успешный логин

core/src/main/java/mc/core/network/NetStream.java

@@ -10,7 +10,7 @@ import lombok.Setter;
 public abstract class NetStream {
     @Getter
     @Setter
-    private int expectedSize;
+    private int dataSize;
 
     public abstract boolean readBoolean();
     public abstract byte readByte();
@@ -27,6 +27,7 @@ public abstract class NetStream {
 
     public abstract void writeBoolean(boolean value);
     public abstract void writeByte(int value);
+    public abstract void writeUnsignedByte(int value);
     public abstract void writeBytes(byte[] buffer);
     public abstract void writeShort(int value);
     public abstract void writeInt(int value);

core/src/main/java/mc/core/player/InMemoryPlayerManager.java

@@ -34,6 +34,7 @@ public class InMemoryPlayerManager implements PlayerManager, Runnable {
     public Player createPlayer(String name, Location defaultLocation, Look defaultLook) {
         SimplePlayer player = new SimplePlayer();
         player.setId(rand.nextInt(10000));
+        player.setUUID(UUID.nameUUIDFromBytes(name.getBytes()));
         player.setName(name);
         player.getLocation().set(defaultLocation);
         player.getLook().set(defaultLook);

core/src/main/java/mc/core/player/Player.java

@@ -7,8 +7,11 @@ package mc.core.player;
 import mc.core.Location;
 import mc.core.network.NetChannel;
 
+import java.util.UUID;
+
 public interface Player {
     int getId();
+    UUID getUUID();
     String getName();
     boolean isOnline();
 

core/src/main/java/mc/core/player/PlayerMode.java

@@ -11,7 +11,9 @@ import lombok.RequiredArgsConstructor;
 @Getter
 public enum PlayerMode {
     SURVIVAL(0),
-    CREATIVE(1);
+    CREATIVE(1),
+    ADVENTURE(2),
+    SPECTATOR(3);
 
     private final int id;
 }

core/src/main/java/mc/core/player/SimplePlayer.java

@@ -8,9 +8,12 @@ import lombok.Data;
 import mc.core.Location;
 import mc.core.network.NetChannel;
 
+import java.util.UUID;
+
 @Data
 public class SimplePlayer implements Player {
     private int id;
+    private UUID uuid;
     private String name;
     private boolean online = false;
     private NetChannel channel;
@@ -25,4 +28,13 @@ public class SimplePlayer implements Player {
     public void setLook(Look look) {
         this.look.set(look);
     }
+
+    @Override
+    public UUID getUUID() {
+        return uuid;
+    }
+
+    public void setUUID(UUID uuid) {
+        this.uuid = uuid;
+    }
 }

proto125/src/main/java/mc/core/network/proto_125/NetStream_p125.java

@@ -52,4 +52,9 @@ public abstract class NetStream_p125 extends NetStream {
     public long readLong() {
         return 0; //FIXME
     }
+
+    @Override
+    public void writeUnsignedByte(int value) {
+        writeByte(value); //FIXME
+    }
 }

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/ByteArrayOutputNetStream.java

@@ -69,6 +69,11 @@ public class ByteArrayOutputNetStream extends NetStream_p340 {
         baos.write(value);
     }
 
+    @Override
+    public void writeUnsignedByte(int value) {
+        baos.write((byte)(value & 0xFF));
+    }
+
     @Override
     public void writeBytes(byte[] buffer) {
         baos.write(buffer, 0, buffer.length);

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java

@@ -19,26 +19,41 @@ public enum State {
     UNKNOWN(-1, null, null),
     HANDSHAKE(0,
             ImmutableBiMap.<Integer, Class<? extends CSPacket>>builder()
-                    .put(0, HandshakePacket.class)
+                    .put(0x00, HandshakePacket.class)
                     .build(),
             null
     ),
     STATUS(1,
             ImmutableBiMap.<Integer, Class<? extends CSPacket>>builder()
-                    .put(0, StatusRequestPacket.class)
+                    .put(0x00, StatusRequestPacket.class)
-                    .put(1, PingPacket.class)
+                    .put(0x01, PingPacket.class)
                     .build(),
             ImmutableBiMap.<Class<? extends SCPacket>, Integer>builder()
-                    .put(StatusResponsePacket.class, 0)
+                    .put(StatusResponsePacket.class, 0x00)
-                    .put(PingPacket.class, 1)
+                    .put(PingPacket.class, 0x01)
                     .build()
     ),
     LOGIN(2,
             ImmutableBiMap.<Integer, Class<? extends CSPacket>>builder()
-                    .put(0, LoginStartPacket.class)
+                    .put(0x00, LoginStartPacket.class)
                     .build(),
             ImmutableBiMap.<Class<? extends SCPacket>, Integer>builder()
-                    .put(DisconnectPacket.class, 0)
+                    .put(DisconnectPacket.class, 0x00)
+                    .put(LoginSuccessPacket.class, 0x02)
+                    .build()
+    ),
+    PLAY(3,
+            ImmutableBiMap.<Integer, Class<? extends CSPacket>>builder()
+                    .put(0x00, TeleportConfirmPacket.class)
+                    .put(0x04, ClientSettingsPacket.class)
+                    .put(0x09, PluginMessagePacket.class)
+                    .build(),
+            ImmutableBiMap.<Class<? extends SCPacket>, Integer>builder()
+                    .put(PluginMessagePacket.class, 0x18)
+                    .put(JoinGamePacket.class, 0x23)
+                    .put(SpawnPositionPacket.class, 0x46)
+                    .put(PlayerAbilitiesPacket.class, 0x2C)
+                    .put(PlayerPositionAndLookPacket.class, 0x2F)
                     .build()
     );
 
