Remove unnecessary calls to the database for user and permission metadata.

auth/auth.py

@@ -7,6 +7,7 @@ from base64 import b64decode
 
 from data import model
 from app import app
+from permissions import QuayDeferredPermissionUser
 
 from util.names import parse_namespace_repository
 
@@ -40,8 +41,9 @@ def process_basic_auth(auth):
     ctx = _request_ctx_stack.top
     ctx.authenticated_user = authenticated
 
-    identity_changed.send(app, identity=Identity(authenticated.username,
-                                                 'username'))
+    new_identity = QuayDeferredPermissionUser(authenticated.username,
+                                              'username')
+    identity_changed.send(app, identity=new_identity)
     return
 
   # We weren't able to authenticate via basic auth.