AdlC/PicoLimbo
AdlC/PicoLimbo
1
0
Fork 0
mirror of https://github.com/Nan1t/NanoLimbo.git synced 2025-07-14 13:20:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

Reformatted packet handling. Moved packet snapshot in separated class

Browse Source
This commit is contained in:
Nanit 2022-02-07 18:10:40 +02:00
parent 6aea0392d4
commit 9269751ed1
11 changed files with 409 additions and 274 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/main/java/ru/nanit/limbo/connection/ClientChannelInitializer.java
View File

@ -43,6 +43,7 @@ public class ClientChannelInitializer extends ChannelInitializer<Channel> {
PacketDecoder decoder = new PacketDecoder();
PacketEncoder encoder = new PacketEncoder();
ClientConnection connection = new ClientConnection(channel, server, decoder, encoder);
pipeline.addLast("timeout", new ReadTimeoutHandler(server.getConfig().getReadTimeout(),
TimeUnit.MILLISECONDS));
@ -50,7 +51,7 @@ public class ClientChannelInitializer extends ChannelInitializer<Channel> {
pipeline.addLast("frame_encoder", new VarIntLengthEncoder());
pipeline.addLast("decoder", decoder);
pipeline.addLast("encoder", encoder);
pipeline.addLast("handler", new ClientConnection(channel, server, decoder, encoder));
pipeline.addLast("handler", connection);
}
}

