Check HAProxyMessage type is PROXY (#7864)

patches/server/Add-support-for-Proxy-Protocol.patch

@@ -46,13 +46,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +                            @Override
 +                            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
 +                                if (msg instanceof io.netty.handler.codec.haproxy.HAProxyMessage message) {
-+                                    String realaddress = message.sourceAddress();
++                                    if (message.command() == io.netty.handler.codec.haproxy.HAProxyCommand.PROXY) {
-+                                    int realport = message.sourcePort();
++                                        String realaddress = message.sourceAddress();
++                                        int realport = message.sourcePort();
 +
-+                                    SocketAddress socketaddr = new java.net.InetSocketAddress(realaddress, realport);
++                                        SocketAddress socketaddr = new java.net.InetSocketAddress(realaddress, realport);
 +
-+                                    Connection connection = (Connection) channel.pipeline().get("packet_handler");
++                                        Connection connection = (Connection) channel.pipeline().get("packet_handler");
-+                                    connection.address = socketaddr;
++                                        connection.address = socketaddr;
++                                    }
 +                                } else {
 +                                    super.channelRead(ctx, msg);
 +                                }