TCPShield Fabric support (#40 )

Adds Fabric support (huge, huge thanks to @Draylar)
Updates outdated docs link
2021-03-09 18:35:31 +01:00 · 2021-02-27 16:21:33 +01:00 · 2021-02-27 16:20:44 +01:00 · 2021-02-27 16:12:57 +01:00 · 2021-02-25 19:18:26 +01:00 · 2021-02-25 19:14:47 +01:00
72 changed files with 2367 additions and 616 deletions
@@ -1,4 +1,13 @@
+# Testing
+ip-whitelist/
+
+# IntelliJ
 .idea/
-*/target/
-*/*/target/
-*.iml
+build/
+*.iml
+
+# Gradle
+.gradle/
+gradle/
+gradlew
+gradlew.bat
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 TCPShield
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,13 +1,34 @@
-# RealIP
-Bungee/Spigot plugin which parses client IP addresses passed from the TCPShield network.
+# TCPShield
+TCPShield is the plugin for the same named DDoS mitigation service [TCPShield](https://tcpshield.com).
+
+This plugin is responsible for validating clients join via the TCPShield network.
+It also parses passed IP addresses so the server is aware of the real player IP address.  
+
+### Compatibility
+
+TCPShield is compatible with Spigot / CraftBukkit, BungeeCord, Velocity and Fabric.
+
+When using Spigot / CraftBukkit, [ProtocolLib](https://github.com/aadnk/ProtocolLib) needs to be installed.
+This does not apply when using Paper 1.16 build #503 or higher. 
+
+### Setup
+Setting up the plugin is easy as pie. Please follow [these](https://docs.tcpshield.com/config/tcpshield-plugin) guidelines. 

 ### Compiling
-To compile this project, install maven and run the following command:
+In order to compile TCPShield, [install Gradle](https://docs.gradle.org/current/userguide/installation.html) and run the following command in the project folder:
 ```
-mvn clean install
+gradle build
 ```

+The dependencies should install themselves automatically. After the build has finished, the compiled jar file can be found under `/build/libs`.
+
 ### Support
-Please contact [@RyanDeLap](https://t.me/RyanDeLap) on Telegram for all support related to this product.
+See [Contact](https://docs.tcpshield.com/about-us)

-Before contact, ensure you have tested with no Bungee Plugins installed. Plugins like BungeePluginManager will break this plugin!
+### Contributors
+
+These wonderful contributors have helped TCPShield make this plugin better! 
+
+* [Paul Zhang](https://github.com/paulzhng)
+* [Draylar](https://github.com/Draylar)
+* [RyanDeLap](https://github.com/RyanDeLap)
@@ -0,0 +1,170 @@
+import com.google.gson.GsonBuilder
+import com.google.gson.JsonObject
+import com.google.gson.JsonParser
+import org.yaml.snakeyaml.DumperOptions
+import org.yaml.snakeyaml.Yaml
+
+import java.nio.charset.StandardCharsets
+
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath group: 'org.yaml', name: 'snakeyaml', version: '1.26'
+        classpath group: 'com.google.code.gson', name: 'gson', version: '2.8.6'
+    }
+}
+
+plugins {
+    id 'java'
+    id 'idea'
+    id 'fabric-loom' version '0.6-SNAPSHOT'
+}
+
+repositories {
+    maven {
+        url = 'https://repo1.maven.org/maven2/'
+    }
+    maven {
+        url = 'https://hub.spigotmc.org/nexus/content/repositories/snapshots/'
+    }
+    maven {
+        url = 'https://repo.dmulloy2.net/nexus/repository/public/'
+    }
+    maven {
+        url = 'https://oss.sonatype.org/content/repositories/snapshots'
+    }
+    maven {
+        url = 'https://papermc.io/repo/repository/maven-public/'
+    }
+    maven {
+        url = 'https://repo.velocitypowered.com/snapshots/'
+    }
+    maven {
+        url = 'https://maven.fabricmc.net/'
+    }
+    flatDir {
+        dirs '/libs'
+    }
+}
+
+dependencies {
+    // Bukkit
+    compileOnly group: 'org.spigotmc', name: 'spigot-api', version: '1.11-R0.1-SNAPSHOT'
+    compileOnly group: 'com.comphenix.protocol', name: 'ProtocolLib', version: '4.4.0'
+
+    // Paper
+    compileOnly group: 'com.destroystokyo.paper', name: 'paper-api', version: '1.16.5-R0.1-20210227.144841-85'
+
+    // BungeeCord
+    compileOnly group: 'net.md-5', name: 'bungeecord-api', version: '1.14-SNAPSHOT'
+
+    // Velocity
+    compileOnly group: 'com.velocitypowered', name: 'velocity-api', version: '1.0.0-SNAPSHOT'
+
+    // Fabric
+    minecraft "com.mojang:minecraft:1.16.5"
+    mappings "net.fabricmc:yarn:1.16.5+build.5:v2"
+    modImplementation group: 'net.fabricmc', name: 'fabric-loader', version: '0.11.2'
+
+    // Testing
+    testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.7.0-M1'
+    testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.7.0-M1'
+
+    compileOnly 'org.geyser:floodgate-spigot:2.0'
+}
+
+test {
+    useJUnitPlatform()
+}
+
+configurations {
+    testImplementation.extendsFrom compileOnly
+}
+
+version = '2.5'
+group = 'net.tcpshield.tcpshield'
+archivesBaseName = 'TCPShield'
+
+sourceSets {
+    main {
+        java {
+            srcDirs('src/main/java')
+        }
+        resources {
+            srcDirs('src/main/resources')
+        }
+    }
+    test {
+        java {
+            srcDirs('src/test/java')
+        }
+        resources {
+            srcDirs('src/test/resources')
+        }
+    }
+}
+
+idea {
+    module {
+        downloadJavadoc = true
+        downloadSources = true
+    }
+}
+
+compileJava {
+    sourceCompatibility = targetCompatibility = '1.8'
+    options.encoding = 'UTF-8'
+}
+
+task updateVersion {
+    updateYaml()
+    updateJson()
+}
+
+void updateYaml() {
+    DumperOptions options = new DumperOptions()
+    options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK)
+    options.setSplitLines(false)
+    options.setPrettyFlow(true)
+
+    def yaml = new Yaml(options)
+
+    def bukkitYamlFile = new File('src/main/resources/plugin.yml')
+    def bungeeYamlFile = new File('src/main/resources/bungee.yml')
+
+    def files = [bukkitYamlFile, bungeeYamlFile]
+    files.each { file ->
+        file.newInputStream().withCloseable { inputStream ->
+            def cfg = yaml.load(inputStream)
+            cfg.put("version", version)
+
+            new FileWriter(file).withCloseable { writer ->
+                yaml.dump(cfg, writer)
+            }
+        }
+    }
+}
+
+void updateJson() {
+    def gson = new GsonBuilder().setPrettyPrinting().create();
+    def velocityJson = new File('src/main/resources/velocity-plugin.json')
+
+    def files = [velocityJson]
+    files.each { file ->
+        file.newInputStream().withCloseable { inputStream ->
+            new InputStreamReader(inputStream, StandardCharsets.UTF_8).withCloseable { inputStreamReader ->
+                JsonObject object = JsonParser.parseReader(inputStreamReader).getAsJsonObject()
+                object.addProperty("version", version.toString())
+
+                new FileWriter(file).withCloseable { writer ->
+                    writer.write(gson.toJson(object))
+                }
+            }
+        }
+
+    }
+}
+
+build.dependsOn updateVersion
@@ -1,85 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.tcpshield.realip</groupId>
-    <artifactId>TCPShield</artifactId>
-    <version>1.7-SNAPSHOT</version>
-    <properties>
-        <project.build.sourceEncoding>ISO-8859-1</project.build.sourceEncoding>
-    </properties>
-
-    <repositories>
-        <repository>
-            <id>spigot-repo</id>
-            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
-        </repository>
-        <repository>
-            <id>dmulloy2-repo</id>
-            <url>http://repo.dmulloy2.net/nexus/repository/public/</url>
-        </repository>
-        <repository>
-            <id>bungeecord-repo</id>
-            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
-        </repository>
-    </repositories>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.spigotmc</groupId>
-            <artifactId>spigot-api</artifactId>
-            <version>1.11-R0.1-SNAPSHOT</version>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.comphenix.protocol</groupId>
-            <artifactId>ProtocolLib</artifactId>
-            <version>4.4.0</version>
-        </dependency>
-        <dependency>
-            <groupId>net.md-5</groupId>
-            <artifactId>bungeecord-api</artifactId>
-            <version>1.14-SNAPSHOT</version>
-            <type>jar</type>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.md-5</groupId>
-            <artifactId>bungeecord-api</artifactId>
-            <version>1.14-SNAPSHOT</version>
-            <type>javadoc</type>
-            <scope>provided</scope>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <finalName>TCPShield</finalName>
-        <sourceDirectory>src/main/java</sourceDirectory>
-        <resources>
-            <resource>
-                <targetPath>.</targetPath>
-                <filtering>true</filtering>
-                <directory>${basedir}/src/main/resources/</directory>
-                <includes>
-                    <include>*.yml</include>
-                    <include>*.key</include>
-                </includes>
-            </resource>
-        </resources>
-        <plugins>
-            <plugin>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>2.3.1</version>
-                <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
-                </configuration>
-            </plugin>
-
-        </plugins>
-
-    </build>
-
-</project>
@@ -0,0 +1,10 @@
+pluginManagement {
+    repositories {
+        jcenter()
+        maven {
+            name = 'Fabric'
+            url = 'https://maven.fabricmc.net/'
+        }
+        gradlePluginPortal()
+    }
+}
@@ -1,178 +0,0 @@
-package net.tcpshield.realip;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.server.SocketInjector;
-import com.comphenix.protocol.injector.server.TemporaryPlayerFactory;
-import io.netty.channel.AbstractChannel;
-import io.netty.channel.Channel;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
-import java.net.InetSocketAddress;
-import java.net.SocketAddress;
-import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.logging.Logger;
-
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-
-public class HandshakePacketHandler extends PacketAdapter {
-    private String properField = null;
-    private final Logger logger;
-    private final boolean onlyProxy;
-    private final boolean debugMode;
-
-    public HandshakePacketHandler(Logger logger, boolean onlyProxy, boolean debugMode) {
-        super(TCPShieldBukkit.getInstance(), new PacketType[]{PacketType.Handshake.Client.SET_PROTOCOL});
-        this.logger = logger;
-        this.onlyProxy = onlyProxy;
-        this.debugMode = debugMode;
-    }
-
-    public void onPacketReceiving(PacketEvent event) {
-        boolean proxyConnection = false;
-        String raw = null;
-        try {
-            raw = (String) event.getPacket().getStrings().read(0);
-            String extraData = "";
-            String[] hostnameSplits = raw.split("\0", 2);
-            if(hostnameSplits.length > 1) {
-                extraData = hostnameSplits[1];
-            }
-            raw = hostnameSplits[0];
-
-            String[] payload = raw.split("///", 3);
-            if (payload.length >= 3) {
-                String hostname = payload[0];
-                String ipData = payload[1];
-                String[] ts_sig = payload[2].split("///", 2);
-                if (ts_sig.length >= 2) {
-                    int timestamp = Integer.parseInt(ts_sig[0]);
-                    String signature = ts_sig[1];
-
-                    String[] hostnameParts = ipData.split(":");
-                    String host = hostnameParts[0];
-                    int port = Integer.parseInt(hostnameParts[1]);
-
-                    String reconstructedPayload = hostname + "///" + host + ":" + port + "///" + timestamp;
-
-                    if (!Signing.verify(reconstructedPayload.getBytes(StandardCharsets.UTF_8), signature)) {
-                        throw new Exception("Couldn't verify signature.");
-                    }
-                    try {
-                        SocketInjector ignored = TemporaryPlayerFactory.getInjectorFromPlayer(event.getPlayer());
-                        Object injector = ReflectionUtils.getPrivateField(ignored.getClass(), ignored, "injector");
-                        Object networkManager = ReflectionUtils.getPrivateField(injector.getClass(), injector, "networkManager");
-                        if (this.properField == null) {
-                            this.properField = ReflectionUtils.getProperField(networkManager.getClass());
-                        }
-                        Channel channel = (Channel) ReflectionUtils.getPrivateField(injector.getClass(), injector, "originalChannel");
-                        InetSocketAddress newRemoteAddress = new InetSocketAddress(host, port);
-                        proxyConnection = true;
-                        try {
-                            ReflectionUtils.setFinalField(networkManager.getClass(), networkManager, this.properField == null ? "l" : this.properField, newRemoteAddress);
-                        } catch (Exception e) {
-                            e.printStackTrace();
-                        }
-                        ReflectionUtils.setFinalField(AbstractChannel.class, channel, "remoteAddress", newRemoteAddress);
-                    } catch (Exception e) {
-                        e.printStackTrace();
-                    }
-
-                    hostname = hostname + extraData;
-                    event.getPacket().getStrings().write(0, hostname);
-                }
-            }
-        } catch (Exception ex) {
-                ex.printStackTrace();
-        } finally {
-            if ((this.onlyProxy) && (!proxyConnection)) {
-                Player player = event.getPlayer();
-
-                if (this.debugMode) {
-                    this.logger.warning("Disconnecting " + player.getAddress() + " because no proxy info was received and only-allow-proxy-connections is enabled.");
-                }
-
-                if (raw != null) {
-                    this.logger.warning(raw);
-                }
-                player.kickPlayer("");
-            }
-        }
-    }
-
-
-    private Class getNmsClass(String name) throws ClassNotFoundException {
-        return Class.forName(getNmsPackage() + "." + name);
-    }
-
-    private String getNmsPackage() {
-        String obcString = Bukkit.getServer().getClass().getPackage().getName();
-        String versionString = obcString.substring(obcString.lastIndexOf('.') + 1);
-        return "net.minecraft.server." + versionString;
-    }
-
-    public static class ReflectionUtils {
-        private static final Field FIELD_MODIFIERS;
-        private static Map<Class<?>, Map<String, Field>> cachedFields = new HashMap();
-
-        public static void setFinalField(Class objectClass, Object object, String fieldName, Object value)
-                throws Exception {
-            Field field = getDeclaredField(objectClass, fieldName);
-            field.setAccessible(true);
-            if (Modifier.isFinal(field.getModifiers())) {
-                FIELD_MODIFIERS.setInt(field, field.getModifiers() & 0xFFFFFFEF);
-            }
-            field.set(object, value);
-        }
-
-        public static Object getPrivateField(Class objectClass, Object object, String fieldName)
-                throws Exception {
-            Field field = getDeclaredField(objectClass, fieldName);
