/*
Copyright (C) 2011-2012 de4dot@gmail.com
This file is part of de4dot.
de4dot is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
de4dot is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with de4dot. If not, see .
*/
using System;
using System.Collections.Generic;
namespace de4dot.blocks.cflow {
public abstract class BlockDeobfuscator : IBlocksDeobfuscator {
protected List allBlocks;
protected Blocks blocks;
public virtual void deobfuscateBegin(Blocks blocks) {
this.blocks = blocks;
}
public bool deobfuscate(List allBlocks) {
init(allBlocks);
bool changed = false;
foreach (var block in allBlocks) {
try {
changed |= deobfuscate(block);
}
catch (NullReferenceException) {
// Here if eg. invalid metadata token in a call instruction (operand is null)
}
}
return changed;
}
protected virtual void init(List allBlocks) {
this.allBlocks = allBlocks;
}
protected abstract bool deobfuscate(Block block);
}
}