Examples with UserConnection com.viaversion.viaversion.api.connection.UserConnection used on opensource projects

Example 6 with UserConnection

use of com.viaversion.viaversion.api.connection.UserConnection in project ViaFabric by ViaVersion.

the class MixinClientConnectionChInit method onInitChannel.

@Inject(method = "initChannel", at = @At(value = "TAIL"), remap = false)
private void onInitChannel(Channel channel, CallbackInfo ci) {
    if (channel instanceof SocketChannel) {
        UserConnection user = new UserConnectionImpl(channel, true);
        new ProtocolPipelineImpl(user).add(HostnameParserProtocol.INSTANCE);
        channel.pipeline().addBefore("encoder", CommonTransformer.HANDLER_ENCODER_NAME, new FabricEncodeHandler(user)).addBefore("decoder", CommonTransformer.HANDLER_DECODER_NAME, new FabricDecodeHandler(user));
    }
}

Example 7 with UserConnection

use of com.viaversion.viaversion.api.connection.UserConnection in project ViaVersion by ViaVersion.

the class PlayerSneakListener method playerToggleSneak.

@EventHandler(ignoreCancelled = true)
public void playerToggleSneak(PlayerToggleSneakEvent event) {
    Player player = event.getPlayer();
    UserConnection userConnection = getUserConnection(player);
    if (userConnection == null)
        return;
    ProtocolInfo info = userConnection.getProtocolInfo();
    if (info == null)
        return;
    int protocolVersion = info.getProtocolVersion();
    if (is1_14Fix && protocolVersion >= ProtocolVersion.v1_14.getVersion()) {
        setHeight(player, event.isSneaking() ? HEIGHT_1_14 : STANDING_HEIGHT);
        if (event.isSneaking())
            sneakingUuids.add(player.getUniqueId());
        else
            sneakingUuids.remove(player.getUniqueId());
        if (!useCache)
            return;
        if (event.isSneaking())
            sneaking.put(player, true);
        else
            sneaking.remove(player);
    } else if (is1_9Fix && protocolVersion >= ProtocolVersion.v1_9.getVersion()) {
        setHeight(player, event.isSneaking() ? HEIGHT_1_9 : STANDING_HEIGHT);
        if (!useCache)
            return;
        if (event.isSneaking())
            sneaking.put(player, false);
        else
            sneaking.remove(player);
    }
}

Example 8 with UserConnection

use of com.viaversion.viaversion.api.connection.UserConnection in project ViaVersion by ViaVersion.

the class BungeeChannelInitializer method initChannel.

@Override
protected void initChannel(Channel socketChannel) throws Exception {
    if (!socketChannel.isActive()) {
        return;
    }
    UserConnection info = new UserConnectionImpl(socketChannel);
    // init protocol
    new ProtocolPipelineImpl(info);
    // Add originals
    this.method.invoke(this.original, socketChannel);
    // Don't inject if inactive
    if (!socketChannel.isActive())
        return;
    // Don't inject if no packet-encoder
    if (socketChannel.pipeline().get("packet-encoder") == null)
        return;
    // Don't inject if no packet-decoder
    if (socketChannel.pipeline().get("packet-decoder") == null)
        return;
    // Add our transformers
    BungeeEncodeHandler encoder = new BungeeEncodeHandler(info);
    BungeeDecodeHandler decoder = new BungeeDecodeHandler(info);
    socketChannel.pipeline().addBefore("packet-encoder", "via-encoder", encoder);
    socketChannel.pipeline().addBefore("packet-decoder", "via-decoder", decoder);
}

Example 9 with UserConnection

use of com.viaversion.viaversion.api.connection.UserConnection in project ViaVersion by ViaVersion.

the class WorldPackets method register.

