Mod detection refactoring

Adding Lunar support
Fixing LabyMod support
Restricting ReplayMod
Restricting WorldDownloader
Enabling Fabric without FabricModSender
Adding logging for unknown channels

Untested.

Signed-off-by: Lixfel <agga-games@gmx.de>

build.gradle

@@ -59,6 +59,15 @@ repositories {
     mavenCentral()
     maven {
         url 'https://m2.dv8tion.net/releases'
+        content {
+            includeGroup 'net.dv8tion'
+        }
+    }
+    maven {
+        url 'https://repo.lunarclient.dev'
+        content {
+            includeGroup 'com.lunarclient'
+        }
     }
 }
 
@@ -75,4 +84,7 @@ dependencies {
     }
 
     implementation project(":CommonCore")
+
+    implementation 'com.lunarclient:apollo-api:1.1.0'
+    implementation 'com.lunarclient:apollo-common:1.1.0'
 }

src/de/steamwar/bungeecore/BungeeCore.java

@@ -23,11 +23,9 @@ import de.steamwar.bungeecore.bot.SteamwarDiscordBot;
 import de.steamwar.bungeecore.bot.config.SteamwarDiscordBotConfig;
 import de.steamwar.bungeecore.commands.*;
 import de.steamwar.bungeecore.listeners.*;
-import de.steamwar.bungeecore.listeners.mods.*;
+import de.steamwar.bungeecore.mods.ServerListPing;
-import de.steamwar.bungeecore.listeners.ping.PingListener;
+import de.steamwar.bungeecore.mods.*;
 import de.steamwar.bungeecore.network.BungeeNetworkHandler;
-import de.steamwar.bungeecore.network.NetworkReceiver;
-import de.steamwar.bungeecore.network.SWScriptSyntaxForwarder;
 import de.steamwar.bungeecore.tablist.TablistManager;
 import de.steamwar.command.SWCommandUtils;
 import de.steamwar.command.SWTypeMapperCreator;
@@ -38,7 +36,6 @@ import de.steamwar.sql.SteamwarUser;
 import de.steamwar.sql.Team;
 import de.steamwar.sql.UserElo;
 import de.steamwar.sql.internal.Statement;
-import net.md_5.bungee.BungeeCord;
 import net.md_5.bungee.api.ChatMessageType;
 import net.md_5.bungee.api.CommandSender;
 import net.md_5.bungee.api.ProxyServer;
@@ -76,11 +73,6 @@ public class BungeeCore extends Plugin {
 
     @Override
     public void onEnable(){
-        getProxy().registerChannel("sw:bridge");
-        getProxy().registerChannel("fabricmodsender:mods");
-        getProxy().registerChannel("nochatreports:sync");
-        getProxy().registerChannel("sw:script_syntax");
-
         setInstance(this);
         MAIN_SERVER = ProxyServer.getInstance().getConfig().getListeners().stream().anyMatch(info -> ((InetSocketAddress) info.getSocketAddress()).getPort() == 25565);
         loadConfig();
@@ -98,25 +90,21 @@ public class BungeeCore extends Plugin {
                 return tabCompleter.apply(sender, s);
             }
         });
-        BungeeCord.getInstance().getScheduler().schedule(this, TabCompletionCache::invalidateOldEntries, 1, 1, TimeUnit.SECONDS);
+        ProxyServer.getInstance().getScheduler().schedule(this, TabCompletionCache::invalidateOldEntries, 1, 1, TimeUnit.SECONDS);
 
-        new NonFabricFabricCheck();
+        new ServerListPing();
-
+        new PluginMessage();
-        new SWScriptSyntaxForwarder();
+        new Schematica();
-        new ConnectionListener();
-        new Forge();
-        new Forge12();
-        new LabyMod();
         new Badlion();
+        new FabricModSender();
+        new ReplayMod();
+        new FML2();
+
+        new ConnectionListener();
         new ChatListener();
         new BanListener();
         new CheckListener();
-        new ModLoaderBlocker();
-        new WorldDownloader();
-        new BrandListener();
-        new Fabric();
         new SubserverProtocolFixer();
-        new PingListener();
 
         local = new Node.LocalNode();
         if(MAIN_SERVER) {
@@ -186,7 +174,6 @@ public class BungeeCore extends Plugin {
 
         new EventStarter();
         new SessionManager();
-        new NetworkReceiver();
         BungeeNetworkHandler.register();
         tablistManager = new TablistManager();
         new SettingsChangedListener();
@@ -317,9 +304,6 @@ public class BungeeCore extends Plugin {
                     serverName,
                     cmds.toArray(new String[0])
             );
-            if(server.getBoolean("modchecked", false)) {
-                ModLoaderBlocker.addServer(serverName);
-            }
         }
 
         File discordFile = new File(System.getProperty("user.home"), "discord.yml");

src/de/steamwar/bungeecore/commands/TypeMappers.java

@@ -20,7 +20,6 @@
 package de.steamwar.bungeecore.commands;
 
 import de.steamwar.bungeecore.ArenaMode;
-import de.steamwar.bungeecore.listeners.mods.ModLoaderBlocker;
 import de.steamwar.command.SWCommandUtils;
 import de.steamwar.command.TypeMapper;
 import de.steamwar.command.TypeValidator;
@@ -49,10 +48,6 @@ public class TypeMappers {
                 return false;
             }
 
-            if (ModLoaderBlocker.isFabric(value)) {
-                messageSender.send("MODLOADER_DENIED");
-                return false;
-            }
             return true;
         };
     }

src/de/steamwar/bungeecore/commands/WhoisCommand.java

@@ -21,7 +21,7 @@ package de.steamwar.bungeecore.commands;
 
 import de.steamwar.bungeecore.Message;
 import de.steamwar.bungeecore.Storage;
-import de.steamwar.bungeecore.listeners.mods.Utils;
+import de.steamwar.bungeecore.mods.ModUtils;
 import de.steamwar.command.SWCommand;
 import de.steamwar.command.SWCommandUtils;
 import de.steamwar.command.TypeMapper;
@@ -118,7 +118,7 @@ public class WhoisCommand extends SWCommand {
             sender.system("WHOIS_CURRENT_SERVER", target.getServer().getInfo().getName());
             sender.system("WHOIS_CURRENT_PROTOCOL", target.getPendingConnection().getVersion());
 
-            List<Mod> mods = Utils.playerModMap.get(user.getUUID());
+            List<Mod> mods = ModUtils.getPlayerModMap().get(user.getUUID());
             if(mods == null)
                 mods = Collections.emptyList();
 

src/de/steamwar/bungeecore/listeners/BanListener.java

@@ -23,7 +23,6 @@ import de.steamwar.bungeecore.BungeeCore;
 import de.steamwar.bungeecore.Message;
 import de.steamwar.bungeecore.commands.PunishmentCommand;
 import de.steamwar.bungeecore.commands.WebpasswordCommand;
-import de.steamwar.bungeecore.listeners.mods.Forge;
 import de.steamwar.messages.ChatSender;
 import de.steamwar.sql.BannedUserIPs;
 import de.steamwar.sql.Punishment;
@@ -57,7 +56,6 @@ public class BanListener extends BasicListener {
 
             List<BannedUserIPs> ips = BannedUserIPs.get(connection.getAddress().getAddress().getHostAddress());
             if(!ips.isEmpty()){
-
                 Timestamp highestBan = ips.get(0).getTimestamp();
                 boolean perma = false;
                 for(BannedUserIPs banned : ips) {
@@ -74,7 +72,7 @@ public class BanListener extends BasicListener {
                 }
                 ClickEvent clickEvent = new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/ban " + user.getUserName() + " "
                         + (perma?"perma":highestBan.toLocalDateTime().format(DateTimeFormatter.ofPattern("dd.MM.yyyy_HH:mm")))
-                        + " Bannumgehung");
+                        + " Ban Evasion - Bannumgehung");
 
                 ChatSender.serverteamReceivers().forEach(sender -> sender.system(
                         "BAN_AVOIDING_ALERT",
@@ -89,7 +87,7 @@ public class BanListener extends BasicListener {
                 ));
             }
 
-            Forge.onServerConnected(event);
+            event.completeIntent(BungeeCore.get());
         });
     }
 }

src/de/steamwar/bungeecore/listeners/BrandListener.java

@@ -1,71 +0,0 @@
-/*
-    This file is a part of the SteamWar software.
-
-    Copyright (C) 2020  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.bungeecore.listeners;
-
-import de.steamwar.messages.ChatSender;
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufAllocator;
-import net.md_5.bungee.api.ProxyServer;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.event.EventHandler;
-import net.md_5.bungee.protocol.DefinedPacket;
-
-import java.net.InetAddress;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-
-public class BrandListener extends BasicListener {
-
-    private static boolean isLocalHost(InetAddress addr) {
-        if (addr.isAnyLocalAddress() || addr.isLoopbackAddress()) {
-            return true;
-        }
-        try {
-            return NetworkInterface.getByInetAddress(addr) != null;
-        } catch (SocketException e) {
-            return false;
-        }
-    }
-
-    @EventHandler
-    public void onServerSwitch(PluginMessageEvent event) {
-        if(!event.getTag().equals("minecraft:brand") && !event.getTag().equals("MC|Brand")) {
-            return;
-        }
-
-        if (event.getReceiver() == null || isLocalHost(event.getReceiver().getAddress().getAddress())) {
-            return;
-        }
-
-        if (!(event.getReceiver() instanceof ProxiedPlayer)) {
-            return;
-        }
-        event.setCancelled(true);
-
-        ProxiedPlayer player = (ProxiedPlayer) event.getReceiver();
-        String brandString = ChatSender.of(player).parseToLegacy("STEAMWAR_BRAND", ProxyServer.getInstance().getName(), player.getServer().getInfo().getName(), new String(event.getData(), 1, event.getData().length - 1));
-
-        ByteBuf brand = ByteBufAllocator.DEFAULT.heapBuffer();
-        DefinedPacket.writeString(brandString, brand);
-        player.sendData(event.getTag(), DefinedPacket.toArray(brand));
-        brand.release();
-    }
-}

src/de/steamwar/bungeecore/listeners/ConnectionListener.java

@@ -29,7 +29,7 @@ import de.steamwar.bungeecore.commands.ChallengeCommand;
 import de.steamwar.bungeecore.commands.CheckCommand;
 import de.steamwar.bungeecore.commands.ModCommand;
 import de.steamwar.bungeecore.commands.MsgCommand;
-import de.steamwar.bungeecore.listeners.mods.Utils;
+import de.steamwar.bungeecore.mods.ModUtils;
 import de.steamwar.sql.SteamwarUser;
 import de.steamwar.sql.UserPerm;
 import net.md_5.bungee.api.AbstractReconnectHandler;
@@ -156,7 +156,7 @@ public class ConnectionListener extends BasicListener {
     public void onDisconnect(PlayerDisconnectEvent e){
         ChallengeCommand.remove(e.getPlayer());
         MsgCommand.remove(e.getPlayer());
-        Utils.playerModMap.remove(e.getPlayer().getUniqueId());
+        ModUtils.getPlayerModMap().remove(e.getPlayer().getUniqueId());
         ModCommand.playerFilterType.remove(e.getPlayer());
     }
 }