323
src/main/java/ru/nanit/limbo/connection/ClientConnection.java
View File

@ -21,26 +21,20 @@ import com.grack.nanojson.JsonArray;
import com.grack.nanojson.JsonObject;
import com.grack.nanojson.JsonParser;
import com.grack.nanojson.JsonParserException;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import ru.nanit.limbo.LimboConstants;
import org.jetbrains.annotations.NotNull;
import ru.nanit.limbo.connection.pipeline.PacketDecoder;
import ru.nanit.limbo.connection.pipeline.PacketEncoder;
import ru.nanit.limbo.protocol.ByteMessage;
import ru.nanit.limbo.protocol.PacketSnapshot;
import ru.nanit.limbo.protocol.packets.PacketHandshake;
import ru.nanit.limbo.protocol.Packet;
import ru.nanit.limbo.protocol.packets.login.*;
import ru.nanit.limbo.protocol.packets.play.*;
import ru.nanit.limbo.protocol.packets.status.PacketStatusPing;
import ru.nanit.limbo.protocol.packets.status.PacketStatusRequest;
import ru.nanit.limbo.protocol.packets.status.PacketStatusResponse;
import ru.nanit.limbo.protocol.registry.State;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
import ru.nanit.limbo.server.data.Title;
import ru.nanit.limbo.server.Logger;
import ru.nanit.limbo.util.UuidUtil;
@ -50,31 +44,11 @@ import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.security.InvalidKeyException;
import java.security.MessageDigest;
import java.util.Collections;
import java.util.UUID;
import java.util.concurrent.ThreadLocalRandom;
public class ClientConnection extends ChannelInboundHandlerAdapter {
private static PacketSnapshot PACKET_LOGIN_SUCCESS;
private static PacketSnapshot PACKET_JOIN_GAME;
private static PacketSnapshot PACKET_PLUGIN_MESSAGE;
private static PacketSnapshot PACKET_PLAYER_ABILITIES;
private static PacketSnapshot PACKET_PLAYER_INFO;
private static PacketSnapshot PACKET_DECLARE_COMMANDS;
private static PacketSnapshot PACKET_PLAYER_POS;
private static PacketSnapshot PACKET_JOIN_MESSAGE;
private static PacketSnapshot PACKET_BOSS_BAR;
private static PacketSnapshot PACKET_HEADER_AND_FOOTER;
private static PacketSnapshot PACKET_TITLE_TITLE;
private static PacketSnapshot PACKET_TITLE_SUBTITLE;
private static PacketSnapshot PACKET_TITLE_TIMES;
private static PacketSnapshot PACKET_TITLE_LEGACY_TITLE;
private static PacketSnapshot PACKET_TITLE_LEGACY_SUBTITLE;
private static PacketSnapshot PACKET_TITLE_LEGACY_TIMES;
private final LimboServer server;
private final Channel channel;
private final GameProfile gameProfile;
@ -113,8 +87,12 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
return clientVersion;
}
public GameProfile getGameProfile() {
return gameProfile;
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
public void channelInactive(@NotNull ChannelHandlerContext ctx) throws Exception {
if (state.equals(State.PLAY)) {
server.getConnections().removeConnection(this);
}
@ -129,139 +107,52 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
public void channelRead(@NotNull ChannelHandlerContext ctx, @NotNull Object msg) {
handlePacket(msg);
}
public void handlePacket(Object packet) {
if (packet instanceof PacketHandshake) {
PacketHandshake handshake = (PacketHandshake) packet;
clientVersion = handshake.getVersion();
updateStateAndVersion(handshake.getNextState(), clientVersion);
Logger.debug("Pinged from %s [%s]", address, clientVersion.toString());
if (server.getConfig().getInfoForwarding().isLegacy()) {
String[] split = handshake.getHost().split("\00");
if (split.length == 3 || split.length == 4) {
setAddress(split[1]);
gameProfile.setUuid(UuidUtil.fromString(split[2]));
} else {
disconnectLogin("You've enabled player info forwarding. You need to connect with proxy");
