Extract class sources (plugin/mod names) and include in data payload

3 files changed, 65 insertions, 0 deletions

diff --git a/spark-velocity2/build.gradle b/spark-velocity2/build.gradle
index ebb925f..184c2a3 100644
--- a/spark-velocity2/build.gradle
+++ b/spark-velocity2/build.gradle
@@ -27,6 +27,7 @@ shadowJar {
 
     relocate 'okio', 'me.lucko.spark.lib.okio'
     relocate 'okhttp3', 'me.lucko.spark.lib.okhttp3'
+    relocate 'net.bytebuddy', 'me.lucko.spark.lib.bytebuddy'
     relocate 'org.tukaani.xz', 'me.lucko.spark.lib.xz'
     relocate 'com.google.protobuf', 'me.lucko.spark.lib.protobuf'
     relocate 'org.objectweb.asm', 'me.lucko.spark.lib.asm'
diff --git a/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2ClassSourceLookup.java b/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2ClassSourceLookup.java
new file mode 100644
index 0000000..8374f09
--- /dev/null
+++ b/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2ClassSourceLookup.java
@@ -0,0 +1,59 @@
+/*
+ * This file is part of spark.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package me.lucko.spark.velocity;
+
+import com.velocitypowered.api.plugin.PluginContainer;
+import com.velocitypowered.api.plugin.PluginManager;
+
+import me.lucko.spark.common.util.ClassSourceLookup;
+
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+public class Velocity2ClassSourceLookup extends ClassSourceLookup.ByClassLoader {
+    private static final Class<?> PLUGIN_CLASS_LOADER;
+
+    static {
+        try {
+            PLUGIN_CLASS_LOADER = Class.forName("com.velocitypowered.proxy.plugin.PluginClassLoader");
+        } catch (ReflectiveOperationException e) {
+            throw new ExceptionInInitializerError(e);
+        }
+    }
+
+    private final PluginManager pluginManager;
+
+    public Velocity2ClassSourceLookup(PluginManager pluginManager) {
+        this.pluginManager = pluginManager;
+    }
+
+    @Override
+    public @Nullable String identify(ClassLoader loader) {
+        if (PLUGIN_CLASS_LOADER.isInstance(loader)) {
+            for (PluginContainer plugin : this.pluginManager.plugins()) {
+                Object instance = plugin.instance();
+                if (instance != null && instance.getClass().getClassLoader() == loader) {
+                    return plugin.description().name();
+                }
+            }
+        }
+        return null;
+    }
+}
diff --git a/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2SparkPlugin.java b/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2SparkPlugin.java
index a788a59..0ea4bf8 100644
--- a/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2SparkPlugin.java
+++ b/spark-velocity2/src/main/java/me/lucko/spark/velocity/Velocity2SparkPlugin.java
@@ -110,6 +110,11 @@ public class Velocity2SparkPlugin implements SparkPlugin, SimpleCommand {
     }
 
     @Override
+    public ClassSourceLookup createClassSourceLookup() {
+        return new Velocity2ClassSourceLookup(this.proxy.pluginManager());
+    }
+
+    @Override
     public PlatformInfo getPlatformInfo() {
         return new Velocity2PlatformInfo(this.proxy);
     }