Add google-endpoints to third_party/.

third_party/google-endpoints/google/api/auth/__init__.py

+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dogpile import cache
+
+from google.api.auth import suppliers
+from google.api.auth import tokens
+
+
+cache.register_backend("lru_cache", "google.api.auth.caches", "LruBackend")
+
+
+def create_authenticator(issuers_to_provider_ids, issuer_uri_configs):
+  key_uri_supplier = suppliers.KeyUriSupplier(issuer_uri_configs)
+  jwks_supplier = suppliers.JwksSupplier(key_uri_supplier)
+  return tokens.Authenticator(issuers_to_provider_ids, jwks_supplier)