-            field.setAccessible(true);
-            return field.get(object);
-        }
-
-        public static String getProperField(Class objectClass) {
-            for (Field f : objectClass.getFields()) {
-                if (f.getType() == SocketAddress.class) {
-                    return f.getName();
-                }
-            }
-            return "N/A";
-        }
-
-        private static Field getDeclaredField(Class<?> clazz, String fieldName) {
-            if (!cachedFields.containsKey(clazz)) {
-                cachedFields.put(clazz, new HashMap());
-            }
-            Map<String, Field> clazzCache = (Map) cachedFields.get(clazz);
-            if (clazzCache.containsKey(fieldName)) {
-                return (Field) clazzCache.get(fieldName);
-            }
-            try {
-                Field field = clazz.getDeclaredField(fieldName);
-                clazzCache.put(fieldName, field);
-                return field;
-            } catch (NoSuchFieldException e) {
-                clazzCache.put(fieldName, null);
-                throw new RuntimeException(e);
-            }
-        }
-
-        static {
-            Field field = null;
-            try {
-                field = getDeclaredField(Field.class, "modifiers");
-                field.setAccessible(true);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            FIELD_MODIFIERS = field;
-        }
-    }
-}
@@ -1,36 +0,0 @@
-package net.tcpshield.realip;
-
-import com.google.common.io.ByteStreams;
-
-import java.io.IOException;
-import java.security.InvalidKeyException;
-import java.security.KeyFactory;
-import java.security.NoSuchAlgorithmException;
-import java.security.PublicKey;
-import java.security.Signature;
-import java.security.SignatureException;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.X509EncodedKeySpec;
-import java.util.Base64;
-
-public class Signing {
-    private static PublicKey publicKey;
-
-    public static void init()
-            throws IOException, NoSuchAlgorithmException, InvalidKeySpecException {
-        byte[] encodedKey = ByteStreams.toByteArray(Signing.class.getResourceAsStream("/signing_pub.key"));
-        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(encodedKey);
-
-        KeyFactory keyFactory = KeyFactory.getInstance("EC");
-        publicKey = keyFactory.generatePublic(keySpec);
-    }
-
-    public static boolean verify(byte[] data, String signature)
-            throws NoSuchAlgorithmException, InvalidKeyException, SignatureException {
-        byte[] decodedSignature = Base64.getDecoder().decode(signature);
-        Signature sig = Signature.getInstance("SHA512withECDSA");
-        sig.initVerify(publicKey);
-        sig.update(data);
-        return sig.verify(decodedSignature);
-    }
-}
@@ -1,47 +0,0 @@
-package net.tcpshield.realip;
-
-import com.comphenix.protocol.ProtocolLibrary;
-import java.io.IOException;
-import java.security.NoSuchAlgorithmException;
-import java.security.spec.InvalidKeySpecException;
-import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.event.Listener;
-import org.bukkit.plugin.java.JavaPlugin;
-
-public class TCPShieldBukkit extends JavaPlugin implements Listener {
-    private static TCPShieldBukkit INSTANCE;
-    private static Boolean stopping = Boolean.valueOf(false);
-    private boolean onlyProxy;
-    private boolean debugMode;
-
-    public void onEnable() {
-        INSTANCE = this;
-        try {
-            Signing.init();
-        } catch (IOException | NoSuchAlgorithmException | InvalidKeySpecException e) {
-            getLogger().severe("Couldn't initialize signing module.");
-            throw new RuntimeException(e);
-        }
-
-        saveDefaultConfig();
-        FileConfiguration config = getConfig();
-        this.onlyProxy = config.getBoolean("only-allow-proxy-connections");
-        this.debugMode = config.getBoolean("debug-mode");
-
-        ProtocolLibrary.getProtocolManager().addPacketListener(new HandshakePacketHandler(getLogger(), this.onlyProxy, this.debugMode));
-
-    }
-
-
-    public void onDisable() {
-        stopping = Boolean.valueOf(true);
-        INSTANCE = null;
-    }
-
-    public static TCPShieldBukkit getInstance() {
-        if (stopping.booleanValue()) {
-            throw new IllegalAccessError("Plugin is disabling!");
-        }
-        return INSTANCE;
-    }
-}
@@ -1,254 +0,0 @@
-package net.tcpshield.realip;
-
-import io.netty.channel.AbstractChannel;
-import io.netty.channel.Channel;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.net.InetSocketAddress;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.CopyOption;
-import java.nio.file.Files;
-import java.security.NoSuchAlgorithmException;
-import java.security.spec.InvalidKeySpecException;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import net.md_5.bungee.api.ProxyServer;
-import net.md_5.bungee.api.chat.BaseComponent;
-import net.md_5.bungee.api.connection.PendingConnection;
-import net.md_5.bungee.api.event.PlayerHandshakeEvent;
-import net.md_5.bungee.api.event.ProxyPingEvent;
-import net.md_5.bungee.api.plugin.Listener;
-import net.md_5.bungee.api.plugin.Plugin;
-import net.md_5.bungee.api.plugin.PluginManager;
-import net.md_5.bungee.config.Configuration;
-import net.md_5.bungee.config.ConfigurationProvider;
-import net.md_5.bungee.config.YamlConfiguration;
-import net.md_5.bungee.event.EventHandler;
-
-public class TCPShieldBungee extends Plugin implements Listener {
-    private boolean onlyProxy;
-    private boolean debugMode;
-
-    public void onEnable() {
-        saveDefaultConfig();
-        Configuration config = loadConfig();
-        try {
-            Signing.init();
-        } catch (IOException | NoSuchAlgorithmException | InvalidKeySpecException e) {
-            getLogger().severe("Couldn't initialize signing module.");
-            throw new RuntimeException(e);
-        }
-        this.onlyProxy = config.getBoolean("only-allow-proxy-connections");
-        this.debugMode = config.getBoolean("debug-mode");
-
-        ProxyServer proxy = getProxy();
-        PluginManager pluginManager = proxy.getPluginManager();
-        pluginManager.registerListener(this, this);
-
-        Logger logger = ProxyServer.getInstance().getLogger();
-        Logger newLogger = new Logger("BungeeCord", null) {
-            public void log(Level level, String msg, Object param1) {
-                if ((msg.equals("{0} has connected")) && (param1.getClass().getSimpleName().equals("InitialHandler"))) {
-                    return;
-                }
-                super.log(level, msg, param1);
-            }
-        };
-        newLogger.setParent(logger);
-        try {
-            set(ProxyServer.getInstance(), "logger", newLogger);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    private Configuration loadConfig() {
-        try {
-            ConfigurationProvider configProvider = ConfigurationProvider.getProvider(YamlConfiguration.class);
-            File configFile = getConfigFile();
-            return configProvider.load(configFile);
-        } catch (IOException e) {
-            throw new RuntimeException("Couldn't load config", e);
-        }
-    }
-
-    private void saveDefaultConfig() {
-        File dataFolder = getDataFolder();
-        if (!dataFolder.exists()) {
-            dataFolder.mkdir();
-        }
-        File file = getConfigFile();
-        if (!file.exists()) {
-            try {
-                InputStream in = getResourceAsStream("config.yml");
-                Throwable localThrowable3 = null;
-                try {
-                    Files.copy(in, file.toPath(), new CopyOption[0]);
-                } catch (Throwable localThrowable1) {
-                    localThrowable3 = localThrowable1;
-                    throw localThrowable1;
-                } finally {
-                    if (in != null) {
-                        if (localThrowable3 != null) {
-                            try {
-                                in.close();
-                            } catch (Throwable localThrowable2) {
-                                localThrowable3.addSuppressed(localThrowable2);
-                            }
-                        } else {
-                            in.close();
-                        }
-                    }
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private File getConfigFile() {
-        File dataFolder = getDataFolder();
-        return new File(dataFolder, "config.yml");
-    }
-
-    @EventHandler(priority = -64)
-    public void onProxyPingEvent(ProxyPingEvent event) {
-        if(event.getConnection().isLegacy()) {
-            try {
-                Field wrapperField = event.getConnection().getClass().getDeclaredField("ch");
-                wrapperField.setAccessible(true);
-                Object wrapper = wrapperField.get(event.getConnection());
-                wrapperField.setAccessible(false);
-                Method m = wrapper.getClass().getMethod("close");
-                m.invoke(wrapper);
-
-            } catch(Exception e) {
-                event.getConnection().disconnect(new BaseComponent[0]);
-            }
-        }
-    }
-
-    @EventHandler(priority = -64)
-    public void onPlayerHandshake(PlayerHandshakeEvent e) {
-        boolean proxyConnection = false;
-        Channel channel = null;
-        try {
-            Field wrapperField = e.getConnection().getClass().getDeclaredField("ch");
-            wrapperField.setAccessible(true);
-            Object wrapper = wrapperField.get(e.getConnection());
-            wrapperField.setAccessible(false);
-
-            Field chField = wrapper.getClass().getDeclaredField("ch");
-            chField.setAccessible(true);
-            Channel ch = (Channel) chField.get(wrapper);
-            chField.setAccessible(false);
-            channel = ch;
-            if (e.getHandshake().getHost().contains("//")) {
-                String raw = e.getHandshake().getHost();
-
-                String[] payload = raw.split("///", 3);
-                if (payload.length >= 3) {
-                    String hostname = payload[0];
-                    String ipData = payload[1];
-                    String[] ts_sig = payload[2].split("///", 2);
-                    if (ts_sig.length >= 2) {
-                        int timestamp = Integer.parseInt(ts_sig[0]);
-                        String signature = ts_sig[1];
-
-                        String[] hostnameParts = ipData.split(":");
-                        String host = hostnameParts[0];
-                        int port = Integer.parseInt(hostnameParts[1]);
-
-                        String reconstructedPayload = hostname + "///" + host + ":" + port + "///" + timestamp;
-
-                        if (signature.contains("%%%")) {
-                            signature = signature.split("%%%", 2)[0];
-                        }
-
-                        if (!Signing.verify(reconstructedPayload.getBytes(StandardCharsets.UTF_8), signature)) {
-                            throw new Exception("Couldn't verify signature.");
-                        }
-
-                        long currentTime = System.currentTimeMillis() / 1000;
-
-                        if(!(timestamp >= (currentTime - 2) && timestamp <= (currentTime + 2))) {
-                            if(this.debugMode) {
-                                getLogger().warning("Current time: " + currentTime + ", Timestamp Time: "  + timestamp);
-                            }
-                            throw new Exception("Invalid signature timestamp, please check system's local clock if error persists.");
-                        }
-
-                        PendingConnection connection = e.getConnection();
-
-                        InetSocketAddress sockadd = new InetSocketAddress(host, port);
-                        proxyConnection = true;
-                        try {
-                            set(wrapper.getClass(), wrapper, "remoteAddress", sockadd);
-                        } catch (Exception ex) {
-                            ex.printStackTrace();
-                        }
-                        try {
-                            set(AbstractChannel.class, ch, "remoteAddress", sockadd);
-                        } catch (Exception ex) {
-                            ex.printStackTrace();
-                        }
-                        try {
-                            set(AbstractChannel.class, ch, "localAddress", sockadd);
-                        } catch (Exception ex) {
-                            ex.printStackTrace();
-                        }
-                        InetSocketAddress virtualHost = new InetSocketAddress(hostname, e.getHandshake().getPort());
-                        try {
-                            set(connection, "virtualHost", virtualHost);
-                        } catch (Exception ex) {
-                            try {
-                                set(connection, "vHost", virtualHost);
-                            } catch (Exception e2) {
-                                e2.printStackTrace();
-                            }
-                        }
-                        try {
-                            set(e.getHandshake(), "host", hostname);
-                        } catch (Exception ex) {
-                            ex.printStackTrace();
-                        }
-                    }
-                }
-            }
-        } catch (Exception localException) {
-            localException.printStackTrace();
-        } finally {
-            if (this.onlyProxy && !proxyConnection) {
-                Logger logger = getLogger();
-                PendingConnection connection = e.getConnection();
-                if(this.debugMode) {
-                    logger.warning("Disconnecting " + connection.getAddress() + " because no proxy info was received and only-allow-proxy-connections is enabled.");
-                }
-                if (channel != null) {
-                    channel.flush().close();
-                } else {
-                    connection.disconnect(new BaseComponent[0]);
-                }
-            }
-        }
-    }
-
-    protected static void set(Object main_object, String field, Object value)
-            throws Exception {
-        Field f = main_object.getClass().getDeclaredField(field);
-        f.setAccessible(true);
-        f.set(main_object, value);
-    }
-
-    protected static void set(Class<?> c, Object main_object, String field, Object value)
-            throws Exception {
-        Field f = c.getDeclaredField(field);
-        f.setAccessible(true);
-        f.set(main_object, value);
-    }
-}
@@ -0,0 +1,93 @@
+package net.tcpshield.tcpshield;
+
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+import net.tcpshield.tcpshield.exception.IPModificationFailureException;
+import net.tcpshield.tcpshield.exception.InvalidIPException;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+import net.tcpshield.tcpshield.validation.IPValidation;
+
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.util.logging.Logger;
+
+public class HandshakePacketHandler {
+
+    private final Logger logger;
+    private final IPValidation ipValidation;
+    private final TCPShieldConfig config;
+
