Primo Committ

vendor/ramsey/uuid/src/Generator/DefaultNameGenerator.php

@@ -0,0 +1,48 @@
+<?php
+
+/**
+ * This file is part of the ramsey/uuid library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ */
+
+declare(strict_types=1);
+
+namespace Ramsey\Uuid\Generator;
+
+use Ramsey\Uuid\Exception\NameException;
+use Ramsey\Uuid\UuidInterface;
+use ValueError;
+
+use function hash;
+
+/**
+ * DefaultNameGenerator generates strings of binary data based on a namespace,
+ * name, and hashing algorithm
+ */
+class DefaultNameGenerator implements NameGeneratorInterface
+{
+    /** @psalm-pure */
+    public function generate(UuidInterface $ns, string $name, string $hashAlgorithm): string
+    {
+        try {
+            /** @var string|bool $bytes */
+            $bytes = @hash($hashAlgorithm, $ns->getBytes() . $name, true);
+        } catch (ValueError $e) {
+            $bytes = false; // keep same behavior than PHP 7
+        }
+
+        if ($bytes === false) {
+            throw new NameException(sprintf(
+                'Unable to hash namespace and name with algorithm \'%s\'',
+                $hashAlgorithm
+            ));
+        }
+
+        return (string) $bytes;
+    }
+}