}
} else if (server.getConfig().getInfoForwarding().isBungeeGuard()) {
if (!checkBungeeGuardHandshake(handshake.getHost())) {
disconnectLogin("Invalid BungeeGuard token or handshake format");
}
}
return;
}
if (packet instanceof PacketStatusRequest) {
sendPacket(new PacketStatusResponse(server));
return;
}
if (packet instanceof PacketStatusPing) {
sendPacketAndClose(packet);
return;
}
if (packet instanceof PacketLoginStart) {
if (server.getConfig().getMaxPlayers() > 0 &&
server.getConnections().getCount() >= server.getConfig().getMaxPlayers()) {
disconnectLogin("Too many players connected");
return;
}
if (!clientVersion.isSupported()) {
disconnectLogin("Unsupported client version");
return;
}
if (server.getConfig().getInfoForwarding().isModern()) {
velocityLoginMessageId = ThreadLocalRandom.current().nextInt(0, Integer.MAX_VALUE);
PacketLoginPluginRequest request = new PacketLoginPluginRequest();
request.setMessageId(velocityLoginMessageId);
request.setChannel(LimboConstants.VELOCITY_INFO_CHANNEL);
request.setData(Unpooled.EMPTY_BUFFER);
sendPacket(request);
return;
}
if (!server.getConfig().getInfoForwarding().isModern()) {
gameProfile.setUsername(((PacketLoginStart)packet).getUsername());
gameProfile.setUuid(UuidUtil.getOfflineModeUuid(getUsername()));
}
fireLoginSuccess();
return;
}
if (packet instanceof PacketLoginPluginResponse) {
PacketLoginPluginResponse response = (PacketLoginPluginResponse) packet;
if (server.getConfig().getInfoForwarding().isModern()
&& response.getMessageId() == velocityLoginMessageId) {
if (!response.isSuccessful() || response.getData() == null) {
disconnectLogin("You need to connect with Velocity");
return;
}
if (!checkVelocityKeyIntegrity(response.getData())) {
disconnectLogin("Can't verify forwarded player info");
return;
}
// Order is important
setAddress(response.getData().readString());
gameProfile.setUuid(response.getData().readUuid());
gameProfile.setUsername(response.getData().readString());
fireLoginSuccess();
}
if (packet instanceof Packet) {
((Packet)packet).handle(this, server);
}
}
private void fireLoginSuccess() {
public void fireLoginSuccess() {
if (server.getConfig().getInfoForwarding().isModern() && velocityLoginMessageId == -1) {
disconnectLogin("You need to connect with Velocity");
return;
}
writePacket(PACKET_LOGIN_SUCCESS);
setPlayState();
writePacket(PacketSnapshots.PACKET_LOGIN_SUCCESS);
updateState(State.PLAY);
server.getConnections().addConnection(this);
writePacket(PACKET_JOIN_GAME);
writePacket(PACKET_PLAYER_ABILITIES);
writePacket(PACKET_PLAYER_POS);
writePacket(PacketSnapshots.PACKET_JOIN_GAME);
writePacket(PacketSnapshots.PACKET_PLAYER_ABILITIES);
writePacket(PacketSnapshots.PACKET_PLAYER_POS);
if (server.getConfig().isUsePlayerList() || clientVersion.equals(Version.V1_16_4))
writePacket(PACKET_PLAYER_INFO);
writePacket(PacketSnapshots.PACKET_PLAYER_INFO);
if (clientVersion.moreOrEqual(Version.V1_13)) {
writePacket(PACKET_DECLARE_COMMANDS);
writePacket(PacketSnapshots.PACKET_DECLARE_COMMANDS);
if (PACKET_PLUGIN_MESSAGE != null)
writePacket(PACKET_PLUGIN_MESSAGE);
if (PacketSnapshots.PACKET_PLUGIN_MESSAGE != null)
writePacket(PacketSnapshots.PACKET_PLUGIN_MESSAGE);
}
if (PACKET_BOSS_BAR != null && clientVersion.moreOrEqual(Version.V1_9))
writePacket(PACKET_BOSS_BAR);
if (PacketSnapshots.PACKET_BOSS_BAR != null && clientVersion.moreOrEqual(Version.V1_9))
writePacket(PacketSnapshots.PACKET_BOSS_BAR);
if (PACKET_JOIN_MESSAGE != null)
writePacket(PACKET_JOIN_MESSAGE);
if (PacketSnapshots.PACKET_JOIN_MESSAGE != null)
writePacket(PacketSnapshots.PACKET_JOIN_MESSAGE);