+    public HandshakePacketHandler(Logger logger, TCPShieldConfig config) {
+        try {
+            this.logger = logger;
+            this.ipValidation = new IPValidation(config, logger);
+            this.config = config;
+        } catch (Exception e) {
+            throw new TCPShieldInitializationException(e);
+        }
+    }
+
+    public void onHandshake(IPacket packet, IPlayer player) {
+        String rawPayload = packet.getRawPayload();
+
+        try {
+            InetAddress inetAddress = InetAddress.getByName(player.getIP());
+            if (!ipValidation.validateIP(inetAddress)) throw new InvalidIPException();
+
+            // raw payload is passed when it's not available -> e.g. Paper server list ping events
+            if (rawPayload == null) return;
+
+            String extraData = null;
+
+            // fix for e.g. incoming FML tagged packets
+            String cleanedPayload;
+            int nullIndex = rawPayload.indexOf('\0');
+            if (nullIndex != -1) { // FML tagged
+                cleanedPayload = rawPayload.substring(0, nullIndex);
+                extraData = rawPayload.substring(nullIndex);
+            } else { // standard
+                cleanedPayload = rawPayload;
+            }
+
+            String[] payload = cleanedPayload.split("///", 4);
+            if (payload.length < 2) return; // is nonetheless allowed as it passed the IP check
+
+            String hostname = payload[0];
+            String ipData = payload[1];
+
+            String[] hostnameParts = ipData.split(":");
+            String host = hostnameParts[0];
+            int port = Integer.parseInt(hostnameParts[1]);
+
+            InetSocketAddress newIP = new InetSocketAddress(host, port);
+            player.setIP(newIP);
+
+            if (extraData != null) hostname = hostname + extraData;
+
+            packet.modifyOriginalPacket(hostname);
+        } catch (InvalidIPException e) {
+            handleInvalidIPException(player, rawPayload);
+        } catch (IPModificationFailureException e) {
+            this.logger.warning(String.format("%s's IP failed to be modified. Raw payload = \"%s\"", player.getIP(), rawPayload));
+            e.printStackTrace();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void handleInvalidIPException(IPlayer player, String rawPayload) {
+        if (config.isDebug()) {
+            this.logger.warning(String.format("%s was disconnected because the client failed the ip check and only-allowed-proxy-connections is enabled. Raw payload = \"%s\"", player.getIP(), rawPayload));
+        }
+
+        if (config.isOnlyProxy()) {
+            player.disconnect();
+        }
+    }
+
+    public TCPShieldConfig getConfig() {
+        return config;
+    }
+
+}
@@ -0,0 +1,107 @@
+package net.tcpshield.tcpshield;
+
+import com.google.common.collect.HashBasedTable;
+import com.google.common.collect.Table;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Arrays;
+
+public class ReflectionUtils {
+
+    private static final Table<Class<?>, String, Field> CACHED_FIELDS_BY_NAME = HashBasedTable.create();
+    private static final Table<Class<?>, Class<?>, Field> CACHED_FIELDS_BY_CLASS = HashBasedTable.create();
+    private static Field modifiersField;
+
+    public static void setFinalField(Object object, String fieldName, Object value) throws NoSuchFieldException, IllegalAccessException {
+        setFinalField(object, getPrivateField(object.getClass(), fieldName), value);
+    }
+
+    public static void setFinalField(Object object, Field field, Object value) throws IllegalAccessException {
+        field.setAccessible(true);
+        if (Modifier.isFinal(field.getModifiers())) {
+            if (modifiersField == null) {
+                try {
+                    modifiersField = getDeclaredField(Field.class, "modifiers");
+                } catch (NoSuchFieldException e) { // workaround for when searching for the modifiers field on Java 12 or higher
+                    try {
+                        Method getDeclaredFields0 = Class.class.getDeclaredMethod("getDeclaredFields0", boolean.class);
+                        getDeclaredFields0.setAccessible(true);
+
+                        Field[] fields = (Field[]) getDeclaredFields0.invoke(Field.class, false);
+                        modifiersField = Arrays.stream(fields).filter(modifier -> modifier.getName().equals("modifiers")).findFirst().orElseThrow(() -> new TCPShieldInitializationException("Could not find the modifiers field"));
+                    } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e2) {
+                        throw new TCPShieldInitializationException(e2);
+                    }
+                }
+
+                modifiersField.setAccessible(true);
+            }
+
+             modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
+        }
+
+        setField(object, field, value);
+    }
+
+    public static void setField(Object object, String fieldName, Object value) throws IllegalAccessException, NoSuchFieldException {
+        setField(object, getPrivateField(object.getClass(), fieldName), value);
+    }
+
+    public static void setField(Object object, Field field, Object value) throws IllegalAccessException {
+        field.set(object, value);
+    }
+
+    public static Object getObjectInPrivateField(Object object, String fieldName) throws IllegalAccessException, NoSuchFieldException {
+        Field field = getPrivateField(object.getClass(), fieldName);
+        return field.get(object);
+    }
+
+    public static Field getPrivateField(Class<?> clazz, String fieldName) throws NoSuchFieldException {
+        Field field = getDeclaredField(clazz, fieldName);
+        field.setAccessible(true);
+        return field;
+    }
+
+    public static Field searchFieldByClass(Class<?> clazz, Class<?> searchFor) {
+        Field cachedField = CACHED_FIELDS_BY_CLASS.get(clazz, searchFor);
+        if (cachedField != null) return cachedField;
+
+        Class<?> currentClass = clazz;
+        do {
+            for (Field field : currentClass.getDeclaredFields()) {
+                if (!searchFor.isAssignableFrom(field.getType())) continue;
+
+                CACHED_FIELDS_BY_CLASS.put(clazz, searchFor, field);
+                return field;
+            }
+
+            currentClass = currentClass.getSuperclass();
+        } while (currentClass != null);
+
+        throw new IllegalArgumentException("no " + searchFor.getName() + " field for clazz = " + clazz.getName() + " found");
+    }
+
+    public static Field getDeclaredField(Class<?> clazz, String fieldName) throws NoSuchFieldException {
+        Field cachedField = CACHED_FIELDS_BY_NAME.get(clazz, fieldName);
+        if (cachedField != null) return cachedField;
+
+        Field field;
+        try {
+            field = clazz.getDeclaredField(fieldName);
+        } catch (NoSuchFieldException e) {
+            Class<?> superclass = clazz.getSuperclass();
+            if (superclass != null) {
+                return getDeclaredField(superclass, fieldName);
+            } else {
+                throw e;
+            }
+        }
+
+        CACHED_FIELDS_BY_NAME.put(clazz, fieldName, field);
+        return field;
+    }
+}
@@ -0,0 +1,9 @@
+package net.tcpshield.tcpshield.abstraction;
+
+public interface IPacket {
+
+    String getRawPayload();
+
+    void modifyOriginalPacket(String hostname) throws Exception;
+
+}
@@ -0,0 +1,15 @@
+package net.tcpshield.tcpshield.abstraction;
+
+import net.tcpshield.tcpshield.exception.IPModificationFailureException;
+
+import java.net.InetSocketAddress;
+
+public interface IPlayer {
+
+    String getIP();
+
+    void setIP(InetSocketAddress ip) throws IPModificationFailureException;
+
+    void disconnect();
+
+}
@@ -0,0 +1,28 @@
+package net.tcpshield.tcpshield.abstraction;
+
+import java.io.File;
+
+public abstract class TCPShieldConfig {
+
+    protected boolean onlyProxy;
+    protected File ipWhitelistFolder;
+    protected boolean debug;
+    protected boolean geyser;
+
+    public boolean isOnlyProxy() {
+        return this.onlyProxy;
+    }
+
+    public File getIPWhitelistFolder() {
+        return ipWhitelistFolder;
+    }
+
+    public boolean isDebug() {
+        return this.debug;
+    }
+
+    public boolean isGeyser() {
+        return this.geyser;
+    }
+
+}
@@ -0,0 +1,38 @@
+package net.tcpshield.tcpshield.bukkit;
+
+import net.tcpshield.tcpshield.bukkit.paper.TCPShieldPaper;
+import net.tcpshield.tcpshield.bukkit.protocollib.TCPShieldProtocolLib;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class TCPShieldBukkit extends JavaPlugin {
+
+    @Override
+    public void onEnable() {
+        if (isPaper()) {
+            new TCPShieldPaper(this).load();
+        } else {
+            if (Bukkit.getPluginManager().getPlugin("ProtocolLib") == null) {
+                this.getLogger().warning("TCPShield not loading because ProtocolLib is not installed. Either use Paper (1.16 build #503 or higher) to enable native compatibility or install ProtocolLib.");
+                return;
+            }
+
+            new TCPShieldProtocolLib(this).load();
+        }
+    }
+
+    /**
+     * Checks if the server version supports native Paper support (Paper 1.16.5 build #503 or higher)
+     *
+     * @return if the server version supports native Paper support
+     */
+    private boolean isPaper() {
+        try {
+            Class<?> handshakeEvent = Class.forName("com.destroystokyo.paper.event.player.PlayerHandshakeEvent");
+            handshakeEvent.getMethod("getOriginalSocketAddressHostname");
+            return true;
+        } catch (ClassNotFoundException | NoSuchMethodException e) {
+            return false;
+        }
+    }
+}
@@ -0,0 +1,21 @@
+package net.tcpshield.tcpshield.bukkit.impl;
+
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.io.File;
+
+public class BukkitConfigImpl extends TCPShieldConfig {
+
+    public BukkitConfigImpl(JavaPlugin javaPlugin) {
+        javaPlugin.saveDefaultConfig();
+
+        FileConfiguration config = javaPlugin.getConfig();
+
+        this.onlyProxy = config.getBoolean("only-allow-proxy-connections");
+        this.ipWhitelistFolder = new File(javaPlugin.getDataFolder(), "ip-whitelist");
+        this.geyser = config.getBoolean("enable-geyser-compatibility");
+        this.debug = config.getBoolean("debug-mode");
+    }
+}
@@ -0,0 +1,43 @@
+package net.tcpshield.tcpshield.bukkit.paper;
+
+import com.destroystokyo.paper.event.player.PlayerHandshakeEvent;
+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.bukkit.impl.BukkitConfigImpl;
+import net.tcpshield.tcpshield.bukkit.paper.impl.PaperPacketImpl;
+import net.tcpshield.tcpshield.bukkit.paper.impl.PaperPlayerImpl;
+import net.tcpshield.tcpshield.bukkit.paper.impl.PaperServerListPacketImpl;
+import net.tcpshield.tcpshield.bukkit.paper.impl.PaperServerListPingPlayerImpl;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class PaperHandshakePacketHandler implements Listener {
+
+    private final HandshakePacketHandler handshakePacketHandler;
+
+    public PaperHandshakePacketHandler(HandshakePacketHandler handshakePacketHandler) {
+        this.handshakePacketHandler = handshakePacketHandler;
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onHandshake(PlayerHandshakeEvent e) {
+        IPacket packet = new PaperPacketImpl(e);
+        IPlayer player = new PaperPlayerImpl(e);
+
+        handshakePacketHandler.onHandshake(packet, player);
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onServerPing(PaperServerListPingEvent e) {
+        if (e.getClient().isLegacy()) e.setCancelled(true);
+
+        IPacket packet = new PaperServerListPacketImpl(e);
+        IPlayer player = new PaperServerListPingPlayerImpl(e);
+
+        handshakePacketHandler.onHandshake(packet, player);
+    }
+}
@@ -0,0 +1,28 @@
+package net.tcpshield.tcpshield.bukkit.paper;
+
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.bukkit.impl.BukkitConfigImpl;
+import net.tcpshield.tcpshield.geyser.GeyserHandshakePacketHandler;
+import net.tcpshield.tcpshield.geyser.GeyserUtils;
+import net.tcpshield.tcpshield.velocity.VelocityHandshakePacketHandler;
+import net.tcpshield.tcpshield.velocity.impl.VelocityConfigImpl;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class TCPShieldPaper {
+
+    private final JavaPlugin plugin;
+
+    public TCPShieldPaper(JavaPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    public void load() {
+        HandshakePacketHandler handshakePacketHandler =  new HandshakePacketHandler(plugin.getLogger(), new BukkitConfigImpl(plugin));
+
+        GeyserUtils.initGeyserOrDefault(handshakePacketHandler, () -> {
+            PaperHandshakePacketHandler packetHandler = new PaperHandshakePacketHandler(handshakePacketHandler);
+            Bukkit.getPluginManager().registerEvents(packetHandler, plugin);
+        });
+    }
+}
@@ -0,0 +1,24 @@
+package net.tcpshield.tcpshield.bukkit.paper.impl;
+
+import com.destroystokyo.paper.event.player.PlayerHandshakeEvent;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+
+public class PaperPacketImpl implements IPacket {
+
+    private final PlayerHandshakeEvent handshakeEvent;
+
+    public PaperPacketImpl(PlayerHandshakeEvent handshakeEvent) {
+        this.handshakeEvent = handshakeEvent;
+    }
+
+    @Override
+    public String getRawPayload() {
+        return handshakeEvent.getOriginalHandshake();
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) {
+        handshakeEvent.setCancelled(false);
+        handshakeEvent.setServerHostname(hostname);
+    }
+}
@@ -0,0 +1,33 @@
+package net.tcpshield.tcpshield.bukkit.paper.impl;
+
+import com.destroystokyo.paper.event.player.PlayerHandshakeEvent;
+import net.kyori.adventure.text.Component;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+
+import java.net.InetSocketAddress;
+
+public class PaperPlayerImpl implements IPlayer {
+
+    private final PlayerHandshakeEvent handshakeEvent;
+
+    public PaperPlayerImpl(PlayerHandshakeEvent handshakeEvent) {
+        this.handshakeEvent = handshakeEvent;
+    }
+
+    @Override
+    public String getIP() {
+        return handshakeEvent.getOriginalSocketAddressHostname();
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) {
+        handshakeEvent.setSocketAddressHostname(ip.getAddress().getHostAddress());
+    }
+
+    @Override
+    public void disconnect() {
+        handshakeEvent.setCancelled(false);
+        handshakeEvent.failMessage(Component.text("Connection failed. Please try again or contact an administrator."));
+        handshakeEvent.setFailed(true);
+    }
+}
@@ -0,0 +1,23 @@
+package net.tcpshield.tcpshield.bukkit.paper.impl;
+
+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+
+public class PaperServerListPacketImpl implements IPacket {
+
+    private final PaperServerListPingEvent pingEvent;
+
+    public PaperServerListPacketImpl(PaperServerListPingEvent pingEvent) {
+        this.pingEvent = pingEvent;
+    }
+
+    @Override
+    public String getRawPayload() {
+        return null;
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) {
+        pingEvent.setCancelled(false);
+    }
+}
@@ -0,0 +1,30 @@
+package net.tcpshield.tcpshield.bukkit.paper.impl;
+
+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+
+import java.net.InetSocketAddress;
+
+public class PaperServerListPingPlayerImpl implements IPlayer {
