[RF] AquaMai configuration refactor (#82)

更新了配置文件格式，原有的配置文件将被自动无缝迁移，详情请见新的配置文件中的注释（例外：`SlideJudgeTweak` 不再默认启用）
旧配置文件将被重命名备份，如果更新到此版本遇到 Bug 请联系我们

Updated configuration file schema. The old config file will be migrated automatically and seamlessly. See the comments in the new configuration file for details. (Except for `SlideJudgeTweak` is no longer enabled by default)
Your old configuration file will be renamed as a backup. If you encounter any bug with this version, please contact us.

AquaMai/AquaMai.Mods/GameSystem/RemoveEncryption.cs

@@ -0,0 +1,63 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using AquaMai.Config.Attributes;
+using HarmonyLib;
+using Net.Packet;
+
+namespace AquaMai.Mods.GameSystem;
+
+[ConfigSection(
+    en: """
+        If you are using an unmodified client, requests to the server will be encrypted by default, but requests to the private server should not be encrypted.
+        With this option enabled, the connection will not be encrypted, and the suffix added by different versions of the client to the API names are also removed.
+        Please keep this option enabled normally.
+        """,
+    zh: """
+        如果你在用未经修改的客户端，会默认加密到服务器的连接，而连接私服的时候不应该加密
+        开了这个选项之后就不会加密连接了，同时也会移除不同版本的客户端可能会对 API 接口加的后缀
+        正常情况下，请保持这个选项开启
+        """,
+    defaultOn: true)]
+public class RemoveEncryption
+{
+    [HarmonyPrefix]
+    [HarmonyPatch(typeof(Packet), "Obfuscator", typeof(string))]
+    public static bool PreObfuscator(string srcStr, ref string __result)
+    {
+        __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 (__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;
+        }
+    }
+}