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ProxyThread.php
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ProxyThread.php
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<?php
declare(strict_types=1);
namespace libproxy;
use pocketmine\Server;
use pocketmine\snooze\SleeperNotifier;
use pocketmine\thread\Thread;
use RuntimeException;
use Socket;
use Threaded;
use ThreadedLogger;
use Throwable;
use function error_get_last;
use function gc_enable;
use function ini_set;
use function register_shutdown_function;
use function socket_bind;
use function socket_create;
use function socket_last_error;
use function socket_listen;
use function socket_set_option;
use function socket_strerror;
use const AF_INET;
use const PTHREADS_INHERIT_NONE;
use const SO_RCVBUF;
use const SO_REUSEADDR;
use const SO_SNDBUF;
use const SOCK_STREAM;
use const SOL_SOCKET;
use const SOL_TCP;
use const TCP_NODELAY;
class ProxyThread extends Thread
{
public ?string $autoloaderPath = null;
/** @var string|null */
public ?string $crashInfo = null;
/** @var ThreadedLogger */
private ThreadedLogger $logger;
/** @var bool */
private bool $cleanShutdown = false;
/** @var bool */
private bool $ready = false;
/** @var Threaded */
private Threaded $mainToThreadBuffer;
/** @var Threaded */
private Threaded $threadToMainBuffer;
/** @var SleeperNotifier */
private SleeperNotifier $notifier;
/** @var Socket */
private Socket $notifySocket;
/** @var string */
private string $serverIp;
/** @var int */
private int $serverPort;
public function __construct(?string $autoloaderPath, string $serverIp, int $serverPort, ThreadedLogger $logger, Threaded $mainToThreadBuffer, Threaded $threadToMainBuffer, SleeperNotifier $notifier, Socket $notifySocket)
{
$this->autoloaderPath = $autoloaderPath;
$this->serverIp = $serverIp;
$this->serverPort = $serverPort;
$this->logger = $logger;
$this->notifySocket = $notifySocket;
$this->mainToThreadBuffer = $mainToThreadBuffer;
$this->threadToMainBuffer = $threadToMainBuffer;
$this->notifier = $notifier;
$this->setClassLoaders([Server::getInstance()->getLoader()]);
}
/**
* @return void
*/
public function shutdownHandler(): void
{
if ($this->cleanShutdown) {
$this->logger->info('Proxy Thread: Graceful shutdown complete');
} else {
$error = error_get_last();
if ($error === null) {
$this->logger->emergency('Proxy shutdown unexpectedly');
} else {
$this->logger->emergency('Fatal error: ' . $error['message'] . ' in ' . $error['file'] . ' on line ' . $error['line']);
$this->setCrashInfo($error['message']);
}
}
}
private function setCrashInfo(string $info): void
{
$this->synchronized(function (string $info): void {
$this->crashInfo = $info;
$this->notify();
}, $info);
}
public function getCrashInfo(): ?string
{
return $this->crashInfo;
}
public function shutdown(): void
{
$this->isKilled = true;
}
public function startAndWait(int $options = PTHREADS_INHERIT_NONE): void
{
$this->start($options);
$this->synchronized(function (): void {
while (!$this->ready and $this->crashInfo === null) {
$this->wait();
}
if ($this->crashInfo !== null) {
throw new RuntimeException("Proxy failed to start: $this->crashInfo");
}
});
}
protected function onRun(): void
{
try {
gc_enable();
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
ini_set('memory_limit', '512M');
register_shutdown_function([$this, 'shutdownHandler']);
if ($this->autoloaderPath !== null) {
require $this->autoloaderPath;
}
$proxy = new ProxyServer(
$this->logger,
$this->createServerSocket(),
$this->mainToThreadBuffer,
$this->threadToMainBuffer,
$this->notifier,
$this->notifySocket,
);
$this->synchronized(function (): void {
$this->ready = true;
$this->notify();
});
while (!$this->isKilled) {
$proxy->tickProcessor();
}
$proxy->waitShutdown();
$this->cleanShutdown = true;
} catch (Throwable $e) {
$this->setCrashInfo($e->getMessage());
$this->logger->logException($e);
}
}
private function createServerSocket(): Socket
{
$serverSocket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($serverSocket === false) {
throw new RuntimeException("Failed to create socket: " . socket_strerror(socket_last_error()));
}
if (!socket_set_option($serverSocket, SOL_SOCKET, SO_REUSEADDR, 1)) {
throw new RuntimeException("Failed to set option on socket: " . socket_strerror(socket_last_error($serverSocket)));
}
if (!socket_bind($serverSocket, $this->serverIp, $this->serverPort)) {
throw new RuntimeException("Failed to bind to socket: " . socket_strerror(socket_last_error($serverSocket)));
}
if (!socket_listen($serverSocket, 10)) {
throw new RuntimeException("Failed to listen to socket: " . socket_strerror(socket_last_error($serverSocket)));
}
if (!socket_set_option($serverSocket, SOL_SOCKET, SO_SNDBUF, 8 * 1024 * 1024) || !socket_set_option($serverSocket, SOL_SOCKET, SO_RCVBUF, 8 * 1024 * 1024) || !socket_set_option($serverSocket, SOL_TCP, TCP_NODELAY, 1)) {
throw new RuntimeException("Failed to set option on socket: " . socket_strerror(socket_last_error($serverSocket)));
}
return $serverSocket;
}
}