Merge pull request #773 from ae-utbm/taiste

SAS, Eboutic, Antispam, psycopg
2024-11-22 06:03:20 +00:00 · 2024-08-09 13:35:26 +02:00 · 2024-08-09 13:35:26 +02:00 · f5cee10761
commit f5cee10761
parent eb04e26b22 d1cbb765c0
69 changed files with 1984 additions and 1637 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,4 +1,4 @@
-db.sqlite3
+*.sqlite3
 *.log
 *.pyc
 *.mo
--- a/antispam/init.py
+++ b/antispam/init.py
--- a/antispam/admin.py
+++ b/antispam/admin.py
@ -0,0 +1,10 @@
+from django.contrib import admin
+
+from antispam.models import ToxicDomain
+
+
+@admin.register(ToxicDomain)
+class ToxicDomainAdmin(admin.ModelAdmin):
+    list_display = ("domain", "is_externally_managed", "created")
+    search_fields = ("domain", "is_externally_managed", "created")
+    list_filter = ("is_externally_managed",)
--- a/antispam/apps.py
+++ b/antispam/apps.py
@ -0,0 +1,7 @@
+from django.apps import AppConfig
+
+
+class AntispamConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    verbose_name = "antispam"
+    name = "antispam"
--- a/antispam/forms.py
+++ b/antispam/forms.py
@ -0,0 +1,18 @@
+import re
+
+from django import forms
+from django.core.validators import EmailValidator
+from django.utils.translation import gettext_lazy as _
+
+from antispam.models import ToxicDomain
+
+
+class AntiSpamEmailField(forms.EmailField):
+    """An email field that email addresses with a known toxic domain."""
+
+    def run_validators(self, value: str):
+        super().run_validators(value)
+        # Domain part should exist since email validation is guaranteed to run first
+        domain = re.search(EmailValidator.domain_regex, value)
+        if ToxicDomain.objects.filter(domain=domain[0]).exists():
+            raise forms.ValidationError(_("Email domain is not allowed."))
--- a/antispam/management/commands/init.py
+++ b/antispam/management/commands/init.py
--- a/antispam/management/commands/update_spam_database.py
+++ b/antispam/management/commands/update_spam_database.py
@ -0,0 +1,69 @@
+import requests
+from django.conf import settings
+from django.core.management import BaseCommand
+from django.db.models import Max
+from django.utils import timezone
+
+from antispam.models import ToxicDomain
+
+
+class Command(BaseCommand):
+    """Update blocked ips/mails database"""
+
+    help = "Update blocked ips/mails database"
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--force", action="store_true", help="Force re-creation even if up to date"
+        )
+
+    def _should_update(self, *, force: bool = False) -> bool:
+        if force:
+            return True
+        oldest = ToxicDomain.objects.filter(is_externally_managed=True).aggregate(
+            res=Max("created")
+        )["res"]
+        return not (oldest and timezone.now() < (oldest + timezone.timedelta(days=1)))
+
+    def _download_domains(self, providers: list[str]) -> set[str]:
+        domains = set()
+        for provider in providers:
+            res = requests.get(provider)
+            if not res.ok:
+                self.stderr.write(
+                    f"Source {provider} responded with code {res.status_code}"
+                )
+                continue
+            domains |= set(res.content.decode().splitlines())
+        return domains
+
+    def _update_domains(self, domains: set[str]):
+        # Cleanup database
+        ToxicDomain.objects.filter(is_externally_managed=True).delete()
+
+        # Create database
+        ToxicDomain.objects.bulk_create(
+            [
+                ToxicDomain(domain=domain, is_externally_managed=True)
+                for domain in domains
+            ],
+            ignore_conflicts=True,
+        )
+        self.stdout.write("Domain database updated")
+
+    def handle(self, *args, **options):
+        if not self._should_update(force=options["force"]):
+            self.stdout.write("Domain database is up to date")
+            return
+        self.stdout.write("Updating domain database")
+
+        domains = self._download_domains(settings.TOXIC_DOMAINS_PROVIDERS)
+
+        if not domains:
+            self.stderr.write(
+                "No domains could be fetched from settings.TOXIC_DOMAINS_PROVIDERS. "
+                "Please, have a look at your settings."
+            )
+            return
+
+        self._update_domains(domains)
--- a/antispam/migrations/0001_initial.py
+++ b/antispam/migrations/0001_initial.py
@ -0,0 +1,35 @@
+# Generated by Django 4.2.14 on 2024-08-03 23:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = []
+
+    operations = [
+        migrations.CreateModel(
+            name="ToxicDomain",
+            fields=[
+                (
+                    "domain",
+                    models.URLField(
+                        max_length=253,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="domain",
+                    ),
+                ),
+                ("created", models.DateTimeField(auto_now_add=True)),
+                (
+                    "is_externally_managed",
+                    models.BooleanField(
+                        default=False,
+                        help_text="True if kept up-to-date using external toxic domain providers, else False",
+                        verbose_name="is externally managed",
+                    ),
+                ),
+            ],
+        ),
+    ]
--- a/antispam/migrations/init.py
+++ b/antispam/migrations/init.py
--- a/antispam/models.py
+++ b/antispam/models.py
@ -0,0 +1,19 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+
+class ToxicDomain(models.Model):
+    """Domain marked as spam in public databases"""
+
+    domain = models.URLField(_("domain"), max_length=253, primary_key=True)
+    created = models.DateTimeField(auto_now_add=True)
+    is_externally_managed = models.BooleanField(
+        _("is externally managed"),
+        default=False,
+        help_text=_(
+            "True if kept up-to-date using external toxic domain providers, else False"
+        ),
+    )
+
+    def __str__(self) -> str:
+        return self.domain
--- a/core/apps.py
+++ b/core/apps.py
@ -20,8 +20,7 @@
 # Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 #
-
-import sys
+import logging

 from django.apps import AppConfig
 from django.core.cache import cache
@ -41,7 +40,7 @@ class SithConfig(AppConfig):
        def clear_cached_memberships(**kwargs):
            Forum._club_memberships = {}

-        print("Connecting signals!", file=sys.stderr)
+        logging.getLogger("django").info("Connecting signals!")
        request_started.connect(
            clear_cached_memberships,
            weak=False,
--- a/core/lookups.py
+++ b/core/lookups.py
@ -21,19 +21,12 @@ from club.models import Club
 from core.models import Group, SithFile, User
 from core.views.site import search_user
 from counter.models import Counter, Customer, Product
-
-
-def check_token(request):
-    return (
-        "counter_token" in request.session.keys()
-        and request.session["counter_token"]
-        and Counter.objects.filter(token=request.session["counter_token"]).exists()
-    )
+from counter.utils import is_logged_in_counter


 class RightManagedLookupChannel(LookupChannel):
    def check_auth(self, request):
-        if not request.user.was_subscribed and not check_token(request):
+        if not request.user.was_subscribed and not is_logged_in_counter(request):
            raise PermissionDenied


--- a/core/management/commands/install_xapian.py
+++ b/core/management/commands/install_xapian.py
@ -48,20 +48,24 @@ class Command(BaseCommand):

    def handle(self, *args, force: bool, **options):
        if not os.environ.get("VIRTUAL_ENV", None):
-            print("No virtual environment detected, this command can't be used")
+            self.stdout.write(
+                "No virtual environment detected, this command can't be used"
+            )
            return

        desired = self._desired_version()
        if desired == self._current_version():
            if not force:
-                print(
+                self.stdout.write(
                    f"Version {desired} is already installed, use --force to re-install"
                )
                return
-            print(f"Version {desired} is already installed, re-installing")
-        print(f"Installing xapian version {desired} at {os.environ['VIRTUAL_ENV']}")
+            self.stdout.write(f"Version {desired} is already installed, re-installing")
+        self.stdout.write(
+            f"Installing xapian version {desired} at {os.environ['VIRTUAL_ENV']}"
+        )
        subprocess.run(
            [str(Path(__file__).parent / "install_xapian.sh"), desired],
            env=dict(os.environ),
        ).check_returncode()
-        print("Installation success")
+        self.stdout.write("Installation success")
--- a/core/management/commands/markdown.py
+++ b/core/management/commands/markdown.py
@ -35,4 +35,4 @@ class Command(BaseCommand):
        root_path = settings.BASE_DIR
        with open(root_path / "core/fixtures/SYNTAX.md", "r") as md:
            result = markdown(md.read())
-        print(result, end="")
+        self.stdout.write(result)
--- a/core/models.py
+++ b/core/models.py
@ -24,6 +24,7 @@
 from __future__ import annotations

 import importlib
+import logging
 import os
 import unicodedata
 from datetime import date, timedelta
@ -981,7 +982,7 @@ class SithFile(models.Model):
            return True
        if self.is_in_sas and user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID):
            return True
-        return user.id == self.owner.id
+        return user.id == self.owner_id

    def can_be_viewed_by(self, user):
        if hasattr(self, "profile_of"):
@ -1085,19 +1086,15 @@ class SithFile(models.Model):
            # file storage
            parent_path = "." + self.parent.get_full_path()
            parent_full_path = settings.MEDIA_ROOT + parent_path
-            print("Parent full path: %s" % parent_full_path)
            os.makedirs(parent_full_path, exist_ok=True)
            old_path = self.file.name  # Should be relative: "./users/skia/bleh.jpg"
            new_path = "." + self.get_full_path()
-            print("Old path: %s " % old_path)
-            print("New path: %s " % new_path)
            try:
                # Make this atomic, so that a FS problem rolls back the DB change
                with transaction.atomic():
                    # Set the new filesystem path
                    self.file.name = new_path
                    self.save()
-                    print("New file path: %s " % self.file.path)
                    # Really move at the FS level
                    if os.path.exists(parent_full_path):
                        os.rename(
@ -1108,25 +1105,22 @@ class SithFile(models.Model):
                        # problem, and that can be solved with a simple shell
                        # command: `find . -type d -empty -delete`
            except Exception as e:
-                print("This file likely had a problem. Here is the exception:")
-                print(repr(e))
-            print("-" * 80)
+                logging.error(e)

    def _check_path_consistence(self):
        file_path = str(self.file)
        file_full_path = settings.MEDIA_ROOT + file_path
        db_path = ".%s" % self.get_full_path()
        if not os.path.exists(file_full_path):
-            print("%s: WARNING: real file does not exists!" % self.id)
-            print("file path: %s" % file_path, end="")
-            print("  db path: %s" % db_path)
+            print("%s: WARNING: real file does not exists!" % self.id)  # noqa T201
+            print("file path: %s" % file_path, end="")  # noqa T201
+            print("  db path: %s" % db_path)  # noqa T201
            return False
        if file_path != db_path:
-            print("%s: " % self.id, end="")
-            print("file path: %s" % file_path, end="")
-            print("  db path: %s" % db_path)
+            print("%s: " % self.id, end="")  # noqa T201
+            print("file path: %s" % file_path, end="")  # noqa T201
+            print("  db path: %s" % db_path)  # noqa T201
            return False
-        print("%s OK (%s)" % (self.id, file_path))
        return True

    def _check_fs(self):
@ -1137,11 +1131,9 @@ class SithFile(models.Model):
        else:
            self._check_path_consistence()

-    def __getattribute__(self, attr):
-        if attr == "is_file":
-            return not self.is_folder
-        else:
-            return super().__getattribute__(attr)
+    @property
+    def is_file(self):
+        return not self.is_folder

    @cached_property
    def as_picture(self):
--- a/core/static/core/js/alpinejs.min.js
+++ b/core/static/core/js/alpinejs.min.js
--- a/core/static/core/js/script.js
+++ b/core/static/core/js/script.js
@ -65,3 +65,21 @@ function display_notif() {
 function getCSRFToken() {
    return $("[name=csrfmiddlewaretoken]").val();
 }
+
+
+const initialUrlParams = new URLSearchParams(window.location.search);
+
+function update_query_string(key, value) {
+    const url = new URL(window.location.href);
+    if (!value) {
+        // If the value is null, undefined or empty => delete it
+        url.searchParams.delete(key)
+    } else if (Array.isArray(value)) {
+
+        url.searchParams.delete(key)
+        value.forEach((v) => url.searchParams.append(key, v))
+    } else {
+        url.searchParams.set(key, value);
+    }
+    history.pushState(null, document.title, url.toString());
+}
--- a/core/static/core/pagination.scss
+++ b/core/static/core/pagination.scss
@ -3,6 +3,7 @@
 .pagination {
  text-align: center;
  gap: 10px;
+  margin: 30px;

  button {
    background-color: $secondary-neutral-light-color;
--- a/core/static/core/style.scss
+++ b/core/static/core/style.scss
@ -93,6 +93,32 @@ a:not(.button) {
  }
 }

+[aria-busy] {
+  --loading-size: 50px;
+  --loading-stroke: 5px;
+  --loading-duration: 1s;
+  position: relative;
+}
+
+[aria-busy]:after {
+  content: '';
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  width: var(--loading-size);
+  height: var(--loading-size);
+  margin-top: calc(var(--loading-size) / 2 * -1);
+  margin-left: calc(var(--loading-size) / 2 * -1);
+  border: var(--loading-stroke) solid rgba(0, 0, 0, .15);
+  border-radius: 50%;
+  border-top-color: rgba(0, 0, 0, 0.5);
+  animation: rotate calc(var(--loading-duration)) linear infinite;
+}
+
+@keyframes rotate {
+  100% { transform: rotate(360deg); }
+}
+
 .ib {
  display: inline-block;
  padding: 1px;
--- a/core/static/sas/album.scss
+++ b/core/static/sas/album.scss
@ -102,20 +102,10 @@ main {
  border-radius: 10px;
 }

-.paginator {
-  display: flex;
-  justify-content: center;
-  gap: 10px;
-  width: -moz-fit-content;
-  width: fit-content;
-  background-color: rgba(0,0,0,.1);
-  border-radius: 10px;
-  padding: 10px;
-  margin: 10px 0 10px auto;
-}
-
 .photos,
 .albums {
+  margin: 20px;
+  min-height: 50px;  // To contain the aria-busy loading wheel, even if empty
  box-sizing: border-box;
  display: flex;
  flex-direction: row;
@ -161,17 +151,13 @@ main {
    > .album {
      box-sizing: border-box;
      background-color: #333333;
-      background-size: cover;
+      background-size: contain;
      background-repeat: no-repeat;
      background-position: center center;

      width: calc(16 / 9 * 128px);
      height: 128px;

-      &.vertical {
-        background-size: contain;
-      }
-
      margin: 0;
      padding: 0;
      box-shadow: none;
--- a/core/templates/core/base.jinja
+++ b/core/templates/core/base.jinja
@ -27,6 +27,9 @@

      {% block additional_css %}{% endblock %}
      {% block additional_js %}{% endblock %}
+
+      {# Alpine JS must be loaded after scripts that use it. #}
+      <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
    {% endblock %}
  </head>

--- a/core/templates/core/user_detail.jinja
+++ b/core/templates/core/user_detail.jinja
@ -9,10 +9,6 @@
  {% trans user_name=profile.get_display_name() %}{{ user_name }}'s profile{% endtrans %}
 {% endblock %}

-{% block additional_js %}
-  <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
-{% endblock %}
-
 {% block content %}
  <div class="user_profile_page" x-data>
    <div class="user_profile">
--- a/core/templates/core/user_pictures.jinja
+++ b/core/templates/core/user_pictures.jinja
@ -10,7 +10,6 @@
    window.showSaveFilePicker = showSaveFilePicker; /* Export function to normal javascript */
  </script>
  <script defer type="text/javascript" src="{{ static('core/js/zipjs/zip-fs-full.min.js') }}"></script>
-  <script defer src="{{ static("core/js/alpinejs.min.js") }}"></script>
 {% endblock %}

 {% block title %}
@ -24,7 +23,7 @@
        <button
          :disabled="in_progress"
          class="btn btn-blue"
-          @click="download('{{ url("api:pictures") }}?users_identified={{ object.id }}')"
+          @click="download_zip()"
        >
          <i class="fa fa-download"></i>
          {% trans %}Download all my pictures{% endtrans %}
@ -87,13 +86,34 @@
        Alpine.data("picture_download", () => ({
          in_progress: false,

-          async download(url) {
+          /**
+           * @return {Promise<Picture[]>}
+           */
+          async get_pictures() {
+            {# The API forbids to get more than 199 items at once
+             from paginated routes.
+             In order to download all the user pictures, it may be needed
+             to performs multiple requests #}
+            const max_per_page = 1;
+            const url = "{{ url("api:pictures") }}"
+            + "?users_identified={{ object.id }}"
+            + `&page_size=${max_per_page}`;
+            let promises = [];
+            const nb_pages = Math.ceil({{ nb_pictures }} / max_per_page);
+            for (let i = 1; i <= nb_pages; i++) {
+              promises.push(
+                fetch(url + `&page=${i}`).then(res => res.json().then(json => json.results))
+              );
+            }
+            return (await Promise.all(promises)).flat()
+          },
+
+
+          async download_zip(){
            this.in_progress = true;
            const bar = this.$refs.progress;
            bar.value = 0;
-
-            /** @type Picture[] */
-            const pictures = await (await fetch(url)).json();
+            const pictures = await this.get_pictures();
            bar.max = pictures.length;

            const fileHandle = await window.showSaveFilePicker({
--- a/core/tests.py
+++ b/core/tests.py
@ -24,8 +24,10 @@ from django.core.mail import EmailMessage
 from django.test import Client, TestCase
 from django.urls import reverse
 from django.utils.timezone import now
+from model_bakery import baker
 from pytest_django.asserts import assertInHTML, assertRedirects

+from antispam.models import ToxicDomain
 from club.models import Membership
 from core.markdown import markdown
 from core.models import AnonymousUser, Group, Page, User
@ -48,6 +50,10 @@ class TestUserRegistration:
            "captcha_1": "PASSED",
        }

+    @pytest.fixture()
+    def scam_domains(self):
+        return [baker.make(ToxicDomain, domain="scammer.spam")]
+
    def test_register_user_form_ok(self, client, valid_payload):
        """Should register a user correctly."""
        assert not User.objects.filter(email=valid_payload["email"]).exists()
@ -64,14 +70,25 @@ class TestUserRegistration:
                {"password2": "not the same as password1"},
                "Les deux mots de passe ne correspondent pas.",
            ),
-            ({"email": "not-an-email"}, "Saisissez une adresse de courriel valide."),
+            (
+                {"email": "not-an-email"},
+                "Saisissez une adresse de courriel valide.",
+            ),
+            (
+                {"email": "not\\an@email.com"},
+                "Saisissez une adresse de courriel valide.",
+            ),
+            (
+                {"email": "legit@scammer.spam"},
+                "Le domaine de l'addresse e-mail n'est pas autorisé.",
+            ),
            ({"first_name": ""}, "Ce champ est obligatoire."),
            ({"last_name": ""}, "Ce champ est obligatoire."),
            ({"captcha_1": "WRONG_CAPTCHA"}, "CAPTCHA invalide"),
        ],
    )
    def test_register_user_form_fail(
-        self, client, valid_payload, payload_edit, expected_error
+        self, client, scam_domains, valid_payload, payload_edit, expected_error
    ):
        """Should not register a user correctly."""
        payload = valid_payload | payload_edit
--- a/core/utils.py
+++ b/core/utils.py
@ -96,10 +96,7 @@ def get_semester_code(d: Optional[date] = None) -> str:


 def scale_dimension(width, height, long_edge):
-    if width > height:
-        ratio = long_edge * 1.0 / width
-    else:
-        ratio = long_edge * 1.0 / height
+    ratio = long_edge / max(width, height)
    return int(width * ratio), int(height * ratio)


