Finish the plugin

Author: BlueTree242

.gitignore

@@ -21,3 +21,14 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+
+
+
+
+# Custom files
+build/
+.idea/
+gradle/
+.gradle/
+gradlew
+gradlew.bat

build.gradle

@@ -0,0 +1,47 @@
+import org.apache.tools.ant.filters.ReplaceTokens
+
+plugins {
+    id 'java'
+    id 'maven-publish'
+}
+
+version '1.0'
+
+repositories {
+    mavenCentral()
+    maven {
+        url = uri("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
+    }
+    maven {
+        url = uri("https://repo.destroystokyo.com/repository/maven-public/")
+    }
+    maven { url "https://repo.dmulloy2.net/repository/public/" }
+
+}
+
+dependencies {
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    compileOnly 'org.spigotmc:spigot-api:1.13-R0.1-SNAPSHOT'
+    compileOnly group: "com.comphenix.protocol", name: "ProtocolLib", version: "4.7.0";
+    compileOnly 'org.bukkit:bukkit:1.13-R0.1-SNAPSHOT'
+    compileOnly 'com.mojang:brigadier:1.0.18'
+}
+
+group = 'me.bluetree.advancedplhide'
+description = 'AdvancedPlHide'
+compileJava.options.encoding 'UTF-8'
+java.sourceCompatibility = JavaVersion.VERSION_11
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from(components.java)
+        }
+    }
+}
+
+processResources {
+    from(sourceSets.main.resources.srcDirs) {
+        filter ReplaceTokens, tokens: [version: version]
+    }
+}

src/main/java/me/bluetree/advancedplhide/AdvancedPlHide.java

@@ -0,0 +1,38 @@
+package me.bluetree.advancedplhide;
+
+
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.ProtocolManager;
+import org.bukkit.ChatColor;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerCommandPreprocessEvent;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class AdvancedPlHide extends JavaPlugin implements Listener {
+    private ProtocolManager protocolManager;
+    private PacketListener listener = new PacketListener(this);
+
+    public void onLoad() {
+        protocolManager = ProtocolLibrary.getProtocolManager();
+    }
+
+    public void onEnable() {
+        protocolManager.addPacketListener(new PacketListener(this));
+        getServer().getPluginManager().registerEvents(this, this);
+
+    }
+
+    public void onDisable() {
+        protocolManager.removePacketListener(listener);
+    }
+
+    @EventHandler
+    public void onPlayerCommand(PlayerCommandPreprocessEvent e) {
+        if (e.getPlayer().hasPermission("plhide.command")) return;
+        if (e.getMessage().startsWith("/plugins") || e.getMessage().startsWith("/pl") || e.getMessage().startsWith("/bukkit:pl") || e.getMessage().startsWith("/bukkit:plugins")) {
+            e.setCancelled(true);
+            e.getPlayer().sendMessage(ChatColor.RED + "We won't show you the plugin list for sure");
+        }
+    }
+}

src/main/java/me/bluetree/advancedplhide/PacketListener.java

@@ -0,0 +1,54 @@
+package me.bluetree.advancedplhide;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.injector.server.TemporaryPlayer;
+import com.comphenix.protocol.reflect.StructureModifier;
+import com.mojang.brigadier.suggestion.Suggestion;
+import com.mojang.brigadier.suggestion.Suggestions;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PacketListener extends PacketAdapter {
+
+    public PacketListener(AdvancedPlHide core) {
+        super(core, ListenerPriority.NORMAL, PacketType.Play.Server.TAB_COMPLETE);
+    }
+
+    @Override
+    public void onPacketSending(PacketEvent e) {
+        if (e.getPlayer() == null || e.getPlayer() instanceof TemporaryPlayer) return;
+
+        PacketContainer packetContainer = e.getPacket();
+
+        StructureModifier<Suggestions> matchModifier = packetContainer.getSpecificModifier(Suggestions.class);
+
+        Suggestions matchedCommands = matchModifier.read(0);
+        Suggestions allowedCommands = new Suggestions(matchedCommands.getRange(), new ArrayList<>(matchedCommands.getList()));
+        List<String> tohide = new ArrayList<>();
+        for (Plugin plugin : Bukkit.getServer().getPluginManager().getPlugins()) {
+            tohide.add(plugin.getName().toLowerCase() + ":");
+        }
+        tohide.add("paper");
+        tohide.add("spigot");
+        tohide.add("bukkit");
+        tohide.add("purpur");
+        tohide.add("airplane");
+        tohide.add("minecraft");
+        tohide.add("votingpluginvaluerequestinput");
+        for (Suggestion matchedCommand : matchedCommands.getList()) {
+            for (String hide : tohide) {
+                if (matchedCommand.getText().startsWith(hide)) {
+                    allowedCommands.getList().remove(matchedCommand);
+                }
+            }
+        }
+        matchModifier.write(0, allowedCommands);
+    }
+}

src/main/resources/plugin.yml

@@ -0,0 +1,8 @@
+name: AdvancedPlHide
+version: @version@
+main: me.bluetree.advancedplhide.AdvancedPlHide
+author: BlueTree242
+api-version: 1.13
+
+depend:
+  - ProtocolLib