src/de/steamwar/bungeecore/listeners/NonFabricFabricCheck.java

@@ -1,97 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2022  SteamWar.de-Serverteam
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.bungeecore.listeners;
-
-import de.steamwar.bungeecore.BungeeCore;
-import de.steamwar.bungeecore.Message;
-import de.steamwar.bungeecore.Storage;
-import net.md_5.bungee.BungeeCord;
-import net.md_5.bungee.api.connection.Connection;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.LoginEvent;
-import net.md_5.bungee.api.event.PlayerDisconnectEvent;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.event.EventHandler;
-
-import java.util.HashSet;
-import java.util.Locale;
-import java.util.Set;
-import java.util.UUID;
-import java.util.concurrent.TimeUnit;
-
-public class NonFabricFabricCheck extends BasicListener {
-
-    private final Set<UUID> usingFabric = new HashSet<>();
-
-    private final Set<ProxiedPlayer> checking = new HashSet<>();
-    private final Set<ProxiedPlayer> vanilla = new HashSet<>();
-
-    {
-        BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), usingFabric::clear, 0, 15, TimeUnit.MINUTES);
-    }
-
-    @EventHandler
-    public void pluginMessageEvent(PluginMessageEvent e) {
-        Connection sender = e.getSender();
-        if(!(sender instanceof ProxiedPlayer))
-            return;
-
-        ProxiedPlayer p = (ProxiedPlayer) sender;
-        if (e.getTag().equals("minecraft:register") && new String(e.getData()).contains("fabric-screen-handler-api-v1:open_screen")) {
-            BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
-                if (!sender.isConnected()) return;
-                if (!vanilla.remove(p)) return;
-                if (Storage.fabricCheckedPlayers.containsKey(p)) return;
-                p.disconnect(Message.parse("MOD_USE_MODSENDER", p));
-            }, 25, TimeUnit.SECONDS);
-            return;
-        }
-
-        if(!e.getTag().equals("minecraft:brand"))
-            return;
-
-        if(!new String(e.getData()).equals("vanilla"))
-            return;
-        vanilla.add(p);
-
-        BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
-            if (!p.isConnected()) return;
-            if (Storage.fabricCheckedPlayers.containsKey(p)) return;
-            checking.add(p);
-            p.sendData("fabric-screen-handler-api-v1:open_screen", new byte[] {0});
-            BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), () -> checking.remove(p), 1, TimeUnit.SECONDS);
-        }, 30, TimeUnit.SECONDS);
-    }
-
-    @EventHandler
-    public void onPlayerPreLogin(LoginEvent e) {
-        if (usingFabric.remove(e.getConnection().getUniqueId())) {
-            e.getConnection().disconnect(Message.parse("MOD_USE_MODSENDER", Locale.getDefault()));
-        }
-    }
-
-    @EventHandler
-    public void onPlayerDisconnect(PlayerDisconnectEvent e) {
-        if (checking.remove(e.getPlayer())) {
-            usingFabric.add(e.getPlayer().getUniqueId());
-        }
-        vanilla.remove(e.getPlayer());
-    }
-}

src/de/steamwar/bungeecore/listeners/PluginMessage.java

@@ -0,0 +1,177 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.listeners;
+
+import com.lunarclient.apollo.ApolloManager;
+import de.steamwar.bungeecore.BungeeCore;
+import de.steamwar.bungeecore.commands.TeamCommand;
+import de.steamwar.bungeecore.mods.*;
+import de.steamwar.bungeecore.network.ServerMetaInfo;
+import de.steamwar.messages.ChatSender;
+import de.steamwar.network.packets.NetworkPacket;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufAllocator;
+import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.connection.Server;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.protocol.DefinedPacket;
+
+import java.net.InetSocketAddress;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.logging.Level;
+
+public class PluginMessage extends BasicListener {
+
+    public static void send(ProxiedPlayer player, String legacyChannel, String channel, byte[] data) {
+        // 1.12 format change
+        player.sendData(player.getPendingConnection().getVersion() > 340 ? channel : legacyChannel, data);
+    }
+
+    //TODO change to warning level
+    private static final Parser UNKNOWN = event -> BungeeCore.get().getLogger().log(Level.INFO, () -> "Undefined PluginMessage on channel " + event.getTag() + " from " + event.getSender() + " received.\n" + Arrays.toString(event.getData()));
+    private static final Parser PASS_THROUGH = event -> event.setCancelled(false);
+    private static final Parser DROP = event -> {};
+
+    private final Lunar lunar = new Lunar();
+
+    private final Map<String, Parser> handlers = new HashMap<>();
+
+    public PluginMessage() {
+        LabyMod labyMod = new LabyMod();
+        FML fml = new FML();
+        FabricModSender fabricModSender = new FabricModSender();
+        WorldDownloader wdl = new WorldDownloader();
+
+        register("REGISTER", false, directional(PASS_THROUGH, this::clientRegistersChannel));
+        register("minecraft:register", false, directional(PASS_THROUGH, this::clientRegistersChannel));
+
+        register("BungeeCord", false, onlySWSource(PASS_THROUGH));
+        register("bungeecord:main", false, onlySWSource(PASS_THROUGH));
+        register("MC|Brand", true, directional(this::steamWarBrand, this::userBrand));
+        register("minecraft:brand", true, directional(this::steamWarBrand, this::userBrand));
+
+        register("sw:script_syntax", false, directional(onlySWSource(PASS_THROUGH), UNKNOWN));
+        register("sw:bridge", false, directional(onlySWSource(async(event -> NetworkPacket.handle(new ServerMetaInfo(((Server) event.getSender()).getInfo()), event.getData()))), UNKNOWN));
+        register("fabricmodsender:mods", true, directional(UNKNOWN, fabricModSender::handlePluginMessage));
+
+        register("WDL|REQUEST", false, DROP);
+        register("wdl:request", false, DROP);
+        register("WDL|INIT", true, directional(UNKNOWN, wdl::handlePluginMessage));
+        register("wdl:init", true, directional(UNKNOWN, wdl::handlePluginMessage));
+
+        register(ApolloManager.PLUGIN_MESSAGE_CHANNEL, true, async(lunar::handlePluginMessage));
+        register("LMC", true, directional(UNKNOWN, async(labyMod::handlePluginMessage)));
+        register("labymod3:main", true, directional(UNKNOWN, async(labyMod::handlePluginMessage)));
+        register(FML.CHANNEL, true, directional(UNKNOWN, fml::handlePluginMessage));
+
+        //litematica/malilib https://github.com/maruohon/litematica/issues/75 https://github.com/maruohon/malilib/blob/liteloader_1.12.2/src/main/java/malilib/network/message/ConfigLockPacketHandler.java#L65
+    }
+
+    @EventHandler
+    public void onPluginMessage(PluginMessageEvent event) {
+        event.setCancelled(true);
+
+        BungeeCore.get().getLogger().log(Level.INFO, event + "\n" + new String(event.getData()) + "\n" + Arrays.toString(event.getData())); //TODO remove logging
+
+        try {
+            handlers.getOrDefault(event.getTag(), UNKNOWN).handle(event);
+        } catch (Exception e) {
+            throw new SecurityException("PluginMessage handling exception: " + event + "\n" + Arrays.toString(event.getData()), e);
+        }
+    }
+
+    private void register(String channel, boolean clientSideRegister, Parser handler) {
+        handlers.put(channel, handler);
+        if(clientSideRegister)
+            ProxyServer.getInstance().registerChannel(channel);
+    }
+
+    private void clientRegistersChannel(PluginMessageEvent event) {
+        ProxiedPlayer player = (ProxiedPlayer) event.getSender();
+
+        for(String channel : new String(event.getData()).split("\0")) {
+            if(channel.equals(ApolloManager.PLUGIN_MESSAGE_CHANNEL))
+                lunar.sendRestrictions(player);
+
+            if(!handlers.containsKey(channel))
+                //TODO change to warning level
+                BungeeCore.get().getLogger().log(Level.INFO, () -> player.getName() + " registered unknown channel " + channel);
+        }
+
+        PASS_THROUGH.handle(event);
+    }
+
+    private void userBrand(PluginMessageEvent event) {
+        ProxiedPlayer player = (ProxiedPlayer) event.getSender();
+        String brand = new String(event.getData());
+
+        if(brand.equals("vanilla")) {
+            // nothing to do
+        } else if(brand.startsWith("lunarclient:")) {
+            lunar.sendRestrictions(player);
+        } else {
+            //TODO change to warning level
+            BungeeCore.get().getLogger().log(Level.INFO, () -> player.getName() + " joined with unknown brand " + brand);
+        }
+
+        PASS_THROUGH.handle(event);
+    }
+
+    private void steamWarBrand(PluginMessageEvent event) {
+        ProxiedPlayer player = (ProxiedPlayer) event.getReceiver();
+        String brandString = ChatSender.of(player).parseToLegacy("STEAMWAR_BRAND", ProxyServer.getInstance().getName(), player.getServer().getInfo().getName(), new String(event.getData(), 1, event.getData().length - 1));
+
+        ByteBuf brand = ByteBufAllocator.DEFAULT.heapBuffer();
+        DefinedPacket.writeString(brandString, brand);
+        player.sendData(event.getTag(), DefinedPacket.toArray(brand));
+        brand.release();
+    }
+
+
+    private Parser directional(Parser fromServer, Parser fromPlayer) {
+        return event -> {
+            if(event.getSender() instanceof ProxiedPlayer)
+                fromPlayer.handle(event);
+            else
+                fromServer.handle(event);
+        };
+    }
+
+    private Parser onlySWSource(Parser parser) {
+        return event -> {
+            if(TeamCommand.isLocalhost(((InetSocketAddress) event.getSender().getSocketAddress()).getAddress()))
+                parser.handle(event);
+            else
+                UNKNOWN.handle(event);
+        };
+    }
+
+    private Parser async(Parser parser) {
+        return event -> ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> parser.handle(event));
+    }
+
+    private interface Parser {
+        void handle(PluginMessageEvent event);
+    }
+}

