from pyramid.security import remember, forget
from pyramid.authentication import AuthTktAuthenticationPolicy

def includeme(config):
    config.include('pyramid_contextauth')
    config.register_authentication_policy(
        AuthTktAuthenticationPolicy('secret'),
        Context1,
    )
    config.register_authentication_policy(
        ContextAuthenticationPolicy(),
        (Context2, Context3),
    )


class Context1(object):
    pass


class Context2(object):
    pass


class Context3(object):
    pass


class ContextAuthenticationPolicy(object):

    def authenticated_userid(self, request):
        return unauthenticated_userid(request)

    def unauthenticated_userid(self, request):
        "A dummy example"
        return request.POST.get('userid')

    def effective_principals(self, request):
        if self.unauthenticated_userid(request):
            return ['User']
        return []

    def remember(self, request, prinicpal, **kw):
        return remember(request, prinicpal, **kw)

    def forget(self, request):
        return forget(request)