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Code Issues Projects Releases Wiki Activity

Implement dual protocol version support.

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This commit is contained in:
md_5 2014-01-27 11:26:27 +11:00
parent 5c12f900b3
commit b2f517fa63
15 changed files with 114 additions and 44 deletions
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2
api/src/main/java/net/md_5/bungee/api/ProxyServer.java
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@ -174,6 +174,7 @@ public abstract class ProxyServer
*
* @return the supported Minecraft version
*/
@Deprecated
public abstract String getGameVersion();
/**
@ -181,6 +182,7 @@ public abstract class ProxyServer
*
* @return the Minecraft protocol version
*/
@Deprecated
public abstract int getProtocolVersion();
/**

20
protocol/src/main/java/net/md_5/bungee/protocol/DefinedPacket.java
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@ -114,9 +114,25 @@ public abstract class DefinedPacket
}
}
public abstract void read(ByteBuf buf);
public void read(ByteBuf buf)
{
throw new UnsupportedOperationException( "Packet must implement read method" );
}
public abstract void write(ByteBuf buf);
public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
read( buf );
}
public void write(ByteBuf buf)
{
throw new UnsupportedOperationException( "Packet must implement write method" );
}
public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
write( buf );
}
public abstract void handle(AbstractPacketHandler handler) throws Exception;

5
protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
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@ -1,6 +1,5 @@
package net.md_5.bungee.protocol;
import com.google.common.base.Charsets;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
@ -15,6 +14,8 @@ public class MinecraftDecoder extends ByteToMessageDecoder
@Setter
private Protocol protocol;
private boolean server;
@Setter
private int protocolVersion;
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception
@ -28,7 +29,7 @@ public class MinecraftDecoder extends ByteToMessageDecoder
if ( prot.hasPacket( packetId ) )
{
packet = prot.createPacket( packetId );
packet.read( in );
packet.read( in, prot, protocolVersion );
if ( in.readableBytes() != 0 )
{
throw new BadPacketException( "Did not read all bytes from packet " + packet.getClass() + " " + packetId + " Protocol " + protocol + " Direction " + prot );

4
protocol/src/main/java/net/md_5/bungee/protocol/MinecraftEncoder.java
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@ -13,12 +13,14 @@ public class MinecraftEncoder extends MessageToByteEncoder<DefinedPacket>
@Setter
private Protocol protocol;
private boolean server;
@Setter
private int protocolVersion;
@Override
protected void encode(ChannelHandlerContext ctx, DefinedPacket msg, ByteBuf out) throws Exception
{
Protocol.ProtocolDirection prot = ( server ) ? protocol.TO_CLIENT : protocol.TO_SERVER;
DefinedPacket.writeVarInt( prot.getId( msg.getClass() ), out );
msg.write( out );
msg.write( out, prot, protocolVersion );
}
}

5
protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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@ -4,6 +4,8 @@ import com.google.common.base.Preconditions;
import gnu.trove.map.TObjectIntMap;
import gnu.trove.map.hash.TObjectIntHashMap;
import java.lang.reflect.Constructor;
import java.util.Arrays;
import java.util.List;
import lombok.RequiredArgsConstructor;
import net.md_5.bungee.protocol.packet.Chat;
import net.md_5.bungee.protocol.packet.ClientSettings;
@ -95,8 +97,7 @@ public enum Protocol
};
/*========================================================================*/
public static final int MAX_PACKET_ID = 0xFF;
public static final int PROTOCOL_VERSION = 0x04;
public static final String MINECRAFT_VERSION = "1.7.2";
public static List<Integer> supportedVersions = Arrays.asList( 4, 8 );
/*========================================================================*/
public final ProtocolDirection TO_SERVER = new ProtocolDirection( "TO_SERVER" );
public final ProtocolDirection TO_CLIENT = new ProtocolDirection( "TO_CLIENT" );

23
protocol/src/main/java/net/md_5/bungee/protocol/packet/Chat.java
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@ -7,6 +7,7 @@ import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import net.md_5.bungee.protocol.AbstractPacketHandler;
import net.md_5.bungee.protocol.Protocol;
@Data
@NoArgsConstructor
@ -16,17 +17,31 @@ public class Chat extends DefinedPacket
{
private String message;
private byte position;
@Override
public void read(ByteBuf buf)
public Chat(String message)
{
message = readString( buf );
this( message, (byte) 0 );
}
@Override
public void write(ByteBuf buf)
public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
message = readString( buf );
if ( direction.toString().equals( "TO_CLIENT" ) && protocolVersion >= 5 )
{
position = buf.readByte();
}
}
@Override
public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
writeString( message, buf );
if ( direction.toString().equals( "TO_CLIENT" ) && protocolVersion >= 5 )
{
buf.writeByte( position );
}
}
@Override