public static void register(Protocol protocol) {
    // Outgoing packets
    protocol.registerClientbound(ClientboundPackets1_12_1.SPAWN_PAINTING, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity ID
            map(Type.VAR_INT);
            // 1 - Entity UUID
            map(Type.UUID);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    PaintingProvider provider = Via.getManager().getProviders().get(PaintingProvider.class);
                    String motive = wrapper.read(Type.STRING);
                    Optional<Integer> id = provider.getIntByIdentifier(motive);
                    if (!id.isPresent() && (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug())) {
                        Via.getPlatform().getLogger().warning("Could not find painting motive: " + motive + " falling back to default (0)");
                    }
                    wrapper.write(Type.VAR_INT, id.orElse(0));
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.BLOCK_ENTITY_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Location
            map(Type.POSITION);
            // 1 - Action
            map(Type.UNSIGNED_BYTE);
            // 2 - NBT data
            map(Type.NBT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    Position position = wrapper.get(Type.POSITION, 0);
                    short action = wrapper.get(Type.UNSIGNED_BYTE, 0);
                    CompoundTag tag = wrapper.get(Type.NBT, 0);
                    BlockEntityProvider provider = Via.getManager().getProviders().get(BlockEntityProvider.class);
                    int newId = provider.transform(wrapper.user(), position, tag, true);
                    if (newId != -1) {
                        BlockStorage storage = wrapper.user().get(BlockStorage.class);
                        BlockStorage.ReplacementData replacementData = storage.get(position);
                        if (replacementData != null) {
                            replacementData.setReplacement(newId);
                        }
                    }
                    if (action == 5) {
                        // Set type of flower in flower pot
                        // Removed
                        wrapper.cancel();
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.BLOCK_ACTION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Location
            map(Type.POSITION);
            // Action Id
            map(Type.UNSIGNED_BYTE);
            // Action param
            map(Type.UNSIGNED_BYTE);
            // Block Id - /!\ NOT BLOCK STATE ID
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    Position pos = wrapper.get(Type.POSITION, 0);
                    short action = wrapper.get(Type.UNSIGNED_BYTE, 0);
                    short param = wrapper.get(Type.UNSIGNED_BYTE, 1);
                    int blockId = wrapper.get(Type.VAR_INT, 0);
                    if (blockId == 25)
                        blockId = 73;
                    else if (blockId == 33)
                        blockId = 99;
                    else if (blockId == 29)
                        blockId = 92;
                    else if (blockId == 54)
                        blockId = 142;
                    else if (blockId == 146)
                        blockId = 305;
                    else if (blockId == 130)
                        blockId = 249;
                    else if (blockId == 138)
                        blockId = 257;
                    else if (blockId == 52)
                        blockId = 140;
                    else if (blockId == 209)
                        blockId = 472;
                    else if (blockId >= 219 && blockId <= 234)
                        blockId = blockId - 219 + 483;
                    if (blockId == 73) {
                        // Note block
                        // block change
                        PacketWrapper blockChange = wrapper.create(0x0B);
                        blockChange.write(Type.POSITION, pos);
                        blockChange.write(Type.VAR_INT, 249 + (action * 24 * 2) + (param * 2));
                        blockChange.send(Protocol1_13To1_12_2.class);
                    }
                    wrapper.set(Type.VAR_INT, 0, blockId);
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.BLOCK_CHANGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.POSITION);
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    Position position = wrapper.get(Type.POSITION, 0);
                    int newId = toNewId(wrapper.get(Type.VAR_INT, 0));
                    UserConnection userConnection = wrapper.user();
                    if (Via.getConfig().isServersideBlockConnections()) {
                        ConnectionData.updateBlockStorage(userConnection, position.x(), position.y(), position.z(), newId);
                        newId = ConnectionData.connect(userConnection, position, newId);
                    }
                    wrapper.set(Type.VAR_INT, 0, checkStorage(wrapper.user(), position, newId));
                    if (Via.getConfig().isServersideBlockConnections()) {
                        // Workaround for packet order issue
                        wrapper.send(Protocol1_13To1_12_2.class);
                        wrapper.cancel();
                        ConnectionData.update(userConnection, position);
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.MULTI_BLOCK_CHANGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Chunk X
            map(Type.INT);
            // 1 - Chunk Z
            map(Type.INT);
            // 2 - Records
            map(Type.BLOCK_CHANGE_RECORD_ARRAY);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int chunkX = wrapper.get(Type.INT, 0);
                    int chunkZ = wrapper.get(Type.INT, 1);
                    UserConnection userConnection = wrapper.user();
                    BlockChangeRecord[] records = wrapper.get(Type.BLOCK_CHANGE_RECORD_ARRAY, 0);
                    // Convert ids
                    for (BlockChangeRecord record : records) {
                        int newBlock = toNewId(record.getBlockId());
                        Position position = new Position(record.getSectionX() + (chunkX * 16), record.getY(), record.getSectionZ() + (chunkZ * 16));
                        if (Via.getConfig().isServersideBlockConnections()) {
                            ConnectionData.updateBlockStorage(userConnection, position.x(), position.y(), position.z(), newBlock);
                        }
                        record.setBlockId(checkStorage(wrapper.user(), position, newBlock));
                    }
                    if (Via.getConfig().isServersideBlockConnections()) {
                        for (BlockChangeRecord record : records) {
                            int blockState = record.getBlockId();
                            Position position = new Position(record.getSectionX() + (chunkX * 16), record.getY(), record.getSectionZ() + (chunkZ * 16));
                            ConnectionHandler handler = ConnectionData.getConnectionHandler(blockState);
                            if (handler != null) {
                                blockState = handler.connect(userConnection, position, blockState);
                                record.setBlockId(blockState);
                            }
                        }
                        // Workaround for packet order issue
                        wrapper.send(Protocol1_13To1_12_2.class);
                        wrapper.cancel();
                        for (BlockChangeRecord record : records) {
                            Position position = new Position(record.getSectionX() + (chunkX * 16), record.getY(), record.getSectionZ() + (chunkZ * 16));
                            ConnectionData.update(userConnection, position);
                        }
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.EXPLOSION, new PacketRemapper() {

