Purpur/patches/server/0003-Purpur-config-files.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 9 May 2019 18:09:43 -0500
Subject: [PATCH] Purpur config files


diff --git a/src/main/java/com/destroystokyo/paper/Metrics.java b/src/main/java/com/destroystokyo/paper/Metrics.java
index 218f5bafeed8551b55b91c7fccaf6935c8b631ca..7bc497bcae6a6a752e3c432178cb1e3c633e0bec 100644
--- a/src/main/java/com/destroystokyo/paper/Metrics.java
+++ b/src/main/java/com/destroystokyo/paper/Metrics.java
@@ -593,8 +593,7 @@ public class Metrics {
             boolean logFailedRequests = config.getBoolean("logFailedRequests", false);
             // Only start Metrics, if it's enabled in the config
             if (config.getBoolean("enabled", true)) {
-                Metrics metrics = new Metrics("Paper", serverUUID, logFailedRequests, Bukkit.getLogger());
-
+                Metrics metrics = new Metrics("Purpur", serverUUID, logFailedRequests, Bukkit.getLogger()); // Purpur
                 metrics.addCustomChart(new Metrics.SimplePie("minecraft_version", () -> {
                     String minecraftVersion = Bukkit.getVersion();
                     minecraftVersion = minecraftVersion.substring(minecraftVersion.indexOf("MC: ") + 4, minecraftVersion.length() - 1);
@@ -602,8 +601,8 @@ public class Metrics {
                 }));
 
                 metrics.addCustomChart(new Metrics.SingleLineChart("players", () -> Bukkit.getOnlinePlayers().size()));
-                metrics.addCustomChart(new Metrics.SimplePie("online_mode", () -> Bukkit.getOnlineMode() ? "online" : "offline"));
-                metrics.addCustomChart(new Metrics.SimplePie("paper_version", () -> (Metrics.class.getPackage().getImplementationVersion() != null) ? Metrics.class.getPackage().getImplementationVersion() : "unknown"));
+                metrics.addCustomChart(new Metrics.SimplePie("online_mode", () -> Bukkit.getOnlineMode() ? "online" : (PaperConfig.isProxyOnlineMode() ? "bungee" : "offline"))); // Purpur
+                metrics.addCustomChart(new Metrics.SimplePie("purpur_version", () -> (Metrics.class.getPackage().getImplementationVersion() != null) ? Metrics.class.getPackage().getImplementationVersion() : "unknown")); // Purpur
 
                 metrics.addCustomChart(new Metrics.DrilldownPie("java_version", () -> {
                     Map<String, Map<String, Integer>> map = new HashMap<>();
diff --git a/src/main/java/net/minecraft/commands/CommandSourceStack.java b/src/main/java/net/minecraft/commands/CommandSourceStack.java
index cb0045fc4ddd738c45dee89d57b213a633b9a136..6e8111ef16439d2b3025ebe2a0418b245420bd88 100644
--- a/src/main/java/net/minecraft/commands/CommandSourceStack.java
+++ b/src/main/java/net/minecraft/commands/CommandSourceStack.java
@@ -236,6 +236,30 @@ public class CommandSourceStack implements SharedSuggestionProvider, com.destroy
         return this.anchor;
     }
 
