diff options
Diffstat (limited to 'vendor/ramsey/uuid/src/Provider/Node/RandomNodeProvider.php')
-rw-r--r-- | vendor/ramsey/uuid/src/Provider/Node/RandomNodeProvider.php | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/Provider/Node/RandomNodeProvider.php b/vendor/ramsey/uuid/src/Provider/Node/RandomNodeProvider.php new file mode 100644 index 000000000..76c570d7f --- /dev/null +++ b/vendor/ramsey/uuid/src/Provider/Node/RandomNodeProvider.php @@ -0,0 +1,42 @@ +<?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 + * @link https://benramsey.com/projects/ramsey-uuid/ Documentation + * @link https://packagist.org/packages/ramsey/uuid Packagist + * @link https://github.com/ramsey/uuid GitHub + */ + +namespace Ramsey\Uuid\Provider\Node; + +use Ramsey\Uuid\Provider\NodeProviderInterface; + +/** + * RandomNodeProvider provides functionality to generate a random node ID, in + * the event that the node ID could not be obtained from the host system + * + * @link http://tools.ietf.org/html/rfc4122#section-4.5 + */ +class RandomNodeProvider implements NodeProviderInterface +{ + /** + * Returns the system node ID + * + * @return string System node ID as a hexadecimal string + * @throws \Exception if it was not possible to gather sufficient entropy + */ + public function getNode() + { + $node = hexdec(bin2hex(random_bytes(6))); + + // Set the multicast bit; see RFC 4122, section 4.5. + $node = $node | 0x010000000000; + + return str_pad(dechex($node), 12, '0', STR_PAD_LEFT); + } +} |