give Spawners, Authenticators db access

as self.db

jupyterhub/app.py

@@ -287,7 +287,7 @@ class JupyterHub(Application):
     
     authenticator = Instance(Authenticator)
     def _authenticator_default(self):
-        return self.authenticator_class(config=self.config)
+        return self.authenticator_class(parent=self, db=self.db)
 
     # class for spawning single-user servers
     spawner_class = Type(LocalProcessSpawner, Spawner,
@@ -577,7 +577,7 @@ class JupyterHub(Application):
                 continue
             self.log.debug("Loading state for %s from db", user.name)
             user.spawner = spawner = self.spawner_class(
-                user=user, hub=self.hub, config=self.config,
+                user=user, hub=self.hub, config=self.config, db=self.db,
             )
             status = yield spawner.poll()
             if status is None:

jupyterhub/auth.py

@@ -10,7 +10,7 @@ from tornado import gen
 import simplepam
 
 from IPython.config import LoggingConfigurable
-from IPython.utils.traitlets import Bool, Set, Unicode
+from IPython.utils.traitlets import Bool, Set, Unicode, Any
 
 from .handlers.login import LoginHandler
 from .utils import url_path_join
@@ -21,6 +21,7 @@ class Authenticator(LoggingConfigurable):
     The API is one method, `authenticate`, a tornado gen.coroutine.
     """
     
+    db = Any()
     whitelist = Set(config=True,
         help="""Username whitelist.
         

jupyterhub/orm.py

@@ -306,6 +306,7 @@ class User(Base):
             config=config,
             user=self,
             hub=hub,
+            db=db,
         )
         # we are starting a new server, make sure it doesn't restore state
         spawner.clear_state()

jupyterhub/spawner.py

@@ -37,6 +37,7 @@ class Spawner(LoggingConfigurable):
     - poll
     """
     
+    db = Any()
     user = Any()
     hub = Any()
     api_token = Unicode()

jupyterhub/tests/test_spawner.py

@@ -39,7 +39,7 @@ def new_spawner(db, **kwargs):
     kwargs.setdefault('INTERRUPT_TIMEOUT', 1)
     kwargs.setdefault('TERM_TIMEOUT', 1)
     kwargs.setdefault('KILL_TIMEOUT', 1)
-    return LocalProcessSpawner(**kwargs)
+    return LocalProcessSpawner(db=db, **kwargs)
 
 
 def test_spawner(db, io_loop):