+    // Purpur start
+    public void sendSuccess(@Nullable String message) {
+        sendSuccess(message, false);
+    }
+
+    public void sendSuccess(@Nullable String message, boolean broadcastToOps) {
+        if (message == null) {
+            return;
+        }
+        sendSuccess(net.kyori.adventure.text.minimessage.MiniMessage.get().parse(message), broadcastToOps);
+    }
+
+    public void sendSuccess(@Nullable net.kyori.adventure.text.Component message) {
+        sendSuccess(message, false);
+    }
+
+    public void sendSuccess(@Nullable net.kyori.adventure.text.Component message, boolean broadcastToOps) {
+        if (message == null) {
+            return;
+        }
+        sendSuccess(io.papermc.paper.adventure.PaperAdventure.asVanilla(message), broadcastToOps);
+    }
+    // Purpur end
+
     public void sendSuccess(Component message, boolean broadcastToOps) {
         if (this.source.acceptsSuccess() && !this.silent) {
             this.source.sendMessage(message, Util.NIL_UUID);
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index fd3d3e22613511a42f7fc343079b081c72ff3f61..8bf98d8f8e9f0baaf203a9e8d18683236856eab7 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -228,6 +228,15 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
         }
         thread.start(); // Paper - start console thread after MinecraftServer.console & PaperConfig are initialized
         com.destroystokyo.paper.PaperConfig.registerCommands();
+        // Purpur start
+        try {
+            org.purpurmc.purpur.PurpurConfig.init((java.io.File) options.valueOf("purpur-settings"));
+        } catch (Exception e) {
+            DedicatedServer.LOGGER.error("Unable to load server configuration", e);
+            return false;
+        }
+        org.purpurmc.purpur.PurpurConfig.registerCommands();
+        // Purpur end
         com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
         io.papermc.paper.util.ObfHelper.INSTANCE.getClass(); // load mappings for stacktrace deobf and etc.
         io.papermc.paper.brigadier.PaperBrigadierProviderImpl.INSTANCE.getClass(); // init PaperBrigadierProvider
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 4247dcb003626535dbb997f48ad9f61380bd17e9..03a4c5fa746033825c26a031fbf79f721be6fa84 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -169,6 +169,8 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
     public final com.destroystokyo.paper.PaperWorldConfig paperConfig; // Paper
     public final com.destroystokyo.paper.antixray.ChunkPacketBlockController chunkPacketBlockController; // Paper - Anti-Xray
 
+    public final org.purpurmc.purpur.PurpurWorldConfig purpurConfig; // Purpur
+
     public final co.aikar.timings.WorldTimingsHandler timings; // Paper
     public static BlockPos lastPhysicsProblem; // Spigot
     private org.spigotmc.TickLimiter entityLimiter;
@@ -311,6 +313,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
     protected Level(WritableLevelData worlddatamutable, ResourceKey<Level> resourcekey, final DimensionType dimensionmanager, Supplier<ProfilerFiller> supplier, boolean flag, boolean flag1, long i, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.concurrent.Executor executor) { // Paper - Async-Anti-Xray - Pass executor
         this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot
         this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName(), this.spigotConfig); // Paper
+        this.purpurConfig = new org.purpurmc.purpur.PurpurWorldConfig((ServerLevel) this, ((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName(), env); // Purpur
         this.generator = gen;
         this.world = new CraftWorld((ServerLevel) this, gen, biomeProvider, env);
         this.ticksPerAnimalSpawns = this.getCraftServer().getTicksPerAnimalSpawns(); // CraftBukkit
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 310c3e1590465412af6905eab33193c6bf5e5e47..549577e31840ce5f32adb2c0909b915da4362207 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -931,6 +931,7 @@ public final class CraftServer implements Server {
 
         org.spigotmc.SpigotConfig.init((File) console.options.valueOf("spigot-settings")); // Spigot
         com.destroystokyo.paper.PaperConfig.init((File) console.options.valueOf("paper-settings")); // Paper
+        org.purpurmc.purpur.PurpurConfig.init((File) console.options.valueOf("purpur-settings")); // Purpur
         for (ServerLevel world : this.console.getAllLevels()) {
             // world.serverLevelData.setDifficulty(config.difficulty); // Paper - per level difficulty
             world.setSpawnSettings(world.serverLevelData.getDifficulty() != Difficulty.PEACEFUL && config.spawnMonsters, config.spawnAnimals); // Paper - per level difficulty (from MinecraftServer#setDifficulty(ServerLevel, Difficulty, boolean))
@@ -971,6 +972,7 @@ public final class CraftServer implements Server {
             }
             world.spigotConfig.init(); // Spigot
             world.paperConfig.init(); // Paper
+            world.purpurConfig.init(); // Purpur
         }
 
         Plugin[] pluginClone = pluginManager.getPlugins().clone(); // Paper
@@ -986,6 +988,7 @@ public final class CraftServer implements Server {
         this.reloadData();
         org.spigotmc.SpigotConfig.registerCommands(); // Spigot
         com.destroystokyo.paper.PaperConfig.registerCommands(); // Paper
+        org.purpurmc.purpur.PurpurConfig.registerCommands(); // Purpur
         this.overrideAllCommandBlockCommands = this.commandsConfiguration.getStringList("command-block-overrides").contains("*");
         this.ignoreVanillaPermissions = this.commandsConfiguration.getBoolean("ignore-vanilla-permissions");
 
