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https://gitlab.com/signalytic/client-external/streamline/streamline-emr.git
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alec.turner
a424394109
The official image from streamline does not currently work for the arm64 platform. As a temporary measure, the source code and docker build scripts have been lifted from the official images and are used to build locally. Some additional modifications are made to reduce overall image size, these are documented in docker/README.md
67 lines
2.0 KiB
PHP
67 lines
2.0 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Uid;
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/**
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* A v6 UUID is lexicographically sortable and contains a 60-bit timestamp and 62 extra unique bits.
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*
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* Unlike UUIDv1, this implementation of UUIDv6 doesn't leak the MAC address of the host.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class UuidV6 extends Uuid implements TimeBasedUidInterface
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{
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protected const TYPE = 6;
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private static string $node;
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public function __construct(?string $uuid = null)
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{
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if (null === $uuid) {
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$this->uid = static::generate();
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} else {
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parent::__construct($uuid, true);
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}
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}
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public function getDateTime(): \DateTimeImmutable
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{
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return BinaryUtil::hexToDateTime('0'.substr($this->uid, 0, 8).substr($this->uid, 9, 4).substr($this->uid, 15, 3));
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}
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public function getNode(): string
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{
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return substr($this->uid, 24);
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}
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public static function generate(?\DateTimeInterface $time = null, ?Uuid $node = null): string
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{
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$uuidV1 = UuidV1::generate($time, $node);
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$uuid = substr($uuidV1, 15, 3).substr($uuidV1, 9, 4).$uuidV1[0].'-'.substr($uuidV1, 1, 4).'-6'.substr($uuidV1, 5, 3).substr($uuidV1, 18, 6);
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if ($node) {
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return $uuid.substr($uuidV1, 24);
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}
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// uuid_create() returns a stable "node" that can leak the MAC of the host, but
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// UUIDv6 prefers a truly random number here, let's XOR both to preserve the entropy
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if (!isset(self::$node)) {
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$seed = [random_int(0, 0xFFFFFF), random_int(0, 0xFFFFFF)];
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$node = unpack('N2', hex2bin('00'.substr($uuidV1, 24, 6)).hex2bin('00'.substr($uuidV1, 30)));
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self::$node = sprintf('%06x%06x', ($seed[0] ^ $node[1]) | 0x010000, $seed[1] ^ $node[2]);
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}
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return $uuid.self::$node;
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}
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}
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