src/de/steamwar/bungeecore/listeners/mods/Badlion.java

@@ -1,31 +0,0 @@
-package de.steamwar.bungeecore.listeners.mods;
-
-import de.steamwar.bungeecore.listeners.BasicListener;
-import net.md_5.bungee.api.event.PostLoginEvent;
-import net.md_5.bungee.event.EventHandler;
-
-public class Badlion extends BasicListener {
-
-    @EventHandler
-    public void onPostLogin(PostLoginEvent event) {
-        /*
-        {
-        "modsDisallowed": {
-        "Clear Glass":{"disabled":true},
-        "ClearWater":{"disabled":true},
-        "FOV Changer":{"disabled":true},
-        "Hitboxes":{"disabled":true},
-        "MiniMap":{"disabled":true},
-        "MLG Cobweb":{"disabled":true},
-        "Replay":{"disabled":true},
-        "Schematica":{"disabled":true},
-        "ToggleSneak":{"disabled":true},
-        "ToggleSprint":{"disabled":true},
-        "TNT Time":{"disabled":true}
-        }
-        }
-        */
-
-        event.getPlayer().sendData("badlion:mods", ("{\"Clear Glass\":{\"disabled\":true},\"ClearWater\":{\"disabled\":true},\"FOV Changer\":{\"disabled\":true},\"Hitboxes\":{\"disabled\":true},\"LevelHead\":{\"disabled\":true},\"MiniMap\":{\"disabled\":true},\"MLG Cobweb\":{\"disabled\":true},\"Replay\":{\"disabled\":true},\"Schematica\":{\"disabled\":true},\"ToggleSneak\":{\"disabled\":true},\"ToggleSprint\":{\"disabled\":true},\"TNT Time\":{\"disabled\":true}}").getBytes());
-    }
-}

src/de/steamwar/bungeecore/listeners/mods/Fabric.java

@@ -1,193 +0,0 @@
-/*
-    This file is a part of the SteamWar software.
-
-    Copyright (C) 2020  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.mods;
-
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonParser;
-import com.google.gson.JsonSyntaxException;
-import de.steamwar.bungeecore.BungeeCore;
-import de.steamwar.bungeecore.Storage;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import de.steamwar.sql.Mod;
-import de.steamwar.sql.SWException;
-import de.steamwar.sql.SteamwarUser;
-import net.md_5.bungee.BungeeCord;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.api.event.ServerSwitchEvent;
-import net.md_5.bungee.event.EventHandler;
-
-import java.nio.charset.StandardCharsets;
-import java.nio.charset.UnsupportedCharsetException;
-import java.util.*;
-import java.util.concurrent.TimeUnit;
-
-public class Fabric extends BasicListener {
-
-    public static void remove(ProxiedPlayer player) {
-        Storage.fabricCheckedPlayers.remove(player);
-        synchronized (Storage.fabricExpectPluginMessage) {
-            Storage.fabricExpectPluginMessage.remove(player);
-        }
-    }
-
-    private static final HashSet<String> ppCircumventerList = new HashSet<>();
-    static {
-        ppCircumventerList.add("java");
-        ppCircumventerList.add("minecraft");
-        ppCircumventerList.add("org_joml_joml");
-        ppCircumventerList.add("steamwarmodsender");
-    }
-
-    private static final Set<String> neededMods = new HashSet<>();
-    static {
-        neededMods.add("java");
-        neededMods.add("minecraft");
-        neededMods.add("fabricloader");
-        neededMods.add("steamwarmodsender");
-    }
-
-    {
-        BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
-            synchronized (Storage.fabricExpectPluginMessage) {
-                for (Map.Entry<ProxiedPlayer, Long> entry : Storage.fabricExpectPluginMessage.entrySet()) {
-                    if (!Storage.fabricCheckedPlayers.containsKey(entry.getKey())) {
-                        continue;
-                    }
-                    if (System.currentTimeMillis() - entry.getValue() > TimeUnit.SECONDS.toMillis(20)) {
-                        logMessage(SteamwarUser.get(entry.getKey().getUniqueId()), "Expected message not received", String.valueOf(entry.getValue()));
-                        Storage.fabricExpectPluginMessage.remove(entry.getKey());
-                        return;
-                    }
-                }
-            }
-        }, 0, 1, TimeUnit.SECONDS);
-    }
-
-    @EventHandler
-    public void onPluginMessageEvent(PluginMessageEvent e){
-        if(!e.getTag().equals("fabricmodsender:mods"))
-            return;
-
-        if (!(e.getSender() instanceof ProxiedPlayer)) {
-            return;
-        }
-
-        ProxiedPlayer player = (ProxiedPlayer) e.getSender();
-        SteamwarUser user = SteamwarUser.get(player.getUniqueId());
-        byte[] data = e.getData();
-
-        if (!Storage.fabricCheckedPlayers.containsKey(player)) {
-            synchronized (Storage.fabricExpectPluginMessage) {
-                if (Storage.fabricExpectPluginMessage.containsKey(player)) {
-                    logMessage(user, "Was not fabric checked but send message nonetheless", Arrays.toString(data));
-                    return;
-                }
-            }
-        }
-        Storage.fabricExpectPluginMessage.remove(player);
-
-        List<Mod> mods = new ArrayList<>();
-
-        Utils.VarInt varInt = Utils.readVarInt(data,0);
-
-        if(data.length != varInt.length + varInt.value) {
-            logMessage(user, "Invalid message length", Arrays.toString(data));
-            return;
-        }
-
-        data = Arrays.copyOfRange(data,varInt.length, data.length);
-
-        String dataString;
-
-        try{
-            dataString = new String(data, StandardCharsets.UTF_8);
-        }catch (UnsupportedCharsetException exception) {
-            logMessage(user, "Unsupported charset", Arrays.toString(data));
-            return;
-        }
-
-        JsonArray array;
-
-        try {
-            array = JsonParser.parseString(dataString).getAsJsonArray();
-        }catch (JsonSyntaxException exception) {
-            logMessage(user, "Invalid json", dataString);
-            return;
-        }
-
-        for(JsonElement mod : array) {
-            mods.add(Mod.getOrCreate(mod.getAsString(), Mod.Platform.FABRIC));
-        }
-
-        boolean neededMods = neededModsContained(mods);
-        if(!neededMods) {
-            logMessage(user, "Needed mods are not contained", dataString);
-            return;
-        }
-
-        if(ppCircumventerCheck(mods))
-            logMessage(user, "PP circumventer suspicion", dataString);
-
-        if(!Utils.handleMods(player,mods))
-            return;
-
-        if (Storage.fabricCheckedPlayers.containsKey(player)) {
-            long current = Storage.fabricCheckedPlayers.get(player);
-            if (current != dataString.hashCode()) {
-                logMessage(user, "Mods changed during runtime", dataString);
-                return;
-            }
-        } else {
-            Storage.fabricCheckedPlayers.put(player, dataString.hashCode());
-        }
-        Storage.fabricPlayers.remove(player);
-    }
-
-    @EventHandler
-    public void onServerSwitchEvent(ServerSwitchEvent e) {
-        if (e.getFrom() == null) return;
-        synchronized (Storage.fabricExpectPluginMessage) {
-            Storage.fabricExpectPluginMessage.put(e.getPlayer(), System.currentTimeMillis());
-        }
-    }
-
-    private boolean neededModsContained(List<Mod> mods) {
-        return mods.stream()
-                .map(Mod::getModName)
-                .filter(neededMods::contains)
-                .count() == neededMods.size();
-    }
-
-    private void logMessage(SteamwarUser user, String reason, String data) {
-        SWException.log("FabricModSender " + user.getUserName() + ": " + reason, data);
-    }
-
-    private boolean ppCircumventerCheck(List<Mod> mods) {
-        for(Mod mod : mods) {
-            String name = mod.getModName();
-            if(!name.startsWith("fabric") && !ppCircumventerList.contains(name))
-                return false;
-        }
-
-        return true;
-    }
-}

src/de/steamwar/bungeecore/listeners/mods/Forge.java

@@ -1,147 +0,0 @@
-/* 
-    This file is a part of the SteamWar software.
-    
-    Copyright (C) 2020  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.mods;
-
-import de.steamwar.bungeecore.BungeeCore;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import de.steamwar.sql.Mod;
-import io.netty.channel.ChannelPipeline;
-import net.md_5.bungee.api.chat.TextComponent;
-import net.md_5.bungee.api.connection.PendingConnection;
-import net.md_5.bungee.api.event.LoginEvent;
-import net.md_5.bungee.connection.InitialHandler;
-import net.md_5.bungee.netty.ChannelWrapper;
-import net.md_5.bungee.netty.HandlerBoss;
-import net.md_5.bungee.netty.PacketHandler;
-import net.md_5.bungee.protocol.packet.LoginPayloadRequest;
-import net.md_5.bungee.protocol.packet.LoginPayloadResponse;
-
-import java.lang.reflect.Field;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-import java.util.logging.Level;
-
-public class Forge extends BasicListener {
-
-    private static final String WRAPPER = "fml:loginwrapper";
-
-    private static final Field initialHandlerCh;
-    static{
-        try {
-            initialHandlerCh = InitialHandler.class.getDeclaredField("ch");
-        } catch (NoSuchFieldException e) {
-            throw new SecurityException("Could not initialize Reflection", e);
-        }
-        initialHandlerCh.setAccessible(true);
-    }
-
-    public static void onServerConnected(LoginEvent event) {
-        if(event.getConnection().getVersion() < 341 || event.getConnection().getVersion() > 763) { //1.13 - 1.20.1
-            event.completeIntent(BungeeCore.get());
-            return;
-        }
-
-        //fml:handshake without mods, channels and registries
-        //for more information see https://wiki.vg/Minecraft_Forge_Handshake#FML2_protocol_.281.13_-_Current.29
-        event.getConnection().unsafe().sendPacket(new LoginPayloadRequest(1, WRAPPER, new byte[]{13,102,109,108,58,104,97,110,100,115,104,97,107,101,4,1,0,0,0}));
-
-        InitialHandler handler = (InitialHandler) event.getConnection();
-
-        ChannelWrapper wrapper;
-        try{
-            wrapper = (ChannelWrapper) initialHandlerCh.get(handler);
-        } catch (IllegalAccessException e) {
-            BungeeCore.get().getLogger().log(Level.SEVERE, "Could not get Channel", e);
-            event.completeIntent(BungeeCore.get());
-            return;
-        }
-
-        ChannelPipeline pipeline = wrapper.getHandle().pipeline();
-        if(pipeline != null) {
-            HandlerBoss handlerBoss = pipeline.get(HandlerBoss.class);
-            if(handlerBoss != null)
-                handlerBoss.setHandler(new CustomPacketHandler(event));
-        }
-    }
-
-    private static class CustomPacketHandler extends PacketHandler {
-        private final LoginEvent event;
-
-        public CustomPacketHandler(LoginEvent event) {
-            this.event = event;
-        }
-
-        @Override
-        public String toString() {
-            return "SteamWar Forge Handler";
-        }
-
-        @Override
-        public void handle(LoginPayloadResponse response){
-            byte[] data = response.getData();
-            if(data == null) {
-                event.completeIntent(BungeeCore.get());
-                return;
-            }
-
-            //for more information see https://wiki.vg/Minecraft_Forge_Handshake#FML2_protocol_.281.13_-_Current.29
-            Utils.VarInt channelLength = Utils.readVarInt(data, 0);
-            int pos = channelLength.length;
-            if(!new String(data, pos, channelLength.value).equals("fml:handshake")) {
-                event.getConnection().disconnect(TextComponent.fromLegacyText("Invalid forge registry response (0x00)"));
-                return;
-            }
-            pos += channelLength.value;
-
-            Utils.VarInt length = Utils.readVarInt(data, pos);
-            pos += length.length;
-            if(channelLength.length + channelLength.value + length.length + length.value != data.length) {
-                event.getConnection().disconnect(TextComponent.fromLegacyText("Invalid forge registry response (0x01)"));
-                return;
-            }
-
-            Utils.VarInt packetId = Utils.readVarInt(data, pos);
-            pos += packetId.length;
-            if(packetId.value != 2) {
-                event.getConnection().disconnect(TextComponent.fromLegacyText("Invalid forge registry response (0x02)"));
-                return;
-            }
-
-            Utils.VarInt modCount = Utils.readVarInt(data, pos);
-            pos += modCount.length;
-
-            List<Mod> mods = new ArrayList<>();
-            for(int i = 0; i < modCount.value; i++) {
-                Utils.VarInt nameLength = Utils.readVarInt(data, pos);
-                pos += nameLength.length;
-
-                mods.add(Mod.getOrCreate(new String(data, pos, nameLength.value), Mod.Platform.FORGE));
-                pos += nameLength.value;
-            }
-
-            PendingConnection connection = event.getConnection();
-            if(!Utils.handleMods(connection.getUniqueId(), Locale.getDefault(), event::setCancelReason, mods)) {
-                event.setCancelled(true);
-            }
-            event.completeIntent(BungeeCore.get());
-        }
-    }
-}