@@ -2648,6 +2651,18 @@ public final class CraftServer implements Server {
             return com.destroystokyo.paper.PaperConfig.config;
         }
 
+        // Purpur start
+        @Override
+        public YamlConfiguration getPurpurConfig() {
+            return org.purpurmc.purpur.PurpurConfig.config;
+        }
+
+        @Override
+        public java.util.Properties getServerProperties() {
+            return getProperties().properties;
+        }
+        // Purpur end
+
         @Override
         public void restart() {
             org.spigotmc.RestartCommand.restart();
diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
index deb33456b5b194a662cbdbacf17752c87f2cecaf..8806d26c8d121194dbb8b71edc92e6782a5ea2bb 100644
--- a/src/main/java/org/bukkit/craftbukkit/Main.java
+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
@@ -155,6 +155,14 @@ public class Main {
                         .describedAs("Jar file");
                 // Paper end
 
+                // Purpur Start
+                acceptsAll(asList("purpur", "purpur-settings"), "File for purpur settings")
+                    .withRequiredArg()
+                    .ofType(File.class)
+                    .defaultsTo(new File("purpur.yml"))
+                    .describedAs("Yml file");
+                // Purpur end
+
                 // Paper start
                 acceptsAll(asList("server-name"), "Name of the server")
                         .withRequiredArg()
diff --git a/src/main/java/org/purpurmc/purpur/PurpurConfig.java b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
new file mode 100644
index 0000000000000000000000000000000000000000..fdfb20170c27711085aa0772866876035e0d98c2
--- /dev/null
+++ b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
@@ -0,0 +1,159 @@
+package org.purpurmc.purpur;
+
+import co.aikar.timings.TimingsManager;
+import com.google.common.base.Throwables;
+import com.google.common.collect.ImmutableMap;
+import net.kyori.adventure.bossbar.BossBar;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.world.entity.EntityDimensions;
+import net.minecraft.world.entity.EntityType;
+import org.purpurmc.purpur.command.PurpurCommand;
+import org.purpurmc.purpur.task.TPSBarTask;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.InvalidConfigurationException;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+
+@SuppressWarnings("unused")
+public class PurpurConfig {
+    private static final String HEADER = "This is the main configuration file for Purpur.\n"
+            + "As you can see, there's tons to configure. Some options may impact gameplay, so use\n"
+            + "with caution, and make sure you know what each option does before configuring.\n"
+            + "\n"
+            + "If you need help with the configuration or have any questions related to Purpur,\n"
+            + "join us in our Discord guild.\n"
+            + "\n"
+            + "Website: https://purpurmc.org \n"
+            + "Docs: https://purpurmc.org/docs \n";
+    private static File CONFIG_FILE;
+    public static YamlConfiguration config;
+
+    private static Map<String, Command> commands;
+
+    public static int version;
+    static boolean verbose;
+
+    public static void init(File configFile) {
+        CONFIG_FILE = configFile;
+        config = new YamlConfiguration();
+        try {
+            config.load(CONFIG_FILE);
+        } catch (IOException ignore) {
+        } catch (InvalidConfigurationException ex) {
+            Bukkit.getLogger().log(Level.SEVERE, "Could not load purpur.yml, please correct your syntax errors", ex);
+            throw Throwables.propagate(ex);
+        }
+        config.options().header(HEADER);
+        config.options().copyDefaults(true);
+        verbose = getBoolean("verbose", false);
+
+        commands = new HashMap<>();
+        commands.put("purpur", new PurpurCommand("purpur"));
+
+        version = getInt("config-version", 23);
+        set("config-version", 23);
+
+        readConfig(PurpurConfig.class, null);
+    }
+
+    protected static void log(String s) {
+        if (verbose) {
+            log(Level.INFO, s);
+        }
+    }
+
+    protected static void log(Level level, String s) {
+        Bukkit.getLogger().log(level, s);
+    }
+
+    public static void registerCommands() {
+        for (Map.Entry<String, Command> entry : commands.entrySet()) {
+            MinecraftServer.getServer().server.getCommandMap().register(entry.getKey(), "Purpur", entry.getValue());
+        }
+    }
+
+    static void readConfig(Class<?> clazz, Object instance) {
+        for (Method method : clazz.getDeclaredMethods()) {
+            if (Modifier.isPrivate(method.getModifiers())) {
