cassandra.auth - Authentication¶
cassandra.auth.AuthProvider[source]¶
An abstract class that defines the interface that will be used for creating Authenticator instances when opening new connections to Cassandra.
New in version 2.0.0.
new_authenticator(host)[source]¶
Implementations of this class should return a new instance of Authenticator or one of its subclasses.
cassandra.auth.Authenticator[source]¶
An abstract class that handles SASL authentication with Cassandra servers.
Each time a new connection is created and the server requires authentication, a new instance of this class will be created by the corresponding AuthProvider to handler that authentication. The lifecycle of the new Authenticator will the be:
1) The initial_response() method will be called. The return value will be sent to the server to initiate the handshake.
2) The server will respond to each client response by either issuing a challenge or indicating that the authentication is complete (successful or not). If a new challenge is issued, evaluate_challenge() will be called to produce a response that will be sent to the server. This challenge/response negotiation will continue until the server responds that authentication is successful (or an AuthenticationFailed is raised).
3) When the server indicates that authentication is successful, on_authentication_success() will be called a token string that that the server may optionally have sent.
The exact nature of the negotiation between the client and server is specific to the authentication mechanism configured server-side.
New in version 2.0.0.
server_authenticator_class = None¶
Set during the connection AUTHENTICATE phase
initial_response()[source]¶
Returns an message to send to the server to initiate the SASL handshake. None may be returned to send an empty message.
evaluate_challenge(challenge)[source]¶
Called when the server sends a challenge message. Generally, this method should return None when authentication is complete from a client perspective. Otherwise, a string should be returned.
on_authentication_success(token)[source]¶
Called when the server indicates that authentication was successful. Depending on the authentication mechanism, token may be None or a string.
cassandra.auth.PlainTextAuthProvider(username, password)[source]¶
An AuthProvider that works with Cassandra’s PasswordAuthenticator.
Example usage:
from cassandra.cluster import Cluster
from cassandra.auth import PlainTextAuthProvider
auth_provider = PlainTextAuthProvider(
username='cassandra', password='cassandra')
cluster = Cluster(auth_provider=auth_provider)
New in version 2.0.0.
cassandra.auth.PlainTextAuthenticator(username, password)[source]¶
An Authenticator that works with Cassandra’s PasswordAuthenticator.
New in version 2.0.0.
cassandra.auth.SaslAuthProvider(**sasl_kwargs)[source]¶
An AuthProvider supporting general SASL auth mechanisms
Suitable for GSSAPI or other SASL mechanisms
Example usage:
from cassandra.cluster import Cluster
from cassandra.auth import SaslAuthProvider
sasl_kwargs = {'service': 'something',
'mechanism': 'GSSAPI',
'qops': 'auth'.split(',')}
auth_provider = SaslAuthProvider(**sasl_kwargs)
cluster = Cluster(auth_provider=auth_provider)
New in version 2.1.4.
cassandra.auth.SaslAuthenticator(host, service, mechanism='GSSAPI', **sasl_kwargs)[source]¶
A pass-through Authenticator using the third party package ‘pure-sasl’ for authentication
New in version 2.1.4.
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