@ -107,8 +104,8 @@ def resize_image(im, edge, img_format):
    (w, h) = im.size
    (width, height) = scale_dimension(w, h, long_edge=edge)
    content = BytesIO()
-    # use the lanczos filter for antialiasing
-    im = im.resize((width, height), Resampling.LANCZOS)
+    # use the lanczos filter for antialiasing and discard the alpha channel
+    im = im.resize((width, height), Resampling.LANCZOS).convert("RGB")
    try:
        im.save(
            fp=content,
--- a/core/views/files.py
+++ b/core/views/files.py
@ -12,6 +12,7 @@
 # OR WITHIN THE LOCAL FILE "LICENSE"
 #
 #
+from urllib.parse import quote, urljoin

 # This file contains all the views that concern the page model
 from wsgiref.util import FileWrapper
@ -21,7 +22,7 @@ from django import forms
 from django.conf import settings
 from django.core.exceptions import PermissionDenied
 from django.forms.models import modelform_factory
-from django.http import Http404, HttpResponse
+from django.http import Http404, HttpRequest, HttpResponse
 from django.shortcuts import get_object_or_404, redirect
 from django.urls import reverse
 from django.utils.http import http_date
@ -37,33 +38,42 @@ from core.views import (
    CanViewMixin,
    can_view,
 )
-from counter.models import Counter
+from counter.utils import is_logged_in_counter


-def send_file(request, file_id, file_class=SithFile, file_attr="file"):
-    """Send a file through Django without loading the whole file into
-    memory at once. The FileWrapper will turn the file object into an
-    iterator for chunks of 8KB.
+def send_file(
+    request: HttpRequest,
+    file_id: int,
+    file_class: type[SithFile] = SithFile,
+    file_attr: str = "file",
+) -> HttpResponse:
+    """Send a protected file, if the user can see it.
+
+    In prod, the server won't handle the download itself,
+    but set the appropriate headers in the response to make the reverse-proxy
+    deal with it.
+    In debug mode, the server will directly send the file.
    """
    f = get_object_or_404(file_class, id=file_id)
-    if not (
-        can_view(f, request.user)
-        or (
-            "counter_token" in request.session.keys()
-            and request.session["counter_token"]
-            and Counter.objects.filter(  # check if not null for counters that have no token set
-                token=request.session["counter_token"]
-            ).exists()
-        )
-    ):
+    if not can_view(f, request.user) and not is_logged_in_counter(request):
        raise PermissionDenied
-    name = f.__getattribute__(file_attr).name
+    name = getattr(f, file_attr).name
    filepath = settings.MEDIA_ROOT / name

    # check if file exists on disk
    if not filepath.exists():
        raise Http404

+    if not settings.DEBUG:
+        # When receiving a response with the Accel-Redirect header,
+        # the reverse proxy will automatically handle the file sending.
+        # This is really hard to test (thus isn't tested)
+        # so please do not mess with this.
+        response = HttpResponse(status=200)
+        response["Content-Type"] = ""
+        response["X-Accel-Redirect"] = quote(urljoin(settings.MEDIA_URL, name))
+        return response
+
    with open(filepath, "rb") as filename:
        wrapper = FileWrapper(filename)
        response = HttpResponse(wrapper, content_type=f.mime_type)
--- a/core/views/forms.py
+++ b/core/views/forms.py
@ -16,7 +16,7 @@
 # details.
 #
 # You should have received a copy of the GNU General Public License along with
-# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
+# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 # Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 #
@ -45,6 +45,7 @@ from django.utils.translation import gettext_lazy as _
 from phonenumber_field.widgets import RegionalPhoneNumberWidget
 from PIL import Image

+from antispam.forms import AntiSpamEmailField
 from core.models import Gift, Page, SithFile, User
 from core.utils import resize_image

@ -194,6 +195,9 @@ class RegisteringForm(UserCreationForm):
    class Meta:
        model = User
        fields = ("first_name", "last_name", "email")
+        field_classes = {
+            "email": AntiSpamEmailField,
+        }


 class UserProfileForm(forms.ModelForm):
--- a/core/views/user.py
+++ b/core/views/user.py
@ -22,6 +22,7 @@
 #
 #
 import itertools
+import logging

 # This file contains all the views that concern the user model
 from datetime import date, timedelta
@ -318,6 +319,7 @@ class UserPicturesView(UserTabsMixin, CanViewMixin, DetailView):
            .order_by("-parent__date", "-date")
            .annotate(album=F("parent__name"))
        )
+        kwargs["nb_pictures"] = len(pictures)
        kwargs["albums"] = {
            album: list(picts)
            for album, picts in itertools.groupby(pictures, lambda i: i.album)
@ -801,7 +803,7 @@ class UserAccountView(UserAccountBase):
                product__eticket=None
            ).all()
        except Exception as e:
-            print(repr(e))
+            logging.error(e)
        return kwargs


--- a/counter/models.py
+++ b/counter/models.py
@ -310,11 +310,26 @@ class Product(models.Model):

        Returns:
            True if the user can buy this product else False
+
+        Warnings:
+            This performs a db query, thus you can quickly have
+            a N+1 queries problem if you call it in a loop.
+            Hopefully, you can avoid that if you prefetch the buying_groups :
+
+            ```python
+            user = User.objects.get(username="foobar")
+            products = [
+                p
+                for p in Product.objects.prefetch_related("buying_groups")
+                if p.can_be_sold_to(user)
+            ]
+            ```
        """
-        if not self.buying_groups.exists():
+        buying_groups = list(self.buying_groups.all())
+        if not buying_groups:
            return True
-        for group_id in self.buying_groups.values_list("pk", flat=True):
-            if user.is_in_group(pk=group_id):
+        for group in buying_groups:
+            if user.is_in_group(pk=group.id):
                return True
        return False

@ -690,14 +705,14 @@ class Selling(models.Model):
            self.customer.amount -= self.quantity * self.unit_price
            self.customer.save(allow_negative=allow_negative, is_selling=True)
            self.is_validated = True
-        u = User.objects.filter(id=self.customer.user.id).first()
-        if u.was_subscribed:
+        user = self.customer.user
+        if user.was_subscribed:
            if (
                self.product
                and self.product.id == settings.SITH_PRODUCT_SUBSCRIPTION_ONE_SEMESTER
            ):
                sub = Subscription(
-                    member=u,
+                    member=user,
                    subscription_type="un-semestre",
                    payment_method="EBOUTIC",
                    location="EBOUTIC",
@ -719,9 +734,8 @@ class Selling(models.Model):
                self.product
                and self.product.id == settings.SITH_PRODUCT_SUBSCRIPTION_TWO_SEMESTERS
            ):
-                u = User.objects.filter(id=self.customer.user.id).first()
                sub = Subscription(
-                    member=u,
+                    member=user,
                    subscription_type="deux-semestres",
                    payment_method="EBOUTIC",
                    location="EBOUTIC",
@ -739,13 +753,13 @@ class Selling(models.Model):
                    start=sub.subscription_start,
                )
                sub.save()
-        if self.customer.user.preferences.notify_on_click:
+        if user.preferences.notify_on_click:
            Notification(
-                user=self.customer.user,
+                user=user,
                url=reverse(
                    "core:user_account_detail",
                    kwargs={
-                        "user_id": self.customer.user.id,
+                        "user_id": user.id,
                        "year": self.date.year,
                        "month": self.date.month,
                    },
@ -754,19 +768,15 @@ class Selling(models.Model):
                type="SELLING",
            ).save()
        super().save(*args, **kwargs)
-        try:
-            # The product has no id until it's saved
-            if self.product.eticket:
-                self.send_mail_customer()
-        except:
-            pass
+        if hasattr(self.product, "eticket"):
+            self.send_mail_customer()

-    def is_owned_by(self, user):
+    def is_owned_by(self, user: User) -> bool:
        if user.is_anonymous:
            return False
-        return user.is_owner(self.counter) and self.payment_method != "CARD"
+        return self.payment_method != "CARD" and user.is_owner(self.counter)

-    def can_be_viewed_by(self, user):
+    def can_be_viewed_by(self, user: User) -> bool:
        if (
            not hasattr(self, "customer") or self.customer is None
        ):  # Customer can be set to Null
@ -812,7 +822,9 @@ class Selling(models.Model):
            "url": self.customer.get_full_url(),
            "eticket": self.get_eticket_full_url(),
        }
-        self.customer.user.email_user(subject, message_txt, html_message=message_html)
+        self.customer.user.email_user(
+            subject, message_txt, html_message=message_html, fail_silently=True
+        )

    def get_eticket_full_url(self):
        eticket_url = reverse("counter:eticket_pdf", kwargs={"selling_id": self.id})
--- a/counter/templates/counter/counter_click.jinja
+++ b/counter/templates/counter/counter_click.jinja
@ -7,7 +7,6 @@

 {% block additional_js %}
  <script src="{{ static('counter/js/counter_click.js') }}" defer></script>
-  <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
 {% endblock %}

 {% block info_boxes %}
--- a/counter/tests.py
+++ b/counter/tests.py
@ -16,8 +16,9 @@ import json
 import re
 import string

+import pytest
 from django.core.cache import cache
-from django.test import TestCase
+from django.test import Client, TestCase
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.timezone import timedelta
@ -303,18 +304,11 @@ class TestCounterStats(TestCase):
        ]


-class TestBillingInfo(TestCase):
-    @classmethod
-    def setUpTestData(cls):
-        cls.payload_1 = {
-            "first_name": "Subscribed",
-            "last_name": "User",
-            "address_1": "1 rue des Huns",
-            "zip_code": "90000",
-            "city": "Belfort",
-            "country": "FR",
-        }
-        cls.payload_2 = {
+@pytest.mark.django_db
+class TestBillingInfo:
+    @pytest.fixture
+    def payload(self):
+        return {
            "first_name": "Subscribed",
            "last_name": "User",
            "address_1": "3, rue de Troyes",
@ -322,213 +316,80 @@ class TestBillingInfo(TestCase):
            "city": "Sète",
            "country": "FR",
        }
-        cls.root = User.objects.get(username="root")
-        cls.subscriber = User.objects.get(username="subscriber")

-    def test_edit_infos(self):
-        user = self.subscriber
-        BillingInfo.objects.get_or_create(
-            customer=user.customer, defaults=self.payload_1
-        )
-        self.client.force_login(user)
-        response = self.client.post(
-            reverse("counter:edit_billing_info", args=[user.id]),
-            json.dumps(self.payload_2),
+    def test_edit_infos(self, client: Client, payload: dict):
+        user = subscriber_user.make()
+        baker.make(BillingInfo, customer=user.customer)
+        client.force_login(user)
+        response = client.put(
+            reverse("api:put_billing_info", args=[user.id]),
+            json.dumps(payload),
            content_type="application/json",
        )
-        user = User.objects.get(username="subscriber")
+        user.refresh_from_db()
        infos = BillingInfo.objects.get(customer__user=user)
        assert response.status_code == 200
-        self.assertJSONEqual(response.content, {"errors": None})
        assert hasattr(user.customer, "billing_infos")
        assert infos.customer == user.customer
-        assert infos.first_name == "Subscribed"
-        assert infos.last_name == "User"
-        assert infos.address_1 == "3, rue de Troyes"
-        assert infos.address_2 is None
-        assert infos.zip_code == "34301"
-        assert infos.city == "Sète"
-        assert infos.country == "FR"
+        for key, val in payload.items():
+            assert getattr(infos, key) == val

-    def test_create_infos_for_user_with_account(self):
-        user = User.objects.get(username="subscriber")
-        if hasattr(user.customer, "billing_infos"):
-            user.customer.billing_infos.delete()
-        self.client.force_login(user)
-        response = self.client.post(
-            reverse("counter:create_billing_info", args=[user.id]),
-            json.dumps(self.payload_1),
+    @pytest.mark.parametrize(
+        "user_maker", [subscriber_user.make, lambda: baker.make(User)]
+    )
+    @pytest.mark.django_db
+    def test_create_infos(self, client: Client, user_maker, payload):
+        user = user_maker()
+        client.force_login(user)
+        assert not BillingInfo.objects.filter(customer__user=user).exists()
+        response = client.put(
+            reverse("api:put_billing_info", args=[user.id]),
+            json.dumps(payload),
            content_type="application/json",
        )
-        user = User.objects.get(username="subscriber")
-        infos = BillingInfo.objects.get(customer__user=user)
        assert response.status_code == 200
-        self.assertJSONEqual(response.content, {"errors": None})
-        assert hasattr(user.customer, "billing_infos")
-        assert infos.customer == user.customer
-        assert infos.first_name == "Subscribed"
-        assert infos.last_name == "User"
-        assert infos.address_1 == "1 rue des Huns"
-        assert infos.address_2 is None
-        assert infos.zip_code == "90000"
-        assert infos.city == "Belfort"
-        assert infos.country == "FR"
-
-    def test_create_infos_for_user_without_account(self):
-        user = User.objects.get(username="subscriber")
-        if hasattr(user, "customer"):
-            user.customer.delete()
-        self.client.force_login(user)
-        response = self.client.post(
-            reverse("counter:create_billing_info", args=[user.id]),
-            json.dumps(self.payload_1),
-            content_type="application/json",
-        )
-        user = User.objects.get(username="subscriber")
+        user.refresh_from_db()
        assert hasattr(user, "customer")
-        assert hasattr(user.customer, "billing_infos")
-        assert response.status_code == 200
-        self.assertJSONEqual(response.content, {"errors": None})
        infos = BillingInfo.objects.get(customer__user=user)
-        self.assertEqual(user.customer, infos.customer)
-        assert infos.first_name == "Subscribed"
-        assert infos.last_name == "User"
-        assert infos.address_1 == "1 rue des Huns"
-        assert infos.address_2 is None
-        assert infos.zip_code == "90000"
-        assert infos.city == "Belfort"
-        assert infos.country == "FR"
-
-    def test_create_invalid(self):
-        user = User.objects.get(username="subscriber")
-        if hasattr(user.customer, "billing_infos"):
-            user.customer.billing_infos.delete()
-        self.client.force_login(user)
-        # address_1, zip_code and country are missing
-        payload = {
-            "first_name": user.first_name,
-            "last_name": user.last_name,
-            "city": "Belfort",
-        }
-        response = self.client.post(
-            reverse("counter:create_billing_info", args=[user.id]),
-            json.dumps(payload),
-            content_type="application/json",
-        )
-        user = User.objects.get(username="subscriber")
-        self.assertEqual(400, response.status_code)
-        assert not hasattr(user.customer, "billing_infos")
-        expected_errors = {
-            "errors": [
-                {"field": "Adresse 1", "messages": ["Ce champ est obligatoire."]},
-                {"field": "Code postal", "messages": ["Ce champ est obligatoire."]},
-                {"field": "Country", "messages": ["Ce champ est obligatoire."]},
-            ]
-        }
-        self.assertJSONEqual(response.content, expected_errors)
-
-    def test_edit_invalid(self):
-        user = User.objects.get(username="subscriber")
-        BillingInfo.objects.get_or_create(
-            customer=user.customer, defaults=self.payload_1
-        )
-        self.client.force_login(user)
-        # address_1, zip_code and country are missing
-        payload = {
-            "first_name": user.first_name,
-            "last_name": user.last_name,
-            "city": "Belfort",
-        }
-        response = self.client.post(
-            reverse("counter:edit_billing_info", args=[user.id]),
-            json.dumps(payload),
-            content_type="application/json",
-        )
-        user = User.objects.get(username="subscriber")
-        self.assertEqual(400, response.status_code)
-        assert hasattr(user.customer, "billing_infos")
-        expected_errors = {
-            "errors": [
-                {"field": "Adresse 1", "messages": ["Ce champ est obligatoire."]},
-                {"field": "Code postal", "messages": ["Ce champ est obligatoire."]},
-                {"field": "Country", "messages": ["Ce champ est obligatoire."]},
-            ]
-        }
-        self.assertJSONEqual(response.content, expected_errors)
-
-    def test_edit_other_user(self):
-        user = User.objects.get(username="sli")
-        self.client.login(username="subscriber", password="plop")
-        BillingInfo.objects.get_or_create(
-            customer=user.customer, defaults=self.payload_1
-        )
-        response = self.client.post(
-            reverse("counter:edit_billing_info", args=[user.id]),
-            json.dumps(self.payload_2),
-            content_type="application/json",
-        )
-        self.assertEqual(403, response.status_code)
-
-    def test_edit_not_existing_infos(self):
-        user = User.objects.get(username="subscriber")
-        if hasattr(user.customer, "billing_infos"):
-            user.customer.billing_infos.delete()
-        self.client.force_login(user)
-        response = self.client.post(
-            reverse("counter:edit_billing_info", args=[user.id]),
-            json.dumps(self.payload_2),
-            content_type="application/json",
-        )
-        self.assertEqual(404, response.status_code)
-
-    def test_edit_by_root(self):
-        user = User.objects.get(username="subscriber")
-        BillingInfo.objects.get_or_create(
-            customer=user.customer, defaults=self.payload_1
-        )
-        self.client.force_login(self.root)
-        response = self.client.post(
-            reverse("counter:edit_billing_info", args=[user.id]),
-            json.dumps(self.payload_2),
-            content_type="application/json",
-        )
-        assert response.status_code == 200
-        user = User.objects.get(username="subscriber")
-        infos = BillingInfo.objects.get(customer__user=user)
-        self.assertJSONEqual(response.content, {"errors": None})
-        assert hasattr(user.customer, "billing_infos")
-        self.assertEqual(user.customer, infos.customer)
-        self.assertEqual("Subscribed", infos.first_name)
-        self.assertEqual("User", infos.last_name)
-        self.assertEqual("3, rue de Troyes", infos.address_1)
-        self.assertEqual(None, infos.address_2)
-        self.assertEqual("34301", infos.zip_code)
-        self.assertEqual("Sète", infos.city)
-        self.assertEqual("FR", infos.country)
-
-    def test_create_by_root(self):
-        user = User.objects.get(username="subscriber")
-        if hasattr(user.customer, "billing_infos"):
-            user.customer.billing_infos.delete()
-        self.client.force_login(self.root)
-        response = self.client.post(
-            reverse("counter:create_billing_info", args=[user.id]),
-            json.dumps(self.payload_2),
-            content_type="application/json",
-        )
-        assert response.status_code == 200
-        user = User.objects.get(username="subscriber")
-        infos = BillingInfo.objects.get(customer__user=user)
-        self.assertJSONEqual(response.content, {"errors": None})
        assert hasattr(user.customer, "billing_infos")
        assert infos.customer == user.customer
-        assert infos.first_name == "Subscribed"
-        assert infos.last_name == "User"
-        assert infos.address_1 == "3, rue de Troyes"
-        assert infos.address_2 is None
-        assert infos.zip_code == "34301"
-        assert infos.city == "Sète"
-        assert infos.country == "FR"
+        for key, val in payload.items():
+            assert getattr(infos, key) == val
+
+    def test_invalid_data(self, client: Client, payload):
+        user = subscriber_user.make()
+        client.force_login(user)
+        # address_1, zip_code and country are missing
+        del payload["city"]
+        response = client.put(
+            reverse("api:put_billing_info", args=[user.id]),
+            json.dumps(payload),
+            content_type="application/json",
+        )
+        assert response.status_code == 422
+        user.customer.refresh_from_db()
+        assert not hasattr(user.customer, "billing_infos")
+
+    @pytest.mark.parametrize(
+        ("operator_maker", "expected_code"),
+        [
+            (subscriber_user.make, 403),
+            (lambda: baker.make(User), 403),
+            (lambda: baker.make(User, is_superuser=True), 200),
+        ],
+    )
+    def test_edit_other_user(
+        self, client: Client, operator_maker, expected_code: int, payload: dict
+    ):
+        user = subscriber_user.make()
+        client.force_login(operator_maker())
+        baker.make(BillingInfo, customer=user.customer)
+        response = client.put(
+            reverse("api:put_billing_info", args=[user.id]),
+            json.dumps(payload),
+            content_type="application/json",
+        )
+        assert response.status_code == expected_code


