Accounts not authenticating during logging in in Django

Question

I am able to register accounts and upload the data towards the MYSQL database, but the accounts are not "authentication"

views.py

from django.core.urlresolvers import reverse_lazy
from django.views.generic import FormView, TemplateView
from django.shortcuts import redirect, get_object_or_404, render, render_to_response
from django.contrib.auth import authenticate, login, logout
from django.contrib.auth.models import User
from django.contrib.auth.decorators import login_required
from django.template import RequestContext
from django.contrib import messages, auth
from django.http import HttpResponseRedirect, HttpResponse
from django.core.context_processors import csrf
from mongoengine.queryset import DoesNotExist

from .forms import *

class RegisterView(FormView):
    template_name = 'registration/register.html'
    form_class = UserCreationForm
    success_url = reverse_lazy('registered')

    def form_valid(self, form):
        form.save()
        return FormView.form_valid(self, form)

register = RegisterView.as_view()


class RegisteredView(TemplateView):
    template_name = 'registration/registered.html'

registered = RegisteredView.as_view()

def login(request):
    c = {}
    c.update(csrf(request))
    return render_to_response('registration/auth.html', c)

def auth_view(request):
    username = request.POST['username']
    password = request.POST['password']
    user = authenticate(username=username, password=password)
    if user is not None:
        if user.is_active:
             login(request, user)
        else:
          return HttpResponseRedirect('/inactive')
     else:
          return HttpResponseRedirect('/invalid')

def loggedin(request):
    return render_to_response('registration/hello.html', 
                          {'full_name': request.user.username})

def invalid_login(request):
    return render_to_response('registration/hello.html')

Auth_view() is what handles the logging in.

Basically no matter what I do it always hits "except Exception:" with the unknown error flag. I feel like it's not even connecting with the MYSQL db and "authenticating"

EDIT: Updated Views.py/auth_view()

UserCreation form (forms.py)

   class UserCreationForm(forms.Form):
        error_messages = {
            'duplicate_username': _("A user with that username already exists."),
            'password_mismatch': _("The two password fields didn't match."),
        }
        username = forms.RegexField(label=_("Username"), max_length=30,
            regex=r'^[\w.@+-]+$',
            help_text=_("Required. 30 characters or fewer. Letters, digits and "
                      "@/./+/-/_ only."),
        error_messages={
              'invalid': _("This value may contain only letters, numbers and "
                          "@/./+/-/_ characters.")})
    email = forms.EmailField(label=_("Email"), max_length=254,
        help_text=_("Required valid email. 254 characters or fewer."),
        error_messages={
            'invalid': _("This value may contain only valid email address.")})
    password1 = forms.CharField(label=_("Password"),
        widget=forms.PasswordInput)
    password2 = forms.CharField(label=_("Password confirmation"),
        widget=forms.PasswordInput,
        help_text=_("Enter the same password as above, for verification."))

    def clean_username(self):
        username = self.cleaned_data["username"]
        try:
             User._default_manager.get(username=username)
         except User.DoesNotExist:
             return username
        raise forms.ValidationError(
            self.error_messages['duplicate_username'],
           code='duplicate_username',
        )

    def clean_password2(self):
        password1 = self.cleaned_data.get("password1")
        password2 = self.cleaned_data.get("password2")
        if password1 and password2 and password1 != password2:
            raise forms.ValidationError(
                self.error_messages['password_mismatch'],
                code='password_mismatch',
            )
        return password2

    def save(self):
        user = User._default_manager.create_user(
             username=self.cleaned_data['username'],
             email=self.cleaned_data['email'],
             password=self.cleaned_data["password1"])
        return user

EDIT 2:

score 0 · Answer 1 · answered Jul 16 '14 at 14:59

0

Well I think you have to use the authentication from django:

user = authenticate(username=username, password=password)

See this page for more information on how to use django authentication:

https://docs.djangoproject.com/en/dev/topics/auth/default/#auth-web-requests

And btw if you can register users it means you django app is well connected to the database, the problem must be somewhere else.

answered Jul 16 '14 at 14:59

Freelancer

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I did that as well, I updated the code with the changes including that line you mentioned, still doesnt authenticate. – spvceman Jul 16 '14 at 15:06
@spvceman are you sure users are well registered in database ? Can you provide the UserCreationForm class ? – Freelancer Jul 16 '14 at 15:09

score 0 · Answer 2 · answered Jul 16 '14 at 16:02

0

I think problem is here:

def form_valid(self, form):
        form.save()
        return Super(RegisterView, self).form_valid(form) #instead of FormView.form_valid(self, form)

answered Jul 16 '14 at 16:02

ruddra

50,746
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Registering accounts are fine. t gets added to the db under "auth_users" table. Just for somereason when logging in its not able to authenticate. hence ` user = authenticate(username=username, password=password)` – spvceman Jul 16 '14 at 16:34
I see, what does the exception say when you try to authenticate? – ruddra Jul 16 '14 at 17:06
'AnonymousUser' object has no attribute 'backend' – spvceman Jul 16 '14 at 17:20
That is weird, this problem occurs if you don't use authenticate before using login. reference: http://stackoverflow.com/questions/8321319/anonymoususer-object-has-no-attribute-backend , clearly its not an issue here – ruddra Jul 16 '14 at 17:25
Yeah, my apologies, I was basically trying to debug myself doing "return HttpResponse()" annd see the error I get if i put "login(request, user)", but then as you said that will give that error. so instead i put authenticate() in there, and its returning as "None" basically its unable to match usernames and passwords with registered ones in the db for some reason. – spvceman Jul 16 '14 at 17:29
check your request.POST['username']/['password']. and I think you should a form to provide login data. :) – ruddra Jul 16 '14 at 17:36
I got to work, thanks for all the help, I added "django.contrib.auth.backends.ModelBackend'," to my settings. Pretty stupid mistake by me. But while we are at it, may I ask how do you make it so you can't access pages without logging in first. – spvceman Jul 16 '14 at 17:46

score 0 · Answer 3 · answered Jul 16 '14 at 17:35

0

So I got it to work :P

In my settings.py files I had to add

django.contrib.auth.backends.ModelBackend',

I am literally an idiot.

answered Jul 16 '14 at 17:35

spvceman

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Accounts not authenticating during logging in in Django

3 Answers3