+
+    private final PaperServerListPingEvent pingEvent;
+
+    public PaperServerListPingPlayerImpl(PaperServerListPingEvent pingEvent) {
+        this.pingEvent = pingEvent;
+    }
+
+    @Override
+    public String getIP() {
+        return pingEvent.getAddress().getHostAddress();
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) {
+        // not necessary since this class is only for server list pings
+    }
+
+    @Override
+    public void disconnect() {
+        pingEvent.setCancelled(true);
+    }
+}
@@ -0,0 +1,30 @@
+package net.tcpshield.tcpshield.bukkit.protocollib;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketEvent;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.bukkit.protocollib.impl.ProtocolLibPacketImpl;
+import net.tcpshield.tcpshield.bukkit.protocollib.impl.ProtocolLibPlayerImpl;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class ProtocolLibHandshakePacketHandler extends PacketAdapter {
+
+    private final HandshakePacketHandler handshakePacketHandler;
+
+    public ProtocolLibHandshakePacketHandler(JavaPlugin plugin, HandshakePacketHandler handshakePacketHandler) {
+        super(plugin, ListenerPriority.LOWEST, PacketType.Handshake.Client.SET_PROTOCOL);
+        this.handshakePacketHandler = handshakePacketHandler;
+    }
+
+    @Override
+    public void onPacketReceiving(PacketEvent e) {
+        IPacket packet = new ProtocolLibPacketImpl(e.getPacket());
+        IPlayer player = new ProtocolLibPlayerImpl(e.getPlayer());
+
+        handshakePacketHandler.onHandshake(packet, player);
+    }
+}
@@ -0,0 +1,24 @@
+package net.tcpshield.tcpshield.bukkit.protocollib;
+
+import com.comphenix.protocol.ProtocolLibrary;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.bukkit.impl.BukkitConfigImpl;
+import net.tcpshield.tcpshield.geyser.GeyserUtils;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class TCPShieldProtocolLib {
+
+    private final JavaPlugin plugin;
+
+    public TCPShieldProtocolLib(JavaPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    public void load() {
+        HandshakePacketHandler handshakePacketHandler = new HandshakePacketHandler(plugin.getLogger(), new BukkitConfigImpl(plugin));
+        GeyserUtils.initGeyserOrDefault(handshakePacketHandler, () -> {
+            ProtocolLibHandshakePacketHandler packetHandler = new ProtocolLibHandshakePacketHandler(plugin, handshakePacketHandler);
+            ProtocolLibrary.getProtocolManager().addPacketListener(packetHandler);
+        });
+    }
+}
@@ -0,0 +1,25 @@
+package net.tcpshield.tcpshield.bukkit.protocollib.impl;
+
+import com.comphenix.protocol.events.PacketContainer;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+
+public class ProtocolLibPacketImpl implements IPacket {
+
+    private final PacketContainer packetContainer;
+    private final String rawPayload;
+
+    public ProtocolLibPacketImpl(PacketContainer packetContainer) {
+        this.packetContainer = packetContainer;
+        this.rawPayload = packetContainer.getStrings().read(0);
+    }
+
+    @Override
+    public String getRawPayload() {
+        return rawPayload;
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) {
+        packetContainer.getStrings().write(0, hostname);
+    }
+}
@@ -0,0 +1,64 @@
+package net.tcpshield.tcpshield.bukkit.protocollib.impl;
+
+import com.comphenix.protocol.injector.server.SocketInjector;
+import com.comphenix.protocol.injector.server.TemporaryPlayerFactory;
+import net.tcpshield.tcpshield.ReflectionUtils;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.exception.IPModificationFailureException;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+import org.bukkit.entity.Player;
+
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+
+public class ProtocolLibPlayerImpl implements IPlayer {
+
+    private static Class<?> abstractChannelClass;
+    private final Player player;
+    private String ip;
+
+    static {
+        try {
+            abstractChannelClass = Class.forName("io.netty.channel.AbstractChannel");
+        } catch (ClassNotFoundException e) {
+            try {
+                abstractChannelClass = Class.forName("net.minecraft.util.io.netty.channel.AbstractChannel");
+            } catch (ClassNotFoundException e2) {
+                throw new TCPShieldInitializationException(e2);
+            }
+        }
+    }
+
+    public ProtocolLibPlayerImpl(Player player) {
+        this.player = player;
+        this.ip = player.getAddress().getAddress().getHostAddress();
+    }
+
+    @Override
+    public String getIP() {
+        return ip;
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) throws IPModificationFailureException {
+        this.ip = ip.getAddress().getHostAddress();
+
+        try {
+            SocketInjector ignored = TemporaryPlayerFactory.getInjectorFromPlayer(player);
+            Object injector = ReflectionUtils.getObjectInPrivateField(ignored, "injector");
+            Object networkManager = ReflectionUtils.getObjectInPrivateField(injector, "networkManager");
+
+            ReflectionUtils.setFinalField(networkManager, ReflectionUtils.searchFieldByClass(networkManager.getClass(), SocketAddress.class), ip);
+
+            Object channel = ReflectionUtils.getObjectInPrivateField(injector, "originalChannel");
+            ReflectionUtils.setFinalField(channel, ReflectionUtils.getDeclaredField(abstractChannelClass, "remoteAddress"), ip);
+        } catch (Exception e) {
+            throw new IPModificationFailureException(e);
+        }
+    }
+
+    @Override
+    public void disconnect() {
+        player.kickPlayer("");
+    }
+}
@@ -0,0 +1,38 @@
+package net.tcpshield.tcpshield.bungee;
+
+import net.md_5.bungee.api.connection.PendingConnection;
+import net.md_5.bungee.api.event.PlayerHandshakeEvent;
+import net.md_5.bungee.api.event.ProxyPingEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.bungee.impl.BungeePacketImpl;
+import net.tcpshield.tcpshield.bungee.impl.BungeePlayerImpl;
+
+public class BungeeHandshakePacketHandler implements Listener {
+
+    private final HandshakePacketHandler handshakePacketHandler;
+
+    public BungeeHandshakePacketHandler(HandshakePacketHandler handshakePacketHandler) {
+        this.handshakePacketHandler = handshakePacketHandler;
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onProxyPingEvent(ProxyPingEvent e) {
+        PendingConnection connection = e.getConnection();
+        if (!connection.isLegacy()) return;
+
+        connection.disconnect();
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onPlayerHandshake(PlayerHandshakeEvent e) {
+        IPacket packet = new BungeePacketImpl(e.getHandshake(), e.getConnection());
+        IPlayer player = new BungeePlayerImpl(e.getConnection());
+
+        handshakePacketHandler.onHandshake(packet, player);
+    }
+}
@@ -0,0 +1,21 @@
+package net.tcpshield.tcpshield.bungee;
+
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.api.plugin.Plugin;
+import net.md_5.bungee.api.plugin.PluginManager;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.bungee.impl.BungeeConfigImpl;
+import net.tcpshield.tcpshield.geyser.GeyserUtils;
+
+public class TCPShieldBungee extends Plugin implements Listener {
+
+    @Override
+    public void onEnable() {
+        HandshakePacketHandler handshakePacketHandler = new HandshakePacketHandler(this.getLogger(), new BungeeConfigImpl(this));
+
+        GeyserUtils.initGeyserOrDefault(handshakePacketHandler, () -> {
+            PluginManager pluginManager = this.getProxy().getPluginManager();
+            pluginManager.registerListener(this, new BungeeHandshakePacketHandler(handshakePacketHandler));
+        });
+    }
+}
@@ -0,0 +1,58 @@
+package net.tcpshield.tcpshield.bungee.impl;
+
+import net.md_5.bungee.api.plugin.Plugin;
+import net.md_5.bungee.config.Configuration;
+import net.md_5.bungee.config.ConfigurationProvider;
+import net.md_5.bungee.config.YamlConfiguration;
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+
+public class BungeeConfigImpl extends TCPShieldConfig {
+
+    private final Plugin plugin;
+
+    public BungeeConfigImpl(Plugin plugin) {
+        this.plugin = plugin;
+
+        saveDefaultConfig();
+
+        Configuration config = loadConfig();
+        this.onlyProxy = config.getBoolean("only-allow-proxy-connections");
+        this.ipWhitelistFolder = new File(plugin.getDataFolder(), "ip-whitelist");
+        this.geyser = config.getBoolean("enable-geyser-compatibility");
+        this.debug = config.getBoolean("debug-mode");
+    }
+
+    private void saveDefaultConfig() {
+        File dataFolder = plugin.getDataFolder();
+        if (!dataFolder.exists()) dataFolder.mkdir();
+
+        File file = getConfigFile();
+        if (file.exists()) return;
+
+        try (InputStream in = plugin.getResourceAsStream("config.yml")) {
+            Files.copy(in, file.toPath());
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private File getConfigFile() {
+        File dataFolder = plugin.getDataFolder();
+        return new File(dataFolder, "config.yml");
+    }
+
+    private Configuration loadConfig() {
+        try {
+            ConfigurationProvider configProvider = ConfigurationProvider.getProvider(YamlConfiguration.class);
+            File configFile = getConfigFile();
+            return configProvider.load(configFile);
+        } catch (IOException e) {
+            throw new RuntimeException("Couldn't load config", e);
+        }
+    }
+}
@@ -0,0 +1,36 @@
+package net.tcpshield.tcpshield.bungee.impl;
+
+import net.md_5.bungee.api.connection.PendingConnection;
+import net.md_5.bungee.protocol.packet.Handshake;
+import net.tcpshield.tcpshield.ReflectionUtils;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+
+import java.net.InetSocketAddress;
+
+public class BungeePacketImpl implements IPacket {
+
+    private final Handshake handshake;
+    private final PendingConnection pendingConnection;
+
+    public BungeePacketImpl(Handshake handshake, PendingConnection pendingConnection) {
+        this.handshake = handshake;
+        this.pendingConnection = pendingConnection;
+    }
+
+    @Override
+    public String getRawPayload() {
+        return handshake.getHost();
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) throws Exception {
+        InetSocketAddress virtualHost = InetSocketAddress.createUnresolved(hostname, handshake.getPort());
+        try {
+            ReflectionUtils.setFinalField(pendingConnection, "virtualHost", virtualHost);
+        } catch (Exception ex) {
+            ReflectionUtils.setFinalField(pendingConnection, "vHost", virtualHost);
+        }
+
+        ReflectionUtils.setField(handshake, "host", hostname);
+    }
+}
@@ -0,0 +1,54 @@
+package net.tcpshield.tcpshield.bungee.impl;
+
+import io.netty.channel.AbstractChannel;
+import net.md_5.bungee.api.connection.PendingConnection;
+import net.tcpshield.tcpshield.ReflectionUtils;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.exception.IPModificationFailureException;
+
+import java.lang.reflect.Field;
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+
+public class BungeePlayerImpl implements IPlayer {
+
+    private final PendingConnection pendingConnection;
+    private String ip;
+
+    public BungeePlayerImpl(PendingConnection pendingConnection) {
+        this.pendingConnection = pendingConnection;
+        this.ip = pendingConnection.getAddress().getAddress().getHostAddress();
+    }
+
+    @Override
+    public String getIP() {
+        return ip;
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) throws IPModificationFailureException {
+        this.ip = ip.getAddress().getHostAddress();
+
+        try {
+            Object channelWrapper = ReflectionUtils.getObjectInPrivateField(pendingConnection, "ch");
+            Object channel = ReflectionUtils.getObjectInPrivateField(channelWrapper, "ch");
+
+            try {
+                Field socketAddressField = ReflectionUtils.searchFieldByClass(channelWrapper.getClass(), SocketAddress.class);
+                ReflectionUtils.setFinalField(channelWrapper, socketAddressField, ip);
+            } catch (IllegalArgumentException ignored) {
+                // Some BungeeCord versions, notably those on 1.7 (e.g. zBungeeCord) don't have an SocketAddress field in the ChannelWrapper class
+            }
+
+            ReflectionUtils.setFinalField(channel, ReflectionUtils.getPrivateField(AbstractChannel.class, "remoteAddress"), ip);
+            ReflectionUtils.setFinalField(channel, ReflectionUtils.getPrivateField(AbstractChannel.class, "localAddress"), ip);
+        } catch (Exception e) {
+            throw new IPModificationFailureException(e);
+        }
+    }
+
+    @Override
+    public void disconnect() {
+        pendingConnection.disconnect();
+    }
+}
@@ -0,0 +1,8 @@
+package net.tcpshield.tcpshield.exception;
+
+public class IPModificationFailureException extends Exception {
+
+    public IPModificationFailureException(Throwable cause) {
+        super(cause);
+    }
+}
@@ -0,0 +1,4 @@
+package net.tcpshield.tcpshield.exception;
+
+public class InvalidIPException extends SecurityException {
+}
@@ -0,0 +1,16 @@
+package net.tcpshield.tcpshield.exception;
+
+public class TCPShieldIPListUpdaterException extends RuntimeException {
+
+    public TCPShieldIPListUpdaterException(Throwable cause) {
+        super(cause);
+    }
+
+    public TCPShieldIPListUpdaterException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public TCPShieldIPListUpdaterException(String message) {
+        super(message);
+    }
+}
@@ -0,0 +1,12 @@
+package net.tcpshield.tcpshield.exception;
+
+public class TCPShieldInitializationException extends RuntimeException {
+
+    public TCPShieldInitializationException(Throwable cause) {
+        super(cause);
+    }
+
+    public TCPShieldInitializationException(String message) {
+        super(message);
+    }
+}
@@ -0,0 +1,18 @@
+package net.tcpshield.tcpshield.fabric;
+
+import net.fabricmc.api.ModInitializer;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.fabric.impl.FabricConfigImpl;
+
+import java.util.logging.Logger;
+
+public class TCPShieldFabric implements ModInitializer {
+
+    public static final Logger LOGGER = Logger.getLogger("TCPShield");
+    public static final HandshakePacketHandler PACKET_HANDLER =  new HandshakePacketHandler(LOGGER, new FabricConfigImpl());
+
+    @Override
+    public void onInitialize() {
+        LOGGER.info("TCPShield has been loaded.");
+    }
+}
@@ -0,0 +1,105 @@
+package net.tcpshield.tcpshield.fabric.impl;
+
+import net.fabricmc.loader.api.FabricLoader;
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+public class FabricConfigImpl extends TCPShieldConfig {
+
+    private final Path configLocation = new File(FabricLoader.getInstance().getConfigDir().toString(), "tcpshield.yml").toPath();
+
+    public FabricConfigImpl() {
+        if(!configExists()) {
+            createDefaultConfig();
+        }
+
+        ConfigData config = loadConfig();
+
+        this.onlyProxy = config.onlyAllowProxyConnections;
+        this.ipWhitelistFolder = new File(FabricLoader.getInstance().getGameDirectory(), "ip-whitelist");
+        this.geyser = false;
+        this.debug = config.debugMode;
+    }
+
+    /**
+     * @return  whether the file specified in {@link FabricConfigImpl#configLocation} exists.
