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author | Max Kostikov <max@kostikov.co> | 2018-09-28 15:46:14 +0200 |
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committer | Max Kostikov <max@kostikov.co> | 2018-09-28 15:46:14 +0200 |
commit | 4a904fa3a8af1c101ede76657249fb7eb47faf60 (patch) | |
tree | 544509813fb68579ef2b556ce879a971d183269a /vendor/ramsey/uuid/src/Codec/StringCodec.php | |
parent | f5f6ec3d71acb3e0488386819d5060e59331ec23 (diff) | |
parent | c13d7e29ef9676b0f0e4ae23aa52e203f4ad8895 (diff) | |
download | volse-hubzilla-4a904fa3a8af1c101ede76657249fb7eb47faf60.tar.gz volse-hubzilla-4a904fa3a8af1c101ede76657249fb7eb47faf60.tar.bz2 volse-hubzilla-4a904fa3a8af1c101ede76657249fb7eb47faf60.zip |
Merge branch 'patch-29' into 'dev'
Patch 29
See merge request Kostikov/core!3
Diffstat (limited to 'vendor/ramsey/uuid/src/Codec/StringCodec.php')
-rw-r--r-- | vendor/ramsey/uuid/src/Codec/StringCodec.php | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/Codec/StringCodec.php b/vendor/ramsey/uuid/src/Codec/StringCodec.php new file mode 100644 index 000000000..7f352065c --- /dev/null +++ b/vendor/ramsey/uuid/src/Codec/StringCodec.php @@ -0,0 +1,170 @@ +<?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\Codec; + +use InvalidArgumentException; +use Ramsey\Uuid\Builder\UuidBuilderInterface; +use Ramsey\Uuid\Exception\InvalidUuidStringException; +use Ramsey\Uuid\Uuid; +use Ramsey\Uuid\UuidInterface; + +/** + * StringCodec encodes and decodes RFC 4122 UUIDs + * + * @link http://tools.ietf.org/html/rfc4122 + */ +class StringCodec implements CodecInterface +{ + /** + * @var UuidBuilderInterface + */ + private $builder; + + /** + * Constructs a StringCodec for use encoding and decoding UUIDs + * + * @param UuidBuilderInterface $builder The UUID builder to use when encoding UUIDs + */ + public function __construct(UuidBuilderInterface $builder) + { + $this->builder = $builder; + } + + /** + * Encodes a UuidInterface as a string representation of a UUID + * + * @param UuidInterface $uuid + * @return string Hexadecimal string representation of a UUID + */ + public function encode(UuidInterface $uuid) + { + $fields = array_values($uuid->getFieldsHex()); + + return vsprintf( + '%08s-%04s-%04s-%02s%02s-%012s', + $fields + ); + } + + /** + * Encodes a UuidInterface as a binary representation of a UUID + * + * @param UuidInterface $uuid + * @return string Binary string representation of a UUID + */ + public function encodeBinary(UuidInterface $uuid) + { + return hex2bin($uuid->getHex()); + } + + /** + * Decodes a string representation of a UUID into a UuidInterface object instance + * + * @param string $encodedUuid + * @return UuidInterface + * @throws \Ramsey\Uuid\Exception\InvalidUuidStringException + */ + public function decode($encodedUuid) + { + $components = $this->extractComponents($encodedUuid); + $fields = $this->getFields($components); + + return $this->builder->build($this, $fields); + } + + /** + * Decodes a binary representation of a UUID into a UuidInterface object instance + * + * @param string $bytes + * @return UuidInterface + * @throws \InvalidArgumentException if string has not 16 characters + */ + public function decodeBytes($bytes) + { + if (strlen($bytes) !== 16) { + throw new InvalidArgumentException('$bytes string should contain 16 characters.'); + } + + $hexUuid = unpack('H*', $bytes); + + return $this->decode($hexUuid[1]); + } + + /** + * Returns the UUID builder + * + * @return UuidBuilderInterface + */ + protected function getBuilder() + { + return $this->builder; + } + + /** + * Returns an array of UUID components (the UUID exploded on its dashes) + * + * @param string $encodedUuid + * @return array + * @throws \Ramsey\Uuid\Exception\InvalidUuidStringException + */ + protected function extractComponents($encodedUuid) + { + $nameParsed = str_replace(array( + 'urn:', + 'uuid:', + '{', + '}', + '-' + ), '', $encodedUuid); + + // We have stripped out the dashes and are breaking up the string using + // substr(). In this way, we can accept a full hex value that doesn't + // contain dashes. + $components = array( + substr($nameParsed, 0, 8), + substr($nameParsed, 8, 4), + substr($nameParsed, 12, 4), + substr($nameParsed, 16, 4), + substr($nameParsed, 20) + ); + + $nameParsed = implode('-', $components); + + if (!Uuid::isValid($nameParsed)) { + throw new InvalidUuidStringException('Invalid UUID string: ' . $encodedUuid); + } + + return $components; + } + + /** + * Returns the fields that make up this UUID + * + * @see \Ramsey\Uuid\UuidInterface::getFieldsHex() + * @param array $components + * @return array + */ + protected function getFields(array $components) + { + return array( + 'time_low' => str_pad($components[0], 8, '0', STR_PAD_LEFT), + 'time_mid' => str_pad($components[1], 4, '0', STR_PAD_LEFT), + 'time_hi_and_version' => str_pad($components[2], 4, '0', STR_PAD_LEFT), + 'clock_seq_hi_and_reserved' => str_pad(substr($components[3], 0, 2), 2, '0', STR_PAD_LEFT), + 'clock_seq_low' => str_pad(substr($components[3], 2), 2, '0', STR_PAD_LEFT), + 'node' => str_pad($components[4], 12, '0', STR_PAD_LEFT) + ); + } +} |