Grasscutters/Grasscutter
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Code Issues Projects Releases Wiki Activity

Merge remote-tracking branch 'upstream/development' into dev-mail

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This commit is contained in:
Benjamin Elsdon 2022-04-26 11:59:16 +08:00
commit 028c7e5604
28 changed files with 696 additions and 125 deletions
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2
.github/workflows/build.yml vendored
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@ -18,7 +18,7 @@ jobs:
uses: actions/setup-java@v3
with:
distribution: temurin
java-version: '16'
java-version: '17'
- name: Run Gradle
run: ./gradlew && ./gradlew jar
- name: Upload build

4
README.md
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@ -24,7 +24,7 @@ EN | [中文](README_zh-CN.md)
### Requirements
* Java SE - 16 ([mirror link](https://github.com/adoptium/temurin16-binaries/releases/tag/jdk-16.0.2+7) since Oracle required an account to download old builds)
* Java SE - 17 ([mirror link](https://github.com/adoptium/temurin17-binaries/releases/tag/jdk-17.0.3+7) since Oracle required an account to download old builds)
**Note:** If you just want to **run it**, then **jre** is fine
@ -142,7 +142,7 @@ character falling from a very high destination, exact location that you marked.
# Quick Troubleshooting
* If compiling wasn't successful, please check your JDK installation (JDK 16 and validated JDK's bin PATH variable)
* If compiling wasn't successful, please check your JDK installation (JDK 17 and validated JDK's bin PATH variable)
* My client doesn't connect, doesn't login, 4206, etc... - Mostly your proxy daemon setup is *the issue*, if using
Fiddler make sure it running on another port except 8888
* Startup sequence: Mongodb > Grasscutter > Proxy daemon (mitmdump, fiddler, etc.) > Client

4
README_zh-CN.md
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@ -24,7 +24,7 @@
### 环境需求
* Java SE - 16 (当您没有Oracle账户，可以使用[镜像](https://github.com/adoptium/temurin16-binaries/releases/tag/jdk-16.0.2+7))
* Java SE - 17 (当您没有Oracle账户，可以使用[镜像](https://mirrors.tuna.tsinghua.edu.cn/Adoptium/17/jdk/))
**注:** 如果您仅仅想要简单地**运行服务端**, 那么使用 **jre** 便足够了
@ -142,6 +142,6 @@ chmod +x gradlew
# 快速排除问题
* 如果编译未能成功,请检查您的jdk安装 (JDK 16并确认jdk处于环境变量`PATH`中
* 如果编译未能成功,请检查您的jdk安装 (JDK 17并确认jdk处于环境变量`PATH`中
* 我的客户端无法登录/连接, 4206, 其它... - 大部分情况下这是因为您的代理存在问题.如果使用Fiddler请确认Fiddler监听端口不是`8888`
* 启动顺序: MongoDB > Grasscutter > 代理程序 (mitmdump, fiddler等.) > 客户端

4
build.gradle
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@ -14,8 +14,8 @@ plugins {
id 'application'
}
sourceCompatibility = 16
targetCompatibility = 16
sourceCompatibility = 17
targetCompatibility = 17
repositories {
mavenCentral()

3
src/main/java/emu/grasscutter/Config.java
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@ -1,7 +1,5 @@
package emu.grasscutter;
import java.util.ArrayList;
public final class Config {
public String DatabaseUrl = "mongodb://localhost:27017";
@ -12,6 +10,7 @@ public final class Config {
public String PACKETS_FOLDER = "./packets/";
public String DUMPS_FOLDER = "./dumps/";
public String KEY_FOLDER = "./keys/";
public String PLUGINS_FOLDER = "./plugins/";
public String RunMode = "HYBRID"; // HYBRID, DISPATCH_ONLY, GAME_ONLY
public GameServerOptions GameServer = new GameServerOptions();

