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path: root/actionpack/lib/action_dispatch/http/cache.rb
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* Reduce Array allocationsAkira Matsuda2019-07-311-2/+2
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* Enable `Layout/EmptyLinesAroundAccessModifier` copRyuta Kamizono2019-06-131-1/+0
| | | | | | | | | | | We sometimes say "✂️ newline after `private`" in a code review (e.g. https://github.com/rails/rails/pull/18546#discussion_r23188776, https://github.com/rails/rails/pull/34832#discussion_r244847195). Now `Layout/EmptyLinesAroundAccessModifier` cop have new enforced style `EnforcedStyle: only_before` (https://github.com/rubocop-hq/rubocop/pull/7059). That cop and enforced style will reduce the our code review cost.
* Allow using combine the Cache-Control `public` and `no-cache` headersyuuji.yaginuma2019-01-071-4/+6
| | | | | | | | | | | | | | | | | Since #30367, if `no-cache` includes Cache-Control headers, special keys like `public`, `must-revalidate` are ignored. But in my understanding, `public` still need in case of want to cache authenticated pages. The authenticated pages to be cacheable, but still authenticated for every user, need to specify the `Cache-Control: public, no-cache`. For keys other than `public`, I did not know the case where it was necessary to use it in combination with `no-cache`, so I fixed that can be used only for `public`. Ref: https://www.mnot.net/cache_docs/#CACHE-CONTROL Fixes #34780.
* Add `Style/RedundantFreeze` to remove redudant `.freeze`Yasuo Honda2018-09-291-9/+9
| | | | | | | | | | | | | | | | | | | | | Since Rails 6.0 will support Ruby 2.4.1 or higher `# frozen_string_literal: true` magic comment is enough to make string object frozen. This magic comment is enabled by `Style/FrozenStringLiteralComment` cop. * Exclude these files not to auto correct false positive `Regexp#freeze` - 'actionpack/lib/action_dispatch/journey/router/utils.rb' - 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb' It has been fixed by https://github.com/rubocop-hq/rubocop/pull/6333 Once the newer version of RuboCop released and available at Code Climate these exclude entries should be removed. * Replace `String#freeze` with `String#-@` manually if explicit frozen string objects are required - 'actionpack/test/controller/test_case_test.rb' - 'activemodel/test/cases/type/string_test.rb' - 'activesupport/lib/active_support/core_ext/string/strip.rb' - 'activesupport/test/core_ext/string_ext_test.rb' - 'railties/test/generators/actions_test.rb'
* Add support for more HTTP cache controlsDaniel Schierbeck2018-06-131-1/+5
| | | | | | | | | | | | | | | | | | 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.
* Introduced `ActiveSupport::Digest` that allows to specify hash function ↵Dmitri Dolguikh2017-12-121-1/+1
| | | | | | | | implementation and defaults to `Digest::MD5`. Replaced calls to `::Digest::MD5.hexdigest` with calls to `ActiveSupport::Digest.hexdigest`.
* Merge pull request #30367 from ptoomey3/consistent-cache-control-headersAaron Patterson2017-09-051-8/+12
|\ | | | | Normalize/process Cache-Control headers consistently
| * Don't touch an unused headerPatrick Toomey2017-08-231-1/+0
| | | | | | | | | | | | The prior logic explictly set `Cache-Control` to `nil`. But, we would only reach that logic if the header was not set to begin with. So, rather than give it any value at all, just leave it alone.
| * Decouple the merge/normalization and conditional cache control logicPatrick Toomey2017-08-231-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The prior logic was trying to do too many things at once. For all responses, we want to perform two distinct steps: * Merge/normalize the `Cache-Control` values found in HTTP headers and those found in the `@cache_control` hash. * Conditionally set a default `Cache-Control` header value when we have an ETag This change separates these concerns since the merge/normalize step should occur for all responses, but the second should only occur when we have already set an ETag/last modified value. Normally ETag middleware will set a default `Cache-Control`, but only if an existing ETag is not already set. So, in the cases where an ETag is set, we need to set the default `Cache-Control` value ourselves.
