vendor/symfony/var-dumper/Server/DumpServer.php line 35
<?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 string $host;private ?LoggerInterface $logger;/*** @var resource|null*/private $socket;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 => $message) {$this->logger?->info('Received a payload from client {clientId}', ['clientId' => $clientId]);$payload = @unserialize(base64_decode($message), ['allowed_classes' => [Data::class, Stub::class]]);// Impossible to decode the message, give up.if (false === $payload) {$this->logger?->warning('Unable to decode a message from {clientId} client.', ['clientId' => $clientId]);continue;}if (!\is_array($payload) || \count($payload) < 2 || !$payload[0] instanceof Data || !\is_array($payload[1])) {$this->logger?->warning('Invalid payload from {clientId} client. Expected an array of two elements (Data $data, array $context)', ['clientId' => $clientId]);continue;}[$data, $context] = $payload;$callback($data, $context, $clientId);}}public function getHost(): string{return $this->host;}private function getMessages(): iterable{$sockets = [(int) $this->socket => $this->socket];$write = [];while (true) {$read = $sockets;stream_select($read, $write, $write, null);foreach ($read as $stream) {if ($this->socket === $stream) {$stream = stream_socket_accept($this->socket);$sockets[(int) $stream] = $stream;} elseif (feof($stream)) {unset($sockets[(int) $stream]);fclose($stream);} else {yield (int) $stream => fgets($stream);}}}}}