OAuth 2.0 provider for python
Project description
This project is not maintained anymore. If you are looking for a OAuth 2.0 library to integrate into your Python application, I recommend oauthlib.
python-oauth2
python-oauth2 is a framework that aims at making it easy to provide authentication via OAuth 2.0 within an application stack.
Status
python-oauth2 has reached its beta phase. All main parts of the OAuth 2.0 RFC such as the various types of Grants, Refresh Token and Scopes have been implemented. However, bugs might occur or implementation details might be wrong.
Installation
python-oauth2 is available on PyPI.
pip install python-oauth2
Usage
Example Authorization server
from wsgiref.simple_server import make_server
import oauth2
import oauth2.grant
import oauth2.error
import oauth2.store.memory
import oauth2.tokengenerator
import oauth2.web.wsgi
# Create a SiteAdapter to interact with the user.
# This can be used to display confirmation dialogs and the like.
class ExampleSiteAdapter(oauth2.web.AuthorizationCodeGrantSiteAdapter,
oauth2.web.ImplicitGrantSiteAdapter):
TEMPLATE = '''
<html>
<body>
<p>
<a href="{url}&confirm=confirm">confirm</a>
</p>
<p>
<a href="{url}&deny=deny">deny</a>
</p>
</body>
</html>'''
def authenticate(self, request, environ, scopes, client):
# Check if the user has granted access
if request.post_param("confirm") == "confirm":
return {}
raise oauth2.error.UserNotAuthenticated
def render_auth_page(self, request, response, environ, scopes,
client):
url = request.path + "?" + request.query_string
response.body = self.TEMPLATE.format(url=url)
return response
def user_has_denied_access(self, request):
# Check if the user has denied access
if request.post_param("deny") == "deny":
return True
return False
# Create an in-memory storage to store your client apps.
client_store = oauth2.store.memory.ClientStore()
# Add a client
client_store.add_client(client_id="abc", client_secret="xyz",
redirect_uris=["http://localhost/callback"])
site_adapter = ExampleSiteAdapter()
# Create an in-memory storage to store issued tokens.
# LocalTokenStore can store access and auth tokens
token_store = oauth2.store.memory.TokenStore()
# Create the controller.
provider = oauth2.Provider(
access_token_store=token_store,
auth_code_store=token_store,
client_store=client_store,
token_generator=oauth2.tokengenerator.Uuid4()
)
# Add Grants you want to support
provider.add_grant(oauth2.grant.AuthorizationCodeGrant(site_adapter=site_adapter))
provider.add_grant(oauth2.grant.ImplicitGrant(site_adapter=site_adapter))
# Add refresh token capability and set expiration time of access tokens
# to 30 days
provider.add_grant(oauth2.grant.RefreshToken(expires_in=2592000))
# Wrap the controller with the Wsgi adapter
app = oauth2.web.wsgi.Application(provider=provider)
if __name__ == "__main__":
httpd = make_server('', 8080, app)
httpd.serve_forever()This example only shows how to instantiate the server. It is not a working example as a client app is missing. Take a look at the examples directory.
Supported storage backends
python-oauth2 does not force you to use a specific database. It currently supports these storage backends out-of-the-box:
MongoDB
MySQL
Redis
Memcached
However, you are not not bound to these implementations. By adhering to the interface defined by the base classes in oauth2.store, you can easily add an implementation of your backend. It also is possible to mix different backends and e.g. read data of a client from MongoDB while saving all tokens in memcached for fast access.
Take a look at the examples in the examples directory of the project.
Site adapter
Like for storage, python-oauth2 does not define how you identify a user or show a confirmation dialogue. Instead your application should use the API defined by oauth2.web.SiteAdapter.
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