@@ -46,6 +61,7 @@ public enum State {
         if (id == 0) return HANDSHAKE;
         else if (id == 1) return STATUS;
         else if (id == 2) return LOGIN;
+        else if (id == 3) return PLAY;
         else {
             log.warn("Unknown state: {}", id);
             return UNKNOWN;

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/ClientSettingsPacket.java

@@ -0,0 +1,48 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.core.network.CSPacket;
+import mc.core.network.NetStream;
+
+@NoArgsConstructor
+@Getter
+@ToString
+public class ClientSettingsPacket implements CSPacket {
+    private String locale;
+    private int viewDistance;
+    private int chatMode;
+    private boolean chatColors;
+    private boolean capeEnabled,
+                    jacketEnabled,
+                    leftSleeveEnabled,
+                    rightSleeveEnabled,
+                    leftPantsLegEnabled,
+                    rightPantsLegEnabled,
+                    hatEnabled;
+    private int mainHand;
+
+    @Override
+    public void readSelf(NetStream netStream) {
+        locale = netStream.readString();
+        viewDistance = netStream.readByte();
+        chatMode = netStream.readVarInt();
+        chatColors = netStream.readBoolean();
+
+        int bitmask = netStream.readUnsignedByte();
+        capeEnabled = (bitmask & 0x01) > 0;
+        jacketEnabled = (bitmask & 0x02) > 0;
+        leftSleeveEnabled = (bitmask & 0x04) > 0;
+        rightSleeveEnabled = (bitmask & 0x08) > 0;
+        leftPantsLegEnabled = (bitmask & 0x10) > 0;
+        rightPantsLegEnabled = (bitmask & 0x20) > 0;
+        hatEnabled = (bitmask & 0x40) > 0;
+
+        mainHand = netStream.readVarInt();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/DisconnectPacket.java

@@ -9,7 +9,7 @@ import lombok.NoArgsConstructor;
 import lombok.Setter;
 import mc.core.network.SCPacket;
 import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
-import mc.core.network.proto_1_12_2.TextSerializer;
+import mc.core.network.proto_1_12_2.serializers.TextSerializer;
 import mc.core.text.Text;
 
 @AllArgsConstructor

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/JoinGamePacket.java

@@ -0,0 +1,36 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
+import mc.core.player.PlayerMode;
+
+@NoArgsConstructor
+@Setter
+public class JoinGamePacket implements SCPacket {
+    private int entityId;
+    private PlayerMode mode;
+    private int dimension;
+    private int difficulty;
+    private String levelType;
+
+    @Override
+    public byte[] toByteArray() {
+        ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
+
+        netStream.writeInt(entityId);
+        netStream.writeUnsignedByte(mode.getId());
+        netStream.writeInt(dimension);
+        netStream.writeUnsignedByte(difficulty);
+        netStream.writeUnsignedByte(0); // Max Players, unused
+        netStream.writeString(levelType);
+        netStream.writeBoolean(false); // Reduced Debug Info
+
+        return netStream.toByteArray();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/LoginSuccessPacket.java

@@ -0,0 +1,31 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.AllArgsConstructor;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
+
+import java.util.UUID;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Setter
+public class LoginSuccessPacket implements SCPacket {
+    private UUID uuid;
+    private String playerName;
+
+    @Override
+    public byte[] toByteArray() {
+        ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
+
+        netStream.writeString(uuid.toString());
+        netStream.writeString(playerName);
+
+        return netStream.toByteArray();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/PlayerAbilitiesPacket.java

