From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ben Kerllenevich <ben@omega24.dev>
Date: Sat, 25 Jun 2022 19:40:36 -0400
Subject: [PATCH] Spark Profiler


diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 7960433f8278e3bd0ec43db3d3820ff2740a7c13..3048fe320912d805394c472661ab20c00994116b 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -410,6 +410,7 @@ public final class CraftServer implements Server {
         this.pluginManager.registerInterface(JavaPluginLoader.class);
 
         File pluginFolder = this.getPluginsFolder(); // Paper
+        boolean sparkLoaded = false; // Purpur
 
         // Paper start
         if (true || pluginFolder.exists()) {
@@ -423,6 +424,7 @@ public final class CraftServer implements Server {
                     String message = String.format("Loading %s", plugin.getDescription().getFullName());
                     plugin.getLogger().info(message);
                     plugin.onLoad();
+                    sparkLoaded = sparkLoaded || plugin.getDescription().getName().equalsIgnoreCase("spark"); // Purpur
                 } catch (Throwable ex) {
                     Logger.getLogger(CraftServer.class.getName()).log(Level.SEVERE, ex.getMessage() + " initializing " + plugin.getDescription().getFullName() + " (Is it up to date?)", ex);
                 }
@@ -430,6 +432,43 @@ public final class CraftServer implements Server {
         } else {
             pluginFolder.mkdir();
         }
+
+        // Purpur start
+        if (!sparkLoaded) {
+            try {
+                File file = new File("cache", "spark.jar");
+                file.getParentFile().mkdirs();
+
+                boolean shouldDownload = true;
+                if (file.exists()) {
+                    String fileSha1 = String.format("%040x", new java.math.BigInteger(1, java.security.MessageDigest.getInstance("SHA-1").digest(java.nio.file.Files.readAllBytes(file.toPath()))));
+                    String sparkSha1;
+                    try (java.io.BufferedReader reader = new java.io.BufferedReader(new InputStreamReader(new java.net.URL("https://sparkapi.lucko.me/download/bukkit/sha1").openStream()))) {
+                        sparkSha1 = reader.lines().collect(Collectors.joining(""));
+                    }
+
+                    System.out.println("File SHA1: " + fileSha1);
+                    System.out.println("Spark SHA1: " + sparkSha1);
+
+                    if (fileSha1.equals(sparkSha1)) {
+                        shouldDownload = false;
+                    }
+                }
+
+                if (shouldDownload) {
+                    java.nio.file.Files.copy(new java.net.URL("https://sparkapi.lucko.me/download/bukkit").openStream(), file.toPath(), java.nio.file.StandardCopyOption.REPLACE_EXISTING);
+                }
+
+                Plugin spark = this.pluginManager.loadPlugin(file);
+                String message = String.format("Loading %s", spark.getDescription().getFullName());
+                spark.getLogger().info(message);
+                spark.onLoad();
+            } catch (Exception e) {
+                getLogger().severe("Failed to download and load spark plugin");
+                e.printStackTrace();
+            }
+        }
+        // Purpur end
     }
 
     // Paper start