+     */
+    private boolean configExists() {
+        return Files.exists(configLocation);
+    }
+
+    /**
+     * Creates the default configuration file at the location specified in {@link FabricConfigImpl#configLocation}.
+     *
+     * <p>
+     * This operation will always override an existing configuration file if it exists.
+     * Callers should check {@link FabricConfigImpl#configExists()} if they wish to avoid this behavior.
+     */
+    private void createDefaultConfig() {
+        // Ensure the parent directory of our config file exists.
+        // If it does not exist, attempt to create it now.
+        Path parentDirectory = configLocation.getParent();
+        if (!Files.exists(parentDirectory) || !Files.isDirectory(parentDirectory)) {
+            parentDirectory.toFile().mkdirs();
+        }
+
+        // Copy the config.yml data from our mod jar to the loader config folder.
+        try (InputStream in = getClass().getClassLoader().getResourceAsStream("config.yml")) {
+            Files.copy(in, configLocation);
+        } catch (Exception e) {
+            throw new TCPShieldInitializationException(e);
+        }
+    }
+
+    private ConfigData loadConfig() {
+        try {
+            List<String> strings = Files.readAllLines(configLocation);
+
+            boolean onlyAllowProxyConnections = true;
+            boolean debugMode = false;
+
+            // Rudimentary config parsing
+            for (String line : strings) {
+                String[] keyValue = line.split(": ");
+
+                // A config option will only be valid if it is in the format 'a: b'.
+                // Ensure that is the case now.
+                if (keyValue.length == 2) {
+                    String key = keyValue[0];
+                    String value = keyValue[1];
+
+                    switch (key) {
+                        case "only-allow-proxy-connections":
+                            onlyAllowProxyConnections = Boolean.parseBoolean(value);
+                            break;
+                        case "debug-mode":
+                            debugMode = Boolean.parseBoolean(value);
+                            break;
+                    }
+                }
+            }
+
+            return new ConfigData(onlyAllowProxyConnections, debugMode);
+        } catch (Exception e) {
+            throw new TCPShieldInitializationException("Couldn't load config in config/tclshield.yml!");
+        }
+    }
+
+    private static class ConfigData {
+
+        protected boolean onlyAllowProxyConnections;
+        protected boolean debugMode;
+
+        public ConfigData(boolean onlyAllowProxyConnections, boolean debugMode) {
+            this.onlyAllowProxyConnections = onlyAllowProxyConnections;
+            this.debugMode = debugMode;
+        }
+    }
+}
@@ -0,0 +1,24 @@
+package net.tcpshield.tcpshield.fabric.impl;
+
+import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.fabric.mixin.HandshakeC2SPacketAccessor;
+
+public class FabricPacketImpl implements IPacket {
+
+    private final HandshakeC2SPacket handshake;
+
+    public FabricPacketImpl(HandshakeC2SPacket handshake) {
+        this.handshake = handshake;
+    }
+
+    @Override
+    public String getRawPayload() {
+        return ((HandshakeC2SPacketAccessor) handshake).getAddress();
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) throws Exception {
+        // NO OPERATION
+    }
+}
@@ -0,0 +1,40 @@
+package net.tcpshield.tcpshield.fabric.impl;
+
+import net.minecraft.network.ClientConnection;
+import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
+import net.minecraft.network.packet.s2c.login.LoginDisconnectS2CPacket;
+import net.minecraft.text.LiteralText;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.exception.IPModificationFailureException;
+import net.tcpshield.tcpshield.fabric.mixin.ClientConnectionAccessor;
+
+import java.net.InetSocketAddress;
+
+public class FabricPlayerImpl implements IPlayer {
+
+    private final ClientConnection connection;
+    private String ip;
+
+    public FabricPlayerImpl(HandshakeC2SPacket packet, ClientConnection connection) {
+        this.connection = connection;
+        this.ip = ((InetSocketAddress) ((ClientConnectionAccessor) connection).getChannel().remoteAddress()).getAddress().getHostAddress();
+    }
+
+    @Override
+    public String getIP() {
+        return ip;
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) throws IPModificationFailureException {
+        // At this point, the IP/connection believe the player has the IP of TCPShield.
+        // The ip passed into this method contains their CORRECT data, which we have to assign to the player network connection.
+        ((ClientConnectionAccessor) connection).setAddress(ip);
+        this.ip = ((InetSocketAddress) ((ClientConnectionAccessor) connection).getChannel().remoteAddress()).getAddress().getHostAddress();
+    }
+
+    @Override
+    public void disconnect() {
+        connection.disconnect(new LiteralText("Connection failed. Please try again or contact an administrator."));
+    }
+}
@@ -0,0 +1,20 @@
+package net.tcpshield.tcpshield.fabric.mixin;
+
+import io.netty.channel.Channel;
+import net.minecraft.network.ClientConnection;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.net.SocketAddress;
+
+@Mixin(ClientConnection.class)
+public interface ClientConnectionAccessor {
+    @Accessor
+    void setAddress(SocketAddress address);
+
+    @Accessor
+    Channel getChannel();
+
+    @Accessor
+    SocketAddress getAddress();
+}
@@ -0,0 +1,11 @@
+package net.tcpshield.tcpshield.fabric.mixin;
+
+import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(HandshakeC2SPacket.class)
+public interface HandshakeC2SPacketAccessor {
+    @Accessor
+    String getAddress();
+}
@@ -0,0 +1,32 @@
+package net.tcpshield.tcpshield.fabric.mixin;
+
+import net.minecraft.network.ClientConnection;
+import net.minecraft.network.packet.c2s.handshake.HandshakeC2SPacket;
+import net.minecraft.server.network.ServerHandshakeNetworkHandler;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.fabric.TCPShieldFabric;
+import net.tcpshield.tcpshield.fabric.impl.FabricPacketImpl;
+import net.tcpshield.tcpshield.fabric.impl.FabricPlayerImpl;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ServerHandshakeNetworkHandler.class)
+public class ServerHandshakeMixin {
+
+    @Shadow @Final private ClientConnection connection;
+
+    @Inject(
+            method = "onHandshake",
+            at = @At("HEAD"))
+    private void onHandshake(HandshakeC2SPacket handshake, CallbackInfo ci) {
+        IPacket packet = new FabricPacketImpl(handshake);
+        IPlayer player = new FabricPlayerImpl(handshake, connection);
+
+        TCPShieldFabric.PACKET_HANDLER.onHandshake(packet, player);
+    }
+}
@@ -0,0 +1,29 @@
+package net.tcpshield.tcpshield.geyser;
+
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.geyser.impl.GeyserPacketImpl;
+import net.tcpshield.tcpshield.geyser.impl.GeyserPlayerImpl;
+import org.geysermc.floodgate.api.InstanceHolder;
+
+public class GeyserHandshakePacketHandler {
+
+    private final HandshakePacketHandler handshakePacketHandler;
+
+    public GeyserHandshakePacketHandler(HandshakePacketHandler handshakePacketHandler) {
+        this.handshakePacketHandler = handshakePacketHandler;
+    }
+
+    public void init() {
+        InstanceHolder.getHandshakeHandlers().addHandshakeHandler(data -> {
+            // In case the connection is a Bedrock connection, we don't bother
+            if (data.getBedrockData() != null) return;
+
+            IPlayer player = new GeyserPlayerImpl(data);
+            IPacket packet = new GeyserPacketImpl(data);
+
+            handshakePacketHandler.onHandshake(packet, player);
+        });
+    }
+}
@@ -0,0 +1,27 @@
+package net.tcpshield.tcpshield.geyser;
+
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+
+public class GeyserUtils {
+
+    public static void initGeyserOrDefault(HandshakePacketHandler handshakePacketHandler, Runnable registrar) {
+        if (!useGeyser(handshakePacketHandler.getConfig())) {
+            registrar.run();
+        } else {
+            GeyserHandshakePacketHandler geyserHandler = new GeyserHandshakePacketHandler(handshakePacketHandler);
+            geyserHandler.init();
+        }
+    }
+
+    private static boolean useGeyser(TCPShieldConfig config) {
+        if (!config.isGeyser()) return false;
+
+        try {
+            Class.forName("org.geysermc.floodgate.api.InstanceHolder");
+            return true;
+        } catch (ClassNotFoundException e) {
+            return false;
+        }
+    }
+}
@@ -0,0 +1,23 @@
+package net.tcpshield.tcpshield.geyser.impl;
+
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import org.geysermc.floodgate.api.handshake.HandshakeData;
+
+public class GeyserPacketImpl implements IPacket {
+
+    private final HandshakeData handshakeData;
+
+    public GeyserPacketImpl(HandshakeData handshakeData) {
+        this.handshakeData = handshakeData;
+    }
+
+    @Override
+    public String getRawPayload() {
+        return handshakeData.getHostname();
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) {
+        handshakeData.setHostname(hostname);
+    }
+}
@@ -0,0 +1,30 @@
+package net.tcpshield.tcpshield.geyser.impl;
+
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import org.geysermc.floodgate.api.handshake.HandshakeData;
+
+import java.net.InetSocketAddress;
+
+public class GeyserPlayerImpl implements IPlayer {
+
+    private final HandshakeData handshakeData;
+
+    public GeyserPlayerImpl(HandshakeData handshakeData) {
+        this.handshakeData = handshakeData;
+    }
+
+    @Override
+    public String getIP() {
+        return ((InetSocketAddress) handshakeData.getChannel().remoteAddress()).getAddress().getHostAddress();
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) {
+        handshakeData.setIp(ip.getAddress().getHostAddress());
+    }
+
+    @Override
+    public void disconnect() {
+        handshakeData.getChannel().close();
+    }
+}
@@ -0,0 +1,24 @@
+package net.tcpshield.tcpshield.validation;
+
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.TimeUnit;
+
+public class IPListAutoUpdater {
+
+    private final IPListUpdater ipListUpdater;
+
+    public IPListAutoUpdater(IPListUpdater ipListUpdater) {
+        this.ipListUpdater = ipListUpdater;
+    }
+
+    public void init() {
+        new Timer().scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                ipListUpdater.update();
+            }
+        }, TimeUnit.HOURS.toMillis(12), TimeUnit.HOURS.toMillis(12));
+    }
+
+}
@@ -0,0 +1,80 @@
+package net.tcpshield.tcpshield.validation;
+
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+import net.tcpshield.tcpshield.exception.TCPShieldIPListUpdaterException;
+import net.tcpshield.tcpshield.validation.cidr.CIDRMatcher;
+
+import javax.net.ssl.HttpsURLConnection;
+import java.io.*;
+import java.net.URL;
+import java.util.logging.Logger;
+import java.util.stream.Collectors;
+
+public class IPListUpdater {
+
+    private final TCPShieldConfig config;
+    private final IPValidation ipValidation;
+    private final Logger logger;
+
+    public IPListUpdater(TCPShieldConfig config, IPValidation ipValidation, Logger logger) {
+        this.config = config;
+        this.ipValidation = ipValidation;
+        this.logger = logger;
+    }
+
+    public void update() {
+        try {
+            String ipList = getIPList();
+
+            File ipWhitelistFolder = config.getIPWhitelistFolder();
+            File tcpShieldIPList = new File(ipWhitelistFolder, "tcpshield-ips.list");
+
+            if (tcpShieldIPList.createNewFile()) {
+                logger.info("Fetched updated IP Whitelist from https://tcpshield.com/v4/");
+            }
+
+            try (FileWriter writer = new FileWriter(tcpShieldIPList, false)) {
+                writer.write(ipList);
+            }
+
+            ipValidation.readIPWhitelist();
+        } catch (Exception e) {
+            throw new TCPShieldIPListUpdaterException(e);
+        }
+    }
+
+    public String getIPList() throws IOException {
+        URL url = new URL("https://tcpshield.com/v4/");
+
+        HttpsURLConnection connection = null;
+        try {
+            connection = (HttpsURLConnection) url.openConnection();
+
+            try (InputStream inputStream = connection.getInputStream();
+                 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream))) {
+                int responseCode = connection.getResponseCode();
+                if (responseCode != 200)
+                    throw new TCPShieldIPListUpdaterException("https://tcpshield.com/v4/ did not return status code 200: " + responseCode);
+
+                String data = bufferedReader.lines()
