<?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\Cache\Marshaller;
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use Symfony\Component\Cache\Exception\CacheException;
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/**
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* Serializes/unserializes values using igbinary_serialize() if available, serialize() otherwise.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class DefaultMarshaller implements MarshallerInterface
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{
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private $useIgbinarySerialize = true;
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public function __construct(bool $useIgbinarySerialize = null)
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{
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if (null === $useIgbinarySerialize) {
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$useIgbinarySerialize = \extension_loaded('igbinary') && (\PHP_VERSION_ID < 70400 || version_compare('3.1.6', phpversion('igbinary'), '<='));
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} elseif ($useIgbinarySerialize && (!\extension_loaded('igbinary') || (\PHP_VERSION_ID >= 70400 && version_compare('3.1.6', phpversion('igbinary'), '>')))) {
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throw new CacheException(\extension_loaded('igbinary') && \PHP_VERSION_ID >= 70400 ? 'Please upgrade the "igbinary" PHP extension to v3.1.6 or higher.' : 'The "igbinary" PHP extension is not loaded.');
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}
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$this->useIgbinarySerialize = $useIgbinarySerialize;
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}
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/**
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* {@inheritdoc}
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*/
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public function marshall(array $values, ?array &$failed): array
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{
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$serialized = $failed = [];
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foreach ($values as $id => $value) {
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try {
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if ($this->useIgbinarySerialize) {
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$serialized[$id] = igbinary_serialize($value);
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} else {
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$serialized[$id] = serialize($value);
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}
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} catch (\Exception $e) {
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$failed[] = $id;
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}
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}
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return $serialized;
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}
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/**
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* {@inheritdoc}
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*/
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public function unmarshall(string $value)
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{
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if ('b:0;' === $value) {
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return false;
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}
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if ('N;' === $value) {
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return null;
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}
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static $igbinaryNull;
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if ($value === ($igbinaryNull ?? $igbinaryNull = \extension_loaded('igbinary') ? igbinary_serialize(null) : false)) {
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return null;
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}
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$unserializeCallbackHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
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try {
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if (':' === ($value[1] ?? ':')) {
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if (false !== $value = unserialize($value)) {
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return $value;
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}
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} elseif (false === $igbinaryNull) {
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throw new \RuntimeException('Failed to unserialize values, did you forget to install the "igbinary" extension?');
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} elseif (null !== $value = igbinary_unserialize($value)) {
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return $value;
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}
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throw new \DomainException(error_get_last() ? error_get_last()['message'] : 'Failed to unserialize values.');
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} catch (\Error $e) {
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throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
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} finally {
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ini_set('unserialize_callback_func', $unserializeCallbackHandler);
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}
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}
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/**
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* @internal
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*/
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public static function handleUnserializeCallback($class)
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{
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throw new \DomainException('Class not found: '.$class);
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}
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}
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