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Implement IL2CPP deobfuscation map support

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Bepis committed 2021-07-26 10:49:11 +10:00
1 parent 3e71319505
commit b47e22d0b7
1 file changed
+37 -9
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BepInEx.IL2CPP/ProxyAssemblyGenerator.cs
+37 -9
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@@ -1,6 +1,8 @@
using System;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net.Http;
using System.Security.Cryptography;
using System.Text;
@@ -194,14 +196,7 @@ namespace BepInEx.IL2CPP
var executor = new Il2CppExecutor(metadata, il2Cpp);
var dummy = new DummyAssemblyGenerator(executor, true);
listener.DoPreloaderLog("Executing Il2CppUnhollower generator", LogLevel.Info);
LogSupport.InfoHandler += s => listener.DoUnhollowerLog(s, LogLevel.Info);
LogSupport.WarningHandler += s => listener.DoUnhollowerLog(s, LogLevel.Warning);
LogSupport.TraceHandler += s => listener.DoUnhollowerLog(s, LogLevel.Debug);
LogSupport.ErrorHandler += s => listener.DoUnhollowerLog(s, LogLevel.Error);
var unhollowerOptions = new UnhollowerOptions
{
GameAssemblyPath = GameAssemblyPath,
@@ -212,6 +207,39 @@ namespace BepInEx.IL2CPP
NoCopyUnhollowerLibs = true
};
string renameMapLocation = Path.Combine(Paths.BepInExRootPath, "DeobfuscationMap.csv.gz");
if (File.Exists(renameMapLocation))
{
listener.DoPreloaderLog("Parsing deobfuscation rename mappings", LogLevel.Info);
using var fileStream = new FileStream(renameMapLocation, FileMode.Open, FileAccess.Read, FileShare.Read);
using var gzipStream = new GZipStream(fileStream, CompressionMode.Decompress);
using var reader = new StreamReader(gzipStream, Encoding.UTF8, false);
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
if (string.IsNullOrWhiteSpace(line) || line.StartsWith("#"))
continue;
var mapping = line.Split(';');
if (mapping.Length != 2)
continue;
unhollowerOptions.RenameMap[mapping[0]] = mapping[1];
}
}
listener.DoPreloaderLog("Executing Il2CppUnhollower generator", LogLevel.Info);
LogSupport.InfoHandler += s => listener.DoUnhollowerLog(s, LogLevel.Info);
LogSupport.WarningHandler += s => listener.DoUnhollowerLog(s, LogLevel.Warning);
LogSupport.TraceHandler += s => listener.DoUnhollowerLog(s, LogLevel.Debug);
LogSupport.ErrorHandler += s => listener.DoUnhollowerLog(s, LogLevel.Error);
try
{
Program.Main(unhollowerOptions);