Initial commit

.gitignore

@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

base/build.gradle

@@ -0,0 +1,24 @@
+plugins {
+    id 'java'
+}
+
+group = 'io.github.p2vman'
+version = '1.0'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation "com.google.code.gson:gson:2.8.9"
+}
+
+task createJar(type: Jar) {
+    archiveBaseName = 'base'
+    archiveVersion = 'marge'
+    from sourceSets.main.output
+}
+
+tasks.withType(JavaCompile).configureEach {
+    options.encoding = 'UTF-8'
+}

base/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'base'

base/src/main/java/io/github/p2vman/Identifier.java

@@ -0,0 +1,156 @@
+package io.github.p2vman;
+
+public class Identifier implements Comparable<Identifier> {
+    public static final char NAMESPACE_SEPARATOR = ':';
+    public static final String DEFAULT_NAMESPACE = "minecraft";
+    private final String namespace;
+    private final String path;
+    public Identifier(String namespace, String path) {
+        this.namespace = namespace;
+        this.path = path;
+    }
+    private Identifier(String[] id) {
+        this(id[0], id[1]);
+    }
+
+    public Identifier(String id) {
+        this(split(id, NAMESPACE_SEPARATOR));
+    }
+
+    public static Identifier splitOn(String id, char delimiter) {
+        return new Identifier(split(id, delimiter));
+    }
+
+    public static Identifier tryParse(String id) {
+        try {
+            return new Identifier(id);
+        } catch (RuntimeException var2) {
+            return null;
+        }
+    }
+
+    public static Identifier of(String namespace, String path) {
+        try {
+            return new Identifier(namespace, path);
+        } catch (RuntimeException var3) {
+            return null;
+        }
+    }
+
+    protected static String[] split(String id, char delimiter) {
+        String[] strings = new String[]{DEFAULT_NAMESPACE, id};
+        int i = id.indexOf(delimiter);
+        if (i >= 0) {
+            strings[1] = id.substring(i + 1);
+            if (i >= 1) {
+                strings[0] = id.substring(0, i);
+            }
+        }
+
+        return strings;
+    }
+
+    public String getPath() {
+        return this.path;
+    }
+
+    public String getNamespace() {
+        return this.namespace;
+    }
+
+    public String toString() {
+        return this.namespace + NAMESPACE_SEPARATOR + this.path;
+    }
+
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        } else if (!(o instanceof Identifier)) {
+            return false;
+        } else {
+            Identifier identifier = (Identifier)o;
+            return this.namespace.equals(identifier.namespace) && this.path.equals(identifier.path);
+        }
+    }
+
+    public int hashCode() {
+        return 31 * this.namespace.hashCode() + this.path.hashCode();
+    }
+
+    public int compareTo(Identifier identifier) {
+        int i = this.path.compareTo(identifier.path);
+        if (i == 0) {
+            i = this.namespace.compareTo(identifier.namespace);
+        }
+
+        return i;
+    }
+
+    public String toUnderscoreSeparatedString() {
+        return this.toString().replace('/', '_').replace(NAMESPACE_SEPARATOR, '_');
+    }
+
+    public String toTranslationKey() {
+        return this.namespace + "." + this.path;
+    }
+
+    public String toShortTranslationKey() {
+        return this.namespace.equals(DEFAULT_NAMESPACE) ? this.path : this.toTranslationKey();
+    }
+
+    public String toTranslationKey(String prefix) {
+        return prefix + "." + this.toTranslationKey();
+    }
+
+    public String toTranslationKey(String prefix, String suffix) {
+        return prefix + "." + this.toTranslationKey() + "." + suffix;
+    }
+
+    public static boolean isCharValid(char c) {
+        return c >= '0' && c <= '9' || c >= 'a' && c <= 'z' || c == '_' || c == ':' || c == '/' || c == '.' || c == '-';
+    }
+
+    public static boolean isPathValid(String path) {
+        for(int i = 0; i < path.length(); ++i) {
+            if (!isPathCharacterValid(path.charAt(i))) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    public static boolean isNamespaceValid(String namespace) {
+        for(int i = 0; i < namespace.length(); ++i) {
+            if (!isNamespaceCharacterValid(namespace.charAt(i))) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    private static String validateNamespace(String namespace, String path) {
+        if (!isNamespaceValid(namespace)) {
+            throw new RuntimeException("Non [a-z0-9_.-] character in namespace of location: " + namespace + NAMESPACE_SEPARATOR + path);
+        } else {
+            return namespace;
+        }
+    }
+
+    public static boolean isPathCharacterValid(char character) {
+        return character == '_' || character == '-' || character >= 'a' && character <= 'z' || character >= '0' && character <= '9' || character == '/' || character == '.';
+    }
+
+    private static boolean isNamespaceCharacterValid(char character) {
+        return character == '_' || character == '-' || character >= 'a' && character <= 'z' || character >= '0' && character <= '9' || character == '.';
+    }
+
+    private static String validatePath(String namespace, String path) {
+        if (!isPathValid(path)) {
+            throw new RuntimeException("Non [a-z0-9/._-] character in path of location: " + namespace + NAMESPACE_SEPARATOR + path);
+        } else {
+            return path;
+        }
+    }
+}

base/src/main/java/io/github/p2vman/Static.java

@@ -0,0 +1,7 @@
+package io.github.p2vman;
+
+import com.google.gson.Gson;
+
+public class Static {
+    public static final Gson GSON = new Gson();
+}

base/src/main/java/io/github/p2vman/Utils.java

@@ -0,0 +1,14 @@
+package io.github.p2vman;
+
+import java.util.Map;
+
+public class Utils {
+    public static <T> boolean len(T[] t, int l) {
+        return t.length > l;
+    }
+
+    public static <K, V> Map<K, V> put(Map<K, V> map, K k, V v) {
+        map.put(k, v);
+        return map;
+    }
+}

base/src/main/java/io/github/p2vman/data/Codec.java

@@ -0,0 +1,17 @@
+package io.github.p2vman.data;
+
+public interface Codec<T, I, O> extends Encoder<O, T>, Decoder<T, I> {
+    static <T, I, O> Codec<T, I, O> of(final Encoder<O, T> encoder, final Decoder<T, I> decoder) {
+        return new Codec<T, I, O>() {
+            @Override
+            public T decode(I input) throws DecoderException {
+                return decoder.decode(input);
+            }
+
+            @Override
+            public void encode(O out, T obj) throws EncoderException {
+                encoder.encode(out, obj);
+            }
+        };
+    }
+}

base/src/main/java/io/github/p2vman/data/Decoder.java

@@ -0,0 +1,6 @@
+package io.github.p2vman.data;
+
+@FunctionalInterface
+public interface Decoder<R, I> {
+    R decode(I input) throws DecoderException;
+}

base/src/main/java/io/github/p2vman/data/DecoderException.java

@@ -0,0 +1,16 @@
+package io.github.p2vman.data;
+
+public class DecoderException extends Exception {
+    public DecoderException() {
+        super();
+    }
+    public DecoderException(final String message) {
+        super(message);
+    }
+    public DecoderException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+    public DecoderException(final Throwable cause) {
+        super(cause);
+    }
+}

base/src/main/java/io/github/p2vman/data/Encoder.java

@@ -0,0 +1,5 @@
+package io.github.p2vman.data;
+
+public interface Encoder<O, T> {
+    void encode(O out, T obj) throws EncoderException;
+}

base/src/main/java/io/github/p2vman/data/EncoderException.java

@@ -0,0 +1,19 @@
+package io.github.p2vman.data;
+
+public class EncoderException extends Exception {
+    public EncoderException() {
+        super();
+    }
+
+    public EncoderException(final String message) {
+        super(message);
+    }
+
+    public EncoderException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+    public EncoderException(final Throwable cause) {
+        super(cause);
+    }
+}

base/src/main/java/io/github/p2vman/profiling/ExempleProfiler.java

@@ -0,0 +1,53 @@
+package io.github.p2vman.profiling;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Stack;
+
+public class ExempleProfiler implements Profiler {
+    private final Map<String, Long> totalTimes = new HashMap<>();
+    private final Stack<String> stack = new Stack<>();
+    private final Map<String, Long> startTimes = new HashMap<>();
+
+    public void push(String name) {
+        stack.push(name);
+        startTimes.put(name, System.nanoTime());
+    }
+
+    public String pop() {
+        if (stack.isEmpty()) {
+            throw new IllegalStateException("Нет активных блоков для остановки.");
+        }
+        String name = stack.pop();
+        Long startTime = startTimes.remove(name);
+        if (startTime == null) {
+            throw new IllegalStateException("Блок " + name + " не был запущен.");
+        }
+        long elapsedTime = System.nanoTime() - startTime;
+        totalTimes.put(name, totalTimes.getOrDefault(name, 0L) + elapsedTime);
+        return name;
+    }
+
+    public String peek() {
+        if (stack.isEmpty()) {
+            throw new IllegalStateException("Нет активных блоков.");
+        }
+        return stack.peek();
+    }
+
+    public long getElapsedTimeAndRemove(String name) {
+        Long elapsedTime = totalTimes.remove(name);
+        if (elapsedTime == null) {
+            throw new IllegalStateException("Блок " + name + " не найден.");
+        }
+        return elapsedTime / 1_000_000;
+    }
+
+    public long getElapsedTime(String name) {
+        Long elapsedTime = totalTimes.get(name);
+        if (elapsedTime == null) {
+            throw new IllegalStateException("Блок " + name + " не найден.");
+        }
+        return elapsedTime / 1_000_000;
+    }
+}

