2.4 Release

Move kickmessage back to config

ISSUE_TEMPLATE.md

@@ -0,0 +1,13 @@
+## Issue
+Include here how the problem occured and how it's reproduceable.
+If present, also paste the entire error message from the console, preferably via a https://hastebin.com/ link.
+
+## Necessary server information
+**Running on**: <BungeeCord/Bukkit>
+
+**Maintenance version**: <>
+
+## Other information
+**Other motd changing plugins**: <>
+
+**ProtocolLib version**: <>

LICENSE.txt

@@ -1,4 +1,4 @@
-                    GNU GENERAL PUBLIC LICENSE
+GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 
  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
@@ -671,4 +671,4 @@ into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

Maintenance-API/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <artifactId>maintenance-base</artifactId>
         <groupId>eu.kennytv</groupId>
-        <version>2.2</version>
+        <version>2.4</version>
     </parent>
 
     <artifactId>maintenance-api</artifactId>
@@ -16,13 +16,13 @@
         <dependency>
             <groupId>net.md-5</groupId>
             <artifactId>bungeecord-api</artifactId>
-            <version>1.12-SNAPSHOT</version>
+            <version>1.13-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot-api</artifactId>
-            <version>1.10.2-R0.1-SNAPSHOT</version>
+            <version>1.12.2-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/IMaintenance.java

@@ -1,9 +1,13 @@
 package eu.kennytv.maintenance.api;
 
+/**
+ * @author KennyTV
+ * @since 2.1
+ */
 public interface IMaintenance {
 
     /**
-     * Enabled/disabled maintenance mode.
+     * Enables/disables maintenance mode.
      * If enabled, all non-permitted players will be kicked.
      * <p>
      * If using the BungeeCord version and MySQL is enabled,
@@ -15,12 +19,12 @@ public interface IMaintenance {
     void setMaintenance(boolean maintenance);
 
     /**
-     * @return true if maintenance is enabled on the proxy
+     * @return true if maintenance is currently enabled
      */
     boolean isMaintenance();
 
     /**
-     * @return true if a timer task is currently running
+     * @return true if a start- or endtimer task is currently running
      */
     boolean isTaskRunning();
 
@@ -30,7 +34,7 @@ public interface IMaintenance {
     String getVersion();
 
     /**
-     * @return {@link ISettings} for more options
+     * @return {@link ISettings} for options regarding configuration files
      */
     ISettings getSettings();
 }

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/IMaintenanceBase.java

@@ -0,0 +1,15 @@
+package eu.kennytv.maintenance.api;
+
+/**
+ * @author KennyTV
+ * @since 2.2.2
+ */
+public interface IMaintenanceBase {
+
+    /**
+     * Returns API instance of IMaintenance.
+     *
+     * @return {@link IMaintenance} instance
+     */
+    IMaintenance getApi();
+}

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/ISettings.java

@@ -3,15 +3,21 @@ package eu.kennytv.maintenance.api;
 import java.util.Map;
 import java.util.UUID;
 
+/**
+ * @author KennyTV
+ * @since 2.1
+ */
 public interface ISettings {
 
     /**
-     * @return true if maintenance is enabled on the proxy
+     * Note that the value might need a few seconds to update, if you're on BungeeCord with MySQL enabled
+     *
+     * @return true if maintenance is currently enabled
      */
     boolean isMaintenance();
 
     /**
-     * @return true if "join-notification" is set to true in the config
+     * @return true if "send-join-notification" is set to true in the config
      */
     boolean isJoinNotifications();
 
@@ -21,9 +27,7 @@ public interface ISettings {
     boolean hasCustomIcon();
 
     /**
-     * The keyset of the map contains the uuids as a string, the values the names of the players.
-     *
-     * @return map of uuids of whitelisted players with their last seen names
+     * @return map of uuids of whitelisted players with their given names
      */
     Map<UUID, String> getWhitelistedPlayers();
 
@@ -38,9 +42,12 @@ public interface ISettings {
     /**
      * Removes a player from the maintenance whitelist.
      *
-     * @param name name of the player to remove in lowercase letters
+     * @param name name of the player to remove with original lower-/uppercase letters
      * @return true if removing the player was successful
+     * @deprecated if a player changes their name, the list will still contain the old one
+     * @see #removeWhitelistedPlayer(UUID)
      */
+    @Deprecated
     boolean removeWhitelistedPlayer(String name);
 
     /**
@@ -51,4 +58,11 @@ public interface ISettings {
      * @return true if adding the player was successful
      */
     boolean addWhitelistedPlayer(UUID uuid, String name);
+
+    /**
+     * Reloads the maintenance-icon.png image from the server folder.
+     *
+     * @return true if loading the image was successful
+     */
+    boolean reloadMaintenanceIcon();
 }

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/MaintenanceBungeeAPI.java

@@ -6,11 +6,11 @@ import net.md_5.bungee.api.plugin.Plugin;
 /**
  * Utility class to get the {@link IMaintenance} instance for the BungeeCord version of the plugin.
  * <p>
- * This class is NOT available for the Spigot version!
+ * Only access this class if you're running the plugin on a BungeeCord server!
  * </p>
  *
  * @author KennyTV
- * @since 1.0
+ * @since 2.1
  */
 public final class MaintenanceBungeeAPI {
 
@@ -24,6 +24,6 @@ public final class MaintenanceBungeeAPI {
         if (maintenance == null)
             ProxyServer.getInstance().getLogger().warning("Could not get instance of MaintenanceBungee!");
 
-        return (IMaintenance) maintenance;
+        return ((IMaintenanceBase) maintenance).getApi();
     }
 }

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/MaintenanceSpigotAPI.java

@@ -1,15 +1,16 @@
 package eu.kennytv.maintenance.api;
 
 import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
 
 /**
- * Utility class to get the {@link IMaintenance} instance for the Spigot/Bukkit version of the plugin.
+ * Utility class to get the {@link IMaintenance} instance for the Spigot version of the plugin.
  * <p>
- * This class is NOT available for the BungeeCord version!
+ * Only access this class if you're running the plugin on a Spigot server!
  * </p>
  *
  * @author KennyTV
- * @since 1.0
+ * @since 2.1
  */
 public final class MaintenanceSpigotAPI {
 
@@ -19,10 +20,10 @@ public final class MaintenanceSpigotAPI {
      * @return {@link IMaintenance} instance
      */
     public static IMaintenance getAPI() {
-        final org.bukkit.plugin.Plugin maintenance = Bukkit.getPluginManager().getPlugin("MaintenanceSpigot");
+        final Plugin maintenance = Bukkit.getPluginManager().getPlugin("MaintenanceSpigot");
         if (maintenance == null)
             Bukkit.getLogger().warning("Could not get instance of MaintenanceSpigot!");
 
-        return (IMaintenance) maintenance;
+        return ((IMaintenanceBase) maintenance).getApi();
     }
 }

Maintenance-Bungee/pom.xml

@@ -3,14 +3,13 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <parent>
-        <groupId>eu.kennytv</groupId>
         <artifactId>maintenance-base</artifactId>
-        <version>2.2</version>
+        <groupId>eu.kennytv</groupId>
+        <version>2.4</version>
     </parent>
 
-    <artifactId>maintenancebungee</artifactId>
+    <artifactId>maintenance-bungee</artifactId>
     <name>MaintenanceBungee</name>
 
     <repositories>
@@ -24,13 +23,13 @@
         <dependency>
             <groupId>eu.kennytv</groupId>
             <artifactId>maintenance-core</artifactId>
-            <version>2.2</version>
+            <version>${parent.version}</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>net.md-5</groupId>
             <artifactId>bungeecord-api</artifactId>
-            <version>1.12-SNAPSHOT</version>
+            <version>1.13-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -42,7 +41,7 @@
         <dependency>
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
-            <version>2.7.8</version>
+            <version>3.2.0</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/MaintenanceBungeeBase.java

@@ -0,0 +1,25 @@
+package eu.kennytv.maintenance.bungee;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.IMaintenanceBase;
+import net.md_5.bungee.api.plugin.Plugin;
+
+import java.io.File;
+
+public final class MaintenanceBungeeBase extends Plugin implements IMaintenanceBase {
+    private IMaintenance maintenance;
+
+    @Override
+    public void onEnable() {
+        maintenance = new MaintenanceBungeePlugin(this);
+    }
+
+    @Override
+    public IMaintenance getApi() {
+        return maintenance;
+    }
+
+    File getPluginFile() {
+        return getFile();
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/MaintenanceBungeePlugin.java

@@ -4,8 +4,8 @@ import eu.kennytv.maintenance.api.IMaintenance;
 import eu.kennytv.maintenance.api.ISettings;
 import eu.kennytv.maintenance.api.MaintenanceBungeeAPI;
 import eu.kennytv.maintenance.bungee.command.MaintenanceBungeeCommand;
+import eu.kennytv.maintenance.bungee.command.MaintenanceBungeeCommandBase;
 import eu.kennytv.maintenance.bungee.listener.PostLoginListener;
-import eu.kennytv.maintenance.bungee.listener.ProxyPingListener;
 import eu.kennytv.maintenance.bungee.metrics.MetricsLite;
 import eu.kennytv.maintenance.core.MaintenanceModePlugin;
 import eu.kennytv.maintenance.core.hook.ServerListPlusHook;
@@ -21,7 +21,7 @@ import java.util.concurrent.TimeUnit;
  * @author KennyTV
  * @since 1.0
  */
-public final class MaintenanceBungeePlugin extends MaintenanceModePlugin implements IMaintenance {
+public final class MaintenanceBungeePlugin extends MaintenanceModePlugin {
     private final MaintenanceBungeeBase plugin;
     private final SettingsBungee settings;
 
@@ -31,12 +31,12 @@ public final class MaintenanceBungeePlugin extends MaintenanceModePlugin impleme
         this.plugin = plugin;
         plugin.getLogger().info("Plugin by KennyTV");
 
-        settings = new SettingsBungee(plugin);
+        settings = new SettingsBungee(this, plugin);
 
         final PluginManager pm = getProxy().getPluginManager();
         pm.registerListener(plugin, new PostLoginListener(this, settings));
-        pm.registerListener(plugin, new ProxyPingListener(plugin, settings));
-        pm.registerCommand(plugin, new MaintenanceBungeeCommand(this, settings));
+        final MaintenanceBungeeCommand maintenanceCommand = new MaintenanceBungeeCommand(this, settings);
+        pm.registerCommand(plugin, new MaintenanceBungeeCommandBase(maintenanceCommand));
 
         new MetricsLite(plugin);
 
@@ -44,50 +44,44 @@ public final class MaintenanceBungeePlugin extends MaintenanceModePlugin impleme
         final Plugin serverListPlus = pm.getPlugin("ServerListPlus");
         if (serverListPlus != null) {
             serverListPlusHook = new ServerListPlusHook(((ServerListPlusPlugin) serverListPlus).getCore());
+            serverListPlusHook.setEnabled(!settings.isMaintenance());
             plugin.getLogger().info("Enabled ServerListPlus integration!");
         }
     }
 
-    @Override
-    public void onDisable() {
-        if (settings.getMySQL() != null)
-            settings.getMySQL().close();
-    }
-
     @Override
     public void setMaintenance(final boolean maintenance) {
         if (settings.getMySQL() != null) {
             settings.setMaintenanceToSQL(maintenance);
         } else {
             settings.setMaintenance(maintenance);
-            settings.setConfigBoolean("enable-maintenance-mode", maintenance);
+            settings.setToConfig("enable-maintenance-mode", maintenance);
             settings.saveConfig();
             settings.reloadConfigs();
         }
 
-        if (serverListPlusHook != null)
-            serverListPlusHook.setEnabled(!maintenance);
+        serverActions(maintenance);
 
         if (isTaskRunning())
             cancelTask();
+    }
+
+    void serverActions(final boolean maintenance) {
+        if (serverListPlusHook != null)
+            serverListPlusHook.setEnabled(!maintenance);
 
         if (maintenance) {
             getProxy().getPlayers().stream()
                     .filter(p -> !p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId()))
                     .forEach(p -> p.disconnect(settings.getKickMessage().replace("%NEWLINE%", "\n")));
-            getProxy().broadcast(settings.getMaintenanceActivated());
+            getProxy().broadcast(settings.getMessage("maintenanceActivated"));
         } else
-            getProxy().broadcast(settings.getMaintenanceDeactivated());
+            getProxy().broadcast(settings.getMessage("maintenanceDeactivated"));
     }
 
     @Override
-    public boolean isMaintenance() {
-        return settings.isMaintenance();
-    }
-
-    @Override
-    public int schedule(final Runnable runnable) {
-        return getProxy().getScheduler().schedule(plugin, runnable, 0, 1, TimeUnit.MINUTES).getId();
+    public int startMaintenanceRunnable(final Runnable runnable) {
+        return getProxy().getScheduler().schedule(plugin, runnable, 0, 1, TimeUnit.SECONDS).getId();
     }
 
     @Override
@@ -98,7 +92,8 @@ public final class MaintenanceBungeePlugin extends MaintenanceModePlugin impleme
     @Override
     public void cancelTask() {
         getProxy().getScheduler().cancel(taskId);
-        setTaskId(0);
+        runnable = null;
+        taskId = 0;
     }
 