 class TestBarmanConnection(TestCase):
--- a/counter/urls.py
+++ b/counter/urls.py
@ -57,16 +57,6 @@ urlpatterns = [
        StudentCardDeleteView.as_view(),
        name="delete_student_card",
    ),
-    path(
-        "customer/<int:user_id>/billing_info/create",
-        create_billing_info,
-        name="create_billing_info",
-    ),
-    path(
-        "customer/<int:user_id>/billing_info/edit",
-        edit_billing_info,
-        name="edit_billing_info",
-    ),
    path("admin/<int:counter_id>/", CounterEditView.as_view(), name="admin"),
    path(
        "admin/<int:counter_id>/prop/",
--- a/counter/utils.py
+++ b/counter/utils.py
@ -0,0 +1,35 @@
+from urllib.parse import urlparse
+
+from django.http import HttpRequest
+from django.urls import resolve
+
+from counter.models import Counter
+
+
+def is_logged_in_counter(request: HttpRequest) -> bool:
+    """Check if the request is sent from a device logged to a counter.
+
+    The request must also be sent within the frame of a counter's activity.
+    Trying to use this function to manage access to non-sas
+    related resources probably won't work.
+
+    A request is considered as coming from a logged counter if :
+
+    - Its referer comes from the counter app
+      (eg. fetching user pictures from the click UI)
+      or the request path belongs to the counter app
+      (eg. the barman went back to the main by missclick and go back
+      to the counter)
+    - The current session has a counter token associated with it.
+    - A counter with this token exists.
+    """
+    referer_ok = (
+        "HTTP_REFERER" in request.META
+        and resolve(urlparse(request.META["HTTP_REFERER"]).path).app_name == "counter"
+    )
+    return (
+        (referer_ok or request.resolver_match.app_name == "counter")
+        and "counter_token" in request.session
+        and request.session["counter_token"]
+        and Counter.objects.filter(token=request.session["counter_token"]).exists()
+    )
--- a/counter/views.py
+++ b/counter/views.py
@ -12,7 +12,6 @@
 # OR WITHIN THE LOCAL FILE "LICENSE"
 #
 #
-import json
 import re
 from datetime import datetime, timedelta
 from datetime import timezone as tz
@ -21,7 +20,6 @@ from urllib.parse import parse_qs

 from django import forms
 from django.conf import settings
-from django.contrib.auth.decorators import login_required
 from django.core.exceptions import PermissionDenied
 from django.db import DataError, transaction
 from django.db.models import F
@ -56,7 +54,6 @@ from core.utils import get_semester_code, get_start_of_semester
 from core.views import CanEditMixin, CanViewMixin, TabedViewMixin
 from core.views.forms import LoginForm
 from counter.forms import (
-    BillingInfoForm,
    CashSummaryFormBase,
    CounterEditForm,
    EticketForm,
@ -67,7 +64,6 @@ from counter.forms import (
    StudentCardForm,
 )
 from counter.models import (
-    BillingInfo,
    CashRegisterSummary,
    CashRegisterSummaryItem,
    Counter,
@ -80,6 +76,7 @@ from counter.models import (
    Selling,
    StudentCard,
 )
+from counter.utils import is_logged_in_counter


