From 4bf6f3d852dd1275e3b0c4e0e70a1ad1b1a3fa96 Mon Sep 17 00:00:00 2001
From: PeriodicSeizures <47781580+PeriodicSeizures@users.noreply.github.com>
Date: Wed, 16 Aug 2023 09:59:14 -0400
Subject: [PATCH] Spoof resource packs

Prevents some servers *cough* *cough* *cubecraft* from kicking you if resource pack denied or failed to download.

Disabled by default because its not as necessary when compared to something like NoChatReports or NoTelemetry.
---
 .../mixin/ClientPlayNetworkHandlerMixin.java  | 26 ++++++++++---
 .../wurstclient/other_feature/OtfList.java    |  1 +
 .../other_features/SpoofResourcePackOtf.java  | 38 +++++++++++++++++++
 3 files changed, 60 insertions(+), 5 deletions(-)
 create mode 100644 src/main/java/net/wurstclient/other_features/SpoofResourcePackOtf.java

diff --git a/src/main/java/net/wurstclient/mixin/ClientPlayNetworkHandlerMixin.java b/src/main/java/net/wurstclient/mixin/ClientPlayNetworkHandlerMixin.java
index 9d246a74be..14af0a15ba 100644
--- a/src/main/java/net/wurstclient/mixin/ClientPlayNetworkHandlerMixin.java
+++ b/src/main/java/net/wurstclient/mixin/ClientPlayNetworkHandlerMixin.java
@@ -7,6 +7,9 @@
  */
 package net.wurstclient.mixin;
 
+import net.minecraft.fluid.FluidState;
+import net.minecraft.network.packet.c2s.play.ResourcePackStatusC2SPacket;
+import net.minecraft.network.packet.s2c.play.*;
 import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
@@ -19,10 +22,6 @@
 import net.minecraft.client.toast.SystemToast;
 import net.minecraft.network.listener.ClientPlayPacketListener;
 import net.minecraft.network.packet.Packet;
-import net.minecraft.network.packet.s2c.play.BlockUpdateS2CPacket;
-import net.minecraft.network.packet.s2c.play.ChunkData;
-import net.minecraft.network.packet.s2c.play.ChunkDeltaUpdateS2CPacket;
-import net.minecraft.network.packet.s2c.play.ServerMetadataS2CPacket;
 import net.minecraft.text.MutableText;
 import net.minecraft.text.Text;
 import net.wurstclient.WurstClient;
@@ -37,7 +36,7 @@ public abstract class ClientPlayNetworkHandlerMixin
 	@Shadow
 	@Final
 	private MinecraftClient client;
-	
+
 	@Inject(at = @At("HEAD"),
 		method = "sendPacket(Lnet/minecraft/network/packet/Packet;)V",
 		cancellable = true)
@@ -101,4 +100,21 @@ private void onOnChunkDeltaUpdate(ChunkDeltaUpdateS2CPacket packet,
 			(pos, state) -> WurstClient.INSTANCE.getHax().newChunksHack
 				.afterUpdateBlock(pos));
 	}
+
+	@Inject(at = @At("HEAD"),
+			method = "onResourcePackSend(Lnet/minecraft/network/packet/s2c/play/ResourcePackSendS2CPacket;)V",
+			cancellable = true)
+	private void onOnResourcePackSend(ResourcePackSendS2CPacket packet,
+									  CallbackInfo ci)
+	{
+		if(!WurstClient.INSTANCE.getOtfs().spoofResourcePackOtf.isEnabled())
+			return;
+
+		this.sendResourcePackStatus(ResourcePackStatusC2SPacket.Status.ACCEPTED);
+
+		ci.cancel();
+	}
+
+	@Shadow
+	protected abstract void sendResourcePackStatus(ResourcePackStatusC2SPacket.Status packet);
 }
diff --git a/src/main/java/net/wurstclient/other_feature/OtfList.java b/src/main/java/net/wurstclient/other_feature/OtfList.java
index 5076b5feab..269c4b5d02 100644
--- a/src/main/java/net/wurstclient/other_feature/OtfList.java
+++ b/src/main/java/net/wurstclient/other_feature/OtfList.java
@@ -27,6 +27,7 @@ public final class OtfList
 	public final NoTelemetryOtf noTelemetryOtf = new NoTelemetryOtf();
 	public final ReconnectOtf reconnectOtf = new ReconnectOtf();
 	public final ServerFinderOtf serverFinderOtf = new ServerFinderOtf();
+	public final SpoofResourcePackOtf spoofResourcePackOtf = new SpoofResourcePackOtf();
 	public final TabGuiOtf tabGuiOtf = new TabGuiOtf();
 	public final TranslationsOtf translationsOtf = new TranslationsOtf();
 	public final VanillaSpoofOtf vanillaSpoofOtf = new VanillaSpoofOtf();
diff --git a/src/main/java/net/wurstclient/other_features/SpoofResourcePackOtf.java b/src/main/java/net/wurstclient/other_features/SpoofResourcePackOtf.java
new file mode 100644
index 0000000000..9b6086e169
--- /dev/null
+++ b/src/main/java/net/wurstclient/other_features/SpoofResourcePackOtf.java
@@ -0,0 +1,38 @@
+package net.wurstclient.other_features;
+
+import net.wurstclient.other_feature.OtherFeature;
+import net.wurstclient.settings.CheckboxSetting;
+
+public final class SpoofResourcePackOtf extends OtherFeature {
+
+    private final CheckboxSetting disableResourcePacks =
+            new CheckboxSetting("Disable downloaded resource packs", false);
+
+    public SpoofResourcePackOtf()
+    {
+        super("SpoofResourcePack",
+                "Skips downloading and success confirmation of resource packs for some servers");
+        addSetting(disableResourcePacks);
+    }
+
+    @Override
+    public boolean isEnabled()
+    {
+        return disableResourcePacks.isChecked();
+    }
+
+    @Override
+    public String getPrimaryAction()
+    {
+        return isEnabled() ? "Re-enable downloading" : "Disable downloading";
+    }
+
+    @Override
+    public void doPrimaryAction()
+    {
+        disableResourcePacks.setChecked(!disableResourcePacks.isChecked());
+    }
+
+    // See ClientPlayNetworkHandlerMixin::onOnResourcePackSend
+
+}