auth: Stop mentioning 'global' secrets in API.

appengine/isolate/handlers_endpoints_v1.py

 # Copyright 2014 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 """This module defines Isolate Server frontend url handlers."""
 
 import binascii
 import datetime
 import hashlib
 import logging
@@ skipping 108 matching lines @@
 DEFAULT_LINK_EXPIRATION = datetime.timedelta(hours=4)
 
 
 # messages for generating and validating upload tickets
 UPLOAD_MESSAGES = ['datastore', 'gs']
 
 
 class TokenSigner(auth.TokenKind):
   """Used to create upload tickets."""
   expiration_sec = DEFAULT_LINK_EXPIRATION.total_seconds()
-  secret_key = auth.SecretKey('isolate_upload_token', scope='local')
+  secret_key = auth.SecretKey('isolate_upload_token')
 
 
 @ndb.transactional
 def store_and_enqueue_verify_task(entry, task_queue_host):
   entry.put()
   taskqueue.add(
       url='/internal/taskqueue/verify/%s' % entry.key.id(),
       params={'req': os.environ['REQUEST_LOG_ID']},
       queue_name='verify',
       headers={'Host': task_queue_host},
@@ skipping 401 matching lines @@
       url = '/internal/taskqueue/tag/%s/%s' % (
           collection.namespace.namespace,
           utils.datetime_to_timestamp(utils.utcnow()))
       payload = ''.join(
           binascii.unhexlify(digest.digest) for digest in collection.items)
       return utils.enqueue_task(url, 'tag', payload=payload)
 
 
 def get_routes():
   return endpoints_webapp2.api_routes(IsolateService)