src/de/steamwar/bungeecore/listeners/mods/Forge12.java

@@ -1,113 +0,0 @@
-/*
-    This file is a part of the SteamWar software.
-
-    Copyright (C) 2022  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.mods;
-
-import de.steamwar.bungeecore.BungeeCore;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import de.steamwar.sql.Mod;
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.UnpooledByteBufAllocator;
-import net.md_5.bungee.api.ProxyServer;
-import net.md_5.bungee.api.connection.Connection;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.api.event.PostLoginEvent;
-import net.md_5.bungee.event.EventHandler;
-
-import java.nio.charset.StandardCharsets;
-import java.util.*;
-import java.util.concurrent.TimeUnit;
-
-public class Forge12 extends BasicListener {
-    private static final String FMLHS = "FML|HS";
-    private static final byte[] REGISTER;
-    private static final byte[] HELLO = new byte[]{0, 2, 0, 0, 0, 0};
-
-    private static final Set<UUID> unlocked = new HashSet<>();
-
-    static {
-        ByteBuf buf = UnpooledByteBufAllocator.DEFAULT.directBuffer(7);
-        buf.writeByte(6);
-        buf.writeCharSequence(FMLHS, StandardCharsets.UTF_8);
-        REGISTER = new byte[buf.readableBytes()];
-        buf.readBytes(REGISTER);
-    }
-
-
-    @EventHandler
-    public void onPostLogin(PostLoginEvent event) {
-        ProxiedPlayer player = event.getPlayer();
-
-        synchronized (unlocked) {
-            if(unlocked.contains(player.getUniqueId())){
-                unlocked.remove(player.getUniqueId());
-                return;
-            }
-        }
-
-        if(player.getPendingConnection().getVersion() <= 340) {
-            player.sendData("REGISTER", REGISTER); //1.12-
-            player.sendData(FMLHS, HELLO);
-        }
-    }
-
-    @EventHandler
-    public void onPluginMessageEvent(PluginMessageEvent e){
-        if(!e.getTag().equals(FMLHS))
-            return;
-
-        e.setCancelled(true);
-        byte[] data = e.getData();
-
-        Connection sender = e.getSender();
-        if(!(sender instanceof ProxiedPlayer))
-            return;
-        ProxiedPlayer p = (ProxiedPlayer) sender;
-
-        if (data[0] == 2) {
-            Utils.VarInt numMods = Utils.readVarInt(data, 1);
-            List<Mod> mods = new LinkedList<>();
-
-            int bytePos = 1 + numMods.length;
-            for (int i = 0; i < numMods.value; i++) {
-                byte[] name = Arrays.copyOfRange(data, bytePos + 1, bytePos + data[bytePos] + 1);
-                bytePos += 1 + data[bytePos];
-                //Version information is unused
-                bytePos += 1 + data[bytePos];
-
-                mods.add(Mod.getOrCreate(new String(name), Mod.Platform.FORGE));
-            }
-
-            if (Utils.handleMods(p, mods)) {
-                synchronized (unlocked) {
-                    unlocked.add(p.getUniqueId());
-                }
-                ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(),
-                        () -> p.disconnect(BungeeCore.stringToText("§7Deine installierten Mods wurden überprüft\n§aDu kannst nun §eSteam§8War §abetreten")),
-                        2, TimeUnit.SECONDS);
-                ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
-                    synchronized (unlocked) {
-                        unlocked.remove(p.getUniqueId());
-                    }
-                }, 30, TimeUnit.SECONDS);
-            }
-        }
-    }
-}

src/de/steamwar/bungeecore/listeners/mods/LabyMod.java

@@ -1,184 +0,0 @@
-/* 
-    This file is a part of the SteamWar software.
-    
-    Copyright (C) 2020  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.mods;
-
-import com.google.gson.JsonObject;
-import com.google.gson.stream.JsonReader;
-import de.steamwar.bungeecore.BungeeCore;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import de.steamwar.sql.Mod;
-import net.md_5.bungee.api.ProxyServer;
-import net.md_5.bungee.api.connection.Connection;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.event.EventHandler;
-
-import java.io.IOException;
-import java.io.StringReader;
-import java.nio.charset.StandardCharsets;
-import java.util.Arrays;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.UUID;
-
-public class LabyMod extends BasicListener {
-
-    @EventHandler
-    public void onPluginMessageEvent(PluginMessageEvent event){
-        if(!event.getTag().equals("LMC"))
-            return;
-
-        Connection sender = event.getSender();
-        if(!(sender instanceof ProxiedPlayer))
-            return;
-
-        event.setCancelled(true);
-        updateGameInfo((ProxiedPlayer) sender);
-        byte[] data = event.getData();
-
-        ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> runAsync(data, (ProxiedPlayer) sender));
-    }
-
-    private void runAsync(byte[] data, ProxiedPlayer player) {
-        VarString purpose = readString(data, 0);
-        if(!"INFO".equals(purpose.value))
-            return;
-
-        VarString value = readString(data, purpose.length);
-        List<Mod> mods = new LinkedList<>();
-
-        try{
-            InfoPacket info = new InfoPacket(value.value);
-            for(InfoPacket.Addon addon : info.addons) {
-                mods.add(Mod.getOrCreate(addon.name, Mod.Platform.LABYMOD));
-            }
-        }catch(IOException e){
-            BungeeCore.log("Could not read JSON", e);
-        }
-
-        Utils.handleMods(player, mods);
-    }
-
-    private VarString readString(byte[] array, int startPos){
-        Utils.VarInt varInt = Utils.readVarInt(array, startPos);
-        startPos += varInt.length;
-        return new VarString(varInt.value+varInt.length, new String(Arrays.copyOfRange(array, startPos, startPos + varInt.value), StandardCharsets.UTF_8));
-    }
-
-    private void updateGameInfo(ProxiedPlayer proxiedPlayer) {
-        JsonObject obj = new JsonObject();
-        obj.addProperty("hasGame", true);
-        obj.addProperty("game_mode", "steamwar.de");
-        obj.addProperty("game_startTime", 0);
-        obj.addProperty("game_endTime", 0);
-        String output = "{ \"hasGame\" : \"true\", \"game_mode\" : \"steamwar.de\", \"game_startTime\" : \"0\", \"game_endTime\" : \"0\" }";
-
-        proxiedPlayer.sendData("LMC", output.getBytes());
-    }
-
-    private static class VarString{
-        private final int length;
-        private final String value;
-
-        private VarString(int length, String value) {
-            this.length = length;
-            this.value = value;
-        }
-    }
-
-    private static class InfoPacket{
-        String version = null;
-        Feature ccp = null;
-        Feature shadow = null;
-        List<Addon> addons = new LinkedList<>();
-
-        InfoPacket(String input) throws IOException {
-            JsonReader reader = new JsonReader(new StringReader(input));
-            reader.beginObject();
-            while(reader.hasNext()){
-                String name = reader.nextName();
-                switch(name){
-                    case "version":
-                        version = reader.nextString();
-                        break;
-                    case "ccp":
-                        ccp = new Feature(reader);
-                        break;
-                    case "shadow":
-                        shadow = new Feature(reader);
-                        break;
-                    case "addons":
-                        reader.beginArray();
-                        while(reader.hasNext()){
-                            addons.add(new Addon(reader));
-                        }
-                        reader.endArray();
-                        break;
-                    default:
-                        reader.skipValue();
-                }
-            }
-            reader.endObject();
-            reader.close();
-        }
-
-        static class Addon{
-            UUID uuid = null;
-            String name = null;
-
-            Addon(JsonReader reader) throws IOException {
-                reader.beginObject();
-                while(reader.hasNext()){
-                    String n = reader.nextName();
-                    if(n.equals("uuid"))
-                        try{
-                            uuid = UUID.fromString(reader.nextString());
-                        }catch(IllegalArgumentException ignored){
-                            //ignored
-                        }
-                    else if(n.equals("name"))
-                        name = reader.nextString();
-                    else
-                        reader.skipValue();
-                }
-                reader.endObject();
-            }
-        }
-
-        static class Feature{
-            boolean enabled;
-            int version;
-
-            Feature(JsonReader reader) throws IOException {
-                reader.beginObject();
-                while(reader.hasNext()){
-                    String name = reader.nextName();
-                    if(name.equals("version"))
-                        version = reader.nextInt();
-                    else if(name.equals("enabled"))
-                        enabled = reader.nextBoolean();
-                    else
-                        reader.skipValue();
-                }
-                reader.endObject();
-            }
-        }
-    }
-}