55
src/main/java/emu/grasscutter/Grasscutter.java
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@ -8,6 +8,7 @@ import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import emu.grasscutter.command.CommandMap;
import emu.grasscutter.plugin.PluginManager;
import emu.grasscutter.utils.Utils;
import org.reflections.Reflections;
import org.slf4j.LoggerFactory;
@ -33,8 +34,9 @@ public final class Grasscutter {
public static RunMode MODE = RunMode.BOTH;
private static DispatchServer dispatchServer;
private static GameServer gameServer;
private static PluginManager pluginManager;
public static final Reflections reflector = new Reflections("emu.grasscutter");
public static final Reflections reflector = new Reflections();
static {
// Declare logback configuration.
@ -52,15 +54,11 @@ public final class Grasscutter {
for (String arg : args) {
switch (arg.toLowerCase()) {
case "-auth":
MODE = RunMode.AUTH;
break;
case "-game":
MODE = RunMode.GAME;
break;
case "-handbook":
Tools.createGmHandbook();
return;
case "-auth" -> MODE = RunMode.AUTH;
case "-game" -> MODE = RunMode.GAME;
case "-handbook" -> {
Tools.createGmHandbook(); return;
}
}
}
@ -72,18 +70,20 @@ public final class Grasscutter {
// Database
DatabaseManager.initialize();
// Create server instances.
dispatchServer = new DispatchServer();
gameServer = new GameServer(new InetSocketAddress(getConfig().getGameServerOptions().Ip, getConfig().getGameServerOptions().Port));
// Create plugin manager instance.
pluginManager = new PluginManager();
// Start servers.
if(getConfig().RunMode.equalsIgnoreCase("HYBRID")) {
dispatchServer = new DispatchServer();
dispatchServer.start();
gameServer = new GameServer(new InetSocketAddress(getConfig().getGameServerOptions().Ip, getConfig().getGameServerOptions().Port));
gameServer.start();
} else if (getConfig().RunMode.equalsIgnoreCase("DISPATCH_ONLY")) {
dispatchServer = new DispatchServer();
dispatchServer.start();
} else if (getConfig().RunMode.equalsIgnoreCase("GAME_ONLY")) {
gameServer = new GameServer(new InetSocketAddress(getConfig().getGameServerOptions().Ip, getConfig().getGameServerOptions().Port));
gameServer.start();
} else {
getLogger().error("Invalid server run mode. " + getConfig().RunMode);
@ -92,10 +92,21 @@ public final class Grasscutter {
System.exit(1);
}
// Enable all plugins.
pluginManager.enablePlugins();
// Open console.
startConsole();
// Hook into shutdown event.
Runtime.getRuntime().addShutdownHook(new Thread(Grasscutter::onShutdown));
}
/**
* Server shutdown event.
*/
private static void onShutdown() {
// Disable all plugins.
pluginManager.disablePlugins();
}
public static void loadConfig() {
@ -112,7 +123,7 @@ public final class Grasscutter {
try (FileWriter file = new FileWriter(configFile)) {
file.write(gson.toJson(config));
} catch (Exception e) {
Grasscutter.getLogger().error("Config save error");
Grasscutter.getLogger().error("Unable to save config file.");
}
}
@ -123,13 +134,13 @@ public final class Grasscutter {
while ((input = br.readLine()) != null) {
try {
if(getConfig().RunMode.equalsIgnoreCase("DISPATCH_ONLY")) {
getLogger().error("Commands are not supported in dispatch only mode");
getLogger().error("Commands are not supported in dispatch only mode.");
return;
}
CommandMap.getInstance().invoke(null, input);
} catch (Exception e) {
Grasscutter.getLogger().error("Command error: ");
e.printStackTrace();
Grasscutter.getLogger().error("Command error:", e);
}
}
} catch (Exception e) {
@ -162,4 +173,8 @@ public final class Grasscutter {
public static GameServer getGameServer() {
return gameServer;
}
public static PluginManager getPluginManager() {
return pluginManager;
}
}

30
src/main/java/emu/grasscutter/command/commands/ClearArtifactsCommand.java
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@ -1,30 +0,0 @@
package emu.grasscutter.command.commands;
import emu.grasscutter.command.Command;
import emu.grasscutter.command.CommandHandler;
import emu.grasscutter.game.GenshinPlayer;
import emu.grasscutter.game.inventory.Inventory;
import emu.grasscutter.game.inventory.ItemType;
import java.util.List;
@Command(label = "clearartifacts", usage = "clearartifacts",
description = "Deletes all unequipped and unlocked level 0 artifacts, including yellow rarity ones from your inventory",
aliases = {"clearart"}, permission = "player.clearartifacts")
public final class ClearArtifactsCommand implements CommandHandler {
@Override
public void execute(GenshinPlayer sender, List<String> args) {
if (sender == null) {
CommandHandler.sendMessage(null, "Run this command in-game.");
return; // TODO: clear player's artifacts from console or other players
}
Inventory playerInventory = sender.getInventory();
playerInventory.getItems().values().stream()
.filter(item -> item.getItemType() == ItemType.ITEM_RELIQUARY)
.filter(item -> item.getLevel() == 1 && item.getExp() == 0)
.filter(item -> !item.isLocked() && !item.isEquipped())
.forEach(item -> playerInventory.removeItem(item, item.getCount()));
}
}

