private void Dispose(bool disposing)
{
if (_savedToken.Handle != IntPtr.Zero)
{
try {} finally {
UnsafeNativeMethods.CloseHandle(_savedToken.Handle);
_savedToken = new HandleRef(this, IntPtr.Zero);
}
}
}
internal static bool IsImpersonating()
{
IntPtr token = GetCurrentToken();
if (token == IntPtr.Zero)
{
return(false);
}
UnsafeNativeMethods.CloseHandle(token);
return(true);
}
internal void Resume()
{
if (_token != IntPtr.Zero)
{
bool impersonationFailed = false;
if (_revertSucceeded)
{
if (UnsafeNativeMethods.SetThreadToken(IntPtr.Zero, _token) == 0)
{
impersonationFailed = true;
}
}
UnsafeNativeMethods.CloseHandle(_token);
if (impersonationFailed)
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Cannot_impersonate));
}
}
}