        @Override
        public void registerMap() {
            if (!Via.getConfig().isServersideBlockConnections())
                return;
            // X
            map(Type.FLOAT);
            // Y
            map(Type.FLOAT);
            // Z
            map(Type.FLOAT);
            // Radius
            map(Type.FLOAT);
            // Record Count
            map(Type.INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    UserConnection userConnection = wrapper.user();
                    int x = (int) Math.floor(wrapper.get(Type.FLOAT, 0));
                    int y = (int) Math.floor(wrapper.get(Type.FLOAT, 1));
                    int z = (int) Math.floor(wrapper.get(Type.FLOAT, 2));
                    int recordCount = wrapper.get(Type.INT, 0);
                    Position[] records = new Position[recordCount];
                    for (int i = 0; i < recordCount; i++) {
                        Position position = new Position(x + wrapper.passthrough(Type.BYTE), (short) (y + wrapper.passthrough(Type.BYTE)), z + wrapper.passthrough(Type.BYTE));
                        records[i] = position;
                        // Set to air
                        ConnectionData.updateBlockStorage(userConnection, position.x(), position.y(), position.z(), 0);
                    }
                    // Workaround for packet order issue
                    wrapper.send(Protocol1_13To1_12_2.class);
                    wrapper.cancel();
                    for (int i = 0; i < recordCount; i++) {
                        ConnectionData.update(userConnection, records[i]);
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.UNLOAD_CHUNK, new PacketRemapper() {

        @Override
        public void registerMap() {
            if (Via.getConfig().isServersideBlockConnections()) {
                handler(new PacketHandler() {

