Add OverworldHijack module

pom.xml

@@ -134,17 +134,20 @@
         </repository>
 
         <!-- MurderMystery, BuildBattle and VillageDefense -->
-        <!-- Broken -->
-        <!--<repository>
-            <id>plajerlair-repo</id>
-            <url>https://maven.plajer.xyz/minecraft</url>
-        </repository>-->
+        <repository>
+            <id>plugilyprojects-snapshots</id>
+            <url>https://maven.plugily.xyz/snapshots</url>
+        </repository>
 
         <!-- dynmap -->
         <repository>
             <id>MikeRepo</id>
             <url>https://repo.mikeprimm.com/</url>
         </repository>
+        <repository>
+            <id>packetevents-repo</id>
+            <url>https://repo.retrooper.dev/public/</url>
+        </repository>
     </repositories>
 
     <dependencies>
@@ -484,10 +487,9 @@
 
         <!-- VillageDefense -->
         <dependency>
-            <groupId>pl.plajer</groupId>
+            <groupId>plugily.projects</groupId>
             <artifactId>villagedefense</artifactId>
-            <version>4.4.2</version>
-            <scope>provided</scope>
+            <version>4.7.0-SNAPSHOT7</version>
         </dependency>
 
         <!-- Craftconomy3 -->
@@ -525,6 +527,13 @@
             <artifactId>Konquest</artifactId>
             <version>0.12.0</version>
         </dependency>
+
+        <!-- PacketEvents -->
+        <dependency>
+            <groupId>com.github.retrooper</groupId>
+            <artifactId>packetevents-spigot</artifactId>
+            <version>2.8.0</version>
+        </dependency>
     </dependencies>
 
     <build>

src/au/com/addstar/pandora/MasterPlugin.java

@@ -128,6 +128,7 @@ private void registerModules() {
         registerModule("RPlaceDynmap", "au.com.addstar.pandora.modules.RPlaceDynmap", "dynmap", "RPlace");
         registerModule("Konquest", "au.com.addstar.pandora.modules.Konquest", "Konquest");
         registerModule("MineChessHelper", "au.com.addstar.pandora.modules.MineChessHelper","MineChessPlus", "ChatControl");
+        registerModule("OverworldHijack", "au.com.addstar.pandora.modules.OverworldHijack", "PacketEvents");
     }
 
     @Override

src/au/com/addstar/pandora/modules/OverworldHijack.java

@@ -0,0 +1,79 @@
+package au.com.addstar.pandora.modules;
+
+import au.com.addstar.pandora.AbstractModule;
+import au.com.addstar.pandora.AutoConfig;
+import au.com.addstar.pandora.ConfigField;
+import au.com.addstar.pandora.MasterPlugin;
+import com.github.retrooper.packetevents.PacketEvents;
+import com.github.retrooper.packetevents.event.PacketListener;
+import com.github.retrooper.packetevents.event.PacketSendEvent;
+import com.github.retrooper.packetevents.packettype.PacketType;
+import com.github.retrooper.packetevents.protocol.world.DimensionType;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerJoinGame;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerRespawn;
+import org.bukkit.entity.Player;
+import java.io.File;
+
+public class OverworldHijack extends AbstractModule implements PacketListener {
+
+    private MasterPlugin plugin;
+    private Config config;
+
+    @Override
+    public void onEnable() {
+        if (config != null && config.load()) {
+            config.save();
+            debug = config.debug;
+        }
+        PacketEvents.get().getEventManager().registerListener(this);
+    }
+
+    @Override
+    public void onDisable() {
+        PacketEvents.get().getEventManager().unregisterListener(this);
+        plugin = null;
+        config = null;
+    }
+
+    @Override
+    public void setPandoraInstance(MasterPlugin plugin) {
+        this.plugin = plugin;
+        this.config = new Config(new File(plugin.getDataFolder(), "OverworldHijack.yml"));
+    }
+
+    @Override
+    public void onPacketSend(PacketSendEvent event) {
+        if (event.getPacketType() == PacketType.Play.Server.JOIN_GAME) {
+            WrapperPlayServerJoinGame packet = new WrapperPlayServerJoinGame(event);
+            handle(packet, event.getPlayer());
+        } else if (event.getPacketType() == PacketType.Play.Server.RESPAWN) {
+            WrapperPlayServerRespawn packet = new WrapperPlayServerRespawn(event);
+            handle(packet, event.getPlayer());
+        }
+    }
+
+    private void handle(WrapperPlayServerJoinGame packet, Player player) {
+        DimensionType dim = packet.getDimensionType();
+        if (dim != DimensionType.NETHER && dim != DimensionType.END) {
+            debugLog("Spoofing join dimension for " + player.getName());
+            packet.setDimensionType(DimensionType.OVERWORLD);
+            packet.setDimension(DimensionType.OVERWORLD);
+        }
+    }
+
+    private void handle(WrapperPlayServerRespawn packet, Player player) {
+        DimensionType dim = packet.getDimensionType();
+        if (dim != DimensionType.NETHER && dim != DimensionType.END) {
+            debugLog("Spoofing respawn dimension for " + player.getName());
+            packet.setDimensionType(DimensionType.OVERWORLD);
+            packet.setDimension(DimensionType.OVERWORLD);
+        }
+    }
+
+    private class Config extends AutoConfig {
+        public Config(File file) { super(file); }
+
+        @ConfigField(comment = "Enable debugging")
+        public boolean debug = false;
+    }
+}

src/resources/OverworldHijack.yml

@@ -0,0 +1,2 @@
+# Enable debug logging
+#debug: true

src/resources/plugin.yml

@@ -5,7 +5,7 @@ description: ${project.description}
 
 main: ${mainClass}
 
-softdepend: [geSuitHomes, Multiverse-Core, My_Worlds, GriefPrevention, QuickShop, VanishNoPacket, Citizens, Votifier, Monolith, Minigames, MurderMystery, BuildBattle, VillageDefense, PrisonMines, ChatControl, RPlace, Konquest, Treasures, Slimefun]
+softdepend: [geSuitHomes, Multiverse-Core, My_Worlds, GriefPrevention, QuickShop, VanishNoPacket, Citizens, Votifier, Monolith, Minigames, MurderMystery, BuildBattle, VillageDefense, PrisonMines, ChatControl, RPlace, Konquest, Treasures, Slimefun, PacketEvents]
 
 loadbefore: [CommandHelper]