src/de/steamwar/bungeecore/listeners/mods/ModLoaderBlocker.java

@@ -1,87 +0,0 @@
-/*
-    This file is a part of the SteamWar software.
-
-    Copyright (C) 2020  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.bungeecore.listeners.mods;
-
-import de.steamwar.bungeecore.*;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import net.md_5.bungee.api.connection.Connection;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.PlayerDisconnectEvent;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.api.event.ServerSwitchEvent;
-import net.md_5.bungee.event.EventHandler;
-
-import java.util.HashSet;
-import java.util.Set;
-
-public class ModLoaderBlocker extends BasicListener {
-
-    private static final Set<String> BLOCKED_SERVER = new HashSet<>();
-
-    @EventHandler
-    public void onPluginMessageEvent(PluginMessageEvent e){
-        Connection sender = e.getSender();
-        if(!(sender instanceof ProxiedPlayer))
-            return;
-
-        ProxiedPlayer p = (ProxiedPlayer) sender;
-        if (e.getTag().equals("lunarclient:pm")) {
-            p.disconnect(Message.parseToComponent("MOD_LOADER_LUNAR_CLIENT", false, p));
-            return;
-        }
-
-        if(!e.getTag().equals("minecraft:brand"))
-            return;
-
-        String brand = new String(e.getData());
-        if(brand.contains("fabric") || brand.contains("quilt") || brand.contains("LiteLoader")){
-            if (!Storage.fabricCheckedPlayers.containsKey(p)) {
-                Storage.fabricPlayers.add(p);
-            }
-        } else if (brand.contains("lunar")) {
-            p.disconnect(Message.parseToComponent("MOD_LOADER_LUNAR_CLIENT", false, p));
-        }
-    }
-
-    @EventHandler
-    public void onDisconnect(PlayerDisconnectEvent e){
-        Fabric.remove(e.getPlayer());
-        Storage.fabricPlayers.remove(e.getPlayer());
-    }
-
-    @EventHandler
-    public void onServerSwitch(ServerSwitchEvent event) {
-        if(((Subserver.getSubserver(event.getPlayer()) != null
-                && Subserver.getSubserver(event.getPlayer()).getType() == Servertype.ARENA)
-                || BLOCKED_SERVER.contains(event.getPlayer().getServer().getInfo().getName()))
-                && isFabric(event.getPlayer())) {
-            event.getPlayer().connect(BungeeCore.get().getProxy().getServerInfo(BungeeCore.LOBBY_SERVER));
-            Message.send("MODLOADER_DENIED", event.getPlayer());
-        }
-    }
-
-    public static boolean isFabric(ProxiedPlayer player) {
-        return Storage.fabricPlayers.contains(player);
-    }
-
-    public static void addServer(String server) {
-        BLOCKED_SERVER.add(server);
-    }
-}

src/de/steamwar/bungeecore/listeners/mods/WorldDownloader.java

@@ -1,33 +0,0 @@
-package de.steamwar.bungeecore.listeners.mods;
-
-import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import de.steamwar.sql.Mod;
-import net.md_5.bungee.api.connection.Connection;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.event.EventHandler;
-
-import java.util.Collections;
-import java.util.Set;
-
-public class WorldDownloader extends BasicListener {
-
-    private static final Set<String> wdlTags = Collections.unmodifiableSet(
-            Sets.newHashSet("WDL|INIT", "wdl:init", "WDL|REQUEST", "wdl:request")
-    );
-
-    @EventHandler
-    public void onPluginMessageEvent(PluginMessageEvent event){
-        if(!wdlTags.contains(event.getTag()))
-            return;
-
-        Connection sender = event.getSender();
-        if(!(sender instanceof ProxiedPlayer))
-            return;
-
-        event.setCancelled(true);
-        Utils.handleMods((ProxiedPlayer) sender, Lists.newArrayList(Mod.getOrCreate("wdl", Mod.Platform.FORGE)));
-    }
-}

src/de/steamwar/bungeecore/listeners/ping/PingListener.java

@@ -1,32 +0,0 @@
-/*
-    This file is a part of the SteamWar software.
-
-    Copyright (C) 2022  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.ping;
-
-import de.steamwar.bungeecore.listeners.BasicListener;
-import net.md_5.bungee.api.event.ProxyPingEvent;
-import net.md_5.bungee.event.EventHandler;
-
-public class PingListener extends BasicListener {
-
-    @EventHandler
-    public void onPing(ProxyPingEvent event) {
-        event.setResponse(new SteamWarServerPing(event.getResponse(), event.getConnection().getVersion()));
-    }
-}

src/de/steamwar/bungeecore/listeners/ping/SteamWarServerPing.java

@@ -1,90 +0,0 @@
-/*
-    This file is a part of the SteamWar software.
-
-    Copyright (C) 2022  SteamWar.de-Serverteam
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.ping;
-
-import net.md_5.bungee.api.ServerPing;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-public class SteamWarServerPing extends ServerPing {
-
-    private final boolean preventsChatReports = true;
-    private final ForgeData forgeData;
-
-    public SteamWarServerPing(ServerPing existing, int version) {
-        super(existing.getVersion(), existing.getPlayers(), existing.getDescriptionComponent(), existing.getFaviconObject());
-        forgeData = new ForgeData(version);
-    }
-
-    private static class ForgeData {
-        private final List<ForgeChannel> channels = new ArrayList<>();
-        private final List<ForgeMod>     mods     = new ArrayList<>();
-        private final int fmlNetworkVersion = 2;
-
-        public ForgeData(int versionNumber) {
-            channels.add(new ForgeChannel("minecraft:unregister"));
-            channels.add(new ForgeChannel("minecraft:register"));
-            channels.add(new ForgeChannel("fml:handshake"));
-            mods.add(new ForgeMod("minecraft", ProtocolVersion.getVersion(versionNumber)));
-            mods.add(new ForgeMod("forge", "ANY"));
-        }
-
-        public final static class ProtocolVersion {
-
-            private static final HashMap<Integer, String> versions;
-
-            static {
-                versions = new HashMap();
-                versions.put(757, "1.18");
-                versions.put(756, "1.17.1");
-                versions.put(754, "1.16.5");
-                versions.put(578, "1.15.2");
-                versions.put(498, "1.14.1");
-                versions.put(393, "1.13");
-            }
-
-            public static String getVersion(int version) {
-                return versions.get(version);
-            }
-        }
-
-        private static class ForgeChannel {
-            private final String res;
-            private final String version = "FML2";
-            private final boolean required = true;
-
-            private ForgeChannel(String res) {
-                this.res = res;
-            }
-        }
-
-        private static class ForgeMod {
-            private final String modId;
-            private final String modmarker;
-
-            private ForgeMod(String modId, String modmarker) {
-                this.modId = modId;
-                this.modmarker = modmarker;
-            }
-        }
-    }
-}

src/de/steamwar/bungeecore/mods/Badlion.java

@@ -0,0 +1,57 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import com.google.gson.JsonObject;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import net.md_5.bungee.api.event.PostLoginEvent;
+import net.md_5.bungee.event.EventHandler;
+
+public class Badlion extends BasicListener {
+    // https://github.com/BadlionClient/BadlionClientModAPI
+
+    private final byte[] packet;
+
+    public Badlion() { //TODO check if working or (json) modsDisallowed wrapper necessary
+        JsonObject disabled = new JsonObject();
+        disabled.addProperty("disabled", true);
+
+        JsonObject json = new JsonObject();
+        json.add("Clear Glass", disabled);
+        json.add("ClearWater", disabled);
+        json.add("FOV Changer", disabled);
+        json.add("Hitboxes", disabled);
+        json.add("LevelHead", disabled);
+        json.add("MiniMap", disabled);
+        json.add("MLG Cobweb", disabled);
+        //json.add("Replay", disabled); //TODO check if ReplayMod restrictions work
+        json.add("Schematica", disabled);
+        json.add("ToggleSneak", disabled);
+        json.add("ToggleSprint", disabled);
+        json.add("TNT Time", disabled);
+
+        packet = json.toString().getBytes();
+    }
+
+    @EventHandler
+    public void onPostLogin(PostLoginEvent event) {
+        event.getPlayer().sendData("badlion:mods", packet);
+    }
+}

src/de/steamwar/bungeecore/mods/FML.java

@@ -0,0 +1,94 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import de.steamwar.bungeecore.BungeeCore;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import de.steamwar.sql.Mod;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+import net.md_5.bungee.api.event.PostLoginEvent;
+import net.md_5.bungee.connection.InitialHandler;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.protocol.DefinedPacket;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+public class FML extends BasicListener {
+    // https://wiki.vg/Minecraft_Forge_Handshake#FML_protocol_.281.7_-_1.12.29
+
+    public static final String CHANNEL = "FML|HS";
+    private final byte[] helloPacket = new byte[]{
+            /* Packet type: ServerHello */ 0,
+            /* FML protocol version */ 2,
+            /* Override dimension (int) */ 0, 0, 0, 0
+    };
+
+    private static final Set<UUID> unlocked = new HashSet<>();
+
+    @EventHandler
+    public void onPostLogin(PostLoginEvent event) {
+        ProxiedPlayer player = event.getPlayer();
+
+        synchronized (unlocked) {
+            if(unlocked.contains(player.getUniqueId())){
+                unlocked.remove(player.getUniqueId());
+                return;
+            }
+        }
+
+        if(((InitialHandler)player.getPendingConnection()).getHandshake().getHost().endsWith("\0FML\0")) {
+            player.sendData(CHANNEL, helloPacket);
+        }
+    }
+
+    public void handlePluginMessage(PluginMessageEvent event) {
+        ProxiedPlayer p = (ProxiedPlayer) event.getSender();
+        ByteBuf buf = Unpooled.wrappedBuffer(event.getData());
+
+        if (buf.readByte() == /* ModList */ 2) {
+            int numMods = DefinedPacket.readVarInt(buf);
+
+            List<Mod> mods = new ArrayList<>();
+            for(int i = 0; i < numMods; i++) {
+                String name = DefinedPacket.readString(buf);
+                DefinedPacket.readString(buf); // version
+
+                mods.add(Mod.getOrCreate(name, Mod.Platform.FORGE));
+            }
+
+            if (ModUtils.handleMods(p, mods)) {
+                synchronized (unlocked) {
+                    unlocked.add(p.getUniqueId());
+                }
+                p.disconnect(BungeeCore.stringToText("§7Deine installierten Mods wurden überprüft\n§aDu kannst nun §eSteam§8War §abetreten"));
+                ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
+                    synchronized (unlocked) {
+                        unlocked.remove(p.getUniqueId());
+                    }
+                }, 30, TimeUnit.SECONDS);
+            }
+        }
+    }
+}

