1 files changed, 194 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/Rfc4122/Fields.php b/vendor/ramsey/uuid/src/Rfc4122/Fields.php
new file mode 100644
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+++ b/vendor/ramsey/uuid/src/Rfc4122/Fields.php
@@ -0,0 +1,194 @@
+<?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\Rfc4122;
+
+use Ramsey\Uuid\Exception\InvalidArgumentException;
+use Ramsey\Uuid\Fields\SerializableFieldsTrait;
+use Ramsey\Uuid\Type\Hexadecimal;
+use Ramsey\Uuid\Uuid;
+
+use function bin2hex;
+use function dechex;
+use function hexdec;
+use function sprintf;
+use function str_pad;
+use function strlen;
+use function substr;
+use function unpack;
+
+use const STR_PAD_LEFT;
+
+/**
+ * RFC 4122 variant UUIDs are comprised of a set of named fields
+ *
+ * Internally, this class represents the fields together as a 16-byte binary
+ * string.
+ *
+ * @psalm-immutable
+ */
+final class Fields implements FieldsInterface
+{
+    use NilTrait;
+    use SerializableFieldsTrait;
+    use VariantTrait;
+    use VersionTrait;
+
+    /**
+     * @var string
+     */
+    private $bytes;
+
+    /**
+     * @param string $bytes A 16-byte binary string representation of a UUID
+     *
+     * @throws InvalidArgumentException if the byte string is not exactly 16 bytes
+     * @throws InvalidArgumentException if the byte string does not represent an RFC 4122 UUID
+     * @throws InvalidArgumentException if the byte string does not contain a valid version
+     */
+    public function __construct(string $bytes)
+    {
+        if (strlen($bytes) !== 16) {
+            throw new InvalidArgumentException(
+                'The byte string must be 16 bytes long; '
+                . 'received ' . strlen($bytes) . ' bytes'
+            );
+        }
+
+        $this->bytes = $bytes;
+
+        if (!$this->isCorrectVariant()) {
+            throw new InvalidArgumentException(
+                'The byte string received does not conform to the RFC 4122 variant'
+            );
+        }
+
+        if (!$this->isCorrectVersion()) {
+            throw new InvalidArgumentException(
+                'The byte string received does not contain a valid RFC 4122 version'
+            );
+        }
+    }
+
+    public function getBytes(): string
+    {
+        return $this->bytes;
+    }
+
+    public function getClockSeq(): Hexadecimal
+    {
+        $clockSeq = hexdec(bin2hex(substr($this->bytes, 8, 2))) & 0x3fff;
+
+        return new Hexadecimal(str_pad(dechex($clockSeq), 4, '0', STR_PAD_LEFT));
+    }
+
+    public function getClockSeqHiAndReserved(): Hexadecimal
+    {
+        return new Hexadecimal(bin2hex(substr($this->bytes, 8, 1)));
+    }
+
+    public function getClockSeqLow(): Hexadecimal
+    {
+        return new Hexadecimal(bin2hex(substr($this->bytes, 9, 1)));
+    }
+
+    public function getNode(): Hexadecimal
+    {
+        return new Hexadecimal(bin2hex(substr($this->bytes, 10)));
+    }
+
+    public function getTimeHiAndVersion(): Hexadecimal
+    {
+        return new Hexadecimal(bin2hex(substr($this->bytes, 6, 2)));
+    }
+
+    public function getTimeLow(): Hexadecimal
+    {
+        return new Hexadecimal(bin2hex(substr($this->bytes, 0, 4)));
+    }
+
+    public function getTimeMid(): Hexadecimal
+    {
+        return new Hexadecimal(bin2hex(substr($this->bytes, 4, 2)));
+    }
+
+    /**
+     * Returns the full 60-bit timestamp, without the version
+     *
+     * For version 2 UUIDs, the time_low field is the local identifier and
+     * should not be returned as part of the time. For this reason, we set the
+     * bottom 32 bits of the timestamp to 0's. As a result, there is some loss
+     * of fidelity of the timestamp, for version 2 UUIDs. The timestamp can be
+     * off by a range of 0 to 429.4967295 seconds (or 7 minutes, 9 seconds, and
+     * 496730 microseconds).
+     *
+     * For version 6 UUIDs, the timestamp order is reversed from the typical RFC
+     * 4122 order (the time bits are in the correct bit order, so that it is
+     * monotonically increasing). In returning the timestamp value, we put the
+     * bits in the order: time_low + time_mid + time_hi.
+     */
+    public function getTimestamp(): Hexadecimal
+    {
+        switch ($this->getVersion()) {
+            case Uuid::UUID_TYPE_DCE_SECURITY:
+                $timestamp = sprintf(
+                    '%03x%04s%08s',
+                    hexdec($this->getTimeHiAndVersion()->toString()) & 0x0fff,
+                    $this->getTimeMid()->toString(),
+                    ''
+                );
+
+                break;
+            case Uuid::UUID_TYPE_PEABODY:
+                $timestamp = sprintf(
+                    '%08s%04s%03x',
+                    $this->getTimeLow()->toString(),
+                    $this->getTimeMid()->toString(),
+                    hexdec($this->getTimeHiAndVersion()->toString()) & 0x0fff
+                );
+
+                break;
+            default:
+                $timestamp = sprintf(
+                    '%03x%04s%08s',
+                    hexdec($this->getTimeHiAndVersion()->toString()) & 0x0fff,
+                    $this->getTimeMid()->toString(),
+                    $this->getTimeLow()->toString()
+                );
+        }
+
+        return new Hexadecimal($timestamp);
+    }
+
+    public function getVersion(): ?int
+    {
+        if ($this->isNil()) {
+            return null;
+        }
+
+        /** @var array $parts */
+        $parts = unpack('n*', $this->bytes);
+
+        return (int) $parts[4] >> 12;
+    }
+
+    private function isCorrectVariant(): bool
+    {
+        if ($this->isNil()) {
+            return true;
+        }
+
+        return $this->getVariant() === Uuid::RFC_4122;
+    }
+}