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Default content type for `head` is `text/html`
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Otherwise Mime::NullType will be returned as the `Content-Type` header.
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Raises exception when respond_to called multiple times in incompatible way
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Nesting respond_to calls can lead to unexpected behavior, so it should be
avoided. Currently, the first respond_to format match sets the content-type
for the resulting response. But, if a nested respond_to occurs, it is possible
to match on a different format. For example:
respond_to do |outer_type|
outer_type.js do
respond_to do |inner_type|
inner_type.html { render body: "HTML" }
end
end
end
Browsers will often include */* in their Accept headers. In the above example,
such a request would result in the outer_type.js match setting the content-
type of the response to text/javascript, while the inner_type.html match will
cause the actual response to return "HTML".
This change tries to minimize potential breakage by only raising an exception
if the nested respond_to calls are in conflict with each other. So, something
like the following example would not raise an exception:
respond_to do |outer_type|
outer_type.js do
respond_to do |inner_type|
inner_type.js { render body: "JS" }
end
end
end
While the above is nested, it doesn't affect the content-type of the response.
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In cases where the MatchData object is not used, this provides a speed-up:
https://github.com/JuanitoFatas/fast-ruby/#stringmatch-vs-stringmatch-vs-stringstart_withstringend_with-code-start-code-end
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Turn on performance based cops
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Use attr_reader/attr_writer instead of methods
method is 12% slower
Use flat_map over map.flatten(1)
flatten is 66% slower
Use hash[]= instead of hash.merge! with single arguments
merge! is 166% slower
See https://github.com/rails/rails/pull/32337 for more conversation
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albertoalmagro/albertoalmagro/prefer-rails-command-over-bin-rails
Prefer rails command over bin/rails
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As discussed in #33203 rails command already looks for, and runs,
bin/rails if it is present.
We were mixing recommendations within guides and USAGE guidelines,
in some files we recommended using rails, in others bin/rails and
in some cases we even had both options mixed together.
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http links will be redirected to the https version, but still better to
just directly link to the https version.
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Complete renderer documentation
Fixes #28484
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* Add implicit to path conversion to uploaded file
Ruby has a few implicit conversion protocols (e.g. `to_hash`, `to_str`,
`to_path`, etc.). These are considered implicit conversion protocols
because in certain instances Ruby (MRI core objects) will check if an
argument responds to the appropriate protocol and automatically convert
it when it does; this is why you can provide a `Pathname` instance into
`File.read` without having to explicitly call `to_s`.
```ruby
a_file_path = 'some/path/file.ext'
File.write a_file_path, 'String Path Content'
File.read a_file_path
a_pathname = Pathname(a_file_path)
File.write core_file, 'Pathname Content'
File.read a_file_path
core_file = File.new(a_pathname)
File.write core_file, 'File Content'
File.read core_file
tmp_file = Tempfile.new('example')
File.write tmp_file, 'Tempfile Content'
File.read tmp_file
```
So how does an uploaded file work in such cases?
```ruby
tmp_file = Tempfile.new('example')
File.write tmp_file, 'Uploaded Content'
uploaded_file = ActionDispatch::Http::UploadedFile.new(tempfile: tmp_file)
File.read uploaded_file
```
It fails with a `TypeError`:
no implicit conversion of ActionDispatch::Http::UploadedFile into String
In order to make an uploaded file work it must be explicitly converted
to a file path using `path`.
```ruby
File.read uploaded_file.path
```
This requires any code that expects path/file like objects to either
special case an uploaded file, re-implement the path conversion protocol
to use `path`, or forces the developer to explicitly cast uploaded files
to paths. This last option can sometimes be difficult to do when such
calls are deep within the inner workings of libraries.
Since an uploaded file already has a path it makes sense to implement
the implicit "path" conversion protocol (just like `File` and
`Tempfile`). This change allows uploaded file content to be treated more
closely to regular file content, without requiring any special case
handling or explicit conversion for common file utilities.
* Note uploaded file path delegation in CHANGELOG
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[ci skip]
Follow up #33401, 5491f8115711d8b34d52f8ba5e52ba39a49b08fe.
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Show nested exceptions on the debug view
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Follow up to 9f152a606
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azbshiri/actionpack/prevent-request-encoder-to-parse-nil-params
Prevent `RequestEncoder#encode_params` to parse falsey params
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When a `get` method called with `as: :json` and `params: nil` or
`params: false` (explicitly or implicitly)
`RequestEncoder#encode_params` converts it into a `null` or `false`
value which includes a unexpected `null=` or `false` query string into
request URL. From now on `RequestEncoder#encode_params` checks whether
`params` is nil or not otherwise returns.
Move down `nil` conversion guard
Update CHANGELOG.md
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e4e1b62 broke `to_param` handling:
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- There was an issue inside controller tests where order params were not respected, the reason
was because we were calling `Hash#to_query` which sorts the results lexicographically.
1e4e1b62 fixed that issue by not using `to_query` but instead a utility function provided by rack.
- However with the fix came another issue where it's now no longer possible to do this
```
post :foo, params: { user: User.first }
# Prior to the patch the controller will receive { "user" => "1" }
# Whereas now you get { "user": "#<User: ...>" }
```
The fix in this PR is to modify `Hash#to_query` to sort only when it
doesn't contain an array structure that looks something like "bar[]"
Ref https://github.com/rails/rails/pull/33341#issuecomment-404039396
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We sometimes ask "✂️ extra blank lines" to a contributor in reviews like
https://github.com/rails/rails/pull/33337#discussion_r201509738.
It is preferable to deal automatically without depending on manpower.