17
protocol/src/main/java/net/md_5/bungee/protocol/packet/ClientSettings.java
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@ -7,6 +7,7 @@ import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import net.md_5.bungee.protocol.AbstractPacketHandler;
import net.md_5.bungee.protocol.Protocol;
@Data
@NoArgsConstructor
@ -20,28 +21,34 @@ public class ClientSettings extends DefinedPacket
private byte chatFlags;
private boolean unknown;
private byte difficulty;
private boolean showCape;
private byte showCape;
@Override
public void read(ByteBuf buf)
public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
locale = readString( buf );
viewDistance = buf.readByte();
chatFlags = buf.readByte();
unknown = buf.readBoolean();
if ( protocolVersion < 5 )
{
difficulty = buf.readByte();
showCape = buf.readBoolean();
}
showCape = buf.readByte();
}
@Override
public void write(ByteBuf buf)
public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
writeString( locale, buf );
buf.writeByte( viewDistance );
buf.writeByte( chatFlags );
buf.writeBoolean( unknown );
if ( protocolVersion < 5 )
{
buf.writeByte( difficulty );
buf.writeBoolean( showCape );
}
buf.writeByte( showCape );
}
@Override

17
protocol/src/main/java/net/md_5/bungee/protocol/packet/ScoreboardScore.java
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@ -7,6 +7,7 @@ import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import net.md_5.bungee.protocol.AbstractPacketHandler;
import net.md_5.bungee.protocol.Protocol;
@Data
@NoArgsConstructor
@ -24,28 +25,40 @@ public class ScoreboardScore extends DefinedPacket
private int value;
@Override
public void read(ByteBuf buf)
public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
itemName = readString( buf );
action = buf.readByte();
if ( action != 1 )
{
scoreName = readString( buf );
if ( protocolVersion >= 7 )
{
value = readVarInt( buf );
} else
{
value = buf.readInt();
}
}
}
@Override
public void write(ByteBuf buf)
public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
writeString( itemName, buf );
buf.writeByte( action );
if ( action != 1 )
{
writeString( scoreName, buf );
if ( protocolVersion >= 7 )
{
writeVarInt( value, buf );
} else
{
buf.writeInt( value );
}
}
}
@Override
public void handle(AbstractPacketHandler handler) throws Exception

22
protocol/src/main/java/net/md_5/bungee/protocol/packet/Team.java
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@ -7,6 +7,7 @@ import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import net.md_5.bungee.protocol.AbstractPacketHandler;
import net.md_5.bungee.protocol.Protocol;
@Data
@NoArgsConstructor
@ -40,7 +41,7 @@ public class Team extends DefinedPacket
}
@Override
public void read(ByteBuf buf)
public void read(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
name = readString( buf );
mode = buf.readByte();
@ -53,8 +54,9 @@ public class Team extends DefinedPacket
}
if ( mode == 0 || mode == 3 || mode == 4 )
{
players = new String[ buf.readShort() ];
for ( int i = 0; i < getPlayers().length; i++ )
int len = ( protocolVersion >= 7 ) ? readVarInt( buf ) : buf.readInt();
players = new String[ len ];
for ( int i = 0; i < len; i++ )
{
players[i] = readString( buf );
}
@ -62,7 +64,7 @@ public class Team extends DefinedPacket
}
@Override
public void write(ByteBuf buf)
public void write(ByteBuf buf, Protocol.ProtocolDirection direction, int protocolVersion)
{
writeString( name, buf );
buf.writeByte( mode );
@ -75,10 +77,16 @@ public class Team extends DefinedPacket
}
if ( mode == 0 || mode == 3 || mode == 4 )
{
buf.writeShort( players.length );
for ( int i = 0; i < players.length; i++ )
if ( protocolVersion >= 7 )
{
writeString( players[i], buf );
writeVarInt( players.length, buf );
} else
{
buf.writeShort( players.length );
}
for ( String player : players )
{
writeString( player, buf );
}
}
}

4
proxy/src/main/java/net/md_5/bungee/BungeeCord.java
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@ -469,13 +469,13 @@ public class BungeeCord extends ProxyServer
@Override
public int getProtocolVersion()
{
return Protocol.PROTOCOL_VERSION;
return Protocol.supportedVersions.get( Protocol.supportedVersions.size() - 1 );
}
@Override
public String getGameVersion()
{
return Protocol.MINECRAFT_VERSION;
return "1.7.4";
}
@Override

4
proxy/src/main/java/net/md_5/bungee/UserConnection.java
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@ -216,8 +216,8 @@ public final class UserConnection implements ProxiedPlayer
protected void initChannel(Channel ch) throws Exception
{
PipelineUtils.BASE.initChannel( ch );
ch.pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, false ) );
ch.pipeline().addAfter( PipelineUtils.FRAME_PREPENDER, PipelineUtils.PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, false ) );
ch.pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, false, getPendingConnection().getVersion() ) );
ch.pipeline().addAfter( PipelineUtils.FRAME_PREPENDER, PipelineUtils.PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, false, getPendingConnection().getVersion() ) );
ch.pipeline().get( HandlerBoss.class ).setHandler( new ServerConnector( bungee, UserConnection.this, target ) );
}
};

