Validate emails

apps/member/migrations/0003_tfjmuser_email_confirmed.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1 on 2020-09-19 20:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('member', '0002_auto_20200919_2015'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='tfjmuser',
+            name='email_confirmed',
+            field=models.BooleanField(default=False, verbose_name='email confirmed'),
+        ),
+    ]

apps/member/models.py

@@ -2,12 +2,17 @@ import os
 from datetime import date
 
 from django.contrib.auth.models import AbstractUser
+from django.contrib.sites.models import Site
 from django.db import models
+from django.template import loader
+from django.utils.encoding import force_bytes
+from django.utils.http import urlsafe_base64_encode
 from django.utils.translation import gettext_lazy as _
 from polymorphic.models import PolymorphicModel
-
 from tournament.models import Team, Tournament
 
+from .tokens import email_validation_token
+
 
 class TFJMUser(AbstractUser):
     """
@@ -144,6 +149,11 @@ class TFJMUser(AbstractUser):
         verbose_name=_("year"),
     )
 
+    email_confirmed = models.BooleanField(
+        verbose_name=_("email confirmed"),
+        default=False,
+    )
+
     @property
     def participates(self):
         """
@@ -179,6 +189,27 @@ class TFJMUser(AbstractUser):
     def __str__(self):
         return self.first_name + " " + self.last_name
 
+    def send_email_validation_link(self):
+        subject = "[TFJM²] " + str(_("Activate your Note Kfet account"))
+        token = email_validation_token.make_token(self)
+        uid = urlsafe_base64_encode(force_bytes(self.pk))
+        site = Site.objects.first()
+        message = loader.render_to_string('registration/mails/email_validation_email.txt',
+                                          {
+                                              'user': self,
+                                              'domain': site.domain,
+                                              'token': token,
+                                              'uid': uid,
+                                          })
+        html = loader.render_to_string('registration/mails/email_validation_email.html',
+                                       {
+                                           'user': self,
+                                           'domain': site.domain,
+                                           'token': token,
+                                           'uid': uid,
+                                       })
+        self.email_user(subject, message, html_message=html)
+
 
 class Document(PolymorphicModel):
     """

apps/member/tokens.py

@@ -0,0 +1,26 @@
+from django.contrib.auth.tokens import PasswordResetTokenGenerator
+
+
+class AccountActivationTokenGenerator(PasswordResetTokenGenerator):
+    """
+    Create a unique token generator to confirm email addresses.
+    """
+    def _make_hash_value(self, user, timestamp):
+        """
+        Hash the user's primary key and some user state that's sure to change
+        after an account validation to produce a token that invalidated when
+        it's used:
+        1. The user.profile.email_confirmed field will change upon an account
+        validation.
+        2. The last_login field will usually be updated very shortly after
+           an account validation.
+        Failing those things, settings.PASSWORD_RESET_TIMEOUT_DAYS eventually
+        invalidates the token.
+        """
+        # Truncate microseconds so that tokens are consistent even if the
+        # database doesn't support microseconds.
+        login_timestamp = '' if user.last_login is None else user.last_login.replace(microsecond=0, tzinfo=None)
+        return str(user.pk) + str(user.email) + str(user.email_confirmed) + str(login_timestamp) + str(timestamp)
+
+
+email_validation_token = AccountActivationTokenGenerator()

apps/member/urls.py

@@ -1,12 +1,17 @@
 from django.urls import path
 
 from .views import CreateUserView, MyAccountView, UserDetailView, AddTeamView, JoinTeamView, MyTeamView, \
-    ProfileListView, OrphanedProfileListView, OrganizersListView, ResetAdminView
+    ProfileListView, OrphanedProfileListView, OrganizersListView, ResetAdminView, UserValidationEmailSentView, \
+    UserResendValidationEmailView, UserValidateView
 
 app_name = "member"
 
 urlpatterns = [
     path('signup/', CreateUserView.as_view(), name="signup"),
+    path('validate_email/sent/', UserValidationEmailSentView.as_view(), name='email_validation_sent'),
+    path('validate_email/resend/<int:pk>/', UserResendValidationEmailView.as_view(),
+         name='email_validation_resend'),
+    path('validate_email/<uidb64>/<token>/', UserValidateView.as_view(), name='email_validation'),
     path("my-account/", MyAccountView.as_view(), name="my_account"),
     path("information/<int:pk>/", UserDetailView.as_view(), name="information"),
     path("add-team/", AddTeamView.as_view(), name="add_team"),

