protected override void Execute(ConfuserContext context, ProtectionParameters parameters)
{
foreach (ModuleDef module in parameters.Targets.OfType <ModuleDef>())
{
CFHelper cFHelper = new CFHelper();
foreach (TypeDef type in module.Types)
{
foreach (MethodDef method in type.Methods)
{
if (method.HasBody && method.Body.Instructions.Count > 0 && !method.IsConstructor)
{
if (!cFHelper.HasUnsafeInstructions(method))
{
if (DnlibUtils2.Simplify(method))
{
Blockss blocks = cFHelper.GetBlocks(method);
if (blocks.blocks.Count != 1)
{
Run(cFHelper, method, blocks, context);
}
DnlibUtils2.Optimize(method);
}
}
}
}
}
}
}
public void Run(CFHelper cFHelper, MethodDef method, Blockss blocks, ConfuserContext context)
{
blocks.Scramble(out blocks);
method.Body.Instructions.Clear();
Local local = new Local(context.CurrentModule.CorLibTypes.Int32);
method.Body.Variables.Add(local);
Instruction target = Instruction.Create(OpCodes.Nop);
Instruction instr = Instruction.Create(OpCodes.Br, target);
foreach (Instruction instruction in cFHelper.Calc(0))
{
method.Body.Instructions.Add(instruction);
}
method.Body.Instructions.Add(Instruction.Create(OpCodes.Stloc, local));
method.Body.Instructions.Add(Instruction.Create(OpCodes.Br, instr));
method.Body.Instructions.Add(target);
foreach (Block block in blocks.blocks)
{
if (block != blocks.getBlock((blocks.blocks.Count - 1)))
{
method.Body.Instructions.Add(Instruction.Create(OpCodes.Ldloc, local));
foreach (Instruction instruction in cFHelper.Calc(block.ID))
{
method.Body.Instructions.Add(instruction);
}
method.Body.Instructions.Add(Instruction.Create(OpCodes.Ceq));
Instruction instruction4 = Instruction.Create(OpCodes.Nop);
method.Body.Instructions.Add(Instruction.Create(OpCodes.Brfalse, instruction4));
foreach (Instruction instruction in block.instructions)
{
method.Body.Instructions.Add(instruction);
}
foreach (Instruction instruction in cFHelper.Calc(block.nextBlock))
{
method.Body.Instructions.Add(instruction);
}
method.Body.Instructions.Add(Instruction.Create(OpCodes.Stloc, local));
method.Body.Instructions.Add(instruction4);
}
}
method.Body.Instructions.Add(Instruction.Create(OpCodes.Ldloc, local));
foreach (Instruction instruction in cFHelper.Calc(blocks.blocks.Count - 1))
{
method.Body.Instructions.Add(instruction);
}
method.Body.Instructions.Add(Instruction.Create(OpCodes.Ceq));
method.Body.Instructions.Add(Instruction.Create(OpCodes.Brfalse, instr));
method.Body.Instructions.Add(Instruction.Create(OpCodes.Br, blocks.getBlock((blocks.blocks.Count - 1)).instructions[0]));
method.Body.Instructions.Add(instr);
foreach (Instruction lastBlock in blocks.getBlock((blocks.blocks.Count - 1)).instructions)
{
method.Body.Instructions.Add(lastBlock);
}
}
