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107 lines
3.0 KiB
107 lines
3.0 KiB
<?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 Psr\Log\LoggerInterface;
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use Symfony\Component\VarDumper\Cloner\Data;
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use Symfony\Component\VarDumper\Cloner\Stub;
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/**
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* A server collecting Data clones sent by a ServerDumper.
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*
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* @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
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*
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* @final
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*/
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class DumpServer
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{
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private $host;
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private $socket;
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private $logger;
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public function __construct(string $host, LoggerInterface $logger = null)
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{
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if (!str_contains($host, '://')) {
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$host = 'tcp://'.$host;
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}
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$this->host = $host;
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$this->logger = $logger;
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}
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public function start(): void
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{
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if (!$this->socket = stream_socket_server($this->host, $errno, $errstr)) {
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throw new \RuntimeException(sprintf('Server start failed on "%s": ', $this->host).$errstr.' '.$errno);
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}
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}
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public function listen(callable $callback): void
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{
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if (null === $this->socket) {
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$this->start();
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}
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foreach ($this->getMessages() as $clientId => $message) {
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$payload = @unserialize(base64_decode($message), ['allowed_classes' => [Data::class, Stub::class]]);
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// Impossible to decode the message, give up.
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if (false === $payload) {
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if ($this->logger) {
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$this->logger->warning('Unable to decode a message from {clientId} client.', ['clientId' => $clientId]);
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}
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continue;
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}
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if (!\is_array($payload) || \count($payload) < 2 || !$payload[0] instanceof Data || !\is_array($payload[1])) {
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if ($this->logger) {
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$this->logger->warning('Invalid payload from {clientId} client. Expected an array of two elements (Data $data, array $context)', ['clientId' => $clientId]);
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}
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continue;
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}
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[$data, $context] = $payload;
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$callback($data, $context, $clientId);
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}
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}
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public function getHost(): string
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{
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return $this->host;
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}
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private function getMessages(): iterable
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{
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$sockets = [(int) $this->socket => $this->socket];
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$write = [];
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while (true) {
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$read = $sockets;
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stream_select($read, $write, $write, null);
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foreach ($read as $stream) {
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if ($this->socket === $stream) {
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$stream = stream_socket_accept($this->socket);
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$sockets[(int) $stream] = $stream;
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} elseif (feof($stream)) {
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unset($sockets[(int) $stream]);
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fclose($stream);
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} else {
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yield (int) $stream => fgets($stream);
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}
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}
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}
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}
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}
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