package net.minecraftforge.fml.common.network.internal; import net.minecraftforge.fml.common.FMLLog; import net.minecraftforge.fml.common.network.ByteBufUtils; import net.minecraftforge.fml.common.network.FMLIndexedMessageToMessageCodec; import net.minecraftforge.fml.common.network.FMLNetworkException; import com.google.common.base.Splitter; import io.netty.buffer.ByteBuf; import io.netty.channel.ChannelHandlerContext; public class FMLRuntimeCodec extends FMLIndexedMessageToMessageCodec<FMLMessage> { public FMLRuntimeCodec() { addDiscriminator(0,FMLMessage.CompleteHandshake.class); addDiscriminator(1,FMLMessage.OpenGui.class); addDiscriminator(2,FMLMessage.EntitySpawnMessage.class); addDiscriminator(3,FMLMessage.EntityAdjustMessage.class); } @Override public void encodeInto(ChannelHandlerContext ctx, FMLMessage msg, ByteBuf target) throws Exception { msg.toBytes(target); } @Override public void decodeInto(ChannelHandlerContext ctx, ByteBuf source, FMLMessage msg) { msg.fromBytes(source); } @Override protected void testMessageValidity(FMLProxyPacket msg) { if (msg.payload().getByte(0) == 0 && msg.payload().readableBytes() > 2) { FMLLog.severe("The connection appears to have sent an invalid FML packet of type 0, this is likely because it think's it's talking to 1.6.4 FML"); FMLLog.info("Bad data :"); for (String l : Splitter.on('\n').split(ByteBufUtils.getContentDump(msg.payload()))) { FMLLog.info("\t%s",l); } throw new FMLNetworkException("Invalid FML packet"); } } }