64 lines
2.5 KiB
Java
64 lines
2.5 KiB
Java
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package net.minecraft.network;
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import com.mojang.logging.LogUtils;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.ByteToMessageDecoder;
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import java.io.IOException;
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import java.util.List;
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import net.minecraft.network.protocol.Packet;
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import net.minecraft.network.protocol.PacketType;
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import net.minecraft.util.profiling.jfr.JvmProfiler;
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import org.slf4j.Logger;
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public class PacketDecoder<T extends PacketListener> extends ByteToMessageDecoder implements ProtocolSwapHandler {
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private static final Logger LOGGER = LogUtils.getLogger();
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private final ProtocolInfo<T> protocolInfo;
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public PacketDecoder(ProtocolInfo<T> p_336253_) {
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this.protocolInfo = p_336253_;
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}
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@Override
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protected void decode(ChannelHandlerContext p_130535_, ByteBuf p_130536_, List<Object> p_130537_) throws Exception {
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int i = p_130536_.readableBytes();
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if (i != 0) {
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Packet<? super T> packet;
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try {
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packet = this.protocolInfo.codec().decode(p_130536_);
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} catch (Exception exception) {
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if (exception instanceof SkipPacketException) {
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p_130536_.skipBytes(p_130536_.readableBytes());
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}
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throw exception;
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}
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PacketType<? extends Packet<? super T>> packettype = packet.type();
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JvmProfiler.INSTANCE.onPacketReceived(this.protocolInfo.id(), packettype, p_130535_.channel().remoteAddress(), i);
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if (p_130536_.readableBytes() > 0) {
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throw new IOException(
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"Packet "
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+ this.protocolInfo.id().id()
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+ "/"
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+ packettype
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+ " ("
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+ packet.getClass().getSimpleName()
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+ ") was larger than I expected, found "
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+ p_130536_.readableBytes()
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+ " bytes extra whilst reading packet "
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+ packettype
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);
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} else {
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p_130537_.add(packet);
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if (LOGGER.isDebugEnabled()) {
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LOGGER.debug(
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Connection.PACKET_RECEIVED_MARKER, " IN: [{}:{}] {} -> {} bytes", this.protocolInfo.id().id(), packettype, packet.getClass().getName(), i
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);
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}
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ProtocolSwapHandler.handleInboundTerminalPacket(p_130535_, packet);
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}
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}
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}
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}
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