| * This constant is no longer usedPatrick Toomey2017-08-221-1/+0
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| * Let middleware handle default cache behaviorPatrick Toomey2017-08-221-1/+2
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| * Normalize/process Cach-Control headers consistentlyPatrick Toomey2017-08-221-3/+1
| | | | | | | | | | | | | | | | | | | | In the existing logic, the `Cache-Control` header may or may not get normalized by additional logic depending on whether `response.cache_conrol` has been modified. This leads to inconsistent behavior, since sometimes `Cache-Control` can contain whatever a user sets and sometimes it gets normalized, based on the logic inside of `set_conditional_cache_control!`. It seems like this normalization process should happen regardless to ensure consistent behavior.
* | Use tt in doc for ActionPack [ci skip]Yoshiyuki Hirano2017-08-261-1/+1
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* Use frozen string literal in actionpack/Kir Shatrov2017-07-291-0/+2
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* Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"Matthew Draper2017-07-021-1/+0
| | | | | This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
* Enforce frozen string in RubocopKir Shatrov2017-07-011-0/+1
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* applies remaining conventions across the projectXavier Noria2016-08-061-1/+0
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* applies new string literal convention in actionpack/libXavier Noria2016-08-061-9/+9
| | | | | The current code base is not uniform. After some discussion, we have chosen to go with double quotes by default.
* Strong ETag validatorsJeremy Daer2016-03-311-15/+49
| | | | | | | | | | | | | | | | | | * Introduce `Response#strong_etag=` and `#weak_etag=` and analogous options for `fresh_when` and `stale?`. `Response#etag=` sets a weak ETag. Strong ETags are desirable when you're serving byte-for-byte identical responses that support Range requests, like PDFs or videos (typically done by reproxying the response from a backend storage service). Also desirable when fronted by some CDNs that support strong ETags only, like Akamai. * No longer strips quotes (`"`) from ETag values before comparing them. Quotes are significant, part of the ETag. A quoted ETag and an unquoted one are not the same entity. * Support `If-None-Match: *`. Rarely useful for GET requests; meant to provide some optimistic concurrency control for PUT requests.
* Add documentation for #17573Jon Moss2016-02-011-0/+8
| | | | | | Fixes some parts of #23148. [ci skip]
* Response etags to always be weak: Prefixed W/ to value returned by ↵abhishek2016-01-201-1/+1
| | | | ActionDispatch::Http::Cache::Response#etag= such that etags set in fresh_when and stale? are weak. For #17556.
* Commit before freezing the headersMatthew Draper2016-01-121-1/+1
| | | | | This shouldn't generally come up: under a standard flow, we don't start sending until after the commit. But application code always finds a way.
* use methods for accessing the cache control headersAaron Patterson2015-10-061-6/+5
| | | | | Use the methods rack provides so we don't have to worry about the exact header key.
* etag header is in Rack, so use it's response methodsAaron Patterson2015-10-061-6/+2
| | | | | Rack implements the Etag header manipulation methods, so we can use those instead of ours.
* Introduce `Headers#add`. Move `Response#add_header` upstream.Jeremy Daer2015-10-031-2/+2
| | | | | | | * Introduce `ActionDispatch::Http::Headers#add` to add a value to a multivalued header. * Move `Response#add_header` upstream: https://github.com/rack/rack/pull/957 * Match upstream `Response#have_header?` -> `#has_header?` name change.
* Remove not used requiresMarcin Olichwirowicz2015-09-011-1/+0
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* remove dependency on `@cache_control` ivarAaron Patterson2015-08-271-6/+6
| | | | | eventually we'll remove this instance variable, but this is the first step
* remove `@etag` ivarAaron Patterson2015-08-271-5/+7
| | | | | we're storing the value in the headers hash, so lets just store the value in one place.
* use the abstract API in modulesAaron Patterson2015-08-271-13/+14
| | | | | Modules should be using the API that the abstract modules use so that we can move these modules between implementations
* fewer calls to `env`Aaron Patterson2015-08-241-2/+2
| | | | We don't want to directly access the env hash
* remove `header=` on the response object.Aaron Patterson2015-06-151-4/+4
| | | | | | People should be free to mutate the header object, but not to set a new header object. That header object may be specific to the webserver, and we need to hide it's internals.