if (PACKET_TITLE_TITLE != null)
if (PacketSnapshots.PACKET_TITLE_TITLE != null)
writeTitle();
if (PACKET_HEADER_AND_FOOTER != null)
writePacket(PACKET_HEADER_AND_FOOTER);
if (PacketSnapshots.PACKET_HEADER_AND_FOOTER != null)
writePacket(PacketSnapshots.PACKET_HEADER_AND_FOOTER);
sendKeepAlive();
}
@ -276,13 +167,13 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
public void writeTitle() {
if (clientVersion.moreOrEqual(Version.V1_17)) {
writePacket(PACKET_TITLE_TITLE);
writePacket(PACKET_TITLE_SUBTITLE);
writePacket(PACKET_TITLE_TIMES);
writePacket(PacketSnapshots.PACKET_TITLE_TITLE);
writePacket(PacketSnapshots.PACKET_TITLE_SUBTITLE);
writePacket(PacketSnapshots.PACKET_TITLE_TIMES);
} else {
writePacket(PACKET_TITLE_LEGACY_TITLE);
writePacket(PACKET_TITLE_LEGACY_SUBTITLE);
writePacket(PACKET_TITLE_LEGACY_TIMES);
writePacket(PacketSnapshots.PACKET_TITLE_LEGACY_TITLE);
writePacket(PacketSnapshots.PACKET_TITLE_LEGACY_SUBTITLE);
writePacket(PacketSnapshots.PACKET_TITLE_LEGACY_TIMES);
}
}
@ -313,25 +204,23 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
return channel.isActive();
}
private void setPlayState() {
this.state = State.PLAY;
decoder.updateState(this.state);
encoder.updateState(this.state);
}
public void updateStateAndVersion(State state, Version version) {
public void updateState(State state) {
this.state = state;
decoder.updateVersion(version);
decoder.updateState(state);
encoder.updateVersion(version);
encoder.updateState(state);
}
private void setAddress(String host) {
public void updateVersion(Version version) {
clientVersion = version;
decoder.updateVersion(version);
encoder.updateVersion(version);
}
public void setAddress(String host) {
this.address = new InetSocketAddress(host, ((InetSocketAddress)this.address).getPort());
}
private boolean checkBungeeGuardHandshake(String handshake) {
boolean checkBungeeGuardHandshake(String handshake) {
String[] split = handshake.split("\00");
if (split.length != 4)
@ -370,7 +259,15 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
return true;
}
private boolean checkVelocityKeyIntegrity(ByteMessage buf) {
int getVelocityLoginMessageId() {
return velocityLoginMessageId;
}
void setVelocityLoginMessageId(int velocityLoginMessageId) {
this.velocityLoginMessageId = velocityLoginMessageId;
}
boolean checkVelocityKeyIntegrity(ByteMessage buf) {
byte[] signature = new byte[32];
buf.readBytes(signature);
byte[] data = new byte[buf.readableBytes()];
@ -389,122 +286,4 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
throw new IllegalStateException("Unsupported forwarding version " + version + ", wanted " + '\001');
return true;
}
public static void initPackets(LimboServer server) {
final String username = server.getConfig().getPingData().getVersion();
final UUID uuid = UuidUtil.getOfflineModeUuid(username);
PacketLoginSuccess loginSuccess = new PacketLoginSuccess();
loginSuccess.setUsername(username);
loginSuccess.setUuid(uuid);
PacketJoinGame joinGame = new PacketJoinGame();
joinGame.setEntityId(0);
joinGame.setEnableRespawnScreen(true);
joinGame.setFlat(false);
joinGame.setGameMode(server.getConfig().getGameMode());
joinGame.setHardcore(false);
joinGame.setMaxPlayers(server.getConfig().getMaxPlayers());
joinGame.setPreviousGameMode(-1);
joinGame.setReducedDebugInfo(true);
joinGame.setDebug(false);
joinGame.setViewDistance(0);
joinGame.setWorldName("minecraft:world");
joinGame.setWorldNames("minecraft:world");
joinGame.setHashedSeed(0);
joinGame.setDimensionRegistry(server.getDimensionRegistry());
PacketPlayerAbilities playerAbilities = new PacketPlayerAbilities();
playerAbilities.setFlyingSpeed(0.0F);