106
src/main/java/emu/grasscutter/command/commands/ClearCommand.java Normal file
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@ -0,0 +1,106 @@
package emu.grasscutter.command.commands;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.command.Command;
import emu.grasscutter.command.CommandHandler;
import emu.grasscutter.data.GenshinData;
import emu.grasscutter.data.def.ItemData;
import emu.grasscutter.game.GenshinPlayer;
import emu.grasscutter.game.inventory.GenshinItem;
import emu.grasscutter.game.inventory.Inventory;
import emu.grasscutter.game.inventory.ItemType;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
@Command(label = "clear", usage = "clear <all|wp|art|mat>", //Merged /clearartifacts and /clearweapons to /clear <args> [uid]
description = "Deletes unequipped unlocked items, including yellow rarity ones from your inventory",
aliases = {"clear"}, permission = "player.clearinv")
public final class ClearCommand implements CommandHandler {
@Override
public void execute(GenshinPlayer sender, List<String> args) {
int target;
if (sender == null) {
CommandHandler.sendMessage(null, "Run this command in-game.");
return;
}
String cmdSwitch = args.get(1);
Inventory playerInventory = sender.getInventory();
try {
target = Integer.parseInt(args.get(0));
GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
if (targetPlayer == null && sender != null) {
target = sender.getUid();
} else {
switch (cmdSwitch){
case "wp":
playerInventory.getItems().values().stream()
.filter(item -> item.getItemType() == ItemType.ITEM_WEAPON)
.filter(item -> !item.isLocked() && !item.isEquipped())
.forEach(item -> playerInventory.removeItem(item, item.getCount()));
sender.dropMessage("Cleared weapons for " + targetPlayer.getNickname() + " .");
break;
case "art":
playerInventory.getItems().values().stream()
.filter(item -> item.getItemType() == ItemType.ITEM_RELIQUARY)
.filter(item -> item.getLevel() == 1 && item.getExp() == 0)
.filter(item -> !item.isLocked() && !item.isEquipped())
.forEach(item -> playerInventory.removeItem(item, item.getCount()));
sender.dropMessage("Cleared artifacts for " + targetPlayer.getNickname() + " .");
break;
case "mat":
playerInventory.getItems().values().stream()
.filter(item -> item.getItemType() == ItemType.ITEM_MATERIAL)
.filter(item -> item.getLevel() == 1 && item.getExp() == 0)
.filter(item -> !item.isLocked() && !item.isEquipped())
.forEach(item -> playerInventory.removeItem(item, item.getCount()));
sender.dropMessage("Cleared artifacts for " + targetPlayer.getNickname() + " .");
break;
case "all":
playerInventory.getItems().values().stream()
.filter(item1 -> item1.getItemType() == ItemType.ITEM_RELIQUARY)
.filter(item1 -> item1.getLevel() == 1 && item1.getExp() == 0)
.filter(item1 -> !item1.isLocked() && !item1.isEquipped())
.forEach(item1 -> playerInventory.removeItem(item1, item1.getCount()));
playerInventory.getItems().values().stream()
.filter(item2 -> item2.getItemType() == ItemType.ITEM_MATERIAL)
.filter(item2 -> !item2.isLocked() && !item2.isEquipped())
.forEach(item2 -> playerInventory.removeItem(item2, item2.getCount()));
playerInventory.getItems().values().stream()
.filter(item3 -> item3.getItemType() == ItemType.ITEM_WEAPON)
.filter(item3 -> item3.getLevel() == 1 && item3.getExp() == 0)
.filter(item3 -> !item3.isLocked() && !item3.isEquipped())
.forEach(item3 -> playerInventory.removeItem(item3, item3.getCount()));
playerInventory.getItems().values().stream()
.filter(item4 -> item4.getItemType() == ItemType.ITEM_FURNITURE)
.filter(item4 -> !item4.isLocked() && !item4.isEquipped())
.forEach(item4 -> playerInventory.removeItem(item4, item4.getCount()));
playerInventory.getItems().values().stream()
.filter(item5 -> item5.getItemType() == ItemType.ITEM_DISPLAY)
.filter(item5 -> !item5.isLocked() && !item5.isEquipped())
.forEach(item5 -> playerInventory.removeItem(item5, item5.getCount()));
playerInventory.getItems().values().stream()
.filter(item6 -> item6.getItemType() == ItemType.ITEM_VIRTUAL)
.filter(item6 -> !item6.isLocked() && !item6.isEquipped())
.forEach(item6 -> playerInventory.removeItem(item6, item6.getCount()));
sender.dropMessage("Cleared everything for " + targetPlayer.getNickname() + " .");
break;
}
}
} catch (NumberFormatException ignored) {
// TODO: Parse from item name using GM Handbook.
CommandHandler.sendMessage(sender, "Invalid playerId.");
return;
}
GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
if (targetPlayer == null) {
CommandHandler.sendMessage(sender, "Player not found.");
return;
}
}
}

