Bug

README.md

@@ -18,7 +18,7 @@
 
 ## 下载
 * [自动构建版](https://github.com/zhinghu/CatSeedLogin/actions/workflows/maven.yml)
-* [最新版](https://github.com/zhinghu/CatSeedLogin/releases)
+* [最新版](https://github.com/zhinghu/CatSeedLogin/releases/latest)
 * [旧版](https://github.com/CatSeed/CatSeedLogin/tags)
 
 ## 使用方式

pom.xml

@@ -101,6 +101,11 @@
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-lang3</artifactId>
     <version>3.12.0</version>
+</dependency>
+<dependency>
+    <groupId>commons-net</groupId>
+    <artifactId>commons-net</artifactId>
+    <version>3.11.1</version>
 </dependency>
     </dependencies>
     <repositories>

src/main/java/cc/baka9/catseedlogin/bukkit/Communication.java

@@ -7,6 +7,8 @@
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.UnknownHostException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
@@ -16,71 +18,55 @@
 import cc.baka9.catseedlogin.bukkit.object.LoginPlayerHelper;
 import cc.baka9.catseedlogin.util.CommunicationAuth;
 
-/**
- * bukkit 与 bc 的通讯交流
- */
 public class Communication {
     private static ServerSocket serverSocket;
+    private static final ExecutorService executorService = Executors.newCachedThreadPool();
 
-    /**
-     * 异步关闭 socket server
-     */
     public static void socketServerStopAsync() {
         CatSeedLogin.instance.runTaskAsync(Communication::socketServerStop);
     }
 
-    public static void socketServerStop() {
-
-        if (serverSocket != null && !serverSocket.isClosed()) {
-            try {
-                serverSocket.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-
+    public static synchronized void socketServerStop() {
+        closeServerSocket(serverSocket);
     }
 
-    /**
-     * 异步启动 socket server 监听bc端发来的请求
-     */
     public static void socketServerStartAsync() {
         CatSeedLogin.instance.runTaskAsync(Communication::socketServerStart);
     }
 
-    /**
-     * 启动 socket server 监听bc端发来的请求
-     */
-    private static void socketServerStart() {
+private static synchronized void socketServerStart() {
+    try {
+        InetAddress inetAddress = InetAddress.getByName(Config.BungeeCord.Host);
+        serverSocket = new ServerSocket(Integer.parseInt(Config.BungeeCord.Port), 50, inetAddress);
+        acceptConnections(serverSocket);
+    } catch (UnknownHostException e) {
+        CatSeedLogin.instance.getLogger().warning("无法解析域名或IP地址: " + e.getMessage());
+    } catch (IOException e) {
+        CatSeedLogin.instance.getLogger().warning("启动Socket服务器时发生错误: " + e.getMessage());
+    }
+}
+
+private static void acceptConnections(ServerSocket serverSocket) {
+    while (!serverSocket.isClosed()) {
         try {
-            InetAddress inetAddress = InetAddress.getByName(Config.BungeeCord.Host);
-            serverSocket = new ServerSocket(Integer.parseInt(Config.BungeeCord.Port), 50, inetAddress);
-            while (!serverSocket.isClosed()) {
-                Socket socket;
-                try {
-                    socket = serverSocket.accept();
-                    handleRequest(socket);
-                } catch (IOException e) {
-                    break;
-                }
-            }
-        } catch (UnknownHostException e) {
-            CatSeedLogin.instance.getLogger().warning("无法解析域名或IP地址");
-            e.printStackTrace();
+            Socket socket = serverSocket.accept();
+            executorService.submit(() -> handleRequest(socket));
         } catch (IOException e) {
-            e.printStackTrace();
+            if (serverSocket.isClosed()) {
+                break;
+            }
+            CatSeedLogin.instance.getLogger().warning("接受Socket连接时发生错误: " + e.getMessage());
         }
     }
+}
 
 
-    /**
-     * 处理请求
-     */
-private static void handleRequest(Socket socket) throws IOException {
-    try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()))) {
+private static void handleRequest(Socket socket) {
+    BufferedReader bufferedReader = null;
+    try {
+        bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
         String requestType = bufferedReader.readLine();
         if (requestType == null) {
-            socket.close();
             return;
         }
         String playerName = bufferedReader.readLine();
@@ -94,52 +80,56 @@ private static void handleRequest(Socket socket) throws IOException {
                 handleKeepLoggedInRequest(playerName, time, sign);
                 break;
             default:
+                CatSeedLogin.instance.getLogger().warning("未知请求类型: " + requestType);
                 break;
         }
-    } finally {
-        if (!socket.isClosed()) {
-            socket.close();
-        }
+    } catch (IOException e) {
+        CatSeedLogin.instance.getLogger().warning("处理请求时发生错误: " + e.getMessage());
     }
 }
 