     @Override

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/SettingsBungee.java

@@ -0,0 +1,238 @@
+package eu.kennytv.maintenance.bungee;
+
+import eu.kennytv.maintenance.bungee.listener.ProxyPingListener;
+import eu.kennytv.maintenance.bungee.mysql.MySQL;
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import net.md_5.bungee.api.ChatColor;
+import net.md_5.bungee.api.plugin.PluginManager;
+import net.md_5.bungee.config.Configuration;
+import net.md_5.bungee.config.YamlConfiguration;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.sql.SQLException;
+import java.util.List;
+import java.util.UUID;
+
+public final class SettingsBungee extends Settings {
+    private final String updateQuery;
+    private final String maintenanceQuery;
+    private final MySQL mySQL;
+
+    private final MaintenanceBungeePlugin maintenancePlugin;
+    private final MaintenanceBungeeBase plugin;
+    private final IPingListener pingListener;
+    private Configuration config;
+    private Configuration language;
+    private Configuration whitelist;
+
+    private long millisecondsToCheck;
+    private long lastMySQLCheck;
+
+    SettingsBungee(final MaintenanceBungeePlugin maintenancePlugin, final MaintenanceBungeeBase plugin) {
+        super(maintenancePlugin);
+        this.maintenancePlugin = maintenancePlugin;
+        this.plugin = plugin;
+
+        final PluginManager pm = plugin.getProxy().getPluginManager();
+        final ProxyPingListener listener = new ProxyPingListener(plugin, this);
+        pm.registerListener(plugin, listener);
+        pingListener = listener;
+
+        if (!plugin.getDataFolder().exists())
+            plugin.getDataFolder().mkdirs();
+        createFile("bungee-config.yml");
+        createFile("language.yml");
+        createFile("WhitelistedPlayers.yml");
+
+        reloadConfigs();
+
+        final Configuration mySQLSection = config.getSection("mysql");
+        if (mySQLSection.getBoolean("use-mysql", false)) {
+            plugin.getLogger().info("Trying to open database connection...");
+            mySQL = new MySQL(mySQLSection.getString("host"),
+                    mySQLSection.getInt("port"),
+                    mySQLSection.getString("username"),
+                    mySQLSection.getString("password"),
+                    mySQLSection.getString("database"));
+
+            // Varchar as the value regarding the possibility of saving stuff like the motd as well in future updates
+            final String mySQLTable = mySQLSection.getString("table");
+            mySQL.executeUpdate("CREATE TABLE IF NOT EXISTS " + mySQLTable + " (setting VARCHAR(16) PRIMARY KEY, value VARCHAR(255))");
+            updateQuery = "INSERT INTO " + mySQLTable + " (setting, value) VALUES (?, ?) ON DUPLICATE KEY UPDATE value = ?";
+            maintenanceQuery = "SELECT * FROM " + mySQLTable + " WHERE setting = ?";
+            plugin.getLogger().info("Done!");
+        } else {
+            mySQL = null;
+            updateQuery = null;
+            maintenanceQuery = null;
+        }
+    }
+
+    private void createFile(final String name) {
+        final File file = new File(plugin.getDataFolder(), name);
+        if (!file.exists()) {
+            try (final InputStream in = plugin.getResourceAsStream(name)) {
+                Files.copy(in, file.toPath());
+            } catch (final IOException e) {
+                throw new RuntimeException("Unable to create " + name + " file for MaintenanceBungee", e);
+            }
+        }
+    }
+
+    @Override
+    public boolean updateExtraConfig() {
+        // 2.3.1 mysql.update-interval
+        if (!configContains("mysql.update-interval")) {
+            setToConfig("mysql.update-interval", 15);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void reloadConfigs() {
+        try {
+            config = YamlConfiguration.getProvider(YamlConfiguration.class)
+                    .load(new InputStreamReader(new FileInputStream(new File(plugin.getDataFolder(), "bungee-config.yml")), StandardCharsets.UTF_8));
+            language = YamlConfiguration.getProvider(YamlConfiguration.class)
+                    .load(new InputStreamReader(new FileInputStream(new File(plugin.getDataFolder(), "language.yml")), StandardCharsets.UTF_8));
+            whitelist = YamlConfiguration.getProvider(YamlConfiguration.class).load(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to load Maintenance files!", e);
+        }
+
+        loadSettings();
+    }
+
+    @Override
+    public void saveConfig() {
+        final File file = new File(plugin.getDataFolder(), "bungee-config.yml");
+        try {
+            YamlConfiguration.getProvider(YamlConfiguration.class).save(config, new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to save bungee-config.yml!", e);
+        }
+    }
+
+    @Override
+    public void saveWhitelistedPlayers() {
+        final File file = new File(plugin.getDataFolder(), "WhitelistedPlayers.yml");
+        try {
+            YamlConfiguration.getProvider(YamlConfiguration.class).save(whitelist, file);
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to save WhitelistedPlayers.yml!", e);
+        }
+    }
+
+    @Override
+    public void loadExtraSettings() {
+        whitelistedPlayers.clear();
+        whitelist.getKeys().forEach(key -> whitelistedPlayers.put(UUID.fromString(key), whitelist.getString(key)));
+        if (mySQL != null) {
+            final long configValue = config.getInt("mysql.update-interval");
+            millisecondsToCheck = configValue > 0 ? configValue * 1000 : -1;
+            lastMySQLCheck = 0;
+        }
+    }
+
+    @Override
+    public void setWhitelist(final String uuid, final String s) {
+        whitelist.set(uuid, s);
+    }
+
+    @Override
+    public String getConfigString(final String path) {
+        final String s = config.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The config is missing the following string: " + path);
+            return "null";
+        }
+        return s;
+    }
+
+    @Override
+    public String getMessage(final String path) {
+        final String s = language.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The language file is missing the following string: " + path);
+            return "null";
+        }
+        return ChatColor.translateAlternateColorCodes('&', s);
+    }
+
+    @Override
+    public boolean getConfigBoolean(final String path) {
+        return config.getBoolean(path);
+    }
+
+    @Override
+    public List<Integer> getConfigIntList(final String path) {
+        return config.getIntList(path);
+    }
+
+    @Override
+    public List<String> getConfigList(final String path) {
+        return config.getStringList(path);
+    }
+
+    @Override
+    public void setToConfig(final String path, final Object var) {
+        config.set(path, var);
+    }
+
+    @Override
+    public boolean configContains(final String path) {
+        return config.contains(path);
+    }
+
+    @Override
+    public String getColoredString(final String message) {
+        return ChatColor.translateAlternateColorCodes('&', message);
+    }
+
+    @Override
+    public boolean isMaintenance() {
+        if (mySQL != null && (millisecondsToCheck == -1 || System.currentTimeMillis() - lastMySQLCheck > millisecondsToCheck)) {
+            mySQL.executeQuery(maintenanceQuery, rs -> {
+                try {
+                    if (rs.next()) {
+                        final boolean databaseValue = Boolean.parseBoolean(rs.getString("value"));
+                        if (databaseValue != maintenance)
+                            maintenancePlugin.serverActions(maintenance);
+
+                        maintenance = databaseValue;
+                    }
+
+                } catch (final SQLException e) {
+                    e.printStackTrace();
+                }
+            }, "maintenance");
+            if (millisecondsToCheck != -1)
+                lastMySQLCheck = System.currentTimeMillis();
+        }
+
+        return maintenance;
+    }
+
+    @Override
+    public boolean reloadMaintenanceIcon() {
+        return pingListener.loadIcon();
+    }
+
+    public void setMaintenanceToSQL(final boolean maintenance) {
+        plugin.getProxy().getScheduler().runAsync(plugin, () -> {
+            final String s = String.valueOf(maintenance);
+            mySQL.executeUpdate(updateQuery, "maintenance", s, s);
+            if (millisecondsToCheck != -1)
+                lastMySQLCheck = System.currentTimeMillis();
+        });
+        this.maintenance = maintenance;
+    }
+
+    public MySQL getMySQL() {
+        return mySQL;
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/command/MaintenanceBungeeCommand.java

@@ -0,0 +1,66 @@
+package eu.kennytv.maintenance.bungee.command;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
+import eu.kennytv.maintenance.bungee.SettingsBungee;
+import eu.kennytv.maintenance.bungee.util.ProxiedSenderInfo;
+import eu.kennytv.maintenance.core.command.MaintenanceCommand;
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.HoverEvent;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+public final class MaintenanceBungeeCommand extends MaintenanceCommand {
+
+    public MaintenanceBungeeCommand(final MaintenanceBungeePlugin plugin, final SettingsBungee settings) {
+        super(plugin, settings, "MaintenanceBungee");
+    }
+
+    @Override
+    protected void addPlayerToWhitelist(final SenderInfo sender, final String name) {
+        final ProxiedPlayer selected = ProxyServer.getInstance().getPlayer(name);
+        if (selected == null) {
+            sender.sendMessage(settings.getMessage("playerNotOnline"));
+            return;
+        }
+
+        if (settings.addWhitelistedPlayer(selected.getUniqueId(), selected.getName()))
+            sender.sendMessage(settings.getMessage("whitelistAdded").replace("%PLAYER%", selected.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistAlreadyAdded").replace("%PLAYER%", selected.getName()));
+    }
+
+    @Override
+    protected void removePlayerFromWhitelist(final SenderInfo sender, final String name) {
+        final ProxiedPlayer selected = ProxyServer.getInstance().getPlayer(name);
+        if (selected == null) {
+            if (settings.removeWhitelistedPlayer(name))
+                sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", name));
+            else
+                sender.sendMessage(settings.getMessage("whitelistNotFound"));
+            return;
+        }
+
+        if (settings.removeWhitelistedPlayer(selected.getUniqueId()))
+            sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", selected.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistNotFound"));
+    }
+
+    @Override
+    protected void checkForUpdate(final SenderInfo sender) {
+        if (plugin.updateAvailable()) {
+            sender.sendMessage(plugin.getPrefix() + "§cNewest version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+            sender.sendMessage(plugin.getPrefix() + "§c§lWARNING: §cYou will have to restart the proxy to prevent further issues and to complete the update!" +
+                    " If you can't do that, don't update!");
+            final TextComponent tc = new TextComponent("§6× §8[§aUpdate§8]");
+            tc.setClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/maintenance forceupdate"));
+            tc.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, TextComponent.fromLegacyText("§aClick here to update the plugin")));
+            tc.addExtra(" §8< §7Or use the command §c/maintenance forceupdate");
+
+            ((ProxiedSenderInfo) sender).sendMessage(tc);
+        } else
+            sender.sendMessage(plugin.getPrefix() + "§aYou already have the latest version of the plugin!");
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/command/MaintenanceBungeeCommandBase.java

@@ -0,0 +1,19 @@
+package eu.kennytv.maintenance.bungee.command;
+
+import eu.kennytv.maintenance.bungee.util.ProxiedSenderInfo;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.plugin.Command;
+
+public final class MaintenanceBungeeCommandBase extends Command {
+    private final MaintenanceBungeeCommand command;
+
+    public MaintenanceBungeeCommandBase(final MaintenanceBungeeCommand command) {
+        super("maintenance", "", "maintenancebungee");
+        this.command = command;
+    }
+
+    @Override
+    public void execute(final CommandSender sender, final String[] args) {
+        command.execute(new ProxiedSenderInfo(sender), args);
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/listener/PostLoginListener.java

@@ -1,5 +1,6 @@
 package eu.kennytv.maintenance.bungee.listener;
 
+import com.google.common.collect.Sets;
 import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
 import eu.kennytv.maintenance.bungee.SettingsBungee;
 import net.md_5.bungee.api.chat.ClickEvent;
@@ -12,9 +13,13 @@ import net.md_5.bungee.api.plugin.Listener;
 import net.md_5.bungee.event.EventHandler;
 import net.md_5.bungee.event.EventPriority;
 
+import java.util.Set;
+import java.util.UUID;
+
 public final class PostLoginListener implements Listener {
     private final MaintenanceBungeePlugin plugin;
     private final SettingsBungee settings;
+    private final Set<UUID> notifiedPlayers = Sets.newHashSet();
 
     public PostLoginListener(final MaintenanceBungeePlugin plugin, final SettingsBungee settings) {
         this.plugin = plugin;
@@ -32,16 +37,17 @@ public final class PostLoginListener implements Listener {
 
                 if (settings.isJoinNotifications())
                     plugin.getProxy().getPlayers().stream().filter(player -> player.hasPermission("maintenance.joinnotification"))
-                            .forEach(player -> player.sendMessage(settings.getJoinNotification().replace("%PLAYER%", p.getName())));
+                            .forEach(player -> player.sendMessage(settings.getMessage("joinNotification").replace("%PLAYER%", p.getName())));
                 return;
             }
         }
 
-        if (!p.hasPermission("maintenance.admin")) return;
+        if (!p.hasPermission("maintenance.admin") || notifiedPlayers.contains(p.getUniqueId())) return;
 
         plugin.async(() -> {
             if (plugin.updateAvailable()) {
-                p.sendMessage(plugin.getPrefix() + "§cThere is a newer version available: §aVersion " + plugin.getNewestVersion() + "§c, you're still on §a" + plugin.getVersion());
+                p.sendMessage(plugin.getPrefix() + "§cThere is a newer version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+                notifiedPlayers.add(p.getUniqueId());
 
                 final TextComponent tc1 = new TextComponent(TextComponent.fromLegacyText(plugin.getPrefix() + " "));
                 final TextComponent tc2 = new TextComponent(TextComponent.fromLegacyText("§cDownload it at: §6https://www.spigotmc.org/resources/maintenancemode.40699/"));

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/listener/ProxyPingListener.java

@@ -0,0 +1,60 @@
+package eu.kennytv.maintenance.bungee.listener;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeeBase;
+import eu.kennytv.maintenance.bungee.SettingsBungee;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import net.md_5.bungee.api.Favicon;
+import net.md_5.bungee.api.ServerPing;
+import net.md_5.bungee.api.event.ProxyPingEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+
+import javax.imageio.ImageIO;
+import java.io.File;
+import java.io.IOException;
+
+public final class ProxyPingListener implements Listener, IPingListener {
+    private final MaintenanceBungeeBase plugin;
+    private final SettingsBungee settings;
+    private Favicon favicon;
+
+    public ProxyPingListener(final MaintenanceBungeeBase plugin, final SettingsBungee settings) {
+        this.plugin = plugin;
+        this.settings = settings;
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void proxyPing(final ProxyPingEvent event) {
+        if (!settings.isMaintenance()) return;
+
+        final ServerPing ping = event.getResponse();
+        if (settings.hasCustomPlayerCountMessage()) {
+            ping.getVersion().setProtocol(1);
+            ping.getVersion().setName(settings.getPlayerCountMessage()
+                    .replace("%ONLINE%", Integer.toString(ping.getPlayers().getOnline()))
+                    .replace("%MAX%", Integer.toString(ping.getPlayers().getMax())));
+        }
+
+        ping.setDescription(settings.getRandomPingMessage());
+        ping.getPlayers().setOnline(0);
+        ping.getPlayers().setMax(0);
+        ping.getPlayers().setSample(new ServerPing.PlayerInfo[]{
+                new ServerPing.PlayerInfo(settings.getPlayerCountHoverMessage().replace("%NEWLINE%", "\n"), "")
+        });
+
+        if (settings.hasCustomIcon() && favicon != null)
+            ping.setFavicon(favicon);
+    }
+
+    @Override
+    public boolean loadIcon() {
+        try {
+            favicon = Favicon.create(ImageIO.read(new File("maintenance-icon.png")));
+        } catch (final IOException | IllegalArgumentException e) {
+            plugin.getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Bungee folder (not the plugins folder)?");
+            return false;
+        }
+        return true;
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/metrics/MetricsLite.java

@@ -12,6 +12,7 @@ import javax.net.ssl.HttpsURLConnection;
 import java.io.*;
 import java.lang.reflect.InvocationTargetException;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
 import java.util.*;
 import java.util.concurrent.TimeUnit;
@@ -266,7 +267,7 @@ public final class MetricsLite {
         }
         final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         final GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
-        gzip.write(str.getBytes("UTF-8"));
+        gzip.write(str.getBytes(StandardCharsets.UTF_8));
         gzip.close();
         return outputStream.toByteArray();
     }

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/mysql/MySQL.java

@@ -12,6 +12,7 @@ import java.util.function.Consumer;
 public final class MySQL {
     private final HikariDataSource hikariDataSource;
 
+    // Excuse me and everything to do with the MySQL stuff, I have little to no idea of how to use databases
     public MySQL(final String hostname, final int port, final String username, final String password, final String database) {
         final HikariConfig hikariConfig = new HikariConfig();
         hikariConfig.setMaximumPoolSize(10);
@@ -60,8 +61,8 @@ public final class MySQL {
         }
     }
 
-    public void close() {
-        if (hikariDataSource != null && !hikariDataSource.isClosed())
-            hikariDataSource.close();
+    public void executeUpdate(final String query, final Object... objects) {
+        executeUpdate(query, res -> {
+        }, objects);
     }
 }

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/util/ProxiedSenderInfo.java

@@ -0,0 +1,40 @@
+package eu.kennytv.maintenance.bungee.util;
+
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.util.UUID;
+
+public final class ProxiedSenderInfo extends SenderInfo {
+    private final CommandSender sender;
+
+    public ProxiedSenderInfo(final CommandSender sender) {
+        this.sender = sender;
+    }
+
+    @Override
+    public UUID getUuid() {
+        return sender instanceof ProxiedPlayer ? ((ProxiedPlayer) sender).getUniqueId() : null;
+    }
+
+    @Override
+    public String getName() {
+        return sender.getName();
+    }
+
+    @Override
+    public boolean hasPermission(final String permission) {
+        return sender.hasPermission(permission);
+    }
+
+    @Override
+    public void sendMessage(final String message) {
+        sender.sendMessage(message);
+    }
+
+    public void sendMessage(final TextComponent textComponent) {
+        sender.sendMessage(textComponent);
+    }
+}

Maintenance-Bungee/src/main/resources/bungee-config.yml

@@ -1,49 +1,50 @@
-# MaintenanceBungee Plugin by KennyTV 
+# MaintenanceBungee Plugin by KennyTV
 # Version ${project.version}
 
 # Enables maintenance-mode.
 enable-maintenance-mode: false
 
 # The message shown in the multiplayer server list motd.
-pingmessage: "&cMaintenance mode!%NEWLINE%&6We will be back soon!"
+# If you put in multiple entries, one of them will be chosen randomly on every ping.
+pingmessages:
+  - "&cMaintenance mode!%NEWLINE%&6We will be back soon!"
+ #- "Another entry"
 
-# Is shown at the top right corner of the server in the serverlist,
+# If set to true, the message below will be shown at the top right corner of the server in the serverlist,
 # where the playercount would normally be displayed.
+# If set to false, the normal playercount will be shown.
+# Alternatively you can use '%ONLINE%' and '%MAX% if you want to include the playercount in a custom message (e.g. '&cMaintenance &7%ONLINE%&8/&7%MAX%').
+enable-playercountmessage: true
 playercountmessage: "&4Maintenance"
 
 # Is shown when you move your mouse above the text at the top right corner of the server in the serverlist,
 # where the playercount would normally be displayed.
 playercounthovermessage: "&cCurrently under%NEWLINE%&cmaintenance"
 
-# Will be shown, when a player tries to join on the server without the permission.
+# Is shown when a player tries to join while maintenance is enabled and they don't have the permission to bypass it.
 kickmessage: "&cThe server is currently under maintenance!%NEWLINE%Try again later!"
 
-# Some self explanatory messages
-no-permission: "&cYou do not have the permission to execute that command."
-maintenance-activated: "&6Maintenance mode is now activated."
-maintenance-deactivated: "&6Maintenance mode is now deactivated."
-
-starttimer-broadcast-mesage: '&8[&eMaintenance&8] &7Maintenance mode will be enabled in &6%MINUTES% minutes&7.'
-endtimer-broadcast-mesage: '&8[&eMaintenance&8] &7Maintenance mode will be disabled in &6%MINUTES% minutes&7.'
-
 # If using the timer command: In what intervalls before enabling/disabling maintenance there will be a broadcast.
-timer-broadcasts-for-minutes: [60, 30, 15, 10, 5, 4, 3, 2, 1]
+timer-broadcast-for-seconds: [1200, 900, 600, 300, 120, 60, 30, 20, 10, 5, 4, 3, 2, 1]
 
 # If set to true, players with the maintenance.joinnotification permission will receive a message,
 # that a player tried to join the server while maintenance is enabled.
 send-join-notification: false
-join-notification: "&e%PLAYER% &ctried to join the server."
 
