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8dc9511bbc
composer: * mediawiki/mediawiki-codesniffer: 36.0.0 → 37.0.0 npm: * svgo: 2.3.0 → 2.3.1 * https://npmjs.com/advisories/1754 (CVE-2021-33587) * postcss: 7.0.35 → 7.0.36 * https://npmjs.com/advisories/1693 (CVE-2021-23368) * trim-newlines: 3.0.0 → 3.0.1 * https://npmjs.com/advisories/1753 (CVE-2021-33623) * prismjs: 1.23.0 → 1.24.1 * https://npmjs.com/advisories/1762 (CVE-2021-32723) Change-Id: Ief0fe110b6746c209085502cf4639429a4116ab5
112 lines
3.2 KiB
PHP
112 lines
3.2 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @since 1.35
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*/
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namespace Vector\FeatureManagement\Requirements;
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use Vector\FeatureManagement\Requirement;
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/**
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* Some application state changes throughout the lifetime of the application, e.g. `wgSitename` or
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* `wgFullyInitialised`, which signals whether the application boot process has finished and
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* critical resources like database connections are available.
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*
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* The `DynamicStateRequirement` allows us to define requirements that lazily evaluate the
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* application state statically, e.g.
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*
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* ```lang=php
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* $featureManager->registerComplexRequirement(
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* new DynamicConfigRequirement(
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* $config,
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* 'Sitename',
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* 'Foo'
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* )
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* );
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* ```
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*
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* registers a requirement that will evaluate to true only when `mediawiki/includes/Setup.php` has
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* finished executing (after all service wiring has executed). I.e., every call to
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* `Requirement->isMet()` reinterrogates the Config object for the current state and returns it.
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* Contrast to
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*
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* ```lang=php
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* $featureManager->registerRequirement(
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* 'Foo',
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* $config->get( 'Sitename' )
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* );
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* ```
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*
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* wherein state is evaluated only once at registration time and permanently cached.
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*
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* NOTE: This API hasn't settled. It may change at any time without warning. Please don't bind to
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* it unless you absolutely need to
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*
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* @unstable
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*
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* @package Vector\FeatureManagement\Requirements
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* @internal
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*/
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final class DynamicConfigRequirement implements Requirement {
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/**
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* @var \Config
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*/
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private $config;
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/**
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* @var string
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*/
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private $configName;
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/**
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* @var string
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*/
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private $requirementName;
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/**
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* @param \Config $config
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* @param string $configName Any `Config` key. This name is used to query `$config` state. E.g.,
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* `'DBname'`. See https://www.mediawiki.org/wiki/Manual:Configuration_settings
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* @param string $requirementName The name of the requirement presented to FeatureManager.
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* This name _usually_ matches the `$configName` parameter for simplicity but allows for
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* abstraction as needed. See `Requirement->getName()`.
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*/
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public function __construct( \Config $config, string $configName, string $requirementName ) {
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$this->config = $config;
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$this->configName = $configName;
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$this->requirementName = $requirementName;
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}
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/**
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* @inheritDoc
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*/
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public function getName(): string {
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return $this->requirementName;
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}
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/**
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* @inheritDoc
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*/
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public function isMet(): bool {
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return (bool)$this->config->get( $this->configName );
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}
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}
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