apps/member/views.py

@@ -1,18 +1,20 @@
 import random
 
+from django.conf import settings
 from django.contrib.auth.mixins import LoginRequiredMixin, AccessMixin
 from django.contrib.auth.models import AnonymousUser
-from django.core.exceptions import PermissionDenied
+from django.core.exceptions import PermissionDenied, ValidationError
 from django.db.models import Q
 from django.http import FileResponse, Http404
-from django.shortcuts import redirect
+from django.shortcuts import redirect, resolve_url
 from django.urls import reverse_lazy
 from django.utils import timezone
 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 import View
 from django.views.decorators.debug import sensitive_post_parameters
-from django.views.generic import CreateView, UpdateView, DetailView, FormView
+from django.views.generic import CreateView, UpdateView, DetailView, FormView, TemplateView
 from django_tables2 import SingleTableView
 from tournament.forms import TeamForm, JoinTeam
 from tournament.models import Team, Tournament, Pool
@@ -21,6 +23,7 @@ from tournament.views import AdminMixin, TeamMixin, OrgaMixin
 from .forms import SignUpForm, TFJMUserForm, AdminUserForm, CoachUserForm
 from .models import TFJMUser, Document, Solution, MotivationLetter, Synthesis
 from .tables import UserTable
+from .tokens import email_validation_token
 
 
 class CreateUserView(CreateView):
@@ -36,8 +39,87 @@ class CreateUserView(CreateView):
     def dispatch(self, request, *args, **kwargs):
         return super().dispatch(request, *args, **kwargs)
 
+    def form_valid(self, form):
+        form.instance.send_email_validation_link()
+        return super().form_valid(form)
+
     def get_success_url(self):
-        return reverse_lazy('index')
+        return reverse_lazy('member:email_validation_sent')
+
+
+class UserValidateView(TemplateView):
+    """
+    A view to validate the email address.
+    """
+    title = _("Email validation")
+    template_name = 'registration/email_validation_complete.html'
+    extra_context = {"title": _("Validate email")}
+
+    def get(self, *args, **kwargs):
+        """
+        With a given token and user id (in params), validate the email address.
+        """
+        assert 'uidb64' in kwargs and 'token' in kwargs
+
+        self.validlink = False
+        user = self.get_user(kwargs['uidb64'])
+        token = kwargs['token']
+
+        # Validate the token
+        if user is not None and email_validation_token.check_token(user, token):
+            self.validlink = True
+            user.email_confirmed = True
+            user.save()
+        return self.render_to_response(self.get_context_data(), status=200 if self.validlink else 400)
+
+    def get_user(self, uidb64):
+        """
+        Get user from the base64-encoded string.
+        """
+        try:
+            # urlsafe_base64_decode() decodes to bytestring
+            uid = urlsafe_base64_decode(uidb64).decode()
+            user = TFJMUser.objects.get(pk=uid)
+        except (TypeError, ValueError, OverflowError, TFJMUser.DoesNotExist, ValidationError):
+            user = None
+        return user
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['user_object'] = self.get_user(self.kwargs["uidb64"])
+        context['login_url'] = resolve_url(settings.LOGIN_URL)
+        if self.validlink:
+            context['validlink'] = True
+        else:
+            context.update({
+                'title': _('Email validation unsuccessful'),
+                'validlink': False,
+            })
+        return context
+
+
+class UserValidationEmailSentView(TemplateView):
+    """
+    Display the information that the validation link has been sent.
+    """
+    template_name = 'registration/email_validation_email_sent.html'
+    extra_context = {"title": _('Email validation email sent')}
+
+
+class UserResendValidationEmailView(LoginRequiredMixin, DetailView):
+    """
+    Rensend the email validation link.
+    """
+    model = TFJMUser
+    extra_context = {"title": _("Resend email validation link")}
+
+    def get(self, request, *args, **kwargs):
+        user = self.get_object()
+
+        user.profile.send_email_validation_link()
+
+        url = 'member:user_detail' if user.profile.registration_valid else 'member:future_user_detail'
+        return redirect(url, user.id)
 
 
 class MyAccountView(LoginRequiredMixin, UpdateView):

locale/fr/LC_MESSAGES/django.po

@@ -917,11 +917,6 @@ msgstr "Votre adresse e-mail a bien été validée."
 msgid "You can now <a href=\"%(login_url)s\">log in</a>."
 msgstr "Vous pouvez désormais <a href=\"%(login_url)s\">vous connecter</a>"
 
