Fix brand

connector/src/main/java/org/geysermc/connector/network/translators/java/JavaPluginMessageTranslator.java

@@ -25,6 +25,8 @@
 
 package org.geysermc.connector.network.translators.java;
 
+import com.github.steveice10.packetlib.io.NetOutput;
+import com.github.steveice10.packetlib.io.buffer.ByteBufferNetOutput;
 import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
@@ -33,14 +35,37 @@ import org.geysermc.connector.network.translators.Translator;
 import com.github.steveice10.mc.protocol.packet.ingame.client.ClientPluginMessagePacket;
 import com.github.steveice10.mc.protocol.packet.ingame.server.ServerPluginMessagePacket;
 
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+
 @Translator(packet = ServerPluginMessagePacket.class)
 public class JavaPluginMessageTranslator extends PacketTranslator<ServerPluginMessagePacket> {
+    
+    private static final int MAX_VAR_INT_LENGTH = 5;
+
     @Override
     public void translate(ServerPluginMessagePacket packet, GeyserSession session) {
         if (packet.getChannel().equals("minecraft:brand")) {
+            byte[] data;
+            try {
+                data = writeString(GeyserConnector.NAME);
+            } catch (IOException e) {
+                e.printStackTrace();
+                return;
+            }
             session.getDownstream().getSession().send(
-                    new ClientPluginMessagePacket(packet.getChannel(), GeyserConnector.NAME.getBytes())
+                    new ClientPluginMessagePacket(packet.getChannel(), data)
             );
         }
     }
+
+    private byte[] writeString(String string) throws IOException {
+        byte[] data = string.getBytes(StandardCharsets.UTF_8);
+        ByteBuffer byteBuffer = ByteBuffer.allocate(MAX_VAR_INT_LENGTH + data.length);
+        NetOutput output = new ByteBufferNetOutput(byteBuffer);
+        output.writeVarInt(data.length);
+        output.writeBytes(data);
+        return byteBuffer.array();
+    }
 }