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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Node; |
| 6 | |
| 7 | use Celema\Core\Exception\HttpBadRequest; |
| 8 | use Cosray\Config; |
| 9 | |
| 10 | /** |
| 11 | * URL prefixes that the router or the web server answers before the node |
| 12 | * catchall. A node path at or below one of them would never be reachable, |
| 13 | * so it is refused when saved instead of silently shadowed. |
| 14 | */ |
| 15 | final readonly class ReservedPaths |
| 16 | { |
| 17 | /** @var list<string> */ |
| 18 | private array $prefixes; |
| 19 | |
| 20 | /** @param list<string> $prefixes */ |
| 21 | public function __construct(array $prefixes = []) |
| 22 | { |
| 23 | $normalized = []; |
| 24 | |
| 25 | foreach ($prefixes as $prefix) { |
| 26 | $prefix = '/' . trim($prefix, '/'); |
| 27 | |
| 28 | // The root prefix would reserve every path; it is not a mount. |
| 29 | if ($prefix !== '/') { |
| 30 | $normalized[] = $prefix; |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | $this->prefixes = array_values(array_unique($normalized)); |
| 35 | } |
| 36 | |
| 37 | public static function fromConfig(Config $config): self |
| 38 | { |
| 39 | return new self(array_values(array_filter([ |
| 40 | $config->panel->path, |
| 41 | $config->api->path, |
| 42 | $config->path->assets, |
| 43 | $config->path->cache, |
| 44 | '/preview', |
| 45 | ]))); |
| 46 | } |
| 47 | |
| 48 | /** The reserved prefix the path falls under, if any. */ |
| 49 | public function match(string $path): ?string |
| 50 | { |
| 51 | $path = '/' . ltrim($path, '/'); |
| 52 | |
| 53 | foreach ($this->prefixes as $prefix) { |
| 54 | if ($path === $prefix || str_starts_with($path, $prefix . '/')) { |
| 55 | return $prefix; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | return null; |
| 60 | } |
| 61 | |
| 62 | /** @param array<array-key, mixed> $paths */ |
| 63 | public function assertFree(array $paths): void |
| 64 | { |
| 65 | foreach ($paths as $path) { |
| 66 | if (!is_string($path) || trim($path) === '') { |
| 67 | continue; |
| 68 | } |
| 69 | |
| 70 | if ($this->match(trim($path)) !== null) { |
| 71 | throw new HttpBadRequest(payload: [ |
| 72 | 'message' => __('node:reserved-path', ['path' => '/' . ltrim(trim($path), '/')]), |
| 73 | ]); |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | } |