98 lines
3.1 KiB
PHP
98 lines
3.1 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Core\Configuration;
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use Symfony\Component\DependencyInjection\Attribute\AsAlias;
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/**
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* A lightweight API class to check if a feature is enabled.
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*
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* Features are simple options (true/false), and are stored in the
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* global configuration array $TYPO3_CONF_VARS[SYS][features].
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*
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* For disabling or enabling a feature the "ConfigurationManager"
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* should be used.
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*
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* -- Naming --
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*
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* Feature names should NEVER be named "enable" or have a negation, or contain versions or years
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* "enableFeatureXyz"
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* "disableOverlays"
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* "schedulerRevamped"
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* "useDoctrineQueries"
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* "disablePreparedStatements"
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* "disableHooksInFE"
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*
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* Proper namings for features
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* "ExtendedRichtextFormat"
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* "NativeYamlParser"
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* "InlinePageTranslations"
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* "TypoScriptParserIncludesAsXml"
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* "NativeDoctrineQueries"
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*
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* Ideally, these feature switches are added via the Install Tool or via FactoryConfiguration
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* and can be used for Extensions as well.
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*
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* --- Usage ---
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*
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* if (GeneralUtility::makeInstance(Features::class)->isFeatureEnabled('InlineSvg')) {
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* ... do stuff here ...
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* }
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*/
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#[AsAlias('features', public: true)]
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readonly class Features
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{
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/**
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* A list of features that are always activated (mainly happens if a previous feature switch is now always
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* "turned on" to enforce a behaviour, but still valid for extension authors to ensure the feature switch
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* returns "enabled" for future versions.
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*/
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private const array ALWAYS_ACTIVE_FEATURES = [
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// Enabled since v15.0 at any time.
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'extbase.consistentDateTimeHandling',
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// Enabled since v13.0 at any time.
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'security.usePasswordPolicyForFrontendUsers',
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'security.backend.enforceContentSecurityPolicy',
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// Enabled since v12.0 at any time.
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'subrequestPageErrors',
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'yamlImportsFollowDeclarationOrder',
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'security.frontend.htmlSanitizeParseFuncDefault',
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'runtimeDbQuotingOfTcaConfiguration',
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// Enabled since v11.0 at any time.
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'fluidBasedPageModule',
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// Enabled since v10.0 at any time.
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'simplifiedControllerActionDispatching',
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'unifiedPageTranslationHandling',
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'felogin.extbase',
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];
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/**
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* Checks if a feature is active
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*
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* @param string $featureName the name of the feature
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*/
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public function isFeatureEnabled(string $featureName): bool
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{
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if (in_array($featureName, self::ALWAYS_ACTIVE_FEATURES, true)) {
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return true;
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}
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return isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['features'][$featureName])
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&& $GLOBALS['TYPO3_CONF_VARS']['SYS']['features'][$featureName] === true;
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}
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}
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