Django + Deliciouspie-user_logged_in信号不起作用 [英] Django + Tastypie - user_logged_in signal doesn't work

问题描述

我有一个趣味的ModelResource，它定义了可以按预期工作的各种端点.

I have a Tastypie ModelResource defining various endpoints which work as expected.

我现在已经将此ModelResource配置为具有BasicAuthentication:

I've now configured this ModelResource to have BasicAuthentication:

class Meta:
    authentication = BasicAuthentication()

我已经通过Django Admin界面定义了一些测试用户.

I've defined a couple of test users through the Django Admin Interface.

根据 Django 1.7文档，我创建了一个signals.py我在其中注册了几个测试信号:

As per the Django 1.7 Documentation, I've created a signals.py in which I register a couple of test signals:

from django.core.signals import request_finished
from django.contrib.auth.signals import user_logged_in
from django.dispatch import receiver

@receiver(user_logged_in)
def on_login(sender, request, user, **kwargs):
    print('******* LOGIN DETECTED *********')

@receiver(request_finished)
def on_request_finished(sender, **kwargs):
    print('******* REQUEST FINISHED *******')

这是我的AppConfig在apps.py中成功加载的:

This is loaded successfully by my AppConfig in apps.py:

from django.apps import AppConfig

class MyAppConfig(AppConfig):
    name = 'myapp'
    verbose_name = 'verbose description of myapp'

    def ready(self):
        import myapp.signals

我使用Requests库成功与我的API通信，从而为我的一个测试用户提供了基本的身份验证凭据:

I use the Requests library to successfully communicate with my API, providing basic authentication credentials for one of my test users:

auth = HTTPBasicAuth(username, getpass('Enter password: '))
response = requests.get(self.url(endpoint), auth=self.auth, params = params)

REQUEST FINISHED打印显示在Django服务器的输出中，但LOGIN DETECTED没有显示.

The REQUEST FINISHED print shows in the Django server's output, but LOGIN DETECTED does not.

在使用Tastypie时，我们是否必须手动触发登录信号，或者使用除BasicAuthentication之外的其他内置/自定义Authentication类?换句话说，是否期望user_logged_in信号不会自动触发?

Do we have to manually fire a login signal when using Tastypie, or use some other inbuilt/custom Authentication class besides BasicAuthentication? In other words, is it expected that the user_logged_in signal wouldn't fire automatically?

任何信息将不胜感激.

推荐答案

已经检查了Thastypie源代码，通过调用authenticate方法将其绑定到Django auth后端，因此不会触发通常的login周期其中authenticate是一个组件.因此，永远不会调用login方法，因此永远不会触发user_logged_in信号.

Having inspected the Tastypie source code, it ties into the Django auth backend by calling the authenticate method, thus doesn't trigger the usual login cycle of which authenticate is one component. Consequently the login method is never called, and thus the user_logged_in signal never fires.

我最终通过扩展BasicAuthentication并覆盖is_authenticated自己提供了信号，就像这样:

I ended up providing the signal myself by extending BasicAuthentication and overriding is_authenticated like so:

class MyBasicAuthentication(BasicAuthentication):
    def is_authenticated(self, request, **kwargs):
        orig_user = request.user
        has_authenticated = super(MyBasicAuthentication, self).is_authenticated(request, **kwargs)
        if has_authenticated:
            was_authenticated = orig_user == request.user
            if not was_authenticated:
                user_logged_in.send(sender=self.__class__, request=request, user=request.user)
        return has_authenticated

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