Implement dual protocol version support.
This commit is contained in:
parent
5c12f900b3
commit
b2f517fa63
@ -174,6 +174,7 @@ public abstract class ProxyServer
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*
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* @return the supported Minecraft version
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*/
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@Deprecated
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public abstract String getGameVersion();
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/**
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@ -181,6 +182,7 @@ public abstract class ProxyServer
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*
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* @return the Minecraft protocol version
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*/
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@Deprecated
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public abstract int getProtocolVersion();
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/**
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@ -114,9 +114,25 @@ public abstract class DefinedPacket
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}
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}
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public abstract void read(ByteBuf buf);
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public void read(ByteBuf buf)
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{
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throw new UnsupportedOperationException( "Packet must implement read method" );
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}
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public abstract void write(ByteBuf buf);
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public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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read( buf );
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}
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public void write(ByteBuf buf)
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{
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throw new UnsupportedOperationException( "Packet must implement write method" );
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}
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public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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write( buf );
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}
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public abstract void handle(AbstractPacketHandler handler) throws Exception;
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@ -1,6 +1,5 @@
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package net.md_5.bungee.protocol;
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import com.google.common.base.Charsets;
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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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@ -15,6 +14,8 @@ public class MinecraftDecoder extends ByteToMessageDecoder
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@Setter
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private Protocol protocol;
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private boolean server;
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@Setter
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private int protocolVersion;
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception
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@ -28,7 +29,7 @@ public class MinecraftDecoder extends ByteToMessageDecoder
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if ( prot.hasPacket( packetId ) )
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{
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packet = prot.createPacket( packetId );
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packet.read( in );
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packet.read( in, prot, protocolVersion );
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if ( in.readableBytes() != 0 )
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{
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throw new BadPacketException( "Did not read all bytes from packet " + packet.getClass() + " " + packetId + " Protocol " + protocol + " Direction " + prot );
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@ -13,12 +13,14 @@ public class MinecraftEncoder extends MessageToByteEncoder<DefinedPacket>
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@Setter
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private Protocol protocol;
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private boolean server;
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@Setter
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private int protocolVersion;
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@Override
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protected void encode(ChannelHandlerContext ctx, DefinedPacket msg, ByteBuf out) throws Exception
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{
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Protocol.ProtocolDirection prot = ( server ) ? protocol.TO_CLIENT : protocol.TO_SERVER;
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DefinedPacket.writeVarInt( prot.getId( msg.getClass() ), out );
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msg.write( out );
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msg.write( out, prot, protocolVersion );
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}
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}
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@ -4,6 +4,8 @@ import com.google.common.base.Preconditions;
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import gnu.trove.map.TObjectIntMap;
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import gnu.trove.map.hash.TObjectIntHashMap;
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import java.lang.reflect.Constructor;
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import java.util.Arrays;
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import java.util.List;
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import lombok.RequiredArgsConstructor;
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import net.md_5.bungee.protocol.packet.Chat;
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import net.md_5.bungee.protocol.packet.ClientSettings;
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@ -95,8 +97,7 @@ public enum Protocol
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};
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/*========================================================================*/
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public static final int MAX_PACKET_ID = 0xFF;
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public static final int PROTOCOL_VERSION = 0x04;
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public static final String MINECRAFT_VERSION = "1.7.2";
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public static List<Integer> supportedVersions = Arrays.asList( 4, 8 );
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/*========================================================================*/
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public final ProtocolDirection TO_SERVER = new ProtocolDirection( "TO_SERVER" );
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public final ProtocolDirection TO_CLIENT = new ProtocolDirection( "TO_CLIENT" );
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@ -7,6 +7,7 @@ import lombok.Data;
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import lombok.EqualsAndHashCode;
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import lombok.NoArgsConstructor;
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import net.md_5.bungee.protocol.AbstractPacketHandler;
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import net.md_5.bungee.protocol.Protocol;
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@Data
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@NoArgsConstructor
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@ -16,17 +17,31 @@ public class Chat extends DefinedPacket
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{
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private String message;
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private byte position;
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@Override
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public void read(ByteBuf buf)
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public Chat(String message)
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{
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message = readString( buf );
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this( message, (byte) 0 );
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}
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@Override
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public void write(ByteBuf buf)
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public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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message = readString( buf );
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if ( direction.toString().equals( "TO_CLIENT" ) && protocolVersion >= 5 )
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{
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position = buf.readByte();
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}
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}
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@Override
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public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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writeString( message, buf );
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if ( direction.toString().equals( "TO_CLIENT" ) && protocolVersion >= 5 )
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{
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buf.writeByte( position );
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}
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}
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@Override
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@ -7,6 +7,7 @@ import lombok.Data;
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import lombok.EqualsAndHashCode;
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import lombok.NoArgsConstructor;
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import net.md_5.bungee.protocol.AbstractPacketHandler;
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import net.md_5.bungee.protocol.Protocol;
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@Data
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@NoArgsConstructor
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@ -20,28 +21,34 @@ public class ClientSettings extends DefinedPacket
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private byte chatFlags;
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private boolean unknown;
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private byte difficulty;
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private boolean showCape;
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private byte showCape;
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@Override
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public void read(ByteBuf buf)
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public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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locale = readString( buf );
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viewDistance = buf.readByte();
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chatFlags = buf.readByte();
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unknown = buf.readBoolean();
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difficulty = buf.readByte();
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showCape = buf.readBoolean();
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if ( protocolVersion < 5 )
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{
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difficulty = buf.readByte();
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}
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showCape = buf.readByte();
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}
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@Override
