mirror of
https://github.com/SpigotMC/BungeeCord.git
synced 2024-11-24 03:05:49 +01:00
Split up EntityMap into different protocol versions
This commit is contained in:
Thinkofdeath
parent
5a638f2290
commit
ca7c755ecd
@ -1,217 +0,0 @@
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package net.md_5.bungee;
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import io.netty.buffer.ByteBuf;
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import net.md_5.bungee.api.connection.ProxiedPlayer;
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import net.md_5.bungee.connection.LoginResult;
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import net.md_5.bungee.protocol.DefinedPacket;
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import net.md_5.bungee.protocol.ProtocolConstants;
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import net.md_5.bungee.protocol.packet.LoginRequest;
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/**
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* Class to rewrite integers within packets.
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*/
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public class EntityMap
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{
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private final boolean[] clientboundInts = new boolean[ 256 ];
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private final boolean[] clientboundVarInts = new boolean[ 256 ];
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private final boolean[] serverboundInts = new boolean[ 256 ];
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private final boolean[] serverboundVarInts = new boolean[ 256 ];
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private final int version;
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public EntityMap(int version)
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{
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this.version = version;
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clientboundInts[0x04] = true; // Entity Equipment
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clientboundInts[0x0A] = true; // Use bed
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clientboundVarInts[0x0B] = true; // Animation
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clientboundVarInts[0x0C] = true; // Spawn Player
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clientboundInts[0x0D] = true; // Collect Item
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clientboundVarInts[0x0E] = true; // Spawn Object
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clientboundVarInts[0x0F] = true; // Spawn Mob
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clientboundVarInts[0x10] = true; // Spawn Painting
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clientboundVarInts[0x11] = true; // Spawn Experience Orb
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clientboundInts[0x12] = true; // Entity Velocity
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clientboundInts[0x14] = true; // Entity
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clientboundInts[0x15] = true; // Entity Relative Move
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clientboundInts[0x16] = true; // Entity Look
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clientboundInts[0x17] = true; // Entity Look and Relative Move
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clientboundInts[0x18] = true; // Entity Teleport
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clientboundInts[0x19] = true; // Entity Head Look
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clientboundInts[0x1A] = true; // Entity Status
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clientboundInts[0x1B] = true; // Attach Entity
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clientboundInts[0x1C] = true; // Entity Metadata
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clientboundInts[0x1D] = true; // Entity Effect
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clientboundInts[0x1E] = true; // Remove Entity Effect
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clientboundInts[0x20] = true; // Entity Properties
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clientboundVarInts[0x25] = true; // Block Break Animation
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clientboundVarInts[0x2C] = true; // Spawn Global Entity
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serverboundInts[0x02] = true; // Use Entity
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serverboundInts[0x0A] = true; // Animation
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serverboundInts[0x0B] = true; // Entity Action
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if ( version >= ProtocolConstants.MINECRAFT_14_11_a )
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{
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migrateIntToVarint( clientboundInts, clientboundVarInts );
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migrateIntToVarint( serverboundInts, serverboundVarInts );
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}
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}
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private void migrateIntToVarint(boolean[] ints, boolean[] varints)
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{
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for ( int i = 0; i < ints.length; i++ )
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{
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if ( ints[i] )
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{
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varints[i] = true;
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ints[i] = false;
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}
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}
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}
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public void rewriteServerbound(ByteBuf packet, int serverEntityId, int clientEntityId)
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{
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rewrite( packet, serverEntityId, clientEntityId, serverboundInts, serverboundVarInts );
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}
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public void rewriteClientbound(ByteBuf packet, int serverEntityId, int clientEntityId)
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{
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rewrite( packet, serverEntityId, clientEntityId, clientboundInts, clientboundVarInts );
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//Special cases
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int readerIndex = packet.readerIndex();
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int packetId = DefinedPacket.readVarInt( packet );
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int packetIdLength = packet.readerIndex() - readerIndex;
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if ( packetId == 0x0D /* Collect Item */ || packetId == 0x1B /* Attach Entity */ )
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{
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int readId = packet.getInt( packetIdLength + 4 );
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if ( readId == serverEntityId )
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{
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packet.setInt( packetIdLength + 4, clientEntityId );
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} else if ( readId == clientEntityId )
