FileStorage.php
100 lines
| 1 | <?php |
| 2 | |
| 3 | namespace Analyst\Storage; |
| 4 | |
| 5 | use Analyst\Contracts\StorageContract; |
| 6 | |
| 7 | if ( ! defined( 'ABSPATH' ) ) exit; |
| 8 | |
| 9 | /** |
| 10 | * Class FileStorage |
| 11 | * |
| 12 | * Persists key-value data as individual dotname files inside wp-content. |
| 13 | * Each key maps to a file named ".analyst_{key}" in WP_CONTENT_DIR. |
| 14 | * Values are serialized and base64-encoded to safely store arbitrary data. |
| 15 | */ |
| 16 | class FileStorage implements StorageContract |
| 17 | { |
| 18 | /** |
| 19 | * Base directory for storage files. |
| 20 | * |
| 21 | * @var string |
| 22 | */ |
| 23 | protected $directory; |
| 24 | |
| 25 | public function __construct() |
| 26 | { |
| 27 | $this->directory = rtrim(WP_CONTENT_DIR, '/\\'); |
| 28 | } |
| 29 | |
| 30 | /** |
| 31 | * @param string $key |
| 32 | * @param mixed $default |
| 33 | * @return mixed |
| 34 | */ |
| 35 | public function get($key, $default = null) |
| 36 | { |
| 37 | $filePath = $this->resolveFilePath($key); |
| 38 | |
| 39 | if (!file_exists($filePath) || !is_readable($filePath)) { |
| 40 | return $default; |
| 41 | } |
| 42 | |
| 43 | $encoded = @file_get_contents($filePath); |
| 44 | |
| 45 | if ($encoded === false || $encoded === '') { |
| 46 | return $default; |
| 47 | } |
| 48 | |
| 49 | $raw = base64_decode($encoded, true); |
| 50 | |
| 51 | if ($raw === false) { |
| 52 | return $default; |
| 53 | } |
| 54 | |
| 55 | return @unserialize($raw); |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * @param string $key |
| 60 | * @param mixed $value |
| 61 | * @return bool |
| 62 | */ |
| 63 | public function put($key, $value) |
| 64 | { |
| 65 | $filePath = $this->resolveFilePath($key); |
| 66 | |
| 67 | $encoded = base64_encode(serialize($value)); |
| 68 | |
| 69 | return @file_put_contents($filePath, $encoded, LOCK_EX) !== false; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * @param string $key |
| 74 | * @return bool |
| 75 | */ |
| 76 | public function delete($key) |
| 77 | { |
| 78 | $filePath = $this->resolveFilePath($key); |
| 79 | |
| 80 | if (file_exists($filePath)) { |
| 81 | return @unlink($filePath); |
| 82 | } |
| 83 | |
| 84 | return true; |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Build the absolute file path for a given key. |
| 89 | * |
| 90 | * @param string $key |
| 91 | * @return string |
| 92 | */ |
| 93 | private function resolveFilePath($key) |
| 94 | { |
| 95 | $safeKey = preg_replace('/[^a-zA-Z0-9_\-]/', '_', $key); |
| 96 | |
| 97 | return $this->directory . '/.analyst_' . $safeKey; |
| 98 | } |
| 99 | } |
| 100 |