FreedomBox/plinth/settings.py
Sunil Mohan Adapa 61545d1b8d
web_framework: Cleanup expired sessions every week
Currently, sessions are created as files in /var/lib/plinth/sessions. If a user
does not logout, the sessions remains there ever after expiry. Cleanup these
accumulating files by running a cleanup job every week.

Adding django.contrib.sessions to apps list necessary to ensure that
'clearsessions' management command is available. This creates an empty database
table for session storage but is harmless.

Tests performed:

- When run with the change for first time, migration is run for
django.contrib.sessions app.

- Change the scheduled interval to 30 seconds in the code. Login as a user. A
new session file is created in data/var/lib/plinth/sessions. Forward the system
clock by at least 2 weeks. The session expires. Within 30 seconds the file is
also removed.

- Login, then remove the django-secret.key. In 30 seconds we see a message that
the session data is corrupt. Advance the clock by at least 2 weeks. The session
file is removed and the message about session data is no longer printed.

- Repeat for system level plinth after `./setup.py install` and `sudo -u plinth
plinth`.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
2020-02-24 18:04:26 -05:00

186 lines
5.1 KiB
Python

#
# This file is part of FreedomBox.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""
Basic settings for Django web framework.
During initialization of the service, these settings are overridden before
Django is initialized. However, this file has been written in this format to
let Django initialization easier in other situations such as test cases,
documentation generation, debugging etc.
See: https://docs.djangoproject.com/en/dev/ref/settings/
"""
ALLOWED_HOSTS = ['*']
_pwd = 'django.contrib.auth.password_validation'
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': '{}.UserAttributeSimilarityValidator'.format(_pwd),
},
{
'NAME': '{}.MinimumLengthValidator'.format(_pwd),
'OPTIONS': {
'min_length': 8,
}
},
{
'NAME': '{}.CommonPasswordValidator'.format(_pwd),
},
{
'NAME': '{}.NumericPasswordValidator'.format(_pwd),
},
]
AXES_LOCKOUT_URL = 'locked/'
AXES_RESET_ON_SUCCESS = True # Only used with axes >= 4.4.3
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.dummy.DummyCache'
}
}
CAPTCHA_FONT_PATH = ['/usr/share/fonts/truetype/ttf-bitstream-vera/Vera.ttf']
CAPTCHA_LENGTH = 6
CAPTCHA_FLITE_PATH = '/usr/bin/flite'
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
# Overridden based on the configuration key store_file
'NAME': '/var/lib/plinth/plinth.sqlite3'
}
}
# Overridden based on command line argument --develop
DEBUG = False
# Overridden based on the configuration key server_dir
FORCE_SCRIPT_NAME = '/plinth'
# FreedomBox apps are appended to this list
INSTALLED_APPS = [
'axes',
'captcha',
'bootstrapform',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.messages',
'django.contrib.sessions',
'stronghold',
'plinth',
]
# Overridden based on configuration key use_x_forwarded_host
IPWARE_META_PRECEDENCE_ORDER = ('REMOTE_ADDR', )
# Overridden by get_languages()
LANGUAGES = [('en', 'English')]
# Overridden by log configuration in log.py
LOGGING = {'version': 1}
LOGIN_URL = 'users:login'
LOGIN_REDIRECT_URL = 'index'
# Overridden before initialization
MESSAGE_TAGS = {}
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',
'stronghold.middleware.LoginRequiredMiddleware',
'plinth.middleware.AdminRequiredMiddleware',
'plinth.middleware.FirstSetupMiddleware',
'plinth.modules.first_boot.middleware.FirstBootMiddleware',
'plinth.middleware.SetupMiddleware',
)
PASSWORD_HASHERS = [
'django.contrib.auth.hashers.Argon2PasswordHasher',
'django.contrib.auth.hashers.PBKDF2PasswordHasher',
'django.contrib.auth.hashers.PBKDF2SHA1PasswordHasher',
'django.contrib.auth.hashers.BCryptSHA256PasswordHasher',
]
ROOT_URLCONF = 'plinth.urls'
SECURE_BROWSER_XSS_FILTER = True
SECURE_CONTENT_TYPE_NOSNIFF = True
# Overridden based configuration key secure_proxy_ssl_header
SECURE_PROXY_SSL_HEADER = None
SESSION_ENGINE = 'django.contrib.sessions.backends.file'
SESSION_FILE_PATH = '/var/lib/plinth/sessions'
# Overridden based on configuration key server_dir
STATIC_URL = '/plinth/static/'
# STRONGHOLD_PUBLIC_URLS=(r'^captcha/', )
STRONGHOLD_PUBLIC_NAMED_URLS = (
'captcha-image',
'captcha-image-2x',
'captcha-audio',
'captcha-refresh',
)
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.contrib.auth.context_processors.auth',
'django.template.context_processors.debug',
'django.template.context_processors.i18n',
'django.template.context_processors.media',
'django.template.context_processors.request',
'django.template.context_processors.static',
'django.template.context_processors.tz',
'django.contrib.messages.context_processors.messages',
'plinth.context_processors.common',
],
},
},
]
TIME_ZONE = 'UTC'
USE_L10N = True
USE_TZ = True
# Overridden by configuration setting use_x_forwarded_host
USE_X_FORWARDED_HOST = False