-    private static void handleKeepLoggedInRequest(String playerName, String time, String sign) {
-        // 验证请求的合法性
-        // 对比玩家名，时间戳，和authKey加密的结果（加密是因为如果登录服不在内网环境下，则可能会被人使用这个功能给发包来直接绕过登录）
-        if (CommunicationAuth.encryption(playerName, time, Config.BungeeCord.AuthKey).equals(sign)) {
-            // 切换主线程给予登录状态
-            CatScheduler.runTask( () -> {
-                LoginPlayer lp = Cache.getIgnoreCase(playerName);
-                if (lp != null) {
-                    LoginPlayerHelper.add(lp);
-                    Player player = Bukkit.getPlayerExact(playerName);
-                    if (player != null) {
-                        player.updateInventory();
-                    }
+private static void handleKeepLoggedInRequest(String playerName, String time, String sign) {
+    if (CommunicationAuth.encryption(playerName, time, Config.BungeeCord.AuthKey).equals(sign)) {
+        CatScheduler.runTask(() -> {
+            LoginPlayer lp = Cache.getIgnoreCase(playerName);
+            if (lp != null) {
+                LoginPlayerHelper.add(lp);
+                Player player = Bukkit.getPlayerExact(playerName);
+                if (player != null) {
+                    player.updateInventory();
                 }
-
-            });
-        }
+            } else {
+                CatSeedLogin.instance.getLogger().warning("玩家 " + playerName + " 未找到在缓存中。");
+            }
+        });
     }
+}
 
     private static void handleConnectRequest(Socket socket, String playerName) {
-        // 切换主线程获取是否已登录
-        CatScheduler.runTask( () -> {
+        CatScheduler.runTask(() -> {
             boolean result = LoginPlayerHelper.isLogin(playerName);
-
-            // 切换异步线程返回结果
-            CatSeedLogin.instance.runTaskAsync(() -> {
-                try {
-                    socket.getOutputStream().write(result ? 1 : 0);
-                    socket.close();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-
-            });
-
+            sendConnectResultAsync(socket, result);
         });
     }
 
+    private static void sendConnectResultAsync(Socket socket, boolean result) {
+        executorService.submit(() -> {
+            try (Socket autoCloseSocket = socket) {
+                autoCloseSocket.getOutputStream().write(result ? 1 : 0);
+                autoCloseSocket.getOutputStream().flush();
+            } catch (IOException e) {
+                CatSeedLogin.instance.getLogger().warning("发送连接结果时发生错误: " + e.getMessage());
+            }
+        });
+    }
 
+    private static void closeServerSocket(ServerSocket serverSocket) {
+        if (serverSocket != null && !serverSocket.isClosed()) {
+            try {
+                serverSocket.close();
+            } catch (IOException e) {
+                CatSeedLogin.instance.getLogger().warning("关闭Socket服务器时发生错误: " + e.getMessage());
+            }
+        }
+    }
 }

src/main/java/cc/baka9/catseedlogin/bukkit/Config.java

@@ -1,29 +1,29 @@
 package cc.baka9.catseedlogin.bukkit;
 
-import java.io.BufferedInputStream;
 import java.io.File;
+import java.util.Map;
+import java.util.List;
+import java.util.Optional;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.lang.reflect.Field;
-import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
 import java.util.Properties;
-import java.util.concurrent.ConcurrentHashMap;
+import java.lang.reflect.Field;
 import java.util.regex.Pattern;
+import java.io.InputStreamReader;
+import java.io.BufferedInputStream;
 import java.util.stream.Collectors;
+import java.nio.charset.StandardCharsets;
+import java.util.concurrent.ConcurrentHashMap;
 
+import org.bukkit.World;
 import org.bukkit.Bukkit;
-import org.bukkit.ChatColor;
 import org.bukkit.Location;
-import org.bukkit.World;
+import org.bukkit.ChatColor;
+import org.bukkit.entity.Player;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
-import org.bukkit.entity.Player;
 