 # If set to true, the server icon will be changed to maintenance-icon.png in the Bungee main/base-folder.
 custom-maintenance-icon: false
 
 # Only enable MySQL if you really know what you are doing.
-# You need to have a table with the two following columns: 'setting' and 'value'.
 mysql:
   use-mysql: false
   host: host
   port: 3306
   database: database
-  table: tablename
   username: username
   password: password
+  # A new table with this name will be created on first startup when 'use-mysql' is set to true.
+  table: maintenance_settings
+  # Requests to the database will only be made at least x seconds after the last request,
+  # so there won't be a request on every single ping on a server with many players.
+  # Set this to 0 to make a database request on every single ping.
+  update-interval: 15

Maintenance-Core/pom.xml

@@ -6,19 +6,13 @@
     <parent>
         <artifactId>maintenance-base</artifactId>
         <groupId>eu.kennytv</groupId>
-        <version>2.2</version>
+        <version>2.4</version>
     </parent>
 
     <artifactId>maintenance-core</artifactId>
     <name>Maintenance-Core</name>
 
     <dependencies>
-        <dependency>
-            <groupId>org.spigotmc</groupId>
-            <artifactId>spigot-api</artifactId>
-            <version>1.12.2-R0.1-SNAPSHOT</version>
-            <scope>provided</scope>
-        </dependency>
         <dependency>
             <groupId>net.minecrell</groupId>
             <artifactId>ServerListPlus</artifactId>
@@ -28,7 +22,7 @@
         <dependency>
             <groupId>eu.kennytv</groupId>
             <artifactId>maintenance-api</artifactId>
-            <version>2.2</version>
+            <version>${parent.version}</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/MaintenanceModePlugin.java

@@ -1,6 +1,8 @@
 package eu.kennytv.maintenance.core;
 
+import eu.kennytv.maintenance.api.IMaintenance;
 import eu.kennytv.maintenance.core.hook.ServerListPlusHook;
+import eu.kennytv.maintenance.core.runnable.MaintenanceRunnable;
 
 import java.io.*;
 import java.net.HttpURLConnection;
@@ -8,10 +10,11 @@ import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLConnection;
 
-public abstract class MaintenanceModePlugin {
+public abstract class MaintenanceModePlugin implements IMaintenance {
     protected final String version;
-    protected int taskId;
     protected ServerListPlusHook serverListPlusHook;
+    protected MaintenanceRunnable runnable;
+    protected int taskId;
     private final String prefix;
     private String newestVersion;
 
@@ -20,27 +23,31 @@ public abstract class MaintenanceModePlugin {
         this.version = version;
     }
 
-    public abstract void onDisable();
-
-    public abstract void setMaintenance(boolean maintenance);
+    @Override
+    public boolean isMaintenance() {
+        return getSettings().isMaintenance();
+    }
 
+    @Override
     public String getVersion() {
         return version;
     }
 
+    @Override
     public boolean isTaskRunning() {
-        return taskId != 0;
+        return taskId != 0 && runnable != null;
     }
 
-    public void setTaskId(final int taskId) {
-        this.taskId = taskId;
+    public void startMaintenanceRunnable(final int minutes, final boolean enable) {
+        runnable = new MaintenanceRunnable(this, (Settings) getSettings(), minutes, enable);
+        taskId = startMaintenanceRunnable(runnable);
     }
 
     public String getNewestVersion() {
         return newestVersion;
     }
 
-    public abstract int schedule(Runnable runnable);
+    public abstract int startMaintenanceRunnable(Runnable runnable);
 
     public abstract void async(Runnable runnable);
 
@@ -50,14 +57,26 @@ public abstract class MaintenanceModePlugin {
 
     public abstract void broadcast(String message);
 
+    public MaintenanceRunnable getRunnable() {
+        return runnable;
+    }
+
     public String getPrefix() {
         return prefix;
     }
 
+    public String formatedTimer() {
+        if (!isTaskRunning()) return "-";
+        final int preHours = runnable.getSecondsLeft() / 60;
+        final int minutes = preHours % 60;
+        final int seconds = runnable.getSecondsLeft() % 60;
+        return String.format("%02d:%02d:%02d", preHours / 60, minutes, seconds);
+    }
+
     public boolean updateAvailable() {
         try {
             final HttpURLConnection c = (HttpURLConnection) new URL("https://api.spigotmc.org/legacy/update.php?resource=40699").openConnection();
-            final String newVersion = new BufferedReader(new InputStreamReader(c.getInputStream())).readLine().replaceAll("[a-zA-Z ]", "");
+            final String newVersion = new BufferedReader(new InputStreamReader(c.getInputStream())).readLine().replaceAll("[a-zA-Z -]", "");
 
             final boolean available = !newVersion.equals(version);
             if (available)

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/Settings.java

@@ -1,58 +1,89 @@
 package eu.kennytv.maintenance.core;
 
-import com.google.common.collect.Maps;
-import com.google.common.collect.Sets;
+import eu.kennytv.maintenance.api.ISettings;
 
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
+import java.util.*;
 
-public abstract class Settings {
-    protected final Map<UUID, String> whitelistedPlayers = Maps.newHashMap();
+public abstract class Settings implements ISettings {
+    private static final Random RANDOM = new Random();
+    protected final Map<UUID, String> whitelistedPlayers = new HashMap<>();
+    private final MaintenanceModePlugin plugin;
     protected boolean maintenance;
     private Set<Integer> broadcastIntervalls;
-    private String timerBroadcastMessage;
-    private String endtimerBroadcastMessage;
-    private String pingMessage;
-    private String kickMessage;
-    private String joinNotification;
-    private String noPermMessage;
-    private String maintenanceActivated;
-    private String maintenanceDeactivated;
+    private List<String> pingMessages;
     private String playerCountMessage;
     private String playerCountHoverMessage;
-    private boolean joinNotifications;
+    private String kickMessage;
+    private boolean customPlayerCountMessage;
     private boolean customMaintenanceIcon;
+    private boolean joinNotifications;
+
+    protected Settings(final MaintenanceModePlugin plugin) {
+        this.plugin = plugin;
+    }
 
     protected void loadSettings() {
-        timerBroadcastMessage = getConfigString("starttimer-broadcast-mesage");
-        endtimerBroadcastMessage = getConfigString("endtimer-broadcast-mesage");
-        pingMessage = getConfigString("pingmessage");
-        kickMessage = getConfigString("kickmessage");
-        joinNotification = getConfigString("join-notification");
-        noPermMessage = getConfigString("no-permission");
-        maintenanceActivated = getConfigString("maintenance-activated");
-        maintenanceDeactivated = getConfigString("maintenance-deactivated");
+        updateConfig();
+
+        pingMessages = getConfigList("pingmessages");
         maintenance = getConfigBoolean("enable-maintenance-mode");
-        joinNotifications = getConfigBoolean("send-join-notification");
+        customPlayerCountMessage = getConfigBoolean("enable-playercountmessage");
         customMaintenanceIcon = getConfigBoolean("custom-maintenance-icon");
-        broadcastIntervalls = Sets.newHashSet(getBroadcastIntervallList());
-        playerCountMessage = getConfigString("playercountmessage");
-        playerCountHoverMessage = getConfigString("playercounthovermessage");
+        joinNotifications = getConfigBoolean("send-join-notification");
+        broadcastIntervalls = new HashSet<>(getConfigIntList("timer-broadcast-for-seconds"));
+        playerCountMessage = getColoredString(getConfigString("playercountmessage"));
+        playerCountHoverMessage = getColoredString(getConfigString("playercounthovermessage"));
+        kickMessage = getColoredString(getConfigString("kickmessage"));
+        if (customMaintenanceIcon)
+            reloadMaintenanceIcon();
 
         loadExtraSettings();
     }
 
-    public abstract void saveWhitelistedPlayers();
+    private void updateConfig() {
+        boolean fileChanged = false;
 
-    public abstract boolean createFiles();
+        // 2.3 pingmessage -> pingmessages
+        if (configContains("pingmessage")) {
+            final List<String> list = new ArrayList<>();
+            list.add(getConfigString("pingmessage"));
+            setToConfig("pingmessages", list);
+            setToConfig("pingmessage", null);
+            fileChanged = true;
+        }
+        // 2.4 enable-playercountmessage
+        if (!configContains("enable-playercountmessage")) {
+            setToConfig("enable-playercountmessage", true);
+            fileChanged = true;
+        }
+        // 2.4. timer-broadcasts-for-minutes -> timer-broadcast-for-seconds
+        if (configContains("timer-broadcasts-for-minutes") || !configContains("timer-broadcast-for-seconds")) {
+            setToConfig("timer-broadcast-for-seconds", Arrays.asList(1200, 900, 600, 300, 120, 60, 30, 20, 10, 5, 4, 3, 2, 1));
+            setToConfig("timer-broadcasts-for-minutes", null);
+            fileChanged = true;
+        }
+
+        if (updateExtraConfig() || fileChanged) {
+            saveConfig();
+            reloadConfigs();
+        }
+    }
+
+    public boolean updateExtraConfig() {
+        return false;
+    }
+
+    public abstract void saveWhitelistedPlayers();
 
     public abstract String getConfigString(String path);
 
+    public abstract String getMessage(String path);
+
     public abstract boolean getConfigBoolean(String path);
 
-    public abstract List<Integer> getBroadcastIntervallList();
+    public abstract List<Integer> getConfigIntList(String path);
+
+    public abstract List<String> getConfigList(String path);
 
     public abstract void loadExtraSettings();
 
@@ -62,38 +93,18 @@ public abstract class Settings {
 
     public abstract void reloadConfigs();
 
-    public abstract void setConfigBoolean(String path, boolean boo);
+    public abstract void setToConfig(String path, Object var);
 
-    public String getTimerBroadcastMessage() {
-        return timerBroadcastMessage;
+    public abstract boolean configContains(String path);
+
+    public abstract String getColoredString(String s);
+
+    public List<String> getPingMessages() {
+        return pingMessages;
     }
 
-    public String getEndtimerBroadcastMessage() {
-        return endtimerBroadcastMessage;
-    }
-
-    public String getPingMessage() {
-        return pingMessage;
-    }
-
-    public String getKickMessage() {
-        return kickMessage;
-    }
-
-    public String getJoinNotification() {
-        return joinNotification;
-    }
-
-    public String getNoPermMessage() {
-        return noPermMessage;
-    }
-
-    public String getMaintenanceActivated() {
-        return maintenanceActivated;
-    }
-
-    public String getMaintenanceDeactivated() {
-        return maintenanceDeactivated;
+    public Set<Integer> getBroadcastIntervalls() {
+        return broadcastIntervalls;
     }
 
     public String getPlayerCountMessage() {
@@ -104,30 +115,45 @@ public abstract class Settings {
         return playerCountHoverMessage;
     }
 
+    public String getKickMessage() {
+        return kickMessage;
+    }
+
     public void setMaintenance(final boolean maintenance) {
         this.maintenance = maintenance;
     }
 
+    public String getRandomPingMessage() {
+        if (pingMessages.isEmpty()) return "";
+        final String s = pingMessages.size() > 1 ? pingMessages.get(RANDOM.nextInt(pingMessages.size())) : pingMessages.get(0);
+        return getColoredString(s.replace("%NEWLINE%", "\n").replace("%TIMER%", plugin.formatedTimer()));
+    }
+
+    public boolean hasCustomPlayerCountMessage() {
+        return customPlayerCountMessage;
+    }
+
+    @Override
     public boolean isMaintenance() {
         return maintenance;
     }
 
+    @Override
     public boolean isJoinNotifications() {
         return joinNotifications;
     }
 
+    @Override
     public boolean hasCustomIcon() {
         return customMaintenanceIcon;
     }
 
-    public Set<Integer> getBroadcastIntervalls() {
-        return broadcastIntervalls;
-    }
-
+    @Override
     public Map<UUID, String> getWhitelistedPlayers() {
         return whitelistedPlayers;
     }
 
+    @Override
     public boolean removeWhitelistedPlayer(final UUID uuid) {
         if (!whitelistedPlayers.containsKey(uuid)) return false;
         whitelistedPlayers.remove(uuid);
@@ -137,15 +163,19 @@ public abstract class Settings {
     }
 
     @Deprecated
+    @Override
     public boolean removeWhitelistedPlayer(final String name) {
-        if (!whitelistedPlayers.containsValue(name)) return false;
-        final UUID uuid = whitelistedPlayers.entrySet().stream().filter(entry -> entry.getValue().equals(name)).findFirst().get().getKey();
+        final Map.Entry<UUID, String> entry = whitelistedPlayers.entrySet().stream().filter(e -> e.getValue().equalsIgnoreCase(name)).findAny().orElse(null);
+        if (entry == null) return false;
+
+        final UUID uuid = entry.getKey();
         whitelistedPlayers.remove(uuid);
         setWhitelist(uuid.toString(), null);
         saveWhitelistedPlayers();
         return true;
     }
 
+    @Override
     public boolean addWhitelistedPlayer(final UUID uuid, final String name) {
         final boolean contains = !whitelistedPlayers.containsKey(uuid);
         whitelistedPlayers.put(uuid, name);

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/command/MaintenanceCommand.java