base/src/main/java/io/github/p2vman/profiling/Profiler.java

@@ -0,0 +1,41 @@
+package io.github.p2vman.profiling;
+
+
+public interface Profiler {
+    /**
+     * Запускает отсчет времени для нового блока.
+     *
+     * @param name название блока кода
+     */
+    void push(String name);
+
+    /**
+     * Останавливает отсчет времени для последнего блока.
+     *
+     * @return название блока, который был остановлен
+     */
+    String pop();
+
+    /**
+     * Возвращает название текущего активного блока без остановки его выполнения.
+     *
+     * @return название текущего блока
+     */
+    String peek();
+
+    /**
+     * Получает общее время выполнения для указанного блока и удаляет запись.
+     *
+     * @param name название блока кода
+     * @return время в миллисекундах
+     */
+    long getElapsedTimeAndRemove(String name);
+
+    /**
+     * Получает общее время выполнения для указанного блока без удаления записи.
+     *
+     * @param name название блока кода
+     * @return время в миллисекундах
+     */
+    long getElapsedTime(String name);
+}

base/src/main/java/org/eptalist/Config.java

@@ -0,0 +1,90 @@
+package org.eptalist;
+
+import com.google.gson.annotations.SerializedName;
+import io.github.p2vman.Identifier;
+import io.github.p2vman.Static;
+import io.github.p2vman.Utils;
+
+import java.io.*;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Config {
+    public boolean enable = false;
+    public boolean skip_to_op = true;
+    public Identifier curent = new Identifier("whitelist", "base");
+    public Mode[] modes = new Mode[] {
+            new Mode(
+                    new Identifier(
+                            "whitelist",
+                            "base"),
+                    "org.eptalist.storge.Json",
+                    Utils.put(new HashMap<>(), "file", "eoptalist.json"),
+                    "&6Молодой человек а вас нету в списке &4:)"
+            ),
+            new Mode(
+                    new Identifier(
+                            "whitelist",
+                            "dev"),
+                    "org.eptalist.storge.Json",
+                    Utils.put(new HashMap<>(), "file", "eoptalist.dev.json"),
+                    "&2Сервер на тех работах"
+            )
+    };
+
+    public static class Mode {
+        public Identifier id;
+        public String storage;
+
+        public Map<String, Object> data;
+        @SerializedName("msg")
+        public String kick_msg;
+        public Mode(Identifier id, String storage, Map<String, Object> data, String kick_msg) {
+            this.id = id;
+            this.storage = storage;
+            this.data = data;
+            this.kick_msg = kick_msg;
+        }
+    }
+
+    public static class ConfigContainer {
+        private File config;
+        private Config cfg = null;
+        public ConfigContainer(File config) {
+            this.config = config;
+        }
+
+        public Config get() {
+            if (cfg == null) {
+                load();
+            }
+            return cfg;
+        }
+
+        public void load() {
+            try {
+                if (!config.exists()) {
+                    this.cfg = new Config();
+                    try (FileWriter writer =new FileWriter(this.config)) {
+                        Static.GSON.toJson(cfg, writer);
+                    }
+                }
+                else {
+                    try (FileReader reader = new FileReader(this.config)) {
+                        cfg = Static.GSON.fromJson(reader, Config.class);
+                    }
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+
+        public void save() {
+            try (FileWriter writer = new FileWriter(this.config)) {
+                Static.GSON.toJson(cfg, writer);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

base/src/main/java/org/eptalist/storge/Data.java

@@ -0,0 +1,14 @@
+package org.eptalist.storge;
+
+import java.io.Closeable;
+import java.util.List;
+
+public interface Data<T> extends Closeable {
+    boolean addUser(T name);
+    boolean removeUser(T name);
+    boolean is(T name);
+    List<T> toList();
+    boolean addUser(T name, List<String> info);
+    boolean removeUser(T name, List<String> info);
+    boolean is(T name, List<String> info);
+}

base/src/main/java/org/eptalist/storge/Json.java

@@ -0,0 +1,127 @@
+package org.eptalist.storge;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import io.github.p2vman.Static;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
+
+public class Json extends ArrayList<String> implements Data<String> {
+    @Override
+    public void close() throws IOException {
+        save();
+    }
+
+    @Override
+    public boolean addUser(String name) {
+        if (is(name)) {
+            return false;
+        }
+        return add(name);
+    }
+
+    @Override
+    public boolean is(String name) {
+        return contains(name);
+    }
+
+    @Override
+    public boolean removeUser(String name) {
+        if (!is(name)) {
+
+            return false;
+        }
+        return remove(name);
+    }
+
+    public Map<String, Object> data;
+
+    public Json(Map<String, Object> data) {
+        this.data = data;
+        if (!(size()>0)) {
+            load();
+        }
+    }
+
+    public void load() {
+        clear();
+        try {
+            JsonArray array = Static.GSON.fromJson(new InputStreamReader(new FileInputStream((String) this.data.get("file"))), JsonArray.class);
+            Iterator<JsonElement> iterator = array.iterator();
+            while (iterator.hasNext()) {
+                add(iterator.next().getAsString());
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            save();
+        }
+    }
+
+    public void save() {
+        try {
+            OutputStream stream = new FileOutputStream((String) this.data.get("file"));
+            stream.write(Static.GSON.toJson(this).getBytes(StandardCharsets.UTF_8));
+            stream.flush();
+            stream.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public boolean add(String s) {
+        if (super.add(s)) {
+            save();
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    @Override
+    public boolean remove(Object o) {
+        if (super.remove(o)) {
+            save();
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public void sort(Comparator<? super String> c) {
+        super.sort(c);
+        save();
+    }
+
+    @Override
+    public List<String> toList() {
+        return this;
+    }
+
+    @Override
+    public boolean is(String name, List<String> info) {
+        return contains(name);
+    }
+
+    @Override
+    public boolean removeUser(String name, List<String> info) {
+        if (!is(name)) {
+            info.add("&r" + name + "is not in the whitelist");
+            return false;
+        }
+        return remove(name);
+    }
+
+    @Override
+    public boolean addUser(String name, List<String> info) {
+        if (is(name)) {
+            info.add("&r" + name + "is already on the whitelist");
+            return false;
+        }
+        return add(name);
+    }
+}

base/src/main/java/org/eptalist/storge/Mysql.java

@@ -0,0 +1,155 @@
+package org.eptalist.storge;
+
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class Mysql implements Data<String> {
+    public Connection connection;
+    public Map<String, Object> data;
+    public Mysql(Map<String, Object> data) {
+        this.data = data;
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+            connection = DriverManager.getConnection((String) this.data.get("file"));
+            try (Statement statement = connection.createStatement()) {
+                statement.executeUpdate("CREATE TABLE IF NOT EXISTS users (username VARCHAR(255) PRIMARY KEY)");
+            }
+        } catch (SQLException | ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public boolean removeUser(String name) {
+        if (!is(name)) {
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("DELETE FROM users WHERE username = ?");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    @Override
+    public boolean removeUser(String name, List<String> info) {
+        if (!is(name)) {
+            info.add("&r" + name + "is not in the whitelist");
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("DELETE FROM users WHERE username = ?");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            info.add("&rThere was an error in the database");
+            return false;
+        }
+    }
+
+    @Override
+    public boolean is(String name, List<String> info) {
+        try {
+            if (connection.isClosed()) {
+                connection = DriverManager.getConnection(String.format((String) this.data.get("file")));
+                info.add("&6The database has been reconnected");
+            }
+            PreparedStatement statement = connection.prepareStatement("SELECT user_name FROM users WHERE username = ?");
+            statement.setString(1, name);
+            ResultSet resultSet = statement.executeQuery();
+            return resultSet.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            info.add("&rThere was an error in the database");
+            return false;
+        }
+    }
+
+    @Override
+    public boolean is(String name) {
+        try {
+            if (connection.isClosed()) {
+                connection = DriverManager.getConnection((String) this.data.get("file"));
+            }
+            PreparedStatement statement = connection.prepareStatement("SELECT username FROM users WHERE username = ?");
+            statement.setString(1, name);
+            ResultSet resultSet = statement.executeQuery();
+            return resultSet.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    @Override
+    public boolean addUser(String name, List<String> info) {
+        if (is(name)) {
+            info.add("&r" + name + "is already on the whitelist");
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("INSERT INTO users (username) VALUES (?)");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            info.add("&rThere was an error in the database");
+            return false;
+        }
+    }
+
+    @Override
+    public boolean addUser(String name) {
+        if (is(name)) {
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("INSERT INTO users (username) VALUES (?)");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public void close() {
+        try {
+            if (connection != null) {
+                if (!connection.isClosed()) {
+                    connection.close();
+                }
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public List<String> toList() {
+
+        List<String> players = new ArrayList<>();
+        try {
+            if (connection.isClosed()) {
+                connection = DriverManager.getConnection((String) this.data.get("file"));
+            }
+            String sql = "SELECT username FROM users";
+            Statement stmt = connection.createStatement();
+            ResultSet rs = stmt.executeQuery(sql);
+            while (rs.next()) {
+                players.add(rs.getString("username"));
+            }
+            rs.close();
+            stmt.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return players;
+    }
+}

