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<?php |
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namespace Bdelespierre\HasUuid; |
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use Bdelespierre\HasUuid\Contracts\UuidGenerator; |
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use Bdelespierre\HasUuid\Contracts\UuidValidator; |
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use Illuminate\Support\Facades\Config; |
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use Illuminate\Support\Str; |
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use Webpatser\Uuid\Uuid; |
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class UuidService implements UuidGenerator, UuidValidator |
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{ |
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/** |
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* @var string |
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*/ |
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public static $defaultNamespace; |
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public function generate(int $version, ?string $node = null, ?string $namespace = null): string |
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{ |
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return Uuid::generate($version, $node, $namespace); |
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} |
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public static function getDefaultNamespace(): string |
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{ |
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if (static::$defaultNamespace) { |
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return static::$defaultNamespace; |
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} |
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// when no explicit namespace is provided, |
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// the namespace is calculated from the |
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// app key. |
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$key = Config::get('app.key'); |
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$key = Str::startsWith($key, 'base64:') |
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? self::hash($key) |
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: self::strToHex($key); |
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// Webpatser/UUID needs 16 bytes for namespace |
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// which is *slightly* unsafe because Laravel |
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// generates 32 bytes keys... |
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return substr($key, 32); |
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} |
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public function validate(string $uuid): bool |
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{ |
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return Uuid::validate($uuid); |
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} |
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protected static function hash(string $key): string |
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{ |
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return bin2hex(base64_decode(Str::after($key, 'base64:'))); |
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} |
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protected static function strToHex(string $string): string |
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{ |
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for ($i = 0, $hex = ''; $i < strlen($string); $i++) { |
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$hex .= substr('0' . dechex(ord($string[$i])), -2); |
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} |
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return strtoupper($hex); |
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} |
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} |
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