daybook/daybook_project/settings.py
peter 5f872b4b32 Fix #015 (nested-JSON 500) and #016 (ragged CSV data loss)
#015 — deeply nested JSON raised RecursionError (a RuntimeError, not
ValueError) and became an unhandled 500 on two paths:
- json-kind content validation now catches RecursionError -> 400.
- Added a custom DRF EXCEPTION_HANDLER
  (artifacts/exception_handlers.py, wired via REST_FRAMEWORK) mapping
  otherwise-unhandled RecursionError -> 400, covering the parser-level
  crash on deeply nested request bodies (metadata etc.) too.

#016 — wrap_csv_viewer handed Grid.js rows without reconciling width to the
header, so over-long rows silently dropped cells. Now normalizes every row
to the max width: long rows widen the columns (auto-named "Column N"),
short rows pad with "". No cell is dropped.

Both verified live; 4 regression tests added. 106 tests pass.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-09-03 10:57:07 +01:00

102 lines
3.5 KiB
Python

import os
from pathlib import Path
BASE_DIR = Path(__file__).resolve().parent.parent
DATA_DIR = Path(os.environ.get("DAYBOOK_DATA_DIR", BASE_DIR)).resolve()
SECRET_KEY = os.environ.get("DJANGO_SECRET_KEY", "dev-only-change-me")
DEBUG = os.environ.get("DJANGO_DEBUG", "1").lower() in {"1", "true", "yes", "on"}
ALLOWED_HOSTS = [host.strip() for host in os.environ.get("DJANGO_ALLOWED_HOSTS", "*").split(",") if host.strip()]
# Needed when running behind a TLS-terminating reverse proxy (Apache/Nginx/etc.):
# Django otherwise thinks every request is plain HTTP, which breaks CSRF checks
# on login/POST. The proxy must forward X-Forwarded-Proto: https.
CSRF_TRUSTED_ORIGINS = [origin.strip() for origin in os.environ.get("DJANGO_CSRF_TRUSTED_ORIGINS", "").split(",") if origin.strip()]
SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")
INSTALLED_APPS = [
"django.contrib.admin",
"django.contrib.auth",
"django.contrib.contenttypes",
"django.contrib.sessions",
"django.contrib.messages",
"django.contrib.staticfiles",
"rest_framework",
"rest_framework.authtoken",
"artifacts",
]
MIDDLEWARE = [
"django.middleware.security.SecurityMiddleware",
"whitenoise.middleware.WhiteNoiseMiddleware",
"django.contrib.sessions.middleware.SessionMiddleware",
"django.middleware.common.CommonMiddleware",
"django.middleware.csrf.CsrfViewMiddleware",
"django.contrib.auth.middleware.AuthenticationMiddleware",
"django.contrib.messages.middleware.MessageMiddleware",
"django.middleware.clickjacking.XFrameOptionsMiddleware",
]
ROOT_URLCONF = "daybook_project.urls"
TEMPLATES = [
{
"BACKEND": "django.template.backends.django.DjangoTemplates",
"DIRS": [BASE_DIR / "templates"],
"APP_DIRS": True,
"OPTIONS": {
"context_processors": [
"django.template.context_processors.request",
"django.contrib.auth.context_processors.auth",
"django.contrib.messages.context_processors.messages",
],
},
},
]
WSGI_APPLICATION = "daybook_project.wsgi.application"
REST_FRAMEWORK = {
# Maps deeply-nested-JSON RecursionErrors (raised in DRF's parser, before
# view validation) to a 400 instead of an unhandled 500. See issue #015.
"EXCEPTION_HANDLER": "artifacts.exception_handlers.daybook_exception_handler",
}
DATABASES = {
"default": {
"ENGINE": "django.db.backends.sqlite3",
"NAME": os.environ.get("DATABASE_PATH", DATA_DIR / "db.sqlite3"),
# SQLite has no row-level locking; concurrent quota-affecting writes
# (see storage.make_room_for) serialize on the whole database.
# Without an explicit timeout, Python's sqlite3 default (5s) is often
# enough, but a contended request past that raises "database is
# locked" as a raw 500 instead of just waiting. 20s comfortably
# covers this app's actual write latency (milliseconds) under any
# realistic concurrency at this project's scale.
"OPTIONS": {"timeout": 20},
}
}
AUTH_PASSWORD_VALIDATORS = []
LOGIN_URL = "login"
LOGIN_REDIRECT_URL = "feed"
LANGUAGE_CODE = "en-us"
TIME_ZONE = "UTC"
USE_I18N = True
USE_TZ = True
STATIC_URL = "static/"
STATICFILES_DIRS = [BASE_DIR / "static"]
STATIC_ROOT = BASE_DIR / "staticfiles"
STORAGES = {
"staticfiles": {
"BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
},
}
DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
ARTIFACTS_ROOT = Path(os.environ.get("ARTIFACTS_ROOT", DATA_DIR / "artifacts_store"))