                    @Override
                    public void handle(PacketWrapper wrapper) throws Exception {
                        int x = wrapper.passthrough(Type.INT);
                        int z = wrapper.passthrough(Type.INT);
                        ConnectionData.blockConnectionProvider.unloadChunk(wrapper.user(), x, z);
                    }
                });
            }
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.NAMED_SOUND, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.STRING);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    String sound = wrapper.get(Type.STRING, 0).replace("minecraft:", "");
                    String newSoundId = NamedSoundRewriter.getNewId(sound);
                    wrapper.set(Type.STRING, 0, newSoundId);
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.CHUNK_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
                    BlockStorage storage = wrapper.user().get(BlockStorage.class);
                    Chunk1_9_3_4Type type = new Chunk1_9_3_4Type(clientWorld);
                    Chunk1_13Type type1_13 = new Chunk1_13Type(clientWorld);
                    Chunk chunk = wrapper.read(type);
                    wrapper.write(type1_13, chunk);
                    for (int i = 0; i < chunk.getSections().length; i++) {
                        ChunkSection section = chunk.getSections()[i];
                        if (section == null)
                            continue;
                        for (int p = 0; p < section.getPaletteSize(); p++) {
                            int old = section.getPaletteEntry(p);
                            int newId = toNewId(old);
                            section.setPaletteEntry(p, newId);
                        }
                        boolean willSaveToStorage = false;
                        for (int p = 0; p < section.getPaletteSize(); p++) {
                            int newId = section.getPaletteEntry(p);
                            if (storage.isWelcome(newId)) {
                                willSaveToStorage = true;
                                break;
                            }
                        }
                        boolean willSaveConnection = false;
                        if (Via.getConfig().isServersideBlockConnections() && ConnectionData.needStoreBlocks()) {
                            for (int p = 0; p < section.getPaletteSize(); p++) {
                                int newId = section.getPaletteEntry(p);
                                if (ConnectionData.isWelcome(newId)) {
                                    willSaveConnection = true;
                                    break;
                                }
                            }
                        }
                        if (willSaveToStorage) {
                            for (int y = 0; y < 16; y++) {
                                for (int z = 0; z < 16; z++) {
                                    for (int x = 0; x < 16; x++) {
                                        int block = section.getFlatBlock(x, y, z);
                                        if (storage.isWelcome(block)) {
                                            storage.store(new Position((x + (chunk.getX() << 4)), (short) (y + (i << 4)), (z + (chunk.getZ() << 4))), block);
                                        }
                                    }
                                }
                            }
                        }
                        if (willSaveConnection) {
                            for (int y = 0; y < 16; y++) {
                                for (int z = 0; z < 16; z++) {
                                    for (int x = 0; x < 16; x++) {
                                        int block = section.getFlatBlock(x, y, z);
                                        if (ConnectionData.isWelcome(block)) {
                                            ConnectionData.blockConnectionProvider.storeBlock(wrapper.user(), x + (chunk.getX() << 4), y + (i << 4), z + (chunk.getZ() << 4), block);
                                        }
                                    }
                                }
                            }
                        }
                    }
                    // Rewrite biome id 255 to plains
                    if (chunk.isBiomeData()) {
                        int latestBiomeWarn = Integer.MIN_VALUE;
                        for (int i = 0; i < 256; i++) {
                            int biome = chunk.getBiomeData()[i];
                            if (!VALID_BIOMES.contains(biome)) {
                                if (// is it generated naturally? *shrug*
                                biome != 255 && latestBiomeWarn != biome) {
                                    if (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug()) {
                                        Via.getPlatform().getLogger().warning("Received invalid biome id " + biome);
                                    }
                                    latestBiomeWarn = biome;
                                }
                                // Plains
                                chunk.getBiomeData()[i] = 1;
                            }
                        }
                    }
                    // Rewrite BlockEntities to normal blocks
                    BlockEntityProvider provider = Via.getManager().getProviders().get(BlockEntityProvider.class);
                    final Iterator<CompoundTag> iterator = chunk.getBlockEntities().iterator();
                    while (iterator.hasNext()) {
                        CompoundTag tag = iterator.next();
                        int newId = provider.transform(wrapper.user(), null, tag, false);
                        if (newId != -1) {
                            int x = ((NumberTag) tag.get("x")).asInt();
                            int y = ((NumberTag) tag.get("y")).asInt();
                            int z = ((NumberTag) tag.get("z")).asInt();
                            Position position = new Position(x, (short) y, z);
                            // Store the replacement blocks for blockupdates
                            BlockStorage.ReplacementData replacementData = storage.get(position);
                            if (replacementData != null) {
                                replacementData.setReplacement(newId);
                            }
                            chunk.getSections()[y >> 4].setFlatBlock(x & 0xF, y & 0xF, z & 0xF, newId);
                        }
                        final Tag idTag = tag.get("id");
                        if (idTag instanceof StringTag) {
                            // No longer block entities
                            final String id = ((StringTag) idTag).getValue();
                            if (id.equals("minecraft:noteblock") || id.equals("minecraft:flower_pot")) {
                                iterator.remove();
                            }
                        }
                    }
                    if (Via.getConfig().isServersideBlockConnections()) {
                        ConnectionData.connectBlocks(wrapper.user(), chunk);
                        // Workaround for packet order issue
                        wrapper.send(Protocol1_13To1_12_2.class);
                        wrapper.cancel();
                        for (int i = 0; i < chunk.getSections().length; i++) {
                            ChunkSection section = chunk.getSections()[i];
                            if (section == null)
                                continue;
                            ConnectionData.updateChunkSectionNeighbours(wrapper.user(), chunk.getX(), chunk.getZ(), i);
                        }
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_12_1.SPAWN_PARTICLE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Particle ID
            map(Type.INT);
            // 1 - Long Distance
            map(Type.BOOLEAN);
            // 2 - X
            map(Type.FLOAT);
            // 3 - Y
            map(Type.FLOAT);
            // 4 - Z
            map(Type.FLOAT);
            // 5 - Offset X
            map(Type.FLOAT);
            // 6 - Offset Y
            map(Type.FLOAT);
            // 7 - Offset Z
            map(Type.FLOAT);
            // 8 - Particle Data
            map(Type.FLOAT);
            // 9 - Particle Count
            map(Type.INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int particleId = wrapper.get(Type.INT, 0);
                    // Get the data (Arrays are overrated)
                    int dataCount = 0;
                    // Particles with 1 data [BlockCrack,BlockDust,FallingDust]
                    if (particleId == 37 || particleId == 38 || particleId == 46)
                        dataCount = 1;
                    else // Particles with 2 data [IconCrack]
                    if (particleId == 36)
                        dataCount = 2;
                    Integer[] data = new Integer[dataCount];
                    for (int i = 0; i < data.length; i++) data[i] = wrapper.read(Type.VAR_INT);
                    Particle particle = ParticleRewriter.rewriteParticle(particleId, data);
                    // Cancel if null or completely removed
                    if (particle == null || particle.getId() == -1) {
                        wrapper.cancel();
                        return;
                    }
                    // Handle reddust particle color
                    if (particle.getId() == 11) {
                        int count = wrapper.get(Type.INT, 1);
                        float speed = wrapper.get(Type.FLOAT, 6);
                        // Only handle for count = 0
                        if (count == 0) {
                            wrapper.set(Type.INT, 1, 1);
                            wrapper.set(Type.FLOAT, 6, 0f);
                            List<Particle.ParticleData> arguments = particle.getArguments();
                            for (int i = 0; i < 3; i++) {
                                // RGB values are represented by the X/Y/Z offset
                                float colorValue = wrapper.get(Type.FLOAT, i + 3) * speed;
                                if (colorValue == 0 && i == 0) {
                                    // https://minecraft.gamepedia.com/User:Alphappy/reddust
                                    colorValue = 1;
                                }
                                arguments.get(i).setValue(colorValue);
                                wrapper.set(Type.FLOAT, i + 3, 0f);
                            }
                        }
                    }
                    wrapper.set(Type.INT, 0, particle.getId());
                    for (Particle.ParticleData particleData : particle.getArguments()) wrapper.write(particleData.getType(), particleData.getValue());
                }
            });
        }
    });
}