base/src/main/java/org/eptalist/storge/Sqlite.java

@@ -0,0 +1,155 @@
+package org.eptalist.storge;
+
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class Sqlite implements Data<String> {
+
+    public Connection connection;
+    public Map<String, Object> data;
+    public Sqlite(Map<String, Object> data) {
+        this.data = data;
+        try {
+            connection = DriverManager.getConnection(String.format("jdbc:sqlite:%s.db", (String) this.data.get("file")));
+            try (Statement statement = connection.createStatement()) {
+                statement.executeUpdate("CREATE TABLE IF NOT EXISTS users (user_name VARCHAR(255) PRIMARY KEY)");
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public boolean removeUser(String name) {
+        if (!is(name)) {
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("DELETE FROM users WHERE user_name = ?");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    @Override
+    public boolean removeUser(String name, List<String> info) {
+        if (!is(name)) {
+            info.add("&r" + name + "is not in the whitelist");
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("DELETE FROM users WHERE user_name = ?");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            info.add("&rThere was an error in the database");
+            return false;
+        }
+    }
+
+    @Override
+    public boolean is(String name, List<String> info) {
+        try {
+            if (connection.isClosed()) {
+                connection = DriverManager.getConnection(String.format("jdbc:sqlite:%s.db", (String) this.data.get("file")));
+                info.add("&6The database has been reconnected");
+            }
+            PreparedStatement statement = connection.prepareStatement("SELECT user_name FROM users WHERE user_name = ?");
+            statement.setString(1, name);
+            ResultSet resultSet = statement.executeQuery();
+            return resultSet.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            info.add("&rThere was an error in the database");
+            return false;
+        }
+    }
+
+    @Override
+    public boolean is(String name) {
+        try {
+            if (connection.isClosed()) {
+                connection = DriverManager.getConnection(String.format("jdbc:sqlite:%s.db", (String) this.data.get("file")));
+            }
+            PreparedStatement statement = connection.prepareStatement("SELECT user_name FROM users WHERE user_name = ?");
+            statement.setString(1, name);
+            ResultSet resultSet = statement.executeQuery();
+            return resultSet.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    @Override
+    public boolean addUser(String name, List<String> info) {
+        if (is(name)) {
+            info.add("&r" + name + "is already on the whitelist");
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("INSERT INTO users (user_name) VALUES (?)");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            info.add("&rThere was an error in the database");
+            return false;
+        }
+    }
+
+    @Override
+    public boolean addUser(String name) {
+        if (is(name)) {
+            return false;
+        }
+        try {
+            PreparedStatement statement = connection.prepareStatement("INSERT INTO users (user_name) VALUES (?)");
+            statement.setString(1, name);
+            return statement.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public void close() {
+        try {
+            if (connection != null) {
+                if (!connection.isClosed()) {
+                    connection.close();
+                }
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public List<String> toList() {
+
+        List<String> players = new ArrayList<>();
+        try {
+            if (connection.isClosed()) {
+                connection = DriverManager.getConnection(String.format("jdbc:sqlite:%s.db", (String) this.data.get("file")));
+            }
+            String sql = "SELECT user_name FROM users";
+            Statement stmt = connection.createStatement();
+            ResultSet rs = stmt.executeQuery(sql);
+            while (rs.next()) {
+                players.add(rs.getString("name"));
+            }
+            rs.close();
+            stmt.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return players;
+    }
+}

build.gradle

@@ -0,0 +1,24 @@
+plugins {
+    id 'java'
+}
+
+allprojects {
+    repositories {
+        mavenCentral()
+    }
+}
+
+task mergeJars(type: Jar) {
+    archiveBaseName = 'EptaList'
+    archiveVersion = '1.1-release'
+
+    def jarPaths = [
+            "C:\\Users\\User\\IdeaProjects\\EptaListProject\\velocity\\build\\libs\\velocity-1.0.jar",
+            "C:\\Users\\User\\IdeaProjects\\EptaListProject\\spigot\\build\\libs\\spigot-1.0.jar",
+            "C:\\Users\\User\\IdeaProjects\\EptaListProject\\base\\build\\libs\\base-1.0.jar"
+    ]
+
+    from jarPaths.collect { zipTree(it) }
+
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
+}

gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'EptaListProject'
+include ':base', ':velocity', ':spigot'

spigot/build.gradle

@@ -0,0 +1,56 @@
+plugins {
+    id 'java'
+}
+
+group = 'org.eg4rerer'
+version = "1.0"
+
+repositories {
+    mavenCentral()
+    maven {
+        name = "spigotmc-repo"
+        url = "https://hub.spigotmc.org/nexus/content/repositories/snapshots/"
+    }
+    maven {
+        name = "sonatype"
+        url = "https://oss.sonatype.org/content/groups/public/"
+    }
+}
+
+dependencies {
+    compileOnly("org.spigotmc:spigot-api:1.18.2-R0.1-SNAPSHOT")
+    compileOnly project(':base')
+}
+
+def targetJavaVersion = 17
+java {
+    def javaVersion = JavaVersion.toVersion(targetJavaVersion)
+    sourceCompatibility = javaVersion
+    targetCompatibility = javaVersion
+    if (JavaVersion.current() < javaVersion) {
+        toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion)
+    }
+}
+
+tasks.withType(JavaCompile).configureEach {
+    options.encoding = 'UTF-8'
+
+    if (targetJavaVersion >= 10 || JavaVersion.current().isJava10Compatible()) {
+        options.release.set(targetJavaVersion)
+    }
+}
+
+processResources {
+    def props = [version: version]
+    inputs.properties props
+    filteringCharset 'UTF-8'
+    filesMatching('plugin.yml') {
+        expand props
+    }
+}
+
+task createJar(type: Jar) {
+    archiveBaseName = 'spigot'
+    archiveVersion = 'marge'
+    from sourceSets.main.output
+}

spigot/settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'spigot'
+include ':base'

spigot/src/main/java/org/eptalist/spigot/EptaList.java

@@ -0,0 +1,94 @@
+package org.eptalist.spigot;
+
+import com.google.gson.reflect.TypeToken;
+import io.github.p2vman.profiling.ExempleProfiler;
+import io.github.p2vman.profiling.Profiler;
+import org.eptalist.Config;
+import io.github.p2vman.Identifier;
+import org.eptalist.spigot.metrics.Metrics;
+import org.eptalist.storge.Data;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandMap;
+import org.bukkit.permissions.Permission;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.io.File;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public final class EptaList extends JavaPlugin {
+    private static Metrics metrics;
+    public static final Profiler profiler = new ExempleProfiler();
+    public static final Logger LOGGER = Logger.getLogger("EptaList");
+
+    public static Config.ConfigContainer config;
+    public static Data list;
+    public static Config.Mode mode;
+    public static List<Identifier> identifiers = new ArrayList<>();
+
+    public static void load() {
+        profiler.push("load");
+        config.load();
+        identifiers.clear();
+        for (Config.Mode mode1 : config.get().modes) {
+            identifiers.add(mode1.id);
+        }
+        {
+            Identifier id = config.get().curent;
+            for (Config.Mode mode1 : config.get().modes) if (mode1.id.equals(id)) {
+                mode = mode1;
+                break;
+            }
+        }
+        try {
+            list = (Data) Class.forName(mode.storage).getConstructor(Map.class).newInstance(mode.data);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        LOGGER.log(Level.INFO, String.format("Load Plugin Configuration %sms", profiler.getElapsedTimeAndRemove(profiler.pop())));
+    }
+
+    @Override
+    public void onEnable() {
+        profiler.push("init");
+        metrics = new Metrics(this, 24527);
+
+        File data = getDataFolder();
+        if (!data.exists()) {
+            data.mkdirs();
+        }
+        config = new Config.ConfigContainer(new File(data, "wh.json"));
+        load();
+
+        try {
+            Field commandMapField = Bukkit.getServer().getClass().getDeclaredField("commandMap");
+            commandMapField.setAccessible(true);
+            CommandMap map = (CommandMap)commandMapField.get(Bukkit.getServer());
+
+            Command command = new WhiteListCommand();
+
+            map.register("minecraft", command);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        
+        getServer().getPluginManager().registerEvents(new Event(), this);
+        metrics.addCustomChart(new Metrics.SimplePie("data_type", () -> mode.storage));
+        LOGGER.log(Level.INFO, String.format("Init Plugin %sms", profiler.getElapsedTimeAndRemove(profiler.pop())));
+    }
+
+    @Override
+    public void onDisable() {
+        try {
+            if (list != null) list.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

spigot/src/main/java/org/eptalist/spigot/Event.java

@@ -0,0 +1,24 @@
+package org.eptalist.spigot;
+
+import org.bukkit.ChatColor;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerLoginEvent;
+import org.eptalist.Config;
+
+public class Event implements Listener {
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onConnect(PlayerLoginEvent e) {
+        Player p = e.getPlayer();
+        if (p != null) {
+            Config config = EptaList.config.get();
+            if (config.enable) {
+                if (!((config.skip_to_op && p.isOp()) || EptaList.list.is(p.getName()))) {
+                    e.disallow(PlayerLoginEvent.Result.KICK_WHITELIST, ChatColor.translateAlternateColorCodes('&', EptaList.mode.kick_msg));
+                }
+            }
+        }
+    }
+}