playerAbilities.setFlags(0x02);
playerAbilities.setFieldOfView(0.1F);
PacketPlayerPositionAndLook positionAndLook = new PacketPlayerPositionAndLook();
positionAndLook.setX(server.getConfig().getSpawnPosition().getX());
positionAndLook.setY(server.getConfig().getSpawnPosition().getY());
positionAndLook.setZ(server.getConfig().getSpawnPosition().getZ());
positionAndLook.setYaw(server.getConfig().getSpawnPosition().getYaw());
positionAndLook.setPitch(server.getConfig().getSpawnPosition().getPitch());
positionAndLook.setTeleportId(ThreadLocalRandom.current().nextInt());
PacketDeclareCommands declareCommands = new PacketDeclareCommands();
declareCommands.setCommands(Collections.emptyList());
PacketPlayerInfo info = new PacketPlayerInfo();
info.setUsername(server.getConfig().getPlayerListUsername());
info.setGameMode(server.getConfig().getGameMode());
info.setUuid(uuid);
PACKET_LOGIN_SUCCESS = PacketSnapshot.of(loginSuccess);
PACKET_JOIN_GAME = PacketSnapshot.of(joinGame);
PACKET_PLAYER_ABILITIES = PacketSnapshot.of(playerAbilities);
PACKET_PLAYER_POS = PacketSnapshot.of(positionAndLook);
PACKET_PLAYER_INFO = PacketSnapshot.of(info);
PACKET_DECLARE_COMMANDS = PacketSnapshot.of(declareCommands);
if (server.getConfig().isUseHeaderAndFooter()) {
PacketPlayerListHeader header = new PacketPlayerListHeader();
header.setHeader(server.getConfig().getPlayerListHeader());
header.setFooter(server.getConfig().getPlayerListFooter());
PACKET_HEADER_AND_FOOTER = PacketSnapshot.of(header);
}
if (server.getConfig().isUseBrandName()){
PacketPluginMessage pluginMessage = new PacketPluginMessage();
pluginMessage.setChannel(LimboConstants.BRAND_CHANNEL);
pluginMessage.setMessage(server.getConfig().getBrandName());
PACKET_PLUGIN_MESSAGE = PacketSnapshot.of(pluginMessage);
}
if (server.getConfig().isUseJoinMessage()) {
PacketChatMessage joinMessage = new PacketChatMessage();
joinMessage.setJsonData(server.getConfig().getJoinMessage());
joinMessage.setPosition(PacketChatMessage.Position.CHAT);
joinMessage.setSender(UUID.randomUUID());
PACKET_JOIN_MESSAGE = PacketSnapshot.of(joinMessage);
}
if (server.getConfig().isUseBossBar()) {
PacketBossBar bossBar = new PacketBossBar();
bossBar.setBossBar(server.getConfig().getBossBar());
bossBar.setUuid(UUID.randomUUID());
PACKET_BOSS_BAR = PacketSnapshot.of(bossBar);
}
if (server.getConfig().isUseTitle()) {
Title title = server.getConfig().getTitle();
PacketTitleSetTitle packetTitle = new PacketTitleSetTitle();
PacketTitleSetSubTitle packetSubtitle = new PacketTitleSetSubTitle();
PacketTitleTimes packetTimes = new PacketTitleTimes();
PacketTitleLegacy legacyTitle = new PacketTitleLegacy();
PacketTitleLegacy legacySubtitle = new PacketTitleLegacy();
PacketTitleLegacy legacyTimes = new PacketTitleLegacy();
packetTitle.setTitle(title.getTitle());
packetSubtitle.setSubtitle(title.getSubtitle());
packetTimes.setFadeIn(title.getFadeIn());
packetTimes.setStay(title.getStay());
packetTimes.setFadeOut(title.getFadeOut());
legacyTitle.setTitle(title);
legacyTitle.setAction(PacketTitleLegacy.Action.SET_TITLE);
legacySubtitle.setTitle(title);
legacySubtitle.setAction(PacketTitleLegacy.Action.SET_SUBTITLE);
legacyTimes.setTitle(title);
legacyTimes.setAction(PacketTitleLegacy.Action.SET_TIMES_AND_DISPLAY);
PACKET_TITLE_TITLE = PacketSnapshot.of(packetTitle);
PACKET_TITLE_SUBTITLE = PacketSnapshot.of(packetSubtitle);
PACKET_TITLE_TIMES = PacketSnapshot.of(packetTimes);
PACKET_TITLE_LEGACY_TITLE = PacketSnapshot.of(legacyTitle);
PACKET_TITLE_LEGACY_SUBTITLE = PacketSnapshot.of(legacySubtitle);
PACKET_TITLE_LEGACY_TIMES = PacketSnapshot.of(legacyTimes);
}
}
}

