Use a separate app for registration

apps/registration/views.py

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+# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from django.conf import settings
+from django.contrib.auth.models import User
+from django.core.exceptions import ValidationError
+from django.shortcuts import resolve_url
+from django.urls import reverse_lazy
+from django.utils.decorators import method_decorator
+from django.utils.http import urlsafe_base64_decode
+from django.utils.translation import gettext_lazy as _
+from django.views.decorators.csrf import csrf_protect
+from django.views.generic import CreateView, TemplateView
+from member.forms import ProfileForm
+from member.tokens import account_activation_token
+
+from .forms import SignUpForm
+
+
+class UserCreateView(CreateView):
+    """
+    Une vue pour inscrire un utilisateur et lui créer un profil
+    """
+
+    form_class = SignUpForm
+    success_url = reverse_lazy('member:login')
+    template_name = 'member/signup.html'
+    second_form = ProfileForm
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["profile_form"] = self.second_form()
+
+        return context
+
+    def form_valid(self, form):
+        """
+        If the form is valid, then the user is created with is_active set to False
+        so that the user cannot log in until the email has been validated.
+        """
+        profile_form = ProfileForm(self.request.POST)
+        if not profile_form.is_valid():
+            return self.form_invalid(form)
+
+        user = form.save(commit=False)
+        user.is_active = False
+        user.profile = profile_form.save(commit=False)
+        user.save()
+        user.profile.save()
+
+        user.profile.send_email_validation_link()
+
+        return super().form_valid(form)
+
+
+class UserActivateView(TemplateView):
+    title = _("Account Activation")
+    template_name = 'registration/account_activation_complete.html'
+
+    @method_decorator(csrf_protect)
+    def dispatch(self, *args, **kwargs):
+        """
+        The dispatch method looks at the request to determine whether it is a GET, POST, etc,
+        and relays the request to a matching method if one is defined, or raises HttpResponseNotAllowed
+        if not. We chose to check the token in the dispatch method to mimic PasswordReset from
+        django.contrib.auth
+        """
+        assert 'uidb64' in kwargs and 'token' in kwargs
+
+        self.validlink = False
+        user = self.get_user(kwargs['uidb64'])
+        token = kwargs['token']
+
+        if user is not None and account_activation_token.check_token(user, token):
+            self.validlink = True
+            user.is_active = True
+            user.profile.email_confirmed = True
+            user.save()
+            return super().dispatch(*args, **kwargs)
+        else:
+            # Display the "Account Activation unsuccessful" page.
+            return self.render_to_response(self.get_context_data())
+
+    def get_user(self, uidb64):
+        print(uidb64)
+        try:
+            # urlsafe_base64_decode() decodes to bytestring
+            uid = urlsafe_base64_decode(uidb64).decode()
+            user = User.objects.get(pk=uid)
+        except (TypeError, ValueError, OverflowError, User.DoesNotExist, ValidationError):
+            user = None
+        return user
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['login_url'] = resolve_url(settings.LOGIN_URL)
+        if self.validlink:
+            context['validlink'] = True
+        else:
+            context.update({
+                'title': _('Account Activation unsuccessful'),
+                'validlink': False,
+            })
+        return context
+
+
+class UserActivationEmailSentView(TemplateView):
+    template_name = 'registration/account_activation_email_sent.html'
+    title = _('Account activation email sent')
+