/*
Copyright (C) 2011-2013 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;
using System.IO;
using dnlib.DotNet;
using AssemblyData;
using de4dot.code.AssemblyClient;
namespace de4dot.code.deobfuscators.ILProtector {
// Calls class to dynamically decrypt methods, then restores them.
class DynamicMethodsRestorer : MethodsDecrypterBase {
public DynamicMethodsRestorer(ModuleDefMD module, MainType mainType)
: base(module, mainType) {
}
protected override void DecryptInternal() {
CheckRuntimeFiles();
IList decryptedData;
var serverVersion = NewProcessAssemblyClientFactory.GetServerClrVersion(module);
using (var client = new NewProcessAssemblyClientFactory(serverVersion).Create(AssemblyServiceType.Generic)) {
client.Connect();
client.WaitConnected();
client.GenericService.LoadUserService(typeof(DynamicMethodsDecrypterService), null);
client.GenericService.LoadAssembly(module.Location);
decryptedData = client.GenericService.SendMessage(DynamicMethodsDecrypterService.MSG_DECRYPT_METHODS, new object[] { GetMethodIds() }) as IList;
}
if (decryptedData == null)
throw new ApplicationException("Unknown return value from dynamic methods decrypter service");
foreach (var info in decryptedData)
methodInfos[info.id] = info;
}
void CheckRuntimeFiles() {
foreach (var info in mainType.RuntimeFileInfos) {
if (!File.Exists(info.PathName))
Logger.w(string.Format("ILProtector runtime file '{0}' is missing.", info.PathName));
}
}
IList GetMethodIds() {
var ids = new List();
foreach (var type in module.GetTypes()) {
foreach (var method in type.Methods) {
int? id = GetMethodId(method);
if (id == null)
continue;
ids.Add(id.Value);
ids.Add((int)method.Rid);
}
}
return ids;
}
}
}