+                if (method.getParameterTypes().length == 0 && method.getReturnType() == Void.TYPE) {
+                    try {
+                        method.setAccessible(true);
+                        method.invoke(instance);
+                    } catch (InvocationTargetException ex) {
+                        throw Throwables.propagate(ex.getCause());
+                    } catch (Exception ex) {
+                        Bukkit.getLogger().log(Level.SEVERE, "Error invoking " + method, ex);
+                    }
+                }
+            }
+        }
+
+        try {
+            config.save(CONFIG_FILE);
+        } catch (IOException ex) {
+            Bukkit.getLogger().log(Level.SEVERE, "Could not save " + CONFIG_FILE, ex);
+        }
+    }
+
+    private static void set(String path, Object val) {
+        config.addDefault(path, val);
+        config.set(path, val);
+    }
+
+    private static String getString(String path, String def) {
+        config.addDefault(path, def);
+        return config.getString(path, config.getString(path));
+    }
+
+    private static boolean getBoolean(String path, boolean def) {
+        config.addDefault(path, def);
+        return config.getBoolean(path, config.getBoolean(path));
+    }
+
+    private static double getDouble(String path, double def) {
+        config.addDefault(path, def);
+        return config.getDouble(path, config.getDouble(path));
+    }
+
+    private static int getInt(String path, int def) {
+        config.addDefault(path, def);
+        return config.getInt(path, config.getInt(path));
+    }
+
+    private static <T> List getList(String path, T def) {
+        config.addDefault(path, def);
+        return config.getList(path, config.getList(path));
+    }
+
+    static Map<String, Object> getMap(String path, Map<String, Object> def) {
+        if (def != null && config.getConfigurationSection(path) == null) {
+            config.addDefault(path, def);
+            return def;
+        }
+        return toMap(config.getConfigurationSection(path));
+    }
+
+    private static Map<String, Object> toMap(ConfigurationSection section) {
+        ImmutableMap.Builder<String, Object> builder = ImmutableMap.builder();
+        if (section != null) {
+            for (String key : section.getKeys(false)) {
+                Object obj = section.get(key);
+                if (obj != null) {
+                    builder.put(key, obj instanceof ConfigurationSection val ? toMap(val) : obj);
+                }
+            }
+        }
+        return builder.build();
+    }
+}
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
new file mode 100644
index 0000000000000000000000000000000000000000..41e1c1c801f7734d123e7e8fb68b84167d49ff6c
--- /dev/null
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -0,0 +1,96 @@
+package org.purpurmc.purpur;
+
+import net.minecraft.core.Registry;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.Difficulty;
+import net.minecraft.world.item.DyeColor;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.Items;
+import net.minecraft.world.level.Explosion;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.state.properties.Tilt;
+import org.purpurmc.purpur.tool.Strippable;
+import org.purpurmc.purpur.tool.Tillable;
+import org.purpurmc.purpur.tool.Waxable;
+import org.purpurmc.purpur.tool.Weatherable;
+import org.apache.commons.lang.BooleanUtils;
+import org.bukkit.ChatColor;
+import org.bukkit.World;
+import org.bukkit.configuration.ConfigurationSection;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;
+import java.util.logging.Level;
+import static org.purpurmc.purpur.PurpurConfig.log;
+
+@SuppressWarnings("unused")
+public class PurpurWorldConfig {
+
+    private final ServerLevel level;
+    private final String worldName;
+    private final World.Environment environment;
+
+    public PurpurWorldConfig(ServerLevel level, String worldName, World.Environment environment) {
+        this.level = level;
+        this.worldName = worldName;
+        this.environment = environment;
+        init();
+    }
+
+    public void init() {
+        log("-------- World Settings For [" + worldName + "] --------");
+        PurpurConfig.readConfig(PurpurWorldConfig.class, this);
+    }
+
+    private void set(String path, Object val) {
+        PurpurConfig.config.addDefault("world-settings.default." + path, val);
+        PurpurConfig.config.set("world-settings.default." + path, val);
+        if (PurpurConfig.config.get("world-settings." + worldName + "." + path) != null) {
+            PurpurConfig.config.addDefault("world-settings." + worldName + "." + path, val);
+            PurpurConfig.config.set("world-settings." + worldName + "." + path, val);
+        }
+    }
+
