Remove kwargs_to_fetch_token

kwargs_to_fetch_token was deprecated and should be
removed in Rocky now.

Change-Id: Ic247efb84c5133449ead6a9864bbd7748e5e74bd

keystonemiddleware/auth_token/__init__.py

@@ -215,7 +215,6 @@ object is stored.
 import binascii
 import copy
 import datetime
-import warnings
 
 from keystoneauth1 import access
 from keystoneauth1 import adapter
@@ -309,12 +308,6 @@ class BaseAuthProtocol(object):
                                    perform.
     """
 
-    # NOTE(jamielennox): Default to True and remove in Queens. This is a
-    # compatibility flag to allow passing **kwargs to fetch_token(). This
-    # is basically to allow compatibility with keystone's override. We will
-    # assume all subclasses are ok with this being True in the Queens release.
-    kwargs_to_fetch_token = False
-
     def __init__(self,
                  app,
                  log=_LOG,
@@ -436,14 +429,7 @@ class BaseAuthProtocol(object):
         # NOTE(edmondsw): strip the token to remove any whitespace that may
         # have been passed along in the header per bug 1689468
         token = token.strip()
-        if self.kwargs_to_fetch_token:
-            data = self.fetch_token(token, **kwargs)
-        else:
-            m = _('Implementations of auth_token must set '
-                  'kwargs_to_fetch_token this will be the required and '
-                  'assumed in Queens.')
-            warnings.warn(m)
-            data = self.fetch_token(token)
+        data = self.fetch_token(token, **kwargs)
 
         try:
             return data, access.create(body=data, auth_token=token)
@@ -549,8 +535,6 @@ class AuthProtocol(BaseAuthProtocol):
     _SIGNING_CERT_FILE_NAME = 'signing_cert.pem'
     _SIGNING_CA_FILE_NAME = 'cacert.pem'
 
-    kwargs_to_fetch_token = True
-
     def __init__(self, app, conf):
         log = logging.getLogger(conf.get('log_name', __name__))
         log.info('Starting Keystone auth_token middleware')

keystonemiddleware/tests/unit/auth_token/test_base_middleware.py

@@ -31,8 +31,6 @@ class FakeApp(object):
 
 class FetchingMiddleware(auth_token.BaseAuthProtocol):
 
-    kwargs_to_fetch_token = True
-
     def __init__(self, app, token_dict={}, **kwargs):
         super(FetchingMiddleware, self).__init__(app, **kwargs)
         self.token_dict = token_dict

releasenotes/notes/remove_kwargs_to_fetch_token-20e3451ed192ab6a.yaml

@@ -0,0 +1,6 @@
+---
+other:
+  - >
+    The ``kwargs_to_fetch_token`` setting was removed from the
+    ``BaseAuthProtocol`` class. Implementations of auth_token now assume kwargs
+    will be passed to the ``fetch_token`` method.