static void Main(string[] args)
{
// Create directories if they do not exist already.
if (!Directory.Exists(BuildConstants.LauncherDirectory))
{
Directory.CreateDirectory(BuildConstants.LauncherDirectory);
}
if (!Directory.Exists(BuildConstants.SymbolsDirectory))
{
Directory.CreateDirectory(BuildConstants.SymbolsDirectory);
}
Updater.Run(); // Check if there are any pending osu! updates.
// Check if osu! executable exists.
if (!File.Exists(OsuPath))
{
Console.WriteLine("osu!Launcher could not find \"osu!.exe\", please make sure it exists in your working directory!");
Console.ReadKey();
return;
}
try
{
Symbols.Load();
}
catch (Exception exception)
{
Console.WriteLine($"It looks like your osu! version is unsupported by osu!Launcher, sorry! Message = {exception.Message}");
Console.ReadKey();
return;
}
Patcher.Load();
Patcher.Start();
}
/// <summary>
/// Loads and patches osu!.
/// </summary>
public static void Load()
{
OsuAssembly = Assembly.LoadFile(Program.OsuPath);
try
{
// Fetch classes
OsuMain._OsuMain = OsuAssembly.GetType(Symbols.GetSymbol("OsuMain"));
pWebRequest._pWebRequest = OsuAssembly.GetType(Symbols.GetSymbol("pWebRequest"));
// Fetch OsuMain methods
OsuMain.OsuMain_FullPath = OsuMain._OsuMain.GetMethod(Symbols.GetSymbol("OsuMain_FullPath"), BindingFlags.Static | BindingFlags.NonPublic);
OsuMain.OsuMain_FullPath_patched = typeof(OsuMain).GetMethod("FullPath");
OsuMain.OsuMain_Filename = OsuMain._OsuMain.GetMethod(Symbols.GetSymbol("OsuMain_Filename"), BindingFlags.Static | BindingFlags.NonPublic);
OsuMain.OsuMain_Filename_patched = typeof(OsuMain).GetMethod("Filename");
// Fetch pWebRequest methods
pWebRequest.pWebRequest_set_Url = pWebRequest._pWebRequest.GetMethod(Symbols.GetSymbol("pWebRequest_set_Url"), BindingFlags.Instance | BindingFlags.NonPublic);
pWebRequest.pWebRequest_set_Url_patched = typeof(pWebRequest).GetMethod("set_Url");
pWebRequest.pWebRequest_checkCertificate = pWebRequest._pWebRequest.GetMethod(Symbols.GetSymbol("pWebRequest_checkCertificate"), BindingFlags.Instance | BindingFlags.NonPublic);
pWebRequest.pWebRequest_checkCertificate_patched = typeof(pWebRequest).GetMethod("checkCertificate");
}
catch (Exception exception)
{
Console.WriteLine($"It looks like your osu! version is unsupported by osu!Launcher, sorry! Message = {exception.Message}");
Console.ReadKey();
return;
}
// Unsafe because it requires some pointer hacks.
unsafe
{
try
{
// Patch executable checks.
Console.Write("Patching executable checks... ");
int *p_OsuMain_FullPath = (int *)OsuMain.OsuMain_FullPath.MethodHandle.Value.ToPointer() + 2;
int *p_OsuMain_FullPath_patched = (int *)OsuMain.OsuMain_FullPath_patched.MethodHandle.Value.ToPointer() + 2;
*p_OsuMain_FullPath = *p_OsuMain_FullPath_patched;
int *p_OsuMain_Filename = (int *)OsuMain.OsuMain_Filename.MethodHandle.Value.ToPointer() + 2;
int *p_OsuMain_Filename_patched = (int *)OsuMain.OsuMain_Filename_patched.MethodHandle.Value.ToPointer() + 2;
*p_OsuMain_Filename = *p_OsuMain_Filename_patched;
Console.WriteLine("OK!");
// Patch URL & certificate checks.
Console.Write("Patching URL & certificate checks... ");
int *p_pWebRequest_set_Url = (int *)pWebRequest.pWebRequest_set_Url.MethodHandle.Value.ToPointer() + 2;
int *p_pWebRequest_set_Url_patched = (int *)pWebRequest.pWebRequest_set_Url_patched.MethodHandle.Value.ToPointer() + 2;
*p_pWebRequest_set_Url = *p_pWebRequest_set_Url_patched;
int *p_pWebRequest_checkCertificate = (int *)pWebRequest.pWebRequest_checkCertificate.MethodHandle.Value.ToPointer() + 2;
int *p_pWebRequest_checkCertificate_patched = (int *)pWebRequest.pWebRequest_checkCertificate_patched.MethodHandle.Value.ToPointer() + 2;
*p_pWebRequest_checkCertificate = *p_pWebRequest_checkCertificate_patched;
Console.WriteLine("OK!");
}
catch (Exception exception)
{
Console.WriteLine($"\nIt looks like your osu! version is unsupported by osu!Launcher, sorry! Message = {exception.Message}");
Console.ReadKey();
return;
}
}
}