+    private ConfigurationSection getConfigurationSection(String path) {
+        ConfigurationSection section = PurpurConfig.config.getConfigurationSection("world-settings." + worldName + "." + path);
+        return section != null ? section : PurpurConfig.config.getConfigurationSection("world-settings.default." + path);
+    }
+
+    private String getString(String path, String def) {
+        PurpurConfig.config.addDefault("world-settings.default." + path, def);
+        return PurpurConfig.config.getString("world-settings." + worldName + "." + path, PurpurConfig.config.getString("world-settings.default." + path));
+    }
+
+    private boolean getBoolean(String path, boolean def) {
+        PurpurConfig.config.addDefault("world-settings.default." + path, def);
+        return PurpurConfig.config.getBoolean("world-settings." + worldName + "." + path, PurpurConfig.config.getBoolean("world-settings.default." + path));
+    }
+
+    private double getDouble(String path, double def) {
+        PurpurConfig.config.addDefault("world-settings.default." + path, def);
+        return PurpurConfig.config.getDouble("world-settings." + worldName + "." + path, PurpurConfig.config.getDouble("world-settings.default." + path));
+    }
+
+    private int getInt(String path, int def) {
+        PurpurConfig.config.addDefault("world-settings.default." + path, def);
+        return PurpurConfig.config.getInt("world-settings." + worldName + "." + path, PurpurConfig.config.getInt("world-settings.default." + path));
+    }
+
+    private <T> List<?> getList(String path, T def) {
+        PurpurConfig.config.addDefault("world-settings.default." + path, def);
+        return PurpurConfig.config.getList("world-settings." + worldName + "." + path, PurpurConfig.config.getList("world-settings.default." + path));
+    }
+
+    private Map<String, Object> getMap(String path, Map<String, Object> def) {
+        final Map<String, Object> fallback = PurpurConfig.getMap("world-settings.default." + path, def);
+        final Map<String, Object> value = PurpurConfig.getMap("world-settings." + worldName + "." + path, null);
+        return value.isEmpty() ? fallback : value;
+    }
+}
diff --git a/src/main/java/org/purpurmc/purpur/command/PurpurCommand.java b/src/main/java/org/purpurmc/purpur/command/PurpurCommand.java
new file mode 100644
index 0000000000000000000000000000000000000000..afdf04f8b22ad0b7c0b41675e44687b49c2f86d6
--- /dev/null
+++ b/src/main/java/org/purpurmc/purpur/command/PurpurCommand.java
@@ -0,0 +1,65 @@
+package org.purpurmc.purpur.command;
+
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerLevel;
+import org.purpurmc.purpur.PurpurConfig;
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+
+import java.io.File;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class PurpurCommand extends Command {
+    public PurpurCommand(String name) {
+        super(name);
+        this.description = "Purpur related commands";
+        this.usageMessage = "/purpur [reload | version]";
+        this.setPermission("bukkit.command.purpur");
+    }
+
+    @Override
+    public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
+        if (args.length == 1) {
+            return Stream.of("reload", "version")
+                    .filter(arg -> arg.startsWith(args[0].toLowerCase()))
+                    .collect(Collectors.toList());
+        }
+        return Collections.emptyList();
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
+        if (!testPermission(sender)) return true;
+
+        if (args.length != 1) {
+            sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
+            return false;
+        }
+
+        if (args[0].equalsIgnoreCase("reload")) {
+            Command.broadcastCommandMessage(sender, ChatColor.RED + "Please note that this command is not supported and may cause issues.");
+            Command.broadcastCommandMessage(sender, ChatColor.RED + "If you encounter any issues please use the /stop command to restart your server.");
+
+            MinecraftServer console = MinecraftServer.getServer();
+            PurpurConfig.init((File) console.options.valueOf("purpur-settings"));
+            for (ServerLevel level : console.getAllLevels()) {
+                level.purpurConfig.init();
+            }
+            console.server.reloadCount++;
+
+            Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Purpur config reload complete.");
+        } else if (args[0].equalsIgnoreCase("version")) {
+            Command verCmd = org.bukkit.Bukkit.getServer().getCommandMap().getCommand("version");
+            if (verCmd != null) {
+                return verCmd.execute(sender, commandLabel, new String[0]);
+            }
+        }
+
+        return true;
+    }
+}