views.py 文件源码

def _login_redirect_url(request, fallback_to=None):
    redirect_to = request.POST.get('next', request.GET.get('next', ''))
    if not redirect_to or not is_safe_url(url=redirect_to, host=request.get_host()):
        return fallback_to or django_settings.LOGIN_REDIRECT_URL
    return redirect_to