80 lines
2.2 KiB
C#
80 lines
2.2 KiB
C#
/*
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Copyright (C) 2011-2015 de4dot@gmail.com
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This file is part of de4dot.
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de4dot is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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de4dot is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with de4dot. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Reflection;
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using System.Collections.Generic;
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using dnlib.DotNet;
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using AssemblyData;
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namespace de4dot.code.deobfuscators.ILProtector {
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sealed class DynamicMethodsDecrypterService : IUserGenericService {
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public const int MSG_DECRYPT_METHODS = 0;
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public const int MSG_HAS_DELEGATE_TYPE_FLAG = 1;
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Module reflObfModule;
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ModuleDefMD obfModule;
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bool hasDelegateTypeFlag;
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[CreateUserGenericService]
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public static IUserGenericService Create() {
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return new DynamicMethodsDecrypterService();
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}
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public void Dispose() {
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if (obfModule != null)
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obfModule.Dispose();
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obfModule = null;
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}
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public void AssemblyLoaded(Assembly assembly) {
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this.reflObfModule = assembly.ManifestModule;
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this.obfModule = ModuleDefMD.Load(reflObfModule);
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}
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public object HandleMessage(int msg, object[] args) {
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switch (msg) {
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case MSG_DECRYPT_METHODS:
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return DecryptMethods(args[0] as IList<int>);
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case MSG_HAS_DELEGATE_TYPE_FLAG:
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return hasDelegateTypeFlag;
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default:
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throw new ApplicationException(string.Format("Invalid msg: {0:X8}", msg));
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}
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}
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IList<DecryptedMethodInfo> DecryptMethods(IList<int> methodIds) {
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using (var decrypter = new DynamicMethodsDecrypter(obfModule, reflObfModule)) {
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decrypter.Initialize();
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var infos = new List<DecryptedMethodInfo>();
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for (int i = 0; i < methodIds.Count; i += 2)
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infos.Add(decrypter.Decrypt(methodIds[i], (uint)methodIds[i + 1]));
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hasDelegateTypeFlag = decrypter.MethodReaderHasDelegateTypeFlag;
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return infos;
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}
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}
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}
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}
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