+                        .filter(str -> !str.isEmpty())
+                        .peek(cidr -> {  // checks for validity of each CIDR entry
+                            try {
+                                new CIDRMatcher(cidr);
+                            } catch (Exception e) {
+                                throw new TCPShieldIPListUpdaterException("https://tcpshield.com/v4/ returned a faulty CIDR entry: " + cidr, e);
+                            }
+                        })
+                        .collect(Collectors.joining("\n"));
+
+                if (data.isEmpty())
+                    throw new TCPShieldIPListUpdaterException("Response from https://tcpshield.com/v4/ empty");
+
+                return data;
+            }
+        } finally {
+            if (connection != null)
+                connection.disconnect();
+        }
+    }
+}
@@ -0,0 +1,69 @@
+package net.tcpshield.tcpshield.validation;
+
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+import net.tcpshield.tcpshield.validation.cidr.CIDRChecker;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.Scanner;
+import java.util.logging.Logger;
+
+public class IPValidation {
+
+    private final TCPShieldConfig config;
+    private final IPListUpdater ipListUpdater;
+    private final CIDRChecker cidrChecker;
+
+    private List<String> ipWhitelist = new ArrayList<>();
+
+    public IPValidation(TCPShieldConfig config, Logger logger) {
+        this.config = config;
+        this.ipListUpdater = new IPListUpdater(config, this, logger);
+        new IPListAutoUpdater(ipListUpdater).init();
+
+        checkIPList();
+
+        try {
+            readIPWhitelist();
+            this.cidrChecker = new CIDRChecker(ipWhitelist);
+        } catch (IOException e) {
+            throw new TCPShieldInitializationException(e);
+        }
+    }
+
+    public boolean validateIP(InetAddress inetAddress) {
+        return cidrChecker.check(inetAddress);
+    }
+
+    private List<String> getIPWhitelist() throws IOException {
+        List<String> ipWhitelist = new ArrayList<>();
+
+        for (File file : Objects.requireNonNull(config.getIPWhitelistFolder().listFiles())) {
+            if (file.isDirectory()) continue;
+
+            try (Scanner scanner = new Scanner(file)) {
+                while (scanner.hasNextLine()) {
+                    String cidrEntry = scanner.nextLine();
+                    ipWhitelist.add(cidrEntry);
+                }
+            }
+        }
+
+        return ipWhitelist;
+    }
+
+    public void readIPWhitelist() throws IOException {
+        this.ipWhitelist = getIPWhitelist();
+    }
+
+    private void checkIPList() {
+        if (config.getIPWhitelistFolder().mkdirs()) {
+            ipListUpdater.update();
+        }
+    }
+}
@@ -0,0 +1,38 @@
+package net.tcpshield.tcpshield.validation.cidr;
+
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class CIDRChecker {
+
+    private final List<CIDRMatcher> cidrMatchers = new ArrayList<>();
+    private final Set<String> cache = new HashSet<>(); // quick cache for already verified IPs; HashSet is O(1) on HashSet#contains() operations
+
+    public CIDRChecker(List<String> cidrList) {
+        for (String cidr : cidrList) {
+            CIDRMatcher cidrMatcher = new CIDRMatcher(cidr);
+            cidrMatchers.add(cidrMatcher);
+        }
+    }
+
+    public boolean check(InetAddress inetAddress) {
+        String ip = inetAddress.getHostAddress();
+        if (cache.contains(ip)) return true;
+
+        if (!checkUncached(inetAddress)) return false;
+
+        cache.add(ip);
+        return true;
+    }
+
+    private boolean checkUncached(InetAddress inetAddress) {
+        for (CIDRMatcher cidrMatcher : cidrMatchers) {
+            if (cidrMatcher.matches(inetAddress)) return true;
+        }
+
+        return false;
+    }
+}
@@ -0,0 +1,59 @@
+package net.tcpshield.tcpshield.validation.cidr;
+
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+public class CIDRMatcher {
+
+    private final int maskBits;
+    private final int maskBytes;
+    private final boolean simpleCIDR;
+    private final InetAddress cidrAddress;
+
+    public CIDRMatcher(String ipAddress) {
+        String[] split = ipAddress.split("/");
+
+        String parsedIPAddress;
+        if (split.length >= 2) {
+            parsedIPAddress = split[0];
+
+            this.maskBits = Integer.parseInt(split[1]);
+            this.simpleCIDR = maskBits == 32;
+        } else {
+            parsedIPAddress = ipAddress;
+
+            this.maskBits = -1;
+            this.simpleCIDR = true;
+        }
+
+        this.maskBytes = simpleCIDR ? -1 : maskBits / 8;
+
+        try {
+            cidrAddress = InetAddress.getByName(parsedIPAddress);
+        } catch (UnknownHostException e) {
+            throw new TCPShieldInitializationException(e);
+        }
+    }
+
+    public boolean matches(InetAddress inetAddress) {
+        if (!cidrAddress.getClass().equals(inetAddress.getClass())) return false; // check if IP is IPv4 or IPv6
+
+        if (simpleCIDR) return inetAddress.equals(cidrAddress); // check for equality if it's a simple CIDR
+
+        byte[] inetAddressBytes = inetAddress.getAddress();
+        byte[] requiredAddressBytes = cidrAddress.getAddress();
+
+        byte finalByte = (byte) (0xFF00 >> (maskBits & 0x07));
+
+        for (int i = 0; i < maskBytes; i++) {
+            if (inetAddressBytes[i] != requiredAddressBytes[i]) return false;
+        }
+
+        if (finalByte != 0)
+            return (inetAddressBytes[maskBytes] & finalByte) == (requiredAddressBytes[maskBytes] & finalByte);
+
+        return true;
+    }
+}
@@ -0,0 +1,39 @@
+package net.tcpshield.tcpshield.velocity;
+
+import com.google.inject.Inject;
+import com.velocitypowered.api.event.Subscribe;
+import com.velocitypowered.api.event.proxy.ProxyInitializeEvent;
+import com.velocitypowered.api.plugin.Plugin;
+import com.velocitypowered.api.plugin.annotation.DataDirectory;
+import com.velocitypowered.api.proxy.ProxyServer;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.geyser.GeyserUtils;
+import net.tcpshield.tcpshield.velocity.impl.VelocityConfigImpl;
+
+import java.nio.file.Path;
+import java.util.logging.Logger;
+
+@Plugin(id = "tcpshield",
+        name = "TCPShield",
+        description = "TCPShield IP parsing capabilities for Velocity"
+)
+public class TCPShieldVelocity {
+
+    private final ProxyServer server;
+    private final Logger logger;
+    private final Path dataFolder;
+
+    @Inject
+    public TCPShieldVelocity(ProxyServer server, Logger logger, @DataDirectory Path dataFolder) {
+        this.server = server;
+        this.logger = logger;
+        this.dataFolder = dataFolder;
+    }
+
+    @Subscribe
+    public void onProxyInitialization(ProxyInitializeEvent e) {
+        HandshakePacketHandler handshakePacketHandler = new HandshakePacketHandler(this.logger, new VelocityConfigImpl(dataFolder.toFile()));
+
+        GeyserUtils.initGeyserOrDefault(handshakePacketHandler, () -> server.getEventManager().register(this, new VelocityHandshakePacketHandler(handshakePacketHandler)));
+    }
+}
@@ -0,0 +1,44 @@
+package net.tcpshield.tcpshield.velocity;
+
+import com.velocitypowered.api.event.PostOrder;
+import com.velocitypowered.api.event.Subscribe;
+import com.velocitypowered.api.event.connection.ConnectionHandshakeEvent;
+import com.velocitypowered.api.event.proxy.ProxyPingEvent;
+import com.velocitypowered.api.proxy.InboundConnection;
+import net.tcpshield.tcpshield.HandshakePacketHandler;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.velocity.impl.VelocityPacketImpl;
+import net.tcpshield.tcpshield.velocity.impl.VelocityPlayerImpl;
+
+public class VelocityHandshakePacketHandler {
+
+    private final HandshakePacketHandler handshakePacketHandler;
+
+    public VelocityHandshakePacketHandler(HandshakePacketHandler handshakePacketHandler) {
+        this.handshakePacketHandler = handshakePacketHandler;
+    }
+
+    @Subscribe(order = PostOrder.FIRST)
+    public void onHandshake(ConnectionHandshakeEvent e) {
+        InboundConnection connection = e.getConnection();
+        handleEvent(connection);
+    }
+
+    @Subscribe(order = PostOrder.FIRST)
+    public void onProxyPing(ProxyPingEvent e) {
+        InboundConnection connection = e.getConnection();
+        handleEvent(connection);
+    }
+
+    private void handleEvent(InboundConnection connection) {
+        VelocityPlayerImpl player = new VelocityPlayerImpl(connection);
+        if (player.isLegacy()) {
+            player.disconnect();
+            return;
+        }
+
+        IPacket packet = new VelocityPacketImpl(connection);
+
+        handshakePacketHandler.onHandshake(packet, player);
+    }
+}
@@ -0,0 +1,46 @@
+package net.tcpshield.tcpshield.velocity.impl;
+
+import com.moandjiezana.toml.Toml;
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+
+public class VelocityConfigImpl extends TCPShieldConfig {
+
+    private final File dataFolder;
+    private final File file;
+
+    public VelocityConfigImpl(File dataFolder) {
+        this.dataFolder = dataFolder;
+        this.file = new File(this.dataFolder, "config.toml");
+
+        saveDefaultConfig();
+        Toml toml = loadConfig();
+        this.onlyProxy = toml.getBoolean("only-allow-proxy-connections");
+        this.ipWhitelistFolder = new File(dataFolder, "ip-whitelist");
+        this.geyser = toml.getBoolean("enable-geyser-compatibility");
+        this.debug = toml.getBoolean("debug-mode");
+    }
+
+    private void saveDefaultConfig() {
+        if (!dataFolder.exists()) dataFolder.mkdir();
+        if (file.exists()) return;
+
+        try (InputStream in = VelocityConfigImpl.class.getResourceAsStream("/config.toml")) {
+            Files.copy(in, file.toPath());
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private File getConfigFile() {
+        return new File(dataFolder, "config.toml");
+    }
+
+    private Toml loadConfig() {
+        return new Toml().read(getConfigFile());
+    }
+}
@@ -0,0 +1,72 @@
+package net.tcpshield.tcpshield.velocity.impl;
+
+import com.velocitypowered.api.proxy.InboundConnection;
+import net.tcpshield.tcpshield.ReflectionUtils;
+import net.tcpshield.tcpshield.abstraction.IPacket;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+
+import java.lang.reflect.Field;
+
+public class VelocityPacketImpl implements IPacket {
+
+    private static final Field HANDSHAKE_FIELD;
+    private static final Field HOSTNAME_FIELD;
+    private static final Field CLEANED_ADDRESS_FIELD;
+
+    static {
+        try {
+            Class<?> inboundConnection = Class.forName("com.velocitypowered.proxy.connection.client.InitialInboundConnection");
+
+            HANDSHAKE_FIELD = ReflectionUtils.getPrivateField(inboundConnection, "handshake");
+            HOSTNAME_FIELD = ReflectionUtils.getPrivateField(Class.forName("com.velocitypowered.proxy.protocol.packet.Handshake"), "serverAddress");
+            CLEANED_ADDRESS_FIELD = ReflectionUtils.getPrivateField(inboundConnection, "cleanedAddress");
+        } catch (NoSuchFieldException | ClassNotFoundException e) {
+            throw new TCPShieldInitializationException(e);
+        }
+    }
+
+    private final InboundConnection inboundConnection;
+    private final String rawPayload;
+
+    public VelocityPacketImpl(InboundConnection inboundConnection) {
+        this.inboundConnection = inboundConnection;
+        try {
+            this.rawPayload = (String) HOSTNAME_FIELD.get(HANDSHAKE_FIELD.get(inboundConnection));
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e); // pass on
+        }
+    }
+
+    @Override
+    public String getRawPayload() {
+        return rawPayload;
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) throws Exception {
+        ReflectionUtils.setFinalField(inboundConnection, CLEANED_ADDRESS_FIELD, cleanAddress(hostname));
+
+        Object handshake = HANDSHAKE_FIELD.get(inboundConnection);
+        HOSTNAME_FIELD.set(handshake, hostname);
+    }
+
+    /**
+     * Adapted from https://github.com/VelocityPowered/Velocity/blob/17e6944daea8130e03903ccdfbf63f111c573849/proxy/src/main/java/com/velocitypowered/proxy/connection/client/HandshakeSessionHandler.java
+     */
+    private String cleanAddress(String hostname) {
+        // Clean out any anything after any zero bytes (this includes BungeeCord forwarding and the
+        // legacy Forge handshake indicator).
+        String cleaned = hostname;
+        int zeroIdx = cleaned.indexOf('\0');
+        if (zeroIdx > -1) {
+            cleaned = hostname.substring(0, zeroIdx);
+        }
+
+        // If we connect through an SRV record, there will be a period at the end (DNS usually elides
+        // this ending octet).
