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[O] Support SDGA and other game version in one binary

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Merge pull request #61

* Merge targets

* Merge branch 'v1-dev' into fork/Menci/merge-targets

* [O] Move Shim to AquaMai.Helpers

---------

Co-authored-by: Clansty <i@gao4.pw>
This commit is contained in:
Menci
2024-10-13 21:35:13 +08:00
committed by Clansty
parent e67b68aa20
commit 81e0232712
4 changed files with 94 additions and 66 deletions
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69
AquaMai/Fix/RemoveEncryption.cs
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@@ -2,7 +2,6 @@
using System.Linq;
using System.Reflection;
using HarmonyLib;
using MelonLoader;
using Net.Packet;
namespace AquaMai.Fix;
@@ -11,65 +10,41 @@ public class RemoveEncryption
{
[HarmonyPrefix]
[HarmonyPatch(typeof(Packet), "Obfuscator", typeof(string))]
private static bool PreObfuscator(string srcStr, ref string __result)
public static bool PreObfuscator(string srcStr, ref string __result)
{
__result = srcStr.Replace("MaimaiExp", "").Replace("MaimaiChn", "");
return false;
}
[HarmonyPatch]
public class Encrypt
public class EncryptDecrypt
{
public static IEnumerable<MethodBase> TargetMethods()
{
# if SDGA145
return [AccessTools.Method("Net.CipherAES:Encrypt", [typeof(byte[])])];
# else
return [AccessTools.TypeByName("Net.CipherAES").GetMethods().FirstOrDefault(it => it.Name == "Encrypt")];
# endif
var methods = AccessTools.TypeByName("Net.CipherAES").GetMethods();
return
[
methods.FirstOrDefault(it => it.Name == "Encrypt" && it.IsPublic),
methods.FirstOrDefault(it => it.Name == "Decrypt" && it.IsPublic)
];
}
# if SDGA145
public static bool Prefix(byte[] data, ref byte[] __result)
public static bool Prefix(object[] __args, ref object __result)
{
__result = data;
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;
}
# else
public static bool Prefix(byte[] data, out byte[] encryptData, ref bool __result)
{
encryptData = data;
__result = true;
return false;
}
# endif
}
[HarmonyPatch]
public class Decrypt
{
public static IEnumerable<MethodBase> TargetMethods()
{
# if SDGA145
return [AccessTools.Method("Net.CipherAES:Decrypt", [typeof(byte[])])];
# else
return [AccessTools.TypeByName("Net.CipherAES").GetMethods().FirstOrDefault(it => it.Name == "Decrypt")];
# endif
}
# if SDGA145
public static bool Prefix(byte[] encryptData, ref byte[] __result)
{
__result = encryptData;
return false;
}
# else
public static bool Prefix(byte[] encryptData, out byte[] plainData, ref bool __result)
{
plainData = encryptData;
__result = true;
return false;
}
# endif
}
}