@@ -0,0 +1,274 @@
+package eu.kennytv.maintenance.core.command;
+
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.util.SenderInfo;
+
+import java.util.Arrays;
+import java.util.Map;
+import java.util.UUID;
+
+public abstract class MaintenanceCommand {
+    protected final MaintenanceModePlugin plugin;
+    protected final Settings settings;
+    private final String name;
+
+    protected MaintenanceCommand(final MaintenanceModePlugin plugin, final Settings settings, final String name) {
+        this.plugin = plugin;
+        this.settings = settings;
+        this.name = name;
+    }
+
+    public void execute(final SenderInfo sender, final String[] args) {
+        if (checkPermission(sender, "command")) return;
+        if (args.length == 1) {
+            if (args[0].equalsIgnoreCase("on") || args[0].equalsIgnoreCase("off")) {
+                if (checkPermission(sender, "toggle")) return;
+
+                final boolean maintenance = args[0].equalsIgnoreCase("on");
+                if (maintenance == plugin.isMaintenance()) {
+                    sender.sendMessage(settings.getMessage(maintenance ? "alreadyEnabled" : "alreadyDisabled"));
+                    return;
+                }
+
+                plugin.setMaintenance(maintenance);
+            } else if (args[0].equalsIgnoreCase("reload")) {
+                if (checkPermission(sender, "reload")) return;
+                settings.reloadConfigs();
+                sender.sendMessage(settings.getMessage("reload"));
+            } else if (args[0].equalsIgnoreCase("update")) {
+                if (checkPermission(sender, "update")) return;
+                checkForUpdate(sender);
+            } else if (args[0].equals("forceupdate")) {
+                if (checkPermission(sender, "update")) return;
+                sender.sendMessage(settings.getMessage("updateDownloading"));
+
+                if (plugin.installUpdate())
+                    sender.sendMessage(settings.getMessage("updateFinished"));
+                else
+                    sender.sendMessage(settings.getMessage("updateFailed"));
+            } else if (args[0].equalsIgnoreCase("whitelist")) {
+                if (checkPermission(sender, "whitelist.list")) return;
+                final Map<UUID, String> players = settings.getWhitelistedPlayers();
+                if (players.isEmpty()) {
+                    sender.sendMessage(settings.getMessage("whitelistEmtpy"));
+                } else if (players.size() == 1 && players.containsKey(UUID.fromString("a8179ff3-c201-4a75-bdaa-9d14aca6f83f"))) {
+                    sender.sendMessage(settings.getMessage("whitelistEmptyDefault"));
+                } else {
+                    sender.sendMessage(settings.getMessage("whitelistedPlayers"));
+                    final String format = settings.getMessage("whitelistedPlayersFormat");
+                    players.forEach((key, value) -> sender.sendMessage(format.replace("%NAME%", value).replace("%UUID%", key.toString())));
+                    sender.sendMessage("");
+                }
+            } else if (args[0].equalsIgnoreCase("motd")) {
+                if (checkPermission(sender, "motd")) return;
+                sender.sendMessage(settings.getMessage("motdList"));
+                for (int i = 0; i < settings.getPingMessages().size(); i++) {
+                    sender.sendMessage("§b" + (i + 1) + "§8§m---------");
+                    for (final String motd : settings.getColoredString(settings.getPingMessages().get(i)).split("%NEWLINE%")) {
+                        sender.sendMessage(motd);
+                    }
+                }
+                sender.sendMessage("§8§m----------");
+            } else
+                sendUsage(sender);
+        } else if (args.length == 2) {
+            if (args[0].equalsIgnoreCase("endtimer")) {
+                if (checkPermission(sender, "timer")) return;
+                if (!isNumeric(args[1])) {
+                    sender.sendMessage(settings.getMessage("endtimerUsage"));
+                    return;
+                }
+                if (plugin.isTaskRunning()) {
+                    sender.sendMessage(settings.getMessage("timerAlreadyRunning"));
+                    return;
+                }
+
+                final int minutes = Integer.parseInt(args[1]);
+                if (minutes > 40320) {
+                    sender.sendMessage(settings.getMessage("timerTooLong"));
+                    return;
+                }
+                if (minutes < 1) {
+                    sender.sendMessage("§8§o[KennyTV whispers to you] §c§oThink about running a timer for a negative amount of minutes. Doesn't work §lthat §c§owell.");
+                    return;
+                }
+
+                if (!plugin.isMaintenance())
+                    plugin.setMaintenance(true);
+                plugin.startMaintenanceRunnable(minutes, false);
+                sender.sendMessage(settings.getMessage("endtimerStarted").replace("%TIME%", plugin.getRunnable().getTime()));
+            } else if (args[0].equalsIgnoreCase("starttimer")) {
+                if (checkPermission(sender, "timer")) return;
+                if (!isNumeric(args[1])) {
+                    sender.sendMessage(settings.getMessage("starttimerUsage"));
+                    return;
+                }
+                if (plugin.isMaintenance()) {
+                    sender.sendMessage(settings.getMessage("alreadyEnabled"));
+                    return;
+                }
+                if (plugin.isTaskRunning()) {
+                    sender.sendMessage(settings.getMessage("timerAlreadyRunning"));
+                    return;
+                }
+
+                final int minutes = Integer.parseInt(args[1]);
+                if (minutes > 40320) {
+                    sender.sendMessage(settings.getMessage("timerTooLong"));
+                    return;
+                }
+                if (minutes < 1) {
+                    sender.sendMessage("§8§o[KennyTV whispers to you] §c§oThink about running a timer for a negative amount of minutes. Doesn't work §lthat §c§owell.");
+                    return;
+                }
+
+                sender.sendMessage(settings.getMessage("starttimerStarted").replace("%TIME%", plugin.getRunnable().getTime()));
+                plugin.startMaintenanceRunnable(minutes, true);
+            } else if (args[0].equalsIgnoreCase("timer")) {
+                if (args[1].equalsIgnoreCase("abort") || args[1].equalsIgnoreCase("stop") || args[1].equalsIgnoreCase("cancel")) {
+                    if (checkPermission(sender, "timer")) return;
+                    if (!plugin.isTaskRunning()) {
+                        sender.sendMessage(settings.getMessage("timerNotRunning"));
+                        return;
+                    }
+
+                    plugin.cancelTask();
+                    sender.sendMessage(settings.getMessage("timerCancelled"));
+                } else
+                    sendUsage(sender);
+            } else if (args[0].equalsIgnoreCase("add")) {
+                if (checkPermission(sender, "whitelist.add")) return;
+                addPlayerToWhitelist(sender, args[1]);
+            } else if (args[0].equalsIgnoreCase("remove")) {
+                if (checkPermission(sender, "whitelist.remove")) return;
+                removePlayerFromWhitelist(sender, args[1]);
+            } else if (args[0].equalsIgnoreCase("removemotd")) {
+                if (checkPermission(sender, "setmotd")) return;
+                if (!isNumeric(args[1])) {
+                    sender.sendMessage(settings.getMessage("removeMotdUsage"));
+                    return;
+                }
+                if (settings.getPingMessages().size() < 2) {
+                    sender.sendMessage(settings.getMessage("removeMotdError"));
+                    return;
+                }
+
+                final int index = Integer.parseInt(args[1]);
+                if (index > settings.getPingMessages().size()) {
+                    sender.sendMessage(settings.getMessage("setMotdIndexError").replace("%MOTDS%", Integer.toString(settings.getPingMessages().size()))
+                            .replace("%NEWAMOUNT%", Integer.toString(settings.getPingMessages().size())));
+                    return;
+                }
+
+                settings.getPingMessages().remove(index - 1);
+                settings.setToConfig("pingmessages", settings.getPingMessages());
+                settings.saveConfig();
+                settings.reloadConfigs();
+                sender.sendMessage(settings.getMessage("removedMotd").replace("%INDEX%", args[1]));
+            } else
+                sendUsage(sender);
+        } else if (args.length > 3 && args[0].equalsIgnoreCase("setmotd")) {
+            if (checkPermission(sender, "setmotd")) return;
+            if (!isNumeric(args[1])) {
+                sender.sendMessage(settings.getMessage("setMotdUsage"));
+                return;
+            }
+
+            final int index = Integer.parseInt(args[1]);
+            if (index < 1 || index > settings.getPingMessages().size() + 1) {
+                sender.sendMessage(settings.getMessage("setMotdIndexError").replace("%MOTDS%", Integer.toString(settings.getPingMessages().size()))
+                        .replace("%NEWAMOUNT%", Integer.toString(settings.getPingMessages().size() + 1)));
+                return;
+            }
+
+            if (!isNumeric(args[2])) {
+                sender.sendMessage(settings.getMessage("setMotdLineError"));
+                return;
+            }
+
+            final int line = Integer.parseInt(args[2]);
+            if (line != 1 && line != 2) {
+                sender.sendMessage(settings.getMessage("setMotdLineError"));
+                return;
+            }
+
+            final String message = String.join(" ", Arrays.copyOfRange(args, 3, args.length));
+            final String oldMessage = index > settings.getPingMessages().size() ? "" : settings.getPingMessages().get(index - 1);
+            final String newMessage;
+            if (line == 1)
+                newMessage = oldMessage.contains("%NEWLINE%") ?
+                        message + "%NEWLINE%" + oldMessage.split("%NEWLINE%", 2)[1] : message;
+            else
+                newMessage = oldMessage.contains("%NEWLINE%") ?
+                        oldMessage.split("%NEWLINE%", 2)[0] + "%NEWLINE%" + message : oldMessage + "%NEWLINE%" + message;
+
+            if (index > settings.getPingMessages().size())
+                settings.getPingMessages().add(newMessage);
+            else
+                settings.getPingMessages().set(index - 1, newMessage);
+            settings.setToConfig("pingmessages", settings.getPingMessages());
+            settings.saveConfig();
+            settings.reloadConfigs();
+            sender.sendMessage(settings.getMessage("setMotd").replace("%LINE%", args[2]).replace("%INDEX%", args[1])
+                    .replace("%MOTD%", "§f" + settings.getColoredString(message)));
+        } else
+            sendUsage(sender);
+    }
+
+    private void sendUsage(final SenderInfo sender) {
+        sender.sendMessage("");
+        sender.sendMessage("§8===========[ §e" + name + " §8| §eVersion: §e" + plugin.getVersion() + " §8]===========");
+        if (sender.hasPermission("maintenance.reload"))
+            sender.sendMessage("§6/maintenance reload §7(Reloads the config file, whitelist file and the server-icon)");
+        if (sender.hasPermission("maintenance.toggle")) {
+            sender.sendMessage("§6/maintenance on §7(Enables maintenance mode");
+            sender.sendMessage("§6/maintenance off §7(Disables maintenance mode)");
+        }
+        if (sender.hasPermission("maintenance.timer")) {
+            sender.sendMessage("§6/maintenance starttimer <minutes> §7(After the given time in minutes, maintenance mode will be enabled)");
+            sender.sendMessage("§6/maintenance endtimer <minutes> §7(Enables maintenance mode. After the given time in minutes, maintenance mode will be disabled)");
+            sender.sendMessage("§6/maintenance timer abort §7(If running, the current timer will be aborted)");
+        }
+        if (sender.hasPermission("maintenance.whitelist.list"))
+            sender.sendMessage("§6/maintenance whitelist §7(Shows all whitelisted players for the maintenance mode)");
+        if (sender.hasPermission("maintenance.whitelist.add"))
+            sender.sendMessage("§6/maintenance add <player> §7(Adds the player to the maintenance whitelist, so they can join the server even though maintenance is enabled)");
+        if (sender.hasPermission("maintenance.whitelist.remove"))
+            sender.sendMessage("§6/maintenance remove <player> §7(Removes the player from the maintenance whitelist)");
+        if (sender.hasPermission("maintenance.setmotd")) {
+            sender.sendMessage("§6/maintenance setmotd <index> <1/2> <message> §7(Sets a motd for maintenance mode)");
+            sender.sendMessage("§6/maintenance removemotd <index> §7(Removes a maintenance motd)");
+        }
+        if (sender.hasPermission("maintenance.motd"))
+            sender.sendMessage("§6/maintenance motd §7(Lists the currently set maintenance motds)");
+        if (sender.hasPermission("maintenance.update"))
+            sender.sendMessage("§6/maintenance update §7(Remotely downloads the newest version of the plugin onto your server)");
+        sender.sendMessage("§8× §7Created by §bKennyTV");
+        sender.sendMessage("§8===========[ §e" + name + " §8| §eVersion: §e" + plugin.getVersion() + " §8]===========");
+        sender.sendMessage("");
+    }
+
+    private boolean checkPermission(final SenderInfo sender, final String permission) {
+        if (!sender.hasPermission("maintenance." + permission)) {
+            sender.sendMessage(settings.getMessage("noPermission"));
+            return true;
+        }
+        return false;
+    }
+
+    private boolean isNumeric(final String string) {
+        try {
+            Integer.parseInt(string);
+        } catch (final NumberFormatException nfe) {
+            return false;
+        }
+        return true;
+    }
+
+    protected abstract void addPlayerToWhitelist(SenderInfo sender, String name);
+
+    protected abstract void removePlayerFromWhitelist(SenderInfo sender, String name);
+
+    protected abstract void checkForUpdate(SenderInfo sender);
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/listener/IPingListener.java

@@ -0,0 +1,6 @@
+package eu.kennytv.maintenance.core.listener;
+
+public interface IPingListener {
+
+    boolean loadIcon();
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/runnable/MaintenanceRunnable.java

@@ -7,28 +7,51 @@ public final class MaintenanceRunnable implements Runnable {
     private final MaintenanceModePlugin plugin;
     private final Settings settings;
     private final boolean enable;
-    private int minutes;
+    private int seconds;
 
     public MaintenanceRunnable(final MaintenanceModePlugin plugin, final Settings settings, final int minutes, final boolean enable) {
         this.plugin = plugin;
         this.settings = settings;
-        this.minutes = minutes;
+        this.seconds = minutes * 60;
         this.enable = enable;
     }
 
     @Override
     public void run() {
-        if (minutes <= 0) {
+        if (seconds == 0) {
             plugin.setMaintenance(enable);
-
-            plugin.cancelTask();
-        } else if (settings.getBroadcastIntervalls().contains(minutes)) {
+            if (plugin.isTaskRunning())
+                plugin.cancelTask();
+        } else if (settings.getBroadcastIntervalls().contains(seconds)) {
             if (enable)
-                plugin.broadcast(settings.getTimerBroadcastMessage().replaceAll("%MINUTES%", String.valueOf(minutes)));
+                plugin.broadcast(settings.getMessage("starttimerBroadcast").replaceAll("%TIME%", getTime()));
             else
-                plugin.broadcast(settings.getEndtimerBroadcastMessage().replaceAll("%MINUTES%", String.valueOf(minutes)));
+                plugin.broadcast(settings.getMessage("endtimerBroadcast").replaceAll("%TIME%", getTime()));
         }
 
-        minutes--;
+        seconds--;
+    }
+
+    public String getTime() {
+        final int preHours = this.seconds / 60;
+        final int minutes = preHours % 60;
+        final int seconds = this.seconds % 60;
+
+        final StringBuilder buider = new StringBuilder();
+        append(buider, "hour", preHours / 60);
+        append(buider, "minute", minutes);
+        append(buider, "second", seconds);
+        return buider.toString();
+    }
+
+    private void append(final StringBuilder builder, final String timeUnit, final int time) {
+        if (time == 0) return;
+        if (builder.length() != 0)
+            builder.append(" ");
+        builder.append(time).append(" ").append(settings.getMessage(time == 1 ? timeUnit : timeUnit + "s"));
+    }
+
+    public int getSecondsLeft() {
+        return seconds;
     }
 }

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/util/MessageUtil.java

@@ -1,13 +0,0 @@
-package eu.kennytv.maintenance.core.util;
-
-public final class MessageUtil {
-
-    public static boolean isNumeric(final String string) {
-        try {
-            Integer.parseInt(string);
-        } catch (final NumberFormatException nfe) {
-            return false;
-        }
-        return true;
-    }
-}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/util/SenderInfo.java

@@ -0,0 +1,14 @@
+package eu.kennytv.maintenance.core.util;
+
+import java.util.UUID;
+
+public abstract class SenderInfo {
+
+    public abstract UUID getUuid();
+
+    public abstract String getName();
+
+    public abstract boolean hasPermission(String permission);
+
+    public abstract void sendMessage(String message);
+}

Maintenance-Core/src/main/resources/language.yml

@@ -0,0 +1,48 @@
+# Maintenance Plugin by KennyTV
+# Don't remove words inbetween the '%' if you don't exactly know why you're doing it
+
+noPermission: "&cYou do not have the permission to execute that command."
+reload: "&8[&eMaintenance&8] &aReloaded config, whitelistedplayers, language file and the maintenance icon."
+alreadyEnabled: "&8[&eMaintenance&8] &cMaintenance already is enabled!"
+alreadyDisabled: "&8[&eMaintenance&8] &cMaintenance already is disabled!"
+maintenanceActivated: "&8[&eMaintenance&8] &6Maintenance mode is now activated."
+maintenanceDeactivated: "&8[&eMaintenance&8] &6Maintenance mode is now deactivated."
+starttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <minutes>"
+starttimerStarted: "&8[&eMaintenance&8] &aStarted timer: &7Maintenance mode will be activated in &6%TIME%&7."
+starttimerBroadcast: "&8[&eMaintenance&8] &7Maintenance mode will be enabled in &6%TIME%&7."
+endtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <minutes>"
+endtimerStarted: "&8[&eMaintenance&8] &aStarted timer: &7Maintenance mode will be deactivated in &6%TIME%&7."
+endtimerBroadcast: "&8[&eMaintenance&8] &7Maintenance mode will be disabled in &6%TIME%&7."
+timerTooLong: "&8[&eMaintenance&8] &cThe number has to be less than 40320 (28 days)!"
+timerAlreadyRunning: "&8[&eMaintenance&8] &cThere's already a starttimer scheduled!"
+timerNotRunning: "&8[&eMaintenance&8] &cThere's currently no running timer."
+timerCancelled: "&8[&eMaintenance&8] &cThe current timer has been disabled."
+joinNotification: "&8[&eMaintenance&8] &e%PLAYER% &ctried to join the server."
+updateDownloading: "&8[&eMaintenance&8] &c&lDownloading update..."
+updateFinished: "&8[&eMaintenance&8] &a&lThe update was successful! To prevent issues with tasks and to complete the update, you have to restart the server!"
+updateFailed: "&8[&eMaintenance&8] &4&lUpdate failed!"
+setMotdUsage: "&8[&eMaintenance&8] &c/maintenance setmotd <index> <1/2> <message>"
+setMotdLineError: "&8[&eMaintenance&8] &cThe second argument has to be the line number (1 or 2)!"
+setMotdIndexError: "&8[&eMaintenance&8] §cYou currently have %MOTDS% motds, so you have to pick a number between 1 and %NEWAMOUNT%."
+setMotd: "&8[&eMaintenance&8] &aSet line %LINE% of the %INDEX%. maintenance motd to %MOTD%"
+removeMotdUsage: "&8[&eMaintenance&8] &c/maintenance removemotd <index>"
+removeMotdError: "&8[&eMaintenance&8] &cYou only have one motd, so you can't remove any!"
+removedMotd: "&8[&eMaintenance&8] &aRemoved motd number %INDEX%."
+motdList: "&8[&eMaintenance&8] &7List of your maintenance motds:"
+whitelistEmtpy: "&8[&eMaintenance&8] &cThe maintenance whitelist is empty! Use '/maintenance add <player>' to add someone!"
+whitelistEmptyDefault: "&8[&eMaintenance&8] &cUse '/maintenance add <player>' to add someone. Alternatively, you can add the uuid of a player to the WhitelistedPlayers.yml as seen in the example in the file!"
+whitelistedPlayers: "&8[&eMaintenance&8] &6Whitelisted players for maintenance:"
+whitelistedPlayersFormat: "&8- &e%NAME% &8(&7%UUID%&8)"
+whitelistNotFound: "&8[&eMaintenance&8] &cThis player is not in the maintenance whitelist!"
+whitelistAlreadyAdded: "&8[&eMaintenance&8] &b%PLAYER% &calready is in the maintenance whitelist!"
+whitelistAdded: "&8[&eMaintenance&8] &aAdded &b%PLAYER% &ato the maintenance whitelist!"
+whitelistRemoved: "&8[&eMaintenance&8] &aRemoved &b%PLAYER% &afrom the maintenance whitelist!"
+playerNotOnline: "&8[&eMaintenance&8] &cThere's no player online with that name."
+playerNotFound: "&8[&eMaintenance&8] &cNo player with this name has played on this server before."
+
+second: "second"
+seconds: "seconds"
+minute: "minute"
+minutes: "minutes"
+hour: "hour"
+hours: "hours"