spigot/src/main/java/org/eptalist/spigot/WhiteListCommand.java

@@ -0,0 +1,239 @@
+package org.eptalist.spigot;
+
+import com.google.common.collect.ImmutableList;
+import org.apache.commons.lang.Validate;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionDefault;
+import org.bukkit.util.StringUtil;
+import io.github.p2vman.Identifier;
+import io.github.p2vman.Utils;
+
+import java.util.*;
+import java.util.function.Function;
+
+public class WhiteListCommand extends Command {
+    private final String[] w1 = new String[] {
+            "off",
+            "on",
+            "add",
+            "remove",
+            "list",
+            "help",
+            "mode",
+            "kick_nolisted",
+            "reload"
+    };
+    private final Permission permission_enable;
+    private final Permission permission_add;
+    private final Permission permission_remove;
+    private final Permission permission_reload;
+    private final Permission permission_mode;
+    private final Permission permission_outher;
+    private final Permission permission_list;
+
+
+    public WhiteListCommand() {
+        super("eptalist");
+        Function<Permission, Permission> recal = (p) -> {
+            p.recalculatePermissibles();
+            return p;
+        };
+
+        permission_enable = recal.apply(new Permission("eptalist.enable", PermissionDefault.OP));
+        permission_add = recal.apply(new Permission("eptalist.add", PermissionDefault.OP));
+        permission_remove = recal.apply(new Permission("eptalist.remove", PermissionDefault.OP));
+        permission_reload = recal.apply(new Permission("eptalist.reload", PermissionDefault.OP));
+        permission_mode = recal.apply(new Permission("eptalist.mode", PermissionDefault.OP));
+        permission_list = recal.apply(new Permission("eptalist.list", PermissionDefault.OP));
+        permission_outher = recal.apply(new Permission("eptalist.outher", PermissionDefault.OP));
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
+        if (!(args.length > 0)) {
+            sender.sendMessage(String.format("/%s (%s)", getName(), String.join("/", w1)));
+            return false;
+        }
+        switch (args[0]) {
+            case "off": if (testPermission(sender, permission_enable)) {
+                EptaList.config.get().enable = false;
+                EptaList.config.save();
+                sender.sendMessage("Whitelist disabled.");
+            }
+                break;
+            case "on": if (testPermission(sender, permission_enable)) {
+                EptaList.config.get().enable = true;
+                EptaList.config.save();
+                sender.sendMessage("Whitelist enabled.");
+            }
+                break;
+            case "add": if (testPermission(sender, permission_add)) {
+                List<String> info = new ArrayList<>();
+                if (!Utils.len(args, 1)) {
+                    sender.sendMessage("Usage: /" + commandLabel + " add <username>");
+                } else if (EptaList.list.addUser(args[1], info)) {
+                    sender.sendMessage("User added to the whitelist: " + args[1]);
+                } else {
+                    for (String line : info) {
+                        sender.sendMessage(ChatColor.translateAlternateColorCodes('&', line));
+                    }
+                }
+            }
+                break;
+            case "remove": if (testPermission(sender, permission_remove)) {
+                List<String> info = new ArrayList<>();
+                if (!Utils.len(args, 1)) {
+                    sender.sendMessage("Usage: /" + commandLabel + " remove <username>");
+                } else if (EptaList.list.removeUser(args[1], info)) {
+                    sender.sendMessage("User removed from the whitelist: " + args[1]);
+                } else {
+                    for (String line : info) {
+                        sender.sendMessage(ChatColor.translateAlternateColorCodes('&', line));
+                    }
+                }
+            }
+                break;
+            case "list": if (testPermission(sender, permission_list)) {
+                sender.sendMessage("Whitelisted players: " + EptaList.list.toList().toString());
+            }
+                break;
+            case "mode": if (testPermission(sender, permission_mode)) {
+                if (!Utils.len(args, 1)) {
+                    sender.sendMessage("Usage: /" + commandLabel + " mode <ID>");
+                } else {
+                    Identifier id = Identifier.tryParse(args[1]);
+                    if (id != null && EptaList.identifiers.contains(id)) {
+                        EptaList.config.get().curent = id;
+                        EptaList.config.save();
+                        EptaList.load();
+                        sender.sendMessage("Mode set to: " + id);
+                    } else {
+                        sender.sendMessage("Invalid mode ID!");
+                    }
+                }
+            }
+                break;
+            case "kick_nolisted": if (testPermission(sender, permission_outher)) {
+                for (Player player : Bukkit.getServer().getOnlinePlayers()) {
+                    if (!EptaList.list.is(player.getName())) {
+                        player.kickPlayer(EptaList.mode.kick_msg);
+                    }
+                }
+                sender.sendMessage("Non-whitelisted players have been kicked.");
+            }
+                break;
+            case "help": {
+                sender.sendMessage(new String[]{
+                        String.format("1: /%s add <username> - Add user to whitelist", getName()),
+                        String.format("2: /%s remove <username> - Remove user from whitelist", getName()),
+                        String.format("3: /%s list - Display whitelisted players", getName()),
+                        String.format("4: /%s on - Enable whitelist", getName()),
+                        String.format("5: /%s off - Disable whitelist", getName()),
+                        String.format("6: /%s mode <ID> - Set list data mode", getName()),
+                        String.format("7: /%s kick_nolisted - Kick non-whitelisted players", getName()),
+                        String.format("8: /%s reload - Reload the whitelist configuration", getName()),
+                });
+            }
+                break;
+            case "reload": if (testPermission(sender, permission_reload)) {
+                try {
+                    EptaList.load();
+                    sender.sendMessage("Configuration reloaded successfully.");
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    sender.sendMessage("Failed to reload the configuration.");
+                }
+            }
+                break;
+        }
+        return true;
+    }
+
+
+
+    @Override
+    public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
+        Validate.notNull(sender, "Sender cannot be null");
+        Validate.notNull(args, "Arguments cannot be null");
+        Validate.notNull(alias, "Alias cannot be null");
+
+        if (args.length == 0) {
+            return ImmutableList.of();
+        } else if (args.length == 1) {
+            String lastWord = args[args.length - 1];
+            ArrayList<String> matchedPlayers = new ArrayList();
+            Iterator var7 = Arrays.stream(w1).iterator();
+            while(var7.hasNext()) {
+                String name = (String)var7.next();
+                if (StringUtil.startsWithIgnoreCase(name, lastWord)) {
+                    matchedPlayers.add(name);
+                }
+            }
+
+            Collections.sort(matchedPlayers, String.CASE_INSENSITIVE_ORDER);
+            return matchedPlayers;
+        } else if (args.length == 2) {
+            if (args[0].equalsIgnoreCase("add") || args[0].equalsIgnoreCase("remove")) {
+                String lastWord = args[args.length - 1];
+
+                Player senderPlayer = sender instanceof Player ? (Player) sender : null;
+
+                ArrayList<String> matchedPlayers = new ArrayList<String>();
+                for (Player player : sender.getServer().getOnlinePlayers()) {
+                    String name = player.getName();
+                    if ((senderPlayer == null || senderPlayer.canSee(player)) && StringUtil.startsWithIgnoreCase(name, lastWord)) {
+                        matchedPlayers.add(name);
+                    }
+                }
+
+                Collections.sort(matchedPlayers, String.CASE_INSENSITIVE_ORDER);
+                return matchedPlayers;
+            } else if (args[0].equalsIgnoreCase("mode")) {
+                String lastWord = args[args.length - 1];
+                ArrayList<String> matchedPlayers = new ArrayList();
+                Iterator var7 = EptaList.identifiers.iterator();
+                while(var7.hasNext()) {
+                    String name = var7.next().toString();
+                    if (StringUtil.startsWithIgnoreCase(name, lastWord)) {
+                        matchedPlayers.add(name);
+                    }
+                }
+
+                Collections.sort(matchedPlayers, String.CASE_INSENSITIVE_ORDER);
+                return matchedPlayers;
+            }
+        } else if (args.length == 3) {
+            if (args[0].equalsIgnoreCase("add") || args[0].equalsIgnoreCase("remove")) {
+                String lastWord = args[args.length - 1];
+                ArrayList<String> matchedPlayers = new ArrayList();
+                Iterator var7 = EptaList.identifiers.iterator();
+                while (var7.hasNext()) {
+                    String name = var7.next().toString();
+                    if (StringUtil.startsWithIgnoreCase(name, lastWord)) {
+                        matchedPlayers.add(name);
+                    }
+                }
+
+                Collections.sort(matchedPlayers, String.CASE_INSENSITIVE_ORDER);
+                return matchedPlayers;
+            }
+        }
+
+        return ImmutableList.of();
+    }
+
+    public boolean testPermission(CommandSender target, Permission permission) {
+        if (target.hasPermission(permission.getName())) {
+            return true;
+        } else {
+            target.sendMessage(ChatColor.RED + "You don't have permission to perform this command.");
+            return false;
+        }
+    }
+}

