Authlib is a library built specifically for simplifying the task of adding authentication and authorization features to RESTful web services that reside within BrightHive Data Trusts. With this library, developers simply need to provision an OAuth 2.0 provider and inject it into a simple decorator to protect specific URLs.
- Built-in Support for Auth0.
- Simple decorator for injecting auth capabilities into applications.
- Purpose-built for use with Flask applications, however can be extended to other frameworks.
Pypi is the fastest method for installing this library. Simply install the brighthive-authlib package via the Pip installer. This library is intended for use with Python 3.5+.
pip install brighthive-authlibInstalling the library via Pipenv is straightforward.
pipenv install brighthive-authlib- flask >= 1.0.2
- pycryptodome >= 3.8.0
- python-jose[pycryptodome] >= 3.0.1
- requests >= 2.21.0
The code snippet shown below is a simple Flask application configured to use Auth0 as the default OAuth 2.0 provider. Three steps are required to configure the library for use with a Flask application:
- Instantiate the OAuth 2.0 provider object.
- Decorate the route(s) to protect with the
token_requireddecorator (passing the OAuth 2.0 provider object and optionally a dictionary of scopes). - Configure the custom error handler to deal with
OAuth2ProviderErrorexceptions (in this example, a 401 status is returned). - Sit back and marvel at how painless the entire process is.
import json
from flask import Flask, request
from brighthive_authlib import OAuth2ProviderError, OAuth2ProviderFactory, AuthLibConfiguration, token_required
# Warning: Testing purposes only. These attributes need to be protected.
PROVIDER = 'AUTH0'
OAUTH2_URL = 'https://brighthive-test.auth0.com'
JSON_URL = '{}/.well-known/jwks.json'.format(OAUTH2_URL)
AUDIENCE = 'http://localhost:8000'
ALGORITHMS = ['RS256']
# Build the Auth Service Configuration Object
auth_config = AuthLibConfiguration(
provider=PROVIDER, base_url=OAUTH2_URL, jwks_url=JSON_URL, algorithms=ALGORITHMS, audience=AUDIENCE)
oauth2_provider = OAuth2ProviderFactory.get_provider(PROVIDER, auth_config)
# Builed the Flask App
app = Flask(__name__)
# Add a Public Route
@app.route('/public')
def public_resource():
return json.dumps({'message': 'You can see me because I am public!'}), 200
# Add a Private Route
@app.route('/private')
@token_required(oauth2_provider, ['get:users'])
def private_resource():
return json.dumps({'message': 'If you can see me, you have a valid token.'}), 200
# Error Handler for Invalid or Expired Tokens
@app.errorhandler(OAuth2ProviderError)
def handle_auth_error(e):
return json.dumps({'message': 'Access Denied'}), 401
if __name__ == '__main__':
app.run(debug=True)To contribute code to this project, simply:
- Fork the repository from here.
- Write some code and associated unit tests.
- Create a pull request.
To set up a development environment, clone the repository and create a virtual environmemt with Pipenv.
git clone git@github.com:brighthive/tpot-abacus-api.git
cd tpot-abacus-apiInstall Python project and development dependencies.
pipenv install --devThis project uses the excellent pytest and expects libraries for unit testing. All unit tests are housed in the tests module. To run unit tests, invoke pytest at the command prompt.
$ pytest
======= test session starts =======
platform darwin -- Python 3.7.2, pytest-4.3.1, py-1.8.0, pluggy-0.9.0
rootdir: /Users/gmundy/Work/brighthive-data-trusts/authlib, inifile: pytest.ini
plugins: cov-2.6.1
collected 2 items
tests/test_provider_factory.py .. [100%]
=========== 2 passed in 0.60 seconds ===========Copyright © 2019 BrightHive
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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