human
Solve the following python programming problem given the following code:
@simple_decorator
def check_local_site_access(view_func):
assistant
#Here is the Python code you requested.

    """Checks if a user has access to a Local Site.
    This checks whether or not the logged-in user is either a member of
    a Local Site or if the user otherwise has access to it.
    given local site. If not, this shows a permission denied page.
    """
    def _check(request, local_site_name=None, *args, **kwargs):
        if local_site_name:
            if (not request.local_site):
                raise Http404
            local_site = request.local_site
            if (not local_site.is_accessible_by(request.user)):
                if (local_site.public or request.user.is_authenticated()):
                    response = render_to_response('permission_denied.html', RequestContext(request))
                    response.status_code = 403
                    return response
                else:
                    return HttpResponseRedirect(('%s?next_page=%s' % (reverse('login'), request.get_full_path())))
        else:
            local_site = None
        return view_func(request, local_site=local_site, *args, **kwargs)
    return _check