51
src/main/java/emu/grasscutter/command/commands/ClearWeaponsCommand.java
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@ -1,51 +0,0 @@
package emu.grasscutter.command.commands;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.command.Command;
import emu.grasscutter.command.CommandHandler;
import emu.grasscutter.game.GenshinPlayer;
import emu.grasscutter.game.inventory.Inventory;
import emu.grasscutter.game.inventory.ItemType;
import java.util.List;
@Command(label = "clearweapons", usage = "clearweapons",
description = "Deletes all unequipped and unlocked weapons, including yellow rarity ones from your inventory",
aliases = {"clearwp"}, permission = "player.clearweapons")
public final class ClearWeaponsCommand implements CommandHandler {
@Override
public void execute(GenshinPlayer sender, List<String> args) {
if (sender == null) {
CommandHandler.sendMessage(null, "Run this command in-game.");
return;
}
int target;
if (args.size() == 1) {
try {
target = Integer.parseInt(args.get(0));
if (Grasscutter.getGameServer().getPlayerByUid(target) == null) {
target = sender.getUid();
}
} catch (NumberFormatException e) {
CommandHandler.sendMessage(sender, "Invalid player id.");
return;
}
} else {
target = sender.getUid();
}
GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
if (targetPlayer == null) {
CommandHandler.sendMessage(sender, "Player not found.");
return;
}
Inventory playerInventory = targetPlayer.getInventory();
playerInventory.getItems().values().stream()
.filter(item -> item.getItemType() == ItemType.ITEM_WEAPON)
.filter(item -> !item.isLocked() && !item.isEquipped())
.forEach(item -> playerInventory.removeItem(item, item.getCount()));
sender.dropMessage("Cleared weapons for " + targetPlayer.getNickname() + " .");
}
}

68
src/main/java/emu/grasscutter/command/commands/KillCharacterCommand.java Normal file
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@ -0,0 +1,68 @@
package emu.grasscutter.command.commands;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.command.Command;
import emu.grasscutter.command.CommandHandler;
import emu.grasscutter.game.GenshinPlayer;
import emu.grasscutter.game.entity.EntityAvatar;
import emu.grasscutter.game.props.FightProperty;
import emu.grasscutter.game.props.LifeState;
import emu.grasscutter.server.packet.send.PacketEntityFightPropUpdateNotify;
import emu.grasscutter.server.packet.send.PacketLifeStateChangeNotify;
import java.util.List;
@Command(label = "killcharacter", usage = "killcharacter [playerId]", aliases = {"suicide", "kill"},
description = "Kills the players current character", permission = "player.killcharacter")
public final class KillCharacterCommand implements CommandHandler {
@Override
public void execute(GenshinPlayer sender, List<String> args) {
int target;
if (sender == null) {
// from console
if (args.size() == 1) {
try {
target = Integer.parseInt(args.get(0));
} catch (NumberFormatException e) {
CommandHandler.sendMessage(null, "Invalid player id.");
return;
}
} else {
CommandHandler.sendMessage(null, "Usage: /killcharacter [playerId]");
return;
}
} else {
if (args.size() == 1) {
try {
target = Integer.parseInt(args.get(0));
if (Grasscutter.getGameServer().getPlayerByUid(target) == null) {
target = sender.getUid();
}
} catch (NumberFormatException e) {
CommandHandler.sendMessage(sender, "Invalid player id.");
return;
}
} else {
target = sender.getUid();
}
}
GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
if (targetPlayer == null) {
CommandHandler.sendMessage(sender, "Player not found or offline.");
return;
}
EntityAvatar entity = targetPlayer.getTeamManager().getCurrentAvatarEntity();
entity.setFightProperty(FightProperty.FIGHT_PROP_CUR_HP, 0f);
// Packets
entity.getWorld().broadcastPacket(new PacketEntityFightPropUpdateNotify(entity, FightProperty.FIGHT_PROP_CUR_HP));
entity.getWorld().broadcastPacket(new PacketLifeStateChangeNotify(0, entity, LifeState.LIFE_DEAD));
// remove
targetPlayer.getScene().removeEntity(entity);
entity.onDeath(0);
CommandHandler.sendMessage(sender, "Killed " + targetPlayer.getNickname() + " current character.");
}
}

