Matthias Andreas Benkard | 12a5735 | 2021-12-28 18:02:04 +0100 | [diff] [blame^] | 1 | <?php |
| 2 | |
| 3 | /* |
| 4 | * This file is part of Twig. |
| 5 | * |
| 6 | * (c) Fabien Potencier |
| 7 | * |
| 8 | * For the full copyright and license information, please view the LICENSE |
| 9 | * file that was distributed with this source code. |
| 10 | */ |
| 11 | |
| 12 | namespace Twig\Cache; |
| 13 | |
| 14 | /** |
| 15 | * Implements a cache on the filesystem. |
| 16 | * |
| 17 | * @author Andrew Tch <andrew@noop.lv> |
| 18 | */ |
| 19 | class FilesystemCache implements CacheInterface |
| 20 | { |
| 21 | public const FORCE_BYTECODE_INVALIDATION = 1; |
| 22 | |
| 23 | private $directory; |
| 24 | private $options; |
| 25 | |
| 26 | public function __construct(string $directory, int $options = 0) |
| 27 | { |
| 28 | $this->directory = rtrim($directory, '\/').'/'; |
| 29 | $this->options = $options; |
| 30 | } |
| 31 | |
| 32 | public function generateKey(string $name, string $className): string |
| 33 | { |
| 34 | $hash = hash('sha256', $className); |
| 35 | |
| 36 | return $this->directory.$hash[0].$hash[1].'/'.$hash.'.php'; |
| 37 | } |
| 38 | |
| 39 | public function load(string $key): void |
| 40 | { |
| 41 | if (is_file($key)) { |
| 42 | @include_once $key; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | public function write(string $key, string $content): void |
| 47 | { |
| 48 | $dir = \dirname($key); |
| 49 | if (!is_dir($dir)) { |
| 50 | if (false === @mkdir($dir, 0777, true)) { |
| 51 | clearstatcache(true, $dir); |
| 52 | if (!is_dir($dir)) { |
| 53 | throw new \RuntimeException(sprintf('Unable to create the cache directory (%s).', $dir)); |
| 54 | } |
| 55 | } |
| 56 | } elseif (!is_writable($dir)) { |
| 57 | throw new \RuntimeException(sprintf('Unable to write in the cache directory (%s).', $dir)); |
| 58 | } |
| 59 | |
| 60 | $tmpFile = tempnam($dir, basename($key)); |
| 61 | if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $key)) { |
| 62 | @chmod($key, 0666 & ~umask()); |
| 63 | |
| 64 | if (self::FORCE_BYTECODE_INVALIDATION == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) { |
| 65 | // Compile cached file into bytecode cache |
| 66 | if (\function_exists('opcache_invalidate') && filter_var(ini_get('opcache.enable'), \FILTER_VALIDATE_BOOLEAN)) { |
| 67 | @opcache_invalidate($key, true); |
| 68 | } elseif (\function_exists('apc_compile_file')) { |
| 69 | apc_compile_file($key); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | return; |
| 74 | } |
| 75 | |
| 76 | throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $key)); |
| 77 | } |
| 78 | |
| 79 | public function getTimestamp(string $key): int |
| 80 | { |
| 81 | if (!is_file($key)) { |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | return (int) @filemtime($key); |
| 86 | } |
| 87 | } |