src/de/steamwar/bungeecore/mods/FML2.java

@@ -0,0 +1,151 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import de.steamwar.bungeecore.BungeeCore;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import de.steamwar.sql.Mod;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.PendingConnection;
+import net.md_5.bungee.api.event.LoginEvent;
+import net.md_5.bungee.connection.InitialHandler;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.netty.ChannelWrapper;
+import net.md_5.bungee.netty.HandlerBoss;
+import net.md_5.bungee.netty.PacketHandler;
+import net.md_5.bungee.protocol.DefinedPacket;
+import net.md_5.bungee.protocol.packet.LoginPayloadRequest;
+import net.md_5.bungee.protocol.packet.LoginPayloadResponse;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+import java.util.logging.Level;
+
+public class FML2 extends BasicListener {
+    // https://wiki.vg/Minecraft_Forge_Handshake#FML2_protocol_.281.13_-_Current.29
+
+    public static boolean isFML2(PendingConnection connection) {
+        return ((InitialHandler)connection).getHandshake().getHost().endsWith("\0FML2\0");
+    }
+
+    private final Field initialHandlerCh;
+
+    public FML2() {
+        try {
+            initialHandlerCh = InitialHandler.class.getDeclaredField("ch");
+        } catch (NoSuchFieldException e) {
+            throw new SecurityException("Could not initialize Reflection", e);
+        }
+        initialHandlerCh.setAccessible(true);
+    }
+
+    //TODO current identifier is \0FORGE and fmlNetworkVersion 0 ?
+    //TODO links for current implementation (if current checker not working)
+    //https://github.com/MinecraftForge/MinecraftForge/blob/1.20.x/src/main/java/net/minecraftforge/network/ServerStatusPing.java
+    //https://github.com/MinecraftForge/MinecraftForge/blob/1.20.x/src/main/java/net/minecraftforge/network/NetworkContext.java#L26
+    //https://github.com/MinecraftForge/MinecraftForge/blob/1.20.x/src/main/java/net/minecraftforge/network/tasks/ForgeNetworkConfigurationHandler.java#L20
+    //https://github.com/MinecraftForge/MinecraftForge/blob/1.20.x/src/main/java/net/minecraftforge/network/NetworkRegistry.java#L177
+
+    @EventHandler
+    public void onLogin(LoginEvent event) {
+        PendingConnection connection = event.getConnection();
+
+        if(!isFML2(connection))
+            return;
+
+        try {
+            ((ChannelWrapper) initialHandlerCh.get(connection)).getHandle().pipeline().get(HandlerBoss.class).setHandler(new FML2LoginHandler(event));
+        } catch (IllegalAccessException e) {
+            BungeeCore.get().getLogger().log(Level.SEVERE, "Could not get Channel", e);
+            return;
+        }
+
+        event.registerIntent(BungeeCore.get());
+        connection.unsafe().sendPacket(new LoginPayloadRequest(1, "fml:loginwrapper", new byte[] {
+                /* fml:handshake */ 13,102,109,108,58,104,97,110,100,115,104,97,107,101,
+                /* Packet length */ 4,
+                /* Type mod list */ 1,
+                /* Mod count */ 0,
+                /* Channel count */ 0,
+                /* Registry count */ 0
+        }));
+    }
+
+    private static class FML2LoginHandler extends PacketHandler {
+        private final LoginEvent event;
+
+        public FML2LoginHandler(LoginEvent event) {
+            this.event = event;
+        }
+
+        @Override
+        public String toString() {
+            return "SteamWar FML2 Handler";
+        }
+
+        @Override
+        public void handle(LoginPayloadResponse response) {
+            byte[] data = response.getData();
+            if(data == null) {
+                abort(response, "Not FML2 client");
+                return;
+            }
+
+            ByteBuf buf = Unpooled.wrappedBuffer(data);
+            if(!DefinedPacket.readString(buf).equals("fml:handshake")) {
+                abort(response, "Not FML2 handshake response");
+                return;
+            }
+
+            int packetLength = DefinedPacket.readVarInt(buf);
+            if(packetLength != buf.readableBytes()) {
+                abort(response, "FML2 packet size mismatch");
+                return;
+            }
+
+            if(DefinedPacket.readVarInt(buf) != /* Mod List Reply */ 2) {
+                abort(response, "FML2 no mod list reply");
+                return;
+            }
+
+            List<Mod> mods = new ArrayList<>();
+
+            int modCount = DefinedPacket.readVarInt(buf);
+            for(int i = 0; i < modCount; i++)
+                mods.add(Mod.getOrCreate(DefinedPacket.readString(buf), Mod.Platform.FORGE));
+
+            if(!ModUtils.handleMods(event.getConnection().getUniqueId(), Locale.getDefault(), event::setReason, mods))
+                event.setCancelled(true);
+
+            event.completeIntent(BungeeCore.get());
+        }
+
+        private void abort(LoginPayloadResponse response, String error) {
+            event.setReason(TextComponent.fromLegacy(error));
+            event.setCancelled(true);
+            event.completeIntent(BungeeCore.get());
+            BungeeCore.get().getLogger().log(Level.SEVERE, () -> error + "\n" + response);
+        }
+    }
+}

src/de/steamwar/bungeecore/mods/FabricModSender.java

@@ -0,0 +1,141 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
+import de.steamwar.bungeecore.BungeeCore;
+import de.steamwar.bungeecore.Storage;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import de.steamwar.sql.Mod;
+import de.steamwar.sql.SWException;
+import de.steamwar.sql.SteamwarUser;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import net.md_5.bungee.BungeeCord;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PlayerDisconnectEvent;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+import net.md_5.bungee.api.event.ServerSwitchEvent;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.protocol.DefinedPacket;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+public class FabricModSender extends BasicListener {
+
+    private final Set<String> neededMods = new HashSet<>();
+
+    public FabricModSender() {
+        neededMods.add("java");
+        neededMods.add("minecraft");
+        neededMods.add("fabricloader");
+        neededMods.add("steamwarmodsender");
+
+        BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
+            synchronized (Storage.fabricExpectPluginMessage) {
+                for (Map.Entry<ProxiedPlayer, Long> entry : Storage.fabricExpectPluginMessage.entrySet()) {
+                    if (!Storage.fabricCheckedPlayers.containsKey(entry.getKey())) {
+                        continue;
+                    }
+                    if (System.currentTimeMillis() - entry.getValue() > TimeUnit.SECONDS.toMillis(20)) {
+                        Storage.fabricExpectPluginMessage.remove(entry.getKey());
+                        return;
+                    }
+                }
+            }
+        }, 0, 1, TimeUnit.SECONDS);
+    }
+
+    public void handlePluginMessage(PluginMessageEvent e){
+        ProxiedPlayer player = (ProxiedPlayer) e.getSender();
+        SteamwarUser user = SteamwarUser.get(player.getUniqueId());
+
+        if (!Storage.fabricCheckedPlayers.containsKey(player)) {
+            synchronized (Storage.fabricExpectPluginMessage) {
+                if (Storage.fabricExpectPluginMessage.containsKey(player)) {
+                    logMessage(user, "Was not fabric checked but send message nonetheless", Arrays.toString(e.getData()));
+                    return;
+                }
+            }
+        }
+        Storage.fabricExpectPluginMessage.remove(player);
+
+        List<Mod> mods = new ArrayList<>();
+
+        ByteBuf buf = Unpooled.wrappedBuffer(e.getData());
+        String data = DefinedPacket.readString(buf, 1024*1024);
+        if(buf.readableBytes() > 0) {
+            logMessage(user, "Invalid message length", Arrays.toString(e.getData()));
+            return;
+        }
+
+        JsonArray array = JsonParser.parseString(data).getAsJsonArray();
+
+        for(JsonElement mod : array) {
+            mods.add(Mod.getOrCreate(mod.getAsString(), Mod.Platform.FABRIC));
+        }
+
+        if(!neededModsContained(mods)) {
+            logMessage(user, "Needed mods are not contained", data);
+            return;
+        }
+
+        if(!ModUtils.handleMods(player,mods))
+            return;
+
+        if (!Storage.fabricCheckedPlayers.containsKey(player)) {
+            Storage.fabricCheckedPlayers.put(player, data.hashCode());
+        } else if (Storage.fabricCheckedPlayers.get(player) != data.hashCode()) {
+            logMessage(user, "Mods changed during runtime", data);
+        }
+    }
+
+    @EventHandler
+    public void onServerSwitchEvent(ServerSwitchEvent e) {
+        if (e.getFrom() == null) return;
+        synchronized (Storage.fabricExpectPluginMessage) {
+            Storage.fabricExpectPluginMessage.put(e.getPlayer(), System.currentTimeMillis());
+        }
+    }
+
+    @EventHandler
+    public void onDisconnect(PlayerDisconnectEvent e) {
+        ProxiedPlayer player = e.getPlayer();
+
+        Storage.fabricCheckedPlayers.remove(player);
+        synchronized (Storage.fabricExpectPluginMessage) {
+            Storage.fabricExpectPluginMessage.remove(player);
+        }
+    }
+
+    private boolean neededModsContained(List<Mod> mods) {
+        return mods.stream()
+                .map(Mod::getModName)
+                .filter(neededMods::contains)
+                .count() == neededMods.size();
+    }
+
+    private void logMessage(SteamwarUser user, String reason, String data) {
+        SWException.log("FabricModSender " + user.getUserName() + ": " + reason, data);
+    }
+}

src/de/steamwar/bungeecore/mods/LabyMod.java

@@ -0,0 +1,83 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import de.steamwar.sql.Mod;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+import net.md_5.bungee.protocol.DefinedPacket;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class LabyMod {
+    // https://docs.labymod.net/pages/server/introduction/
+    // https://github.com/LabyMod/labymod-server-api
+    // https://dl.labymod.net/addons.json
+
+    private final byte[] gameInfoPacket;
+    public LabyMod() {
+        ByteBuf buf = Unpooled.buffer();
+        DefinedPacket.writeString("discord_rpc", buf);
+
+        JsonObject json = new JsonObject();
+        json.addProperty("hasGame", true);
+        json.addProperty("game_mode", "steamwar.de");
+        json.addProperty("game_startTime", 0);
+        json.addProperty("game_endTime", 0);
+        DefinedPacket.writeString(json.toString(), buf);
+
+        gameInfoPacket = new byte[buf.readableBytes()];
+        buf.readBytes(gameInfoPacket);
+    }
+
+    public void handlePluginMessage(PluginMessageEvent event) {
+        ProxiedPlayer player = (ProxiedPlayer) event.getSender();
+        player.sendData(event.getTag(), gameInfoPacket);
+
+        ByteBuf buf = Unpooled.wrappedBuffer(event.getData());
+        String purpose = DefinedPacket.readString(buf);
+        if(!"INFO".equals(purpose))
+            return;
+
+        JsonObject message = JsonParser.parseString(DefinedPacket.readString(buf)).getAsJsonObject();
+        List<Mod> mods = new LinkedList<>();
+
+        for(JsonElement element : message.getAsJsonArray("addons")) {
+            JsonObject addon = element.getAsJsonObject();
+            mods.add(Mod.getOrCreate(addon.get("name").getAsString(), Mod.Platform.LABYMOD));
+        }
+
+        if(message.has("mods")) {
+            for(JsonElement element : message.getAsJsonArray("mods")) {
+                JsonObject addon = element.getAsJsonObject();
+                //TODO observer, FORGE and FABRIC mods available, do they always and with .jar? (would equal new mod platform)
+                //mods.add(Mod.getOrCreate(addon.get("name").getAsString().replace(".jar", ""), Mod.Platform.FORGE));
+            }
+        }
+
+        ModUtils.handleMods(player, mods);
+    }
+}