+        if (!cleaned.isEmpty() && cleaned.charAt(cleaned.length() - 1) == '.') {
+            cleaned = cleaned.substring(0, cleaned.length() - 1);
+        }
+        return cleaned;
+    }
+}
@@ -0,0 +1,76 @@
+package net.tcpshield.tcpshield.velocity.impl;
+
+import com.velocitypowered.api.proxy.InboundConnection;
+import net.tcpshield.tcpshield.ReflectionUtils;
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+import net.tcpshield.tcpshield.exception.IPModificationFailureException;
+import net.tcpshield.tcpshield.exception.TCPShieldInitializationException;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.net.InetSocketAddress;
+
+public class VelocityPlayerImpl implements IPlayer {
+
+    private static final Class<?> INITIAL_INBOUND_CONNECTION_CLASS;
+    private static final Field MINECRAFT_CONNECTION_FIELD;
+    private static final Field LEGACY_MINECRAFT_CONNECTION_FIELD;
+    private static final Field REMOTE_ADDRESS_FIELD;
+    private static final Method CLOSE_CHANNEL_METHOD;
+
+    static {
+        try {
+            INITIAL_INBOUND_CONNECTION_CLASS = Class.forName("com.velocitypowered.proxy.connection.client.InitialInboundConnection");
+            MINECRAFT_CONNECTION_FIELD = ReflectionUtils.getPrivateField(INITIAL_INBOUND_CONNECTION_CLASS, "connection");
+            LEGACY_MINECRAFT_CONNECTION_FIELD = ReflectionUtils.getPrivateField(Class.forName("com.velocitypowered.proxy.connection.client.HandshakeSessionHandler$LegacyInboundConnection"), "connection");
+
+            Class<?> minecraftConnection = Class.forName("com.velocitypowered.proxy.connection.MinecraftConnection");
+            REMOTE_ADDRESS_FIELD = ReflectionUtils.getPrivateField(minecraftConnection, "remoteAddress");
+            CLOSE_CHANNEL_METHOD = minecraftConnection.getMethod("close");
+        } catch (NoSuchFieldException | ClassNotFoundException | NoSuchMethodException e) {
+            throw new TCPShieldInitializationException(e);
+        }
+    }
+
+    private final InboundConnection inboundConnection;
+    private final boolean legacy;
+    private String ip;
+
+    public VelocityPlayerImpl(InboundConnection inboundConnection) {
+        this.inboundConnection = inboundConnection;
+        this.legacy = inboundConnection.getClass() != INITIAL_INBOUND_CONNECTION_CLASS;
+        this.ip = inboundConnection.getRemoteAddress().getAddress().getHostAddress();
+    }
+
+    @Override
+    public String getIP() {
+        return ip;
+    }
+
+    public boolean isLegacy() {
+        return legacy;
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) throws IPModificationFailureException {
+        this.ip = ip.getAddress().getHostAddress();
+
+        try {
+            Object minecraftConnection = MINECRAFT_CONNECTION_FIELD.get(inboundConnection);
+            REMOTE_ADDRESS_FIELD.set(minecraftConnection, ip);
+        } catch (Exception e) {
+            throw new IPModificationFailureException(e);
+        }
+    }
+
+    @Override
+    public void disconnect() {
+        try {
+            Object minecraftConnection = legacy ? LEGACY_MINECRAFT_CONNECTION_FIELD.get(inboundConnection) : MINECRAFT_CONNECTION_FIELD.get(inboundConnection);
+
+            CLOSE_CHANNEL_METHOD.invoke(minecraftConnection);
+        } catch (Exception e) {
+            throw new RuntimeException(e); // pass exception on
+        }
+    }
+}
@@ -1,4 +1,6 @@
 name: TCPShield
-version: 1.7
-main: net.tcpshield.realip.TCPShieldBungee
-author: 'https://tcpshield.com'
+version: '2.5'
+main: net.tcpshield.tcpshield.bungee.TCPShieldBungee
+author: https://tcpshield.com
+softDepends:
+- floodgate
@@ -0,0 +1,8 @@
+# Please keep this as true in while using TCPShield!
+only-allow-proxy-connections = true
+
+# Only set this to true in case you're using TCPShield's Geyser proxy!
+enable-geyser-compatibility = false
+
+# Turn on to diagnose connection issues
+debug-mode = false
@@ -1,5 +1,8 @@
 # Please keep this as true in while using TCPShield!
 only-allow-proxy-connections: true

+# Only set this to true in case you're using TCPShield's Geyser proxy!
+enable-geyser-compatibility: false
+
 # Turn on to diagnose connection issues
 debug-mode: false
@@ -0,0 +1,27 @@
+{
+  "schemaVersion": 1,
+  "id": "tcp-shield",
+  "version": "2.5",
+  "name": "TCPShield",
+  "description": "TCPShield IP parsing capabilities for Fabric",
+  "authors": [
+    "TCPShield"
+  ],
+  "contact": {
+    "homepage": "https://tcpshield.com"
+  },
+  "license": "MIT",
+  "environment": "*",
+  "entrypoints": {
+    "main": [
+      "net.tcpshield.tcpshield.fabric.TCPShieldFabric"
+    ]
+  },
+  "mixins": [
+    "tcpshield.mixins.json"
+  ],
+  "depends": {
+    "fabricloader": "*",
+    "minecraft": "*"
+  }
+}
@@ -1,5 +1,8 @@
 name: TCPShield
-version: 1.7
-main: net.tcpshield.realip.TCPShieldBukkit
-depend: ['ProtocolLib']
-author: 'https://tcpshield.com'
+version: '2.5'
+main: net.tcpshield.tcpshield.bukkit.TCPShieldBukkit
+softdepend:
+- ProtocolLib
+- floodgate
+author: https://tcpshield.com
+api-version: 1.16
@@ -0,0 +1,14 @@
+{
+  "required": true,
+  "minVersion": "0.8",
+  "package": "net.tcpshield.tcpshield.fabric.mixin",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": [
+    "ClientConnectionAccessor",
+    "HandshakeC2SPacketAccessor",
+    "ServerHandshakeMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}
@@ -0,0 +1,16 @@
+{
+  "id": "tcpshield",
+  "name": "TCPShield",
+  "version": "2.5",
+  "description": "TCPShield IP parsing capabilities for Velocity",
+  "authors": [
+    "TCPShield"
+  ],
+  "dependencies": [
+    {
+      "id": "floodgate",
+      "optional": true
+    }
+  ],
+  "main": "net.tcpshield.tcpshield.velocity.TCPShieldVelocity"
+}
@@ -0,0 +1,55 @@
+package net.tcpshield.tcpshield;
+
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+import net.tcpshield.tcpshield.impl.TestConfigImpl;
+import net.tcpshield.tcpshield.impl.TestPacketImpl;
+import net.tcpshield.tcpshield.impl.TestPlayerImpl;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.logging.Logger;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+public class HandshakePacketHandlerTest {
+
+    private final TCPShieldConfig defaultTestConfig = new TestConfigImpl();
+    private final HandshakePacketHandler standardHandshakePacketHandler = new HandshakePacketHandler(Logger.getLogger("TCPShield"), defaultTestConfig);
+    private TestPlayerImpl player;
+
+    @BeforeEach
+    public void setUp() {
+        player = new TestPlayerImpl(TestConstants.VALID_IP);
+    }
+
+    @Test
+    public void testSuccessfulHandshake() {
+        TestPacketImpl packet = new TestPacketImpl(TestConstants.VALID_PAYLOAD, TestConstants.STANDARD_HOSTNAME);
+
+        standardHandshakePacketHandler.onHandshake(packet, player);
+
+        assertEquals(TestConstants.PAYLOAD_HOSTNAME, packet.getHostname());
+        assertEquals(TestConstants.PAYLOAD_IP, player.getIP());
+    }
+
+    @Test
+    public void testSuccessfulFMLTaggedHandshake() {
+        TestPacketImpl packet = new TestPacketImpl(TestConstants.VALID_PAYLOAD_INVALID_TIMESTAMP_FML_TAGGED, TestConstants.STANDARD_HOSTNAME);
+
+        standardHandshakePacketHandler.onHandshake(packet, player);
+
+        assertEquals(TestConstants.PAYLOAD_FML_HOSTNAME, packet.getHostname());
+        assertEquals(TestConstants.PAYLOAD_IP, player.getIP());
+    }
+
+    @Test
+    public void testUnsuccessfulHandshakeInvalidIP() {
+        TestPacketImpl packet = new TestPacketImpl(TestConstants.VALID_PAYLOAD, TestConstants.STANDARD_HOSTNAME);
+
+        TestPlayerImpl player = new TestPlayerImpl(TestConstants.INVALID_IP);
+        standardHandshakePacketHandler.onHandshake(packet, player);
+
+        assertFalse(player.isConnected());
+    }
+}
@@ -0,0 +1,102 @@
+package net.tcpshield.tcpshield;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.lang.reflect.Field;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ReflectionUtilsTest {
+
+    private static final String MODIFIED = "modified";
+    private static final String ORIGINAL = "original";
+    private ReflectionUtilsTestObject testObject;
+
+    @BeforeEach
+    public void resetTestObject() {
+        testObject = new ReflectionUtilsTestObject(ORIGINAL);
+    }
+
+    @Test
+    public void testSetPublicField() throws NoSuchFieldException, IllegalAccessException {
+        ReflectionUtils.setField(testObject, "publicString", MODIFIED);
+        assertEquals(MODIFIED, testObject.getPublicString());
+    }
+
+    @Test
+    public void testSetPrivateField() throws NoSuchFieldException, IllegalAccessException {
+        ReflectionUtils.setField(testObject, "privateString", MODIFIED);
+        assertEquals(MODIFIED, testObject.getPrivateString());
+    }
+
+    @Test
+    public void testSetPublicFinalField() throws NoSuchFieldException, IllegalAccessException {
+        ReflectionUtils.setFinalField(testObject, "publicFinalString", MODIFIED);
+        assertEquals(MODIFIED, testObject.getPublicFinalString());
+    }
+
+    @Test
+    public void testSetPrivateFinalField() throws NoSuchFieldException, IllegalAccessException {
+        ReflectionUtils.setFinalField(testObject, "privateFinalString", MODIFIED);
+        assertEquals(MODIFIED, testObject.getPrivateFinalString());
+    }
+
+    @Test
+    public void testSearchFieldByClass() {
+        Field field = ReflectionUtils.searchFieldByClass(ReflectionUtilsTest.class, ReflectionUtilsTestObject.class);
+        assertEquals("testObject", field.getName());
+    }
+
+    @Test
+    public void testSearchFieldByNonExistentClass() {
+        Assertions.assertThrows(IllegalArgumentException.class, () -> ReflectionUtils.searchFieldByClass(ReflectionUtilsTest.class, byte.class));
+    }
+
+    @Test
+    public void testGetObjectInPrivateField() throws NoSuchFieldException, IllegalAccessException {
+        String privateField = (String) ReflectionUtils.getObjectInPrivateField(testObject, "privateString");
+        assertEquals(ORIGINAL, privateField);
+    }
+
+    public static class ReflectionUtilsTestObject {
+
+        public final String publicFinalString;
+        private final String privateFinalString;
+        public String publicString;
+        private String privateString;
+
+        public ReflectionUtilsTestObject(String str) {
+            this.publicFinalString = str;
+            this.privateFinalString = str;
+            this.publicString = str;
+            this.privateString = str;
+        }
+
+        public String getPublicFinalString() {
+            return publicFinalString;
+        }
+
+        public String getPrivateFinalString() {
+            return privateFinalString;
+        }
+
+        public String getPublicString() {
+            return publicString;
+        }
+
+        public void setPublicString(String publicString) {
+            this.publicString = publicString;
+        }
+
+        public String getPrivateString() {
+            return privateString;
+        }
+
+        public void setPrivateString(String privateString) {
+            this.privateString = privateString;
+        }
+    }
+
+}
@@ -0,0 +1,17 @@
+package net.tcpshield.tcpshield;
+
+public class TestConstants {
+
+    public static final String STANDARD_HOSTNAME = "example.org";
+
+    public static final String VALID_IP = "51.161.19.224";
+    public static final String INVALID_IP = "1.1.1.1";
+
+    public static final String PAYLOAD_HOSTNAME = "homeserver.fuzzlemann.de";
+    public static final String PAYLOAD_FML_HOSTNAME = "homeserver.fuzzlemann.de\0FML\0";
+    public static final String PAYLOAD_IP = "79.227.33.179";
+
+    public static final String VALID_PAYLOAD = "homeserver.fuzzlemann.de///79.227.33.179:53462///1589573485///MGQCMHFac1If9Y8vGAkZMTVapmC6l4M7EfD0YJ0b3pQy73IFjEPsOQn+yxp9lAKSZz7X3AIwGJ2rSxGu4JvlW5sm0pyzqUrc6mfd0xHUWC9JkusrSBSKDfiFV7TCmSZc0gGivgTs";
+    public static final String VALID_PAYLOAD_INVALID_TIMESTAMP_FML_TAGGED = VALID_PAYLOAD + "\0FML\0";
+
+}
@@ -0,0 +1,14 @@
+package net.tcpshield.tcpshield.impl;
+
+import net.tcpshield.tcpshield.abstraction.TCPShieldConfig;
+
+import java.io.File;
+
+public class TestConfigImpl extends TCPShieldConfig {
+
+    public TestConfigImpl() {
+        this.ipWhitelistFolder = new File("ip-whitelist");
+        this.debug = true;
+        this.onlyProxy = true;
+    }
+}
@@ -0,0 +1,28 @@
+package net.tcpshield.tcpshield.impl;
+
+import net.tcpshield.tcpshield.abstraction.IPacket;
+
+public class TestPacketImpl implements IPacket {
+
+    private final String payload;
+    private String hostname;
+
+    public TestPacketImpl(String payload, String hostname) {
+        this.payload = payload;
+        this.hostname = hostname;
+    }
+
+    @Override
+    public String getRawPayload() {
+        return payload;