67
src/main/java/emu/grasscutter/plugin/Plugin.java Normal file
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@ -0,0 +1,67 @@
package emu.grasscutter.plugin;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.server.game.GameServer;
/**
* The base class for all plugins to extend.
*/
public abstract class Plugin {
private PluginIdentifier identifier;
/**
* This method is reflected into.
*
* Set plugin variables.
* @param identifier The plugin's identifier.
*/
private void initializePlugin(PluginIdentifier identifier) {
if(this.identifier == null)
this.identifier = identifier;
else Grasscutter.getLogger().warn(this.identifier.name + " had a reinitialization attempt.");
}
/**
* The plugin's identifier instance.
* @return An instance of {@link PluginIdentifier}.
*/
public final PluginIdentifier getIdentifier(){
return this.identifier;
}
/**
* Get the plugin's name.
*/
public final String getName() {
return this.identifier.name;
}
/**
* Get the plugin's description.
*/
public final String getDescription() {
return this.identifier.description;
}
/**
* Get the plugin's version.
*/
public final String getVersion() {
return this.identifier.version;
}
/**
* Returns the server that initialized the plugin.
* @return A server instance.
*/
public final GameServer getServer() {
return Grasscutter.getGameServer();
}
/* Called when the plugin is first loaded. */
public void onLoad() { }
/* Called after (most of) the server enables. */
public void onEnable() { }
/* Called before the server disables. */
public void onDisable() { }
}

18
src/main/java/emu/grasscutter/plugin/PluginConfig.java Normal file
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@ -0,0 +1,18 @@
package emu.grasscutter.plugin;
/**
* The data contained in the plugin's `plugin.json` file.
*/
public final class PluginConfig {
public String name, description, version;
public String mainClass;
public String[] authors;
/**
* Attempts to validate this config instance.
* @return True if the config is valid, false otherwise.
*/
public boolean validate() {
return name != null && description != null && mainClass != null;
}
}

29
src/main/java/emu/grasscutter/plugin/PluginIdentifier.java Normal file
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@ -0,0 +1,29 @@
package emu.grasscutter.plugin;
// TODO: Potentially replace with Lombok?
public final class PluginIdentifier {
public final String name, description, version;
public final String[] authors;
public PluginIdentifier(
String name, String description, String version,
String[] authors
) {
this.name = name;
this.description = description;
this.version = version;
this.authors = authors;
}
/**
* Converts a {@link PluginConfig} into a {@link PluginIdentifier}.
*/
public static PluginIdentifier fromPluginConfig(PluginConfig config) {
if(!config.validate())
throw new IllegalArgumentException("A valid plugin config is required to convert into a plugin identifier.");
return new PluginIdentifier(
config.name, config.description, config.version,
config.authors
);
}
}