src/de/steamwar/bungeecore/mods/Lunar.java

@@ -0,0 +1,132 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import com.lunarclient.apollo.ApolloManager;
+import com.lunarclient.apollo.libs.protobuf.Any;
+import com.lunarclient.apollo.libs.protobuf.InvalidProtocolBufferException;
+import com.lunarclient.apollo.libs.protobuf.Message;
+import com.lunarclient.apollo.mods.impl.*;
+import com.lunarclient.apollo.module.ApolloModuleManager;
+import com.lunarclient.apollo.module.ApolloModuleManagerImpl;
+import com.lunarclient.apollo.module.modsetting.ModSettingModule;
+import com.lunarclient.apollo.network.NetworkOptions;
+import com.lunarclient.apollo.option.Options;
+import com.lunarclient.apollo.player.AbstractApolloPlayer;
+import com.lunarclient.apollo.player.v1.ModMessage;
+import com.lunarclient.apollo.player.v1.PlayerHandshakeMessage;
+import de.steamwar.bungeecore.BungeeCore;
+import de.steamwar.sql.Mod;
+import lombok.AllArgsConstructor;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.function.Consumer;
+import java.util.logging.Level;
+
+public class Lunar {
+    // https://lunarclient.dev/apollo/introduction
+    // https://github.com/LunarClient/Apollo
+
+    private final ApolloModuleManager manager = new ApolloModuleManagerImpl().addModule(ModSettingModule.class);
+
+    public Lunar() {
+        Options modSettings = manager.getModule(ModSettingModule.class).getOptions();
+        //modSettings.set(ModReplaymod.ENABLED, false); // TODO check if restrictions working
+        modSettings.set(ModFreelook.ENABLED, false);
+        modSettings.set(ModHypixelMod.ENABLED, false);
+        modSettings.set(ModMinimap.ENABLED, false);
+        modSettings.set(ModNametag.ENABLED, false);
+        modSettings.set(ModTeamView.ENABLED, false);
+        modSettings.set(ModTntCountdown.ENABLED, false);
+        modSettings.set(ModToggleSneak.TOGGLE_SNEAK_CONTAINER, false);
+    }
+
+    public void sendRestrictions(ProxiedPlayer player) {
+        NetworkOptions.sendOptions(manager.getModules(), true, new SWApolloPlayer(player));
+    }
+
+    public void handlePluginMessage(PluginMessageEvent event) {
+        ProxiedPlayer player = (ProxiedPlayer) event.getSender();
+        Any packet;
+
+        try {
+            packet = Any.parseFrom(event.getData());
+        } catch (InvalidProtocolBufferException e) {
+            throw new SecurityException(e);
+        }
+
+        handle(PlayerHandshakeMessage.class, packet, handshake -> {
+            List<Mod> mods = new ArrayList<>();
+
+            for(ModMessage mod : handshake.getInstalledModsList()) {
+                switch(mod.getType()) {
+                    case TYPE_FABRIC_INTERNAL:
+                    case TYPE_FORGE_INTERNAL:
+                        // Controlled with ModSettings
+                        break;
+                    case TYPE_FABRIC_EXTERNAL:
+                        mods.add(Mod.getOrCreate(mod.getName(), Mod.Platform.FABRIC));
+                        break;
+                    case TYPE_FORGE_EXTERNAL:
+                        mods.add(Mod.getOrCreate(mod.getName(), Mod.Platform.FORGE));
+                        break;
+                    case TYPE_UNSPECIFIED:
+                    case UNRECOGNIZED:
+                    default:
+                        BungeeCore.get().getLogger().log(Level.INFO, () -> player.getName() + " uses Lunar mod with unknown type " + mod);
+                        break;
+                }
+            }
+
+            ModUtils.handleMods(player, mods);
+        });
+    }
+
+    private <T extends Message> void handle(Class<T> type, Any packet, Consumer<T> handler) {
+        try {
+            handler.accept(packet.unpack(type));
+        } catch (InvalidProtocolBufferException ignored) { /*ignored*/ }
+    }
+
+    @AllArgsConstructor
+    private static class SWApolloPlayer extends AbstractApolloPlayer {
+
+        private final ProxiedPlayer player;
+
+        @Override
+        public void sendPacket(Message message) {
+            sendPacket(Any.pack(message).toByteArray());
+        }
+
+        @Override
+        public void sendPacket(byte[] bytes) {
+            player.sendData(ApolloManager.PLUGIN_MESSAGE_CHANNEL, bytes);
+        }
+
+        @Override public UUID getUniqueId() { return player.getUniqueId(); }
+        @Override public String getName() { return player.getName(); }
+        @Override public boolean hasPermission(String s) { return player.hasPermission(s); }
+        @Override public Object getPlayer() { return player; }
+    }
+}

src/de/steamwar/bungeecore/mods/ModUtils.java

@@ -1,23 +1,23 @@
 /*
-    This file is a part of the SteamWar software.
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 
-    Copyright (C) 2020  SteamWar.de-Serverteam
+package de.steamwar.bungeecore.mods;
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package de.steamwar.bungeecore.listeners.mods;
 
 import de.steamwar.bungeecore.BungeeCore;
 import de.steamwar.bungeecore.Message;
@@ -27,6 +27,8 @@ import de.steamwar.messages.ChatSender;
 import de.steamwar.sql.Mod;
 import de.steamwar.sql.Mod.ModType;
 import de.steamwar.sql.UserPerm;
+import lombok.Getter;
+import lombok.experimental.UtilityClass;
 import net.md_5.bungee.api.chat.BaseComponent;
 import net.md_5.bungee.api.chat.TextComponent;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
@@ -39,35 +41,17 @@ import java.util.function.Consumer;
 import java.util.logging.Level;
 import java.util.stream.Collectors;
 
-public class Utils {
+@UtilityClass
+public class ModUtils {
 
-    public static final Map<UUID,List<Mod>> playerModMap = new HashMap<>();
+    @Getter
+    private static final Map<UUID,List<Mod>> playerModMap = new HashMap<>();
 
-    private Utils(){}
+    public static boolean handleMods(ProxiedPlayer player, List<Mod> mods) {
-
-    static VarInt readVarInt(byte[] array, int startPos) {
-        int numRead = 0;
-        int result = 0;
-        byte read;
-        do {
-            read = array[startPos + numRead];
-            int value = (read & 0b01111111);
-            result |= (value << (7 * numRead));
-
-            numRead++;
-            if (numRead > 5) {
-                break;
-            }
-        } while ((read & 0b10000000) != 0);
-
-        return new VarInt(numRead, result);
-    }
-
-    static boolean handleMods(ProxiedPlayer player, List<Mod> mods) {
         return handleMods(player.getUniqueId(), ChatSender.of(player).getLocale(), player::disconnect, mods);
     }
 
-    static boolean handleMods(UUID uuid, Locale locale, Consumer<BaseComponent[]> disconnect, List<Mod> mods){
+    public static boolean handleMods(UUID uuid, Locale locale, Consumer<BaseComponent> disconnect, List<Mod> mods){
         SteamwarUser user = SteamwarUser.get(uuid);
         playerModMap.put(uuid,new ArrayList<>(mods));
 
@@ -101,17 +85,7 @@ public class Utils {
             BungeeCore.log(Level.SEVERE, user.getUserName() + " " + user.getId() + " wurde automatisch wegen der Mods " + modList + " gebannt.");
         }
 
-        disconnect.accept(TextComponent.fromLegacyText(message));
+        disconnect.accept(TextComponent.fromLegacy(message));
         return false;
     }
-
-    static class VarInt{
-        final int length;
-        final int value;
-
-        VarInt(int length, int value){
-            this.length = length;
-            this.value = value;
-        }
-    }
 }

src/de/steamwar/bungeecore/mods/ReplayMod.java

@@ -0,0 +1,71 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import de.steamwar.bungeecore.Bauserver;
+import de.steamwar.bungeecore.Subserver;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import de.steamwar.bungeecore.listeners.PluginMessage;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.ServerSwitchEvent;
+import net.md_5.bungee.event.EventHandler;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+public class ReplayMod extends BasicListener {
+    // https://gist.github.com/Johni0702/2547c463e51f65f312cb
+    // https://github.com/ReplayMod/replay-restrictions/blob/master/bungeecord/src/main/java/de/johni0702/replay/restrictions/BungeeCordPlugin.java
+
+    private final byte[] restrict;
+    private final byte[] unlock;
+
+    public ReplayMod() {
+        restrict = generatePacket(true);
+        unlock = generatePacket(false);
+    }
+
+    @EventHandler
+    public void onPlayerJoin(ServerSwitchEvent event) {
+        ProxiedPlayer player = event.getPlayer();
+        Subserver server = Subserver.getSubserver(player.getServer().getInfo());
+
+        PluginMessage.send(
+                player, "Replay|Restrict", "replaymod:restrict",
+                (server instanceof Bauserver && ((Bauserver) server).getOwner().equals(player.getUniqueId())) ? unlock : restrict
+        );
+    }
+
+    private byte[] generatePacket(boolean restrict) {
+        ByteArrayOutputStream stream = new ByteArrayOutputStream();
+        try {
+            for(String restriction : Arrays.asList("no_xray", "no_noclip", "only_first_person", "only_recording_player")) {
+                byte[] bytes = restriction.getBytes();
+                stream.write(bytes.length);
+                stream.write(bytes);
+                stream.write(restrict ? 1 : 0);
+            }
+        } catch (IOException e) {
+            throw new SecurityException(e);
+        }
+        return stream.toByteArray();
+    }
+}

src/de/steamwar/bungeecore/mods/Schematica.java

@@ -0,0 +1,40 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import de.steamwar.bungeecore.listeners.BasicListener;
+import net.md_5.bungee.api.event.PostLoginEvent;
+import net.md_5.bungee.event.EventHandler;
+
+public class Schematica extends BasicListener {
+    // https://github.com/Lunatrius/SchematicaPlugin/blob/master/src/main/java/com/github/lunatrius/schematica/plugin/SchematicaPlugin.java
+
+    private final byte[] packet = new byte[] {
+            /* ProtocolVersion? */ 0,
+            /* PERM_PRINTER */ 1,
+            /* PERM_SAVE */ 0,
+            /* PERM_LOAD */ 1
+    };
+
+    @EventHandler
+    public void onPostLogin(PostLoginEvent event) {
+        event.getPlayer().sendData("schematica", packet);
+    }
+}