129
src/main/java/ru/nanit/limbo/connection/PacketHandler.java Normal file
View File

@ -0,0 +1,129 @@
/*
* Copyright (C) 2020 Nan1t
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package ru.nanit.limbo.connection;
import io.netty.buffer.Unpooled;
import ru.nanit.limbo.LimboConstants;
import ru.nanit.limbo.protocol.packets.PacketHandshake;
import ru.nanit.limbo.protocol.packets.login.PacketLoginPluginRequest;
import ru.nanit.limbo.protocol.packets.login.PacketLoginPluginResponse;
import ru.nanit.limbo.protocol.packets.login.PacketLoginStart;
import ru.nanit.limbo.protocol.packets.status.PacketStatusPing;
import ru.nanit.limbo.protocol.packets.status.PacketStatusRequest;
import ru.nanit.limbo.server.LimboServer;
import ru.nanit.limbo.server.Logger;
import ru.nanit.limbo.util.UuidUtil;
import java.util.concurrent.ThreadLocalRandom;
public class PacketHandler {
private final LimboServer server;
public PacketHandler(LimboServer server) {
this.server = server;
}
public void handle(ClientConnection conn, PacketHandshake packet) {
conn.updateVersion(packet.getVersion());
conn.updateState(packet.getNextState());
Logger.debug("Pinged from %s [%s]", conn.getAddress(),
conn.getClientVersion().toString());
if (server.getConfig().getInfoForwarding().isLegacy()) {
String[] split = packet.getHost().split("\00");
if (split.length == 3 || split.length == 4) {
conn.setAddress(split[1]);
conn.getGameProfile().setUuid(UuidUtil.fromString(split[2]));
} else {
conn.disconnectLogin("You've enabled player info forwarding. You need to connect with proxy");
}
} else if (server.getConfig().getInfoForwarding().isBungeeGuard()) {
if (!conn.checkBungeeGuardHandshake(packet.getHost())) {
conn.disconnectLogin("Invalid BungeeGuard token or handshake format");
}
}
}
public void handle(ClientConnection conn, PacketStatusRequest packet) {
conn.sendPacket(PacketSnapshots.PACKET_STATUS_RESPONSE);
}
public void handle(ClientConnection conn, PacketStatusPing packet) {
conn.sendPacketAndClose(packet);
}
public void handle(ClientConnection conn, PacketLoginStart packet) {
if (server.getConfig().getMaxPlayers() > 0 &&
server.getConnections().getCount() >= server.getConfig().getMaxPlayers()) {
conn.disconnectLogin("Too many players connected");
return;
}
if (!conn.getClientVersion().isSupported()) {
conn.disconnectLogin("Unsupported client version");
return;
}
if (server.getConfig().getInfoForwarding().isModern()) {
int loginId = ThreadLocalRandom.current().nextInt(0, Integer.MAX_VALUE);
PacketLoginPluginRequest request = new PacketLoginPluginRequest();
request.setMessageId(loginId);
request.setChannel(LimboConstants.VELOCITY_INFO_CHANNEL);
request.setData(Unpooled.EMPTY_BUFFER);
conn.setVelocityLoginMessageId(loginId);
conn.sendPacket(request);
return;
}
if (!server.getConfig().getInfoForwarding().isModern()) {
conn.getGameProfile().setUsername(packet.getUsername());
conn.getGameProfile().setUuid(UuidUtil.getOfflineModeUuid(packet.getUsername()));
}
conn.fireLoginSuccess();
}
public void handle(ClientConnection conn, PacketLoginPluginResponse packet) {
if (server.getConfig().getInfoForwarding().isModern()
&& packet.getMessageId() == conn.getVelocityLoginMessageId()) {
if (!packet.isSuccessful() || packet.getData() == null) {
conn.disconnectLogin("You need to connect with Velocity");
return;
}
if (!conn.checkVelocityKeyIntegrity(packet.getData())) {
conn.disconnectLogin("Can't verify forwarded player info");
return;
}
// Order is important
conn.setAddress(packet.getData().readString());
conn.getGameProfile().setUuid(packet.getData().readUuid());
conn.getGameProfile().setUsername(packet.getData().readString());
conn.fireLoginSuccess();
}
}
}

