drinks-manager/application/drinks_manager/settings.py

"""
Django settings for drinks_manager project.

Generated by 'django-admin startproject' using Django 3.2.5.

For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""

import os

from pathlib import Path


# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key secret!
django_secret_key_absolute_fp = os.environ["DJANGO_SK_ABS_FP"]
with open(django_secret_key_absolute_fp) as secret_key_file:
    SECRET_KEY = secret_key_file.read().strip()

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = (os.environ["DJANGO_DEBUG"].lower() == "true")


ALLOWED_HOSTS = [
    "*"
]


### CSP Configuration ###


CSP_DEFAULT_SRC = ("'self'", )


### ----------------- ###


# Application definition

INSTALLED_APPS = [
    "app.apps.DAppConfig",
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    "django.middleware.locale.LocaleMiddleware",
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    "django_currentuser.middleware.ThreadLocalUserMiddleware",
    "app.middleware.csp_middleware"
]

ROOT_URLCONF = 'drinks_manager.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
                "app.context_processors.app_version"
            ],
        },
    },
]

WSGI_APPLICATION = 'drinks_manager.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': os.environ["PGDB_DB"],
        'USER': os.environ["PGDB_USER"],
        'PASSWORD': os.environ["PGDB_PASSWORD"],
        'HOST': os.environ["PGDB_HOST"],
        'PORT': str(os.environ["PGDB_PORT"])
    }
}

CONN_MAX_AGE = 20 # keep database connections alive for n seconds


# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

if os.environ["DJANGO_ENABLE_PASSWORD_VALIDATION"].lower() == "true":
    AUTH_PASSWORD_VALIDATORS = [
        {
            'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
        },
        {
            'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
        },
        {
            'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
        },
        {
            'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
        },
    ]
else:
    AUTH_PASSWORD_VALIDATORS = []


AUTH_USER_MODEL = "app.User"

# user will be logged out after x seconds
SESSION_COOKIE_AGE = int(os.environ["DJANGO_SESSION_COOKIE_AGE"])


# more security settings

CSRF_COOKIE_SECURE = True
SESSION_COOKIE_SECURE = True


# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = os.environ["DJANGO_LANGUAGE_CODE"] # this is the default and fallback language (currently only de-de and en-us supported)

TIME_ZONE = os.environ["DJANGO_TIME_ZONE"]

USE_I18N = True

USE_L10N = True

USE_TZ = True

LOCALE_PATHS = [
    BASE_DIR / "locale"
]


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
STATIC_ROOT = os.environ["STATIC_FILES"]


# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

#

APP_VERSION = os.environ["APP_VERSION"]

try:
    CURRENCY_SUFFIX = os.environ["CURRENCY_SUFFIX"]
except KeyError:
    CURRENCY_SUFFIX = "$"