mirror of
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45 lines
1.3 KiB
Java
45 lines
1.3 KiB
Java
package ru.nanit.limbo.connection.pipeline;
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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.MessageToMessageDecoder;
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import ru.nanit.limbo.protocol.*;
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import ru.nanit.limbo.protocol.registry.State;
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import ru.nanit.limbo.util.Logger;
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import java.util.List;
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public class PacketDecoder extends MessageToMessageDecoder<ByteBuf> {
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private State.PacketRegistry mappings;
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public PacketDecoder() {
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updateState(State.HANDSHAKING);
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}
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf buf, List<Object> out) throws Exception {
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if (!ctx.channel().isActive() || mappings == null) return;
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ByteMessage msg = new ByteMessage(buf);
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int packetId = msg.readVarInt();
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Packet packet = mappings.getPacket(packetId);
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if (packet != null) {
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try {
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packet.decode(msg);
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} catch (Exception e) {
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Logger.warning("Cannot decode packet 0x%s: %s", Integer.toHexString(packetId), e.getMessage());
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}
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ctx.fireChannelRead(packet);
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} else {
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Logger.warning("Undefined incoming packet: 0x" + Integer.toHexString(packetId));
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}
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}
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public void updateState(State state) {
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this.mappings = state.serverBound;
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}
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}
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