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public void write(ByteBuf buf)
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public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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writeString( locale, buf );
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buf.writeByte( viewDistance );
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buf.writeByte( chatFlags );
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buf.writeBoolean( unknown );
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buf.writeByte( difficulty );
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buf.writeBoolean( showCape );
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if ( protocolVersion < 5 )
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{
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buf.writeByte( difficulty );
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}
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buf.writeByte( showCape );
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}
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@Override
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@ -7,6 +7,7 @@ import lombok.Data;
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import lombok.EqualsAndHashCode;
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import lombok.NoArgsConstructor;
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import net.md_5.bungee.protocol.AbstractPacketHandler;
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import net.md_5.bungee.protocol.Protocol;
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@Data
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@NoArgsConstructor
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@ -24,26 +25,38 @@ public class ScoreboardScore extends DefinedPacket
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private int value;
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@Override
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public void read(ByteBuf buf)
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public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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itemName = readString( buf );
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action = buf.readByte();
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if ( action != 1 )
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{
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scoreName = readString( buf );
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value = buf.readInt();
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if ( protocolVersion >= 7 )
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{
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value = readVarInt( buf );
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} else
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{
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value = buf.readInt();
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}
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}
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}
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@Override
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public void write(ByteBuf buf)
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public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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writeString( itemName, buf );
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buf.writeByte( action );
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if ( action != 1 )
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{
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writeString( scoreName, buf );
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buf.writeInt( value );
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if ( protocolVersion >= 7 )
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{
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writeVarInt( value, buf );
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} else
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{
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buf.writeInt( value );
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}
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}
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}
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@ -7,6 +7,7 @@ import lombok.Data;
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import lombok.EqualsAndHashCode;
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import lombok.NoArgsConstructor;
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import net.md_5.bungee.protocol.AbstractPacketHandler;
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import net.md_5.bungee.protocol.Protocol;
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@Data
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@NoArgsConstructor
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@ -40,7 +41,7 @@ public class Team extends DefinedPacket
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}
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@Override
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public void read(ByteBuf buf)
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public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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name = readString( buf );
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mode = buf.readByte();
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@ -53,8 +54,9 @@ public class Team extends DefinedPacket
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}
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if ( mode == 0 || mode == 3 || mode == 4 )
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{
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players = new String[ buf.readShort() ];
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for ( int i = 0; i < getPlayers().length; i++ )
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int len = ( protocolVersion >= 7 ) ? readVarInt( buf ) : buf.readInt();
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players = new String[ len ];
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for ( int i = 0; i < len; i++ )
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{
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players[i] = readString( buf );
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}
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@ -62,7 +64,7 @@ public class Team extends DefinedPacket
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}
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@Override
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public void write(ByteBuf buf)
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public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
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{
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writeString( name, buf );
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buf.writeByte( mode );
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@ -75,10 +77,16 @@ public class Team extends DefinedPacket
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}
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if ( mode == 0 || mode == 3 || mode == 4 )
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{
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buf.writeShort( players.length );
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for ( int i = 0; i < players.length; i++ )
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if ( protocolVersion >= 7 )
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{
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writeString( players[i], buf );
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writeVarInt( players.length, buf );
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} else
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{
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buf.writeShort( players.length );
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}
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for ( String player : players )
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{
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writeString( player, buf );
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}
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}
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}
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@ -469,13 +469,13 @@ public class BungeeCord extends ProxyServer
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@Override
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public int getProtocolVersion()
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{
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return Protocol.PROTOCOL_VERSION;
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return Protocol.supportedVersions.get( Protocol.supportedVersions.size() - 1 );
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}
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@Override
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public String getGameVersion()
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{
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return Protocol.MINECRAFT_VERSION;
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return "1.7.4";
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}
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@Override
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@ -216,8 +216,8 @@ public final class UserConnection implements ProxiedPlayer
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protected void initChannel(Channel ch) throws Exception
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{
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PipelineUtils.BASE.initChannel( ch );
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ch.pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, false ) );
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ch.pipeline().addAfter( PipelineUtils.FRAME_PREPENDER, PipelineUtils.PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, false ) );
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ch.pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, false, getPendingConnection().getVersion() ) );
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ch.pipeline().addAfter( PipelineUtils.FRAME_PREPENDER, PipelineUtils.PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, false, getPendingConnection().getVersion() ) );
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ch.pipeline().get( HandlerBoss.class ).setHandler( new ServerConnector( bungee, UserConnection.this, target ) );
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}
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};
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@ -175,8 +175,9 @@ public class InitialHandler extends PacketHandler implements PendingConnection
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forced.ping( pingBack );
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} else
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{
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int protocol = ( Protocol.supportedVersions.contains( handshake.getProtocolVersion() ) ) ? handshake.getProtocolVersion() : -1;
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pingBack.done( new ServerPing(
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new ServerPing.Protocol( bungee.getGameVersion(), bungee.getProtocolVersion() ),
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new ServerPing.Protocol( bungee.getGameVersion(), protocol ),
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new ServerPing.Players( listener.getMaxPlayers(), bungee.getOnlineCount(), null ),
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motd, BungeeCord.getInstance().config.favicon ),
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null );
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@ -198,6 +199,7 @@ public class InitialHandler extends PacketHandler implements PendingConnection
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{
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Preconditions.checkState( thisState == State.HANDSHAKE, "Not expecting HANDSHAKE" );
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this.handshake = handshake;
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ch.setVersion( handshake.getProtocolVersion() );
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// SRV records can end with a . depending on DNS / client.