175
src/main/java/ru/nanit/limbo/connection/PacketSnapshots.java Normal file
View File

@ -0,0 +1,175 @@
/*
* Copyright (C) 2020 Nan1t
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package ru.nanit.limbo.connection;
import ru.nanit.limbo.LimboConstants;
import ru.nanit.limbo.protocol.PacketSnapshot;
import ru.nanit.limbo.protocol.packets.login.PacketLoginSuccess;
import ru.nanit.limbo.protocol.packets.play.*;
import ru.nanit.limbo.protocol.packets.status.PacketStatusResponse;
import ru.nanit.limbo.server.LimboServer;
import ru.nanit.limbo.server.data.Title;
import ru.nanit.limbo.util.UuidUtil;
import java.util.Collections;
import java.util.UUID;
import java.util.concurrent.ThreadLocalRandom;
public final class PacketSnapshots {
public static PacketSnapshot PACKET_STATUS_RESPONSE;
public static PacketSnapshot PACKET_LOGIN_SUCCESS;
public static PacketSnapshot PACKET_JOIN_GAME;
public static PacketSnapshot PACKET_PLUGIN_MESSAGE;
public static PacketSnapshot PACKET_PLAYER_ABILITIES;
public static PacketSnapshot PACKET_PLAYER_INFO;
public static PacketSnapshot PACKET_DECLARE_COMMANDS;
public static PacketSnapshot PACKET_PLAYER_POS;
public static PacketSnapshot PACKET_JOIN_MESSAGE;
public static PacketSnapshot PACKET_BOSS_BAR;
public static PacketSnapshot PACKET_HEADER_AND_FOOTER;
public static PacketSnapshot PACKET_TITLE_TITLE;
public static PacketSnapshot PACKET_TITLE_SUBTITLE;
public static PacketSnapshot PACKET_TITLE_TIMES;
public static PacketSnapshot PACKET_TITLE_LEGACY_TITLE;
public static PacketSnapshot PACKET_TITLE_LEGACY_SUBTITLE;
public static PacketSnapshot PACKET_TITLE_LEGACY_TIMES;
private PacketSnapshots() { }
public static void initPackets(LimboServer server) {
final String username = server.getConfig().getPingData().getVersion();
final UUID uuid = UuidUtil.getOfflineModeUuid(username);
PacketLoginSuccess loginSuccess = new PacketLoginSuccess();
loginSuccess.setUsername(username);
loginSuccess.setUuid(uuid);
PacketJoinGame joinGame = new PacketJoinGame();
joinGame.setEntityId(0);
joinGame.setEnableRespawnScreen(true);
joinGame.setFlat(false);
joinGame.setGameMode(server.getConfig().getGameMode());
joinGame.setHardcore(false);
joinGame.setMaxPlayers(server.getConfig().getMaxPlayers());
joinGame.setPreviousGameMode(-1);
joinGame.setReducedDebugInfo(true);
joinGame.setDebug(false);
joinGame.setViewDistance(0);
joinGame.setWorldName("minecraft:world");
joinGame.setWorldNames("minecraft:world");
joinGame.setHashedSeed(0);
joinGame.setDimensionRegistry(server.getDimensionRegistry());
PacketPlayerAbilities playerAbilities = new PacketPlayerAbilities();
playerAbilities.setFlyingSpeed(0.0F);
playerAbilities.setFlags(0x02);
playerAbilities.setFieldOfView(0.1F);
PacketPlayerPositionAndLook positionAndLook = new PacketPlayerPositionAndLook();
positionAndLook.setX(server.getConfig().getSpawnPosition().getX());
positionAndLook.setY(server.getConfig().getSpawnPosition().getY());
positionAndLook.setZ(server.getConfig().getSpawnPosition().getZ());
positionAndLook.setYaw(server.getConfig().getSpawnPosition().getYaw());
positionAndLook.setPitch(server.getConfig().getSpawnPosition().getPitch());
positionAndLook.setTeleportId(ThreadLocalRandom.current().nextInt());
PacketDeclareCommands declareCommands = new PacketDeclareCommands();
declareCommands.setCommands(Collections.emptyList());
PacketPlayerInfo info = new PacketPlayerInfo();
info.setUsername(server.getConfig().getPlayerListUsername());
info.setGameMode(server.getConfig().getGameMode());
info.setUuid(uuid);
PACKET_STATUS_RESPONSE = PacketSnapshot.of(new PacketStatusResponse(server));
PACKET_LOGIN_SUCCESS = PacketSnapshot.of(loginSuccess);
PACKET_JOIN_GAME = PacketSnapshot.of(joinGame);
PACKET_PLAYER_ABILITIES = PacketSnapshot.of(playerAbilities);
PACKET_PLAYER_POS = PacketSnapshot.of(positionAndLook);
PACKET_PLAYER_INFO = PacketSnapshot.of(info);
PACKET_DECLARE_COMMANDS = PacketSnapshot.of(declareCommands);
if (server.getConfig().isUseHeaderAndFooter()) {
PacketPlayerListHeader header = new PacketPlayerListHeader();
header.setHeader(server.getConfig().getPlayerListHeader());
header.setFooter(server.getConfig().getPlayerListFooter());
PACKET_HEADER_AND_FOOTER = PacketSnapshot.of(header);
}
if (server.getConfig().isUseBrandName()){
PacketPluginMessage pluginMessage = new PacketPluginMessage();
pluginMessage.setChannel(LimboConstants.BRAND_CHANNEL);
pluginMessage.setMessage(server.getConfig().getBrandName());
PACKET_PLUGIN_MESSAGE = PacketSnapshot.of(pluginMessage);
}
if (server.getConfig().isUseJoinMessage()) {
PacketChatMessage joinMessage = new PacketChatMessage();
joinMessage.setJsonData(server.getConfig().getJoinMessage());
joinMessage.setPosition(PacketChatMessage.Position.CHAT);
joinMessage.setSender(UUID.randomUUID());
PACKET_JOIN_MESSAGE = PacketSnapshot.of(joinMessage);
}
if (server.getConfig().isUseBossBar()) {
PacketBossBar bossBar = new PacketBossBar();
bossBar.setBossBar(server.getConfig().getBossBar());
bossBar.setUuid(UUID.randomUUID());
PACKET_BOSS_BAR = PacketSnapshot.of(bossBar);
}
if (server.getConfig().isUseTitle()) {
Title title = server.getConfig().getTitle();
PacketTitleSetTitle packetTitle = new PacketTitleSetTitle();
PacketTitleSetSubTitle packetSubtitle = new PacketTitleSetSubTitle();
PacketTitleTimes packetTimes = new PacketTitleTimes();
PacketTitleLegacy legacyTitle = new PacketTitleLegacy();
PacketTitleLegacy legacySubtitle = new PacketTitleLegacy();
PacketTitleLegacy legacyTimes = new PacketTitleLegacy();
packetTitle.setTitle(title.getTitle());
packetSubtitle.setSubtitle(title.getSubtitle());
packetTimes.setFadeIn(title.getFadeIn());
packetTimes.setStay(title.getStay());
packetTimes.setFadeOut(title.getFadeOut());
legacyTitle.setTitle(title);
legacyTitle.setAction(PacketTitleLegacy.Action.SET_TITLE);
legacySubtitle.setTitle(title);
legacySubtitle.setAction(PacketTitleLegacy.Action.SET_SUBTITLE);
legacyTimes.setTitle(title);
legacyTimes.setAction(PacketTitleLegacy.Action.SET_TIMES_AND_DISPLAY);
PACKET_TITLE_TITLE = PacketSnapshot.of(packetTitle);
PACKET_TITLE_SUBTITLE = PacketSnapshot.of(packetSubtitle);
PACKET_TITLE_TIMES = PacketSnapshot.of(packetTimes);
PACKET_TITLE_LEGACY_TITLE = PacketSnapshot.of(legacyTitle);
PACKET_TITLE_LEGACY_SUBTITLE = PacketSnapshot.of(legacySubtitle);
PACKET_TITLE_LEGACY_TIMES = PacketSnapshot.of(legacyTimes);
}
}
}