@@ -0,0 +1,38 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
+
+@NoArgsConstructor
+@Setter
+public class PlayerAbilitiesPacket implements SCPacket {
+    private boolean godMode = false;
+    private boolean flying = false;
+    private boolean canFly = false;
+    private boolean instantDestroyBlocks = false;
+    private float flyingSpeed = 0.05f;
+    private float fieldOfView = flyingSpeed;
+
+    @Override
+    public byte[] toByteArray() {
+        ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
+
+        byte flag = 0;
+        if (godMode) flag = (byte)(flag | 0x01);
+        if (flying)  flag = (byte)(flag | 0x02);
+        if (canFly)  flag = (byte)(flag | 0x04);
+        if (instantDestroyBlocks) flag = (byte)(flag | 0x08);
+
+        netStream.writeByte(flag);
+        netStream.writeFloat(flyingSpeed);
+        netStream.writeFloat(fieldOfView);
+
+        return netStream.toByteArray();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/PlayerPositionAndLookPacket.java

@@ -0,0 +1,43 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import mc.core.Location;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
+import mc.core.player.Look;
+
+import java.util.Random;
+
+@NoArgsConstructor
+@Setter
+public class PlayerPositionAndLookPacket implements SCPacket {
+    private static Random RANDOM = new Random();
+    private Location location;
+    private Look look;
+
+    @Override
+    public byte[] toByteArray() {
+        ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
+
+        netStream.writeDouble(location.getX());
+        netStream.writeDouble(location.getY());
+        netStream.writeDouble(location.getZ());
+        netStream.writeFloat(look.getYaw());
+        netStream.writeFloat(look.getPitch());
+        netStream.writeByte(0); //  It's a bitfield, X/Y/Z/Y_ROT/X_ROT. If X is set, the x value is relative and not absolute.
+        /* X - 0x01
+         * Y - 0x02
+         * Z - 0x04
+         * Y_ROT - 0x08
+         * X_ROT - 0x10
+         */
+        netStream.writeVarInt(RANDOM.nextInt()); // Client should confirm this packet with Teleport Confirm containing the same Teleport ID
+
+        return netStream.toByteArray();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/PluginMessagePacket.java

@@ -0,0 +1,38 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.*;
+import mc.core.network.CSPacket;
+import mc.core.network.NetStream;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter
+@Setter
+@ToString
+public class PluginMessagePacket implements SCPacket, CSPacket {
+    private String channelName;
+    private byte[] data;
+
+    @Override
+    public void readSelf(NetStream netStream) {
+        channelName = netStream.readString();
+        data = new byte[netStream.getDataSize() - channelName.getBytes().length - 1];
+        netStream.readBytes(data);
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
+
+        netStream.writeString(channelName);
+        netStream.writeBytes(data);
+
+        return netStream.toByteArray();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/SpawnPositionPacket.java

@@ -0,0 +1,27 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.AllArgsConstructor;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import mc.core.Location;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
+import mc.core.network.proto_1_12_2.serializers.LocationSerializer;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Setter
+public class SpawnPositionPacket implements SCPacket {
+    private Location location;
+
+    @Override
+    public byte[] toByteArray() {
+        ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
+        netStream.writeLong(LocationSerializer.serialize(location));
+        return netStream.toByteArray();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/TeleportConfirmPacket.java

@@ -0,0 +1,21 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-12
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.Getter;
+import lombok.ToString;
+import mc.core.network.CSPacket;
+import mc.core.network.NetStream;
+
+@Getter
+@ToString
+public class TeleportConfirmPacket implements CSPacket {
+    private int teleportId;
+
+    @Override
+    public void readSelf(NetStream netStream) {
+        teleportId = netStream.readVarInt();
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/serializers/LocationSerializer.java

@@ -0,0 +1,27 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-11
+ */
+package mc.core.network.proto_1_12_2.serializers;
+
+import mc.core.Location;
+
+public class LocationSerializer {
+    private static int floor_double(double value) {
+        int i = (int)value;
+        return value < (double)i ? i - 1 : i;
+    }
+
+    public static long serialize(Location location) {
+        return ((floor_double(location.getX()) & 0x3FFFFFF) << 38)
+                | ((floor_double(location.getY()) & 0xFFF) << 26)
+                | (floor_double(location.getZ()) & 0x3FFFFFF);
+    }
+
+    public static Location deserialize(long location) {
+        return new Location(
+                location >> 38,
+                (location >> 26) & 0xFFF,
+                location << 38 >> 38);
+    }
+}

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/serializers/TextSerializer.java