spigot/src/main/java/org/eptalist/spigot/metrics/Metrics.java

@@ -0,0 +1,891 @@
+package org.eptalist.spigot.metrics;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+import java.util.logging.Level;
+import java.util.stream.Collectors;
+import java.util.zip.GZIPOutputStream;
+import javax.net.ssl.HttpsURLConnection;
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
+public class Metrics {
+
+    private final Plugin plugin;
+
+    private final MetricsBase metricsBase;
+
+    /**
+     * Creates a new Metrics instance.
+     *
+     * @param plugin Your plugin instance.
+     * @param serviceId The id of the service. It can be found at <a
+     *     href="https://bstats.org/what-is-my-plugin-id">What is my plugin id?</a>
+     */
+    public Metrics(Plugin plugin, int serviceId) {
+        this.plugin = plugin;
+        // Get the config file
+        File bStatsFolder = new File(plugin.getDataFolder().getParentFile(), "bStats");
+        File configFile = new File(bStatsFolder, "config.yml");
+        YamlConfiguration config = YamlConfiguration.loadConfiguration(configFile);
+        if (!config.isSet("serverUuid")) {
+            config.addDefault("enabled", true);
+            config.addDefault("serverUuid", UUID.randomUUID().toString());
+            config.addDefault("logFailedRequests", false);
+            config.addDefault("logSentData", false);
+            config.addDefault("logResponseStatusText", false);
+            // Inform the server owners about bStats
+            config
+                    .options()
+                    .header(
+                            "bStats (https://bStats.org) collects some basic information for plugin authors, like how\n"
+                                    + "many people use their plugin and their total player count. It's recommended to keep bStats\n"
+                                    + "enabled, but if you're not comfortable with this, you can turn this setting off. There is no\n"
+                                    + "performance penalty associated with having metrics enabled, and data sent to bStats is fully\n"
+                                    + "anonymous.")
+                    .copyDefaults(true);
+            try {
+                config.save(configFile);
+            } catch (IOException ignored) {
+            }
+        }
+        // Load the data
+        boolean enabled = config.getBoolean("enabled", true);
+        String serverUUID = config.getString("serverUuid");
+        boolean logErrors = config.getBoolean("logFailedRequests", false);
+        boolean logSentData = config.getBoolean("logSentData", false);
+        boolean logResponseStatusText = config.getBoolean("logResponseStatusText", false);
+        boolean isFolia = false;
+        try {
+            isFolia = Class.forName("io.papermc.paper.threadedregions.RegionizedServer") != null;
+        } catch (Exception e) {
+        }
+        metricsBase =
+                new // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        // See https://github.com/Bastian/bstats-metrics/pull/126
+                        MetricsBase(
+                        "bukkit",
+                        serverUUID,
+                        serviceId,
+                        enabled,
+                        this::appendPlatformData,
+                        this::appendServiceData,
+                        isFolia
+                                ? null
+                                : submitDataTask -> Bukkit.getScheduler().runTask(plugin, submitDataTask),
+                        plugin::isEnabled,
+                        (message, error) -> this.plugin.getLogger().log(Level.WARNING, message, error),
+                        (message) -> this.plugin.getLogger().log(Level.INFO, message),
+                        logErrors,
+                        logSentData,
+                        logResponseStatusText,
+                        false);
+    }
+
+    /** Shuts down the underlying scheduler service. */
+    public void shutdown() {
+        metricsBase.shutdown();
+    }
+
+    /**
+     * Adds a custom chart.
+     *
+     * @param chart The chart to add.
+     */
+    public void addCustomChart(CustomChart chart) {
+        metricsBase.addCustomChart(chart);
+    }
+
+    private void appendPlatformData(JsonObjectBuilder builder) {
+        builder.appendField("playerAmount", getPlayerAmount());
+        builder.appendField("onlineMode", Bukkit.getOnlineMode() ? 1 : 0);
+        builder.appendField("bukkitVersion", Bukkit.getVersion());
+        builder.appendField("bukkitName", Bukkit.getName());
+        builder.appendField("javaVersion", System.getProperty("java.version"));
+        builder.appendField("osName", System.getProperty("os.name"));
+        builder.appendField("osArch", System.getProperty("os.arch"));
+        builder.appendField("osVersion", System.getProperty("os.version"));
+        builder.appendField("coreCount", Runtime.getRuntime().availableProcessors());
+    }
+
+    private void appendServiceData(JsonObjectBuilder builder) {
+        builder.appendField("pluginVersion", plugin.getDescription().getVersion());
+    }
+
+    private int getPlayerAmount() {
+        try {
+            // Around MC 1.8 the return type was changed from an array to a collection,
+            // This fixes java.lang.NoSuchMethodError:
+            // org.bukkit.Bukkit.getOnlinePlayers()Ljava/util/Collection;
+            Method onlinePlayersMethod = Class.forName("org.bukkit.Server").getMethod("getOnlinePlayers");
+            return onlinePlayersMethod.getReturnType().equals(Collection.class)
+                    ? ((Collection<?>) onlinePlayersMethod.invoke(Bukkit.getServer())).size()
+                    : ((Player[]) onlinePlayersMethod.invoke(Bukkit.getServer())).length;
+        } catch (Exception e) {
+            // Just use the new method if the reflection failed
+            return Bukkit.getOnlinePlayers().size();
+        }
+    }
+
+    public static class MetricsBase {
+
+        /** The version of the Metrics class. */
+        public static final String METRICS_VERSION = "3.1.0";
+
+        private static final String REPORT_URL = "https://bStats.org/api/v2/data/%s";
+
+        private final ScheduledExecutorService scheduler;
+
+        private final String platform;
+
+        private final String serverUuid;
+
+        private final int serviceId;
+
+        private final Consumer<JsonObjectBuilder> appendPlatformDataConsumer;
+
+        private final Consumer<JsonObjectBuilder> appendServiceDataConsumer;
+
+        private final Consumer<Runnable> submitTaskConsumer;
+
+        private final Supplier<Boolean> checkServiceEnabledSupplier;
+
+        private final BiConsumer<String, Throwable> errorLogger;
+
+        private final Consumer<String> infoLogger;
+
+        private final boolean logErrors;
+
+        private final boolean logSentData;
+
+        private final boolean logResponseStatusText;
+
+        private final Set<CustomChart> customCharts = new HashSet<>();
+
+        private final boolean enabled;
+
+        /**
+         * Creates a new MetricsBase class instance.
+         *
+         * @param platform The platform of the service.
+         * @param serviceId The id of the service.
+         * @param serverUuid The server uuid.
+         * @param enabled Whether or not data sending is enabled.
+         * @param appendPlatformDataConsumer A consumer that receives a {@code JsonObjectBuilder} and
+         *     appends all platform-specific data.
+         * @param appendServiceDataConsumer A consumer that receives a {@code JsonObjectBuilder} and
+         *     appends all service-specific data.
+         * @param submitTaskConsumer A consumer that takes a runnable with the submit task. This can be
+         *     used to delegate the data collection to a another thread to prevent errors caused by
+         *     concurrency. Can be {@code null}.
+         * @param checkServiceEnabledSupplier A supplier to check if the service is still enabled.
+         * @param errorLogger A consumer that accepts log message and an error.
+         * @param infoLogger A consumer that accepts info log messages.
+         * @param logErrors Whether or not errors should be logged.
+         * @param logSentData Whether or not the sent data should be logged.
+         * @param logResponseStatusText Whether or not the response status text should be logged.
+         * @param skipRelocateCheck Whether or not the relocate check should be skipped.
+         */
+        public MetricsBase(
+                String platform,
+                String serverUuid,
+                int serviceId,
+                boolean enabled,
+                Consumer<JsonObjectBuilder> appendPlatformDataConsumer,
+                Consumer<JsonObjectBuilder> appendServiceDataConsumer,
+                Consumer<Runnable> submitTaskConsumer,
+                Supplier<Boolean> checkServiceEnabledSupplier,
+                BiConsumer<String, Throwable> errorLogger,
+                Consumer<String> infoLogger,
+                boolean logErrors,
+                boolean logSentData,
+                boolean logResponseStatusText,
+                boolean skipRelocateCheck) {
+            ScheduledThreadPoolExecutor scheduler =
+                    new ScheduledThreadPoolExecutor(
+                            1,
+                            task -> {
+                                Thread thread = new Thread(task, "bStats-Metrics");
+                                thread.setDaemon(true);
+                                return thread;
+                            });
+            // We want delayed tasks (non-periodic) that will execute in the future to be
+            // cancelled when the scheduler is shutdown.
+            // Otherwise, we risk preventing the server from shutting down even when
+            // MetricsBase#shutdown() is called
+            scheduler.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
+            this.scheduler = scheduler;
+            this.platform = platform;
+            this.serverUuid = serverUuid;
+            this.serviceId = serviceId;
+            this.enabled = enabled;
+            this.appendPlatformDataConsumer = appendPlatformDataConsumer;
+            this.appendServiceDataConsumer = appendServiceDataConsumer;
+            this.submitTaskConsumer = submitTaskConsumer;
+            this.checkServiceEnabledSupplier = checkServiceEnabledSupplier;
+            this.errorLogger = errorLogger;
+            this.infoLogger = infoLogger;
+            this.logErrors = logErrors;
+            this.logSentData = logSentData;
+            this.logResponseStatusText = logResponseStatusText;
+            if (!skipRelocateCheck) {
+                checkRelocation();
+            }
+            if (enabled) {
+                // WARNING: Removing the option to opt-out will get your plugin banned from
+                // bStats
+                startSubmitting();
+            }
+        }
+
+        public void addCustomChart(CustomChart chart) {
+            this.customCharts.add(chart);
+        }
+
+        public void shutdown() {
+            scheduler.shutdown();
+        }
+
+        private void startSubmitting() {
+            final Runnable submitTask =
+                    () -> {
+                        if (!enabled || !checkServiceEnabledSupplier.get()) {
+                            // Submitting data or service is disabled
+                            scheduler.shutdown();
+                            return;
+                        }
+                        if (submitTaskConsumer != null) {
+                            submitTaskConsumer.accept(this::submitData);
+                        } else {
+                            this.submitData();
+                        }
+                    };
+            // Many servers tend to restart at a fixed time at xx:00 which causes an uneven
+            // distribution of requests on the
+            // bStats backend. To circumvent this problem, we introduce some randomness into
+            // the initial and second delay.
+            // WARNING: You must not modify and part of this Metrics class, including the
+            // submit delay or frequency!
+            // WARNING: Modifying this code will get your plugin banned on bStats. Just
+            // don't do it!
+            long initialDelay = (long) (1000 * 60 * (3 + Math.random() * 3));
+            long secondDelay = (long) (1000 * 60 * (Math.random() * 30));
+            scheduler.schedule(submitTask, initialDelay, TimeUnit.MILLISECONDS);
+            scheduler.scheduleAtFixedRate(
+                    submitTask, initialDelay + secondDelay, 1000 * 60 * 30, TimeUnit.MILLISECONDS);
+        }
+
+        private void submitData() {
+            final JsonObjectBuilder baseJsonBuilder = new JsonObjectBuilder();
+            appendPlatformDataConsumer.accept(baseJsonBuilder);
+            final JsonObjectBuilder serviceJsonBuilder = new JsonObjectBuilder();
+            appendServiceDataConsumer.accept(serviceJsonBuilder);
+            JsonObjectBuilder.JsonObject[] chartData =
+                    customCharts.stream()
+                            .map(customChart -> customChart.getRequestJsonObject(errorLogger, logErrors))
+                            .filter(Objects::nonNull)
+                            .toArray(JsonObjectBuilder.JsonObject[]::new);
+            serviceJsonBuilder.appendField("id", serviceId);
+            serviceJsonBuilder.appendField("customCharts", chartData);
+            baseJsonBuilder.appendField("service", serviceJsonBuilder.build());
+            baseJsonBuilder.appendField("serverUUID", serverUuid);
+            baseJsonBuilder.appendField("metricsVersion", METRICS_VERSION);
+            JsonObjectBuilder.JsonObject data = baseJsonBuilder.build();
+            scheduler.execute(
+                    () -> {
+                        try {
+                            // Send the data
+                            sendData(data);
+                        } catch (Exception e) {
+                            // Something went wrong! :(
+                            if (logErrors) {
+                                errorLogger.accept("Could not submit bStats metrics data", e);
+                            }
+                        }
+                    });
+        }
+
+        private void sendData(JsonObjectBuilder.JsonObject data) throws Exception {
+            if (logSentData) {
+                infoLogger.accept("Sent bStats metrics data: " + data.toString());
+            }
+            String url = String.format(REPORT_URL, platform);
+            HttpsURLConnection connection = (HttpsURLConnection) new URL(url).openConnection();
+            // Compress the data to save bandwidth
+            byte[] compressedData = compress(data.toString());
+            connection.setRequestMethod("POST");
+            connection.addRequestProperty("Accept", "application/json");
+            connection.addRequestProperty("Connection", "close");
+            connection.addRequestProperty("Content-Encoding", "gzip");
+            connection.addRequestProperty("Content-Length", String.valueOf(compressedData.length));
+            connection.setRequestProperty("Content-Type", "application/json");
+            connection.setRequestProperty("User-Agent", "Metrics-Service/1");
+            connection.setDoOutput(true);
+            try (DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream())) {
+                outputStream.write(compressedData);
+            }
+            StringBuilder builder = new StringBuilder();
+            try (BufferedReader bufferedReader =
+                         new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
+                String line;
+                while ((line = bufferedReader.readLine()) != null) {
+                    builder.append(line);
+                }
+            }
+            if (logResponseStatusText) {
+                infoLogger.accept("Sent data to bStats and received response: " + builder);
+            }
+        }
+
+        /** Checks that the class was properly relocated. */
+        private void checkRelocation() {
+            // You can use the property to disable the check in your test environment
+            if (System.getProperty("bstats.relocatecheck") == null
+                    || !System.getProperty("bstats.relocatecheck").equals("false")) {
+                // Maven's Relocate is clever and changes strings, too. So we have to use this
+                // little "trick" ... :D