 class CounterAdminMixin(View):
@ -901,15 +898,9 @@ class RefillingDeleteView(DeleteView):
    def dispatch(self, request, *args, **kwargs):
        """We have here a very particular right handling, we can't inherit from CanEditPropMixin."""
        self.object = self.get_object()
-        if (
-            timezone.now() - self.object.date
-            <= timedelta(minutes=settings.SITH_LAST_OPERATIONS_LIMIT)
-            and "counter_token" in request.session.keys()
-            and request.session["counter_token"]
-            and Counter.objects.filter(  # check if not null for counters that have no token set
-                token=request.session["counter_token"]
-            ).exists()
-        ):
+        if timezone.now() - self.object.date <= timedelta(
+            minutes=settings.SITH_LAST_OPERATIONS_LIMIT
+        ) and is_logged_in_counter(request):
            self.success_url = reverse(
                "counter:details", kwargs={"counter_id": self.object.counter.id}
            )
@ -932,15 +923,9 @@ class SellingDeleteView(DeleteView):
    def dispatch(self, request, *args, **kwargs):
        """We have here a very particular right handling, we can't inherit from CanEditPropMixin."""
        self.object = self.get_object()
-        if (
-            timezone.now() - self.object.date
-            <= timedelta(minutes=settings.SITH_LAST_OPERATIONS_LIMIT)
-            and "counter_token" in request.session.keys()
-            and request.session["counter_token"]
-            and Counter.objects.filter(  # check if not null for counters that have no token set
-                token=request.session["counter_token"]
-            ).exists()
-        ):
+        if timezone.now() - self.object.date <= timedelta(
+            minutes=settings.SITH_LAST_OPERATIONS_LIMIT
+        ) and is_logged_in_counter(request):
            self.success_url = reverse(
                "counter:details", kwargs={"counter_id": self.object.counter.id}
            )
@ -1175,14 +1160,7 @@ class CounterLastOperationsView(CounterTabsMixin, CanViewMixin, DetailView):
    def dispatch(self, request, *args, **kwargs):
        """We have here again a very particular right handling."""
        self.object = self.get_object()
-        if (
-            self.object.barmen_list
-            and "counter_token" in request.session.keys()
-            and request.session["counter_token"]
-            and Counter.objects.filter(  # check if not null for counters that have no token set
-                token=request.session["counter_token"]
-            ).exists()
-        ):
+        if is_logged_in_counter(request) and self.object.barmen_list:
            return super().dispatch(request, *args, **kwargs)
        return HttpResponseRedirect(
            reverse("counter:details", kwargs={"counter_id": self.object.id})
@ -1215,14 +1193,7 @@ class CounterCashSummaryView(CounterTabsMixin, CanViewMixin, DetailView):
    def dispatch(self, request, *args, **kwargs):
        """We have here again a very particular right handling."""
        self.object = self.get_object()
-        if (
-            self.object.barmen_list
-            and "counter_token" in request.session.keys()
-            and request.session["counter_token"]
-            and Counter.objects.filter(  # check if not null for counters that have no token set
-                token=request.session["counter_token"]
-            ).exists()
-        ):
+        if is_logged_in_counter(request) and self.object.barmen_list:
            return super().dispatch(request, *args, **kwargs)
        return HttpResponseRedirect(
            reverse("counter:details", kwargs={"counter_id": self.object.id})
@ -1594,51 +1565,3 @@ class StudentCardFormView(FormView):
        return reverse_lazy(
            "core:user_prefs", kwargs={"user_id": self.customer.user.pk}
        )
-
-
-def __manage_billing_info_req(request, user_id, *, delete_if_fail=False):
-    data = json.loads(request.body)
-    form = BillingInfoForm(data)
-    if not form.is_valid():
-        if delete_if_fail:
-            Customer.objects.get(user__id=user_id).billing_infos.delete()
-        errors = [
-            {"field": str(form.fields[k].label), "messages": v}
-            for k, v in form.errors.items()
-        ]
-        content = json.dumps({"errors": errors})
-        return HttpResponse(status=400, content=content)
-    if form.is_valid():
-        infos = Customer.objects.get(user__id=user_id).billing_infos
-        for field in form.fields:
-            infos.__dict__[field] = form[field].value()
-        infos.save()
-        content = json.dumps({"errors": None})
-        return HttpResponse(status=200, content=content)
-
-
-@login_required
-@require_POST
-def create_billing_info(request, user_id):
-    user = request.user
-    if user.id != user_id and not user.has_perm("counter:add_billinginfo"):
-        raise PermissionDenied()
-    user = get_object_or_404(User, pk=user_id)
-    customer, _ = Customer.get_or_create(user)
-    BillingInfo.objects.create(customer=customer)
-    return __manage_billing_info_req(request, user_id, delete_if_fail=True)
-
-
-@login_required
-@require_POST
-def edit_billing_info(request, user_id):
-    user = request.user
-    if user.id != user_id and not user.has_perm("counter:change_billinginfo"):
-        raise PermissionDenied()
-    user = get_object_or_404(User, pk=user_id)
-    if not hasattr(user, "customer"):
-        raise Http404
-    if not hasattr(user.customer, "billing_infos"):
-        raise Http404
-
-    return __manage_billing_info_req(request, user_id)
--- a/docs/reference/antispam/forms.md
+++ b/docs/reference/antispam/forms.md
@ -0,0 +1 @@
+::: antispam.forms
--- a/docs/reference/antispam/models.md
+++ b/docs/reference/antispam/models.md
@ -0,0 +1 @@
+::: antispam.models
--- a/docs/tutorial/install-advanced.md
+++ b/docs/tutorial/install-advanced.md
@ -0,0 +1,275 @@
+Si le projet marche chez vous après avoir suivi les étapes 
+données dans la page précédente, alors vous pouvez développer.
+Ce que nous nous vous avons présenté n'est absolument pas
+la même configuration que celle du site, mais elle n'en
+est pas moins fonctionnelle.
+
+Cependant, vous pourriez avoir envie de faire en sorte
+que votre environnement de développement soit encore plus
+proche de celui en production.
+Voici les étapes à suivre pour ça.
+
+!!!tip
+
+    Configurer les dépendances du projet
+    peut demander beaucoup d'allers et retours entre
+    votre répertoire projet et divers autres emplacements.
+
+    Vous pouvez gagner du temps en déclarant un alias :
+
+    === "bash/zsh"
+
+        ```bash
+        alias cdp="cd /repertoire/du/projet"
+        ```
+
+    === "nu"
+
+        ```nu
+        alias cdp = cd /repertoire/du/projet
+        ```
+
+    Chaque fois qu'on vous demandera de retourner au répertoire
+    projet, vous aurez juste à faire :
+
+    ```bash
+    cdp
+    ```
+
+## Installer les dépendances manquantes
+
+Pour installer complètement le projet, il va falloir
+quelques dépendances en plus.
+Commencez par installer les dépendances système :
+
+=== "Linux"
+
+    === "Debian/Ubuntu"
+
+        ```bash
+        sudo apt install postgresql redis libq-dev nginx
+        ```
+
+    === "Arch Linux"
+    
+        ```bash
+        sudo pacman -S postgresql redis nginx
+        ```
+
+=== "macOS"
+
+    ```bash
+    brew install postgresql redis lipbq nginx
+    export PATH="/usr/local/opt/libpq/bin:$PATH"
+    source ~/.zshrc
+    ```
+
+Puis, installez les dépendances poetry nécessaires en prod :
+
+```bash
+poetry install --with prod
+```
+
+!!! info
+
+    Certaines dépendances peuvent être un peu longues à installer
+    (notamment psycopg-c).
+    C'est parce que ces dépendances compilent certains modules
+    à l'installation.
+
+## Configurer Redis
+
+Redis est utilisé comme cache.
+Assurez-vous qu'il tourne :
+
+```bash
+sudo systemctl redis status
+```
+
+Et s'il ne tourne pas, démarrez-le :
+
+```bash
+sudo systemctl start redis
+sudo systemctl enable redis  # si vous voulez que redis démarre automatiquement au boot
+```
+
+Puis ajoutez le code suivant à la fin de votre fichier
+`settings_custom.py` :
+
+```python
+CACHES = {
+    "default": {
+        "BACKEND": "django.core.cache.backends.redis.RedisCache",
+        "LOCATION": "redis://127.0.0.1:6379",
+    }
+}
+```
+
+## Configurer PostgreSQL
+
+PostgreSQL est utilisé comme base de données.
+
+Passez sur le compte de l'utilisateur postgres 
+et lancez l'invite de commande sql :
+
+```bash
+sudo su - postgres
+psql
+```
+
+Puis configurez la base de données :
+
+```postgresql
+CREATE DATABASE sith;
+CREATE USER sith WITH PASSWORD 'password';
+
+ALTER ROLE sith SET client_encoding TO 'utf8';
+ALTER ROLE sith SET default_transaction_isolation TO 'read committed';
+ALTER ROLE sith SET timezone TO 'UTC';
+
+GRANT ALL PRIVILEGES ON DATABASE sith TO SITH;
+\q
+```
+
+Si vous utilisez une version de PostgreSQL supérieure ou égale
+à 15, vous devez exécuter une commande en plus,
+en étant connecté en tant que postgres :
+
+```bash
+psql -d sith -c "GRANT ALL PRIVILEGES ON SCHEMA public to sith";
+```
+
+Puis ajoutez le code suivant à la fin de votre
+`settings_custom.py` :
+
+```python
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": "sith",
+        "USER": "sith",
+        "PASSWORD": "password",
+        "HOST": "localhost",
+        "PORT": "",  # laissez ce champ vide pour que le choix du port soit automatique
+    }
+}
+```
+
+Enfin, créez vos données :
+
+```bash
+poetry run ./manage.py populate
+```
+
+!!! note
+
+    N'oubliez de quitter la session de l'utilisateur
+    postgres après avoir configuré la db.
+
+## Configurer nginx
+
+Nginx est utilisé comme reverse-proxy.
+
+!!!warning
+
+    Nginx ne sert pas les fichiers de la même manière que Django.
+    Les fichiers statiques servis seront ceux du dossier `/static`,
+    tels que générés par les commandes `collectstatic` et
+    `compilestatic`.
+    Si vous changez du css ou du js sans faire tourner
+    ces commandes, ces changements ne seront pas reflétés.
+
+    De manière générale, utiliser nginx en dev n'est pas très utile,
+    voire est gênant si vous travaillez sur le front.
+    Ne vous embêtez pas avec ça, sauf par curiosité intellectuelle,
+    ou bien si vous voulez tester spécifiquement 
+    des interactions avec le reverse proxy.
+
+
+Placez-vous dans le répertoire `/etc/nginx`, 
+et créez les dossiers et fichiers nécessaires :
+
+```bash
+cd /etc/nginx/
+sudo mkdir sites-enabled sites-available
+sudo touch sites-available/sith.conf
+sudo ln -s /etc/nginx/sites-available/sith.conf sites-enabled/sith.conf
+```
+
+Puis ouvrez le fichier `sites-available/sith.conf` et mettez-y le contenu suivant :
+
+```nginx
+server {
+    listen 8000;
+
+    server_name _;
+
+    location /static/;
+        root /repertoire/du/projet;
+    }
+    location ~ ^/data/(products|com|club_logos)/ {
+        root /repertoire/du/projet;
+    }
+    location ~ ^/data/(SAS|profiles|users|.compressed|.thumbnails)/ {
+        # https://nginx.org/en/docs/http/ngx_http_core_module.html#internal
+        internal;
+        root /repertoire/du/projet;
+    }
+
+    location / {
+        proxy_pass http://127.0.0.1:8001;
+        include uwsgi_params;
+    }
+}
+```
+
+Ouvrez le fichier `nginx.conf`, et ajoutez la configuration suivante :
+
+```nginx
+http {
+    # Toute la configuration
+    # éventuellement déjà là
+
+    include /etc/nginx/sites-enabled/sith.conf;
+}
+```
+
+Vérifiez que votre configuration est bonne :
+
+```bash
+sudo nginx -t
+```
+
+Si votre configuration n'est pas bonne, corrigez-la.
+Puis lancez ou relancez nginx :
+
+```bash
+sudo systemctl restart nginx
+```
+
+Dans votre `settings_custom.py`, remplacez `DEBUG=True` par `DEBUG=False`.
+
+Enfin, démarrez le serveur Django :
+
+```bash
+cd /repertoire/du/projet
+poetry run ./manage.py runserver 8001
+```
+
+Et c'est bon, votre reverse-proxy est prêt à tourner devant votre serveur.
+Nginx écoutera sur le port 8000.
+Toutes les requêtes vers des fichiers statiques et les medias publiques
+seront seront servies directement par nginx.
+Toutes les autres requêtes seront transmises au serveur django.
+
+
+## Mettre à jour la base de données antispam
+
+L'anti spam nécessite d'être à jour par rapport à des bases de données externes.
+Il existe une commande pour ça qu'il faut lancer régulièrement.
+Lors de la mise en production, il est judicieux de configurer
+un cron pour la mettre à jour au moins une fois par jour.
+
+```bash
+python manage.py update_spam_database
+```
--- a/docs/tutorial/structure.md
+++ b/docs/tutorial/structure.md
@ -64,17 +64,19 @@ sith3/
 │   └── ...
 ├── trombi/ (22)
 │   └── ...
+├── antispam/ (23)
+│   └── ...
 │
-├── .coveragerc (23)
-├── .envrc (24)
+├── .coveragerc (24)
+├── .envrc (25)
 ├── .gitattributes
 ├── .gitignore
 ├── .mailmap
 ├── .env.exemple
-├── manage.py (25)
-├── mkdocs.yml (26)
+├── manage.py (26)
+├── mkdocs.yml (27)
 ├── poetry.lock
-├── pyproject.toml (27)
+├── pyproject.toml (28)
 └── README.md
 ```
 </div>
@ -112,15 +114,16 @@ sith3/
 19. Application principale du projet, contenant sa configuration.
 20. Gestion des stocks des comptoirs.
 21. Gestion des cotisations des utilisateurs du site.
-22. Gestion des trombinoscopes.
-23. Fichier de configuration de coverage.
-24. Fichier de configuration de direnv.
-25. Fichier généré automatiquement par Django. C'est lui
+22. Fonctionalitées pour gérer le spam.
+23. Gestion des trombinoscopes.
+24. Fichier de configuration de coverage.
+25. Fichier de configuration de direnv.
+26. Fichier généré automatiquement par Django. C'est lui
    qui permet d'appeler des commandes de gestion du projet
    avec la syntaxe `python ./manage.py <nom de la commande>`
-26. Le fichier de configuration de la documentation,
+27. Le fichier de configuration de la documentation,
    avec ses plugins et sa table des matières.
-27. Le fichier où sont déclarés les dépendances et la configuration
+28. Le fichier où sont déclarés les dépendances et la configuration
    de certaines d'entre elles.
    

--- a/eboutic/admin.py
+++ b/eboutic/admin.py
@ -19,9 +19,20 @@ from eboutic.models import *

@admin.register(Basket)
 class BasketAdmin(admin.ModelAdmin):
-    list_display = ("user", "date", "get_total")
+    list_display = ("user", "date", "total")
    autocomplete_fields = ("user",)

+    def get_queryset(self, request):
+        return (
+            super()
+            .get_queryset(request)
+            .annotate(
+                total=Sum(
+                    F("items__quantity") * F("items__product_unit_price"), default=0
+                )
+            )
+        )
+

@admin.register(BasketItem)
 class BasketItemAdmin(admin.ModelAdmin):
--- a/eboutic/api.py
+++ b/eboutic/api.py
@ -0,0 +1,38 @@
+from django.shortcuts import get_object_or_404
+from ninja_extra import ControllerBase, api_controller, route
+from ninja_extra.exceptions import NotFound, PermissionDenied
+from ninja_extra.permissions import IsAuthenticated
+from pydantic import NonNegativeInt
+
+from core.models import User
+from counter.models import BillingInfo, Customer
+from eboutic.models import Basket
+from eboutic.schemas import BillingInfoSchema
+
+
+@api_controller("/etransaction", permissions=[IsAuthenticated])
+class EtransactionInfoController(ControllerBase):
+    @route.put("/billing-info/{user_id}", url_name="put_billing_info")
+    def put_user_billing_info(self, user_id: NonNegativeInt, info: BillingInfoSchema):
+        """Update or create the billing info of this user."""
+        if user_id == self.context.request.user.id:
+            user = self.context.request.user
+        elif self.context.request.user.is_root:
+            user = get_object_or_404(User, pk=user_id)
+        else:
+            raise PermissionDenied
+        customer, _ = Customer.get_or_create(user)
+        BillingInfo.objects.update_or_create(
+            customer=customer, defaults=info.model_dump(exclude_none=True)
+        )
+
+    @route.get("/data", url_name="etransaction_data", include_in_schema=False)
+    def fetch_etransaction_data(self):
+        """Generate the data to pay an eboutic command with paybox.
+
+        The data is generated with the basket that is used by the current session.
+        """
+        basket = Basket.from_session(self.context.request.session)
+        if basket is None:
+            raise NotFound
+        return dict(basket.get_e_transaction_data())
--- a/eboutic/forms.py
+++ b/eboutic/forms.py
@ -20,17 +20,15 @@
 # Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 #
-
-import json
-import re
-import typing
+from functools import cached_property
 from urllib.parse import unquote

 from django.http import HttpRequest
 from django.utils.translation import gettext as _
-from sentry_sdk import capture_message
+from pydantic import ValidationError

 from eboutic.models import get_eboutic_products
+from eboutic.schemas import PurchaseItemList, PurchaseItemSchema


 class BasketForm:
@ -43,8 +41,7 @@ class BasketForm:
    Thus this class is a pure standalone and performs its operations by its own means.
    However, it still tries to share some similarities with a standard django Form.

-    Example:
-    -------
+    Examples:
        ::

            def my_view(request):
@ -62,28 +59,13 @@ class BasketForm:
    You can also use a little shortcut by directly calling `form.is_valid()`
    without calling `form.clean()`. In this case, the latter method shall be
    implicitly called.
-
    """

-    # check the json is an array containing non-nested objects.
-    # values must be strings or numbers
-    # this is matched :
-    # [{"id": 4, "name": "[PROMO 22] badges", "unit_price": 2.3, "quantity": 2}]
-    # but this is not :
-    # [{"id": {"nested_id": 10}, "name": "[PROMO 22] badges", "unit_price": 2.3, "quantity": 2}]
-    # and neither does this :
-    # [{"id": ["nested_id": 10], "name": "[PROMO 22] badges", "unit_price": 2.3, "quantity": 2}]
-    # and neither does that :
-    # [{"id": null, "name": "[PROMO 22] badges", "unit_price": 2.3, "quantity": 2}]
-    json_cookie_re = re.compile(
-        r"^\[\s*(\{\s*(\"[^\"]*\":\s*(\"[^\"]{0,64}\"|\d{0,5}\.?\d+),?\s*)*\},?\s*)*\s*\]$"
-    )
-
    def __init__(self, request: HttpRequest):
        self.user = request.user
        self.cookies = request.COOKIES
        self.error_messages = set()
-        self.correct_cookie = []
+        self.correct_items = []

    def clean(self) -> None:
        """Perform all the checks, but return nothing.
@ -98,70 +80,29 @@ class BasketForm:
            - all the ids refer to products the user is allowed to buy
            - all the quantities are positive integers
        """
-        # replace escaped double quotes by single quotes, as the RegEx used to check the json
-        # does not support escaped double quotes
-        basket = unquote(self.cookies.get("basket_items", "")).replace('\\"', "'")
-
-        if basket in ("[]", ""):
-            self.error_messages.add(_("You have no basket."))
-            return
-
-        # check that the json is not nested before parsing it to make sure
-        # malicious user can't DDoS the server with deeply nested json
-        if not BasketForm.json_cookie_re.match(basket):
-            # As the validation of the cookie goes through a rather boring regex,
-            # we can regularly have to deal with subtle errors that we hadn't forecasted,
-            # so we explicitly lay a Sentry message capture here.
-            capture_message(
-                "Eboutic basket regex checking failed to validate basket json",
-                level="error",
+        try:
+            basket = PurchaseItemList.validate_json(
+                unquote(self.cookies.get("basket_items", "[]"))
            )
+        except ValidationError:
            self.error_messages.add(_("The request was badly formatted."))
            return
-
-        try:
-            basket = json.loads(basket)
-        except json.JSONDecodeError:
-            self.error_messages.add(_("The basket cookie was badly formatted."))
-            return
-
-        if type(basket) is not list or len(basket) == 0:
+        if len(basket) == 0:
            self.error_messages.add(_("Your basket is empty."))
            return
-
+        existing_ids = {product.id for product in get_eboutic_products(self.user)}
        for item in basket:
-            expected_keys = {"id", "quantity", "name", "unit_price"}
-            if type(item) is not dict or set(item.keys()) != expected_keys:
-                self.error_messages.add("One or more items are badly formatted.")
-                continue
-            # check the id field is a positive integer
-            if type(item["id"]) is not int or item["id"] < 0:
-                self.error_messages.add(
-                    _("%(name)s : this product does not exist.")
-                    % {"name": item["name"]}
-                )
-                continue
            # check a product with this id does exist
-            ids = {product.id for product in get_eboutic_products(self.user)}
-            if not item["id"] in ids:
+            if item.product_id in existing_ids:
+                self.correct_items.append(item)
+            else:
                self.error_messages.add(
                    _(
                        "%(name)s : this product does not exist or may no longer be available."
                    )
-                    % {"name": item["name"]}
+                    % {"name": item.name}
                )
                continue
-            if type(item["quantity"]) is not int or item["quantity"] < 0:
-                self.error_messages.add(
-                    _("You cannot buy %(nbr)d %(name)s.")
-                    % {"nbr": item["quantity"], "name": item["name"]}