Maintenance-Parent/pom.xml

@@ -6,29 +6,29 @@
     <parent>
         <artifactId>maintenance-base</artifactId>
         <groupId>eu.kennytv</groupId>
-        <version>2.2</version>
+        <version>2.4</version>
     </parent>
 
-    <artifactId>maintenance</artifactId>
+    <artifactId>maintenance-parent</artifactId>
     <name>Maintenance</name>
 
     <dependencies>
         <dependency>
             <groupId>eu.kennytv</groupId>
             <artifactId>maintenance-core</artifactId>
-            <version>2.2</version>
+            <version>${parent.version}</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>eu.kennytv</groupId>
-            <artifactId>maintenancebungee</artifactId>
-            <version>2.2</version>
+            <artifactId>maintenance-bungee</artifactId>
+            <version>${parent.version}</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>eu.kennytv</groupId>
-            <artifactId>maintenancespigot</artifactId>
-            <version>2.2</version>
+            <artifactId>maintenance-spigot</artifactId>
+            <version>${parent.version}</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

Maintenance-Spigot/pom.xml

@@ -3,14 +3,13 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <parent>
-        <groupId>eu.kennytv</groupId>
         <artifactId>maintenance-base</artifactId>
-        <version>2.2</version>
+        <groupId>eu.kennytv</groupId>
+        <version>2.4</version>
     </parent>
 
-    <artifactId>maintenancespigot</artifactId>
+    <artifactId>maintenance-spigot</artifactId>
     <name>MaintenanceSpigot</name>
 
     <repositories>
@@ -28,13 +27,13 @@
         <dependency>
             <groupId>eu.kennytv</groupId>
             <artifactId>maintenance-core</artifactId>
-            <version>2.2</version>
+            <version>${parent.version}</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot-api</artifactId>
-            <version>1.12.2-R0.1-SNAPSHOT</version>
+            <version>1.13.1-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -46,7 +45,7 @@
         <dependency>
             <groupId>com.comphenix.protocol</groupId>
             <artifactId>ProtocolLib-API</artifactId>
-            <version>4.3.0</version>
+            <version>4.4.0-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/MaintenanceSpigotBase.java

@@ -0,0 +1,25 @@
+package eu.kennytv.maintenance.spigot;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.IMaintenanceBase;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.io.File;
+
+public final class MaintenanceSpigotBase extends JavaPlugin implements IMaintenanceBase {
+    private IMaintenance maintenance;
+
+    @Override
+    public void onEnable() {
+        maintenance = new MaintenanceSpigotPlugin(this);
+    }
+
+    File getPluginFile() {
+        return getFile();
+    }
+
+    @Override
+    public IMaintenance getApi() {
+        return maintenance;
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/MaintenanceSpigotPlugin.java

@@ -6,9 +6,7 @@ import eu.kennytv.maintenance.api.MaintenanceSpigotAPI;
 import eu.kennytv.maintenance.core.MaintenanceModePlugin;
 import eu.kennytv.maintenance.core.hook.ServerListPlusHook;
 import eu.kennytv.maintenance.spigot.command.MaintenanceSpigotCommand;
-import eu.kennytv.maintenance.spigot.listener.PacketListener;
 import eu.kennytv.maintenance.spigot.listener.PlayerLoginListener;
-import eu.kennytv.maintenance.spigot.listener.ServerListPingListener;
 import eu.kennytv.maintenance.spigot.metrics.MetricsLite;
 import net.minecrell.serverlistplus.core.plugin.ServerListPlusPlugin;
 import org.bukkit.Server;
@@ -19,25 +17,17 @@ import java.io.File;
 
 /**
  * @author KennyTV
- * @since 1.0
+ * @since 2.0
  */
-public final class MaintenanceSpigotPlugin extends MaintenanceModePlugin implements IMaintenance {
+public final class MaintenanceSpigotPlugin extends MaintenanceModePlugin {
     private final MaintenanceSpigotBase plugin;
     private final SettingsSpigot settings;
 
-    // Great update for the Spigot version of the plugin as well as performance improvements and bugfixes in both versions!
-    // If you have ProtocolLib installed, you can set a custom server icon while maintenance is enabled, also the playercount-message and the playercount-hover-message are now available (as it has already been in the Bungee version)!
-    // The Spigot version is now much more compatible with other motd-changing plugins, such as SexyMotd!
-    // In the BungeeCord version of the plugin, the "/maintenance remove <player>" command now also works for offline players
-    // Fixed some other issues with the ProtocolLib integration
-    // Minor textfix for the updatemessage in the Spigot version
-    // General performance improvements
-
     MaintenanceSpigotPlugin(final MaintenanceSpigotBase plugin) {
         super("§8[§eMaintenanceSpigot§8] ", plugin.getDescription().getVersion());
 
         this.plugin = plugin;
-        settings = new SettingsSpigot(plugin);
+        settings = new SettingsSpigot(this, plugin);
 
         plugin.getLogger().info("Plugin by KennyTV");
         plugin.getCommand("maintenancespigot").setExecutor(new MaintenanceSpigotCommand(this, settings));
@@ -47,29 +37,19 @@ public final class MaintenanceSpigotPlugin extends MaintenanceModePlugin impleme
 
         new MetricsLite(plugin);
 
-        if (pm.getPlugin("ProtocolLib") != null)
-            new PacketListener(this, plugin, settings);
-        else
-            pm.registerEvents(new ServerListPingListener(plugin, settings), plugin);
-
         // ServerListPlus integration
         final Plugin serverListPlus = pm.getPlugin("ServerListPlus");
         if (serverListPlus != null) {
             serverListPlusHook = new ServerListPlusHook(((ServerListPlusPlugin) serverListPlus).getCore());
+            serverListPlusHook.setEnabled(!settings.isMaintenance());
             plugin.getLogger().info("Enabled ServerListPlus integration!");
         }
     }
 
-    @Override
-    public void onDisable() {
-        if (!getServer().getOnlinePlayers().isEmpty())
-            plugin.getLogger().warning("This plugin does not fully support reloads, consider restarting the server as soon as possible.");
-    }
-
     @Override
     public void setMaintenance(final boolean maintenance) {
         settings.setMaintenance(maintenance);
-        settings.setConfigBoolean("enable-maintenance-mode", maintenance);
+        settings.setToConfig("enable-maintenance-mode", maintenance);
         settings.saveConfig();
         settings.reloadConfigs();
 
@@ -83,19 +63,14 @@ public final class MaintenanceSpigotPlugin extends MaintenanceModePlugin impleme
             getServer().getOnlinePlayers().stream()
                     .filter(p -> !p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId()))
                     .forEach(p -> p.kickPlayer(settings.getKickMessage().replace("%NEWLINE%", "\n")));
-            getServer().broadcastMessage(settings.getMaintenanceActivated());
+            getServer().broadcastMessage(settings.getMessage("maintenanceActivated"));
         } else
-            getServer().broadcastMessage(settings.getMaintenanceDeactivated());
+            getServer().broadcastMessage(settings.getMessage("maintenanceDeactivated"));
     }
 
     @Override
-    public boolean isMaintenance() {
-        return settings.isMaintenance();
-    }
-
-    @Override
-    public int schedule(final Runnable runnable) {
-        return getServer().getScheduler().scheduleSyncRepeatingTask(plugin, runnable, 0, 1200);
+    public int startMaintenanceRunnable(final Runnable runnable) {
+        return getServer().getScheduler().scheduleSyncRepeatingTask(plugin, runnable, 0, 20);
     }
 
     @Override
@@ -106,7 +81,8 @@ public final class MaintenanceSpigotPlugin extends MaintenanceModePlugin impleme
     @Override
     public void cancelTask() {
         getServer().getScheduler().cancelTask(taskId);
-        setTaskId(0);
+        runnable = null;
+        taskId = 0;
     }
 
     @Override

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/SettingsSpigot.java

@@ -0,0 +1,156 @@
+package eu.kennytv.maintenance.spigot;
+
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import eu.kennytv.maintenance.spigot.listener.PacketListener;
+import eu.kennytv.maintenance.spigot.listener.ServerListPingListener;
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.plugin.PluginManager;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.UUID;
+
+public final class SettingsSpigot extends Settings {
+    private final MaintenanceSpigotBase plugin;
+    private final IPingListener pingListener;
+    private FileConfiguration config;
+    private FileConfiguration language;
+    private FileConfiguration whitelist;
+
+    SettingsSpigot(final MaintenanceSpigotPlugin pl, final MaintenanceSpigotBase plugin) {
+        super(pl);
+        this.plugin = plugin;
+
+        final PluginManager pm = plugin.getServer().getPluginManager();
+        if (pm.getPlugin("ProtocolLib") != null) {
+            pingListener = new PacketListener(plugin, this);
+        } else {
+            final ServerListPingListener listener = new ServerListPingListener(plugin, this);
+            pm.registerEvents(listener, plugin);
+            pingListener = listener;
+        }
+
+        if (!plugin.getDataFolder().exists())
+            plugin.getDataFolder().mkdirs();
+        createFile("spigot-config.yml");
+        createFile("language.yml");
+        createFile("WhitelistedPlayers.yml");
+
+        reloadConfigs();
+    }
+
+    private void createFile(final String name) {
+        final File file = new File(plugin.getDataFolder(), name);
+        if (!file.exists()) {
+            try (final InputStream in = plugin.getResource(name)) {
+                Files.copy(in, file.toPath());
+            } catch (final IOException e) {
+                throw new RuntimeException("Unable to create " + name + " file for Maintenance!", e);
+            }
+        }
+    }
+
+    @Override
+    public void saveConfig() {
+        try {
+            config.save(new File(plugin.getDataFolder(), "spigot-config.yml"));
+        } catch (final IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void saveWhitelistedPlayers() {
+        try {
+            whitelist.save(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
+        } catch (final IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void reloadConfigs() {
+        try {
+            final File file = new File(plugin.getDataFolder(), "spigot-config.yml");
+            config = YamlConfiguration.loadConfiguration(new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8));
+            final File languageFile = new File(plugin.getDataFolder(), "language.yml");
+            language = YamlConfiguration.loadConfiguration(new InputStreamReader(new FileInputStream(languageFile), StandardCharsets.UTF_8));
+            whitelist = YamlConfiguration.loadConfiguration(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to load Maintenance files!", e);
+        }
+
+        loadSettings();
+    }
+
+    @Override
+    public void loadExtraSettings() {
+        whitelistedPlayers.clear();
+        whitelist.getKeys(false).forEach(key -> whitelistedPlayers.put(UUID.fromString(key), whitelist.getString(key)));
+    }
+
+    @Override
+    public void setWhitelist(final String uuid, final String s) {
+        whitelist.set(uuid, s);
+    }
+
+    @Override
+    public String getConfigString(final String path) {
+        final String s = config.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The config is missing the following string: " + path);
+            return "null";
+        }
+        return s;
+    }
+
+    @Override
+    public String getMessage(final String path) {
+        final String s = language.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The language file is missing the following string: " + path);
+            return "null";
+        }
+        return ChatColor.translateAlternateColorCodes('&', s);
+    }
+
+    @Override
+    public boolean getConfigBoolean(final String path) {
+        return config.getBoolean(path);
+    }
+
+    @Override
+    public List<Integer> getConfigIntList(final String path) {
+        return config.getIntegerList(path);
+    }
+
+    @Override
+    public List<String> getConfigList(final String path) {
+        return config.getStringList(path);
+    }
+
+    @Override
+    public void setToConfig(final String path, final Object var) {
+        config.set(path, var);
+    }
+
+    @Override
+    public boolean configContains(final String path) {
+        return config.contains(path);
+    }
+
+    @Override
+    public String getColoredString(final String message) {
+        return ChatColor.translateAlternateColorCodes('&', message);
+    }
+
+    @Override
+    public boolean reloadMaintenanceIcon() {
+        return pingListener.loadIcon();
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/command/MaintenanceSpigotCommand.java

@@ -0,0 +1,83 @@
+package eu.kennytv.maintenance.spigot.command;
+
+import eu.kennytv.maintenance.core.command.MaintenanceCommand;
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotPlugin;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+import eu.kennytv.maintenance.spigot.util.BukkitSenderInfo;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public final class MaintenanceSpigotCommand extends MaintenanceCommand implements CommandExecutor {
+
+    public MaintenanceSpigotCommand(final MaintenanceSpigotPlugin plugin, final SettingsSpigot settings) {
+        super(plugin, settings, "MaintenanceSpigot");
+    }
+
+    @Override
+    public boolean onCommand(final CommandSender sender, final Command cmd, final String s, final String[] args) {
+        execute(new BukkitSenderInfo(sender), args);
+        return true;
+    }
+
+    @Override
+    protected void addPlayerToWhitelist(final SenderInfo sender, final String name) {
+        final Player selected = Bukkit.getPlayer(name);
+        if (selected != null) {
+            if (settings.addWhitelistedPlayer(selected.getUniqueId(), selected.getName()))
+                sender.sendMessage(settings.getMessage("whitelistAdded").replace("%PLAYER%", selected.getName()));
+            else
+                sender.sendMessage(settings.getMessage("whitelistAlreadyAdded").replace("%PLAYER%", selected.getName()));
+            return;
+        }
+
+        final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(name);
+        if (!offlinePlayer.hasPlayedBefore()) {
+            sender.sendMessage(settings.getMessage("playerNotFound"));
+            return;
+        }
+
+        if (settings.addWhitelistedPlayer(offlinePlayer.getUniqueId(), offlinePlayer.getName()))
+            sender.sendMessage(settings.getMessage("whitelistAdded").replace("%PLAYER%", offlinePlayer.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistAlreadyAdded").replace("%PLAYER%", offlinePlayer.getName()));
+    }
+
+    @Override
+    protected void removePlayerFromWhitelist(final SenderInfo sender, final String name) {
+        final Player selected = Bukkit.getPlayer(name);
+        if (selected != null) {
+            if (settings.removeWhitelistedPlayer(selected.getUniqueId()))
+                sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", selected.getName()));
+            else
+                sender.sendMessage(settings.getMessage("whitelistNotFound"));
+            return;
+        }
+
+        final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(name);
+        if (!offlinePlayer.hasPlayedBefore()) {
+            sender.sendMessage(settings.getMessage("playerNotFound"));
+            return;
+        }
+
+        if (settings.removeWhitelistedPlayer(offlinePlayer.getUniqueId()))
+            sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", offlinePlayer.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistNotFound"));
+    }
+
+    @Override
+    protected void checkForUpdate(final SenderInfo sender) {
+        if (plugin.updateAvailable()) {
+            sender.sendMessage(plugin.getPrefix() + "§cNewest version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+            sender.sendMessage(plugin.getPrefix() + "§c§lWARNING: §cYou will have to restart the server to prevent further issues and to complete the update!" +
+                    " If you can't do that, don't update!");
+            sender.sendMessage(plugin.getPrefix() + "§eUse §c§l/maintenance forceupdate §eto update!");
+        } else
+            sender.sendMessage(plugin.getPrefix() + "§aYou already have the latest version of the plugin!");
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/PacketListener.java