@@ -2,7 +2,7 @@
  * DmitriyMX <dimon550@gmail.com>
  * 2018-06-11
  */
-package mc.core.network.proto_1_12_2;
+package mc.core.network.proto_1_12_2.serializers;
 
 import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;

proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/PacketDecoder.java

@@ -51,6 +51,7 @@ public class PacketDecoder extends ByteToMessageDecoder {
             log.warn("Unknown packet: {}:{}", state.name(), packetId);
             in.skipBytes(packetSize - rb);
         } else {
+            netStream.setDataSize(packetSize - rb);
             CSPacket packet = packetClass.newInstance();
             packet.readSelf(netStream);
             log.debug("Known packet: {}:{}", state.name(), packet.toString());

proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/PacketHandler.java

@@ -5,6 +5,7 @@
 package mc.core.network.proto_1_12_2.netty;
 
 import io.netty.channel.Channel;
+import io.netty.channel.ChannelFutureListener;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.util.AttributeKey;
@@ -14,11 +15,12 @@ import mc.core.chat.ChatProcessor;
 import mc.core.network.CSPacket;
 import mc.core.network.proto_1_12_2.State;
 import mc.core.network.proto_1_12_2.packets.*;
+import mc.core.player.Look;
 import mc.core.player.Player;
 import mc.core.player.PlayerManager;
+import mc.core.player.PlayerMode;
 import mc.core.text.Text;
 import mc.core.text.TextColor;
-import mc.core.text.TextStyle;
 import mc.core.world.World;
 import org.springframework.beans.factory.annotation.Autowired;
 
@@ -92,6 +94,56 @@ public class PacketHandler extends SimpleChannelInboundHandler<CSPacket> {
 
     private void onLoginStart(Channel channel, LoginStartPacket packet) {
         if (!channel.attr(ATTR_STATE).get().equals(State.LOGIN)) return;
-        channel.writeAndFlush(new DisconnectPacket(Text.of("Server is not ready :(", null, TextStyle.ITALIC)));
+
+        Optional<Player> optPlayer = playerManager.getPlayer(packet.getPlayerName());
+        if (optPlayer.isPresent() && optPlayer.get().isOnline()) {
+            channel.writeAndFlush(new DisconnectPacket(
+                    Text.builder("Player \"")
+                            .append(Text.of(packet.getPlayerName(), TextColor.YELLOW))
+                            .append(Text.of("\" is online", TextColor.WHITE))
+                            .build()))
+                    .addListener(ChannelFutureListener.CLOSE);
+        } else {
+            Player player = playerManager.getPlayer(packet.getPlayerName())
+                    .orElseGet(() -> playerManager.createPlayer(
+                            packet.getPlayerName(),
+                            world.getSpawn(),
+                            new Look(0f, 0f)));
+
+            channel.writeAndFlush(new LoginSuccessPacket(
+                    player.getUUID(),
+                    packet.getPlayerName()));
+            channel.attr(ATTR_PLAYER).set(player);
+            channel.attr(ATTR_STATE).set(State.PLAY);
+
+            // Join Game
+            JoinGamePacket pkt1 = new JoinGamePacket();
+            pkt1.setEntityId(player.getId());
+            pkt1.setMode(PlayerMode.CREATIVE);
+            pkt1.setDimension(0/*Overworld*/);
+            pkt1.setDifficulty(0/*Peaceful*/);
+            pkt1.setLevelType("flat");
+            channel.write(pkt1);
+
+            // Spawn Position
+            SpawnPositionPacket pkt2 = new SpawnPositionPacket();
+            pkt2.setLocation(world.getSpawn());
+            channel.write(pkt2);
+
+            // Player Abilities
+            PlayerAbilitiesPacket pkt3 = new PlayerAbilitiesPacket();
+            pkt3.setCanFly(true);
+            pkt3.setFlying(true);
+            pkt3.setGodMode(true);
+            pkt3.setInstantDestroyBlocks(true);
+            channel.write(pkt2);
+            channel.flush();
+
+            // Player Position And Look
+            PlayerPositionAndLookPacket pkt4 = new PlayerPositionAndLookPacket();
+            pkt4.setLocation(player.getLocation());
+            pkt4.setLook(player.getLook());
+            channel.writeAndFlush(pkt4);
+        }
     }
 }

proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/wrappers/WrapperNetStream.java

@@ -74,6 +74,11 @@ public class WrapperNetStream extends NetStream_p340 {
         byteBuf.writeByte(value);
     }
 
+    @Override
+    public void writeUnsignedByte(int value) {
+        byteBuf.writeByte((byte)(value & 0xFF));
+    }
+
     @Override
     public void writeBytes(byte[] buffer) {
         byteBuf.writeBytes(buffer);