152
src/main/java/emu/grasscutter/plugin/PluginManager.java Normal file
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@ -0,0 +1,152 @@
package emu.grasscutter.plugin;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.server.event.Event;
import emu.grasscutter.server.event.EventHandler;
import emu.grasscutter.server.event.Listener;
import emu.grasscutter.utils.Utils;
import org.reflections.Reflections;
import java.io.File;
import java.io.InputStreamReader;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.*;
/**
* Manages the server's plugins & the event system.
*/
public final class PluginManager {
private final Map<String, Plugin> plugins = new HashMap<>();
private final Map<Plugin, List<Listener>> listeners = new HashMap<>();
public PluginManager() {
this.loadPlugins(); // Load all plugins from the plugins directory.
}
/**
* Loads plugins from the config-specified directory.
*/
private void loadPlugins() {
String directory = Grasscutter.getConfig().PLUGINS_FOLDER;
File pluginsDir = new File(Utils.toFilePath(directory));
if(!pluginsDir.exists() && !pluginsDir.mkdirs()) {
Grasscutter.getLogger().error("Failed to create plugins directory: " + pluginsDir.getAbsolutePath());
return;
}
File[] files = pluginsDir.listFiles();
if(files == null) {
// The directory is empty, there aren't any plugins to load.
return;
}
List<File> plugins = Arrays.stream(files)
.filter(file -> file.getName().endsWith(".jar"))
.toList();
plugins.forEach(plugin -> {
try {
URL url = plugin.toURI().toURL();
try (URLClassLoader loader = new URLClassLoader(new URL[]{url})) {
URL configFile = loader.findResource("plugin.json");
InputStreamReader fileReader = new InputStreamReader(configFile.openStream());
PluginConfig pluginConfig = Grasscutter.getGsonFactory().fromJson(fileReader, PluginConfig.class);
if(!pluginConfig.validate()) {
Utils.logObject(pluginConfig);
Grasscutter.getLogger().warn("Plugin " + plugin.getName() + " has an invalid config file.");
return;
}
Class<?> pluginClass = loader.loadClass(pluginConfig.mainClass);
Plugin pluginInstance = (Plugin) pluginClass.getDeclaredConstructor().newInstance();
this.loadPlugin(pluginInstance, PluginIdentifier.fromPluginConfig(pluginConfig));
fileReader.close(); // Close the file reader.
} catch (ClassNotFoundException ignored) {
Grasscutter.getLogger().warn("Plugin " + plugin.getName() + " has an invalid main class.");
}
} catch (Exception exception) {
Grasscutter.getLogger().error("Failed to load plugin: " + plugin.getName(), exception);
}
});
}
/**
* Load the specified plugin.
* @param plugin The plugin instance.
*/
private void loadPlugin(Plugin plugin, PluginIdentifier identifier) {
Grasscutter.getLogger().info("Loading plugin: " + identifier.name);
// Add the plugin's identifier.
try {
Class<Plugin> pluginClass = Plugin.class;
Method method = pluginClass.getDeclaredMethod("initializePlugin", PluginIdentifier.class);
method.setAccessible(true); method.invoke(plugin, identifier); method.setAccessible(false);
} catch (Exception ignored) {
Grasscutter.getLogger().warn("Failed to add plugin identifier: " + identifier.name);
}
// Add the plugin to the list of loaded plugins.
this.plugins.put(identifier.name, plugin);
// Call the plugin's onLoad method.
plugin.onLoad();
}
/**
* Enables all registered plugins.
*/
public void enablePlugins() {
this.plugins.forEach((name, plugin) -> {
Grasscutter.getLogger().info("Enabling plugin: " + name);
plugin.onEnable();
});
}
/**
* Disables all registered plugins.
*/
public void disablePlugins() {
this.plugins.forEach((name, plugin) -> {
Grasscutter.getLogger().info("Disabling plugin: " + name);
plugin.onDisable();
});
}
/**
* Registers a plugin's event listener.
* @param plugin The plugin instance.
* @param listener The event listener.
*/
public void registerListener(Plugin plugin, Listener listener) {
this.listeners.computeIfAbsent(plugin, k -> new ArrayList<>()).add(listener);
}
/**
* Invoke the provided event on all registered event listeners.
* @param event The event to invoke.
*/
public void invokeEvent(Event event) {
this.listeners.values().stream()
.flatMap(Collection::stream)
.forEach(listener -> this.invokeOnListener(listener, event));
}
/**
* Attempts to invoke the event on the provided listener.
*/
private void invokeOnListener(Listener listener, Event event) {
try {
Class<?> listenerClass = listener.getClass();
Method[] methods = listenerClass.getMethods();
for (Method method : methods) {
if(!method.isAnnotationPresent(EventHandler.class)) return;
if(!method.getParameterTypes()[0].isAssignableFrom(event.getClass())) return;
method.invoke(listener, event);
}
} catch (Exception ignored) { }
}
}

