Remove async

.pre-commit-config.yaml

@@ -2,7 +2,7 @@ exclude: "^docs/|.idea|devcontainer.json|tests/fixtures|tests/.*snapshots/.*\\.(
 default_stages: [pre-commit]
 
 default_language_version:
-  python: python3.12
+  python: python3.13
 
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
@@ -64,7 +64,7 @@ repos:
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.9.10
+    rev: v0.11.2
     hooks:
       - id: ruff
         args: [--fix, --preview]

CHANGELOG.md

@@ -2,6 +2,18 @@
 
 ## Unreleased
 
+## 25.04.1
+
+- Remove async functions to simplify the code.
+  - We now run with `gunicorn` instead of `daphne` in production. We use 4 `gunicorn` workers.
+- Switch to Python 3.13
+- Correct title for feeds without sections in feeds admin.
+
+## 25.03.2
+
+- Improve user Django admin page.
+- Prevent errors with empty slugs.
+
 ## 25.03.1
 
 - Can filter tags in tags admin.

README.md

@@ -28,7 +28,7 @@ You will have to start Django with the provided run target.
 
 ### Using Pycharm
 
-By default, everything is set up to develop locally with Pycharm. So you will need docker (for the database), [uv](https://docs.astral.sh/uv/), Python 3.12 and nodeJS 20+ installed for this to work.
+By default, everything is set up to develop locally with Pycharm. So you will need docker (for the database), [uv](https://docs.astral.sh/uv/), Python 3.13 and nodeJS 20+ installed for this to work.
 Django will be started automatically.
 On the first run, you must run `npm install` to install a few JS deps and `uv run pre-commit install --hook-type pre-commit --hook-type pre-push` to configure `pre-commit`.
 

config/settings.py

@@ -8,6 +8,7 @@
 import asgiref
 import django
 import environ
+from csp.constants import NONCE, NONE, SELF, STRICT_DYNAMIC, UNSAFE_INLINE
 from django.contrib.messages import constants as messages
 from django.utils.translation import gettext_lazy as _
 from template_partials.apps import wrap_loaders
@@ -101,7 +102,6 @@
 # APPS
 # ------------------------------------------------------------------------------
 DJANGO_APPS = [
-    "daphne",
     "django.contrib.auth",
     "django.contrib.contenttypes",
     "django.contrib.sessions",
@@ -332,30 +332,31 @@
 # https://django-csp.readthedocs.io/en/latest/configuration.html
 # https://content-security-policy.com/
 # https://csp-evaluator.withgoogle.com/
-CSP_DEFAULT_SRC = ("'self'",)
-CSP_SCRIPT_SRC = ("'strict-dynamic'", "'unsafe-inline'", "https:")
-CSP_SCRIPT_SRC_ATTR = None
-CSP_SCRIPT_SRC_ELEM = None
-CSP_IMG_SRC = ("'self'", "data:")
-CSP_OBJECT_SRC = ("'none'",)
-CSP_MEDIA_SRC = ("'self'",)
-CSP_FRAME_SRC = ("'none'",)
-CSP_FONT_SRC = ("'self'",)
-CSP_CONNECT_SRC = env.tuple("CSP_CONNECT_SRC", default=("'self'",))
-CSP_STYLE_SRC = ("'strict-dynamic'", "'unsafe-inline'", "https:")
-CSP_STYLE_SRC_ATTR = None
-CSP_STYLE_SRC_ELEM = None
-CSP_BASE_URI = ("'none'",)
-CSP_FRAME_ANCESTORS = ("'none'",)
-CSP_FORM_ACTION = ("'self'",)
-CSP_MANIFEST_SRC = ("'self'",)
-CSP_WORKER_SRC = ("'self'",)
-CSP_PLUGIN_TYPES = None
-CSP_REQUIRE_SRI_FOR = None
-CSP_INCLUDE_NONCE_IN = ("script-src", "style-src")
-# Those are forced to true in production
-CSP_UPGRADE_INSECURE_REQUESTS = IS_PRODUCTION
-CSP_BLOCK_ALL_MIXED_CONTENT = IS_PRODUCTION
+CONTENT_SECURITY_POLICY = {
+    "DIRECTIVES": {
+        "default-src": (SELF,),
+        "script-src": (STRICT_DYNAMIC, UNSAFE_INLINE, "https:", NONCE),
+        "script-src-attr": None,
+        "script-src-elem": None,
+        "img-src": (SELF, "data:"),
+        "object-src": (NONE,),
+        "media-src": (SELF,),
+        "frame-src": (NONE,),
+        "font-src": (SELF,),
+        "connect-src": env.tuple("CSP_CONNECT_SRC", default=(SELF,)),
+        "style-src": (STRICT_DYNAMIC, UNSAFE_INLINE, "https:", NONCE),
+        "style-src-attr": None,
+        "style-src-elem": None,
+        "base-uri": (NONE,),
+        "child-src": (NONE,),
+        "frame-ancestors": (NONE,),
+        "form-action": (SELF,),
+        "manifest-src": (SELF,),
+        "worker-src": (SELF,),
+        "require-sri-for": (NONE,),
+        "upgrade-insecure-requests": IS_PRODUCTION,
+    },
+}
 
