上传文件至 Fix

2025-10-13 18:19:13 +08:00
parent 80c8e81641
commit 1a75436303
12 changed files with 451 additions and 0 deletions
--- a/Fix/DisableEncryption.cs
+++ b/Fix/DisableEncryption.cs
@@ -0,0 +1,89 @@
+using System;
+using HarmonyLib;
+using Net.Packet;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using AMDaemon.Allnet;
+using Main;
+using Manager;
+using Manager.Operation;
+using MelonLoader;
+using Net;
+using Net.VO;
+
+namespace SinmaiAssist.Fix;
+
+public class DisableEncryption
+{
+    // codes from AquaMai [https://github.com/MewoLab/AquaMai/blob/main/AquaMai.Core]
+    private static string apiSuffix = "";
+    
+    [HarmonyPostfix]
+    [HarmonyPatch(typeof(GameMain), "LateInitialize")]
+    public static void GetApiSuffix()
+    {
+        try
+        {
+            var baseNetQueryConstructor = typeof(NetQuery<VOSerializer, VOSerializer>)
+                .GetConstructors()
+                .First();
+            apiSuffix = ((INetQuery)baseNetQueryConstructor.Invoke(
+            [.. baseNetQueryConstructor
+                .GetParameters()
+                .Select((parameter, i) => i == 0 ? "" : parameter.DefaultValue)])).Api;
+            MelonLogger.Msg($"API suffix: {apiSuffix}");
+        }
+        catch (Exception e)
+        {
+            MelonLogger.Error($"Failed to resolve the API suffix: {e}");
+            apiSuffix = null;
+        }
+    }
+    
+    [HarmonyPrefix]
+    [HarmonyPatch(typeof(Packet), "Obfuscator", typeof(string))]
+    public static bool PreObfuscator(string srcStr, ref string __result)
+    {
+        if (string.IsNullOrEmpty(apiSuffix)) return false;
+        if (srcStr.EndsWith(apiSuffix))
+        {
+            __result = srcStr.Substring(0, srcStr.Length - apiSuffix.Length);
+        }
+        // __result = srcStr.Replace("MaimaiExp", "").Replace("MaimaiChn", "");
+        return false;
+    }
+    
+    [HarmonyPatch]
+    public class EncryptDecrypt
+    {
+        public static IEnumerable<MethodBase> TargetMethods()
+        {
+            var methods = AccessTools.TypeByName("Net.CipherAES").GetMethods();
+            return
+            [
+                methods.FirstOrDefault(it => it.Name == "Encrypt" && it.IsPublic),
+                methods.FirstOrDefault(it => it.Name == "Decrypt" && it.IsPublic)
+            ];
+        }
+    
+        public static bool Prefix(object[] __args, ref object __result)
+        {
+            if (!SinmaiAssist.MainConfig.Fix.DisableEncryption) return true;
+            if (__args.Length == 1)
+            {
+                // public static byte[] Encrypt(byte[] data)
+                // public static byte[] Decrypt(byte[] encryptData)
+                __result = __args[0];
+            }
+            else if (__args.Length == 2)
+            {
+                // public static bool Encrypt(byte[] data, out byte[] encryptData)
+                // public static bool Decrypt(byte[] encryptData, out byte[] plainData)
+                __args[1] = __args[0];
+                __result = true;
+            }
+            return false;
+        }
+    }
+}