Spring & Security: limit uploads to authenticated users - spring

Question

I'm facing a security problem regarding file uploads.
How do I limit file uploads to specific user roles?
I'm using #PreAuthorize("hasRole('USER')"), but it is uploading the file first and then checking the role. You can especially see this when file upload size is exceeded. User will get an upload size exceeded exception instead of redirecting to the login-form.
This is how my controller looks like:
#Controller
#PreAuthorize("hasRole('USER')")
#Secured("ROLE_USER") // added this just to see if it makes a difference, it doesn't
#RequestMapping(value = "/self/upload", produces = "application/json")
public class JsonUserSelfUpload {
...
#RequestMapping(value = "", method = RequestMethod.POST, consumes="multipart/form-data")
public ModelAndView fileUpload(
#RequestParam(value = "file", required = true) MultipartFile inputFile,
#RequestParam(value = "param1", defaultValue = "") String type,
HttpServletResponse response
) throws Exception {
...
}
}
Anyone know how to secure file uploads to specific roles?
Edit, to be more specific:
I want to reject uploads if user is not authenticated. By reject I mean, close connection before the upload actually finishes. Not sure if spring is capable in doing this or I'd need a filter to reject uploads (multipart).
Update:
Tried with a filter with no success either.
Seems like one has no way to close the connection.
This is what my filter looks like:
public class RestrictUploadFilter implements Filter{
#Override
public void init(FilterConfig arg0) throws ServletException {
}
#Override
public void destroy() {
}
#Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) res;
String contentType = request.getContentType();
if (HttpMethods.POST.equals(request.getMethod()) && contentType != null && contentType.toLowerCase().indexOf("multipart/form-data") > -1) {
UserSession session = SpringHelper.getUserSession();
if (session != null && session.getRoles().contains(UserRole.USER)) {
// user is allowed to upload
chain.doFilter(req, res);
} else {
// access denied
response.setStatus(HttpStatus.FORBIDDEN_403);
response.setHeader("Connection", "close");
response.flushBuffer();
}
} else {
chain.doFilter(req, res);
}
}
}