-                )
-                continue
-
-            # if we arrive here, it means this item has passed all tests
-            self.correct_cookie.append(item)
-        # for loop for item checking ends here
-
        # this function does not return anything.
        # instead, it fills a set containing the collected error messages
        # an empty set means that no error was seen thus everything is ok
@ -174,16 +115,16 @@ class BasketForm:

        If the `clean()` method has not been called beforehand, call it.
        """
-        if self.error_messages == set() and self.correct_cookie == []:
+        if not self.error_messages and not self.correct_items:
            self.clean()
        if self.error_messages:
            return False
        return True

-    def get_error_messages(self) -> typing.List[str]:
+    @cached_property
+    def errors(self) -> list[str]:
        return list(self.error_messages)

-    def get_cleaned_cookie(self) -> str:
-        if not self.correct_cookie:
-            return ""
-        return json.dumps(self.correct_cookie)
+    @cached_property
+    def cleaned_data(self) -> list[PurchaseItemSchema]:
+        return self.correct_items
--- a/eboutic/models.py
+++ b/eboutic/models.py
@ -16,6 +16,7 @@ from __future__ import annotations

 import hmac
 from datetime import datetime
+from typing import Any

 from dict2xml import dict2xml
 from django.conf import settings
@ -38,6 +39,7 @@ def get_eboutic_products(user: User) -> list[Product]:
        .annotate(priority=F("product_type__priority"))
        .annotate(category=F("product_type__name"))
        .annotate(category_comment=F("product_type__comment"))
+        .prefetch_related("buying_groups")  # <-- used in `Product.can_be_sold_to`
    )
    return [p for p in products if p.can_be_sold_to(user)]

@ -57,66 +59,25 @@ class Basket(models.Model):
    def __str__(self):
        return f"{self.user}'s basket ({self.items.all().count()} items)"

-    def add_product(self, p: Product, q: int = 1):
-        """Given p an object of the Product model and q an integer,
-        add q items corresponding to this Product from the basket.
-
-        If this function is called with a product not in the basket, no error will be raised
-        """
-        item = self.items.filter(product_id=p.id).first()
-        if item is None:
-            BasketItem(
-                basket=self,
-                product_id=p.id,
-                product_name=p.name,
-                type_id=p.product_type.id,
-                quantity=q,
-                product_unit_price=p.selling_price,
-            ).save()
-        else:
-            item.quantity += q
-            item.save()
-
-    def del_product(self, p: Product, q: int = 1):
-        """Given p an object of the Product model and q an integer
-        remove q items corresponding to this Product from the basket.
-
-        If this function is called with a product not in the basket, no error will be raised
-        """
-        try:
-            item = self.items.get(product_id=p.id)
-        except BasketItem.DoesNotExist:
-            return
-        item.quantity -= q
-        if item.quantity <= 0:
-            item.delete()
-        else:
-            item.save()
-
-    def clear(self) -> None:
-        """Remove all items from this basket without deleting the basket."""
-        self.items.all().delete()
-
    @cached_property
    def contains_refilling_item(self) -> bool:
        return self.items.filter(
            type_id=settings.SITH_COUNTER_PRODUCTTYPE_REFILLING
        ).exists()

-    def get_total(self) -> float:
-        total = self.items.aggregate(
-            total=Sum(F("quantity") * F("product_unit_price"))
-        )["total"]
-        return float(total) if total is not None else 0
+    @cached_property
+    def total(self) -> float:
+        return float(
+            self.items.aggregate(
+                total=Sum(F("quantity") * F("product_unit_price"), default=0)
+            )["total"]
+        )

    @classmethod
    def from_session(cls, session) -> Basket | None:
        """The basket stored in the session object, if it exists."""
        if "basket_id" in session:
-            try:
-                return cls.objects.get(id=session["basket_id"])
-            except cls.DoesNotExist:
-                return None
+            return cls.objects.filter(id=session["basket_id"]).first()
        return None

    def generate_sales(self, counter, seller: User, payment_method: str):
@ -161,18 +122,24 @@ class Basket(models.Model):
            )
        return sales

-    def get_e_transaction_data(self):
+    def get_e_transaction_data(self) -> list[tuple[str, Any]]:
        user = self.user
        if not hasattr(user, "customer"):
            raise Customer.DoesNotExist
        customer = user.customer
        if not hasattr(user.customer, "billing_infos"):
            raise BillingInfo.DoesNotExist
+        cart = {
+            "shoppingcart": {"total": {"totalQuantity": min(self.items.count(), 99)}}
+        }
+        cart = '<?xml version="1.0" encoding="UTF-8" ?>' + dict2xml(
+            cart, newlines=False
+        )
        data = [
            ("PBX_SITE", settings.SITH_EBOUTIC_PBX_SITE),
            ("PBX_RANG", settings.SITH_EBOUTIC_PBX_RANG),
            ("PBX_IDENTIFIANT", settings.SITH_EBOUTIC_PBX_IDENTIFIANT),
-            ("PBX_TOTAL", str(int(self.get_total() * 100))),
+            ("PBX_TOTAL", str(int(self.total * 100))),
            ("PBX_DEVISE", "978"),  # This is Euro
            ("PBX_CMD", str(self.id)),
            ("PBX_PORTEUR", user.email),
@ -181,14 +148,6 @@ class Basket(models.Model):
            ("PBX_TYPEPAIEMENT", "CARTE"),
            ("PBX_TYPECARTE", "CB"),
            ("PBX_TIME", datetime.now().replace(microsecond=0).isoformat("T")),
-        ]
-        cart = {
-            "shoppingcart": {"total": {"totalQuantity": min(self.items.count(), 99)}}
-        }
-        cart = '<?xml version="1.0" encoding="UTF-8" ?>' + dict2xml(
-            cart, newlines=False
-        )
-        data += [
            ("PBX_SHOPPINGCART", cart),
            ("PBX_BILLING", customer.billing_infos.to_3dsv2_xml()),
        ]
@ -218,10 +177,11 @@ class Invoice(models.Model):
        return f"{self.user} - {self.get_total()} - {self.date}"

    def get_total(self) -> float:
-        total = self.items.aggregate(
-            total=Sum(F("quantity") * F("product_unit_price"))
-        )["total"]
-        return float(total) if total is not None else 0
+        return float(
+            self.items.aggregate(
+                total=Sum(F("quantity") * F("product_unit_price"), default=0)
+            )["total"]
+        )

    def validate(self):
        if self.validated:
@ -284,7 +244,7 @@ class BasketItem(AbstractBaseItem):
    )

    @classmethod
-    def from_product(cls, product: Product, quantity: int):
+    def from_product(cls, product: Product, quantity: int, basket: Basket):
        """Create a BasketItem with the same characteristics as the
        product passed in parameters, with the specified quantity.

@ -293,9 +253,10 @@ class BasketItem(AbstractBaseItem):
            it yourself before saving the model.
        """
        return cls(
+            basket=basket,
            product_id=product.id,
            product_name=product.name,
-            type_id=product.product_type.id,
+            type_id=product.product_type_id,
            quantity=quantity,
            product_unit_price=product.selling_price,
        )
--- a/eboutic/schemas.py
+++ b/eboutic/schemas.py
@ -0,0 +1,33 @@
+from ninja import ModelSchema, Schema
+from pydantic import Field, NonNegativeInt, PositiveInt, TypeAdapter
+
+from counter.models import BillingInfo
+
+
+class PurchaseItemSchema(Schema):
+    product_id: NonNegativeInt = Field(alias="id")
+    name: str
+    unit_price: float
+    quantity: PositiveInt
+
+
+# The eboutic deals with data that is dict mixed with JSON.
+# Hence it would be a hassle to manage it with a proper Schema class,
+# and we use a TypeAdapter instead
+PurchaseItemList = TypeAdapter(list[PurchaseItemSchema])
+
+
+class BillingInfoSchema(ModelSchema):
+    class Meta:
+        model = BillingInfo
+        fields = [
+            "customer",
+            "first_name",
+            "last_name",
+            "address_1",
+            "address_2",
+            "zip_code",
+            "city",
+            "country",
+        ]
+        fields_optional = ["customer"]
--- a/eboutic/static/eboutic/js/eboutic.js
+++ b/eboutic/static/eboutic/js/eboutic.js
@ -30,22 +30,17 @@ function getCookie(name) {
 */
 function get_starting_items() {
    const cookie = getCookie(BASKET_ITEMS_COOKIE_NAME);
-    let output = [];
-
-    try {
-        // Django cookie backend does an utter mess on non-trivial data types
-        // so we must perform a conversion of our own
-        const biscuit = JSON.parse(cookie.replace(/\\054/g, ','));
-        output = Array.isArray(biscuit) ? biscuit : [];
-
-    } catch (e) {}
-
-    output.forEach(item => {
-        let el = document.getElementById(item.id);
-        el.classList.add("selected");
-    });
-
-    return output;
+    if (!cookie) {
+        return []
+    }
+    // Django cookie backend converts `,` to `\054`
+    let parsed = JSON.parse(cookie.replace(/\\054/g, ','));
+    if (typeof parsed === "string") {
+        // In some conditions, a second parsing is needed
+        parsed = JSON.parse(parsed);
+    }
+    const res = Array.isArray(parsed) ? parsed : [];
+    return res.filter((i) => !!document.getElementById(i.id))
 }

 document.addEventListener('alpine:init', () => {
@ -63,7 +58,7 @@ document.addEventListener('alpine:init', () => {

        /**
         * Add 1 to the quantity of an item in the basket
-         * @param {BasketItem} item 
+         * @param {BasketItem} item
         */
        add(item) {
            item.quantity++;
@ -72,18 +67,15 @@ document.addEventListener('alpine:init', () => {

        /**
         * Remove 1 to the quantity of an item in the basket
-         * @param {BasketItem} item_id 
+         * @param {BasketItem} item_id
         */
        remove(item_id) {
            const index = this.items.findIndex(e => e.id === item_id);
-            
+
            if (index < 0) return;
            this.items[index].quantity -= 1;

            if (this.items[index].quantity === 0) {
-                let el = document.getElementById(this.items[index].id);
-                el.classList.remove("selected");
-
                this.items = this.items.filter((e) => e.id !== this.items[index].id);
            }
            this.set_cookies();
@ -93,12 +85,6 @@ document.addEventListener('alpine:init', () => {
         * Remove all the items from the basket & cleans the catalog CSS classes
         */
        clear_basket() {
-            // We remove the class "selected" from all the items in the catalog
-            this.items.forEach(item => {
-                let el = document.getElementById(item.id);
-                el.classList.remove("selected");
-            })
-
            this.items = [];
            this.set_cookies();
        },
@ -108,8 +94,11 @@ document.addEventListener('alpine:init', () => {
         * ! the cookie survives an hour
         */
        set_cookies() {
-            if (this.items.length === 0) document.cookie = `${BASKET_ITEMS_COOKIE_NAME}=;Max-Age=0`;
-            else document.cookie = `${BASKET_ITEMS_COOKIE_NAME}=${encodeURIComponent(JSON.stringify(this.items))};Max-Age=3600`;
+            if (this.items.length === 0) {
+                document.cookie = `${BASKET_ITEMS_COOKIE_NAME}=;Max-Age=0`;
+            } else {
+                document.cookie = `${BASKET_ITEMS_COOKIE_NAME}=${encodeURIComponent(JSON.stringify(this.items))};Max-Age=3600`;
+            }
        },

        /**
@ -145,12 +134,10 @@ document.addEventListener('alpine:init', () => {

            // if the item is not in the basket, we create it
            // else we add + 1 to it
-            if (item === undefined) item = this.create_item(id, name, price);
-            else this.add(item);
-
-            if (item.quantity > 0) {
-                let el = document.getElementById(item.id);
-                el.classList.add("selected");
+            if (!item) {
+                item = this.create_item(id, name, price);
+            } else {
+                this.add(item);
            }
        },
    }))
--- a/eboutic/static/eboutic/js/makecommand.js
+++ b/eboutic/static/eboutic/js/makecommand.js
@ -1,73 +1,70 @@
-document.addEventListener('alpine:init', () => {
-    Alpine.store('bank_payment_enabled', false)
+/**
+ * @readonly
+ * @enum {number}
+ */
+const BillingInfoReqState = {
+    SUCCESS: 1,
+    FAILURE: 2,
+    SENDING: 3,
+};

-    Alpine.store('billing_inputs', {
-        data: JSON.parse(et_data)["data"],
+document.addEventListener("alpine:init", () => {
+    Alpine.store("billing_inputs", {
+        data: et_data,

        async fill() {
            document.getElementById("bank-submit-button").disabled = true;
-            const request = new Request(et_data_url, {
-                method: "GET",
-                headers: {
-                    'Accept': 'application/json',
-                    'Content-Type': 'application/json',
-                },
-            });
-            const res = await fetch(request);
+            const res = await fetch(et_data_url);
            if (res.ok) {
-                const json = await res.json();
-                if (json["data"]) {
-                    this.data = json["data"];
-                }
+                this.data = await res.json();
                document.getElementById("bank-submit-button").disabled = false;
            }
-        }
-    })
+        },
+    });

-    Alpine.data('billing_infos', () => ({
-        errors: [],
-        successful: false,
-        url: billing_info_exist ? edit_billing_info_url : create_billing_info_url,
+    Alpine.data("billing_infos", () => ({
+        /** @type {BillingInfoReqState | null} */
+        req_state: null,

        async send_form() {
+            this.req_state = BillingInfoReqState.SENDING;
            const form = document.getElementById("billing_info_form");
-            const submit_button = form.querySelector("input[type=submit]")
-            submit_button.disabled = true;
            document.getElementById("bank-submit-button").disabled = true;
-            this.successful = false
-
-            let payload = {};
-            for (const elem of form.querySelectorAll("input")) {
-                if (elem.type === "text" && elem.value) {
-                    payload[elem.name] = elem.value;
-                }
-            }
-            const country = form.querySelector("select");
-            if (country && country.value) {
-                payload[country.name] = country.value;
-            }
-            const request = new Request(this.url, {
-                method: "POST",
-                headers: {
-                    'Accept': 'application/json',
-                    'Content-Type': 'application/json',
-                    'X-CSRFToken': getCSRFToken(),
-                },
+            let payload = Object.fromEntries(
+                Array.from(form.querySelectorAll("input, select"))
+                    .filter((elem) => elem.type !== "submit" && elem.value)
+                    .map((elem) => [elem.name, elem.value]),
+            );
+            const res = await fetch(billing_info_url, {
+                method: "PUT",
                body: JSON.stringify(payload),
            });
-            const res = await fetch(request);
-            const json = await res.json();
-            if (json["errors"]) {
-                this.errors = json["errors"];
-            } else {
-                this.errors = [];
-                this.successful = true;
-                this.url = edit_billing_info_url;
+            this.req_state = res.ok
+                ? BillingInfoReqState.SUCCESS
+                : BillingInfoReqState.FAILURE;
+            if (res.ok) {
                Alpine.store("billing_inputs").fill();
            }
-            submit_button.disabled = false;
-        }
-    }))
-})
+        },

+        get_alert_color() {
+            if (this.req_state === BillingInfoReqState.SUCCESS) {
+                return "green";
+            }
+            if (this.req_state === BillingInfoReqState.FAILURE) {
+                return "red";
+            }
+            return "";
+        },

+        get_alert_message() {
+            if (this.req_state === BillingInfoReqState.SUCCESS) {
+                return billing_info_success_message;
+            }
+            if (this.req_state === BillingInfoReqState.FAILURE) {
+                return billing_info_failure_message;
+            }
+            return "";
+        },
+    }));
+});
--- a/eboutic/templates/eboutic/eboutic_main.jinja
+++ b/eboutic/templates/eboutic/eboutic_main.jinja
@ -12,7 +12,6 @@
    {# This script contains the code to perform requests to manipulate the
    user basket without having to reload the page #}
  <script src="{{ static('eboutic/js/eboutic.js') }}"></script>
-  <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
 {% endblock %}

 {% block additional_css %}
@ -30,7 +29,6 @@
            {% for error in errors %}
              <p style="margin: 0">{{ error }}</p>
            {% endfor %}
-            {% trans %}Your basket has been cleaned accordingly to those errors.{% endtrans %}
          </div>
        </div>
      {% endif %}
@ -104,8 +102,12 @@
              </div>
              <div class="product-group">
                {% for p in items %}
-                  <button id="{{ p.id }}" class="product-button"
-                          @click='add_from_catalog({{ p.id }}, {{ p.name|tojson }}, {{ p.selling_price }})'>
+                  <button
+                    id="{{ p.id }}"
+                    class="product-button"
+                    :class="{selected: items.some((i) => i.id === {{ p.id }})}"
+                    @click='add_from_catalog({{ p.id }}, {{ p.name|tojson }}, {{ p.selling_price }})'
+                  >
                    {% if p.icon %}
                      <img class="product-image" src="{{ p.icon.url }}"
                           alt="image de {{ p.name }}">
--- a/eboutic/templates/eboutic/eboutic_makecommand.jinja
+++ b/eboutic/templates/eboutic/eboutic_makecommand.jinja
@ -10,7 +10,6 @@

 {% block additional_js %}
  <script src="{{ static('eboutic/js/makecommand.js') }}" defer></script>
-  <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
 {% endblock %}

 {% block content %}
@ -38,7 +37,7 @@
        </table>

        <p>
-          <strong>{% trans %}Basket amount: {% endtrans %}{{ "%0.2f"|format(basket.get_total()) }} €</strong>
+          <strong>{% trans %}Basket amount: {% endtrans %}{{ "%0.2f"|format(basket.total) }} €</strong>

          {% if customer_amount != None %}
            <br>
@ -48,49 +47,54 @@
            {% if not basket.contains_refilling_item %}
              <br>
              {% trans %}Remaining account amount: {% endtrans %}
-              <strong>{{ "%0.2f"|format(customer_amount|float - basket.get_total()) }} €</strong>
+              <strong>{{ "%0.2f"|format(customer_amount|float - basket.total) }} €</strong>
            {% endif %}
          {% endif %}
        </p>
        <br>
        {% if settings.SITH_EBOUTIC_CB_ENABLED %}
-          <div class="collapse" :class="{'shadow': collapsed}" x-data="{collapsed: false}" x-cloak>
+          <div
+            class="collapse"
+            :class="{'shadow': collapsed}"
+            x-data="{collapsed: !billing_info_exist}"
+            x-cloak
+          >
            <div class="collapse-header clickable" @click="collapsed = !collapsed">
              <span class="collapse-header-text">
-                {% trans %}Edit billing information{% endtrans %}
+                {% trans %}Billing information{% endtrans %}
              </span>
              <span class="collapse-header-icon" :class="{'reverse': collapsed}">
                <i class="fa fa-caret-down"></i>
              </span>
            </div>
-            <form class="collapse-body" id="billing_info_form" method="post"
-                  x-show="collapsed" x-data="billing_infos"
-                  x-transition.scale.origin.top
-                  @submit.prevent="send_form()">
+            <form
+              class="collapse-body"
+              id="billing_info_form"
+              x-data="billing_infos"
+              x-show="collapsed"
+              x-transition.scale.origin.top
+              @submit.prevent="await send_form()"
+            >
              {% csrf_token %}
              {{ billing_form }}
              <br>
              <br>
-              <div x-show="errors.length > 0" class="alert alert-red" x-transition>
-                <div class="alert-main">
-                  <template x-for="error in errors">
-                    <div x-text="error.field + ' : ' + error.messages.join(', ')"></div>
-                  </template>
-                </div>
-                <div class="clickable" @click="errors = []">
+              <div
+                x-show="[BillingInfoReqState.SUCCESS, BillingInfoReqState.FAILURE].includes(req_state)"
+                class="alert"
+                :class="'alert-' + get_alert_color()"
+                x-transition
+              >
+                <div class="alert-main" x-text="get_alert_message()"></div>
+                <div class="clickable" @click="req_state = null">
                  <i class="fa fa-close"></i>
                </div>
              </div>
-              <div x-show="successful" class="alert alert-green" x-transition>
-                <div class="alert-main">