+                final String defaultPackage =
+                        new String(new byte[] {'o', 'r', 'g', '.', 'b', 's', 't', 'a', 't', 's'});
+                final String examplePackage =
+                        new String(new byte[] {'y', 'o', 'u', 'r', '.', 'p', 'a', 'c', 'k', 'a', 'g', 'e'});
+                // We want to make sure no one just copy & pastes the example and uses the wrong
+                // package names
+                if (MetricsBase.class.getPackage().getName().startsWith(defaultPackage)
+                        || MetricsBase.class.getPackage().getName().startsWith(examplePackage)) {
+                    throw new IllegalStateException("bStats Metrics class has not been relocated correctly!");
+                }
+            }
+        }
+
+        /**
+         * Gzips the given string.
+         *
+         * @param str The string to gzip.
+         * @return The gzipped string.
+         */
+        private static byte[] compress(final String str) throws IOException {
+            if (str == null) {
+                return null;
+            }
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            try (GZIPOutputStream gzip = new GZIPOutputStream(outputStream)) {
+                gzip.write(str.getBytes(StandardCharsets.UTF_8));
+            }
+            return outputStream.toByteArray();
+        }
+    }
+
+    public static class AdvancedBarChart extends CustomChart {
+
+        private final Callable<Map<String, int[]>> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public AdvancedBarChart(String chartId, Callable<Map<String, int[]>> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+            Map<String, int[]> map = callable.call();
+            if (map == null || map.isEmpty()) {
+                // Null = skip the chart
+                return null;
+            }
+            boolean allSkipped = true;
+            for (Map.Entry<String, int[]> entry : map.entrySet()) {
+                if (entry.getValue().length == 0) {
+                    // Skip this invalid
+                    continue;
+                }
+                allSkipped = false;
+                valuesBuilder.appendField(entry.getKey(), entry.getValue());
+            }
+            if (allSkipped) {
+                // Null = skip the chart
+                return null;
+            }
+            return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+        }
+    }
+
+    public static class SimplePie extends CustomChart {
+
+        private final Callable<String> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public SimplePie(String chartId, Callable<String> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            String value = callable.call();
+            if (value == null || value.isEmpty()) {
+                // Null = skip the chart
+                return null;
+            }
+            return new JsonObjectBuilder().appendField("value", value).build();
+        }
+    }
+
+    public static class DrilldownPie extends CustomChart {
+
+        private final Callable<Map<String, Map<String, Integer>>> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public DrilldownPie(String chartId, Callable<Map<String, Map<String, Integer>>> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        public JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+            Map<String, Map<String, Integer>> map = callable.call();
+            if (map == null || map.isEmpty()) {
+                // Null = skip the chart
+                return null;
+            }
+            boolean reallyAllSkipped = true;
+            for (Map.Entry<String, Map<String, Integer>> entryValues : map.entrySet()) {
+                JsonObjectBuilder valueBuilder = new JsonObjectBuilder();
+                boolean allSkipped = true;
+                for (Map.Entry<String, Integer> valueEntry : map.get(entryValues.getKey()).entrySet()) {
+                    valueBuilder.appendField(valueEntry.getKey(), valueEntry.getValue());
+                    allSkipped = false;
+                }
+                if (!allSkipped) {
+                    reallyAllSkipped = false;
+                    valuesBuilder.appendField(entryValues.getKey(), valueBuilder.build());
+                }
+            }
+            if (reallyAllSkipped) {
+                // Null = skip the chart
+                return null;
+            }
+            return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+        }
+    }
+
+    public static class SingleLineChart extends CustomChart {
+
+        private final Callable<Integer> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public SingleLineChart(String chartId, Callable<Integer> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            int value = callable.call();
+            if (value == 0) {
+                // Null = skip the chart
+                return null;
+            }
+            return new JsonObjectBuilder().appendField("value", value).build();
+        }
+    }
+
+    public static class MultiLineChart extends CustomChart {
+
+        private final Callable<Map<String, Integer>> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public MultiLineChart(String chartId, Callable<Map<String, Integer>> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+            Map<String, Integer> map = callable.call();
+            if (map == null || map.isEmpty()) {
+                // Null = skip the chart
+                return null;
+            }
+            boolean allSkipped = true;
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                if (entry.getValue() == 0) {
+                    // Skip this invalid
+                    continue;
+                }
+                allSkipped = false;
+                valuesBuilder.appendField(entry.getKey(), entry.getValue());
+            }
+            if (allSkipped) {
+                // Null = skip the chart
+                return null;
+            }
+            return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+        }
+    }
+
+    public static class AdvancedPie extends CustomChart {
+
+        private final Callable<Map<String, Integer>> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public AdvancedPie(String chartId, Callable<Map<String, Integer>> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+            Map<String, Integer> map = callable.call();
+            if (map == null || map.isEmpty()) {
+                // Null = skip the chart
+                return null;
+            }
+            boolean allSkipped = true;
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                if (entry.getValue() == 0) {
+                    // Skip this invalid
+                    continue;
+                }
+                allSkipped = false;
+                valuesBuilder.appendField(entry.getKey(), entry.getValue());
+            }
+            if (allSkipped) {
+                // Null = skip the chart
+                return null;
+            }
+            return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+        }
+    }
+
+    public abstract static class CustomChart {
+
+        private final String chartId;
+
+        protected CustomChart(String chartId) {
+            if (chartId == null) {
+                throw new IllegalArgumentException("chartId must not be null");
+            }
+            this.chartId = chartId;
+        }
+
+        public JsonObjectBuilder.JsonObject getRequestJsonObject(
+                BiConsumer<String, Throwable> errorLogger, boolean logErrors) {
+            JsonObjectBuilder builder = new JsonObjectBuilder();
+            builder.appendField("chartId", chartId);
+            try {
+                JsonObjectBuilder.JsonObject data = getChartData();
+                if (data == null) {
+                    // If the data is null we don't send the chart.
+                    return null;
+                }
+                builder.appendField("data", data);
+            } catch (Throwable t) {
+                if (logErrors) {
+                    errorLogger.accept("Failed to get data for custom chart with id " + chartId, t);
+                }
+                return null;
+            }
+            return builder.build();
+        }
+
+        protected abstract JsonObjectBuilder.JsonObject getChartData() throws Exception;
+    }
+
+    public static class SimpleBarChart extends CustomChart {
+
+        private final Callable<Map<String, Integer>> callable;
+
+        /**
+         * Class constructor.
+         *
+         * @param chartId The id of the chart.
+         * @param callable The callable which is used to request the chart data.
+         */
+        public SimpleBarChart(String chartId, Callable<Map<String, Integer>> callable) {
+            super(chartId);
+            this.callable = callable;
+        }
+
+        @Override
+        protected JsonObjectBuilder.JsonObject getChartData() throws Exception {
+            JsonObjectBuilder valuesBuilder = new JsonObjectBuilder();
+            Map<String, Integer> map = callable.call();
+            if (map == null || map.isEmpty()) {
+                // Null = skip the chart
+                return null;
+            }
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                valuesBuilder.appendField(entry.getKey(), new int[] {entry.getValue()});
+            }
+            return new JsonObjectBuilder().appendField("values", valuesBuilder.build()).build();
+        }
+    }
+
+    /**
+     * An extremely simple JSON builder.
+     *
+     * <p>While this class is neither feature-rich nor the most performant one, it's sufficient enough
+     * for its use-case.
+     */
+    public static class JsonObjectBuilder {
+
+        private StringBuilder builder = new StringBuilder();
+
+        private boolean hasAtLeastOneField = false;
+
+        public JsonObjectBuilder() {
+            builder.append("{");
+        }
+
+        /**
+         * Appends a null field to the JSON.
+         *
+         * @param key The key of the field.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendNull(String key) {
+            appendFieldUnescaped(key, "null");
+            return this;
+        }
+
+        /**
+         * Appends a string field to the JSON.
+         *
+         * @param key The key of the field.
+         * @param value The value of the field.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendField(String key, String value) {
+            if (value == null) {
+                throw new IllegalArgumentException("JSON value must not be null");
+            }
+            appendFieldUnescaped(key, "\"" + escape(value) + "\"");
+            return this;
+        }
+
+        /**
+         * Appends an integer field to the JSON.
+         *
+         * @param key The key of the field.
+         * @param value The value of the field.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendField(String key, int value) {
+            appendFieldUnescaped(key, String.valueOf(value));
+            return this;
+        }
+
+        /**
+         * Appends an object to the JSON.
+         *
+         * @param key The key of the field.
+         * @param object The object.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendField(String key, JsonObject object) {
+            if (object == null) {
+                throw new IllegalArgumentException("JSON object must not be null");
+            }
+            appendFieldUnescaped(key, object.toString());
+            return this;
+        }
+
+        /**
+         * Appends a string array to the JSON.
+         *
+         * @param key The key of the field.
+         * @param values The string array.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendField(String key, String[] values) {
+            if (values == null) {
+                throw new IllegalArgumentException("JSON values must not be null");
+            }
+            String escapedValues =
+                    Arrays.stream(values)
+                            .map(value -> "\"" + escape(value) + "\"")
+                            .collect(Collectors.joining(","));
+            appendFieldUnescaped(key, "[" + escapedValues + "]");
+            return this;
+        }
+
+        /**
+         * Appends an integer array to the JSON.
+         *
+         * @param key The key of the field.
+         * @param values The integer array.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendField(String key, int[] values) {
+            if (values == null) {
+                throw new IllegalArgumentException("JSON values must not be null");
+            }
+            String escapedValues =
+                    Arrays.stream(values).mapToObj(String::valueOf).collect(Collectors.joining(","));
+            appendFieldUnescaped(key, "[" + escapedValues + "]");
+            return this;
+        }
+
+        /**
+         * Appends an object array to the JSON.
+         *
+         * @param key The key of the field.
+         * @param values The integer array.
+         * @return A reference to this object.
+         */
+        public JsonObjectBuilder appendField(String key, JsonObject[] values) {
+            if (values == null) {
+                throw new IllegalArgumentException("JSON values must not be null");
+            }
+            String escapedValues =
+                    Arrays.stream(values).map(JsonObject::toString).collect(Collectors.joining(","));
+            appendFieldUnescaped(key, "[" + escapedValues + "]");
+            return this;
+        }
+
+        /**
+         * Appends a field to the object.
+         *
+         * @param key The key of the field.
+         * @param escapedValue The escaped value of the field.
+         */
+        private void appendFieldUnescaped(String key, String escapedValue) {
+            if (builder == null) {
+                throw new IllegalStateException("JSON has already been built");
+            }
+            if (key == null) {
+                throw new IllegalArgumentException("JSON key must not be null");
+            }
+            if (hasAtLeastOneField) {
+                builder.append(",");
+            }
+            builder.append("\"").append(escape(key)).append("\":").append(escapedValue);
+            hasAtLeastOneField = true;
+        }
+
+        /**
+         * Builds the JSON string and invalidates this builder.
+         *
+         * @return The built JSON string.
+         */
+        public JsonObject build() {
+            if (builder == null) {
+                throw new IllegalStateException("JSON has already been built");
+            }
+            JsonObject object = new JsonObject(builder.append("}").toString());
+            builder = null;
+            return object;
+        }
+
+        /**
+         * Escapes the given string like stated in https://www.ietf.org/rfc/rfc4627.txt.
+         *
+         * <p>This method escapes only the necessary characters '"', '\'. and '\u0000' - '\u001F'.
+         * Compact escapes are not used (e.g., '\n' is escaped as "\u000a" and not as "\n").
+         *
+         * @param value The value to escape.
+         * @return The escaped value.
+         */
+        private static String escape(String value) {
+            final StringBuilder builder = new StringBuilder();
+            for (int i = 0; i < value.length(); i++) {
+                char c = value.charAt(i);
+                if (c == '"') {
+                    builder.append("\\\"");
+                } else if (c == '\\') {
+                    builder.append("\\\\");
+                } else if (c <= '\u000F') {
+                    builder.append("\\u000").append(Integer.toHexString(c));
+                } else if (c <= '\u001F') {
+                    builder.append("\\u00").append(Integer.toHexString(c));
+                } else {
+                    builder.append(c);
+                }
+            }
+            return builder.toString();
+        }
+
+        /**
+         * A super simple representation of a JSON object.
+         *
+         * <p>This class only exists to make methods of the {@link JsonObjectBuilder} type-safe and not
+         * allow a raw string inputs for methods like {@link JsonObjectBuilder#appendField(String,
+         * JsonObject)}.
+         */
+        public static class JsonObject {
+
+            private final String value;
+
+            private JsonObject(String value) {
+                this.value = value;
+            }
+
+            @Override
+            public String toString() {
+                return value;
+            }
+        }
+    }
+}