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* Allow get arguments for 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.
This is especially useful for setting headers that may, outside of the
testing environment, be set automatically on every request, i.e. by a
web application firewall.
* Allow get arguments for follow_redirect
[Remo Fritzsche + Rafael Mendonça França]
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Fix route eager loading
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* Convert hashes into parameters
Ensure `ActionController::Parameters#transform_values` and
`ActionController::Parameters#transform_values!` converts hashes into
parameters.
* fixup! Convert hashes into parameters
[Rafael Mendonça França + Kevin Sjöberg]
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From <https://tools.ietf.org/html/rfc5861>:
> The stale-if-error HTTP Cache-Control extension allows a cache to
> return a stale response when an error -- e.g., a 500 Internal Server
> Error, a network segment, or DNS failure -- is encountered, rather
> than returning a "hard" error. This improves availability.
>
> The stale-while-revalidate HTTP Cache-Control extension allows a
> cache to immediately return a stale response while it revalidates it
> in the background, thereby hiding latency (both in the network and on
> the server) from clients.
These are useful, fully standardized parts of the HTTP protocol with
widespread support among CDN vendors. Supporting them will make it
easier to utilize reverse proxies and CDNs from Rails.
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Rails no longer generates this file, but Google is still packed with results
suggesting it should exist, so that the doc still pointed me to it threw me
off (had I deleted it or something?). Probably be better to be vague and
prompt the user to stick it in a config file they own.
#33124
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Modifies the routes simulator to allow for empty RouteSets, which are
created when secondary Engines are loaded.
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`to_query` sorts parameters before encoding them. This causes a round
tripping issue as noted here:
https://github.com/rails/rails/issues/23997#issuecomment-328297933
https://github.com/rails/rails/issues/10529#issuecomment-328298109
https://github.com/rails/rails/pull/30558
Unfortunately, that method is being used to generate cache keys, so its
results need to be stable:
https://github.com/rails/rails/commit/10dec0e65e1f4d87f411b4361045eba86b121be9
However, the test harness is only using `to_query` to encode parameters
before sending them to the controller so the "cache key" usecase doesn't
apply here.
This commit adds a test that demonstrates the round trip problems and
changes the serialization strategy to use Rack for encoding the
parameters rather than `to_query`.
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Introduced in rails/journey@a806beb
[ci skip]
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Benchmark:
```ruby
require 'benchmark'
require 'benchmark/ips'
require 'securerandom'
def xor_byte_strings(s1, s2) # :doc:
s2_bytes = s2.bytes
s1.each_byte.with_index { |c1, i| s2_bytes[i] ^= c1 }
s2_bytes.pack("C*")
end
def xor_byte_strings_new(s1, s2) # :doc:
s2 = s2.dup
size = s1.bytesize
i = 0
while i < size
s2.setbyte(i, s1.getbyte(i) ^ s2.getbyte(i))
i += 1
end
s2
end
s1 = SecureRandom.random_bytes(32)
s2 = SecureRandom.random_bytes(32)
Benchmark.ips do |x|
x.report("current"){xor_byte_strings(s1, s2)}
x.report("new"){xor_byte_strings_new(s1, s2)}
x.compare!
end
100000.times do |i|
s3 = SecureRandom.random_bytes(32)
s4 = SecureRandom.random_bytes(32)
raise unless xor_byte_strings(s3, s4) == xor_byte_strings_new(s3, s4)
end
```
Results on ruby 2.5.1:
```
Warming up --------------------------------------
current 6.519k i/100ms
new 10.508k i/100ms
Calculating -------------------------------------
current 84.723k (_ 0.4%) i/s - 423.735k in 5.001456s
new 145.871k (_ 0.3%) i/s - 735.560k in 5.042606s
Comparison:
new: 145870.6 i/s
current: 84723.4 i/s - 1.72x slower
```
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Make it clear that the return value is converted to an
instance of ActionController::Parameters if possible
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Updates documentation on ActionDispatch::Integration::Session#process
[ci skip]
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Adds missing information on 2 parameters: +xhr+ and +as+
[ci skip]
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Specification: https://w3c.github.io/webappsec-csp/#directive-prefetch-src
This directive can already be used as an experimental feature in Chrome.
Ref: https://bugs.chromium.org/p/chromium/issues/detail?id=801561
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Reset CONTENT_LENGTH between test requests
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If a POST request is followed by a GET request in a controller test, the
`rack.input` and `RAW_POST_DATA` headers from the first request will be
reset but the `CONTENT_LENGTH` header will leak, leading the request
object in the second request to incorrectly believe it has a body.
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The example code is meant to be a string.
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Use strict_encode64 instead of gsub newline for ScreenshotHelper
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Since other views use the `h2` tag, should also use `h2` on
`missing_exact_template.html.erb`.
https://github.com/rails/rails/blob/76acaf6eb9ef3635e4c6f2ca9dba34edb50f541d/actionpack/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb#L5
https://github.com/rails/rails/blob/76acaf6eb9ef3635e4c6f2ca9dba34edb50f541d/actionpack/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb#L11
https://github.com/rails/rails/blob/76acaf6eb9ef3635e4c6f2ca9dba34edb50f541d/actionpack/lib/action_dispatch/middleware/templates/rescues/unknown_action.html.erb#L5
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Rubocop 0.54
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`RAW_POST_DATA` is derived from the `rack.input` header, which changes
with each test request. It needs to be cleared in `scrub_env!`, or all
requests within the same test will see the value from the first request.
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Create MissingExactTemplate exception with separate template
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Fix typos related to ActionDispatch::Http::FilterParameters
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