-                  Informations de facturation enregistrées
-                </div>
-                <div class="clickable" @click="successful = false">
-                  <i class="fa fa-close"></i>
-                </div>
-              </div>
-              <input type="submit" class="btn btn-blue clickable"
-                     value="{% trans %}Validate{% endtrans %}">
+              <input
+                type="submit" class="btn btn-blue clickable"
+                value="{% trans %}Validate{% endtrans %}"
+                :disabled="req_state === BillingInfoReqState.SENDING"
+              >
            </form>
          </div>
          <br>
@ -103,16 +107,21 @@
            </p>
          {% endif %}
          <form method="post" action="{{ settings.SITH_EBOUTIC_ET_URL }}" name="bank-pay-form">
-            <template x-data x-for="input in $store.billing_inputs.data">
-              <input type="hidden" :name="input['key']" :value="input['value']">
+            <template x-data x-for="[key, value] in Object.entries($store.billing_inputs.data)">
+              <input type="hidden" :name="key" :value="value">
            </template>
-            <input type="submit" id="bank-submit-button"
-                   {% if must_fill_billing_infos %}disabled="disabled"{% endif %}
-                   value="{% trans %}Pay with credit card{% endtrans %}"/>
+            <input
+              type="submit"
+              id="bank-submit-button"
+              {% if must_fill_billing_infos %}disabled="disabled"{% endif %}
+              value="{% trans %}Pay with credit card{% endtrans %}"
+            />
          </form>
        {% endif %}
        {% if basket.contains_refilling_item %}
          <p>{% trans %}AE account payment disabled because your basket contains refilling items.{% endtrans %}</p>
+        {% elif basket.total > user.account_balance %}
+          <p>{% trans %}AE account payment disabled because you do not have enough money remaining.{% endtrans %}</p>
        {% else %}
          <form method="post" action="{{ url('eboutic:pay_with_sith') }}" name="sith-pay-form">
            {% csrf_token %}
@ -125,15 +134,16 @@

 {% block script %}
  <script>
-    const create_billing_info_url = '{{ url("counter:create_billing_info", user_id=request.user.id) }}'
-    const edit_billing_info_url = '{{ url("counter:edit_billing_info", user_id=request.user.id) }}';
-    const et_data_url = '{{ url("eboutic:et_data") }}'
-    let billing_info_exist = {{ "true" if billing_infos else "false" }}
+    const billing_info_url = '{{ url("api:put_billing_info", user_id=request.user.id) }}';
+    const et_data_url = '{{ url("api:etransaction_data") }}';
+    const billing_info_exist = {{ "true" if billing_infos else "false" }};
+    const billing_info_success_message = "{% trans %}Billing info registration success{% endtrans %}";
+    const billing_info_failure_message = "{% trans %}Billing info registration failure{% endtrans %}";

    {% if billing_infos %}
-      const et_data = {{ billing_infos|tojson }}
+      const et_data = {{ billing_infos|safe }}
    {% else %}
-      const et_data = '{"data": []}'
+      const et_data = {}
    {% endif %}
  </script>
  {{ super() }}
--- a/eboutic/tests/tests.py
+++ b/eboutic/tests/tests.py
@ -36,7 +36,7 @@ from django.urls import reverse

 from core.models import User
 from counter.models import Counter, Customer, Product, Selling
-from eboutic.models import Basket
+from eboutic.models import Basket, BasketItem


 class TestEboutic(TestCase):
@ -60,14 +60,14 @@ class TestEboutic(TestCase):
        basket = Basket.objects.create(user=user)
        session["basket_id"] = basket.id
        session.save()
-        basket.add_product(self.barbar, 3)
-        basket.add_product(self.cotis)
+        BasketItem.from_product(self.barbar, 3, basket).save()
+        BasketItem.from_product(self.cotis, 1, basket).save()
        return basket

    def generate_bank_valid_answer(self) -> str:
        basket = Basket.from_session(self.client.session)
        basket_id = basket.id
-        amount = int(basket.get_total() * 100)
+        amount = int(basket.total * 100)
        query = f"Amount={amount}&BasketID={basket_id}&Auto=42&Error=00000"
        with open("./eboutic/tests/private_key.pem", "br") as f:
            PRIVKEY = f.read()
@ -88,7 +88,7 @@ class TestEboutic(TestCase):
        self.subscriber.customer.amount = 100  # give money before test
        self.subscriber.customer.save()
        basket = self.get_busy_basket(self.subscriber)
-        amount = basket.get_total()
+        amount = basket.total
        response = self.client.post(reverse("eboutic:pay_with_sith"))
        self.assertRedirects(response, "/eboutic/pay/success/")
        new_balance = Customer.objects.get(user=self.subscriber).amount
@ -99,7 +99,7 @@ class TestEboutic(TestCase):
    def test_buy_with_sith_account_no_money(self):
        self.client.force_login(self.subscriber)
        basket = self.get_busy_basket(self.subscriber)
-        initial = basket.get_total() - 1  # just not enough to complete the sale
+        initial = basket.total - 1  # just not enough to complete the sale
        self.subscriber.customer.amount = initial
        self.subscriber.customer.save()
        response = self.client.post(reverse("eboutic:pay_with_sith"))
@ -135,7 +135,7 @@ class TestEboutic(TestCase):
        cotis = basket.items.filter(product_name="Cotis 2 semestres").first()
        assert cotis is not None
        assert cotis.quantity == 1
-        assert basket.get_total() == 3 * 1.7 + 28
+        assert basket.total == 3 * 1.7 + 28

    def test_submit_empty_basket(self):
        self.client.force_login(self.subscriber)
@ -151,7 +151,7 @@ class TestEboutic(TestCase):
        ]"""
        response = self.client.get(reverse("eboutic:command"))
        cookie = self.client.cookies["basket_items"].OutputString()
-        assert 'basket_items=""' in cookie
+        assert 'basket_items="[]"' in cookie
        assert "Path=/eboutic" in cookie
        self.assertRedirects(response, "/eboutic/")

--- a/eboutic/views.py
+++ b/eboutic/views.py
@ -16,7 +16,6 @@
 import base64
 import json
 from datetime import datetime
-from urllib.parse import unquote

 import sentry_sdk
 from cryptography.exceptions import InvalidSignature
@ -26,6 +25,7 @@ from cryptography.hazmat.primitives.hashes import SHA1
 from cryptography.hazmat.primitives.serialization import load_pem_public_key
 from django.conf import settings
 from django.contrib.auth.decorators import login_required
+from django.contrib.auth.mixins import LoginRequiredMixin
 from django.core.exceptions import SuspiciousOperation
 from django.db import DatabaseError, transaction
 from django.http import HttpRequest, HttpResponse
@ -37,7 +37,14 @@ from django.views.generic import TemplateView, View
 from counter.forms import BillingInfoForm
 from counter.models import Counter, Customer, Product
 from eboutic.forms import BasketForm
-from eboutic.models import Basket, Invoice, InvoiceItem, get_eboutic_products
+from eboutic.models import (
+    Basket,
+    BasketItem,
+    Invoice,
+    InvoiceItem,
+    get_eboutic_products,
+)
+from eboutic.schemas import PurchaseItemList, PurchaseItemSchema


@login_required
@ -75,43 +82,46 @@ def payment_result(request, result: str) -> HttpResponse:
    return render(request, "eboutic/eboutic_payment_result.jinja", context)


-class EbouticCommand(TemplateView):
+class EbouticCommand(LoginRequiredMixin, TemplateView):
    template_name = "eboutic/eboutic_makecommand.jinja"
+    basket: Basket

    @method_decorator(login_required)
    def post(self, request, *args, **kwargs):
        return redirect("eboutic:main")

-    @method_decorator(login_required)
    def get(self, request: HttpRequest, *args, **kwargs):
        form = BasketForm(request)
        if not form.is_valid():
-            request.session["errors"] = form.get_error_messages()
+            request.session["errors"] = form.errors
            request.session.modified = True
            res = redirect("eboutic:main")
-            res.set_cookie("basket_items", form.get_cleaned_cookie(), path="/eboutic")
+            res.set_cookie(
+                "basket_items",
+                PurchaseItemList.dump_json(form.cleaned_data, by_alias=True).decode(),
+                path="/eboutic",
+            )
            return res
-
        basket = Basket.from_session(request.session)
        if basket is not None:
-            basket.clear()
+            basket.items.all().delete()
        else:
            basket = Basket.objects.create(user=request.user)
            request.session["basket_id"] = basket.id
            request.session.modified = True

-        items = json.loads(unquote(request.COOKIES["basket_items"]))
-        items.sort(key=lambda item: item["id"])
-        ids = [item["id"] for item in items]
-        quantities = [item["quantity"] for item in items]
-        products = Product.objects.filter(id__in=ids)
-        for product, qty in zip(products, quantities):
-            basket.add_product(product, qty)
-        kwargs["basket"] = basket
-        return self.render_to_response(self.get_context_data(**kwargs))
+        items: list[PurchaseItemSchema] = form.cleaned_data
+        pks = {item.product_id for item in items}
+        products = {p.pk: p for p in Product.objects.filter(pk__in=pks)}
+        db_items = []
+        for pk in pks:
+            quantity = sum(i.quantity for i in items if i.product_id == pk)
+            db_items.append(BasketItem.from_product(products[pk], quantity, basket))
+        BasketItem.objects.bulk_create(db_items)
+        self.basket = basket
+        return super().get(request)

    def get_context_data(self, **kwargs):
-        # basket is already in kwargs when the method is called
        default_billing_info = None
        if hasattr(self.request.user, "customer"):
            customer = self.request.user.customer
@ -124,9 +134,8 @@ class EbouticCommand(TemplateView):
        if not kwargs["must_fill_billing_infos"]:
            # the user has already filled its billing_infos, thus we can
            # get it without expecting an error
-            data = kwargs["basket"].get_e_transaction_data()
-            data = {"data": [{"key": key, "value": val} for key, val in data]}
-            kwargs["billing_infos"] = json.dumps(data)
+            kwargs["billing_infos"] = dict(self.basket.get_e_transaction_data())
+        kwargs["basket"] = self.basket
        kwargs["billing_form"] = BillingInfoForm(instance=default_billing_info)
        return kwargs

@ -149,29 +158,32 @@ def pay_with_sith(request):
    refilling = settings.SITH_COUNTER_PRODUCTTYPE_REFILLING
    if basket is None or basket.items.filter(type_id=refilling).exists():
        return redirect("eboutic:main")
-    c = Customer.objects.filter(user__id=basket.user.id).first()
+    c = Customer.objects.filter(user__id=basket.user_id).first()
    if c is None:
        return redirect("eboutic:main")
-    if c.amount < basket.get_total():
+    if c.amount < basket.total:
+        res = redirect("eboutic:payment_result", "failure")
+        res.delete_cookie("basket_items", "/eboutic")
+        return res
+    eboutic = Counter.objects.get(type="EBOUTIC")
+    sales = basket.generate_sales(eboutic, c.user, "SITH_ACCOUNT")
+    try:
+        with transaction.atomic():
+            # Selling.save has some important business logic in it.
+            # Do not bulk_create this
+            for sale in sales:
+                sale.save()
+            basket.delete()
+        request.session.pop("basket_id", None)
+        res = redirect("eboutic:payment_result", "success")
+    except DatabaseError as e:
+        with sentry_sdk.push_scope() as scope:
+            scope.user = {"username": request.user.username}
+            scope.set_extra("someVariable", e.__repr__())
+            sentry_sdk.capture_message(
+                f"Erreur le {datetime.now()} dans eboutic.pay_with_sith"
+            )
        res = redirect("eboutic:payment_result", "failure")
-    else:
-        eboutic = Counter.objects.filter(type="EBOUTIC").first()
-        sales = basket.generate_sales(eboutic, c.user, "SITH_ACCOUNT")
-        try:
-            with transaction.atomic():
-                for sale in sales:
-                    sale.save()
-                basket.delete()
-            request.session.pop("basket_id", None)
-            res = redirect("eboutic:payment_result", "success")
-        except DatabaseError as e:
-            with sentry_sdk.push_scope() as scope:
-                scope.user = {"username": request.user.username}
-                scope.set_extra("someVariable", e.__repr__())
-                sentry_sdk.capture_message(
-                    f"Erreur le {datetime.now()} dans eboutic.pay_with_sith"
-                )
-            res = redirect("eboutic:payment_result", "failure")
    res.delete_cookie("basket_items", "/eboutic")
    return res

@ -205,7 +217,7 @@ class EtransactionAutoAnswer(View):
                    )
                    if b is None:
                        raise SuspiciousOperation("Basket does not exists")
-                    if int(b.get_total() * 100) != int(request.GET["Amount"]):
+                    if int(b.total * 100) != int(request.GET["Amount"]):
                        raise SuspiciousOperation(
                            "Basket total and amount do not match"
                        )
--- a/forum/views.py
+++ b/forum/views.py
@ -21,6 +21,7 @@
 # Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 #
+import logging
 import math
 from functools import partial

@ -424,7 +425,7 @@ class ForumMessageCreateView(CanCreateMixin, CreateView):
            )
            init["message"] += "\n\n"
        except Exception as e:
-            print(repr(e))
+            logging.error(e)
        return init

    def form_valid(self, form):
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
--- a/mkdocs.yml
+++ b/mkdocs.yml
@ -61,6 +61,7 @@ nav:
    - Archives: explanation/archives.md
  - Tutoriels:
    - Installer le projet: tutorial/install.md
+    - Installer le projet (avancé): tutorial/install-advanced.md
    - Configurer son éditeur: tutorial/devtools.md
    - Structure du projet: tutorial/structure.md
    - Gestion des permissions: tutorial/perms.md
@ -80,6 +81,9 @@ nav:
    - accounting:
      - reference/accounting/models.md
      - reference/accounting/views.md
+    - antispam:
+      - reference/antispam/models.md
+      - reference/antispam/forms.md
    - club:
      - reference/club/models.md
      - reference/club/views.md
--- a/pedagogy/migrations/0002_auto_20190827_2251.py
+++ b/pedagogy/migrations/0002_auto_20190827_2251.py
@ -36,11 +36,7 @@ def remove_multiples_comments_from_same_user(apps, schema_editor):
                .order_by("-publish_date")
                .first()
            )
-            for comment in (
-                user.uv_comments.filter(uv__id=uv["uv"]).exclude(pk=last.pk).all()
-            ):
-                print("removing : %s" % (comment,))
-                comment.delete()
+            user.uv_comments.filter(uv__id=uv["uv"]).exclude(pk=last.pk).delete()


 class Migration(migrations.Migration):
--- a/pedagogy/templates/pedagogy/guide.jinja
+++ b/pedagogy/templates/pedagogy/guide.jinja
@ -4,10 +4,6 @@
  {% trans %}UV Guide{% endtrans %}
 {% endblock %}

-{% block additional_js %}
-  <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
-{% endblock %}
-
 {% block additional_css %}
  <link rel="stylesheet" href="{{ scss('pedagogy/css/pedagogy.scss') }}">
  <link rel="stylesheet" href="{{ scss('core/pagination.scss') }}">
@ -100,7 +96,7 @@
          {% endif %}
        </tr>
      </thead>
-      <tbody id="dynamic_view_content">
+      <tbody id="dynamic_view_content" :aria-busy="loading">
        <template x-for="uv in uvs.results" :key="uv.id">
          <tr @click="window.location.href = `/pedagogy/uv/${uv.id}`" class="clickable">
            <td><a :href="`/pedagogy/uv/${uv.id}`" x-text="uv.code"></a></td>
@ -130,22 +126,6 @@
    </nav>
  </div>
  <script>
-    const initialUrlParams = new URLSearchParams(window.location.search);
-
-    function update_query_string(key, value) {
-      const url = new URL(window.location.href);
-      if (!value) {
-            {# If the value is null, undefined or empty => delete it #}
-        url.searchParams.delete(key)
-      } else if (Array.isArray(value)) {
-        url.searchParams.delete(key)
-        value.forEach((v) => url.searchParams.append(key, v))
-      } else {
-        url.searchParams.set(key, value);
-      }
-      history.pushState(null, document.title, url.toString());
-    }
-
    {#
    How does this work :

@ -160,6 +140,7 @@
    document.addEventListener("alpine:init", () => {
      Alpine.data("uv_search", () => ({
        uvs: [],
+        loading: false,
        page: parseInt(initialUrlParams.get("page")) || page_default,
        page_size: parseInt(initialUrlParams.get("page_size")) || page_size_default,
        search: initialUrlParams.get("search") || "",
@ -191,8 +172,10 @@
        },

        async fetch_data() {
+          this.loading = true;
          const url = "{{ url("api:fetch_uvs") }}" + window.location.search;
          this.uvs = await (await fetch(url)).json();
+          this.loading = false;
        },

        max_page() {
--- a/poetry.lock
+++ b/poetry.lock
@ -574,17 +574,17 @@ testing = ["coverage", "geopy (==2)", "pysolr (>=3.7)", "python-dateutil", "requ

 [[package]]
 name = "django-honeypot"
-version = "1.2.0"
+version = "1.2.1"
 description = "Django honeypot field utilities"
 optional = false
 python-versions = "<4.0,>=3.8"
 files = [
-    {file = "django_honeypot-1.2.0-py3-none-any.whl", hash = "sha256:53dd5f8dd96ef1bb7e31b5514c0dc2caae9577e78ebdf03ca4e0f304a7422aba"},
-    {file = "django_honeypot-1.2.0.tar.gz", hash = "sha256:25fca02e786aec26649bd13b37a95c846e09ab3cfc10f28db2f7dfaa77b9b9c6"},
+    {file = "django_honeypot-1.2.1-py3-none-any.whl", hash = "sha256:fdabe4ded66b6db25d04af2446de3bf7cb047cb5db097a864c8c97b081ef736f"},
+    {file = "django_honeypot-1.2.1.tar.gz", hash = "sha256:ab5c2aad214d86def2f00f6a79aa14f171db7301ac8712f20dc21a83dd5d6413"},
 ]

 [package.dependencies]
-Django = ">=3.2,<5.1"
+Django = ">=3.2,<5.2"

 [[package]]
 name = "django-jinja"
@ -754,13 +754,13 @@ tests = ["asttokens (>=2.1.0)", "coverage", "coverage-enable-subprocess", "ipyth

 [[package]]
 name = "faker"
-version = "26.0.0"
+version = "26.1.0"
 description = "Faker is a Python package that generates fake data for you."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "Faker-26.0.0-py3-none-any.whl", hash = "sha256:886ee28219be96949cd21ecc96c4c742ee1680e77f687b095202c8def1a08f06"},
-    {file = "Faker-26.0.0.tar.gz", hash = "sha256:0f60978314973de02c00474c2ae899785a42b2cf4f41b7987e93c132a2b8a4a9"},
+    {file = "Faker-26.1.0-py3-none-any.whl", hash = "sha256:e8c5ef795223e945d9166aea3c0ecaf85ac54b4ade2af068d8e3c6524c2c0aa7"},
+    {file = "Faker-26.1.0.tar.gz", hash = "sha256:33921b6fc3b83dd75fd42ec7f47ec87b50c00d3c5380fa7d8a507dab848b8229"},
 ]

 [package.dependencies]
@ -1454,13 +1454,13 @@ ptyprocess = ">=0.5"

 [[package]]
 name = "phonenumbers"
-version = "8.13.40"
+version = "8.13.42"
 description = "Python version of Google's common library for parsing, formatting, storing and validating international phone numbers."
 optional = false
 python-versions = "*"
 files = [
-    {file = "phonenumbers-8.13.40-py2.py3-none-any.whl", hash = "sha256:9582752c20a1da5ec4449f7f97542bf8a793c8e2fec0ab57f767177bb8fc0b1d"},
-    {file = "phonenumbers-8.13.40.tar.gz", hash = "sha256:f137c2848b8e83dd064b71881b65680584417efa202177fd330e2f7ff6c68113"},
+    {file = "phonenumbers-8.13.42-py2.py3-none-any.whl", hash = "sha256:18acc22ee03116d27b26e990f53806a1770a3e05f05e1620bc09ad187f889456"},
+    {file = "phonenumbers-8.13.42.tar.gz", hash = "sha256:7137904f2db3b991701e853174ce8e1cb8f540b8bfdf27617540de04c0b7bed5"},
 ]

 [[package]]
@ -1624,84 +1624,37 @@ files = [
 wcwidth = "*"

 [[package]]
-name = "psycopg2-binary"
-version = "2.9.9"
-description = "psycopg2 - Python-PostgreSQL Database Adapter"
+name = "psycopg"
+version = "3.2.1"
+description = "PostgreSQL database adapter for Python"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.8"
 files = [
-    {file = "psycopg2-binary-2.9.9.tar.gz", hash = "sha256:7f01846810177d829c7692f1f5ada8096762d9172af1b1a28d4ab5b77c923c1c"},
-    {file = "psycopg2_binary-2.9.9-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:c2470da5418b76232f02a2fcd2229537bb2d5a7096674ce61859c3229f2eb202"},
-    {file = "psycopg2_binary-2.9.9-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:c6af2a6d4b7ee9615cbb162b0738f6e1fd1f5c3eda7e5da17861eacf4c717ea7"},
-    {file = "psycopg2_binary-2.9.9-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:75723c3c0fbbf34350b46a3199eb50638ab22a0228f93fb472ef4d9becc2382b"},
-    {file = "psycopg2_binary-2.9.9-cp310-cp310-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:83791a65b51ad6ee6cf0845634859d69a038ea9b03d7b26e703f94c7e93dbcf9"},
-    {file = "psycopg2_binary-2.9.9-cp310-cp310-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:0ef4854e82c09e84cc63084a9e4ccd6d9b154f1dbdd283efb92ecd0b5e2b8c84"},
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-    {file = "psycopg2_binary-2.9.9-cp39-cp39-win32.whl", hash = "sha256:9dba73be7305b399924709b91682299794887cbbd88e38226ed9f6712eabee90"},
-    {file = "psycopg2_binary-2.9.9-cp39-cp39-win_amd64.whl", hash = "sha256:f7ae5d65ccfbebdfa761585228eb4d0df3a8b15cfb53bd953e713e09fbb12957"},
+    {file = "psycopg-3.2.1-py3-none-any.whl", hash = "sha256:ece385fb413a37db332f97c49208b36cf030ff02b199d7635ed2fbd378724175"},
+    {file = "psycopg-3.2.1.tar.gz", hash = "sha256:dc8da6dc8729dacacda3cc2f17d2c9397a70a66cf0d2b69c91065d60d5f00cb7"},
+]
