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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This class is just a wrapper for Twig v3 |
| 5 | * |
| 6 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 7 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 8 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 9 | * |
| 10 | * @package phpMyFAQ |
| 11 | * @author Thorsten Rinne <thorsten@phpmyfaq.de> |
| 12 | * @copyright 2023-2026 phpMyFAQ Team |
| 13 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 14 | * @link https://www.phpmyfaq.de |
| 15 | * @since 2023-05-27 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Twig; |
| 21 | |
| 22 | use phpMyFAQ\Core\Exception; |
| 23 | use phpMyFAQ\Environment as phpMyFAQEnvironment; |
| 24 | use phpMyFAQ\System; |
| 25 | use phpMyFAQ\Twig\Extensions\AssetVersionTwigExtension; |
| 26 | use phpMyFAQ\Twig\Extensions\PluginTwigExtension; |
| 27 | use phpMyFAQ\Twig\Extensions\TranslateTwigExtension; |
| 28 | use Twig\Environment; |
| 29 | use Twig\Error\LoaderError; |
| 30 | use Twig\Error\RuntimeError; |
| 31 | use Twig\Error\SyntaxError; |
| 32 | use Twig\Extension\AttributeExtension; |
| 33 | use Twig\Extension\DebugExtension; |
| 34 | use Twig\Extension\ExtensionInterface; |
| 35 | use Twig\Loader\FilesystemLoader; |
| 36 | use Twig\TemplateWrapper; |
| 37 | use Twig\TwigFilter; |
| 38 | use Twig\TwigFunction; |
| 39 | |
| 40 | class TwigWrapper |
| 41 | { |
| 42 | private readonly Environment $twigEnvironment; |
| 43 | |
| 44 | /** @var string Name of an active template set. */ |
| 45 | private static string $templateSetName = 'default'; |
| 46 | |
| 47 | /** |
| 48 | * @throws LoaderError |
| 49 | */ |
| 50 | public function __construct( |
| 51 | string $templatePath, |
| 52 | private bool $isSetup = false, |
| 53 | ?string $templateSetName = null, |
| 54 | ) { |
| 55 | $resolvedTemplateSet = $this->resolveTemplateSetName($templatePath, $templateSetName); |
| 56 | self::$templateSetName = $resolvedTemplateSet; |
| 57 | |
| 58 | $filesystemLoader = new FilesystemLoader(); |
| 59 | $filesystemLoader->addPath($templatePath . '/' . $resolvedTemplateSet); |
| 60 | $filesystemLoader->addPath($templatePath . '/admin', namespace: 'admin'); |
| 61 | $filesystemLoader->addPath($templatePath . '/setup', namespace: 'setup'); |
| 62 | |
| 63 | /** @var mixed $configuredCacheDir */ |
| 64 | $configuredCacheDir = phpMyFAQEnvironment::get('TWIG_CACHE_DIR'); |
| 65 | $this->twigEnvironment = new Environment($filesystemLoader, [ |
| 66 | 'debug' => System::isDevelopmentVersion(), |
| 67 | 'cache' => TwigCacheResolver::resolve( |
| 68 | debug: System::isDevelopmentVersion() || phpMyFAQEnvironment::isDebugMode(), |
| 69 | enabled: phpMyFAQEnvironment::get('TWIG_CACHE_ENABLED'), |
| 70 | configuredDir: is_string($configuredCacheDir) ? $configuredCacheDir : null, |
| 71 | defaultDir: (string) PMF_ROOT_DIR . '/cache/twig', |
| 72 | ), |
| 73 | // Recompile when a template file changes, so self-hosted template |
| 74 | // edits are picked up without a manual cache clear. |
| 75 | 'auto_reload' => true, |
| 76 | ]); |
| 77 | |
| 78 | // Always add the translation and asset-versioning extensions |
| 79 | $this->twigEnvironment->addExtension(new AttributeExtension(TranslateTwigExtension::class)); |
| 80 | $this->twigEnvironment->addExtension(new AttributeExtension(AssetVersionTwigExtension::class)); |
| 81 | |
| 82 | // Add the plugin extension if it's not in the setup phase |
| 83 | if (!$this->isSetup) { |
| 84 | $this->twigEnvironment->addExtension(new AttributeExtension(PluginTwigExtension::class)); |
| 85 | } |
| 86 | |
| 87 | // If we're on a development version or debug is enabled, add the debug extension |
| 88 | if (System::isDevelopmentVersion() || phpMyFAQEnvironment::isDebugMode()) { |
| 89 | $this->twigEnvironment->addExtension(new DebugExtension()); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | public function setSetup(bool $isSetup): void |
| 94 | { |
| 95 | $this->isSetup = $isSetup; |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * @throws Exception |
| 100 | */ |
| 101 | public function loadTemplate(string $templateFile): TemplateWrapper |
| 102 | { |
| 103 | try { |
| 104 | return $this->twigEnvironment->load($templateFile); |
| 105 | } catch (LoaderError|RuntimeError|SyntaxError $exception) { |
| 106 | throw new Exception($exception->getMessage()); |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | public function addExtension(ExtensionInterface $extension): void |
| 111 | { |
| 112 | $this->twigEnvironment->addExtension($extension); |
| 113 | } |
| 114 | |
| 115 | public function addFunction(TwigFunction $twigFunction): void |
| 116 | { |
| 117 | $this->twigEnvironment->addFunction($twigFunction); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * @param class-string<ExtensionInterface> $class |
| 122 | */ |
| 123 | public function getExtension(string $class): ExtensionInterface |
| 124 | { |
| 125 | return $this->twigEnvironment->getExtension($class); |
| 126 | } |
| 127 | |
| 128 | public function addFilter(TwigFilter $twigFilter): void |
| 129 | { |
| 130 | $this->twigEnvironment->addFilter($twigFilter); |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Returns the name of the actual template set. |
| 135 | */ |
| 136 | public static function getTemplateSetName(): string |
| 137 | { |
| 138 | return self::$templateSetName; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Set the template set name to use. |
| 143 | */ |
| 144 | public static function setTemplateSetName(string $tplSetName = 'default'): void |
| 145 | { |
| 146 | self::$templateSetName = $tplSetName; |
| 147 | } |
| 148 | |
| 149 | private function resolveTemplateSetName(string $templatePath, ?string $templateSetName): string |
| 150 | { |
| 151 | $requestedTemplateSet = trim($templateSetName ?? self::$templateSetName); |
| 152 | if ($requestedTemplateSet === '' || !preg_match('/^[A-Za-z0-9_-]+$/', $requestedTemplateSet)) { |
| 153 | $requestedTemplateSet = 'default'; |
| 154 | } |
| 155 | |
| 156 | $requestedPath = $templatePath . '/' . $requestedTemplateSet; |
| 157 | if (is_dir($requestedPath)) { |
| 158 | return $requestedTemplateSet; |
| 159 | } |
| 160 | |
| 161 | return 'default'; |
| 162 | } |
| 163 | } |