vendor/symfony/var-dumper/Server/DumpServer.php

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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\VarDumper\Server;

use Psr\Log\LoggerInterface;
use Symfony\Component\VarDumper\Cloner\Data;
use Symfony\Component\VarDumper\Cloner\Stub;

/**
 * A server collecting Data clones sent by a ServerDumper.
 *
 * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
 *
 * @final
 */
class DumpServer
{
    private $host;
    private $socket;
    private $logger;

    public function __construct(string $host, LoggerInterface $logger = null)
    {
        if (!str_contains($host, '://')) {
            $host = 'tcp://'.$host;
        }

        $this->host = $host;
        $this->logger = $logger;
    }

    public function start(): void
    {
        if (!$this->socket = stream_socket_server($this->host, $errno, $errstr)) {
            throw new \RuntimeException(sprintf('Server start failed on "%s": ', $this->host).$errstr.' '.$errno);
        }
    }

    public function listen(callable $callback): void
    {
        if (null === $this->socket) {
            $this->start();
        }

        foreach ($this->getMessages() as $clientId => $message) {
            $payload = @unserialize(base64_decode($message), ['allowed_classes' => [Data::class, Stub::class]]);

            // Impossible to decode the message, give up.
            if (false === $payload) {
                if ($this->logger) {
                    $this->logger->warning('Unable to decode a message from {clientId} client.', ['clientId' => $clientId]);