Removed pocketmine subdirectory, map PSR-4 style

src/network/upnp/UPnP.php

@@ -0,0 +1,99 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+/**
+ * UPnP port forwarding support. Only for Windows
+ */
+namespace pocketmine\network\upnp;
+
+use pocketmine\network\NetworkInterface;
+use pocketmine\utils\Internet;
+use pocketmine\utils\Utils;
+use function class_exists;
+use function is_object;
+
+class UPnP implements NetworkInterface{
+
+	/** @var string */
+	private $ip;
+	/** @var int */
+	private $port;
+
+	/** @var object|null */
+	private $staticPortMappingCollection = null;
+	/** @var \Logger */
+	private $logger;
+
+	public function __construct(\Logger $logger, string $ip, int $port){
+		if(!Internet::$online){
+			throw new \RuntimeException("Server is offline");
+		}
+		if(Utils::getOS() !== "win"){
+			throw new \RuntimeException("UPnP is only supported on Windows");
+		}
+		if(!class_exists("COM")){
+			throw new \RuntimeException("UPnP requires the com_dotnet extension");
+		}
+		$this->ip = $ip;
+		$this->port = $port;
+		$this->logger = new \PrefixedLogger($logger, "UPnP Port Forwarder");
+	}
+
+	public function start() : void{
+		/** @noinspection PhpUndefinedClassInspection */
+		$com = new \COM("HNetCfg.NATUPnP");
+		/** @noinspection PhpUndefinedFieldInspection */
+
+		if($com === false or !is_object($com->StaticPortMappingCollection)){
+			throw new \RuntimeException("UPnP unsupported or network discovery is not enabled");
+		}
+		/** @noinspection PhpUndefinedFieldInspection */
+		$this->staticPortMappingCollection = $com->StaticPortMappingCollection;
+
+		try{
+			$this->staticPortMappingCollection->Add($this->port, "UDP", $this->port, $this->ip, true, "PocketMine-MP");
+		}catch(\com_exception $e){
+			throw new \RuntimeException($e->getMessage(), 0, $e);
+		}
+		$this->logger->info("Forwarded $this->ip:$this->port to external port $this->port");
+	}
+
+	public function setName(string $name) : void{
+
+	}
+
+	public function tick() : void{
+
+	}
+
+	public function shutdown() : void{
+		if($this->staticPortMappingCollection !== null){
+			try{
+				/** @noinspection PhpUndefinedFieldInspection */
+				$this->staticPortMappingCollection->Remove($this->port, "UDP");
+			}catch(\com_exception $e){
+				//TODO: should this really be silenced?
+			}
+		}
+	}
+}