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if ( handshake.getHost().endsWith( "." ) )
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@ -233,14 +235,10 @@ public class InitialHandler extends PacketHandler implements PendingConnection
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Preconditions.checkState( thisState == State.USERNAME, "Not expecting USERNAME" );
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this.loginRequest = loginRequest;
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if ( handshake.getProtocolVersion() > bungee.getProtocolVersion() )
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if ( !Protocol.supportedVersions.contains( handshake.getProtocolVersion() ) )
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{
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disconnect( bungee.getTranslation( "outdated_server" ) );
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return;
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} else if ( handshake.getProtocolVersion() < bungee.getProtocolVersion() )
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{
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disconnect( bungee.getTranslation( "outdated_client" ) );
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return;
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}
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if ( getName().length() > 16 )
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@ -3,6 +3,7 @@ package net.md_5.bungee.connection;
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import lombok.RequiredArgsConstructor;
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import net.md_5.bungee.BungeeCord;
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import net.md_5.bungee.api.Callback;
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import net.md_5.bungee.api.ProxyServer;
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import net.md_5.bungee.api.ServerPing;
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import net.md_5.bungee.api.config.ServerInfo;
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import net.md_5.bungee.netty.ChannelWrapper;
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@ -27,12 +28,12 @@ public class PingHandler extends PacketHandler
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public void connected(ChannelWrapper channel) throws Exception
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{
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this.channel = channel;
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MinecraftEncoder encoder = new MinecraftEncoder( Protocol.HANDSHAKE, false );
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MinecraftEncoder encoder = new MinecraftEncoder( Protocol.HANDSHAKE, false, ProxyServer.getInstance().getProtocolVersion() );
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channel.getHandle().pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.STATUS, false ) );
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channel.getHandle().pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.STATUS, false, ProxyServer.getInstance().getProtocolVersion() ) );
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channel.getHandle().pipeline().addAfter( PipelineUtils.FRAME_PREPENDER, PipelineUtils.PACKET_ENCODER, encoder );
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channel.write( new Handshake( Protocol.PROTOCOL_VERSION, target.getAddress().getHostString(), target.getAddress().getPort(), 1 ) );
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channel.write( new Handshake( ProxyServer.getInstance().getProtocolVersion(), target.getAddress().getHostString(), target.getAddress().getPort(), 1 ) );
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encoder.setProtocol( Protocol.STATUS );
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channel.write( new StatusRequest() );
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@ -28,6 +28,12 @@ public class ChannelWrapper
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ch.pipeline().get( MinecraftEncoder.class ).setProtocol( protocol );
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}
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public void setVersion(int protocol)
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{
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ch.pipeline().get( MinecraftDecoder.class ).setProtocolVersion( protocol );
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ch.pipeline().get( MinecraftEncoder.class ).setProtocolVersion( protocol );
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}
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public synchronized void write(Object packet)
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{
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if ( !closed )
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@ -43,8 +43,8 @@ public class PipelineUtils
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BASE.initChannel( ch );
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ch.pipeline().addBefore( FRAME_DECODER, LEGACY_DECODER, new LegacyDecoder() );
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ch.pipeline().addAfter( FRAME_DECODER, PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, true ) );
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ch.pipeline().addAfter( FRAME_PREPENDER, PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, true ) );
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ch.pipeline().addAfter( FRAME_DECODER, PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, true, ProxyServer.getInstance().getProtocolVersion() ) );
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ch.pipeline().addAfter( FRAME_PREPENDER, PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, true, ProxyServer.getInstance().getProtocolVersion() ) );
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ch.pipeline().addBefore( FRAME_PREPENDER, LEGACY_KICKER, new KickStringWriter() );
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ch.pipeline().get( HandlerBoss.class ).setHandler( new InitialHandler( ProxyServer.getInstance(), ch.attr( LISTENER ).get() ) );
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}
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