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{
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packet.setInt( packetIdLength + 4, serverEntityId );
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}
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} else if ( packetId == 0x13 /* Destroy Entities */ )
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{
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int count = packet.getByte( packetIdLength );
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for ( int i = 0; i < count; i++ )
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{
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int readId = packet.getInt( packetIdLength + 1 + i * 4 );
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if ( readId == serverEntityId )
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{
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packet.setInt( packetIdLength + 1 + i * 4, clientEntityId );
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} else if ( readId == clientEntityId )
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{
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packet.setInt( packetIdLength + 1 + i * 4, serverEntityId );
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}
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}
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} else if ( packetId == 0x0E /* Spawn Object */ )
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{
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DefinedPacket.readVarInt( packet );
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int idLength = packet.readerIndex() - readerIndex - packetIdLength;
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int type = packet.getByte( packetIdLength + idLength );
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if ( type == 60 || type == 90 )
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{
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int readId = packet.getInt( packetIdLength + idLength + 15 );
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int newId = -1;
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if ( readId == serverEntityId )
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{
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packet.setInt( packetIdLength + idLength + 15, clientEntityId );
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newId = clientEntityId;
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} else if ( readId == clientEntityId )
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{
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packet.setInt( packetIdLength + idLength + 15, serverEntityId );
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newId = clientEntityId;
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}
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if ( newId != -1 )
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{
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if ( newId == 0 && readId != 0 )
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{ // Trim off the extra data
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packet.readerIndex( readerIndex );
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packet.writerIndex( packet.readableBytes() - 6 );
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} else if ( newId != 0 && readId == 0 )
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{ // Add on the extra data
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packet.readerIndex( readerIndex );
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packet.capacity( packet.readableBytes() + 6 );
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packet.writerIndex( packet.readableBytes() + 6 );
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}
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}
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}
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} else if ( packetId == 0x0C /* Spawn Player */ && version == ProtocolConstants.MINECRAFT_1_7_6 )
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{
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DefinedPacket.readVarInt( packet );
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int idLength = packet.readerIndex() - readerIndex - packetIdLength;
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String uuid = DefinedPacket.readString( packet );
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String username = DefinedPacket.readString( packet );
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int props = DefinedPacket.readVarInt( packet );
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if ( props == 0 )
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{
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UserConnection player = (UserConnection) BungeeCord.getInstance().getPlayer( username );
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if ( player != null )
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{
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LoginResult profile = player.getPendingConnection().getLoginProfile();
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if ( profile != null && profile.getProperties() != null
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&& profile.getProperties().length >= 1 )
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{
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ByteBuf rest = packet.slice().copy();
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packet.readerIndex( readerIndex );
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packet.writerIndex( readerIndex + packetIdLength + idLength );
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DefinedPacket.writeString( player.getUniqueId().toString(), packet );
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DefinedPacket.writeString( username, packet );
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DefinedPacket.writeVarInt( profile.getProperties().length, packet );
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for ( LoginResult.Property property : profile.getProperties() )
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{
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DefinedPacket.writeString( property.getName(), packet );
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DefinedPacket.writeString( property.getValue(), packet );
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DefinedPacket.writeString( property.getSignature(), packet );
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}
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packet.writeBytes( rest );
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rest.release();
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}
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}
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}
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}
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packet.readerIndex( readerIndex );
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}
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private static void rewrite(ByteBuf packet, int serverEntityId, int clientEntityId, boolean[] ints, boolean[] varints)
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{
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int readerIndex = packet.readerIndex();
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int packetId = DefinedPacket.readVarInt( packet );
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int packetIdLength = packet.readerIndex() - readerIndex;
