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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Filesystem storage implementation. |
| 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 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 2026-02-08 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Storage; |
| 21 | |
| 22 | final readonly class FilesystemStorage implements StorageInterface |
| 23 | { |
| 24 | private string $rootPath; |
| 25 | |
| 26 | public function __construct( |
| 27 | string $rootPath, |
| 28 | private ?string $publicBaseUrl = null, |
| 29 | ) { |
| 30 | $this->rootPath = rtrim(string: $rootPath, characters: '/\\'); |
| 31 | } |
| 32 | |
| 33 | public function put(string $path, string $contents): bool |
| 34 | { |
| 35 | $fullPath = $this->buildFullPath($path); |
| 36 | $directory = dirname($fullPath); |
| 37 | if ( |
| 38 | !is_dir($directory) |
| 39 | && !mkdir(directory: $directory, permissions: 0o775, recursive: true) |
| 40 | && !is_dir($directory) |
| 41 | ) { |
| 42 | throw new StorageException('Unable to create directory for storage path: ' . $directory); |
| 43 | } |
| 44 | |
| 45 | $result = file_put_contents(filename: $fullPath, data: $contents, flags: LOCK_EX); |
| 46 | if ($result === false) { |
| 47 | throw new StorageException('Unable to write file to storage path: ' . $path); |
| 48 | } |
| 49 | |
| 50 | return true; |
| 51 | } |
| 52 | |
| 53 | public function putStream(string $path, mixed $stream): bool |
| 54 | { |
| 55 | if (!is_resource($stream)) { |
| 56 | throw new StorageException('Stream must be a valid resource.'); |
| 57 | } |
| 58 | |
| 59 | $fullPath = $this->buildFullPath($path); |
| 60 | $directory = dirname($fullPath); |
| 61 | if ( |
| 62 | !is_dir($directory) |
| 63 | && !mkdir(directory: $directory, permissions: 0o775, recursive: true) |
| 64 | && !is_dir($directory) |
| 65 | ) { |
| 66 | throw new StorageException('Unable to create directory for storage path: ' . $directory); |
| 67 | } |
| 68 | |
| 69 | $target = fopen(filename: $fullPath, mode: 'wb'); |
| 70 | if ($target === false) { |
| 71 | throw new StorageException('Unable to open file for writing: ' . $path); |
| 72 | } |
| 73 | |
| 74 | try { |
| 75 | if (stream_copy_to_stream($stream, $target) === false) { |
| 76 | throw new StorageException('Unable to write stream contents: ' . $path); |
| 77 | } |
| 78 | } finally { |
| 79 | fclose($target); |
| 80 | } |
| 81 | |
| 82 | return true; |
| 83 | } |
| 84 | |
| 85 | public function get(string $path): string |
| 86 | { |
| 87 | $fullPath = $this->buildFullPath($path); |
| 88 | $contents = file_get_contents($fullPath); |
| 89 | |
| 90 | if ($contents === false) { |
| 91 | throw new StorageException('Unable to read file from storage path: ' . $path); |
| 92 | } |
| 93 | |
| 94 | return $contents; |
| 95 | } |
| 96 | |
| 97 | public function delete(string $path): bool |
| 98 | { |
| 99 | $fullPath = $this->buildFullPath($path); |
| 100 | if (!file_exists($fullPath)) { |
| 101 | return false; |
| 102 | } |
| 103 | |
| 104 | $result = unlink($fullPath); |
| 105 | if ($result === false) { |
| 106 | throw new StorageException('Unable to delete file from storage path: ' . $path); |
| 107 | } |
| 108 | |
| 109 | return true; |
| 110 | } |
| 111 | |
| 112 | public function exists(string $path): bool |
| 113 | { |
| 114 | return file_exists($this->buildFullPath($path)); |
| 115 | } |
| 116 | |
| 117 | public function url(string $path): string |
| 118 | { |
| 119 | $normalizedPath = $this->normalizePathForUrl($path); |
| 120 | if ($this->publicBaseUrl !== null && $this->publicBaseUrl !== '') { |
| 121 | return rtrim(string: $this->publicBaseUrl, characters: '/') . '/' . $normalizedPath; |
| 122 | } |
| 123 | |
| 124 | return str_replace(search: '\\', replace: '/', subject: $this->buildFullPath($path)); |
| 125 | } |
| 126 | |
| 127 | public function size(string $path): int |
| 128 | { |
| 129 | $fullPath = $this->buildFullPath($path); |
| 130 | $size = filesize($fullPath); |
| 131 | |
| 132 | if ($size === false) { |
| 133 | throw new StorageException('Unable to fetch file size for storage path: ' . $path); |
| 134 | } |
| 135 | |
| 136 | return $size; |
| 137 | } |
| 138 | |
| 139 | private function buildFullPath(string $path): string |
| 140 | { |
| 141 | return $this->rootPath . DIRECTORY_SEPARATOR . $this->normalizePath($path); |
| 142 | } |
| 143 | |
| 144 | private function normalizePathForUrl(string $path): string |
| 145 | { |
| 146 | $normalizedPath = ltrim(string: str_replace(search: '\\', replace: '/', subject: trim($path)), characters: '/'); |
| 147 | if ($normalizedPath === '') { |
| 148 | throw new StorageException('Invalid storage path.'); |
| 149 | } |
| 150 | |
| 151 | $segments = explode('/', $normalizedPath); |
| 152 | foreach ($segments as $segment) { |
| 153 | if ($segment === '..' || $segment === '') { |
| 154 | throw new StorageException('Invalid storage path.'); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | return $normalizedPath; |
| 159 | } |
| 160 | |
| 161 | private function normalizePath(string $path): string |
| 162 | { |
| 163 | return str_replace('/', DIRECTORY_SEPARATOR, $this->normalizePathForUrl($path)); |
| 164 | } |
| 165 | } |