Purpur/patches/server/0121-YAPFA-Disable-mojang-profiler.patch

From ce1df0f5e6116252c28393ab7813dac55252e08b Mon Sep 17 00:00:00 2001
From: tr7zw <tr7zw@live.de>
Date: Thu, 5 Mar 2020 23:08:01 +0100
Subject: [PATCH] YAPFA - Disable mojang profiler

---
 .../net/minecraft/server/CommandDebug.java    |  5 ++
 .../net/minecraft/server/MinecraftServer.java |  5 +-
 .../net/pl3x/purpur/GameProfilerNoop.java     | 68 +++++++++++++++++++
 .../java/org/bukkit/craftbukkit/Main.java     |  2 +
 src/main/resources/purpur.lang                |  1 +
 5 files changed, 80 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/net/pl3x/purpur/GameProfilerNoop.java

diff --git a/src/main/java/net/minecraft/server/CommandDebug.java b/src/main/java/net/minecraft/server/CommandDebug.java
index f0d72ea39d..e38a684060 100644
--- a/src/main/java/net/minecraft/server/CommandDebug.java
+++ b/src/main/java/net/minecraft/server/CommandDebug.java
@@ -22,6 +22,7 @@ public class CommandDebug {
     private static final Logger LOGGER = LogManager.getLogger();
     private static final SimpleCommandExceptionType b = new SimpleCommandExceptionType(new ChatMessage("commands.debug.notRunning", new Object[0]));
     private static final SimpleCommandExceptionType c = new SimpleCommandExceptionType(new ChatMessage("commands.debug.alreadyRunning", new Object[0]));
+    private static final SimpleCommandExceptionType disabled = new SimpleCommandExceptionType(new ChatMessage("commands.purpur.debug.disabled")); // Purpur
     @Nullable
     private static final FileSystemProvider d = (FileSystemProvider) FileSystemProvider.installedProviders().stream().filter((filesystemprovider) -> {
         return filesystemprovider.getScheme().equalsIgnoreCase("jar");
@@ -43,6 +44,8 @@ public class CommandDebug {
         MinecraftServer minecraftserver = commandlistenerwrapper.getServer();
         GameProfiler gameprofiler = minecraftserver.getMethodProfiler();
 
+        if (gameprofiler instanceof net.pl3x.purpur.GameProfilerNoop) throw CommandDebug.disabled.create(); // Purpur
+
         if (gameprofiler.d().a()) {
             throw CommandDebug.c.create();
         } else {
@@ -56,6 +59,8 @@ public class CommandDebug {
         MinecraftServer minecraftserver = commandlistenerwrapper.getServer();
         GameProfiler gameprofiler = minecraftserver.getMethodProfiler();
 
+        if (gameprofiler instanceof net.pl3x.purpur.GameProfilerNoop) throw CommandDebug.disabled.create(); // Purpur
+
         if (!gameprofiler.d().a()) {
             throw CommandDebug.b.create();
         } else {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index b879d5f87a..2e2d298b7d 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -80,7 +80,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
     private final MojangStatisticsGenerator snooper = new MojangStatisticsGenerator("server", this, SystemUtils.getMonotonicMillis());
     public File universe;
     private final List<Runnable> tickables = Lists.newArrayList();
-    private final GameProfiler methodProfiler = new GameProfiler(this::ak);
+    protected GameProfiler methodProfiler = new net.pl3x.purpur.GameProfilerNoop(this::getTickCount); // Purpur
     private ServerConnection serverConnection;
     public final WorldLoadListenerFactory worldLoadListenerFactory;
     private final ServerPing serverPing = new ServerPing();
@@ -1446,6 +1446,8 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
             String s1 = (String) Optional.ofNullable(optionset.valueOf("world")).orElse(dedicatedserversettings.getProperties().levelName);
             final DedicatedServer dedicatedserver = new DedicatedServer(optionset, dedicatedserversettings, DataConverterRegistry.a(), yggdrasilauthenticationservice, minecraftsessionservice, gameprofilerepository, usercache, WorldLoadListenerLogger::new, s1);
 
+            if (optionset.has("enableProfiler") || optionset.nonOptionArguments().contains("enableProfiler")) dedicatedserver.methodProfiler = new GameProfiler(dedicatedserver::getTickCount); // Purpur
+
             /*
             dedicatedserver.i((String) optionset.valueOf(optionspec7));
             dedicatedserver.setPort((Integer) optionset.valueOf(optionspec10));
@@ -1871,6 +1873,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
 
     public abstract boolean a(EnumGamemode enumgamemode, boolean flag, int i);
 
+    public int getTickCount() { return ak(); } // Purpur - OBFHELPER
     public int ak() {
         return this.ticks;
     }
diff --git a/src/main/java/net/pl3x/purpur/GameProfilerNoop.java b/src/main/java/net/pl3x/purpur/GameProfilerNoop.java
new file mode 100644
index 0000000000..b32a5418f2
--- /dev/null
+++ b/src/main/java/net/pl3x/purpur/GameProfilerNoop.java
@@ -0,0 +1,68 @@
+package net.pl3x.purpur;
+
+import net.minecraft.server.GameProfiler;
+import net.minecraft.server.MethodProfilerResults;
+import net.minecraft.server.MethodProfilerResultsEmpty;
+
+import java.util.function.IntSupplier;
+import java.util.function.Supplier;
+
+public class GameProfilerNoop extends GameProfiler {
+    private final EmptyProfiler profiler = new EmptyProfiler();
+
+    public GameProfilerNoop(IntSupplier tickCount) {
+        super(tickCount);
+    }
+
+    public GameProfiler.a d() {
+        return this.profiler;
+    }
+
+    @Override
+    public void a() {
+    }
+
+    @Override
+    public void b() {
+    }
+
+    @Override
+    public void enter(String s) {
+    }
+
+    @Override
+    public void a(Supplier<String> supplier) {
+    }
+
+    @Override
+    public void exit() {
+    }
+
+    @Override
+    public void exitEnter(String s) {
+    }
+
+    @Override
+    public void c(String s) {
+    }
+
+    @Override
+    public void c(Supplier<String> supplier) {
+    }
+
+    static class EmptyProfiler implements GameProfiler.a {
+        @Override
+        public boolean a() { // isEnabled
+            return false;
+        }
+
+        @Override
+        public MethodProfilerResults b() { // disable
+            return MethodProfilerResultsEmpty.a; // empty
+        }
+
+        @Override
+        public void d() { // enable
+        }
+    }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
index 7b7e1475b3..1136a0a26d 100644
--- a/src/main/java/org/bukkit/craftbukkit/Main.java
+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
@@ -144,6 +144,8 @@ public class Main {
                         .ofType(File.class)
                         .defaultsTo(new File("purpur.yml"))
                         .describedAs("Yml file");
+
+                acceptsAll(asList("enableProfiler"), "Enables the vanilla profiler");
                 // Purpur end
 
                 // Paper start
diff --git a/src/main/resources/purpur.lang b/src/main/resources/purpur.lang
index e81beea7fa..5c3536b26b 100644
--- a/src/main/resources/purpur.lang
+++ b/src/main/resources/purpur.lang
@@ -1,5 +1,6 @@
 {
   "cannot.ride.mob": "You cannot mount that mob",
+  "commands.purpur.debug.disabled": "The debug profiler is disabled",
   "commands.purpur.ping": "§a%s's ping is %sms",
   "idle.timeout.broadcast.away": "§e§o%s is now AFK",
   "idle.timeout.broadcast.back": "§e§o%s is no longer AFK"
-- 
2.24.0