@@ -0,0 +1,63 @@
+package eu.kennytv.maintenance.spigot.listener;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.wrappers.WrappedGameProfile;
+import com.comphenix.protocol.wrappers.WrappedServerPing;
+import com.google.common.collect.Lists;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotBase;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+
+import javax.imageio.ImageIO;
+import java.io.File;
+import java.util.List;
+import java.util.UUID;
+
+public final class PacketListener implements IPingListener {
+    private final MaintenanceSpigotBase pl;
+    private WrappedServerPing.CompressedImage image;
+
+    public PacketListener(final MaintenanceSpigotBase base, final SettingsSpigot settings) {
+        this.pl = base;
+        ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(base, ListenerPriority.HIGHEST,
+                PacketType.Status.Server.SERVER_INFO) {
+            @Override
+            public void onPacketSending(final PacketEvent event) {
+                if (!settings.isMaintenance()) return;
+
+                final WrappedServerPing ping = event.getPacket().getServerPings().read(0);
+                ping.setMotD(settings.getRandomPingMessage());
+
+                if (settings.hasCustomPlayerCountMessage()) {
+                    ping.setVersionProtocol(0);
+                    ping.setVersionName(settings.getPlayerCountMessage()
+                            .replace("%ONLINE%", Integer.toString(pl.getServer().getOnlinePlayers().size()))
+                            .replace("%MAX%", Integer.toString(pl.getServer().getMaxPlayers())));
+                }
+
+                final List<WrappedGameProfile> players = Lists.newArrayList();
+                for (final String string : settings.getPlayerCountHoverMessage().split("%NEWLINE%"))
+                    players.add(new WrappedGameProfile(UUID.randomUUID(), string));
+                ping.setPlayers(players);
+
+                if (settings.hasCustomIcon() && image != null)
+                    ping.setFavicon(image);
+            }
+        });
+    }
+
+    @Override
+    public boolean loadIcon() {
+        try {
+            image = WrappedServerPing.CompressedImage.fromPng(ImageIO.read(new File("maintenance-icon.png")));
+        } catch (final Exception e) {
+            pl.getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Spigot folder (not the plugins folder)?");
+            return false;
+        }
+        return true;
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/PlayerLoginListener.java

@@ -1,5 +1,6 @@
 package eu.kennytv.maintenance.spigot.listener;
 
+import com.google.common.collect.Sets;
 import eu.kennytv.maintenance.spigot.MaintenanceSpigotPlugin;
 import eu.kennytv.maintenance.spigot.SettingsSpigot;
 import net.md_5.bungee.api.chat.ClickEvent;
@@ -13,14 +14,13 @@ import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerLoginEvent;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-import java.net.HttpURLConnection;
-import java.net.URL;
+import java.util.Set;
+import java.util.UUID;
 
 public final class PlayerLoginListener implements Listener {
     private final MaintenanceSpigotPlugin plugin;
     private final SettingsSpigot settings;
+    private final Set<UUID> notifiedPlayers = Sets.newHashSet();
 
     public PlayerLoginListener(final MaintenanceSpigotPlugin plugin, final SettingsSpigot settings) {
         this.plugin = plugin;
@@ -39,21 +39,19 @@ public final class PlayerLoginListener implements Listener {
 
                 if (settings.isJoinNotifications())
                     Bukkit.getOnlinePlayers().stream().filter(player -> player.hasPermission("maintenance.joinnotification"))
-                            .forEach(player -> player.sendMessage(settings.getJoinNotification().replace("%PLAYER%", p.getName())));
+                            .forEach(player -> player.sendMessage(settings.getMessage("joinNotification").replace("%PLAYER%", p.getName())));
                 return;
             }
         }
 
-        if (!p.hasPermission("maintenance.admin")) return;
+        if (!p.hasPermission("maintenance.admin") || notifiedPlayers.contains(p.getUniqueId())) return;
 
         plugin.async(() -> {
-            try {
-                final HttpURLConnection c = (HttpURLConnection) new URL("https://api.spigotmc.org/legacy/update.php?resource=40699").openConnection();
-                final String newVersion = new BufferedReader(new InputStreamReader(c.getInputStream())).readLine();
-
-                if (!newVersion.equals(plugin.getVersion())) {
-                    p.sendMessage(plugin.getPrefix() + "§cThere is a newer version available: §aVersion " + newVersion + "§c, you're still on §a" + plugin.getVersion());
+            if (plugin.updateAvailable()) {
+                p.sendMessage(plugin.getPrefix() + "§cThere is a newer version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+                notifiedPlayers.add(p.getUniqueId());
 
+                try {
                     final TextComponent tc1 = new TextComponent(TextComponent.fromLegacyText(plugin.getPrefix()));
                     final TextComponent tc2 = new TextComponent(TextComponent.fromLegacyText("§cDownload it at: §6https://www.spigotmc.org/resources/maintenancemode.40699/"));
                     final TextComponent click = new TextComponent(TextComponent.fromLegacyText(" §7§l§o(CLICK ME)"));
@@ -63,8 +61,9 @@ public final class PlayerLoginListener implements Listener {
                     tc1.addExtra(click);
 
                     p.spigot().sendMessage(tc1);
+                } catch (final Exception e) {
+                    p.sendMessage(plugin.getPrefix() + "§cDownload it at: §6https://www.spigotmc.org/resources/maintenancemode.40699/");
                 }
-            } catch (final Exception ignored) {
             }
         });
     }

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/ServerListPingListener.java

@@ -1,8 +1,8 @@
 package eu.kennytv.maintenance.spigot.listener;
 
+import eu.kennytv.maintenance.core.listener.IPingListener;
 import eu.kennytv.maintenance.spigot.MaintenanceSpigotBase;
 import eu.kennytv.maintenance.spigot.SettingsSpigot;
-import org.bukkit.Bukkit;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
@@ -12,16 +12,14 @@ import org.bukkit.util.CachedServerIcon;
 import javax.imageio.ImageIO;
 import java.io.File;
 
-public final class ServerListPingListener implements Listener {
+public final class ServerListPingListener implements Listener, IPingListener {
     private final MaintenanceSpigotBase plugin;
     private final SettingsSpigot settings;
-    private final File icon;
     private CachedServerIcon serverIcon;
 
     public ServerListPingListener(final MaintenanceSpigotBase plugin, final SettingsSpigot settings) {
         this.plugin = plugin;
         this.settings = settings;
-        icon = new File("maintenance-icon.png");
     }
 
     @EventHandler(priority = EventPriority.HIGHEST)
@@ -29,18 +27,20 @@ public final class ServerListPingListener implements Listener {
         if (!settings.isMaintenance()) return;
 
         event.setMaxPlayers(0);
-        event.setMotd(settings.getPingMessage().replace("%NEWLINE%", "\n"));
+        event.setMotd(settings.getRandomPingMessage());
 
-        if (settings.hasCustomIcon()) {
-            if (serverIcon != null)
-                event.setServerIcon(serverIcon);
-            else {
-                try {
-                    serverIcon = Bukkit.loadServerIcon(ImageIO.read(icon));
-                } catch (final Exception e) {
-                    plugin.getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Spigot/Bukkit folder (not the plugins folder)?");
-                }
-            }
+        if (settings.hasCustomIcon() && serverIcon != null)
+            event.setServerIcon(serverIcon);
+    }
+
+    @Override
+    public boolean loadIcon() {
+        try {
+            serverIcon = plugin.getServer().loadServerIcon(ImageIO.read(new File("maintenance-icon.png")));
+        } catch (final Exception e) {
+            plugin.getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Spigot folder (not the plugins folder)?");
+            return false;
         }
+        return true;
     }
 }

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/metrics/MetricsLite.java

@@ -17,6 +17,7 @@ import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.Timer;
 import java.util.TimerTask;
@@ -227,7 +228,7 @@ public final class MetricsLite {
         }
         final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         final GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
-        gzip.write(str.getBytes("UTF-8"));
+        gzip.write(str.getBytes(StandardCharsets.UTF_8));
         gzip.close();
         return outputStream.toByteArray();
     }

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/util/BukkitSenderInfo.java

@@ -0,0 +1,35 @@
+package eu.kennytv.maintenance.spigot.util;
+
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.UUID;
+
+public final class BukkitSenderInfo extends SenderInfo {
+    private final CommandSender sender;
+
+    public BukkitSenderInfo(final CommandSender sender) {
+        this.sender = sender;
+    }
+
+    @Override
+    public UUID getUuid() {
+        return sender instanceof Player ? ((Player) sender).getUniqueId() : null;
+    }
+
+    @Override
+    public String getName() {
+        return sender.getName();
+    }
+
+    @Override
+    public boolean hasPermission(final String permission) {
+        return sender.hasPermission(permission);
+    }
+
+    @Override
+    public void sendMessage(final String message) {
+        sender.sendMessage(message);
+    }
+}

Maintenance-Spigot/src/main/resources/spigot-config.yml

@@ -1,38 +1,36 @@
 # MaintenanceSpigot Plugin by KennyTV
 # Version ${project.version}
+# Important note: To use this plugin to its full extend, it requires the plugin 'ProtocolLib'
 
 # Enables maintenance-mode.
 enable-maintenance-mode: false
 
 # The message shown in the multiplayer server list motd.
-pingmessage: "&cMaintenance mode!%NEWLINE%&6We will be back soon!"
+# If you put in multiple entries, one of them will be chosen randomly on every ping.
+pingmessages:
+  - "&cMaintenance mode!%NEWLINE%&6We will be back soon!"
+ #- "Another entry"
 
-# Is shown at the top right corner of the server in the serverlist,
+# If set to true, the message below will be shown at the top right corner of the server in the serverlist,
 # where the playercount would normally be displayed.
+# If set to false, the normal playercount will be shown.
+# Alternatively you can use '%ONLINE%' and '%MAX% if you want to include the playercount in a custom message (e.g. '&cMaintenance &7%ONLINE%&8/&7%MAX%').
+enable-playercountmessage: true
 playercountmessage: "&4Maintenance"
 
 # Is shown when you move your mouse above the text at the top right corner of the server in the serverlist,
 # where the playercount would normally be displayed.
 playercounthovermessage: "&cCurrently under%NEWLINE%&cmaintenance"
 
-# Will be shown, when a player tries to join on the server without the permission.
+# Is shown when a player tries to join while maintenance is enabled and they don't have the permission to bypass it.
 kickmessage: "&cThe server is currently under maintenance!%NEWLINE%Try again later!"
 
-# Some self explanatory messages
-no-permission: "&cYou do not have the permission to execute that command."
-maintenance-activated: "&6Maintenance mode is now activated."
-maintenance-deactivated: "&6Maintenance mode is now deactivated."
-
-starttimer-broadcast-mesage: '&8[&eMaintenance&8] &7Maintenance mode will be enabled in &6%MINUTES% minutes&7.'
-endtimer-broadcast-mesage: '&8[&eMaintenance&8] &7Maintenance mode will be disabled in &6%MINUTES% minutes&7.'
-
 # If using the timer command: In what intervalls before enabling/disabling maintenance there will be a broadcast.
-timer-broadcasts-for-minutes: [60, 30, 15, 10, 5, 4, 3, 2, 1]
+timer-broadcast-for-seconds: [1200, 900, 600, 300, 120, 60, 30, 20, 10, 5, 4, 3, 2, 1]
 
 # If set to true, players with the maintenance.joinnotification permission will receive a message,
 # that a player tried to join the server while maintenance is enabled.
 send-join-notification: false
-join-notification: "&e%PLAYER% &ctried to join the server."
 
 # If set to true, the server icon will be changed to maintenance-icon.png in the Bungee main/base-folder.
 custom-maintenance-icon: false

MaintenanceBungee/src/main/java/eu/kennytv/maintenance/bungee/MaintenanceBungeeBase.java

@@ -1,27 +0,0 @@
-package eu.kennytv.maintenance.bungee;
-
-import net.md_5.bungee.api.plugin.Plugin;
-
-import java.io.File;
-
-/**
- * @author KennyTV
- * @since 2.1
- */
-public final class MaintenanceBungeeBase extends Plugin {
-    private MaintenanceBungeePlugin plugin;
-
-    @Override
-    public void onEnable() {
-        plugin = new MaintenanceBungeePlugin(this);
-    }
-
-    @Override
-    public void onDisable() {
-        plugin.onDisable();
-    }
-
-    File getPluginFile() {
-        return getFile();
-    }
-}

MaintenanceBungee/src/main/java/eu/kennytv/maintenance/bungee/SettingsBungee.java

@@ -1,173 +0,0 @@
-package eu.kennytv.maintenance.bungee;
-
-import eu.kennytv.maintenance.api.ISettings;
-import eu.kennytv.maintenance.bungee.mysql.MySQL;
-import eu.kennytv.maintenance.core.Settings;
-import net.md_5.bungee.api.ChatColor;
-import net.md_5.bungee.config.Configuration;
-import net.md_5.bungee.config.YamlConfiguration;
-
-import java.io.*;
-import java.nio.file.Files;
-import java.sql.SQLException;
-import java.util.List;
-import java.util.UUID;
-
-public final class SettingsBungee extends Settings implements ISettings {
-    private static final String UPDATE = "INSERT INTO %s (setting, value) VALUES (?, ?) ON DUPLICATE KEY UPDATE value = ?";
-    private final MaintenanceBungeeBase plugin;
-
-    private final MySQL mySQL;
-    private final String mySQLTable;
-
-    private Configuration config;
-    private Configuration whitelist;
-
-    SettingsBungee(final MaintenanceBungeeBase plugin) {
-        this.plugin = plugin;
-        reloadConfigs(createFiles());
-
-        final Configuration mySQLSection = config.getSection("mysql");
-        if (mySQLSection.getBoolean("use-mysql", false)) {
-            // Needed: One column named "setting" (primary key), another named "value".
-            plugin.getLogger().info("Trying to open database connection...");
-            mySQL = new MySQL(mySQLSection.getString("host"),
-                    mySQLSection.getInt("port"),
-                    mySQLSection.getString("username"),
-                    mySQLSection.getString("password"),
-                    mySQLSection.getString("database"));
-            mySQLTable = mySQLSection.getString("table");
-            plugin.getLogger().info("Done!");
-        } else {
-            mySQL = null;
-            mySQLTable = null;
-        }
-    }
-
-    @Override
-    public void reloadConfigs() {
-        reloadConfigs(false);
-    }
-
-    @Override
-    public void saveConfig() {
-        final File file = new File(plugin.getDataFolder(), "bungee-config.yml");
-        try {
-            YamlConfiguration.getProvider(YamlConfiguration.class).save(config, new OutputStreamWriter(new FileOutputStream(file), "UTF8"));
-        } catch (final IOException e) {
-            throw new RuntimeException("Unable to save bungee-config.yml!", e);
-        }
-    }
-
-    @Override
-    public void saveWhitelistedPlayers() {
-        final File file = new File(plugin.getDataFolder(), "WhitelistedPlayers.yml");
-        try {
-            YamlConfiguration.getProvider(YamlConfiguration.class).save(whitelist, file);
-        } catch (final IOException e) {
-            throw new RuntimeException("Unable to save WhitelistedPlayers.yml!", e);
-        }
-    }
-
-    private void reloadConfigs(final boolean createdNewWhitelist) {
-        final File file = new File(plugin.getDataFolder(), "bungee-config.yml");
-        try {
-            config = YamlConfiguration.getProvider(YamlConfiguration.class).load(new InputStreamReader(new FileInputStream(file), "UTF8"));
-            whitelist = YamlConfiguration.getProvider(YamlConfiguration.class).load(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
-        } catch (final IOException e) {
-            throw new RuntimeException("Unable to load bungee-config.yml!", e);
-        }
-
-        if (createdNewWhitelist) {
-            whitelist.set("a8179ff3-c201-4a75-bdaa-9d14aca6f83f", "KennyTV");
-            saveWhitelistedPlayers();
-        }
-
-        loadSettings();
-    }
-
-    @Override
-    public void loadExtraSettings() {
-        whitelistedPlayers.clear();
-        whitelist.getKeys().forEach(key -> whitelistedPlayers.put(UUID.fromString(key), whitelist.getString(key)));
-    }
-
-    @Override
-    public void setWhitelist(final String uuid, final String s) {
-        whitelist.set(uuid, s);
-    }
-
-    @Override
-    public boolean createFiles() {
-        if (!plugin.getDataFolder().exists())
-            plugin.getDataFolder().mkdirs();
-
-        final File file = new File(plugin.getDataFolder(), "bungee-config.yml");
-        if (!file.exists()) {
-            try (final InputStream in = plugin.getResourceAsStream("bungee-config.yml")) {
-                Files.copy(in, file.toPath());
-            } catch (final IOException e) {
-                throw new RuntimeException("Unable to create bungee-config.yml file for MaintenanceBungee", e);
-            }
-        }
-
-        boolean createdNewWhitelist = false;
-        final File whitelistFile = new File(plugin.getDataFolder(), "WhitelistedPlayers.yml");
-        if (!whitelistFile.exists()) {
-            createdNewWhitelist = true;
-            try {
-                whitelistFile.createNewFile();
-            } catch (final IOException e) {
-                throw new RuntimeException("Unable to create WhitelistedPlayers.yml file for MaintenanceBungee", e);
-            }
-        }
-
-        return createdNewWhitelist;
-    }
-
-    @Override
-    public String getConfigString(final String path) {
-        return ChatColor.translateAlternateColorCodes('&', config.getString(path));
-    }
-
-    @Override
-    public boolean getConfigBoolean(final String path) {
-        return config.getBoolean(path);
-    }
-
-    @Override
-    public List<Integer> getBroadcastIntervallList() {
-        return config.getIntList("timer-broadcasts-for-minutes");
-    }
-
-    @Override
-    public void setConfigBoolean(final String path, final boolean var) {
-        config.set(path, var);
-    }
-
-    @Override
-    public boolean isMaintenance() {
-        if (mySQL != null) {
-            mySQL.executeQuery("SELECT * FROM " + mySQLTable + " WHERE setting LIKE ?", rs -> {
-                try {
-                    maintenance = rs.next() && Boolean.parseBoolean(rs.getString("value"));
-                } catch (final SQLException e) {
-                    e.printStackTrace();
-                }
-            }, "maintenance");
-        }
-
-        return maintenance;
-    }
-
-    public void setMaintenanceToSQL(final boolean maintenance) {
-        plugin.getProxy().getScheduler().runAsync(plugin, () ->
-                mySQL.executeUpdate(String.format(UPDATE, mySQLTable), res -> {
-                }, "maintenance", String.valueOf(maintenance), String.valueOf(maintenance)));
-        this.maintenance = maintenance;
-    }
-
-    public MySQL getMySQL() {
-        return mySQL;
-    }
-}