10
proxy/src/main/java/net/md_5/bungee/connection/InitialHandler.java
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@ -175,8 +175,9 @@ public class InitialHandler extends PacketHandler implements PendingConnection
forced.ping( pingBack );
} else
{
int protocol = ( Protocol.supportedVersions.contains( handshake.getProtocolVersion() ) ) ? handshake.getProtocolVersion() : -1;
pingBack.done( new ServerPing(
new ServerPing.Protocol( bungee.getGameVersion(), bungee.getProtocolVersion() ),
new ServerPing.Protocol( bungee.getGameVersion(), protocol ),
new ServerPing.Players( listener.getMaxPlayers(), bungee.getOnlineCount(), null ),
motd, BungeeCord.getInstance().config.favicon ),
null );
@ -198,6 +199,7 @@ public class InitialHandler extends PacketHandler implements PendingConnection
{
Preconditions.checkState( thisState == State.HANDSHAKE, "Not expecting HANDSHAKE" );
this.handshake = handshake;
ch.setVersion( handshake.getProtocolVersion() );
// SRV records can end with a . depending on DNS / client.
if ( handshake.getHost().endsWith( "." ) )
@ -233,14 +235,10 @@ public class InitialHandler extends PacketHandler implements PendingConnection
Preconditions.checkState( thisState == State.USERNAME, "Not expecting USERNAME" );
this.loginRequest = loginRequest;
if ( handshake.getProtocolVersion() > bungee.getProtocolVersion() )
if ( !Protocol.supportedVersions.contains( handshake.getProtocolVersion() ) )
{
disconnect( bungee.getTranslation( "outdated_server" ) );
return;
} else if ( handshake.getProtocolVersion() < bungee.getProtocolVersion() )
{
disconnect( bungee.getTranslation( "outdated_client" ) );
return;
}
if ( getName().length() > 16 )

7
proxy/src/main/java/net/md_5/bungee/connection/PingHandler.java
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@ -3,6 +3,7 @@ package net.md_5.bungee.connection;
import lombok.RequiredArgsConstructor;
import net.md_5.bungee.BungeeCord;
import net.md_5.bungee.api.Callback;
import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.ServerPing;
import net.md_5.bungee.api.config.ServerInfo;
import net.md_5.bungee.netty.ChannelWrapper;
@ -27,12 +28,12 @@ public class PingHandler extends PacketHandler
public void connected(ChannelWrapper channel) throws Exception
{
this.channel = channel;
MinecraftEncoder encoder = new MinecraftEncoder( Protocol.HANDSHAKE, false );
MinecraftEncoder encoder = new MinecraftEncoder( Protocol.HANDSHAKE, false, ProxyServer.getInstance().getProtocolVersion() );
channel.getHandle().pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.STATUS, false ) );
channel.getHandle().pipeline().addAfter( PipelineUtils.FRAME_DECODER, PipelineUtils.PACKET_DECODER, new MinecraftDecoder( Protocol.STATUS, false, ProxyServer.getInstance().getProtocolVersion() ) );
channel.getHandle().pipeline().addAfter( PipelineUtils.FRAME_PREPENDER, PipelineUtils.PACKET_ENCODER, encoder );
channel.write( new Handshake( Protocol.PROTOCOL_VERSION, target.getAddress().getHostString(), target.getAddress().getPort(), 1 ) );
channel.write( new Handshake( ProxyServer.getInstance().getProtocolVersion(), target.getAddress().getHostString(), target.getAddress().getPort(), 1 ) );
encoder.setProtocol( Protocol.STATUS );
channel.write( new StatusRequest() );

6
proxy/src/main/java/net/md_5/bungee/netty/ChannelWrapper.java
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@ -28,6 +28,12 @@ public class ChannelWrapper
ch.pipeline().get( MinecraftEncoder.class ).setProtocol( protocol );
}
public void setVersion(int protocol)
{
ch.pipeline().get( MinecraftDecoder.class ).setProtocolVersion( protocol );
ch.pipeline().get( MinecraftEncoder.class ).setProtocolVersion( protocol );
}
public synchronized void write(Object packet)
{
if ( !closed )

4
proxy/src/main/java/net/md_5/bungee/netty/PipelineUtils.java
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@ -43,8 +43,8 @@ public class PipelineUtils
BASE.initChannel( ch );
ch.pipeline().addBefore( FRAME_DECODER, LEGACY_DECODER, new LegacyDecoder() );
ch.pipeline().addAfter( FRAME_DECODER, PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, true ) );
ch.pipeline().addAfter( FRAME_PREPENDER, PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, true ) );
ch.pipeline().addAfter( FRAME_DECODER, PACKET_DECODER, new MinecraftDecoder( Protocol.HANDSHAKE, true, ProxyServer.getInstance().getProtocolVersion() ) );
ch.pipeline().addAfter( FRAME_PREPENDER, PACKET_ENCODER, new MinecraftEncoder( Protocol.HANDSHAKE, true, ProxyServer.getInstance().getProtocolVersion() ) );
ch.pipeline().addBefore( FRAME_PREPENDER, LEGACY_KICKER, new KickStringWriter() );
ch.pipeline().get( HandlerBoss.class ).setHandler( new InitialHandler( ProxyServer.getInstance(), ch.attr( LISTENER ).get() ) );
}