shyft-mike commented on code in PR #28846:
URL: https://github.com/apache/airflow/pull/28846#discussion_r1091102239


##########
airflow/www/extensions/init_cache.py:
##########
@@ -0,0 +1,52 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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 __future__ import annotations
+
+import hashlib
+from tempfile import gettempdir
+
+from flask_caching import Cache
+
+from airflow.configuration import conf
+from airflow.exceptions import AirflowConfigException
+
+HASH_METHOD_MAPPING = {
+    "md5": hashlib.md5,
+    "sha1": hashlib.sha1,
+    "sha224": hashlib.sha224,
+    "sha256": hashlib.sha256,
+    "sha384": hashlib.sha384,
+    "sha512": hashlib.sha512,
+}

Review Comment:
   Hmm unless I'm misunderstanding what you mean, this is needed because the 
flask_caching config takes a reference to the hashlib function itself. I was 
also recommended against `hashlib.new()` since it is much less performant.



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