Example 10 with UserConnection

use of com.viaversion.viaversion.api.connection.UserConnection in project ViaVersion by ViaVersion.

the class VelocityVersionProvider method getFrontProtocol.

private int getFrontProtocol(UserConnection user) throws Exception {
    int playerVersion = user.getProtocolInfo().getProtocolVersion();
    IntStream versions = com.velocitypowered.api.network.ProtocolVersion.SUPPORTED_VERSIONS.stream().mapToInt(com.velocitypowered.api.network.ProtocolVersion::getProtocol);
    // Modern forwarding mode needs 1.13 Login plugin message
    if (VelocityViaInjector.getPlayerInfoForwardingMode != null && ((Enum<?>) VelocityViaInjector.getPlayerInfoForwardingMode.invoke(VelocityPlugin.PROXY.getConfiguration())).name().equals("MODERN")) {
        versions = versions.filter(ver -> ver >= ProtocolVersion.v1_13.getVersion());
    }
    int[] compatibleProtocols = versions.toArray();
    // Bungee supports it
    if (Arrays.binarySearch(compatibleProtocols, playerVersion) >= 0)
        return playerVersion;
    // Older than bungee supports, get the lowest version
    if (playerVersion < compatibleProtocols[0]) {
        return compatibleProtocols[0];
    }
    // This is more of a workaround for snapshot support by bungee.
    for (int i = compatibleProtocols.length - 1; i >= 0; i--) {
        int protocol = compatibleProtocols[i];
        if (playerVersion > protocol && ProtocolVersion.isRegistered(protocol))
            return protocol;
    }
    Via.getPlatform().getLogger().severe("Panic, no protocol id found for " + playerVersion);
    return playerVersion;
}