src/de/steamwar/bungeecore/mods/ServerListPing.java

@@ -0,0 +1,119 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import com.google.gson.*;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import lombok.AllArgsConstructor;
+import net.md_5.bungee.BungeeCord;
+import net.md_5.bungee.api.ServerPing;
+import net.md_5.bungee.api.connection.PendingConnection;
+import net.md_5.bungee.api.event.ProxyPingEvent;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+import net.md_5.bungee.protocol.ProtocolConstants;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class ServerListPing extends BasicListener implements JsonSerializer<ServerPing>, JsonDeserializer<ServerPing> {
+    // https://github.com/Aizistral-Studios/No-Chat-Reports/discussions/206
+    // https://github.com/Aizistral-Studios/No-Chat-Reports/wiki/How-to-Get-Safe-Server-Status
+    // https://wiki.vg/Minecraft_Forge_Handshake#Changes_to_Server_List_Ping_2
+
+    private final Gson gson;
+    private final Map<Integer, String> versionMap = new HashMap<>();
+    private final FML2Channel[] fml2Channels = new FML2Channel[]{new FML2Channel("minecraft:register"), new FML2Channel("minecraft:unregister"), new FML2Channel("fml:handshake")};
+
+    private final Map<ServerPing, PendingConnection> connections = new ConcurrentHashMap<>();
+
+    public ServerListPing() {
+        BungeeCord bungeeCord = BungeeCord.getInstance();
+        gson = bungeeCord.gson;
+
+        try {
+            Field gsonField = BungeeCord.class.getDeclaredField("gson");
+            gsonField.setAccessible(true);
+            gsonField.set(bungeeCord, gson.newBuilder().registerTypeAdapter(ServerPing.class, this).create());
+
+            for(Field version : ProtocolConstants.class.getFields()) {
+                String name = version.getName();
+                if(version.getType() != int.class || !name.startsWith("MINECRAFT_"))
+                    continue;
+
+                versionMap.put(version.getInt(null), name.substring(10).replace('_', '.'));
+            }
+        } catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException e) {
+            throw new SecurityException("Failed to inject ServerListPing", e);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void onPing(ProxyPingEvent event) {
+        connections.put(event.getResponse(), event.getConnection());
+        connections.values().removeIf(connection -> !connection.isConnected()); // Prevent long term leaks
+    }
+
+    @Override
+    public JsonElement serialize(ServerPing ping, Type type, JsonSerializationContext context) {
+        JsonElement element = gson.toJsonTree(ping, type);
+
+        JsonObject object = element.getAsJsonObject();
+        object.addProperty("preventsChatReports", true);
+
+        PendingConnection connection = connections.remove(ping);
+        if(FML2.isFML2(connection)) {
+            object.add("forgeData", gson.toJsonTree(new FML2Data(fml2Channels, new FML2Mod[]{
+                    new FML2Mod("forge", "ANY"),
+                    new FML2Mod("minecraft", versionMap.get(connection.getVersion()))
+            }), FML2Data.class));
+        }
+
+        return element;
+    }
+
+    @Override
+    public ServerPing deserialize(JsonElement element, Type type, JsonDeserializationContext context) throws JsonParseException {
+        return gson.fromJson(element, ServerPing.class);
+    }
+
+    @AllArgsConstructor
+    private static class FML2Data {
+        private final int fmlNetworkVersion = 2;
+        private final FML2Channel[] channels;
+        private final FML2Mod[] mods;
+    }
+
+    @AllArgsConstructor
+    private static class FML2Channel {
+        private final String res;
+        private final String version = "FML2";
+        private final boolean required = true;
+    }
+
+    @AllArgsConstructor
+    private static class FML2Mod {
+        private final String modId;
+        private final String modmarker;
+    }
+}

src/de/steamwar/bungeecore/mods/WorldDownloader.java

@@ -0,0 +1,56 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2024  SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.mods;
+
+import de.steamwar.bungeecore.listeners.PluginMessage;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+public class WorldDownloader {
+
+    private final byte[] controlPacket;
+
+    public WorldDownloader() {
+        ByteArrayOutputStream stream = new ByteArrayOutputStream();
+        DataOutputStream out = new DataOutputStream(stream);
+
+        try {
+            out.writeInt(1); // basic data packet
+            out.writeBoolean(false); // General download enabled
+            out.writeInt(-1); // Save radius
+            out.writeBoolean(false); // Chunk caching enabled
+            out.writeBoolean(false); // Entity saving enabled
+            out.writeBoolean(false); // Tile entity saving disabled
+            out.writeBoolean(false); // Container saving disabled
+        } catch (IOException e) {
+            throw new SecurityException("Could not create AntiWDL packet", e);
+        }
+
+        controlPacket = stream.toByteArray();
+    }
+
+    public void handlePluginMessage(PluginMessageEvent event) {
+        PluginMessage.send((ProxiedPlayer) event.getSender(), "WDL|CONTROL", "wdl:control", controlPacket);
+    }
+}

src/de/steamwar/bungeecore/network/NetworkReceiver.java

@@ -1,58 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2022  SteamWar.de-Serverteam
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.bungeecore.network;
-
-import de.steamwar.bungeecore.BungeeCore;
-import de.steamwar.bungeecore.commands.TeamCommand;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import de.steamwar.sql.SWException;
-import de.steamwar.network.packets.NetworkPacket;
-import net.md_5.bungee.api.ProxyServer;
-import net.md_5.bungee.api.connection.Server;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.event.EventHandler;
-import net.md_5.bungee.event.EventPriority;
-
-import java.net.InetSocketAddress;
-import java.util.Arrays;
-import java.util.Base64;
-import java.util.List;
-
-public class NetworkReceiver extends BasicListener {
-
-    private static final List<String> blockedTags = Arrays.asList("bungeecord:main", "BungeeCord", "sw:bridge");
-
-    @EventHandler(priority = EventPriority.HIGHEST)
-    public void onPluginMessage(PluginMessageEvent event) {
-        if (blockedTags.contains(event.getTag()) && !TeamCommand.isLocalhost(((InetSocketAddress) event.getSender().getSocketAddress()).getAddress())) {
-            SWException.log(((InetSocketAddress) event.getSender().getSocketAddress()).getHostString() + " tried to send a plugin message with tag " + event.getTag(), Base64.getEncoder().encodeToString(event.getData()));
-            event.setCancelled(true);
-            return;
-        }
-        if(!event.getTag().equals("sw:bridge"))
-            return;
-
-        event.setCancelled(true);
-        if(!(event.getSender() instanceof Server))
-            return;
-
-        ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> NetworkPacket.handle(new ServerMetaInfo(((Server) event.getSender()).getInfo()), event.getData()));
-    }
-}

src/de/steamwar/bungeecore/network/SWScriptSyntaxForwarder.java

@@ -1,48 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2022  SteamWar.de-Serverteam
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.bungeecore.network;
-
-import de.steamwar.bungeecore.commands.TeamCommand;
-import de.steamwar.bungeecore.listeners.BasicListener;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.connection.Server;
-import net.md_5.bungee.api.event.PluginMessageEvent;
-import net.md_5.bungee.event.EventHandler;
-import net.md_5.bungee.event.EventPriority;
-
-import java.net.InetSocketAddress;
-
-public class SWScriptSyntaxForwarder extends BasicListener {
-
-    @EventHandler(priority = EventPriority.HIGHEST)
-    public void onPluginMessage(PluginMessageEvent event) {
-        if (!event.getTag().equals("sw:script_syntax")) {
-            return;
-        }
-        event.setCancelled(true);
-        if (!(event.getSender() instanceof Server)) {
-            return;
-        }
-        if (!TeamCommand.isLocalhost(((InetSocketAddress) event.getSender().getSocketAddress()).getAddress())) {
-            return;
-        }
-        ((ProxiedPlayer) event.getReceiver()).sendData("sw:script_syntax", event.getData());
-    }
-}

src/de/steamwar/messages/BungeeCore.properties

@@ -20,9 +20,6 @@ DISABLED=§cCurrently disabled.
 
 SERVER_START_OVERLOAD=§cServer start cancelled due to overload. Please try again later.
 
-#ModLoader blocker
-MODLOADER_DENIED=§cYou cannot join arenas with LiteLoader or Fabric without the FabricModSender https://steamwar.de/downloads installed.
-
 #Help command
 HELP_LOBBY=§7Return from anywhere to the lobby using §8/§el§7!
 HELP_LOBBY_HOVER=§eBack to the lobby
@@ -118,10 +115,6 @@ MOD_RED_PLUR=Attempted use of mods:\n{0}
 MOD_YELLOW_SING=§7Deactivate the mod §e{0}§7 to continue playing on §eSteam§8War§7.
 MOD_YELLOW_PLUR=§7Deactivate the mods\n§e{0}\n§7to continue playing on §eSteam§8War§7.
 
-MOD_LOADER_LUNAR_CLIENT=§eLunar Client§7 is not supported on §eSteam§8War§7.
-
-MOD_USE_MODSENDER=§cPlease use the §c§lFabricModSender§c (https://steamwar.de/downloads/) or remove the mod that is rebranding your installation.
-
 #Various commands
 ALERT=§f{0}
 STAT_SERVER=§7Server §e{0}§8: §7Below limit §e{1} §7Server count §e{2}

src/de/steamwar/messages/BungeeCore_de.properties

@@ -16,9 +16,6 @@ DISABLED=§cDerzeit deaktiviert.
 
 SERVER_START_OVERLOAD=§cDer Serverstart wurde aufgrund von Überlastung abgebrochen. Versuche es später erneut.
 
-#ModLoader blocker
-MODLOADER_DENIED=§cMit LiteLoader oder Fabric kannst du keinen Arenen ohne den FabricModSender https://steamwar.de/downloads beitreten.
-
 #Help command
 HELP_LOBBY=§7Kehre von überall mit §8/§el §7zur Lobby zurück!
 HELP_LOBBY_HOVER=§eZurück zur Lobby
@@ -103,10 +100,6 @@ MOD_RED_PLUR=Versuchte Benutzung der Mods:\n{0}
 MOD_YELLOW_SING=§7Deaktiviere den Mod §e{0}§7, um weiter auf §eSteam§8War §7spielen zu können.
 MOD_YELLOW_PLUR=§7Deaktiviere die Mods\n§e{0}\n§7um weiter auf §eSteam§8War §7spielen zu können.
 
-MOD_LOADER_LUNAR_CLIENT=§eLunar Client§7 ist auf §eSteam§8War§7 nicht unterstützt.
-
-MOD_USE_MODSENDER=§cBitte nutze den §c§lFabricModSender§c (https://steamwar.de/downloads/) oder entferne den Mod, der deine Fabric-Installation tarnt.
-
 #Various commands
 STAT_SERVER=§7Server §e{0}§8: §7Startfähig §e{1} §7Serveranzahl §e{2}