Django-registration setup without password

问题

I am trying to make a website, where people only put their email addresses and they are logged in with cookies and all. At a later stage, i will ask them provide password and names, but NO username will be used. I am trying to do this with django-registraition, but i get errors and i have a few problems.

First to disable usernames as a login feature, i put str(time()) instead of username - i was looking for something that will change every time.

However, when I skip the authentication (which i currently don't need) i get error:

'RegistrationProfile' object has no attribute 'backend'

Alternatively, i can leave the authentication but then i don't know how to authenticate it only with email and no password. Also, i don't know how to make the next line work:

auth.login(request, ProfileUser)

If anyone can get me out of here, it would be awesome. Here is some code:

my form Class:

class RegistrationFormCustom(forms.Form):
email = forms.EmailField()
def do_save(self):
    new_u = User(username=str(time()),email= self.cleaned_data.get('email'),)
    new_u.save()
    new_p = Profile.objects.create_profile(new_u)
    new_p.save()
    return new_p

my view:

def registerCustom(request, backend, success_url=None, form_class=None,
         disallowed_url='registration_disallowed',
         template_name='registration/registration_form.html',
         extra_context=None,
     initial={}):

form = RegistrationFormCustom(initial=initial)
if request.method == 'POST':
    form = RegistrationFormCustom(initial=initial, data=request.POST)
    if form.is_valid():
        profile = form.do_save()
        profile = auth.authenticate(username = profile.user.email, password = form.cleaned_data.get('pass1'))
        print(profile)
        auth.login(request, profile)
        return redirect('/')

    else:
        pass

return render_jinja(request, 'registration/registration_form.html',
        type="register",
        form = form
        )

and i will post any other snipped required happily

回答1:

You're getting the 'RegistrationProfile' object has no attribute 'backend' error because the user is not yet authenticated. To log someone in, you have to call the authenticate method first, which requires a password. So, what you can do instead, is this:

from django.contrib.auth import load_backend, login, logout
from django.conf import settings

def _login_user(request, user):
    """
    Log in a user without requiring credentials (using ``login`` from
    ``django.contrib.auth``, first finding a matching backend).

    """
    if not hasattr(user, 'backend'):
        for backend in settings.AUTHENTICATION_BACKENDS:
            if user == load_backend(backend).get_user(user.pk):
                user.backend = backend
                break
    if hasattr(user, 'backend'):
        return login(request, user)

Then, to log someone in, just call the _login_user function with the request and User model. (This will be profile.user in your case, probably) Do this instead of calling auth.login. I'm not sure on how you're going to determine whether this is a valid user or not, without a password or username, but I'll leave that to you. If you still have trouble, let me know.

Short Explanation:

What basically happens here is that Django requires a user to be authenticated in order to be logged in via the login function. That authentication is usually done by the authenticate function, which requires a username and password, and checks whether the supplied password matches the hashed version in the database. If it does, it adds an authentication backend to the User model.

So, since you don't have a password and username, you just have to write your own method for adding the authentication backend to the User model. And that's what my _login_user) function does - if the user is already authenticated, it just calls login, otherwise, it first adds the default backend to the User model, without checking for a correct username and password (like authenticate does).

回答2:

For others reading this thread, I got a similar error message when I was using User.objects.create() instead of User.objects.create_user(). Basically, the first method was setting a clear password whereas create_user encrypts the password. Clear passwords will fail to authenticate. Check your database, if you have passwords set in the clear, then it's likely you need to use create_user() instead.

The author's request could be fixed by simply setting a default user and password using create_user() instead of just user.save().

回答3:

You can create a known password (put it in settings.py ) and use that as though the user entered it. Create the user with this and authenticate the user with this.

来源：https://stackoverflow.com/questions/5843319/django-registration-setup-without-password

标签

django

authentication

registration

django-registration