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if ( ints[packetId] )
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{
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int readId = packet.getInt( packetIdLength );
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if ( readId == serverEntityId )
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{
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packet.setInt( packetIdLength, clientEntityId );
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} else if ( readId == clientEntityId )
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{
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packet.setInt( packetIdLength, serverEntityId );
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}
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} else if ( varints[packetId] )
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{
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// Need to rewrite the packet because VarInts are variable length
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int readId = DefinedPacket.readVarInt( packet );
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int readIdLength = packet.readerIndex() - readerIndex - packetIdLength;
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if ( readId == serverEntityId || readId == clientEntityId )
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{
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ByteBuf data = packet.slice().copy();
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packet.readerIndex( readerIndex );
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packet.writerIndex( packetIdLength );
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DefinedPacket.writeVarInt( readId == serverEntityId ? clientEntityId : serverEntityId, packet );
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packet.writeBytes( data );
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data.release();
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}
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}
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packet.readerIndex( readerIndex );
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}
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}
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@ -32,6 +32,7 @@ import net.md_5.bungee.api.score.Scoreboard;
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import net.md_5.bungee.api.tab.TabListHandler;
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import net.md_5.bungee.chat.ComponentSerializer;
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import net.md_5.bungee.connection.InitialHandler;
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import net.md_5.bungee.entitymap.EntityMap;
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import net.md_5.bungee.netty.ChannelWrapper;
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import net.md_5.bungee.netty.HandlerBoss;
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import net.md_5.bungee.protocol.PacketWrapper;
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@ -116,7 +117,7 @@ public final class UserConnection implements ProxiedPlayer
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public void init()
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{
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this.entityRewrite = new EntityMap( getPendingConnection().getVersion() );
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this.entityRewrite = EntityMap.getEntityMap( getPendingConnection().getVersion() );
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this.displayName = name;
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try
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@ -5,7 +5,6 @@ import com.google.common.io.ByteStreams;
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import java.io.DataInput;
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import java.util.Objects;
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import lombok.RequiredArgsConstructor;
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import net.md_5.bungee.EntityMap;
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import net.md_5.bungee.ServerConnection;
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import net.md_5.bungee.api.event.ServerDisconnectEvent;
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import net.md_5.bungee.UserConnection;
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@ -2,7 +2,6 @@ package net.md_5.bungee.connection;
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import com.google.common.base.Preconditions;
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import net.md_5.bungee.BungeeCord;
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import net.md_5.bungee.EntityMap;
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import net.md_5.bungee.UserConnection;
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import net.md_5.bungee.Util;
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import net.md_5.bungee.api.ProxyServer;
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113
proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
Normal file
113
proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
Normal file
@ -0,0 +1,113 @@
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package net.md_5.bungee.entitymap;
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import io.netty.buffer.ByteBuf;
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import net.md_5.bungee.protocol.DefinedPacket;
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import net.md_5.bungee.protocol.ProtocolConstants;
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/**
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* Class to rewrite integers within packets.
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*/
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public abstract class EntityMap
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{
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private final boolean[] clientboundInts = new boolean[ 256 ];
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private final boolean[] clientboundVarInts = new boolean[ 256 ];
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private final boolean[] serverboundInts = new boolean[ 256 ];
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private final boolean[] serverboundVarInts = new boolean[ 256 ];
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EntityMap()
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{
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}
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// Returns the correct entity map for the protocol version
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public static EntityMap getEntityMap(int version)
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{
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switch ( version )
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{
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case 4:
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return new EntityMap_1_7_2();
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case 5:
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return new EntityMap_1_7_6();
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}
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throw new RuntimeException( "Version " + version + " has no entity map" );
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}
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protected void addRewrite(int id, ProtocolConstants.Direction direction, boolean varint)
