miniauth 0.2.0

Simple local user authentication

MiniAuth is a small program (and a Python library) for user authentication. with handy features, making it easy to use in different contexts and integrate with other programs.

MiniAuth is simple and portable, runs on Python versions 2.7 and Python 3.4+ and has no dependencies other than Python standard library.

When the Python package is installed, the miniauth CLI entrypoint is provided to manage and use a local database of users, using a SQLite backend.

Features:

• Passwords are stored salted and hashed. The hash is configurable per record, default is a secure choice (sha512)

• Supports enabling/disabling users

• Credentials can be specified in different ways: command line arguments, standard input, files

• When used as a Python library, a custom storage can be used instead of default SQLite storage

Here is how to create a user and password, then verifying the credentials:

$ miniauth save testuser
Password:

$ miniauth verify testuser
Password:
# exit codes report the result of verification

By default a SQLite DB file is created in current working directory named miniauth.db. The path to this file can be configured with the –storage option.

When verifying the credentials, the password can be specified as an argument, or read from standard input or a file.

$ miniauth --storage=user.db --verbose save testuser --password testpassword
No DB detected on "user.db". Creating latest DB schema ...
DB schema updated to version user.db on "1"
created user testuser

# read password from arguments
$ miniauth --storage=user.db --verbose verify testuser testpassword
user testuser credentials are correct

# read password from a file
$ cat file_with_password
testpassword
$ miniauth --storage=user.db --verbose verify testuser --password-file file_with_password
user testuser credentials are correct

# read username and password from a file
$ cat file_with_creds
testuser
testpassword
$ miniauth --storage=user.db --verbose verify --creds-file file_with_creds
user testuser credentials are correct

Authenticating users can be done in other Python applications using miniauth as a library.

>>> from miniauth.auth import MiniAuth
>>> auth = MiniAuth('users.db')
>>> auth.create_user('user', 'password')
True
>>> auth.verify_user('user', 'password')
True
>>> auth.verify_user('user', 'invalidpassword')
False

MiniAuth can use storage backends other than the default SQLite based one. Storage classes should inherit AbstractStorage and implement the abstract methods.

>>> from miniauth.storage import AbstractStorage
>>> class CustomStorage(AbstractStorage):
...      # implement abstract methods
...      pass
>>> auth = MiniAuth('', CustomStorage())

Installation

$ pip install miniauth

Or installing from source:

$ python setup.py install

Development

Source code is on GitHub

In development/test environments pytest, mock , pycodestyle and mypy are required.

# on dev/test env
$ pip install -r requirements/dev.txt

Tests

Tox is most convenient to run tests with, since it handles virtualenvs

$ tox

Or when development dependencies are installed (preferably with a virtual environment), tests can be run by directly calling pytest.

$ pytest

License

MiniAuth is an open source project released under the terms of MIT license.

The MIT License (MIT)

Copyright (c) 2018-2019 Farzad Ghanei

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.