From 1b3b020d52fda5f1c3c15391a9d4ee2dbc352a21 Mon Sep 17 00:00:00 2001
From: Steven Qiu <tnqzh123@littlesk.in>
Date: Sun, 27 Jul 2025 03:34:35 +0800
Subject: [PATCH] fix: make imagick sanitize result stable

---
 app/Http/Controllers/SkinlibController.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/Http/Controllers/SkinlibController.php b/app/Http/Controllers/SkinlibController.php
index 2897491f..268c61d6 100644
--- a/app/Http/Controllers/SkinlibController.php
+++ b/app/Http/Controllers/SkinlibController.php
@@ -265,7 +265,13 @@ class SkinlibController extends Controller
         }
 
         $image = Image::make($file);
-        $sanitized = $image->encode('png', 100)->getEncoded();
+        $imagick = $image->getCore();
+        $imagick->setOption('png:compression-filter', '0');
+        $imagick->setOption('png:compression-level', '9');
+        $imagick->setOption('png:compression-strategy', '0');
+        $imagick->setOption('png:exclude-chunk', 'all');
+        $imagick->stripImage();
+        $sanitized = $image->encode('png')->getEncoded();
 
         $hash = hash('sha256', $image->encoded);
         $hash = $filter->apply('uploaded_texture_hash', $hash, [$image]);