TMSS-2658: Make sure we have a websocket token also for users who previously logged in to TMSS

SAS/TMSS/backend/src/tmss/authentication_backends.py

@@ -75,6 +75,8 @@ class TMSSOIDCAuthenticationBackend(OIDCAuthenticationBackend):
 
     def update_user(self, user, claims):
         logger.info('update user=%s claims=%s' % (user, claims))
+        if not Token.objects.filter(user=user).first():
+            Token.objects.create(user=user)  # required for websockets
         self._set_user_project_roles_from_claims(user, claims)
         self._set_user_system_roles_from_claims(user, claims)
         return user