【混淆】尝试增加多态dll机制

ProjectNLD/Assets/Code/Scripts/HotUpdate/Editor/HotUpadeEditorHelper.cs

@@ -92,6 +92,62 @@ public static class HotUpadeEditorHelper
         Debug.Log("转移补充元数据dll成功!");
     }
 
+    private static void _HandleConvertDllToPolymorphic(string dllPath)
+    {
+        // 把路径下的所有dll转换成多态dll形势
+        // 1. 读取所有*.bytes文件转存到临时目录,去掉.bytes后缀
+        // 2. 调用Obfuz4HybridCLR的转换接口进行转换,输出到另外一个临时目录
+        // 3. 把转换后的dll覆盖回原来的.bytes文件
+        // 临时目录设置在 Application.dataPath + "/../Temp/Obfuz4HybridCLR/CacheDlls1" 和 Application.dataPath + "/../Temp/Obfuz4HybridCLR/CacheDlls2"
+        var tempDir1 = Application.dataPath + "/../Temp/Obfuz4HybridCLR/CacheDlls1/";
+        var tempDir2 = Application.dataPath + "/../Temp/Obfuz4HybridCLR/CacheDlls2/";
+        if (Directory.Exists(tempDir1))
+        {
+            Directory.Delete(tempDir1, true);
+        }
+        if (Directory.Exists(tempDir2))
+        {
+            Directory.Delete(tempDir2, true);
+        }
+        Directory.CreateDirectory(tempDir1);
+        Directory.CreateDirectory(tempDir2);
+        var dir = new DirectoryInfo(dllPath);
+        var files = dir.GetFiles();
+        // 步骤1: 复制.bytes文件到临时目录1，去掉.bytes后缀
+        foreach (var file in files)
+        {
+            var dllFileName = Path.GetFileNameWithoutExtension(file.Name); // 去掉.bytes
+            var destPath = Path.Combine(tempDir1, dllFileName);
+            File.Copy(file.FullName, destPath, true);
+            Debug.Log($"[ConvertDll] Copy {file.Name} to {destPath}");
+        }
+    
+        // 步骤2: 调用Obfuz4HybridCLR转换接口
+        ObfuscateUtil.GeneratePolymorphicDll(tempDir1, tempDir2);
+    
+        // 步骤3: 把转换后的dll覆盖回原来的.bytes文件
+        var convertedFiles = new DirectoryInfo(tempDir2).GetFiles("*.dll");
+        foreach (var file in convertedFiles)
+        {
+            var originalBytesPath = Path.Combine(dllPath, file.Name + ".bytes");
+            if (File.Exists(originalBytesPath))
+            {
+                File.Copy(file.FullName, originalBytesPath, true);
+                Debug.Log($"[ConvertDll] Override {originalBytesPath} with converted dll");
+            }
+        }
+    }
+
+    public static void ConvertOriginalDllToPolymorphicDll()
+    {
+        // Assets/HotUpdateDlls/HotUpdateDll
+        var hotUpdateDestinationPath = Application.dataPath + HOT_UPDATE_DESTINATION_PATH;
+        _HandleConvertDllToPolymorphic(hotUpdateDestinationPath);
+        // Assets/HotUpdateDlls/MetaDataDll
+        var metaDataDestinationPath = Application.dataPath + META_DATA_DESTINATION_PATH;
+        _HandleConvertDllToPolymorphic(metaDataDestinationPath);
+    }
+
     //之所以采用读取C#文件的方式是因为如果直接读取代码中的列表会出现打包时更改了AOTGenericReferences.cs但Unity没编译导致
     //AOTGenericReferences中PatchedAOTAssemblyList还是代码修改前的数据的问题，是因为Unity没有reload domain
     //https://docs.unity.cn/2023.2/Documentation/Manual/DomainReloading.html

ProjectNLD/Assets/Editor/Common/BuildLauncherInEditor.cs

@@ -91,6 +91,12 @@ class BuildLauncher
         }
         
         HotUpadeEditorHelper.CopyMetaDataDll();
+
+        if (ObfuzSettings.Instance.polymorphicDllSettings.enable)
+        {
+            // 使用多态dll
+            HotUpadeEditorHelper.ConvertOriginalDllToPolymorphicDll();
+        }
     }
 
     /// <summary>

ProjectNLD/ProjectSettings/Obfuz.asset

@@ -91,5 +91,5 @@ MonoBehaviour:
     signatureLength: 256
   polymorphicDllSettings:
     enable: 1
-    codeGenerationSecretKey: obfuz-polymorphic-key
-    disableLoadStandardDll: 0
+    codeGenerationSecretKey: obfuz-phxh-polymorphic-check-dll
+    disableLoadStandardDll: 1