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<?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\VarDumper\Server;
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use Symfony\Component\VarDumper\Cloner\Data;
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use Symfony\Component\VarDumper\Dumper\ContextProvider\ContextProviderInterface;
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/**
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* Forwards serialized Data clones to a server.
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*
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* @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
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*/
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class Connection
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{
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private string $host;
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private array $contextProviders;
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/**
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* @var resource|null
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*/
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private $socket;
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/**
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* @param string $host The server host
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* @param ContextProviderInterface[] $contextProviders Context providers indexed by context name
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*/
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public function __construct(string $host, array $contextProviders = [])
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{
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if (!str_contains($host, '://')) {
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$host = 'tcp://'.$host;
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}
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$this->host = $host;
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$this->contextProviders = $contextProviders;
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}
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public function getContextProviders(): array
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{
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return $this->contextProviders;
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}
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public function write(Data $data): bool
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{
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$socketIsFresh = !$this->socket;
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if (!$this->socket = $this->socket ?: $this->createSocket()) {
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return false;
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}
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$context = ['timestamp' => microtime(true)];
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foreach ($this->contextProviders as $name => $provider) {
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$context[$name] = $provider->getContext();
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}
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$context = array_filter($context);
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$encodedPayload = base64_encode(serialize([$data, $context]))."\n";
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set_error_handler([self::class, 'nullErrorHandler']);
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try {
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if (-1 !== stream_socket_sendto($this->socket, $encodedPayload)) {
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return true;
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}
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if (!$socketIsFresh) {
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stream_socket_shutdown($this->socket, \STREAM_SHUT_RDWR);
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fclose($this->socket);
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$this->socket = $this->createSocket();
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}
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if (-1 !== stream_socket_sendto($this->socket, $encodedPayload)) {
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return true;
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}
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} finally {
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restore_error_handler();
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}
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return false;
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}
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private static function nullErrorHandler(int $t, string $m)
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{
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// no-op
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}
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private function createSocket()
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{
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set_error_handler([self::class, 'nullErrorHandler']);
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try {
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return stream_socket_client($this->host, $errno, $errstr, 3, \STREAM_CLIENT_CONNECT | \STREAM_CLIENT_ASYNC_CONNECT);
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} finally {
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restore_error_handler();
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}
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}
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}
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