 
 # CORS
@@ -490,11 +491,9 @@
 # ------------------------------------------------------------------------------
 ACCOUNT_ALLOW_REGISTRATION = env.bool("DJANGO_ACCOUNT_ALLOW_REGISTRATION", True)
 # https://django-allauth.readthedocs.io/en/latest/configuration.html
-ACCOUNT_AUTHENTICATION_METHOD = "email"
-# https://django-allauth.readthedocs.io/en/latest/configuration.html
-ACCOUNT_EMAIL_REQUIRED = True
+ACCOUNT_LOGIN_METHODS = {"email"}
 # https://django-allauth.readthedocs.io/en/latest/configuration.html
-ACCOUNT_USERNAME_REQUIRED = False
+ACCOUNT_SIGNUP_FIELDS = ["email*", "password1*", "password2*"]
 # https://django-allauth.readthedocs.io/en/latest/configuration.html
 ACCOUNT_USER_MODEL_USERNAME_FIELD = None
 # https://django-allauth.readthedocs.io/en/latest/configuration.html
@@ -515,7 +514,7 @@
 # django-version-checks (https://pypi.org/project/django-version-checks/)
 # ------------------------------------------------------------------------------
 VERSION_CHECKS = {
-    "python": "==3.12.*",
+    "python": "==3.13.*",
     "postgresql": ">=16",
 }
 
@@ -623,7 +622,7 @@ def before_send_to_sentry(event, hint):
 # ------------------------------------------------------------------------------
 # See https://django-ninja.dev/reference/settings/
 NINJA_PAGINATION_MAX_LIMIT = 500
-NINJA_PAGINATION_CLASS = "legadilo.utils.pagination.LimitOffsetPagination"
+NINJA_PAGINATION_CLASS = "ninja.pagination.LimitOffsetPagination"
 
 
 # Legadilo's specific stuff...

devops/compose/local/django/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.12-slim-bookworm
+FROM python:3.13-slim-bookworm
 
 ARG BUILD_ENVIRONMENT=local
 ARG APP_HOME=/app

devops/compose/local/docs/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.12-slim-bookworm
+FROM python:3.13-slim-bookworm
 
 ARG BUILD_ENVIRONMENT
 ENV PYTHONUNBUFFERED 1

devops/compose/production/django/Dockerfile

@@ -5,7 +5,7 @@ COPY ./package-lock.json /
 
 RUN cd / && npm install
 
-FROM python:3.12-slim-bookworm AS python-builder
+FROM python:3.13-slim-bookworm AS python-builder
 
