content: /*
   * Copyright (c) 2019-2020 5zig Reborn
   * Copyright (c) 2015-2019 5zig
   *
   * This file is part of The 5zig Mod
   * The 5zig Mod is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   *
   * The 5zig Mod is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with The 5zig Mod.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package eu.the5zig.mod.chat.network;
  
  import eu.the5zig.mod.chat.network.packets.PacketBuffer;
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.Unpooled;
  import io.netty.channel.ChannelHandlerContext;
  import io.netty.handler.codec.ByteToMessageDecoder;
  import io.netty.handler.codec.CorruptedFrameException;
  
  import java.util.List;
  
  /**
   * Created by 5zig.
   * All rights reserved © 2015
   */
  public class NetworkPrepender extends ByteToMessageDecoder {
  
  	protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> objects) {
  		buffer.markReaderIndex();
  		byte[] var4 = new byte[3];
  
  		for (int var5 = 0; var5 < var4.length; ++var5) {
  			if (!buffer.isReadable()) {
  				buffer.resetReaderIndex();
  				return;
  			}
  
  			var4[var5] = buffer.readByte();
  
  			if (var4[var5] >= 0) {
  				ByteBuf var6 = Unpooled.wrappedBuffer(var4);
  
  				try {
  					int var7 = PacketBuffer.readVarIntFromBuffer(var6);
  
  					if (buffer.readableBytes() < var7) {
  						buffer.resetReaderIndex();
  						return;
  					}
  
  					objects.add(buffer.readBytes(var7));
  				} finally {
  					var6.release();
  				}
  
  				return;
  			}
  		}
  
  		throw new CorruptedFrameException("length wider than 21-bit");
  	}
  
  }
  