有没有办法通过自定义 HTTP 标头获取引用 URL？

Question

我目前正在使用以下函数来获取参考视图：

def get_referer_view(request, default=None):   
    referer = request.META.get('HTTP_REFERER')
    if not referer:
        return default

    # remove the protocol and split the url at the slashes
    referer = re.sub('^https?:\/\/', '', referer).split('/')
    if referer[0] != request.META.get('SERVER_NAME'):
        return default

    # add the slash at the relative path's view and finished
    referer = u'/' + u'/'.join(referer[1:])
    return referer

如果我view由于编程逻辑而重定向，例如..

return HttpResponseRedirect('dashboard')

...有没有一种方法可以在不使用的情况下获取引用视图，HTTP_REFERER以便我可以在重定向中使用该变量view？这并不总是在浏览器的标头中设置。

请注意，因为视图是按语法重定向的，所以我无法使用 POST 来收集数据。

也许可以以某种方式设置和检索自定义标头？

Answer 1

对于那些感兴趣的人，这是我得出的解决方案。技巧是在第一个请求之后设置一个 cookie 来存储view_name或，然后在渲染视图之前path调用它并保存到。request

class MyMiddleware:

    def __init__(self, get_response):
        # One-time configuration and initialization.
        self.get_response = get_response

    def __call__(self, request):
        # Code to be executed for each request before
        # the view (and later middleware) are called.

        # Add the referer cookie be accessible in request.response
        request.referer_view = request.COOKIES.get('referer_view', None)
        request.referer_path = request.COOKIES.get('referer_path', None)
        print('request.referer_view', request.referer_view)
        print('request.referer_path', request.referer_path)

        response = self.get_response(request)
        # Code to be executed for each request/response after
        # the view is called.

        # Set a cookie with the current view name that is cleared each time the view changes
        response.set_cookie('referer_view', request.resolver_match.view_name)
        response.set_cookie('referer_path', request.path)

        return response

每次视图更改时，这些值都会在此循环中更新。