spigot/src/main/resources/plugin.yml

@@ -0,0 +1,3 @@
+name: EptaList
+version: "1.1-release"
+main: org.eptalist.spigot.EptaList

velocity/build.gradle

@@ -0,0 +1,57 @@
+plugins {
+    id 'java'
+    id 'eclipse'
+    id 'org.jetbrains.gradle.plugin.idea-ext' version '1.1.8'
+}
+
+group = 'org.eg4rerer'
+version = "1.1-release"
+
+repositories {
+    mavenCentral()
+    maven {
+        name = "papermc-repo"
+        url = "https://repo.papermc.io/repository/maven-public/"
+    }
+    maven {
+        name = "sonatype"
+        url = "https://oss.sonatype.org/content/groups/public/"
+    }
+}
+
+dependencies {
+    compileOnly("com.velocitypowered:velocity-api:3.4.0-SNAPSHOT")
+    annotationProcessor("com.velocitypowered:velocity-api:3.4.0-SNAPSHOT")
+    compileOnly project(':base')
+}
+
+def targetJavaVersion = 17
+java {
+    toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion)
+}
+
+tasks.withType(JavaCompile).configureEach {
+    options.encoding = 'UTF-8'
+    options.release.set(targetJavaVersion)
+}
+
+def templateSource = file('src/main/templates')
+def templateDest = layout.buildDirectory.dir('generated/sources/templates')
+def generateTemplates = tasks.register('generateTemplates', Copy) { task ->
+    def props = ['version': project.version]
+    task.inputs.properties props
+
+    task.from templateSource
+    task.into templateDest
+    task.expand props
+}
+
+sourceSets.main.java.srcDir(generateTemplates.map { it.outputs })
+
+//project.idea.project.settings.taskTriggers.afterSync generateTemplates
+project.eclipse.synchronizationTasks(generateTemplates)
+task createJar(type: Jar) {
+    archiveBaseName = 'velocity'
+    archiveVersion = 'marge'
+    from sourceSets.main.output
+}