+    }
+
+    @Override
+    public void modifyOriginalPacket(String hostname) {
+        this.hostname = hostname;
+    }
+
+    public String getHostname() {
+        return hostname;
+    }
+}
@@ -0,0 +1,43 @@
+package net.tcpshield.tcpshield.impl;
+
+import net.tcpshield.tcpshield.abstraction.IPlayer;
+
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.UnknownHostException;
+
+public class TestPlayerImpl implements IPlayer {
+
+    private InetAddress ip;
+    private boolean connected;
+
+    public TestPlayerImpl(String ip) {
+        this.connected = true;
+        try {
+            this.ip = InetAddress.getByName(ip);
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public String getIP() {
+        if (ip == null) return "ip";
+
+        return ip.getHostAddress();
+    }
+
+    @Override
+    public void setIP(InetSocketAddress ip) {
+        this.ip = ip.getAddress();
+    }
+
+    @Override
+    public void disconnect() {
+        connected = false;
+    }
+
+    public boolean isConnected() {
+        return connected;
+    }
+}
Author	SHA1	Message	Date
Draylar	740e648b92	TCPShield Fabric support (#40 ) Adds Fabric support (huge, huge thanks to @Draylar)	2021-03-09 18:35:31 +01:00
Paul Zhang	dd51276790	Updates outdated docs link	2021-02-27 16:21:33 +01:00
Paul Zhang	8f88b928e8	Update README.md	2021-02-27 16:20:44 +01:00
Paul Zhang	5b76160f78	Finish Paper native support	2021-02-27 16:12:57 +01:00
Paul Zhang	d872880ede	Remove IPlayer#getUUID and IPlayer#getName and their corresponding implementations because these informations aren't available at this state yet	2021-02-25 19:18:26 +01:00
Paul Zhang	07b80c0cfa	remove debug message	2021-02-25 19:14:47 +01:00
Paul Zhang	f567b6add3	Version bump yml + toml changes + the floodgate 2.0 jar	2021-02-25 19:13:13 +01:00
Paul Zhang	a1654ea9af	Bump version to 2.5	2021-02-25 18:47:49 +01:00
Paul Zhang	7b4543e744	Update Floodgate	2021-02-25 18:47:16 +01:00
Paul Zhang	c9d088c0d0	Rough implementation of Geyser support. It only supports Floodgate 2.0 in conjunction with @mikroskreem's PROXY v2 PR. !It's not yet working properly!	2021-02-25 18:45:21 +01:00
Paul Zhang	b215435e03	Finish Geyser support	2021-02-25 18:13:32 +01:00
Paul Zhang	10d78caa56	Paper x Geyser	2021-02-25 14:48:56 +01:00
Paul Zhang	4b6aaf573f	Revert "Removes Paper native support" This reverts commit `d3dd1d7a20`.	2021-02-25 14:22:21 +01:00
Paul Zhang	d3dd1d7a20	Removes Paper native support	2021-02-25 14:21:10 +01:00
Paul Zhang	b80369562e	Rough implementation of Geyser support. It only supports Floodgate 2.0 in conjunction with @mikroskreem's PROXY v2 PR. !It's not yet working properly!	2021-02-25 14:21:04 +01:00
Paul Zhang	44715187c4	fixes spelling mistake	2021-02-25 13:31:03 +01:00
Paul Zhang	75e30ec6b3	we're not in rust	2021-02-24 14:53:24 +01:00
Paul Zhang	f0f1c53ba8	Lazily initialize the final field	2021-02-23 18:20:32 +01:00
Paul Zhang	5779306940	Merge pull request #33 from SlingSMP/master Remove Legacy API	2021-01-19 13:59:58 +01:00
Ben Kerllenevich	d031708308	Remove Legacy	2021-01-19 06:40:40 -05:00
Paul Zhang	46f7e9385b	Merge pull request #32 from TCPShield/bugfix/event-priority Adjusts event priority	2021-01-11 23:44:48 +01:00
Paul Zhang	f100c0578a	adjust event priority	2021-01-08 23:54:30 +01:00
Paul Zhang	15c0543114	removes two unused fields	2021-01-08 23:38:13 +01:00
Paul Zhang	a1d6664906	removes second [TCPShield]-prefix on ip whitelist fetching	2020-12-27 00:34:52 +01:00
Paul Zhang	22b0b7065d	Merge pull request #28 from TCPShield/feature-revise-gitignore Update .gitignore	2020-12-24 17:13:02 +01:00
Paul Zhang	e66f4df4ee	Merge pull request #29 from RoboMWM/patch-1 contract an administrator	2020-12-23 20:04:36 +01:00
RoboMWM	74bc2b069c	Well, contracts can be kewl too	2020-12-23 11:01:40 -08:00
Paul Zhang	637c64916b	Update .gitignore	2020-12-23 17:14:43 +01:00
Paul Zhang	0a8d6295b2	Merge pull request #27 from TCPShield/bugfix-http-ok-check Adds a check if the webserver returns 200 on pulling the IP list	2020-12-23 16:58:41 +01:00
Paul Zhang	1d7f2c368a	changes line formatting	2020-12-23 16:55:05 +01:00
Paul Zhang	086bdd99d5	adds additional checks for validity of the returned string	2020-12-23 16:54:04 +01:00
Paul Zhang	d01aa5efc4	Adds a check if the webserver returns 200 on pulling the IP list	2020-12-23 16:43:16 +01:00
Paul Zhang	d67ece7a0d	Create LICENSE	2020-12-19 20:07:06 +01:00
Paul Zhang	615e4b2289	Update README.md Updates user link	2020-12-12 01:18:23 +01:00
Paul Zhang	ddf722c069	Fixes testing	2020-12-06 20:25:18 +01:00
Fuzzlemann	1b716d5e18	Merge remote-tracking branch 'origin/master'	2020-12-04 15:21:56 +01:00
Fuzzlemann	839d625ce9	Fixes that even though the IP is whitelisted, the player is being disconnected if the host packet didn't originate from the TCPShield network	2020-12-04 15:21:47 +01:00
Fuzzlemann	8a01e915b1	Fixes that even though the IP is whitelisted, the player is being disconnected if the host packet didn't originate from the TCPShield network	2020-12-04 15:20:30 +01:00
Fuzzlemann	32d422a952	Fixes raw IP matching	2020-12-04 13:45:22 +01:00
Fuzzlemann	c5cd43f2fa	Merge remote-tracking branch 'origin/master'	2020-12-02 14:12:51 +01:00
Fuzzlemann	d69d4f7ba8	Removes unused config keys	2020-12-02 14:12:35 +01:00
Paul Zhang	52325a8a2c	Merge pull request #24 from TCPShield/ip-validation TCPShield v2.4	2020-12-01 23:22:08 +01:00
Fuzzlemann	b07fe80979	Future-proofs HandshakePacketHandler for possible proxy-side changes in the handshake hostname data	2020-12-01 23:13:39 +01:00
Fuzzlemann	c6471d8e15	Fixes compatibility on some BungeeCord forks like FlameCord	2020-12-01 23:11:48 +01:00
Fuzzlemann	0dd3c25421	Removes the empty line on fetching the TCPShield IP list	2020-12-01 22:14:23 +01:00
Fuzzlemann	42530caa57	Reverts re-activation of native Paper support	2020-11-30 17:11:53 +01:00
Fuzzlemann	e58319cabe	Bumps version to v2.4	2020-11-30 17:11:23 +01:00
Fuzzlemann	1de480d575	Merge remote-tracking branch 'origin/ip-validation' into ip-validation	2020-11-29 19:34:30 +01:00
Fuzzlemann	1959106ac8	Fixes that the updated IPs are appended instead of replaced	2020-11-29 19:33:50 +01:00
Paul Zhang	5750391e43	Update README.md Updated because of the re-introduction of native paper support	2020-11-29 15:30:00 +01:00
Fuzzlemann	00f50110fe	Adds checks for the origin IP (if it's originating from TCPShield nodes) in replacement of signature checks + timestamp validation. Custom CIDR records can be added by creating a file in the "ip-whitelist" folder and adding one CIDR entry per line.	2020-11-29 15:16:11 +01:00
Paul Zhang	e14d937a70	Merge pull request #16 from JasperJH/master Fixes searchFieldByClass looping forever and incorrect cache keys	2020-11-05 23:19:10 +01:00
Fuzzlemann	3d5dab69bb	Changes wrong static final field naming	2020-11-01 19:09:00 +01:00
Fuzzlemann	a4302e4de8	Merge branch 'master' of https://github.com/TCPShield/RealIP	2020-11-01 18:20:37 +01:00
Fuzzlemann	e859a1c95a	Fixes ReflectionUtils#searchFieldByClass cache (#16 by JasperJH)	2020-11-01 18:19:16 +01:00
Fuzzlemann	a1e9b84b47	Refactors some test strings in TestConstants.java	2020-11-01 18:17:47 +01:00
Fuzzlemann	af998585e9	Adds Maven repository to build.gradle	2020-11-01 18:17:04 +01:00
Fuzzlemann	62b18b0842	Version bump to 2.3	2020-11-01 18:16:46 +01:00
Steven Ferguson	8c0d98fda4	Update README.md	2020-10-30 14:34:47 -06:00
JasperJH	78d22e627c	Fixes searchFieldByClass looping forever and incorrect cache keys	2020-09-11 12:12:16 +02:00
Fuzzlemann	a6dc0865f7	Fixes some compatibility issues with 1.16.2 where in some cases NetworkManagerServer is passed	2020-08-24 22:16:43 +02:00
Fuzzlemann	7907d8f731	Merge branch 'master' of https://github.com/TCPShield/RealIP	2020-08-13 11:27:28 +02:00
Fuzzlemann	32142f9961	Fixes some exceptions regarding legacy connections on Velocity 1.7 clients	2020-08-13 11:27:03 +02:00
Paul Zhang	f8d32f5e96	Update README.md	2020-08-11 15:11:46 +02:00
Fuzzlemann	f8da84de07	Fixes an IllegalArgumentException because of a missing SocketAddress field on some BungeeCord versions (= 1.7, e.g. zBungeeCord)	2020-08-11 13:19:40 +02:00
Fuzzlemann	cafc278c32	Fixes 1.7 support on some BungeeCord versions	2020-08-10 15:10:25 +02:00
Fuzzlemann	e958718bcb	Fixes issues with compatibility on 1.7	2020-07-30 19:42:49 +02:00
Fuzzlemann	031c2ed091	Change -64 to the constant EventPriority.LOWEST	2020-07-25 13:03:01 +02:00
Fuzzlemann	faf7568c81	Add Velocity event orders (priorities) to ensure better compatibility	2020-07-15 17:17:48 +02:00
Fuzzlemann	812f5c353f	Fixes error message when ProtocolLib's not installed	2020-07-15 17:14:43 +02:00
Fuzzlemann	6216b0c01e	Bump version to 2.2	2020-07-11 23:09:54 +02:00
Fuzzlemann	901ce0cfeb	Fix naming of the static final field	2020-07-11 23:09:12 +02:00
Fuzzlemann	a537099297	Fixes TCPShield on servers using Java versions higher than or equal to 12	2020-07-11 23:08:01 +02:00
Fuzzlemann	7a14a45338	Removes the modified logger on Bungee	2020-07-09 23:45:14 +02:00
Fuzzlemann	8f35cf9532	Fixes forced hosts in the Velocity implementation when the player is e.g. a forge user	2020-07-06 21:02:37 +02:00
Paul Zhang	39a977fa97	Merge pull request #8 from Fuzzlemann/pr TCPShield v2.1	2020-07-06 18:02:25 +02:00
Fuzzlemann	2178727b21	Adds the timestamp validation mode to the warning	2020-07-06 17:58:49 +02:00
Fuzzlemann	553332c641	Bumps version to 2.1	2020-07-06 17:53:18 +02:00
Fuzzlemann	23c207e3b9	Temporarily disables native Paper support	2020-07-06 17:52:02 +02:00
Fuzzlemann	bf40833d5d	Fixes forced hosts with Velocity	2020-07-02 22:14:41 +02:00
Fuzzlemann	818df3cbb1	Changes Velocity player disconnect when the handshake is legacy as an error was thrown	2020-06-30 20:59:53 +02:00
Fuzzlemann	fcc3ef4fef	Fixes Velocity error messages on legacy pings	2020-06-25 18:11:50 +02:00
Ryan De Lap	d39f520279	Add contributors section to README	2020-06-14 22:20:15 -05:00
Ryan De Lap	d24a6a1a99	Merge pull request #6 from Fuzzlemann/pr Major rewrite of TCPShield	2020-06-14 02:05:06 -05:00
Fuzzlemann	c3b5d209ae	Fixes a bug where the config generation on BungeeCord failed.	2020-06-13 00:58:13 +02:00
Fuzzlemann	2ca823411f	Fix for the Bungee timeout issue many are facing. This simple but mandatory commit prevents that the hostname of the server is resolved to its IP which can cause massive network latencies.	2020-06-11 02:25:34 +02:00
Fuzzlemann	197f908fc5	Fixes wrongly named packets	2020-05-28 16:57:23 +02:00
Fuzzlemann	a784224592	Updates README.md	2020-05-27 17:00:13 +02:00
Fuzzlemann	57f3e37ff7	Revert "Update README.md" This reverts commit `3dc3fcad`	2020-05-27 16:40:48 +02:00
Fuzzlemann	f4b56671b9	Changes server to google.com	2020-05-24 02:18:29 +02:00
Fuzzlemann	ed0670c5c5	Implements automatic synchronization of time over HTTP	2020-05-24 00:34:34 +02:00
Fuzzlemann	801fca080a	Adds an option for turning on / off timestamp validation in case someone does not have control over the host machine time	2020-05-23 22:35:21 +02:00
Fuzzlemann	00b79770bd	Fixes mistakenly named bungeecord implementation of IConfig	2020-05-15 23:03:03 +02:00
Fuzzlemann	9aef0402f5	Adds testing and fixes some issues which were noticed while creating the tests, including: - correct exception handling when verifying signatures - also searching private fields when searching fields by class - making modifier field accessible	2020-05-15 22:52:13 +02:00
Fuzzlemann	1b76e0e6bf	Adds support for Velocity	2020-05-15 19:43:11 +02:00
Fuzzlemann	43bbf589de	Fix config creation error with BungeeCord	2020-05-15 19:25:47 +02:00
Fuzzlemann	12b8f8da99	removes forgotten debug messages	2020-05-15 18:34:09 +02:00
Fuzzlemann	9cd06036bb	Adds native paper support (does not require the installation of ProtocolLib)	2020-05-15 18:32:32 +02:00
Fuzzlemann	d9e2e34196	Merge remote-tracking branch 'fork/master'	2020-05-13 00:56:51 +02:00
Fuzzlemann	f6bf0346ff	-> changes class names related to abstraction	2020-05-13 00:56:37 +02:00
Paul Zhang	3dc3fcad05	Update README.md	2020-05-13 00:05:04 +02:00
Fuzzlemann	60ae269f33	Major code restructuring in order to fulfill quality requirements -> moves to Gradle -> major speedup of build times -> automatic adjustment of version in bungee.yml and plugin.yml based on version given in the gradle build file -> implements abstraction layers -> unification of Bungee & Bukkit logic -> helps keeping code up-to-date and similar (e.g. timestamp checks were disabled on bukkit but enabled on bungee) -> removes boilerplate code which is vulnerable for bugs -> adds own and specific exceptions -> improves/changes debug/log messages -> i.g. code improvements / code style changes -> some performance improvements	2020-05-12 23:59:46 +02:00
Steven Ferguson	b8921033d1	Update version number	2020-05-12 03:59:21 -06:00
Steven Ferguson	92c27ed407	Update version number	2020-05-12 03:58:46 -06:00