.
- tests that an api controller can include and use ActionController::Cookies
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- Added missing `"`.
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[ci-skip]
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