Merge remote-tracking branch 'origin/dev/3.0.0' into dev/3.0.0

# Conflicts:
#	api/src/main/java/com/velocitypowered/api/proxy/Player.java
#	proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

api/src/main/java/com/velocitypowered/api/proxy/Player.java

@@ -237,4 +237,12 @@ public interface Player extends CommandSource, Identified, InboundConnection,
     return HoverEvent.showEntity(op.apply(HoverEvent.ShowEntity.of(this, getUniqueId(),
             Component.text(getUsername()))));
   }
+
+
+  /**
+   * Gets the player's client brand.
+   *
+   * @return the player's client brand
+   */
+  @Nullable String getClientBrand();
 }

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java

@@ -230,6 +230,7 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
         player.getKnownChannels().removeAll(PluginMessageUtil.getChannels(packet));
         backendConn.write(packet.retain());
       } else if (PluginMessageUtil.isMcBrand(packet)) {
+        player.setClientBrand(PluginMessageUtil.readBrandMessage(packet.content()));
         backendConn.write(PluginMessageUtil
             .rewriteMinecraftBrand(packet, server.getVersion(), player.getProtocolVersion()));
       } else if (BungeeCordMessageResponder.isBungeeCordMessage(packet)) {

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

@@ -144,6 +144,7 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
           .withDynamic(Identity.NAME, this::getUsername)
           .withStatic(PermissionChecker.POINTER, getPermissionChecker())
           .build();
+  private @Nullable String clientBrand;
 
   ConnectedPlayer(VelocityServer server, GameProfile profile, MinecraftConnection connection,
       @Nullable InetSocketAddress virtualHost, boolean onlineMode) {
@@ -761,6 +762,15 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
     return true;
   }
 
+  @Override
+  public String getClientBrand() {
+    return clientBrand;
+  }
+
+  void setClientBrand(String clientBrand) {
+    this.clientBrand = clientBrand;
+  }
+
   @Override
   public void spoofChatInput(String input) {
     Preconditions.checkArgument(input.length() <= Chat.MAX_SERVERBOUND_MESSAGE_LENGTH,

proxy/src/main/java/com/velocitypowered/proxy/protocol/util/PluginMessageUtil.java

@@ -139,11 +139,15 @@ public final class PluginMessageUtil {
     return new PluginMessage(message.getChannel(), rewrittenBuf);
   }
 
-  private static String readBrandMessage(ByteBuf content) {
-    // Some clients (mostly poorly-implemented bots) do not send validly-formed brand messages.
-    // In order to accommodate their broken behavior, we'll first try to read in the 1.8 format, and
-    // if that fails, treat it as a 1.7-format message (which has no prefixed length). (The message
-    // Velocity sends will be in the correct format depending on the protocol.)
+  /**
+   * Some clients (mostly poorly-implemented bots) do not send validly-formed brand messages.
+   * In order to accommodate their broken behavior, we'll first try to read in the 1.8 format, and
+   * if that fails, treat it as a 1.7-format message (which has no prefixed length). (The message
+   * Velocity sends will be in the correct format depending on the protocol.)
+   * @param content the brand packet
+   * @return the client brand
+   */
+  public static String readBrandMessage(ByteBuf content) {
     try {
       return ProtocolUtils.readString(content.slice());
     } catch (Exception e) {