AuthenticationΒΆ

pseud allows you to build your own Authentication Backend. Your implementation must conform to its Interface defined in pseud.interfaces.IAuthenticationBackend

Also all your plugin must adapts pseud.interfaces.IClient or pseud.interfaces.IServer and being registered thanks to pseud.utils.register_auth_backend() decorator.

Implementing your own authentication backend can be used to support CURVE encryption. And also for more advanced use-case with external ID provider. That is your favorite web-framework or simple PAM, you name it.

You can start with the following snippet

@register_auth_backend
@zope.interface.implementer(IAuthenticationBackend)
@zope.component.adapter(IClient)
class MyAuthenticationBackend(object):
    """
    This implementation implements
    IAuthenticationBackend and adapts IClient
    """
    name = 'my_auth_backend'

    def __init__(self, rpc):
        self.rpc = rpc

    def stop(self):
        pass

    def configure(self):
        pass

    def handle_hello(self, *args):
        pass

    def handle_authenticated(self, message):
        pass

    def is_authenticated(self, user_id):
        return True

    def save_last_work(self, message):
        pass

    def get_predicate_arguments(self, user_id):
        return {}

In this example the name ‘my_auth_backend’ will be used when instanciating your RPC endpoint.

client = pseud.Client('remote',
                      security_plugin='my_auth_backend')

Read Protocol v1 for more explanation. Also in pseud.auth you will find examples that are used in tests.