MaintenanceBungee/src/main/java/eu/kennytv/maintenance/bungee/command/MaintenanceBungeeCommand.java

@@ -1,198 +0,0 @@
-package eu.kennytv.maintenance.bungee.command;
-
-import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
-import eu.kennytv.maintenance.bungee.SettingsBungee;
-import eu.kennytv.maintenance.core.runnable.MaintenanceRunnable;
-import eu.kennytv.maintenance.core.util.MessageUtil;
-import net.md_5.bungee.api.CommandSender;
-import net.md_5.bungee.api.chat.ClickEvent;
-import net.md_5.bungee.api.chat.HoverEvent;
-import net.md_5.bungee.api.chat.TextComponent;
-import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.api.plugin.Command;
-
-import java.util.Map;
-import java.util.UUID;
-
-public final class MaintenanceBungeeCommand extends Command {
-    private final MaintenanceBungeePlugin plugin;
-    private final SettingsBungee settings;
-
-    public MaintenanceBungeeCommand(final MaintenanceBungeePlugin plugin, final SettingsBungee settings) {
-        super("maintenance", "", "maintenancebungee");
-        this.plugin = plugin;
-        this.settings = settings;
-    }
-
-    public void execute(final CommandSender sender, final String[] args) {
-        if (!sender.hasPermission("maintenance.admin")) {
-            sender.sendMessage(settings.getNoPermMessage());
-            return;
-        }
-
-        if (args.length == 1) {
-            if (args[0].equalsIgnoreCase("on")) {
-                plugin.setMaintenance(true);
-            } else if (args[0].equalsIgnoreCase("off")) {
-                plugin.setMaintenance(false);
-            } else if (args[0].equalsIgnoreCase("reload")) {
-                if (!sender.hasPermission("maintenance.reload")) {
-                    sender.sendMessage(settings.getNoPermMessage());
-                    return;
-                }
-
-                settings.reloadConfigs();
-                sender.sendMessage(plugin.getPrefix() + "§aReloaded config.yml");
-            } else if (args[0].equalsIgnoreCase("update")) {
-                if (!sender.hasPermission("maintenance.admin")) {
-                    sender.sendMessage(settings.getNoPermMessage());
-                    return;
-                }
-
-                checkForUpdate(sender);
-            } else if (args[0].equals("forceupdate")) {
-                if (!sender.hasPermission("maintenance.admin")) {
-                    sender.sendMessage(settings.getNoPermMessage());
-                    return;
-                }
-
-                sender.sendMessage(plugin.getPrefix() + "§c§lDownloading update...");
-
-                if (plugin.installUpdate())
-                    sender.sendMessage(plugin.getPrefix() + "§a§lThe update was successful! To prevent issues with tasks and to complete the update, you have to restart the proxy!");
-                else
-                    sender.sendMessage(plugin.getPrefix() + "§4Failed!");
-            } else if (args[0].equalsIgnoreCase("whitelist")) {
-                final Map<UUID, String> players = settings.getWhitelistedPlayers();
-                if (players.isEmpty()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThe maintenance whitelist is empty! Use \"/maintenance add <player>\" to add someone!");
-                } else if (players.size() == 1 && players.containsKey(UUID.fromString("a8179ff3-c201-4a75-bdaa-9d14aca6f83f"))) {
-                    sender.sendMessage(plugin.getPrefix() + "§cUse \"/maintenance add <player>\" to add someone. Alternatively, you can add the uuid of a player to the WhitelistedPlayers.yml as seen in the example in the file!");
-                } else {
-                    sender.sendMessage("§6Whitelisted players for maintenance:");
-                    players.forEach((key, value) -> sender.sendMessage("§8- §e" + value));
-                    sender.sendMessage("");
-                }
-            } else
-                sendUsage(sender);
-        } else if (args.length == 2) {
-            if (args[0].equalsIgnoreCase("endtimer")) {
-                if (!MessageUtil.isNumeric(args[1])) {
-                    sender.sendMessage(plugin.getPrefix() + "§6/maintenance timer endtimer <minutes>");
-                    return;
-                }
-                if (plugin.isTaskRunning()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThere's already a starttimer scheduled!");
-                    return;
-                }
-
-                final int minutes = Integer.parseInt(args[1]);
-                if (minutes > 40320) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThe number has to be less than 40320 (28 days)!");
-                    return;
-                }
-                if (minutes < 1) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThink about running a timer for a negative amount of minutes. Doesn't work §othat §r§cwell.");
-                    return;
-                }
-
-                plugin.setMaintenance(true);
-                sender.sendMessage(plugin.getPrefix() + "§aStarted timer: §7Maintenance mode will be deactivated in §6" + minutes + " minutes§7.");
-                plugin.setTaskId(plugin.schedule(new MaintenanceRunnable(plugin, settings, minutes, false)));
-            } else if (args[0].equalsIgnoreCase("starttimer")) {
-                if (!MessageUtil.isNumeric(args[1])) {
-                    sender.sendMessage(plugin.getPrefix() + "§6/maintenance timer starttimer <minutes>");
-                    return;
-                }
-                if (plugin.isTaskRunning()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThere's already running a timer!");
-                    return;
-                }
-
-                final int minutes = Integer.parseInt(args[1]);
-                if (minutes > 40320) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThe number has to be less than 40320 (28 days)!");
-                    return;
-                }
-                if (minutes < 1) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThink about running a timer for a negative amount of minutes. Doesn't work §othat §r§cwell.");
-                    return;
-                }
-
-                sender.sendMessage(plugin.getPrefix() + "§aStarted timer: §7Maintenance mode will be activated in §6" + minutes + " minutes§7.");
-                plugin.setTaskId(plugin.schedule(new MaintenanceRunnable(plugin, settings, minutes, true)));
-            } else if (args[0].equalsIgnoreCase("timer")) {
-                if (args[1].equalsIgnoreCase("abort") || args[1].equalsIgnoreCase("stop") || args[1].equalsIgnoreCase("cancel")) {
-                    if (!plugin.isTaskRunning()) {
-                        sender.sendMessage(plugin.getPrefix() + "§cThere's currently no running timer.");
-                        return;
-                    }
-
-                    plugin.cancelTask();
-                    sender.sendMessage(plugin.getPrefix() + "§cThe timer has been disabled.");
-                } else
-                    sendUsage(sender);
-            } else if (args[0].equalsIgnoreCase("add")) {
-                final ProxiedPlayer player = plugin.getProxy().getPlayer(args[1]);
-                if (player == null) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThere's no player online with that name.");
-                    return;
-                }
-
-                if (settings.addWhitelistedPlayer(player.getUniqueId(), player.getName()))
-                    sender.sendMessage(plugin.getPrefix() + "§aAdded §b" + player.getName() + " §ato the maintenance whitelist!");
-                else
-                    sender.sendMessage(plugin.getPrefix() + "§b" + player.getName() + " §calready is in the maintenance whitelist!");
-            } else if (args[0].equalsIgnoreCase("remove")) {
-                final ProxiedPlayer player = plugin.getProxy().getPlayer(args[1]);
-                if (player == null) {
-                    if (settings.removeWhitelistedPlayer(args[1].toLowerCase()))
-                        sender.sendMessage(plugin.getPrefix() + "§aRemoved §b" + args[1].toLowerCase() + " §afrom the maintenance whitelist!");
-                    else
-                        sender.sendMessage(plugin.getPrefix() + "§cThere is no player with that name in the maintenance whitelist!");
-                    return;
-                }
-
-                if (settings.removeWhitelistedPlayer(player.getUniqueId()))
-                    sender.sendMessage(plugin.getPrefix() + "§aRemoved §b" + player.getName() + " §afrom the maintenance whitelist!");
-                else
-                    sender.sendMessage(plugin.getPrefix() + "§cThis player is not in the maintenance whitelist!");
-            } else
-                sendUsage(sender);
-        } else
-            sendUsage(sender);
-    }
-
-    private void sendUsage(final CommandSender sender) {
-        sender.sendMessage("");
-        sender.sendMessage("§8===========[ §eMaintenanceBungee §8| §eVersion: §e" + plugin.getVersion() + " §8]===========");
-        sender.sendMessage("§6/maintenance reload §7(Reloads the config file)");
-        sender.sendMessage("§6/maintenance on §7(Enables maintenance mode");
-        sender.sendMessage("§6/maintenance off §7(Disables maintenance mode)");
-        sender.sendMessage("§6/maintenance starttimer <minutes> §7(After the given time in minutes, maintenance mode will be enabled. Broadcast settings for the timer can be found in the config)");
-        sender.sendMessage("§6/maintenance endtimer <minutes> §7(Enables maintenance mode. After the given time in minutes, maintenance mode will be disabled)");
-        sender.sendMessage("§6/maintenance timer abort §7(If running, the current timer will be aborted)");
-        sender.sendMessage("§6/maintenance add <player> §7(Adds the player to the maintenance whitelist, so they can join the server even though maintenance is enabled)");
-        sender.sendMessage("§6/maintenance remove <player> §7(Removes the player from the maintenance whitelist)");
-        sender.sendMessage("§6/maintenance whitelist §7(Shows all whitelisted players for the maintenance mode)");
-        sender.sendMessage("§6/maintenance update §7(Remotely downloads the newest version of the plugin onto your server)");
-        sender.sendMessage("§9Created by: KennyTV");
-        sender.sendMessage("§8===========[ §eMaintenanceBungee §8| §eVersion: §e" + plugin.getVersion() + " §8]===========");
-        sender.sendMessage("");
-    }
-
-    private void checkForUpdate(final CommandSender sender) {
-        if (plugin.updateAvailable()) {
-            sender.sendMessage(plugin.getPrefix() + "§cNewest version available: §aVersion " + plugin.getNewestVersion() + "§c, you're still on §a" + plugin.getVersion());
-            sender.sendMessage(plugin.getPrefix() + "§c§lWARNING: §cYou will have to restart the proxy to prevent further issues and to complete the update!" +
-                    " If you can't do that, don't update!");
-            final TextComponent tc = new TextComponent("§6× §8[§aUpdate§8]");
-            tc.setClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/maintenance forceupdate"));
-            tc.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, TextComponent.fromLegacyText("§aClick here to update the plugin")));
-            tc.addExtra(" §8< §7Or use the command §c/maintenace forceupdate");
-
-            sender.sendMessage(tc);
-        } else
-            sender.sendMessage(plugin.getPrefix() + "§aYou already have the latest version of the plugin!");
-    }
-}

MaintenanceBungee/src/main/java/eu/kennytv/maintenance/bungee/listener/ProxyPingListener.java

@@ -1,51 +0,0 @@
-package eu.kennytv.maintenance.bungee.listener;
-
-import eu.kennytv.maintenance.bungee.MaintenanceBungeeBase;
-import eu.kennytv.maintenance.bungee.SettingsBungee;
-import net.md_5.bungee.api.Favicon;
-import net.md_5.bungee.api.ServerPing;
-import net.md_5.bungee.api.event.ProxyPingEvent;
-import net.md_5.bungee.api.plugin.Listener;
-import net.md_5.bungee.event.EventHandler;
-import net.md_5.bungee.event.EventPriority;
-
-import javax.imageio.ImageIO;
-import java.io.File;
-import java.io.IOException;
-
-public final class ProxyPingListener implements Listener {
-    private final MaintenanceBungeeBase plugin;
-    private final SettingsBungee settings;
-    private final File icon;
-    private Favicon favicon;
-
-    public ProxyPingListener(final MaintenanceBungeeBase plugin, final SettingsBungee settings) {
-        this.plugin = plugin;
-        this.settings = settings;
-        icon = new File("maintenance-icon.png");
-    }
-
-    @EventHandler(priority = EventPriority.HIGHEST)
-    public void proxyPing(final ProxyPingEvent event) {
-        if (!settings.isMaintenance()) return;
-
-        final ServerPing ping = event.getResponse();
-        ping.setVersion(new ServerPing.Protocol(settings.getPlayerCountMessage(), 1));
-        ping.setDescription(settings.getPingMessage().replace("%NEWLINE%", "\n"));
-        ping.setPlayers(new ServerPing.Players(0, 0, new ServerPing.PlayerInfo[]{
-                new ServerPing.PlayerInfo(settings.getPlayerCountHoverMessage().replace("%NEWLINE%", "\n"), "")
-        }));
-
-        if (settings.hasCustomIcon()) {
-            if (favicon != null)
-                ping.setFavicon(favicon);
-            else {
-                try {
-                    favicon = Favicon.create(ImageIO.read(icon));
-                } catch (IOException | IllegalArgumentException e) {
-                    plugin.getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Bungee folder (not the plugins folder)?");
-                }
-            }
-        }
-    }
-}

MaintenanceSpigot/src/main/java/eu/kennytv/maintenance/spigot/MaintenanceSpigotBase.java

@@ -1,27 +0,0 @@
-package eu.kennytv.maintenance.spigot;
-
-import org.bukkit.plugin.java.JavaPlugin;
-
-import java.io.File;
-
-/**
- * @author KennyTV
- * @since 2.1
- */
-public final class MaintenanceSpigotBase extends JavaPlugin {
-    private MaintenanceSpigotPlugin plugin;
-
-    @Override
-    public void onEnable() {
-        plugin = new MaintenanceSpigotPlugin(this);
-    }
-
-    @Override
-    public void onDisable() {
-        plugin.onDisable();
-    }
-
-    File getPluginFile() {
-        return getFile();
-    }
-}

MaintenanceSpigot/src/main/java/eu/kennytv/maintenance/spigot/SettingsSpigot.java

@@ -1,111 +0,0 @@
-package eu.kennytv.maintenance.spigot;
-
-import eu.kennytv.maintenance.api.ISettings;
-import eu.kennytv.maintenance.core.Settings;
-import org.bukkit.ChatColor;
-import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.configuration.file.YamlConfiguration;
-
-import java.io.*;
-import java.nio.file.Files;
-import java.util.List;
-import java.util.UUID;
-
-public final class SettingsSpigot extends Settings implements ISettings {
-    private final MaintenanceSpigotBase plugin;
-    private FileConfiguration config;
-    private FileConfiguration whitelist;
-
-    SettingsSpigot(final MaintenanceSpigotBase plugin) {
-        this.plugin = plugin;
-        createFiles();
-        reloadConfigs();
-    }
-
-    @Override
-    public void saveConfig() {
-        try {
-            config.save(new File(plugin.getDataFolder(), "spigot-config.yml"));
-        } catch (final IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public void saveWhitelistedPlayers() {
-        try {
-            whitelist.save(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
-        } catch (final IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public void reloadConfigs() {
-        final File file = new File(plugin.getDataFolder(), "spigot-config.yml");
-        try {
-            config = YamlConfiguration.loadConfiguration(new InputStreamReader(new FileInputStream(file), "UTF8"));
-            whitelist = YamlConfiguration.loadConfiguration(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
-        } catch (final IOException e) {
-            throw new RuntimeException("Unable to load spigot-config.yml!", e);
-        }
-
-        loadSettings();
-    }
-
-    @Override
-    public void loadExtraSettings() {
-        whitelistedPlayers.clear();
-        whitelist.getKeys(false).forEach(key -> whitelistedPlayers.put(UUID.fromString(key), whitelist.getString(key)));
-    }
-
-    @Override
-    public void setWhitelist(final String uuid, final String s) {
-        whitelist.set(uuid, s);
-    }
-
-    @Override
-    public boolean createFiles() {
-        if (!plugin.getDataFolder().exists())
-            plugin.getDataFolder().mkdirs();
-
-        final File file = new File(plugin.getDataFolder(), "spigot-config.yml");
-        if (!file.exists()) {
-            try (final InputStream in = plugin.getResource("spigot-config.yml")) {
-                Files.copy(in, file.toPath());
-            } catch (final IOException e) {
-                throw new RuntimeException("Unable to create spigot-config.yml file for Maintenance!", e);
-            }
-        }
-
-        final File whitelistFile = new File(plugin.getDataFolder(), "WhitelistedPlayers.yml");
-        if (!whitelistFile.exists()) {
-            try (final InputStream in = plugin.getResource("WhitelistedPlayers.yml")) {
-                Files.copy(in, whitelistFile.toPath());
-            } catch (final IOException e) {
-                throw new RuntimeException("Unable to create WhitelistedPlayers.yml file for Maintenance!", e);
-            }
-        }
-        return true;
-    }
-
-    @Override
-    public String getConfigString(final String path) {
-        return ChatColor.translateAlternateColorCodes('&', config.getString(path));
-    }
-
-    @Override
-    public boolean getConfigBoolean(final String path) {
-        return config.getBoolean(path);
-    }
-
-    @Override
-    public List<Integer> getBroadcastIntervallList() {
-        return config.getIntegerList("timer-broadcasts-for-minutes");
-    }
-
-    @Override
-    public void setConfigBoolean(final String path, final boolean var) {
-        config.set(path, var);
-    }
-}

