From 1c2235af5a26c2a608ece80fae7b3d37d34b9eda Mon Sep 17 00:00:00 2001
From: Andrew Steinborn <git@steinborn.me>
Date: Mon, 24 Dec 2018 09:44:26 -0500
Subject: [PATCH] Explicitly find and complain about BungeeCord and Bukkit
 plugins.

They aren't supported with Velocity and will never be.
---
 .../proxy/plugin/loader/JavaPluginLoader.java         | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/JavaPluginLoader.java b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/JavaPluginLoader.java
index 167d93427..7f29712fe 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/JavaPluginLoader.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/plugin/loader/JavaPluginLoader.java
@@ -83,6 +83,7 @@ public class JavaPluginLoader implements PluginLoader {
 
   private Optional<SerializedPluginDescription> getSerializedPluginInfo(Path source)
       throws Exception {
+    boolean foundBungeeBukkitPluginFile = false;
     try (JarInputStream in = new JarInputStream(
         new BufferedInputStream(Files.newInputStream(source)))) {
       JarEntry entry;
@@ -93,6 +94,16 @@ public class JavaPluginLoader implements PluginLoader {
                 .fromJson(pluginInfoReader, SerializedPluginDescription.class));
           }
         }
+
+        if (entry.getName().equals("plugin.yml") || entry.getName().equals("bungee.yml")) {
+          foundBungeeBukkitPluginFile = true;
+        }
+      }
+
+      if (foundBungeeBukkitPluginFile) {
+        throw new InvalidPluginException("The plugin file " + source.getFileName() + " appears to "
+            + "be a Bukkit or BungeeCord plugin. Velocity does not support Bukkit or BungeeCord "
+            + "plugins.");
       }
 
       return Optional.empty();