8
src/main/java/emu/grasscutter/server/dispatch/DispatchServer.java
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@ -18,6 +18,8 @@ import emu.grasscutter.net.proto.RegionInfoOuterClass.RegionInfo;
import emu.grasscutter.net.proto.RegionSimpleInfoOuterClass.RegionSimpleInfo;
import emu.grasscutter.server.dispatch.json.*;
import emu.grasscutter.server.dispatch.json.ComboTokenReqJson.LoginTokenData;
import emu.grasscutter.server.event.dispatch.QueryAllRegionsEvent;
import emu.grasscutter.server.event.dispatch.QueryCurrentRegionEvent;
import emu.grasscutter.utils.FileUtils;
import emu.grasscutter.utils.Utils;
@ -277,7 +279,11 @@ public final class DispatchServer {
if (uri.getQuery() != null && uri.getQuery().length() > 0) {
response = regionCurrentBase64;
}
responseHTML(t, response);
// Invoke event.
QueryCurrentRegionEvent event = new QueryCurrentRegionEvent(response); event.call();
// Respond with event result.
responseHTML(t, event.getRegionInfo());
});
}

8
src/main/java/emu/grasscutter/server/event/Cancellable.java Normal file
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@ -0,0 +1,8 @@
package emu.grasscutter.server.event;
/**
* Implementing this interface marks an event as cancellable.
*/
public interface Cancellable {
void cancel();
}

32
src/main/java/emu/grasscutter/server/event/Event.java Normal file
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@ -0,0 +1,32 @@
package emu.grasscutter.server.event;
import emu.grasscutter.Grasscutter;
/**
* A generic server event.
*/
public abstract class Event {
private boolean cancelled = false;
/**
* Return the cancelled state of the event.
*/
public boolean isCanceled() {
return this.cancelled;
}
/**
* Cancels the event if possible.
*/
public void cancel() {
if(this instanceof Cancellable)
this.cancelled = true;
}
/**
* Pushes this event to all listeners.
*/
public void call() {
Grasscutter.getPluginManager().invokeEvent(this);
}
}

11
src/main/java/emu/grasscutter/server/event/EventHandler.java Normal file
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@ -0,0 +1,11 @@
package emu.grasscutter.server.event;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* Declares a class as an event listener/handler.
*/
@Retention(RetentionPolicy.RUNTIME)
public @interface EventHandler {
}

7
src/main/java/emu/grasscutter/server/event/Listener.java Normal file
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@ -0,0 +1,7 @@
package emu.grasscutter.server.event;
/**
* Implementing this interface declares a class as an event listener.
*/
public interface Listener {
}

17
src/main/java/emu/grasscutter/server/event/ServerEvent.java Normal file
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@ -0,0 +1,17 @@
package emu.grasscutter.server.event;
/**
* An event that is related to the internals of the server.
*/
public abstract class ServerEvent extends Event {
protected final Type type;
public ServerEvent(Type type) {
this.type = type;
}
public enum Type {
DISPATCH,
GAME
}
}

21
src/main/java/emu/grasscutter/server/event/dispatch/QueryAllRegionsEvent.java Normal file
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@ -0,0 +1,21 @@
package emu.grasscutter.server.event.dispatch;
import emu.grasscutter.server.event.ServerEvent;
public final class QueryAllRegionsEvent extends ServerEvent {
private String regionList;
public QueryAllRegionsEvent(String regionList) {
super(Type.DISPATCH);
this.regionList = regionList;
}
public void setRegionList(String regionList) {
this.regionList = regionList;
}
public String getRegionList() {
return this.regionList;
}
}

21
src/main/java/emu/grasscutter/server/event/dispatch/QueryCurrentRegionEvent.java Normal file
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@ -0,0 +1,21 @@
package emu.grasscutter.server.event.dispatch;
import emu.grasscutter.server.event.ServerEvent;
public final class QueryCurrentRegionEvent extends ServerEvent {
private String regionInfo;
public QueryCurrentRegionEvent(String regionInfo) {
super(Type.DISPATCH);
this.regionInfo = regionInfo;
}
public void setRegionInfo(String regionInfo) {
this.regionInfo = regionInfo;
}
public String getRegionInfo() {
return this.regionInfo;
}
}