MaintenanceSpigot/src/main/java/eu/kennytv/maintenance/spigot/command/MaintenanceSpigotCommand.java

@@ -1,206 +0,0 @@
-package eu.kennytv.maintenance.spigot.command;
-
-import eu.kennytv.maintenance.core.runnable.MaintenanceRunnable;
-import eu.kennytv.maintenance.core.util.MessageUtil;
-import eu.kennytv.maintenance.spigot.MaintenanceSpigotPlugin;
-import eu.kennytv.maintenance.spigot.SettingsSpigot;
-import org.bukkit.Bukkit;
-import org.bukkit.OfflinePlayer;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-
-import java.util.Map;
-import java.util.UUID;
-
-public final class MaintenanceSpigotCommand implements CommandExecutor {
-    private final MaintenanceSpigotPlugin plugin;
-    private final SettingsSpigot settings;
-
-    public MaintenanceSpigotCommand(final MaintenanceSpigotPlugin plugin, final SettingsSpigot settings) {
-        this.plugin = plugin;
-        this.settings = settings;
-    }
-
-    @Override
-    public boolean onCommand(final CommandSender sender, final Command cmd, final String s, final String[] args) {
-        if (!sender.hasPermission("maintenance.admin")) {
-            sender.sendMessage(settings.getNoPermMessage());
-            return true;
-        }
-
-        if (args.length == 1) {
-            if (args[0].equalsIgnoreCase("on")) {
-                plugin.setMaintenance(true);
-            } else if (args[0].equalsIgnoreCase("off")) {
-                plugin.setMaintenance(false);
-            } else if (args[0].equalsIgnoreCase("reload")) {
-                if (!sender.hasPermission("maintenance.reload")) {
-                    sender.sendMessage(settings.getNoPermMessage());
-                    return true;
-                }
-
-                settings.reloadConfigs();
-                sender.sendMessage(plugin.getPrefix() + "§aReloaded spigot-config.yml");
-            } else if (args[0].equalsIgnoreCase("update")) {
-                if (!sender.hasPermission("maintenance.admin")) {
-                    sender.sendMessage(settings.getNoPermMessage());
-                    return true;
-                }
-
-                checkForUpdate(sender);
-            } else if (args[0].equals("forceupdate")) {
-                if (!sender.hasPermission("maintenance.admin")) {
-                    sender.sendMessage(settings.getNoPermMessage());
-                    return true;
-                }
-
-                sender.sendMessage(plugin.getPrefix() + "§c§lDownloading update...");
-
-                if (plugin.installUpdate())
-                    sender.sendMessage(plugin.getPrefix() + "§a§lThe update was successful! To prevent issues with tasks and to complete the update, you have to restart the server!");
-                else
-                    sender.sendMessage(plugin.getPrefix() + "§4Failed!");
-            } else if (args[0].equalsIgnoreCase("whitelist")) {
-                final Map<UUID, String> players = settings.getWhitelistedPlayers();
-                if (players.isEmpty()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThe maintenance whitelist is empty! Use \"/maintenance add <player>\" to add someone!");
-                } else if (players.size() == 1 && players.containsKey(UUID.fromString("a8179ff3-c201-4a75-bdaa-9d14aca6f83f"))) {
-                    sender.sendMessage(plugin.getPrefix() + "§cUse \"/maintenance add <player>\" to add someone. Alternatively, you can add the uuid of a player to the WhitelistedPlayers.yml as seen in the example in the file!");
-                } else {
-                    sender.sendMessage("§6Whitelisted players for maintenance:");
-                    players.forEach((key, value) -> sender.sendMessage("§8- §e" + value));
-                    sender.sendMessage("");
-                }
-            } else
-                sendUsage(sender);
-        } else if (args.length == 2) {
-            if (args[0].equalsIgnoreCase("endtimer")) {
-                if (!MessageUtil.isNumeric(args[1])) {
-                    sender.sendMessage(plugin.getPrefix() + "§6/maintenance timer endtimer <minutes>");
-                    return true;
-                }
-                if (plugin.isTaskRunning()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThere's already a starttimer scheduled!");
-                    return true;
-                }
-
-                final int minutes = Integer.parseInt(args[1]);
-                if (minutes > 40320) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThe number has to be less than 40320 (28 days)!");
-                    return true;
-                }
-                if (minutes < 1) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThink about running a timer for a negative amount of minutes. Doesn't work §othat §r§cwell.");
-                    return true;
-                }
-
-                plugin.setMaintenance(true);
-                sender.sendMessage(plugin.getPrefix() + "§aStarted timer: §7Maintenance mode will be deactivated in §6" + minutes + " minutes§7.");
-                plugin.setTaskId(plugin.schedule(new MaintenanceRunnable(plugin, settings, minutes, false)));
-            } else if (args[0].equalsIgnoreCase("starttimer")) {
-                if (!MessageUtil.isNumeric(args[1])) {
-                    sender.sendMessage(plugin.getPrefix() + "§6/maintenance timer starttimer <minutes>");
-                    return true;
-                }
-                if (plugin.isTaskRunning()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThere's already running a timer!");
-                    return true;
-                }
-
-                final int minutes = Integer.parseInt(args[1]);
-                if (minutes > 40320) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThe number has to be less than 40320 (28 days)!");
-                    return true;
-                }
-                if (minutes < 1) {
-                    sender.sendMessage(plugin.getPrefix() + "§cThink about running a timer for a negative amount of minutes. Doesn't work §othat §r§cwell.");
-                    return true;
-                }
-
-                sender.sendMessage(plugin.getPrefix() + "§aStarted timer: §7Maintenance mode will be activated in §6" + minutes + " minutes§7.");
-                plugin.setTaskId(plugin.schedule(new MaintenanceRunnable(plugin, settings, minutes, true)));
-            } else if (args[0].equalsIgnoreCase("timer")) {
-                if (args[1].equalsIgnoreCase("abort") || args[1].equalsIgnoreCase("stop") || args[1].equalsIgnoreCase("cancel")) {
-                    if (!plugin.isTaskRunning()) {
-                        sender.sendMessage(plugin.getPrefix() + "§cThere's currently no running timer.");
-                        return true;
-                    }
-
-                    plugin.cancelTask();
-                    sender.sendMessage(plugin.getPrefix() + "§cThe timer has been disabled.");
-                } else
-                    sendUsage(sender);
-            } else if (args[0].equalsIgnoreCase("add")) {
-                final Player player = Bukkit.getPlayer(args[1]);
-                if (player != null) {
-                    settings.addWhitelistedPlayer(player.getUniqueId(), player.getName());
-                    sender.sendMessage(plugin.getPrefix() + "§aAdded §b" + player.getName() + " §ato the maintenance whitelist!");
-                    return true;
-                }
-
-                final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(args[1]);
-                if (!offlinePlayer.hasPlayedBefore()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cNo player with this name has played on this server before.");
-                    return true;
-                }
-
-                if (settings.addWhitelistedPlayer(offlinePlayer.getUniqueId(), offlinePlayer.getName()))
-                    sender.sendMessage(plugin.getPrefix() + "§aAdded §b" + offlinePlayer.getName() + " §ato the maintenance whitelist!");
-                else
-                    sender.sendMessage(plugin.getPrefix() + "§b" + player.getName() + " §calready is in the maintenance whitelist!");
-            } else if (args[0].equalsIgnoreCase("remove")) {
-                final Player player = Bukkit.getPlayer(args[1]);
-                if (player != null) {
-                    settings.removeWhitelistedPlayer(player.getUniqueId());
-                    sender.sendMessage(plugin.getPrefix() + "§aRemoved §b" + player.getName() + " §afrom the maintenance whitelist!");
-                    return true;
-                }
-
-                final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(args[1]);
-                if (!offlinePlayer.hasPlayedBefore()) {
-                    sender.sendMessage(plugin.getPrefix() + "§cNo player with this name has played on this server before.");
-                    return true;
-                }
-
-                if (settings.removeWhitelistedPlayer(offlinePlayer.getUniqueId()))
-                    sender.sendMessage(plugin.getPrefix() + "§aRemoved §b" + offlinePlayer.getName() + " §afrom the maintenance whitelist!");
-                else
-                    sender.sendMessage(plugin.getPrefix() + "§cThis player is not in the maintenance whitelist!");
-            } else
-                sendUsage(sender);
-        } else
-            sendUsage(sender);
-
-        return true;
-    }
-
-    private void sendUsage(final CommandSender sender) {
-        sender.sendMessage("");
-        sender.sendMessage("§8===========[ §eMaintenanceSpigot §8| §eVersion: §e" + plugin.getVersion() + " §8]===========");
-        sender.sendMessage("§6/maintenance reload §7(Reloads the config file)");
-        sender.sendMessage("§6/maintenance on §7(Enables maintenance mode");
-        sender.sendMessage("§6/maintenance off §7(Disables maintenance mode)");
-        sender.sendMessage("§6/maintenance starttimer <minutes> §7(After the given time in minutes, maintenance mode will be enabled. Broadcast settings for the timer can be found in the config)");
-        sender.sendMessage("§6/maintenance endtimer <minutes> §7(Enables maintenance mode. After the given time in minutes, maintenance mode will be disabled)");
-        sender.sendMessage("§6/maintenance timer abort §7(If running, the current timer will be aborted)");
-        sender.sendMessage("§6/maintenance add <player> §7(Adds the player to the maintenance whitelist, so they can join the server even though maintenance is enabled)");
-        sender.sendMessage("§6/maintenance remove <player> §7(Removes the player from the maintenance whitelist)");
-        sender.sendMessage("§6/maintenance whitelist §7(Shows all whitelisted players for the maintenance mode)");
-        sender.sendMessage("§6/maintenance update §7(Remotely downloads the newest version of the plugin onto your server)");
-        sender.sendMessage("§9Created by: KennyTV");
-        sender.sendMessage("§8===========[ §eMaintenanceSpigot §8| §eVersion: §e" + plugin.getVersion() + " §8]===========");
-        sender.sendMessage("");
-    }
-
-    private void checkForUpdate(final CommandSender sender) {
-        if (plugin.updateAvailable()) {
-            sender.sendMessage(plugin.getPrefix() + "§cNewest version available: §aVersion " + plugin.getNewestVersion() + "§c, you're still on §a" + plugin.getVersion());
-            sender.sendMessage(plugin.getPrefix() + "§c§lWARNING: §cYou will have to restart the server to prevent further issues and to complete the update!" +
-                    " If you can't do that, don't update!");
-            sender.sendMessage(plugin.getPrefix() + "§eUse §c§l/maintenance forceupdate §eto update!");
-        } else
-            sender.sendMessage(plugin.getPrefix() + "§aYou already have the latest version of the plugin!");
-    }
-}

MaintenanceSpigot/src/main/java/eu/kennytv/maintenance/spigot/listener/PacketListener.java

@@ -1,56 +0,0 @@
-package eu.kennytv.maintenance.spigot.listener;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.events.ListenerPriority;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.wrappers.WrappedGameProfile;
-import com.comphenix.protocol.wrappers.WrappedServerPing;
-import com.google.common.collect.Lists;
-import eu.kennytv.maintenance.spigot.MaintenanceSpigotBase;
-import eu.kennytv.maintenance.spigot.MaintenanceSpigotPlugin;
-import eu.kennytv.maintenance.spigot.SettingsSpigot;
-
-import javax.imageio.ImageIO;
-import java.io.File;
-import java.util.List;
-import java.util.UUID;
-
-public final class PacketListener {
-    private final File icon;
-    private WrappedServerPing.CompressedImage image;
-
-    public PacketListener(final MaintenanceSpigotPlugin pl, final MaintenanceSpigotBase base, final SettingsSpigot settings) {
-        icon = new File("maintenance-icon.png");
-        ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(base, ListenerPriority.HIGHEST,
-                PacketType.Status.Server.OUT_SERVER_INFO) {
-            @Override
-            public void onPacketSending(final PacketEvent event) {
-                if (!pl.isMaintenance()) return;
-
-                final WrappedServerPing ping = event.getPacket().getServerPings().read(0);
-                ping.setVersionProtocol(0);
-                ping.setMotD(settings.getPingMessage().replace("%NEWLINE%", "\n"));
-                ping.setVersionName(settings.getPlayerCountMessage());
-
-                final List<WrappedGameProfile> players = Lists.newArrayList();
-                for (final String string : settings.getPlayerCountHoverMessage().split("%NEWLINE%"))
-                    players.add(new WrappedGameProfile(UUID.randomUUID(), string));
-                ping.setPlayers(players);
-
-                if (settings.hasCustomIcon()) {
-                    if (image != null)
-                        ping.setFavicon(image);
-                    else {
-                        try {
-                            image = WrappedServerPing.CompressedImage.fromPng(ImageIO.read(icon));
-                        } catch (final Exception e) {
-                            pl.getServer().getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Spigot/Bukkit folder (not the plugins folder)?");
-                        }
-                    }
-                }
-            }
-        });
-    }
-}

README.md

@@ -12,5 +12,5 @@ Issues can be created here: https://github.com/KennyTV/Maintenance/issues
 
 ### MaintenanceMode API
 
-There's no official repo, yet, but you can manually add the Maintenance-API.jar file to your library (can be downloaded in the code section, https://github.com/KennyTV/Maintenance/raw/master/Maintenance-API.jar).
-By using MaintenanceBungeeAPI#getAPI or MaintenanceSpigotAPI#getAPI (depending on what server you are using the plugin) you can get some base methods. Documentation and/or a repo might come, if a few people ask me to.
+There's no official maven repo, yet, but you can manually add the Maintenance-API.jar file to your library (can be downloaded in the code section, https://github.com/KennyTV/Maintenance/raw/master/Maintenance-API.jar).
+By using MaintenanceBungeeAPI#getAPI or MaintenanceSpigotAPI#getAPI (depending on what server you are using the plugin) you can get some base methods. A rough documentation can be found here https://github.com/KennyTV/Maintenance/tree/master/Maintenance-API/src/main/java/eu/kennytv/maintenance/api

pom.xml

@@ -6,15 +6,15 @@
 
     <groupId>eu.kennytv</groupId>
     <artifactId>maintenance-base</artifactId>
-    <packaging>pom</packaging>
-    <version>2.2</version>
+    <version>2.4</version>
     <name>Maintenance</name>
+    <packaging>pom</packaging>
 
     <modules>
-        <module>maintenance</module>
+        <module>maintenance-parent</module>
         <module>maintenance-core</module>
-        <module>maintenancespigot</module>
-        <module>maintenancebungee</module>
+        <module>maintenance-spigot</module>
+        <module>maintenance-bungee</module>
         <module>maintenance-api</module>
     </modules>
 
@@ -31,13 +31,21 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.1.0</version>
+                <version>3.1.1</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
                         <goals>
                             <goal>shade</goal>
                         </goals>
+                        <configuration>
+                            <relocations>
+                                <relocation>
+                                    <pattern>com.zaxxer.hikari</pattern>
+                                    <shadedPattern>eu.kennytv.lib.hikari</shadedPattern>
+                                </relocation>
+                            </relocations>
+                        </configuration>
                     </execution>
                 </executions>
             </plugin>