velocity/settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'velocity'
+include ':base'

velocity/src/main/java/org/eptalist/velocity/Velocity.java

@@ -0,0 +1,94 @@
+package org.eptalist.velocity;
+
+import com.google.gson.reflect.TypeToken;
+import com.google.inject.Inject;
+import com.velocitypowered.api.command.CommandManager;
+import com.velocitypowered.api.event.ResultedEvent;
+import com.velocitypowered.api.event.connection.LoginEvent;
+import com.velocitypowered.api.event.proxy.ProxyInitializeEvent;
+import com.velocitypowered.api.event.Subscribe;
+import com.velocitypowered.api.plugin.Plugin;
+import com.velocitypowered.api.plugin.annotation.DataDirectory;
+import com.velocitypowered.api.proxy.ProxyServer;
+import io.github.p2vman.Identifier;
+import io.github.p2vman.profiling.ExempleProfiler;
+import io.github.p2vman.profiling.Profiler;
+import net.kyori.adventure.text.Component;
+import org.eptalist.Config;
+import org.eptalist.storge.Data;
+import org.eptalist.velocity.metrics.Metrics;
+import org.slf4j.Logger;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+
+@Plugin(id = "velocity", name = "velocity", version = BuildConstants.VERSION)
+public class Velocity {
+    private static Metrics metrics;
+    public static final Profiler profiler = new ExempleProfiler();
+    public static final java.util.logging.Logger LOGGER = java.util.logging.Logger.getLogger("EptaList");
+    @Inject
+    private Logger logger;
+    public static Config.ConfigContainer config;
+    private Path dataDirectory;
+    private final Metrics.Factory metricsFactory;
+
+    public static Data list;
+    public static Config.Mode mode;
+    public static List<Identifier> identifiers = new ArrayList<>();
+    public static void load() {
+        profiler.push("load");
+        config.load();
+        identifiers.clear();
+        for (Config.Mode mode1 : config.get().modes) {
+            identifiers.add(mode1.id);
+        }
+        {
+            Identifier id = config.get().curent;
+            for (Config.Mode mode1 : config.get().modes) if (mode1.id.equals(id)) {
+                mode = mode1;
+                break;
+            }
+        }
+        try {
+            list = (Data) Class.forName(mode.storage).getConstructor(Map.class).newInstance(mode.data);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        LOGGER.log(Level.INFO, String.format("Load Plugin Configuration %sms", profiler.getElapsedTimeAndRemove(profiler.pop())));
+    }
+
+    @Inject
+    public Velocity(ProxyServer server, @DataDirectory Path dataDirectory, Metrics.Factory metricsFactory) {
+        profiler.push("init");
+        this.metricsFactory = metricsFactory;
+        this.dataDirectory = dataDirectory;
+        if (!Files.exists(dataDirectory)) {
+            dataDirectory.toFile().mkdirs();
+        }
+        config = new Config.ConfigContainer(new File(dataDirectory.toFile(), "config.json"));
+        load();
+        CommandManager commandManager = server.getCommandManager();
+        commandManager.register("eptalist", new WhiteListCommand(logger));
+        LOGGER.log(Level.INFO, String.format("Load Plugin Configuration %sms", profiler.getElapsedTimeAndRemove(profiler.pop())));
+    }
+
+    @Subscribe
+    public void onProxyInitialization(ProxyInitializeEvent event) {
+        Metrics metrics = metricsFactory.make(this, 24527);
+
+        metrics.addCustomChart(new Metrics.SimplePie("data_type", () -> mode.storage));
+    }
+
+    @Subscribe
+    public void onLogin(LoginEvent event) {
+        if (list.is(event.getPlayer().getUsername())) {
+            event.setResult(ResultedEvent.ComponentResult.denied(Component.text("")));
+        }
+    }
+}

velocity/src/main/java/org/eptalist/velocity/WhiteListCommand.java

@@ -0,0 +1,146 @@
+package org.eptalist.velocity;
+
+import com.google.common.collect.ImmutableList;
+import com.velocitypowered.api.command.CommandSource;
+import com.velocitypowered.api.command.SimpleCommand;
+import io.github.p2vman.Identifier;
+import net.kyori.adventure.text.Component;
+import org.slf4j.Logger;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class WhiteListCommand implements SimpleCommand {
+    private final String[] w1 = new String[]{
+            "off",
+            "on",
+            "add",
+            "remove",
+            "list",
+            "help",
+            "mode",
+            "reload"
+    };
+
+    private Logger logger;
+
+    public WhiteListCommand(Logger logger) {
+        this.logger = logger;
+    }
+
+    @Override
+    public void execute(Invocation invocation) {
+        CommandSource sender = invocation.source();
+        String[] args = invocation.arguments();
+
+        if (args.length == 0) {
+            sender.sendMessage(Component.text(String.format("/eptalist (%s)", String.join("/", w1))));
+            return;
+        }
+
+        switch (args[0].toLowerCase()) {
+            case "off":
+                Velocity.config.get().enable = false;
+                Velocity.config.save();
+                sender.sendMessage(Component.text("Whitelist disabled."));
+                break;
+
+            case "on":
+                Velocity.config.get().enable = true;
+                Velocity.config.save();
+                sender.sendMessage(Component.text("Whitelist enabled."));
+                break;
+
+            case "add":
+                if (args.length < 2) {
+                    sender.sendMessage(Component.text("Usage: /eptalist add <username>"));
+                    break;
+                }
+                String usernameToAdd = args[1];
+                List<String> infoAdd = new ArrayList<>();
+                if (Velocity.list.addUser(usernameToAdd, infoAdd)) {
+                    sender.sendMessage(Component.text("User added to the whitelist: " + usernameToAdd));
+                } else {
+                    infoAdd.forEach(line -> sender.sendMessage(Component.text(line)));
+                }
+                break;
+
+            case "remove":
+                if (args.length < 2) {
+                    sender.sendMessage(Component.text("Usage: /eptalist remove <username>"));
+                    break;
+                }
+                String usernameToRemove = args[1];
+                List<String> infoRemove = new ArrayList<>();
+                if (Velocity.list.removeUser(usernameToRemove, infoRemove)) {
+                    sender.sendMessage(Component.text("User removed from the whitelist: " + usernameToRemove));
+                } else {
+                    infoRemove.forEach(line -> sender.sendMessage(Component.text(line)));
+                }
+                break;
+
+            case "list":
+                sender.sendMessage(Component.text("Whitelisted players: " + Velocity.list.toList()));
+                break;
+
+            case "mode":
+                if (args.length < 2) {
+                    sender.sendMessage(Component.text("Usage: /eptalist mode <ID>"));
+                    break;
+                }
+                Identifier id = Identifier.tryParse(args[1]);
+                if (id != null && Velocity.identifiers.contains(id)) {
+                    Velocity.config.get().curent = id;
+                    Velocity.config.save();
+                    Velocity.load();
+                    sender.sendMessage(Component.text("Mode set to: " + id));
+                } else {
+                    sender.sendMessage(Component.text("Invalid mode ID!"));
+                }
+                break;
+            case "help":
+                sender.sendMessage(Component.text(String.join("\n",
+                        "1: /eptalist add <username> - Add user to whitelist",
+                        "2: /eptalist remove <username> - Remove user from whitelist",
+                        "3: /eptalist list - Display whitelisted players",
+                        "4: /eptalist on - Enable whitelist",
+                        "5: /eptalist off - Disable whitelist",
+                        "6: /eptalist mode <ID> - Set list data mode",
+                        "7: /eptalist kick_nolisted - Kick non-whitelisted players",
+                        "8: /eptalist reload - Reload the whitelist configuration"
+                )));
+                break;
+
+            case "reload":
+                try {
+                    Velocity.load();
+                    sender.sendMessage(Component.text("Configuration reloaded successfully."));
+                } catch (Exception e) {
+                    logger.error("Failed to reload the configuration.", e);
+                    sender.sendMessage(Component.text("Failed to reload the configuration."));
+                }
+                break;
+
+            default:
+                sender.sendMessage(Component.text("Unknown command. Use /eptalist help for the list of commands."));
+                break;
+        }
+    }
+
+    @Override
+    public List<String> suggest(Invocation invocation) {
+        String[] args = invocation.arguments();
+
+        if (args.length == 0) {
+            return ImmutableList.of();
+        } else if (args.length == 1) {
+            return Arrays.stream(w1)
+                    .filter(cmd -> cmd.startsWith(args[0].toLowerCase()))
+                    .sorted(String.CASE_INSENSITIVE_ORDER)
+                    .collect(Collectors.toList());
+        }
+        return ImmutableList.of();
+    }
+}

velocity/src/main/templates/org/eptalist/velocity/BuildConstants.java

@@ -0,0 +1,7 @@
+package org.eptalist.velocity;
+
+// The constants are replaced before compilation
+public class BuildConstants {
+
+    public static final String VERSION = "${version}";
+}