 ARG BUILD_ENVIRONMENT=production
 ARG APP_HOME=/app
@@ -46,7 +46,7 @@ RUN chmod +x /setup-django.sh
 RUN /setup-django.sh
 
 
-FROM python:3.12-slim-bookworm
+FROM python:3.13-slim-bookworm
 
 ARG BUILD_ENVIRONMENT=production
 ARG APP_HOME=/app

devops/compose/production/django/start.sh

@@ -4,19 +4,22 @@ set -o errexit
 set -o pipefail
 set -o nounset
 
+readonly SERVER_PORT=8000
+readonly NB_GUNICORN_WORKERS=4
+readonly GUNICORN_REQUEST_TIMEOUT=60
+
 python manage.py createcachetable
 python manage.py migrate
 
 cmd="${1:-server}"
 
 case "${cmd}" in
     server)
-        SERVER_PORT=8000
         echo "Starting server on port ${SERVER_PORT}"
         if [[ "${BUILD_ENV}" == "local" ]]; then
-            exec python manage.py runserver 0.0.0.0:${SERVER_PORT}
+            exec python manage.py runserver "0.0.0.0:${SERVER_PORT}"
         else
-            exec daphne config.asgi:application --bind 0.0.0.0 --port ${SERVER_PORT} --no-server-name --verbosity 1
+            exec gunicorn config.wsgi:application --bind "0.0.0.0:${SERVER_PORT}" --timeout ${GUNICORN_REQUEST_TIMEOUT} --workers ${NB_GUNICORN_WORKERS}
         fi
         ;;
     cron)

docs/adrs/0009-remove-asnyc-for-now.md

@@ -0,0 +1,35 @@
+# 9 - Remove async for now
+
+* **Date:** 2025-04-01
+* **Status:** Accepted
+* Partially supersedes <project:./0000-project-setup.md> and <project:./0005-deployment.md>
+
+## Context
+
+After using async, it brings complexity for performance improvements we need yet.
+The main issue being that we cannot yet use transactions in an async context (see [this issue](https://code.djangoproject.com/ticket/33882)).
+This results in extra complexities with usages of `sync_to_async` and `async_to_sync` to switch from one context to another.
+
+Since we do multiple database operations, I think transaction must be used to always be in a valid state.
+Or to state it differently: since we are far from performance problems yet, it’s best to just use transactions for consistency than to remove them to have cleaner async support or have the complexity that comes with sync to async conversions.
+
+Since we do lots of async requests, I still think async makes sense.
+Just not now.
+
+
+## Decisions
+
+Simply the code as much as we can and remove async support for now.
+It will impact many files, but it should be relatively straightforward.
+
+
+## Consequences
+
+- We may have to re-add async later on.
+- Lots of code changes.
+- Must have an export command to export big files.
+- Use `gunicorn` to run the application in production:
+  - It’s kind of a default choice for this, and I’ve used it in the past with great success. 
+  - Create an incoming HTTP request timeout. Set it to 60s to allow for slow search.
+  - Use 4 workers: from my experience, it’s a good number.
+- We may need to allow for incoming request timeout and number of workers to be configured.

justfile

@@ -22,7 +22,7 @@ release:
     echo "Creating version ${new_tag} Press enter to accept."
     read -r
 
-    {{docker-cmd}} pull python:3.12-slim-bookworm
+    {{docker-cmd}} pull python:3.13-slim-bookworm
     {{docker-compose-cmd}} -f production.yml build --build-arg "VERSION=${new_tag}" django
     {{docker-cmd}} image tag legadilo_production_django:latest "rg.fr-par.scw.cloud/legadilo/legadilo-django:${new_tag}"
     {{docker-cmd}} image tag legadilo_production_django:latest rg.fr-par.scw.cloud/legadilo/legadilo-django:latest

legadilo/constants.py

@@ -15,3 +15,4 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 SEARCHED_TEXT_MIN_LENGTH = 3
+MAX_PARALLEL_CONNECTIONS = 10