undead-universal-patch-il2cpp/Patches/ImageSignature.cs

using System;
using HarmonyLib;
using System.Reflection;
using undead_universal_patch_il2cpp.Core;

namespace undead_universal_patch_il2cpp.Patches
{
    [HarmonyPatch]
    public class ImageSignaturePatch
    {
        public static string TargetTypeName = "Images";
        public static string TargetMethodName = "VerifySignature";
        public static string Description = "Image signature patch";
        public static Type targetType = AccessTools.TypeByName(TargetTypeName);

        public static bool Prepare()
        {
            if (!GenericConfig.ImageSignaturePatch.Value) return false;
            if (targetType == null)
            {
                Plugin.Log.LogWarning($"'{Description}' disabled. The type for this patch was not found.");
                return false;
            }
            if (targetType.GetMethod(TargetMethodName) == null)
            {
                Plugin.Log.LogWarning($"'{Description}' disabled. The method for this patch was not found.");
                return false;
            }

            Plugin.Log.LogInfo($"'{Description}' succeeded validation.");
            return true;
        }

        public static MethodBase TargetMethod() => targetType.GetMethod(TargetMethodName);

        public static bool Prefix(ref bool __result)
        {
            if (GenericConfig.PatchDebug.Value) Plugin.Log.LogDebug("Verified image signature");
            __result = true;
            return false;
        }
    }
}