-#: templates/registration/email_validation_complete.html:10
-msgid ""
-"You must pay now your membership in the Kfet to complete your registration."
-msgstr ""
-
 #: templates/registration/email_validation_complete.html:13
 msgid ""
 "The link was invalid. The token may have expired. Please send us an email to "
@@ -956,32 +951,16 @@ msgstr "Mot de passe oublié ?"
 msgid "Hi"
 msgstr "Bonjour"
 
-#: templates/registration/mails/email_validation_email.html:5
-msgid ""
-"You recently registered on the Note Kfet. Please click on the link below to "
-"confirm your registration."
-msgstr ""
-
 #: templates/registration/mails/email_validation_email.html:9
 msgid ""
 "This link is only valid for a couple of days, after that you will need to "
 "contact us to validate your email."
 msgstr ""
 
-#: templates/registration/mails/email_validation_email.html:11
-msgid ""
-"After that, you'll have to wait that someone validates your account before "
-"you can log in. You will need to pay your membership in the Kfet."
-msgstr ""
-
 #: templates/registration/mails/email_validation_email.html:13
 msgid "Thanks"
 msgstr "Merci"
 
-#: templates/registration/mails/email_validation_email.html:15
-msgid "The Note Kfet team."
-msgstr ""
-
 #: templates/registration/password_change_done.html:8
 msgid "Your password was changed."
 msgstr "Votre mot de passe a été changé"

templates/registration/email_validation_complete.html

@@ -1,15 +1,27 @@
 {% extends "base.html" %}
+{% comment %}
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
 {% load i18n %}
 
 {% block content %}
+<div class="card bg-light">
+    <h3 class="card-header text-center">
+        {{ title }}
+    </h3>
+    <div class="card-body">
         {% if validlink %}
+        <p>
             {% trans "Your email have successfully been validated." %}
-        {% if user_object.profile.registration_valid %}
+        </p>
+        <p>
             {% blocktrans %}You can now <a href="{{ login_url }}">log in</a>.{% endblocktrans %}
+        </p>
         {% else %}
-            {% trans "You must pay now your membership in the Kfet to complete your registration." %}
-        {% endif %}
-    {% else %}
+        <p>
             {% trans "The link was invalid. The token may have expired. Please send us an email to activate your account." %}
+        </p>
         {% endif %}
+     </div>
+</div>
 {% endblock %}

templates/registration/email_validation_email_sent.html

@@ -1,7 +1,18 @@
 {% extends "base.html" %}
+{% comment %}
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
+{% load i18n %}
 
 {% block content %}
-<h2>Account Activation</h2>
-
-An email has been sent. Please click on the link to activate your account.
+<div class="card bg-light">
+    <h3 class="card-header text-center">
+        {% trans "Account activation" %}
+    </h3>
+    <div class="card-body">
+        <p>
+            {% trans "An email has been sent. Please click on the link to activate your account." %}
+        </p>
+    </div>
+</div>
 {% endblock %}

templates/registration/mails/email_validation_email.html

@@ -1,15 +1,36 @@
 {% load i18n %}
 
+<!DOCTYPE html>
+<html lang="fr">
+<head>
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<p>
     {% trans "Hi" %} {{ user.username }},
+</p>
 
-{% trans "You recently registered on the Note Kfet. Please click on the link below to confirm your registration." %}
+<p>
+    {% trans "You recently registered on the TFJM² platform. Please click on the link below to confirm your registration." %}
+</p>
 
-https://{{ domain }}{% url 'registration:email_validation' uidb64=uid token=token %}
+<p>
+    <a href="https://{{ domain }}{% url 'member:email_validation' uidb64=uid token=token %}">
+        https://{{ domain }}{% url 'member:email_validation' uidb64=uid token=token %}
+    </a>
+</p>
 
+<p>
     {% trans "This link is only valid for a couple of days, after that you will need to contact us to validate your email." %}
+</p>
 
-{% trans "After that, you'll have to wait that someone validates your account before you can log in. You will need to pay your membership in the Kfet." %}
-
+<p>
     {% trans "Thanks" %},
+</p>
 
-{% trans "The Note Kfet team." %}
+--
+<p>
+    {% trans "The CNO." %}<br>
+</p>

templates/registration/mails/email_validation_email.txt

@@ -0,0 +1,13 @@
+{% load i18n %}
+
+{% trans "Hi" %} {{ user.username }},
+
+{% trans "You recently registered on the TFJM² platform. Please click on the link below to confirm your registration." %}
+
+https://{{ domain }}{% url 'member:email_validation' uidb64=uid token=token %}
+
+{% trans "This link is only valid for a couple of days, after that you will need to contact us to validate your email." %}
+
+{% trans "Thanks" %},
+
+{% trans "The CNO." %}