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{
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if ( direction == ProtocolConstants.Direction.TO_CLIENT )
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{
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if ( varint )
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{
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clientboundVarInts[ id ] = true;
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} else
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{
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clientboundInts[ id ] = true;
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}
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} else
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{
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if ( varint )
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{
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serverboundVarInts[ id ] = true;
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} else
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{
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serverboundInts[ id ] = true;
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}
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}
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}
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public void rewriteServerbound(ByteBuf packet, int oldId, int newId)
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{
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rewrite( packet, oldId, newId, serverboundInts, serverboundVarInts );
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}
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public void rewriteClientbound(ByteBuf packet, int oldId, int newId)
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{
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rewrite( packet, oldId, newId, clientboundInts, clientboundVarInts );
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}
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protected static void rewriteInt(ByteBuf packet, int oldId, int newId, int offset)
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{
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int readId = packet.getInt( offset );
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if ( readId == oldId )
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{
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packet.setInt( offset, newId );
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} else if ( readId == newId )
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{
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packet.setInt( offset, oldId );
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}
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}
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protected static void rewriteVarInt(ByteBuf packet, int oldId, int newId, int offset)
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{
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// Need to rewrite the packet because VarInts are variable length
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int readId = DefinedPacket.readVarInt( packet );
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int readIdLength = packet.readerIndex() - offset;
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if ( readId == oldId || readId == newId )
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{
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ByteBuf data = packet.slice().copy();
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packet.readerIndex( offset );
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packet.writerIndex( offset );
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DefinedPacket.writeVarInt( readId == oldId ? newId : oldId, packet );
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packet.writeBytes( data );
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data.release();
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}
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}
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// Handles simple packets
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private static void rewrite(ByteBuf packet, int oldId, int newId, boolean[] ints, boolean[] varints)
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{
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int readerIndex = packet.readerIndex();
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int packetId = DefinedPacket.readVarInt( packet );
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int packetIdLength = packet.readerIndex() - readerIndex;
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if ( ints[ packetId ] )
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{
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rewriteInt( packet, oldId, newId, readerIndex + packetIdLength );
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} else if ( varints[ packetId ] )
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{
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rewriteVarInt( packet, oldId, newId, readerIndex + packetIdLength );
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}
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packet.readerIndex( readerIndex );
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}
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}
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@ -0,0 +1,97 @@
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package net.md_5.bungee.entitymap;
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import io.netty.buffer.ByteBuf;
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import net.md_5.bungee.protocol.DefinedPacket;
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import net.md_5.bungee.protocol.ProtocolConstants;
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class EntityMap_1_7_2 extends EntityMap
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{
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EntityMap_1_7_2()
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{
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addRewrite( 0x04, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Equipment
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addRewrite( 0x0A, ProtocolConstants.Direction.TO_CLIENT, false ); // Use bed
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addRewrite( 0x0B, ProtocolConstants.Direction.TO_CLIENT, true ); // Animation
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addRewrite( 0x0C, ProtocolConstants.Direction.TO_CLIENT, true ); // Spawn Player
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addRewrite( 0x0D, ProtocolConstants.Direction.TO_CLIENT, false ); // Collect Item
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addRewrite( 0x0E, ProtocolConstants.Direction.TO_CLIENT, true ); // Spawn Object
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addRewrite( 0x0F, ProtocolConstants.Direction.TO_CLIENT, true ); // Spawn Mob
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addRewrite( 0x10, ProtocolConstants.Direction.TO_CLIENT, true ); // Spawn Painting
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addRewrite( 0x11, ProtocolConstants.Direction.TO_CLIENT, true ); // Spawn Experience Orb
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addRewrite( 0x12, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Velocity
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addRewrite( 0x14, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity
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addRewrite( 0x15, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Relative Move
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addRewrite( 0x16, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Look
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addRewrite( 0x17, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Look and Relative Move
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addRewrite( 0x18, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Teleport
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addRewrite( 0x19, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Head Look
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addRewrite( 0x1A, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Status
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addRewrite( 0x1B, ProtocolConstants.Direction.TO_CLIENT, false ); // Attach Entity
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addRewrite( 0x1C, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Metadata
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addRewrite( 0x1D, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Effect
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addRewrite( 0x1E, ProtocolConstants.Direction.TO_CLIENT, false ); // Remove Entity Effect
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addRewrite( 0x20, ProtocolConstants.Direction.TO_CLIENT, false ); // Entity Properties
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addRewrite( 0x25, ProtocolConstants.Direction.TO_CLIENT, true ); // Block Break Animation
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addRewrite( 0x2C, ProtocolConstants.Direction.TO_CLIENT, true ); // Spawn Global Entity
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addRewrite( 0x02, ProtocolConstants.Direction.TO_SERVER, false ); // Use Entity
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addRewrite( 0x0A, ProtocolConstants.Direction.TO_SERVER, false ); // Animation
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addRewrite( 0x0B, ProtocolConstants.Direction.TO_SERVER, false ); // Entity Action
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}
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@Override
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public void rewriteClientbound(ByteBuf packet, int oldId, int newId)
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{
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super.rewriteClientbound( packet, oldId, newId );
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//Special cases
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int readerIndex = packet.readerIndex();
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int packetId = DefinedPacket.readVarInt( packet );
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int packetIdLength = packet.readerIndex() - readerIndex;
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if ( packetId == 0x0D /* Collect Item */ || packetId == 0x1B /* Attach Entity */ )
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{
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rewriteInt( packet, readerIndex + packetIdLength + 4, oldId, newId );
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} else if ( packetId == 0x13 /* Destroy Entities */ )
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{
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int count = packet.getByte( packetIdLength );
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for ( int i = 0; i < count; i++ )
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{
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rewriteInt( packet, oldId, newId, packetIdLength + 1 + i * 4 );
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}
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} else if ( packetId == 0x0E /* Spawn Object */ )
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{
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DefinedPacket.readVarInt( packet );
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int idLength = packet.readerIndex() - readerIndex - packetIdLength;
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int type = packet.getByte( packetIdLength + idLength );
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|
||||
if ( type == 60 || type == 90 )
|
||||
{
|
||||
int readId = packet.getInt( packetIdLength + idLength + 15 );
|
||||
int changedId = -1;
|
||||
if ( readId == oldId )
|
||||
{
|
||||
packet.setInt( packetIdLength + idLength + 15, newId );
|
||||
changedId = newId;
|
||||
} else if ( readId == newId )
|
||||
{
|
||||
packet.setInt( packetIdLength + idLength + 15, oldId );
|
||||
changedId = newId;
|
||||
}
|
||||
if ( changedId != -1 )
|
||||
{
|
||||
if ( changedId == 0 && readId != 0 )
|
||||
{ // Trim off the extra data
|
||||
packet.readerIndex( readerIndex );
|
||||
packet.writerIndex( packet.readableBytes() - 6 );
|
||||
} else if ( changedId != 0 && readId == 0 )
|
||||
{ // Add on the extra data
|
||||
packet.readerIndex( readerIndex );
|
||||
packet.capacity( packet.readableBytes() + 6 );
|
||||
packet.writerIndex( packet.readableBytes() + 6 );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
packet.readerIndex( readerIndex );
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,60 @@
|
||||
package net.md_5.bungee.entitymap;
|
||||
|
||||
import io.netty.buffer.ByteBuf;
|
||||
import net.md_5.bungee.BungeeCord;
|
||||
import net.md_5.bungee.UserConnection;
|
||||
import net.md_5.bungee.connection.LoginResult;
|
||||
import net.md_5.bungee.protocol.DefinedPacket;
|
||||
|
||||
class EntityMap_1_7_6 extends EntityMap_1_7_2
|
||||
{
|
||||
EntityMap_1_7_6()
|
||||
{
|
||||
super();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void rewriteClientbound(ByteBuf packet, int oldId, int newId)
|
||||
{
|
||||
super.rewriteClientbound( packet, oldId, newId );
|
||||
|
||||
int readerIndex = packet.readerIndex();
|
||||
int packetId = DefinedPacket.readVarInt( packet );
|
||||
int packetIdLength = packet.readerIndex() - readerIndex;
|
||||
if ( packetId == 0x0C /* Spawn Player */ )
|
||||
{
|
||||
DefinedPacket.readVarInt( packet );
|
||||
int idLength = packet.readerIndex() - readerIndex - packetIdLength;
|
||||
String uuid = DefinedPacket.readString( packet );
|
||||
String username = DefinedPacket.readString( packet );
|
||||
int props = DefinedPacket.readVarInt( packet );
|
||||
if ( props == 0 )
|
||||
{
|
||||
UserConnection player = (UserConnection) BungeeCord.getInstance().getPlayer( username );
|
||||
if ( player != null )
|
||||
{
|
||||
LoginResult profile = player.getPendingConnection().getLoginProfile();
|
||||
if ( profile != null && profile.getProperties() != null
|
||||
&& profile.getProperties().length >= 1 )
|
||||
{
|
||||
ByteBuf rest = packet.slice().copy();
|
||||
packet.readerIndex( readerIndex );
|
||||
packet.writerIndex( readerIndex + packetIdLength + idLength );
|
||||
DefinedPacket.writeString( player.getUniqueId().toString(), packet );
|
||||
DefinedPacket.writeString( username, packet );
|
||||
DefinedPacket.writeVarInt( profile.getProperties().length, packet );
|
||||
for ( LoginResult.Property property : profile.getProperties() )
|
||||
{
|
||||
DefinedPacket.writeString( property.getName(), packet );
|
||||
DefinedPacket.writeString( property.getValue(), packet );
|
||||
DefinedPacket.writeString( property.getSignature(), packet );
|
||||
}
|
||||
packet.writeBytes( rest );
|
||||
rest.release();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
packet.readerIndex( readerIndex );
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user