+
+[package.dependencies]
+psycopg-c = {version = "3.2.1", optional = true, markers = "implementation_name != \"pypy\" and extra == \"c\""}
+typing-extensions = ">=4.4"
+tzdata = {version = "*", markers = "sys_platform == \"win32\""}
+
+[package.extras]
+binary = ["psycopg-binary (==3.2.1)"]
+c = ["psycopg-c (==3.2.1)"]
+dev = ["ast-comments (>=1.1.2)", "black (>=24.1.0)", "codespell (>=2.2)", "dnspython (>=2.1)", "flake8 (>=4.0)", "mypy (>=1.6)", "types-setuptools (>=57.4)", "wheel (>=0.37)"]
+docs = ["Sphinx (>=5.0)", "furo (==2022.6.21)", "sphinx-autobuild (>=2021.3.14)", "sphinx-autodoc-typehints (>=1.12)"]
+pool = ["psycopg-pool"]
+test = ["anyio (>=4.0)", "mypy (>=1.6)", "pproxy (>=2.7)", "pytest (>=6.2.5)", "pytest-cov (>=3.0)", "pytest-randomly (>=3.5)"]
+
+[[package]]
+name = "psycopg-c"
+version = "3.2.1"
+description = "PostgreSQL database adapter for Python -- C optimisation distribution"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "psycopg_c-3.2.1.tar.gz", hash = "sha256:2d09943cc8a855c42c1e23b4298957b7ce8f27bf3683258c52fd139f601f7cda"},
 ]

 [[package]]
@ -2228,13 +2181,13 @@ files = [

 [[package]]
 name = "sentry-sdk"
-version = "2.11.0"
+version = "2.12.0"
 description = "Python client for Sentry (https://sentry.io)"
 optional = false
 python-versions = ">=3.6"
 files = [
-    {file = "sentry_sdk-2.11.0-py2.py3-none-any.whl", hash = "sha256:d964710e2dbe015d9dc4ff0ad16225d68c3b36936b742a6fe0504565b760a3b7"},
-    {file = "sentry_sdk-2.11.0.tar.gz", hash = "sha256:4ca16e9f5c7c6bc2fb2d5c956219f4926b148e511fffdbbde711dc94f1e0468f"},
+    {file = "sentry_sdk-2.12.0-py2.py3-none-any.whl", hash = "sha256:7a8d5163d2ba5c5f4464628c6b68f85e86972f7c636acc78aed45c61b98b7a5e"},
+    {file = "sentry_sdk-2.12.0.tar.gz", hash = "sha256:8763840497b817d44c49b3fe3f5f7388d083f2337ffedf008b2cdb63b5c86dc6"},
 ]

 [package.dependencies]
@ -2264,7 +2217,7 @@ langchain = ["langchain (>=0.0.210)"]
 loguru = ["loguru (>=0.5)"]
 openai = ["openai (>=1.0.0)", "tiktoken (>=0.3.0)"]
 opentelemetry = ["opentelemetry-distro (>=0.35b0)"]
-opentelemetry-experimental = ["opentelemetry-instrumentation-aio-pika (==0.46b0)", "opentelemetry-instrumentation-aiohttp-client (==0.46b0)", "opentelemetry-instrumentation-aiopg (==0.46b0)", "opentelemetry-instrumentation-asgi (==0.46b0)", "opentelemetry-instrumentation-asyncio (==0.46b0)", "opentelemetry-instrumentation-asyncpg (==0.46b0)", "opentelemetry-instrumentation-aws-lambda (==0.46b0)", "opentelemetry-instrumentation-boto (==0.46b0)", "opentelemetry-instrumentation-boto3sqs (==0.46b0)", "opentelemetry-instrumentation-botocore (==0.46b0)", "opentelemetry-instrumentation-cassandra (==0.46b0)", "opentelemetry-instrumentation-celery (==0.46b0)", "opentelemetry-instrumentation-confluent-kafka (==0.46b0)", "opentelemetry-instrumentation-dbapi (==0.46b0)", "opentelemetry-instrumentation-django (==0.46b0)", "opentelemetry-instrumentation-elasticsearch (==0.46b0)", "opentelemetry-instrumentation-falcon (==0.46b0)", "opentelemetry-instrumentation-fastapi (==0.46b0)", "opentelemetry-instrumentation-flask (==0.46b0)", "opentelemetry-instrumentation-grpc (==0.46b0)", "opentelemetry-instrumentation-httpx (==0.46b0)", "opentelemetry-instrumentation-jinja2 (==0.46b0)", "opentelemetry-instrumentation-kafka-python (==0.46b0)", "opentelemetry-instrumentation-logging (==0.46b0)", "opentelemetry-instrumentation-mysql (==0.46b0)", "opentelemetry-instrumentation-mysqlclient (==0.46b0)", "opentelemetry-instrumentation-pika (==0.46b0)", "opentelemetry-instrumentation-psycopg (==0.46b0)", "opentelemetry-instrumentation-psycopg2 (==0.46b0)", "opentelemetry-instrumentation-pymemcache (==0.46b0)", "opentelemetry-instrumentation-pymongo (==0.46b0)", "opentelemetry-instrumentation-pymysql (==0.46b0)", "opentelemetry-instrumentation-pyramid (==0.46b0)", "opentelemetry-instrumentation-redis (==0.46b0)", "opentelemetry-instrumentation-remoulade (==0.46b0)", "opentelemetry-instrumentation-requests (==0.46b0)", "opentelemetry-instrumentation-sklearn (==0.46b0)", "opentelemetry-instrumentation-sqlalchemy (==0.46b0)", "opentelemetry-instrumentation-sqlite3 (==0.46b0)", "opentelemetry-instrumentation-starlette (==0.46b0)", "opentelemetry-instrumentation-system-metrics (==0.46b0)", "opentelemetry-instrumentation-threading (==0.46b0)", "opentelemetry-instrumentation-tornado (==0.46b0)", "opentelemetry-instrumentation-tortoiseorm (==0.46b0)", "opentelemetry-instrumentation-urllib (==0.46b0)", "opentelemetry-instrumentation-urllib3 (==0.46b0)", "opentelemetry-instrumentation-wsgi (==0.46b0)"]
+opentelemetry-experimental = ["opentelemetry-distro"]
 pure-eval = ["asttokens", "executing", "pure-eval"]
 pymongo = ["pymongo (>=3.1)"]
 pyspark = ["pyspark (>=2.4.4)"]
@ -2632,4 +2585,4 @@ filelock = ">=3.4"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "a9573a584420b00b0bd5bb85a0fb2daedb365bd1ff604b94ec23c187bc4dd991"
+content-hash = "30107b3b01a30323c162e09f556fd56ca8e2c338e875d7ea87583a25195645a7"
--- a/pyproject.toml
+++ b/pyproject.toml
@ -29,7 +29,7 @@ mistune = "^3.0.2"
 django-jinja = "^2.11"
 cryptography = "^43.0.0"
 django-phonenumber-field = "^8.0.0"
-phonenumbers = "^8.12"
+phonenumbers = "^8.13"
 django-ajax-selects = "^2.2.1"
 reportlab = "^4.2"
 django-haystack = "^3.2.1"
@ -38,18 +38,21 @@ libsass = "^0.23"
 django-ordered-model = "^3.7"
 django-simple-captcha = "^0.6.0"
 python-dateutil = "^2.8.2"
-sentry-sdk = "^2.11.0"
+sentry-sdk = "^2.12.0"
 pygraphviz = "^1.1"
 Jinja2 = "^3.1"
 django-countries = "^7.5.1"
 dict2xml = "^1.7.3"
 Sphinx = "^5" # Needed for building xapian
 tomli = "^2.0.1"
-django-honeypot = "^1.2.0"
+django-honeypot = "^1.2.1"

 [tool.poetry.group.prod.dependencies]
 # deps used in prod, but unnecessary for development
-psycopg2-binary = "^2.9"
+
+# The C extra triggers compilation against sytem libs during install.
+# Removing it would switch psycopg to a slower full-python implementation
+psycopg = {extras = ["c"], version = "^3.2.1"}
 redis = {extras = ["hiredis"], version = "^5.0.8"}

 [tool.poetry.group.prod]
@ -62,7 +65,7 @@ ipython = "^8.26.0"
 pre-commit = "^3.8.0"
 ruff = "^0.5.5" # Version used in pipeline is controlled by pre-commit hooks in .pre-commit.config.yaml
 djhtml = "^3.0.6"
-faker = "^26.0.0"
+faker = "^26.1.0"

 [tool.poetry.group.tests.dependencies]
 # deps used for testing purposes
@ -100,6 +103,7 @@ select = [
 	"FBT",  # boolean trap
    "UP008",  # Use super() instead of super(__class__, self)
    "UP009",  # utf-8 encoding declaration is unnecessary
+	"T2",  # print statements
 ]

 ignore = [
--- a/rootplace/management/commands/delete_all_forum_user_messages.py
+++ b/rootplace/management/commands/delete_all_forum_user_messages.py
@ -40,7 +40,7 @@ class Command(BaseCommand):
        user = User.objects.filter(id=options["user_id"]).first()

        if user is None:
-            print("User with ID %s not found" % (options["user_id"],))
+            self.stderr.write("User with ID %s not found" % (options["user_id"],))
            exit(1)

        confirm = input(
@ -49,7 +49,7 @@ class Command(BaseCommand):
        )

        if not confirm.lower().startswith("y"):
-            print("Operation aborted")
+            self.stderr.write("Operation aborted")
            exit(1)

        delete_all_forum_user_messages(user, User.objects.get(id=0), verbose=True)
--- a/rootplace/views.py
+++ b/rootplace/views.py
@ -21,6 +21,7 @@
 # Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 #
+import logging

 from ajax_select.fields import AutoCompleteSelectField
 from django import forms
@ -146,7 +147,7 @@ def delete_all_forum_user_messages(user, moderator, *, verbose=False):
            continue

        if verbose:
-            print(message)
+            logging.getLogger("django").info(message)
        ForumMessageMeta(message=message, user=moderator, action="DELETE").save()


--- a/sas/api.py
+++ b/sas/api.py
@ -1,9 +1,11 @@
 from django.conf import settings
 from django.db.models import F
 from ninja import Query
-from ninja_extra import ControllerBase, api_controller, route
+from ninja_extra import ControllerBase, api_controller, paginate, route
 from ninja_extra.exceptions import PermissionDenied
+from ninja_extra.pagination import PageNumberPaginationExtra
 from ninja_extra.permissions import IsAuthenticated
+from ninja_extra.schemas import PaginatedResponseSchema
 from pydantic import NonNegativeInt

 from core.models import User
@ -15,10 +17,11 @@ from sas.schemas import PictureFilterSchema, PictureSchema
 class PicturesController(ControllerBase):
    @route.get(
        "",
-        response=list[PictureSchema],
+        response=PaginatedResponseSchema[PictureSchema],
        permissions=[IsAuthenticated],
        url_name="pictures",
    )
+    @paginate(PageNumberPaginationExtra, page_size=100)
    def fetch_pictures(self, filters: Query[PictureFilterSchema]):
        """Find pictures viewable by the user corresponding to the given filters.

@ -38,23 +41,12 @@ class PicturesController(ControllerBase):
            cf. https://ae.utbm.fr/user/32663/pictures/)
        """
        user: User = self.context.request.user
-        if not user.is_subscribed and filters.users_identified != {user.id}:
-            # User can view any moderated picture if he/she is subscribed.
-            # If not, he/she can view only the one he/she has been identified on
-            raise PermissionDenied
-        pictures = list(
-            filters.filter(
-                Picture.objects.filter(is_moderated=True, asked_for_removal=False)
-            )
+        return (
+            filters.filter(Picture.objects.viewable_by(user))
            .distinct()
-            .order_by("-date")
+            .order_by("-parent__date", "date")
            .annotate(album=F("parent__name"))
        )
-        for picture in pictures:
-            picture.full_size_url = picture.get_download_url()
-            picture.compressed_url = picture.get_download_compressed_url()
-            picture.thumb_url = picture.get_download_thumb_url()
-        return pictures


@api_controller("/sas/relation", tags="User identification on SAS pictures")
--- a/sas/models.py
+++ b/sas/models.py
@ -13,11 +13,14 @@
 #
 #

+from __future__ import annotations
+
 from io import BytesIO

 from django.conf import settings
 from django.core.cache import cache
 from django.db import models
+from django.db.models import Exists, OuterRef
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
@ -27,21 +30,60 @@ from core.models import SithFile, User
 from core.utils import exif_auto_rotate, resize_image


+class SasFile(SithFile):
+    """Proxy model for any file in the SAS.
+
+    May be used to have logic that should be shared by both
+    [Picture][sas.models.Picture] and [Album][sas.models.Album].
+    """
+
+    class Meta:
+        proxy = True
+
+    def can_be_viewed_by(self, user):
+        if user.is_anonymous:
+            return False
+        cache_key = (
+            f"sas:{self._meta.model_name}_viewable_by_{user.id}_in_{self.parent_id}"
+        )
+        viewable: list[int] | None = cache.get(cache_key)
+        if viewable is None:
+            viewable = list(
+                self.__class__.objects.filter(parent_id=self.parent_id)
+                .viewable_by(user)
+                .values_list("pk", flat=True)
+            )
+            cache.set(cache_key, viewable, timeout=10)
+        return self.id in viewable
+
+    def can_be_edited_by(self, user):
+        return user.is_root or user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID)
+
+
+class PictureQuerySet(models.QuerySet):
+    def viewable_by(self, user: User) -> PictureQuerySet:
+        """Filter the pictures that this user can view.
+
+        Warnings:
+            Calling this queryset method may add several additional requests.
+        """
+        if user.is_root or user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID):
+            return self.all()
+        if user.was_subscribed:
+            return self.filter(is_moderated=True)
+        return self.filter(people__user_id=user.id, is_moderated=True)
+
+
 class SASPictureManager(models.Manager):
    def get_queryset(self):
        return super().get_queryset().filter(is_in_sas=True, is_folder=False)


-class SASAlbumManager(models.Manager):
-    def get_queryset(self):
-        return super().get_queryset().filter(is_in_sas=True, is_folder=True)
-
-
-class Picture(SithFile):
+class Picture(SasFile):
    class Meta:
        proxy = True

-    objects = SASPictureManager()
+    objects = SASPictureManager.from_queryset(PictureQuerySet)()

    @property
    def is_vertical(self):
@ -50,29 +92,6 @@ class Picture(SithFile):
            (w, h) = im.size
            return (w / h) < 1

-    def can_be_edited_by(self, user):
-        perm = cache.get("%d_can_edit_pictures" % (user.id), None)
-        if perm is None:
-            perm = user.is_root or user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID)
-
-        cache.set("%d_can_edit_pictures" % (user.id), perm, timeout=4)
-        return perm
-
-    def can_be_viewed_by(self, user):
-        # SAS pictures are visible to old subscribers
-        # Result is cached 4s for this user
-        if user.is_anonymous:
-            return False
-
-        perm = cache.get("%d_can_view_pictures" % (user.id), False)
-        if not perm:
-            perm = user.was_subscribed
-
-        cache.set("%d_can_view_pictures" % (user.id), perm, timeout=4)
-        return (perm and self.is_moderated and self.is_in_sas) or self.can_be_edited_by(
-            user
-        )
-
    def get_download_url(self):
        return reverse("sas:download", kwargs={"picture_id": self.id})

@ -124,48 +143,53 @@ class Picture(SithFile):

    def get_next(self):
        if self.is_moderated:
-            return (
-                self.parent.children.filter(
-                    is_moderated=True,
-                    asked_for_removal=False,
-                    is_folder=False,
-                    id__gt=self.id,
-                )
-                .order_by("id")
-                .first()
+            pictures_qs = self.parent.children.filter(
+                is_moderated=True,
+                asked_for_removal=False,
+                is_folder=False,
+                id__gt=self.id,
            )
        else:
-            return (
-                Picture.objects.filter(id__gt=self.id, is_moderated=False)
-                .order_by("id")
-                .first()
-            )
+            pictures_qs = Picture.objects.filter(id__gt=self.id, is_moderated=False)
+        return pictures_qs.order_by("id").first()

    def get_previous(self):
        if self.is_moderated:
-            return (
-                self.parent.children.filter(
-                    is_moderated=True,
-                    asked_for_removal=False,
-                    is_folder=False,
-                    id__lt=self.id,
-                )
-                .order_by("id")
-                .last()
+            pictures_qs = self.parent.children.filter(
+                is_moderated=True,
+                asked_for_removal=False,
+                is_folder=False,
+                id__lt=self.id,
            )
        else:
-            return (
-                Picture.objects.filter(id__lt=self.id, is_moderated=False)
-                .order_by("-id")
-                .first()
-            )
+            pictures_qs = Picture.objects.filter(id__lt=self.id, is_moderated=False)
+        return pictures_qs.order_by("-id").first()


-class Album(SithFile):
+class AlbumQuerySet(models.QuerySet):
+    def viewable_by(self, user: User) -> PictureQuerySet:
+        """Filter the albums that this user can view.
+
+        Warnings:
+            Calling this queryset method may add several additional requests.
+        """
+        if user.is_root or user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID):
+            return self.all()
+        return self.filter(
+            Exists(Picture.objects.filter(parent_id=OuterRef("pk")).viewable_by(user))
+        )
+
+
+class SASAlbumManager(models.Manager):
+    def get_queryset(self):
+        return super().get_queryset().filter(is_in_sas=True, is_folder=True)
+
+
+class Album(SasFile):
    class Meta:
        proxy = True

-    objects = SASAlbumManager()
+    objects = SASAlbumManager.from_queryset(AlbumQuerySet)()

    @property
    def children_pictures(self):
@ -175,15 +199,6 @@ class Album(SithFile):
    def children_albums(self):
        return Album.objects.filter(parent=self)

-    def can_be_edited_by(self, user):
-        return user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID)
-
-    def can_be_viewed_by(self, user):
-        # file = SithFile.objects.filter(id=self.id).first()
-        return self.can_be_edited_by(user) or (
-            self.is_in_sas and self.is_moderated and user.was_subscribed
-        )  # or user.can_view(file)
-
    def get_absolute_url(self):
        return reverse("sas:album", kwargs={"album_id": self.id})

--- a/sas/schemas.py
+++ b/sas/schemas.py
@ -3,7 +3,6 @@ from datetime import datetime
 from ninja import FilterSchema, ModelSchema, Schema
 from pydantic import Field, NonNegativeInt

-from core.schemas import SimpleUserSchema
 from sas.models import PeoplePictureRelation, Picture


@ -17,14 +16,25 @@ class PictureFilterSchema(FilterSchema):
 class PictureSchema(ModelSchema):
    class Meta:
        model = Picture
-        fields = ["id", "name", "date", "size"]
+        fields = ["id", "name", "date", "size", "is_moderated"]

-    author: SimpleUserSchema = Field(validation_alias="owner")
    full_size_url: str
    compressed_url: str
    thumb_url: str
    album: str

+    @staticmethod
+    def resolve_full_size_url(obj: Picture) -> str:
+        return obj.get_download_url()
+
+    @staticmethod
+    def resolve_compressed_url(obj: Picture) -> str:
+        return obj.get_download_compressed_url()
+
+    @staticmethod
+    def resolve_thumb_url(obj: Picture) -> str:
+        return obj.get_download_thumb_url()
+

 class PictureCreateRelationSchema(Schema):
    user_id: NonNegativeInt
--- a/sas/templates/sas/album.jinja
+++ b/sas/templates/sas/album.jinja
@ -1,20 +1,15 @@
 {% extends "core/base.jinja" %}
-{% from "core/macros.jinja" import paginate %}

 {%- block additional_css -%}
  <link rel="stylesheet" href="{{ scss('sas/album.scss') }}">
+  <link rel="stylesheet" href="{{ scss('core/pagination.scss') }}">
 {%- endblock -%}

 {% block title %}
  {% trans %}SAS{% endtrans %}
 {% endblock %}

-{% macro print_path(file) %}
-  {% if file and file.parent %}
-    {{ print_path(file.parent) }}
-    <a href="{{ url('sas:album', album_id=file.id) }}">{{ file.get_display_name() }}</a> /
-  {% endif %}
-{% endmacro %}
+{% from "sas/macros.jinja" import display_album, print_path %}


 {% block content %}
@ -22,10 +17,10 @@
    <a href="{{ url('sas:main') }}">SAS</a> / {{ print_path(album.parent) }} {{ album.get_display_name() }}
  </code>

-  {% set edit_mode = user.can_edit(album) %}
+  {% set is_sas_admin = user.can_edit(album) %}
  {% set start = timezone.now() %}

-  {% if edit_mode %}
+  {% if is_sas_admin %}
    <form action="" method="post" enctype="multipart/form-data">
      {% csrf_token %}

@ -53,73 +48,63 @@
      {% endif %}
  {% endif %}

-  {% if album.children_albums.count() > 0 %}
+  {% if children_albums|length > 0 %}
    <h4>{% trans %}Albums{% endtrans %}</h4>
    <div class="albums">
-      {% for a in album.children_albums.order_by('-date') %}
-        {% if a.can_be_viewed_by(user) %}
-          <a href="{{ url('sas:album', album_id=a.id) }}">
-            <div
-              class="album{% if not a.is_moderated %} not_moderated{% endif %}"
-              style="background-image: url('{% if a.file %}{{ a.get_download_url() }}{% else %}{{ static('core/img/sas.jpg') }}{% endif %}');"
-            >
-              {% if not a.is_moderated %}
-                <div class="overlay">&nbsp;</div>
-                <div class="text">{% trans %}To be moderated{% endtrans %}</div>
-              {% else %}
-                <div class="text">{{ a.name }}</div>
-              {% endif %}
-            </div>
-            {% if edit_mode %}
-              <input type="checkbox" name="file_list" value="{{ a.id }}">
-            {% endif %}
-          </a>
-        {% endif %}
+      {% for a in children_albums %}
+        {{ display_album(a, is_sas_admin) }}
      {% endfor %}
    </div>

    <br>
  {% endif %}

-  <h4>{% trans %}Pictures{% endtrans %}</h4>
-  {% if pictures | length != 0 %}
-    <div class="photos">
-      {% for p in pictures %}
-        {% if p.can_be_viewed_by(user) %}
-          <a href="{{ url('sas:picture', picture_id=p.id) }}#pict">
-            <div
-              class="photo {% if p.is_vertical %}vertical{% endif %}"
-              style="background-image: url('{{ p.get_download_thumb_url() }}')"
-            >
-              {% if not p.is_moderated %}
-                <div class="overlay">&nbsp;</div>
-                <div class="text">{% trans %}To be moderated{% endtrans %}</div>
-              {% else %}
-                <div class="text">&nbsp;</div>
-              {% endif %}
-            </div>
-            {% if edit_mode %}
-              <input type="checkbox" name="file_list" value="{{ p.id }}">
-            {% endif %}
-          </a>
-        {% endif %}
-      {% endfor %}
+  <div x-data="pictures">
+    <h4>{% trans %}Pictures{% endtrans %}</h4>
+    <div class="photos" :aria-busy="loading">
+      <template x-for="picture in pictures.results">
+        <a :href="`/sas/picture/${picture.id}#pict`">
+          <div class="photo" :style="`background-image: url(${picture.thumb_url})`">
+            <template x-if="!picture.is_moderated">
+              <div class="overlay">&nbsp;</div>
