sheet-rat/Server/MindLated/Protection/Arithmetic/Arithmetic.cs

// Decompiled with JetBrains decompiler
// Type: MindLated.Protection.Arithmetic.Arithmetic
// Assembly: Server, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
// MVID: 33673F0A-7F43-4A2B-BC08-8E59A15CB7DA
// Assembly location: C:\Users\Admin\Desktop\Sheet RAT 2.5\Server.exe

using dnlib.DotNet;
using dnlib.DotNet.Emit;
using MindLated.Protection.Arithmetic.Functions;
using MindLated.Protection.Arithmetic.Functions.Maths;
using MindLated.Protection.Arithmetic.Utils;
using System;
using System.Windows.Forms;
using System.Collections.Generic;
using System.Reflection;

//#nullable disable
namespace MindLated.Protection.Arithmetic {

public static class Arithmetic
{
  private static ModuleDef _moduleDef1;
  public static readonly List<Function> Tasks = new List<Function>()
  {
    (Function) new Add(),
    (Function) new Sub(),
    (Function) new Div(),
    (Function) new Mul(),
    (Function) new Xor(),
    (Function) new Abs(),
    (Function) new Log(),
    (Function) new Log10(),
    (Function) new Sin(),
    (Function) new Cos(),
    (Function) new Floor(),
    (Function) new Round(),
    (Function) new Tan(),
    (Function) new Tanh(),
    (Function) new Sqrt(),
    (Function) new Ceiling(),
    (Function) new Truncate()
  };

  public static void Execute(ModuleDef module)
  {
    MindLated.Protection.Arithmetic.Arithmetic._moduleDef1 = module;
    MindLated.Protection.Arithmetic.Generator.Generator generator = new MindLated.Protection.Arithmetic.Generator.Generator();
    foreach (TypeDef type in (IEnumerable<TypeDef>) module.Types)
    {
      foreach (MethodDef method in (IEnumerable<MethodDef>) type.Methods)
      {
        if (method.HasBody && !method.DeclaringType.IsGlobalModuleType)
        {
          for (int index = 0; index < method.Body.Instructions.Count; ++index)
          {
            if (ArithmeticUtils.CheckArithmetic(method.Body.Instructions[index]))
            {
              if (method.Body.Instructions[index].GetLdcI4Value() < 0)
              {
                List<Instruction> body = MindLated.Protection.Arithmetic.Arithmetic.GenerateBody(MindLated.Protection.Arithmetic.Arithmetic.Tasks[generator.Next(5)].Arithmetic(method.Body.Instructions[index], module));
                method.Body.Instructions[index].OpCode = OpCodes.Nop;
                foreach (Instruction instruction in body)
                {
                  method.Body.Instructions.Insert(index + 1, instruction);
                  ++index;
                }
              }
              else
              {
                List<Instruction> body = MindLated.Protection.Arithmetic.Arithmetic.GenerateBody(MindLated.Protection.Arithmetic.Arithmetic.Tasks[generator.Next(MindLated.Protection.Arithmetic.Arithmetic.Tasks.Count)].Arithmetic(method.Body.Instructions[index], module));
                method.Body.Instructions[index].OpCode = OpCodes.Nop;
                foreach (Instruction instruction in body)
                {
                  method.Body.Instructions.Insert(index + 1, instruction);
                  ++index;
                }
              }
            }
          }
        }
      }
    }
  }

  public static List<Instruction> GenerateBody(ArithmeticVt arithmeticVTs)
  {
    List<Instruction> body = new List<Instruction>();
    if (MindLated.Protection.Arithmetic.Arithmetic.IsArithmetic(arithmeticVTs.GetArithmetic()))
    {
      body.Add(new Instruction(OpCodes.Ldc_R8, (object) arithmeticVTs.GetValue().GetX()));
      body.Add(new Instruction(OpCodes.Ldc_R8, (object) arithmeticVTs.GetValue().GetY()));
      if (arithmeticVTs.GetToken().GetOperand() != null)
        body.Add(new Instruction(OpCodes.Call, arithmeticVTs.GetToken().GetOperand()));
      body.Add(new Instruction(arithmeticVTs.GetToken().GetOpCode()));
      body.Add(new Instruction(OpCodes.Call, (object) MindLated.Protection.Arithmetic.Arithmetic._moduleDef1.Import((MethodBase) typeof (Convert).GetMethod("ToInt32", new Type[1]
      {
        typeof (double)
      }))));
    }
    else if (MindLated.Protection.Arithmetic.Arithmetic.IsXor(arithmeticVTs.GetArithmetic()))
    {
      body.Add(new Instruction(OpCodes.Ldc_I4, (object) (int) arithmeticVTs.GetValue().GetX()));
      body.Add(new Instruction(OpCodes.Ldc_I4, (object) (int) arithmeticVTs.GetValue().GetY()));
      body.Add(new Instruction(arithmeticVTs.GetToken().GetOpCode()));
      body.Add(new Instruction(OpCodes.Conv_I4));
    }
    return body;
  }

  private static bool IsArithmetic(ArithmeticTypes arithmetic)
  {
    return arithmetic == ArithmeticTypes.Add || arithmetic == ArithmeticTypes.Sub || arithmetic == ArithmeticTypes.Div || arithmetic == ArithmeticTypes.Mul || arithmetic == ArithmeticTypes.Abs || arithmetic == ArithmeticTypes.Log || arithmetic == ArithmeticTypes.Log10 || arithmetic == ArithmeticTypes.Truncate || arithmetic == ArithmeticTypes.Sin || arithmetic == ArithmeticTypes.Cos || arithmetic == ArithmeticTypes.Floor || arithmetic == ArithmeticTypes.Round || arithmetic == ArithmeticTypes.Tan || arithmetic == ArithmeticTypes.Tanh || arithmetic == ArithmeticTypes.Sqrt || arithmetic == ArithmeticTypes.Ceiling;
  }

  private static bool IsXor(ArithmeticTypes arithmetic) => arithmetic == ArithmeticTypes.Xor;
}
}