docker-php/src/Serializer/LargeIntegerJsonDecode.php at main · docker-php/docker-php

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<?php

declare(strict_types=1);

namespace Docker\Serializer;

use Symfony\Component\Serializer\Encoder\JsonDecode;

/**

* Decode JSON, clamping integers above PHP_INT_MAX to PHP_INT_MAX.

* Docker's uint64 fields can exceed PHP's integer range: `pids_stats.limit` is

* 18446744073709551615 when a container has no PID limit. json_decode() turns

* such values into floats, which the generated integer setters reject. Docker

* uses them as "unlimited" markers or very large counters, so PHP_INT_MAX keeps

* them usable without changing smaller values.

class LargeIntegerJsonDecode extends JsonDecode

{

public function decode(string $data, string $format, array $context = []): mixed

{

return self::clamp(parent::decode($data, $format, $context));

}

private static function clamp(mixed $value): mixed

{

if (\is_float($value)) {

// (float) PHP_INT_MAX is exactly 2^63, the first value outside the integer range.

return $value >= (float) \PHP_INT_MAX ? \PHP_INT_MAX : $value;

}

if (\is_array($value)) {

foreach ($value as $key => $item) {

$value[$key] = self::clamp($item);

}

} elseif ($value instanceof \stdClass) {

foreach (get_object_vars($value) as $key => $item) {

$value->{$key} = self::clamp($item);

}

return $value;

}