 /**
  * 加载/保存/重载 yml配置文件
@@ -95,6 +95,7 @@ public static class Settings {
         public static boolean CanTpSpawnLocation;
         public static List<Pattern> CommandWhiteList = new ArrayList<>();
         public static int AutoKick;
+        public static String NamePattern;
         // 死亡状态退出游戏是否记录退出位置 (玩家可以通过死亡时退出服务器然后重新进入，再复活，登录返回死亡地点)
         public static boolean DeathStateQuitRecordLocation;
         public static boolean FloodgatePrefixProtect;
@@ -115,6 +116,7 @@ public static void load(){
             ReenterInterval = config.getLong("ReenterInterval", resourceConfig.getLong("ReenterInterval"));
             AfterLoginBack = config.getBoolean("AfterLoginBack", resourceConfig.getBoolean("AfterLoginBack"));
             CanTpSpawnLocation = config.getBoolean("CanTpSpawnLocation", resourceConfig.getBoolean("CanTpSpawnLocation"));
+            NamePattern = config.getString("NamePattern", resourceConfig.getString("NamePattern", "^\\w+$"));
             List<String> commandWhiteList = config.getStringList("CommandWhiteList");
             if (commandWhiteList.isEmpty()) {
                 commandWhiteList = resourceConfig.getStringList("CommandWhiteList");
@@ -151,6 +153,7 @@ public static void save(){
             config.set("CommandWhiteList", CommandWhiteList.stream().map(Pattern::toString).collect(Collectors.toList()));
             config.set("DeathStateQuitRecordLocation", DeathStateQuitRecordLocation);
             config.set("FloodgatePrefixProtect", FloodgatePrefixProtect);
+            config.set("NamePattern", NamePattern);
             try {
                 config.save(new File(CatSeedLogin.instance.getDataFolder(), "settings.yml"));
             } catch (IOException e) {

src/main/java/cc/baka9/catseedlogin/bukkit/Listeners.java

@@ -6,28 +6,28 @@
 import org.bukkit.Location;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
-import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerMoveEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.geysermc.floodgate.api.FloodgateApi;
 import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.player.PlayerDropItemEvent;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerTeleportEvent;
+import org.bukkit.event.player.AsyncPlayerChatEvent;
 import org.bukkit.event.entity.EntityPickupItemEvent;
-import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryOpenEvent;
-import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.player.AsyncPlayerPreLoginEvent;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
-import org.bukkit.event.player.PlayerDropItemEvent;
-import org.bukkit.event.player.PlayerInteractEvent;
-import org.bukkit.event.player.PlayerJoinEvent;
-import org.bukkit.event.player.PlayerMoveEvent;
-import org.bukkit.event.player.PlayerQuitEvent;
-import org.bukkit.event.player.PlayerTeleportEvent;
-import org.geysermc.floodgate.api.FloodgateApi;
 
+import cc.baka9.catseedlogin.bukkit.task.Task;
 import cc.baka9.catseedlogin.bukkit.database.Cache;
 import cc.baka9.catseedlogin.bukkit.object.LoginPlayer;
 import cc.baka9.catseedlogin.bukkit.object.LoginPlayerHelper;
-import cc.baka9.catseedlogin.bukkit.task.Task;
 
 public class Listeners implements Listener {
 
@@ -190,7 +190,7 @@ public void onPlayerJoin(PlayerJoinEvent event) {
     @EventHandler
     public void onPlayerPreLogin(AsyncPlayerPreLoginEvent event) {
         String name = event.getName();
-        if (Config.Settings.LimitChineseID && !name.matches("^\\w+$")) {
+        if (Config.Settings.LimitChineseID && !name.matches(Config.Settings.NamePattern)) {
             event.disallow(AsyncPlayerPreLoginEvent.Result.KICK_OTHER, "请使用由数字,字母和下划线组成的游戏名,才能进入游戏");
             return;
         }

src/main/java/cc/baka9/catseedlogin/bukkit/object/LoginPlayerHelper.java

@@ -116,7 +116,7 @@ public static boolean recordCurrentIP(Player player) {
         if (Config.Settings.IPTimeout == 0) {
             return storedIPs.contains(currentIP);
         } else {
-            return exitTime != null && storedIPs.contains(currentIP) && (System.currentTimeMillis() - exitTime) <= (long) Config.Settings.IPTimeout * 60 * 1000;
+            return exitTime != null && storedIPs.contains(currentIP) && (System.currentTimeMillis() - exitTime) <= (long) Config.Settings.IPTimeout * 60 * 1000L;
         }
     }