public static AuxProcess CreateProcess(string fileName)
{
return(new AuxProcess {
_proc = Environment.UserInteractive?Process.Start(new ProcessStartInfo {
CreateNoWindow = true,
WorkingDirectory = Directory.GetCurrentDirectory(),
FileName = fileName,
UseShellExecute = false,
RedirectStandardInput = true,
RedirectStandardOutput = true,
StandardOutputEncoding = Encoding.GetEncoding(866),
RedirectStandardError = true,
StandardErrorEncoding = Encoding.GetEncoding(866)
}):ImpersonationUtils.RunAsCurrentUser(fileName)
});
}
private static Process _LaunchProcessAsUser(string fileName, IntPtr token, IntPtr envBlock, out IntPtr hStdIn, out IntPtr hStdOut, out IntPtr hStdError)
{
var _saProcess = new _SecurityAttributes {
nLength = Marshal.SizeOf(typeof(_SecurityAttributes))
};
var _saThread = new _SecurityAttributes {
nLength = Marshal.SizeOf(typeof(_SecurityAttributes))
};
var _pi = new _ProcessInformation();
var _si = new _StartupInfo {
cb = Marshal.SizeOf(typeof(_StartupInfo)),
lpDesktop = @"WinSta0\Default",
wShowWindow = SW.Hide,
dwFlags = StartFlags.UseShowWindow | StartFlags.UseStdHandles
};
ImpersonationUtils._CreatePipe(out _si.hStdInput, out hStdIn);
if (!Win32.SetHandleInformation(_si.hStdInput, HandleFlags.Inherit, HandleFlags.Inherit))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "SetHandleInformation failed.");
}
ImpersonationUtils._CreatePipe(out hStdOut, out _si.hStdOutput);
if (!Win32.SetHandleInformation(_si.hStdOutput, HandleFlags.Inherit, HandleFlags.Inherit))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "SetHandleInformation failed.");
}
ImpersonationUtils._CreatePipe(out hStdError, out _si.hStdError);
if (!Win32.SetHandleInformation(_si.hStdError, HandleFlags.Inherit, HandleFlags.Inherit))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "SetHandleInformation failed.");
}
if (!Win32.CreateProcessAsUser(token, null, fileName, _saProcess, _saThread, true, ProcessCreationFlags.CreateUnicodeEnvironment, envBlock, null, _si, _pi))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "CreateProcessAsUser failed.");
}
Win32.CloseHandle(_pi.hProcess);
Win32.CloseHandle(_pi.hThread);
Win32.CloseHandle(_si.hStdInput);
Win32.CloseHandle(_si.hStdOutput);
Win32.CloseHandle(_si.hStdError);
return(Process.GetProcessById(_pi.dwProcessId));
}
public static Process RunAsCurrentUser(string fileName)
{
var _token = ImpersonationUtils._GetPrimaryToken();
try {
for (var _env = IntPtr.Zero; Win32.CreateEnvironmentBlock(ref _env, _token, false) && _env != IntPtr.Zero;)
{
try {
IntPtr _hStdIn, _hStdOut, _hStdError;
var _result = ImpersonationUtils._LaunchProcessAsUser(fileName, _token, _env, out _hStdIn, out _hStdOut, out _hStdError);
var _type = typeof(Process);
for (var _field = _type.GetField("standardInput", BindingFlags.Instance | BindingFlags.NonPublic); _field != null && _hStdIn != IntPtr.Zero && _hStdIn != new IntPtr(-1);)
{
_field.SetValue(_result, new StreamWriter(new FileStream(new SafeFileHandle(_hStdIn, true), FileAccess.Write), Encoding.GetEncoding(866))
{
AutoFlush = true
});
break;
}
for (var _field = _type.GetField("standardOutput", BindingFlags.Instance | BindingFlags.NonPublic); _field != null && _hStdOut != IntPtr.Zero && _hStdOut != new IntPtr(-1);)
{
_field.SetValue(_result, new StreamReader(new FileStream(new SafeFileHandle(_hStdOut, true), FileAccess.Read), Encoding.GetEncoding(866), true));
break;
}
for (var _field = _type.GetField("standardError", BindingFlags.Instance | BindingFlags.NonPublic); _field != null && _hStdError != IntPtr.Zero && _hStdError != new IntPtr(-1);)
{
_field.SetValue(_result, new StreamReader(new FileStream(new SafeFileHandle(_hStdError, true), FileAccess.Read), Encoding.GetEncoding(866), true));
break;
}
return(_result);
} finally {
Win32.DestroyEnvironmentBlock(_env);
}
}
throw new Win32Exception(Marshal.GetLastWin32Error(), "CreateEnvironmentBlock failed.");
} finally {
Win32.CloseHandle(_token);
}
}
public static IDisposable ImpersonateCurrentUser()
{
return(new WindowsIdentity(ImpersonationUtils._GetPrimaryToken()).Impersonate());
}
