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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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- 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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Tests can (and do) access the database from the main thread. In this
case they were starting a transaction, then making a request. The
request would create a new thread, which would allocate a new database
connection. Since the main thread started a transaction that contains
data that the new thread wants to see, the new thread would not see it
due to data visibility from transactions. Spawning the new thread in
production is fine because middleware should not be doing database
manipulation similar to the test harness. Before 603fe20c it was
possible to set the database connection id based on a thread local, but
603fe20c changes the connection lookup code to never look at the
"connection id" but only at the thread object itself. Without that
indirection, we can't force threads to use the same connection pool as
another thread.
Fixes #23483
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ActionDispatch::Http::Cache::Response#etag= such that etags set in fresh_when and stale? are weak. For #17556.
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All of our tests were testing the `ActionController::Live` behavior in a
standalone environment, without going through the router or behaving
like a real application.
This resulted in `ActionController::Live` throwing the exception
`undefined method 'request' for #<ActionDispatch::Request:0x00000003ad1148>`
because `make_response!` was expecting a response instead of a request.
The expectation of a response came from `set_response!` in non-router
tests setting the response and passing it to `make_response!`. In the
case of an application we would hit `serve` in `RouteSet` first which
would send us to `make_response!` with a request sent instead of a
response.
The changes here remove `set_response!` so `make_response!` always
receives a request.
Thanks to KalabiYau for help with the investigation and solution.
Fixes #22524
[Eileen M. Uchitelle & KalabiYau]
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we want the request to go through the test harness, not directly call
the methods on the controller
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also remove req / res references
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This will silence deprecation warnings.
Most of the test can be changed from `render :text` to render `:plain`
or `render :body` right away. However, there are some tests that needed
to be fixed by hand as they actually assert the default Content-Type
returned from `render :body`.
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The concurrent-ruby gem is a toolset containing many concurrency
utilities. Many of these utilities include runtime-specific
optimizations when possible. Rather than clutter the Rails codebase with
concurrency utilities separate from the core task, such tools can be
superseded by similar tools in the more specialized gem. This commit
replaces `ActiveSupport::Concurrency::Latch` with
`Concurrent::CountDownLatch`, which is functionally equivalent.
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New default: the template digest is automatically included in your ETags.
When you call `fresh_when @post`, the digest for `posts/show.html.erb`
is mixed in so future changes to the HTML will blow HTTP caches for you.
This makes it easy to HTTP-cache many more of your actions.
If you render a different template, you can now pass the `:template`
option to include its digest instead:
fresh_when @post, template: 'widgets/show'
Pass `template: false` to skip the lookup. To turn this off entirely, set:
config.action_controller.etag_with_template_digest = false
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.. even when the producer is blocked for a write.
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update the tests, using an if-else
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avoid freezing the headers until the web server has actually read data
from the body proxy. Once the webserver has read data, then we should
throw an error if someone tries to set a header
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when streaming responses, we need to make sure the cookie jar is written
to the headers before returning up the stack. This commit introduces a
new method on the response object that writes the cookie jar to the
headers as the response is committed. The middleware and test framework
will not write the cookie headers if the response has already been
committed.
fixes #14352
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when an exception happens in an action before the response has been
committed, then we should re-raise the exception in the main thread.
This lets us reuse the existing exception handling.
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detect the type of controller we're testing and return the right type of
response based on that controller. This allows us to stop doing the
weird sleep thing.
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callback and an error happens
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if the controller action has not yet streamed any data, actions should
process as normal, and errors should trigger the appropriate behavior
(500, or in the case of ActionController::BadRequest, a 400 Bad Request)
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SSE class for ActionController::Live
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Without timeout:
this test executed infinitely on JRuby
Passes on MRI
With Timeout:
this test gracefully fails on JRuby
Passes on MRI, tested on v2.0 & v1.9.3
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Any exceptions that occured at the view or controller level for a
controller using ActionController::Live would cause the server to either
hang with an open socket indefinitely, or immediately crash (depending
on whether the server was launched with rails s or directly). Changed
the behavior of exceptions to act the same as streaming templates for
html requests, and allow for an on_error callback if needed.
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stale on live streams(issue #9636)
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will work
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responses.
Processing controller actions in a separate thread allows us to work
around the rack api - we can allow the user to set status and headers,
then block until the first bytes are written. As soon as the first
bytes are written, the main thread can return the status, headers, and
(essentially) a queue for the body.
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