6
src/main/java/ru/nanit/limbo/protocol/Packet.java
View File

@ -17,7 +17,9 @@
package ru.nanit.limbo.protocol;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
public interface Packet {
@ -25,4 +27,8 @@ public interface Packet {
void decode(ByteMessage msg, Version version);
default void handle(ClientConnection conn, LimboServer server) {
// Ignored by default
}
}

9
src/main/java/ru/nanit/limbo/protocol/packets/PacketHandshake.java
View File

@ -17,10 +17,14 @@
package ru.nanit.limbo.protocol.packets;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.protocol.ByteMessage;
import ru.nanit.limbo.protocol.PacketIn;
import ru.nanit.limbo.protocol.registry.State;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
import ru.nanit.limbo.server.Logger;
import ru.nanit.limbo.util.UuidUtil;
public class PacketHandshake implements PacketIn {
@ -62,4 +66,9 @@ public class PacketHandshake implements PacketIn {
public String toString() {
return getClass().getSimpleName();
}
@Override
public void handle(ClientConnection conn, LimboServer server) {
server.getPacketHandler().handle(conn, this);
}
}

7
src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginPluginResponse.java
View File

@ -17,9 +17,11 @@
package ru.nanit.limbo.protocol.packets.login;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.protocol.ByteMessage;
import ru.nanit.limbo.protocol.PacketIn;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
public class PacketLoginPluginResponse implements PacketIn {
@ -50,6 +52,11 @@ public class PacketLoginPluginResponse implements PacketIn {
}
}
@Override
public void handle(ClientConnection conn, LimboServer server) {
server.getPacketHandler().handle(conn, this);
}
@Override
public String toString() {
return getClass().getSimpleName();

7
src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginStart.java
View File

@ -17,9 +17,11 @@
package ru.nanit.limbo.protocol.packets.login;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.protocol.ByteMessage;
import ru.nanit.limbo.protocol.PacketIn;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
public class PacketLoginStart implements PacketIn {
@ -34,6 +36,11 @@ public class PacketLoginStart implements PacketIn {
this.username = msg.readString();
}
@Override
public void handle(ClientConnection conn, LimboServer server) {
server.getPacketHandler().handle(conn, this);
}
@Override
public String toString() {
return getClass().getSimpleName();

7
src/main/java/ru/nanit/limbo/protocol/packets/status/PacketStatusPing.java
View File

@ -17,9 +17,11 @@
package ru.nanit.limbo.protocol.packets.status;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.protocol.ByteMessage;
import ru.nanit.limbo.protocol.Packet;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
public class PacketStatusPing implements Packet {
@ -35,6 +37,11 @@ public class PacketStatusPing implements Packet {
this.randomId = msg.readLong();
}
@Override
public void handle(ClientConnection conn, LimboServer server) {
server.getPacketHandler().handle(conn, this);
}
@Override
public String toString() {
return getClass().getSimpleName();

7
src/main/java/ru/nanit/limbo/protocol/packets/status/PacketStatusRequest.java
View File

@ -17,9 +17,11 @@
package ru.nanit.limbo.protocol.packets.status;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.protocol.ByteMessage;
import ru.nanit.limbo.protocol.PacketIn;
import ru.nanit.limbo.protocol.registry.Version;
import ru.nanit.limbo.server.LimboServer;
public class PacketStatusRequest implements PacketIn {
@ -28,6 +30,11 @@ public class PacketStatusRequest implements PacketIn {
}
@Override
public void handle(ClientConnection conn, LimboServer server) {
server.getPacketHandler().handle(conn, this);
}
@Override
public String toString() {
return getClass().getSimpleName();

10
src/main/java/ru/nanit/limbo/server/LimboServer.java
View File

@ -30,6 +30,8 @@ import io.netty.util.ResourceLeakDetector;
import ru.nanit.limbo.configuration.LimboConfig;
import ru.nanit.limbo.connection.ClientChannelInitializer;
import ru.nanit.limbo.connection.ClientConnection;
import ru.nanit.limbo.connection.PacketHandler;
import ru.nanit.limbo.connection.PacketSnapshots;
import ru.nanit.limbo.world.dimension.DimensionRegistry;
import java.nio.file.Paths;
@ -39,6 +41,7 @@ import java.util.concurrent.TimeUnit;
public final class LimboServer {
private LimboConfig config;
private PacketHandler packetHandler;
private Connections connections;
private DimensionRegistry dimensionRegistry;
private ScheduledFuture<?> keepAliveTask;
@ -50,6 +53,10 @@ public final class LimboServer {
return config;
}
public PacketHandler getPacketHandler() {
return packetHandler;
}
public Connections getConnections() {
return connections;
}
@ -66,11 +73,12 @@ public final class LimboServer {
config = new LimboConfig(Paths.get("./"));
config.load();
packetHandler = new PacketHandler(this);
dimensionRegistry = new DimensionRegistry(this);
dimensionRegistry.load(config.getDimensionType());
connections = new Connections();
ClientConnection.initPackets(this);
PacketSnapshots.initPackets(this);
startBootstrap();