35
src/main/java/emu/grasscutter/server/event/game/ReceivePacketEvent.java Normal file
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@ -0,0 +1,35 @@
package emu.grasscutter.server.event.game;
import emu.grasscutter.server.event.Cancellable;
import emu.grasscutter.server.event.ServerEvent;
import emu.grasscutter.server.game.GameSession;
public final class ReceivePacketEvent extends ServerEvent implements Cancellable {
private final GameSession gameSession;
private final int packetId;
private byte[] packetData;
public ReceivePacketEvent(GameSession gameSession, int packetId, byte[] packetData) {
super(Type.GAME);
this.gameSession = gameSession;
this.packetId = packetId;
this.packetData = packetData;
}
public GameSession getGameSession() {
return this.gameSession;
}
public int getPacketId() {
return this.packetId;
}
public void setPacketData(byte[] packetData) {
this.packetData = packetData;
}
public byte[] getPacketData() {
return this.packetData;
}
}

30
src/main/java/emu/grasscutter/server/event/game/SendPacketEvent.java Normal file
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@ -0,0 +1,30 @@
package emu.grasscutter.server.event.game;
import emu.grasscutter.net.packet.GenshinPacket;
import emu.grasscutter.server.event.Cancellable;
import emu.grasscutter.server.event.ServerEvent;
import emu.grasscutter.server.game.GameSession;
public final class SendPacketEvent extends ServerEvent implements Cancellable {
private final GameSession gameSession;
private GenshinPacket packet;
public SendPacketEvent(GameSession gameSession, GenshinPacket packet) {
super(Type.GAME);
this.gameSession = gameSession;
this.packet = packet;
}
public GameSession getGameSession() {
return this.gameSession;
}
public void setPacket(GenshinPacket packet) {
this.packet = packet;
}
public GenshinPacket getPacket() {
return this.packet;
}
}

11
src/main/java/emu/grasscutter/server/game/GameServerPacketHandler.java
View File

@ -2,6 +2,7 @@ package emu.grasscutter.server.game;
import java.util.Set;
import emu.grasscutter.server.event.game.ReceivePacketEvent;
import org.reflections.Reflections;
import emu.grasscutter.Grasscutter;
@ -48,9 +49,7 @@ public class GameServerPacketHandler {
}
public void handle(GameSession session, int opcode, byte[] header, byte[] payload) {
PacketHandler handler = null;
handler = this.handlers.get(opcode);
PacketHandler handler = this.handlers.get(opcode);
if (handler != null) {
try {
@ -77,8 +76,10 @@ public class GameServerPacketHandler {
}
}
// Handle
handler.handle(session, header, payload);
// Invoke event.
ReceivePacketEvent event = new ReceivePacketEvent(session, opcode, payload); event.call();
if(!event.isCanceled()) // If event is not canceled, continue.
handler.handle(session, header, event.getPacketData());
} catch (Exception ex) {
// TODO Remove this when no more needed
ex.printStackTrace();

10
src/main/java/emu/grasscutter/server/game/GameSession.java
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@ -10,6 +10,7 @@ import emu.grasscutter.game.GenshinPlayer;
import emu.grasscutter.net.packet.GenshinPacket;
import emu.grasscutter.net.packet.PacketOpcodesUtil;
import emu.grasscutter.netty.MihoyoKcpChannel;
import emu.grasscutter.server.event.game.SendPacketEvent;
import emu.grasscutter.utils.Crypto;
import emu.grasscutter.utils.FileUtils;
import emu.grasscutter.utils.Utils;
@ -161,16 +162,15 @@ public class GameSession extends MihoyoKcpChannel {
genshinPacket.buildHeader(this.getNextClientSequence());
}
// Build packet
byte[] data = genshinPacket.build();
// Log
if (Grasscutter.getConfig().getGameServerOptions().LOG_PACKETS) {
logPacket(genshinPacket);
}
// Send
send(data);
// Invoke event.
SendPacketEvent event = new SendPacketEvent(this, genshinPacket); event.call();
if(!event.isCanceled()) // If event is not cancelled, continue.
this.send(event.getPacket().build());
}
private void logPacket(int opcode) {

9
src/main/java/emu/grasscutter/utils/Utils.java
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@ -137,6 +137,15 @@ public final class Utils {
return nonNull != null ? nonNull : fallback;
}
/**
* Logs an object to the console.
* @param object The object to log.
*/
public static void logObject(Object object) {
String asJson = Grasscutter.getGsonFactory().toJson(object);
Grasscutter.getLogger().info(asJson);
}
/**
* Checks for required files and folders before startup.
*/

0
src/main/java/META-INF/MANIFEST.MF → src/main/resources/META-INF/MANIFEST.MF
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