* Extract `Date` header to string constant in Http Response, similar to other ↵Vipul A M2015-01-141-3/+4
| | | | headers
* Change Http::Cache::SPECIAL_KEYS from Array to SetMindaugas Mozūras2014-06-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Slightly improves performance, for example, a simple benchmark: ```ruby require 'benchmark/ips' require 'set' SPECIAL_KEYS = %w[extras no-cache max-age public must-revalidate] SPECIAL_KEYS_SET = Set.new(SPECIAL_KEYS) directive = 'must-revalidate' Benchmark.ips do |x| x.report('array') { SPECIAL_KEYS.include?(directive) } x.report('set') { SPECIAL_KEYS_SET.include?(directive) } end ``` Output: ``` ------------------------------------- array 67926 i/100ms set 74054 i/100ms ------------------------------------- array 2318423.4 (±2.8%) i/s - 11615346 in 5.014899s set 3387981.8 (±4.7%) i/s - 16958366 in 5.019355s ```
* drop an unused hash; change slang to SPECIALVipul A M2013-03-191-2/+2
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* Check if etag exists before to do the gsubRafael Mendonça França2012-09-151-2/+4
| | | | This fix the build http://travis-ci.org/#!/rails/rails/builds/2459981
* fix the buildSteve Klabnik2012-09-151-0/+1
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* Support for multiple etags in an If-None-Match headerTravis Warlick2012-09-151-1/+7
| | | | | | | | This is a rebased version of #2520. Conflicts: actionpack/test/dispatch/request_test.rb
* load active_support/core_ext/object/blank in active_support/railsXavier Noria2012-08-021-1/+0
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* Refactor ActionDispatch::Http::Cache::Response#cache_control_headers.Cainã Costa2012-07-301-11/+19
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* Ensure that cache-control headers are mergedJames Tucker2012-06-181-10/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | There are several aspects to this commit, that don't well fit into broken down commits, so they are detailed here: * When a user uses response.headers['Cache-Control'] = some_value, then the documented convention in ConditionalGet is not adhered to, in this case, response.cache_control is ignored due to `return if self[CACHE_CONTROL].present?` * When a middleware sets cache-control headers that would clobber, they're converted to symbols directly, without underscores. This would lead to bugs. * Items that would live in :extras if set through expires_in, are placed directly in the @cache_control hash, and not respected in many cases (somewhat adhering to the aforementioned documentation). * Although quite useless, any directive named 'extras' would be ignored. The general convention applied is that expires_* take precedence, but no longer overwrite everything and expires_* are ALWAYS applied, even if the header is set. I am still unhappy about the contents of this commit, and the code in general. Ideally it should be refactored to no longer use :extras. I'd likely recommend expanding @cache_control into a class, and giving it the power to handle the merge in a more efficient fashion. Such a commit would be a larger change that could have additional semantic changes for other libraries unless they utilize expires_in in very standard ways.
* Merge pull request #3479 from arvida/ensure-date-header-on-expires-inJosé Valim2012-02-181-0/+14
|\ | | | | Ensure Date header on expires_in
| * Added accessor methods for Date headerarvida2011-10-311-0/+14
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* | Use freezed string constant. Some string literals is used repeatedly.kennyj2011-12-081-15/+27
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* Fix previous commit by allowing a proc to be given as response_body. This is ↵José Valim2011-05-101-14/+12
| | | | deprecated and is going to be removed in future releases.
* removing more unused variablesAaron Patterson2011-01-171-1/+1
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* Change def to attr_reader + aliasKrekoten' Marjan2010-10-181-10/+3
| | | | Signed-off-by: José Valim <jose.valim@gmail.com>
* Move ETag and ConditionalGet logic from AD::Response to the middleware stack.José Valim2010-10-031-21/+1
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* no need to assign if we are gonna returnXavier Noria2010-08-121-2/+2
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* ETag: use body instead of @body since the method will always return a stringJeremy Kemper2010-06-281-2/+2
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* adds missing requires for Object#blank? and Object#present?Xavier Noria2010-03-281-0/+2
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