+              <div class="text">{% trans %}To be moderated{% endtrans %}</div>
+            </template>
+            <template x-if="picture.is_moderated">
+              <div class="text">&nbsp;</div>
+            </template>
+          </div>
+          {% if is_sas_admin %}
+            <input type="checkbox" name="file_list" :value="picture.id">
+          {% endif %}
+        </a>
+      </template>
    </div>
-  {% else %}
-    {% trans %}This album does not contain any photos.{% endtrans %}
-  {% endif %}
+    <nav class="pagination" x-show="nb_pages() > 1">
+      {# Adding the prevent here is important, because otherwise,
+      clicking on the pagination buttons could submit the picture management form
+      and reload the page #}
+      <button
+        @click.prevent="page--"
+        :disabled="page <= 1"
+        @keyup.right.window="page = Math.min(nb_pages(), page + 1)"
+      >
+        <i class="fa fa-caret-left"></i>
+      </button>
+      <template x-for="i in nb_pages()">
+        <button x-text="i" @click.prevent="page = i" :class="{active: page === i}"></button>
+      </template>
+      <button
+        @click.prevent="page++"
+        :disabled="page >= nb_pages()"
+        @keyup.left.window="page = Math.max(1, page - 1)"
+      >
+        <i class="fa fa-caret-right"></i>
+      </button>
+    </nav>
+  </div>

-  {% if pictures.has_previous() or pictures.has_next() %}
-    <div class="paginator">
-      {{ paginate(pictures, paginator) }}
-    </div>
-  {% endif %}
-
-  {% if edit_mode %}
+  {% if is_sas_admin %}
    </form>
-  {% endif %}
-
-  {% if user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID) %}
    <form class="add-files" id="upload_form" action="" method="post" enctype="multipart/form-data">
      {% csrf_token %}
      <div class="inputs">
@ -140,6 +125,36 @@
 {% block script %}
  {{ super() }}
  <script>
+    document.addEventListener("alpine:init", () => {
+      Alpine.data("pictures", () => ({
+        pictures: {},
+        page: parseInt(initialUrlParams.get("page")) || 1,
+        loading: false,
+
+        async init() {
+          await this.fetch_pictures();
+          this.$watch("page", () => {
+            update_query_string("page", this.page === 1 ? null : this.page);
+            this.fetch_pictures()
+          });
+        },
+
+        async fetch_pictures() {
+          this.loading=true;
+          const url = "{{ url("api:pictures") }}"
+          +"?album_id={{ album.id }}"
+          +`&page=${this.page}`
+          +"&page_size={{ settings.SITH_SAS_IMAGES_PER_PAGE }}";
+          this.pictures = await (await fetch(url)).json();
+          this.loading=false;
+        },
+
+        nb_pages() {
+          return Math.ceil(this.pictures.count / {{ settings.SITH_SAS_IMAGES_PER_PAGE }});
+        }
+      }))
+    })
+
    $("form#upload_form").submit(function (event) {
      let formData = new FormData($(this)[0]);

--- a/sas/templates/sas/macros.jinja
+++ b/sas/templates/sas/macros.jinja
@ -0,0 +1,32 @@
+{% macro display_album(a, edit_mode) %}
+  <a href="{{ url('sas:album', album_id=a.id) }}">
+    {% if a.file %}
+      {% set img = a.get_download_url() %}
+    {% elif a.children.filter(is_folder=False, is_moderated=True).exists() %}
+      {% set img = a.children.filter(is_folder=False).first().as_picture.get_download_thumb_url() %}
+    {% else %}
+      {% set img = static('core/img/sas.jpg') %}
+    {% endif %}
+    <div
+      class="album{% if not a.is_moderated %} not_moderated{% endif %}"
+      style="background-image: url('{{ img }}');"
+    >
+      {% if not a.is_moderated %}
+        <div class="overlay">&nbsp;</div>
+        <div class="text">{% trans %}To be moderated{% endtrans %}</div>
+      {% else %}
+        <div class="text">{{ a.name }}</div>
+      {% endif %}
+    </div>
+    {% if edit_mode %}
+      <input type="checkbox" name="file_list" value="{{ a.id }}">
+    {% endif %}
+  </a>
+{% endmacro %}
+
+{% macro print_path(file) %}
+  {% if file and file.parent %}
+    {{ print_path(file.parent) }}
+    <a href="{{ url('sas:album', album_id=file.id) }}">{{ file.get_display_name() }}</a> /
+  {% endif %}
+{% endmacro %}
--- a/sas/templates/sas/main.jinja
+++ b/sas/templates/sas/main.jinja
@ -8,31 +8,9 @@
  {% trans %}SAS{% endtrans %}
 {% endblock %}

-{% set edit_mode = user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID) %}
+{% set is_sas_admin = user.is_root or user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID) %}

-{% macro display_album(a, checkbox) %}
-  <a href="{{ url('sas:album', album_id=a.id) }}">
-    {% if a.file %}
-      {% set img = a.get_download_url() %}
-    {% elif a.children.filter(is_folder=False, is_moderated=True).exists() %}
-      {% set img = a.children.filter(is_folder=False).first().as_picture.get_download_thumb_url() %}
-    {% else %}
-      {% set img = static('core/img/sas.jpg') %}
-    {% endif %}
-
-    <div
-      class="album"
-      style="background-image: url('{{ img }}');"
-    >
-      <div class="text">
-        {{ a.name }}
-      </div>
-    </div>
-        {# {% if edit_mode and checkbox %}
-            <input type="checkbox" name="file_list" value="{{ a.id }}">
-        {% endif %} #}
-  </a>
-{% endmacro %}
+{% from "sas/macros.jinja" import display_album %}

 {% block content %}
  <main>
@ -46,22 +24,18 @@

      <div class="albums">
        {% for a in latest %}
-          {{ display_album(a) }}
+          {{ display_album(a, edit_mode=False) }}
        {% endfor %}
      </div>

      <br>

-      {% if edit_mode %}
+      {% if is_sas_admin %}
        <form action="" method="post" enctype="multipart/form-data">
          {% csrf_token %}

          <div class="navbar">
            <h4>{% trans %}All categories{% endtrans %}</h4>
-
-                        {# <div class="toolbar">
-                            <input name="delete" type="submit" value="{% trans %}Delete{% endtrans %}">
-                        </div> #}
          </div>

          {% if clipboard %}
@ -81,11 +55,11 @@

      <div class="albums">
        {% for a in categories %}
-          {{ display_album(a, true) }}
+          {{ display_album(a, edit_mode=False) }}
        {% endfor %}
      </div>

-      {% if edit_mode %}
+      {% if is_sas_admin %}
        </form>

        <br>
--- a/sas/templates/sas/picture.jinja
+++ b/sas/templates/sas/picture.jinja
@ -4,36 +4,11 @@
  <link rel="stylesheet" href="{{ scss('sas/picture.scss') }}">
 {%- endblock -%}

-{%- block additional_js -%}
-  <script src="{{ static('core/js/alpinejs.min.js') }}" defer></script>
-{%- endblock -%}
-
-{% block head %}
-  {{ super() }}
-
-  {% if picture.get_previous() %}
-    <link
-      rel="preload"
-      as="image"
-      href="{{ url("sas:download_compressed", picture_id=picture.get_previous().id) }}"
-    >
-  {% endif %}
-  {% if picture.get_next() %}
-    <link rel="preload" as="image" href="{{ url("sas:download_compressed", picture_id=picture.get_next().id) }}">
-  {% endif %}
-
-{% endblock %}
-
 {% block title %}
  {% trans %}SAS{% endtrans %}
 {% endblock %}

-{% macro print_path(file) %}
-  {% if file and file.parent %}
-    {{ print_path(file.parent) }}
-    <a href="{{ url('sas:album', album_id=file.id) }}">{{ file.get_display_name() }}</a> /
-  {% endif %}
-{% endmacro %}
+{% from "sas/macros.jinja" import print_path %}

 {% block content %}
  <code>
@ -128,16 +103,16 @@
    <div class="subsection">
      <div class="navigation">
        <div id="prev">
-          {% if picture.get_previous() %}
-            <a href="{{ url( 'sas:picture', picture_id=picture.get_previous().id) }}#pict">
-              <div style="background-image: url('{{ picture.get_previous().as_picture.get_download_thumb_url() }}');"></div>
+          {% if previous_pict %}
+            <a href="{{ url( 'sas:picture', picture_id=previous_pict.id) }}#pict">
+              <div style="background-image: url('{{ previous_pict.get_download_thumb_url() }}');"></div>
            </a>
          {% endif %}
        </div>
        <div id="next">
-          {% if picture.get_next() %}
-            <a href="{{ url( 'sas:picture', picture_id=picture.get_next().id) }}#pict">
-              <div style="background-image: url('{{ picture.get_next().as_picture.get_download_thumb_url() }}');"></div>
+          {% if next_pict %}
+            <a href="{{ url( 'sas:picture', picture_id=next_pict.id) }}#pict">
+              <div style="background-image: url('{{ next_pict.get_download_thumb_url() }}');"></div>
            </a>
          {% endif %}
        </div>
@ -145,11 +120,13 @@

      <div class="tags">
        <h5>{% trans %}People{% endtrans %}</h5>
-        <form action="" method="post" enctype="multipart/form-data">
-          {% csrf_token %}
-          {{ form.as_p() }}
-          <input type="submit" value="{% trans %}Go{% endtrans %}" />
-        </form>
+        {% if user.was_subscribed %}
+          <form action="" method="post" enctype="multipart/form-data">
+            {% csrf_token %}
+            {{ form.as_p() }}
+            <input type="submit" value="{% trans %}Go{% endtrans %}" />
+          </form>
+        {% endif %}
        <ul x-data="user_identification">
          <template x-for="item in items" :key="item.id">
            <li>
--- a/sas/tests/test_api.py
+++ b/sas/tests/test_api.py
@ -44,12 +44,8 @@ class TestPictureSearch(TestSas):
        self.client.force_login(self.user_b)
        res = self.client.get(reverse("api:pictures") + f"?album_id={self.album_a.id}")
        assert res.status_code == 200
-        expected = list(
-            self.album_a.children_pictures.order_by("-date").values_list(
-                "id", flat=True
-            )
-        )
-        assert [i["id"] for i in res.json()] == expected
+        expected = list(self.album_a.children_pictures.values_list("id", flat=True))
+        assert [i["id"] for i in res.json()["results"]] == expected

    def test_filter_by_user(self):
        self.client.force_login(self.user_b)
@ -58,11 +54,11 @@ class TestPictureSearch(TestSas):
        )
        assert res.status_code == 200
        expected = list(
-            self.user_a.pictures.order_by("-picture__date").values_list(
-                "picture_id", flat=True
-            )
+            self.user_a.pictures.order_by(
+                "-picture__parent__date", "picture__date"
+            ).values_list("picture_id", flat=True)
        )
-        assert [i["id"] for i in res.json()] == expected
+        assert [i["id"] for i in res.json()["results"]] == expected

    def test_filter_by_multiple_user(self):
        self.client.force_login(self.user_b)
@ -73,38 +69,53 @@ class TestPictureSearch(TestSas):
        assert res.status_code == 200
        expected = list(
            self.user_a.pictures.union(self.user_b.pictures.all())
-            .order_by("-picture__date")
+            .order_by("-picture__parent__date", "picture__date")
            .values_list("picture_id", flat=True)
        )
-        assert [i["id"] for i in res.json()] == expected
+        assert [i["id"] for i in res.json()["results"]] == expected

    def test_not_subscribed_user(self):
-        """Test that a user that is not subscribed can only its own pictures."""
+        """Test that a user that never subscribed can only its own pictures."""
+        self.user_a.subscriptions.all().delete()
        self.client.force_login(self.user_a)
        res = self.client.get(
            reverse("api:pictures") + f"?users_identified={self.user_a.id}"
        )
        assert res.status_code == 200
        expected = list(
-            self.user_a.pictures.order_by("-picture__date").values_list(
-                "picture_id", flat=True
-            )
+            self.user_a.pictures.order_by(
+                "-picture__parent__date", "picture__date"
+            ).values_list("picture_id", flat=True)
        )
-        assert [i["id"] for i in res.json()] == expected
+        assert [i["id"] for i in res.json()["results"]] == expected

-        # trying to access the pictures of someone else
-        res = self.client.get(
-            reverse("api:pictures") + f"?users_identified={self.user_b.id}"
-        )
-        assert res.status_code == 403
-
-        # trying to access the pictures of someone else shouldn't success,
-        # even if mixed with owned pictures
+        # trying to access the pictures of someone else mixed with owned pictures
+        # should return only owned pictures
        res = self.client.get(
            reverse("api:pictures")
            + f"?users_identified={self.user_a.id}&users_identified={self.user_b.id}"
        )
-        assert res.status_code == 403
+        assert res.status_code == 200
+        assert [i["id"] for i in res.json()["results"]] == expected
+
+        # trying to fetch everything should be the same
+        # as fetching its own pictures for a non-subscriber
+        res = self.client.get(reverse("api:pictures"))
+        assert res.status_code == 200
+        assert [i["id"] for i in res.json()["results"]] == expected
+
+        # trying to access the pictures of someone else should return only
+        # the ones where the non-subscribed user is identified too
+        res = self.client.get(
+            reverse("api:pictures") + f"?users_identified={self.user_b.id}"
+        )
+        assert res.status_code == 200
+        expected = list(
+            self.user_b.pictures.intersection(self.user_a.pictures.all())
+            .order_by("-picture__parent__date", "picture__date")
+            .values_list("picture_id", flat=True)
+        )
+        assert [i["id"] for i in res.json()["results"]] == expected


 class TestPictureRelation(TestSas):
--- a/sas/tests/test_model.py
+++ b/sas/tests/test_model.py
@ -0,0 +1,48 @@
+from django.test import TestCase
+from model_bakery import baker, seq
+
+from core.baker_recipes import old_subscriber_user, subscriber_user
+from core.models import User
+from sas.models import Picture
+
+
+class TestPictureQuerySet(TestCase):
+    @classmethod
+    def setUpTestData(cls):
+        Picture.objects.all().delete()
+        cls.pictures = baker.make(
+            Picture,
+            is_moderated=True,
+            is_in_sas=True,
+            is_folder=False,
+            name=seq(""),
+            _quantity=10,
+            _bulk_create=True,
+        )
+        Picture.objects.filter(pk=cls.pictures[0].id).update(is_moderated=False)
+
+    def test_root(self):
+        root = baker.make(User, is_superuser=True)
+        pictures = list(Picture.objects.viewable_by(root))
+        self.assertCountEqual(pictures, self.pictures)
+
+    def test_subscriber(self):
+        subscriber = subscriber_user.make()
+        old_subcriber = old_subscriber_user.make()
+        for user in (subscriber, old_subcriber):
+            pictures = list(Picture.objects.viewable_by(user))
+            self.assertCountEqual(pictures, self.pictures[1:])
+
+    def test_not_subscribed_identified(self):
+        user = baker.make(
+            # This is the guy who asked the feature of making pictures
+            # available for tagged users, even if not subscribed
+            User,
+            first_name="Pierrick",
+            last_name="Dheilly",
+            nick_name="Sahmer",
+        )
+        user.pictures.create(picture=self.pictures[0])
+        user.pictures.create(picture=self.pictures[1])
+        pictures = list(Picture.objects.viewable_by(user))
+        assert pictures == [self.pictures[1]]
--- a/sas/views.py
+++ b/sas/views.py
@ -18,7 +18,6 @@ from ajax_select.fields import AutoCompleteSelectMultipleField
 from django import forms
 from django.conf import settings
 from django.core.exceptions import PermissionDenied
-from django.core.paginator import InvalidPage, Paginator
 from django.http import Http404, HttpResponse
 from django.shortcuts import get_object_or_404, redirect
 from django.urls import reverse, reverse_lazy
@ -120,10 +119,11 @@ class SASMainView(FormView):

    def get_context_data(self, **kwargs):
        kwargs = super().get_context_data(**kwargs)
-        kwargs["categories"] = Album.objects.filter(
-            parent__id=settings.SITH_SAS_ROOT_DIR_ID
-        ).order_by("id")
-        kwargs["latest"] = Album.objects.filter(is_moderated=True).order_by("-id")[:5]
+        albums_qs = Album.objects.viewable_by(self.request.user)
+        kwargs["categories"] = list(
+            albums_qs.filter(parent_id=settings.SITH_SAS_ROOT_DIR_ID).order_by("id")
+        )
+        kwargs["latest"] = list(albums_qs.order_by("-id")[:5])
        return kwargs


@ -181,7 +181,14 @@ class PictureView(CanViewMixin, DetailView, FormMixin):

    def get_context_data(self, **kwargs):
        kwargs = super().get_context_data(**kwargs)
+        pictures_qs = Picture.objects.viewable_by(self.request.user)
        kwargs["form"] = self.form
+        kwargs["next_pict"] = (
+            pictures_qs.filter(id__gt=self.object.id).order_by("id").first()
+        )
+        kwargs["previous_pict"] = (
+            pictures_qs.filter(id__lt=self.object.id).order_by("-id").first()
+        )
        return kwargs

    def get_success_url(self):
@ -222,8 +229,9 @@ class AlbumUploadView(CanViewMixin, DetailView, FormMixin):
                    parent=parent,
                    owner=request.user,
                    files=files,
-                    automodere=request.user.is_in_group(
-                        pk=settings.SITH_GROUP_SAS_ADMIN_ID
+                    automodere=(
+                        request.user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID)
+                        or request.user.is_root
                    ),
                )
                if self.form.is_valid():
@ -236,7 +244,6 @@ class AlbumView(CanViewMixin, DetailView, FormMixin):
    form_class = SASForm
    pk_url_kwarg = "album_id"
    template_name = "sas/album.jinja"
-    paginate_by = settings.SITH_SAS_IMAGES_PER_PAGE

    def dispatch(self, request, *args, **kwargs):
        try:
@ -283,17 +290,15 @@ class AlbumView(CanViewMixin, DetailView, FormMixin):

    def get_context_data(self, **kwargs):
        kwargs = super().get_context_data(**kwargs)
-        kwargs["paginator"] = Paginator(
-            self.object.children_pictures.order_by("id"), self.paginate_by
-        )
-        try:
-            kwargs["pictures"] = kwargs["paginator"].page(self.asked_page)
-        except InvalidPage as e:
-            raise Http404 from e
        kwargs["form"] = self.form
        kwargs["clipboard"] = SithFile.objects.filter(
            id__in=self.request.session["clipboard"]
        )
+        kwargs["children_albums"] = list(
+            Album.objects.viewable_by(self.request.user)
+            .filter(parent_id=self.object.id)
+            .order_by("-date")
+        )
        return kwargs


@ -326,9 +331,7 @@ class ModerationView(TemplateView):
        kwargs["albums_to_moderate"] = Album.objects.filter(
            is_moderated=False, is_in_sas=True, is_folder=True
        ).order_by("id")
-        kwargs["pictures"] = Picture.objects.filter(
-            is_moderated=False, is_in_sas=True, is_folder=False
-        )
+        kwargs["pictures"] = Picture.objects.filter(is_moderated=False)
        kwargs["albums"] = Album.objects.filter(
            id__in=kwargs["pictures"].values("parent").distinct("parent")
        )
--- a/sith/settings.py
+++ b/sith/settings.py
@ -34,6 +34,7 @@ https://docs.djangoproject.com/en/1.8/ref/settings/
 """

 import binascii
+import logging
 import os
 import sys
 from pathlib import Path
@ -98,6 +99,7 @@ INSTALLED_APPS = (
    "matmat",
    "pedagogy",
    "galaxy",
+    "antispam",
 )

 MIDDLEWARE = (
@ -204,13 +206,12 @@ SASS_PRECISION = 8
 WSGI_APPLICATION = "sith.wsgi.application"

 # Database
-# https://docs.djangoproject.com/en/1.8/ref/settings/#databases

 DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.sqlite3",
        "NAME": BASE_DIR / "db.sqlite3",
-    }
+    },
 }

 SESSION_ENGINE = "django.contrib.sessions.backends.cached_db"
@ -617,11 +618,14 @@ SITH_EBOUTIC_CB_ENABLED = True
 SITH_EBOUTIC_ET_URL = (
    "https://preprod-tpeweb.e-transactions.fr/cgi/MYchoix_pagepaiement.cgi"
 )
-SITH_EBOUTIC_PBX_SITE = "4000666"
-SITH_EBOUTIC_PBX_RANG = "42"
-SITH_EBOUTIC_PBX_IDENTIFIANT = "123456789"
+SITH_EBOUTIC_PBX_SITE = "1999888"
+SITH_EBOUTIC_PBX_RANG = "32"
+SITH_EBOUTIC_PBX_IDENTIFIANT = "2"
 SITH_EBOUTIC_HMAC_KEY = binascii.unhexlify(
-    "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"
+    "0123456789ABCDEF0123456789ABCDEF"
+    "0123456789ABCDEF0123456789ABCDEF"
+    "0123456789ABCDEF0123456789ABCDEF"
+    "0123456789ABCDEF0123456789ABCDEF"
 )
 SITH_EBOUTIC_PUB_KEY = ""
 with open(os.path.join(os.path.dirname(__file__), "et_keys/pubkey.pem")) as f:
@ -673,12 +677,16 @@ SITH_GIFT_LIST = [("AE Tee-shirt", _("AE tee-shirt"))]
 SENTRY_DSN = ""
 SENTRY_ENV = "production"

+TOXIC_DOMAINS_PROVIDERS = [
+    "https://www.stopforumspam.com/downloads/toxic_domains_whole.txt",
+]
+
 try:
    from .settings_custom import *

-    print("Custom settings imported", file=sys.stderr)
+    logging.getLogger("django").info("Custom settings imported")
 except:
-    print("Custom settings failed", file=sys.stderr)
+    logging.getLogger("django").warning("Custom settings failed")

 if DEBUG:
    INSTALLED_APPS += ("debug_toolbar",)
@ -734,7 +742,7 @@ SITH_FRONT_DEP_VERSIONS = {
    "https://github.com/viralpatel/jquery.shorten/": "",
    "https://github.com/getsentry/sentry-javascript/": "4.0.6",
    "https://github.com/jhuckaby/webcamjs/": "1.0.0",
-    "https://github.com/alpinejs/alpine": "3.10.5",
+    "https://github.com/alpinejs/alpine": "3.14.1",
    "https://github.com/mrdoob/three.js/": "r148",
    "https://github.com/vasturiano/three-spritetext": "1.6.5",
    "https://github.com/vasturiano/3d-force-graph/": "1.70.19",