In authnz manager, user_id can be string & should be casted to int.

lib/galaxy/authnz/managers.py

@@ -1,7 +1,11 @@
 
 import copy
 import importlib
+import json
 import logging
+import os
+import random
+import string
 import xml.etree.ElementTree as ET
 from xml.etree.ElementTree import ParseError
 
@@ -13,6 +17,7 @@
 
 from galaxy import exceptions
 from galaxy import model
+from galaxy.util.object_wrapper import SafeStringWrapper
 from .psa_authnz import (
     BACKENDS_NAME,
     on_the_fly_config,
@@ -176,6 +181,8 @@ def try_get_authz_config(sa_session, user_id, authz_id):
         :rtype :            model.CloudAuthz
         :return:            a cloudauthz configuration.
         """
+        if isinstance(user_id, SafeStringWrapper):
+            user_id = int(user_id)
         qres = sa_session.query(model.CloudAuthz).get(authz_id)
         if qres is None:
             raise exceptions.ObjectNotFound("An authorization configuration with given ID not found.")
@@ -260,6 +267,8 @@ def get_cloud_access_credentials(self, cloudauthz, sa_session, user_id, request=
                             resource provider. See CloudAuthz (https://github.com/galaxyproject/cloudauthz)
                             for details on the content of this dictionary.
         """
+        if isinstance(user_id, SafeStringWrapper):
+            user_id = int(user_id)
         config = self._extend_cloudauthz_config(cloudauthz, request, sa_session, user_id)
         try:
             ca = CloudAuthz()