Fix & cleanup OpenToLAN

src/main/java/net/minestom/server/extras/lan/OpenToLAN.java

@@ -59,12 +59,9 @@ public class OpenToLAN {
      */
     public static boolean open(@NotNull OpenToLANConfig config) {
         Objects.requireNonNull(config, "config");
+        if (socket != null) return false;
 
-        if (socket != null) {
-            return false;
-        } else {
         int port = config.port;
-
         if (port == 0) {
             try {
                 port = NetworkUtils.getFreePort();
@@ -87,7 +84,6 @@ public class OpenToLAN {
                 .schedule();
         return true;
     }
-    }
 
     /**
      * Closes the server to LAN.
@@ -95,18 +91,14 @@ public class OpenToLAN {
      * @return {@code true} if it was closed, {@code false} if it was already closed
      */
     public static boolean close() {
-        if (socket == null) {
-            return false;
-        } else {
+        if (socket == null) return false;
         task.cancel();
         socket.close();
 
         task = null;
         socket = null;
-
         return true;
     }
-    }
 
     /**
      * Checks if the server is currently opened to LAN.
@@ -121,7 +113,7 @@ public class OpenToLAN {
      * Performs the ping.
      */
     private static void ping() {
-        if (MinecraftServer.getServer().getPort() != 0) {
+        if (!MinecraftServer.getServer().isOpen()) return;
         if (packet == null || eventCooldown.isReady(System.currentTimeMillis())) {
             final ServerListPingEvent event = new ServerListPingEvent(OPEN_TO_LAN);
             EventDispatcher.call(event);
@@ -132,12 +124,10 @@ public class OpenToLAN {
             eventCooldown.refreshLastUpdate(System.currentTimeMillis());
         }
 
-
         try {
             socket.send(packet);
         } catch (IOException e) {
             LOGGER.warn("Could not send Open to LAN packet!", e);
         }
     }
-    }
 }

src/main/java/net/minestom/server/network/socket/Server.java

@@ -5,6 +5,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
+import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.nio.channels.SelectionKey;
 import java.nio.channels.Selector;
@@ -41,6 +42,12 @@ public final class Server {
     }
 
     public void start(SocketAddress address) throws IOException {
+        if (address instanceof InetSocketAddress) {
+            InetSocketAddress inetSocketAddress = (InetSocketAddress) address;
+            this.address = inetSocketAddress.getHostString();
+            this.port = inetSocketAddress.getPort();
+        } // TODO unix domain support
+
         this.serverSocket = ServerSocketChannel.open();
         serverSocket.bind(address);
         serverSocket.configureBlocking(false);