# 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 from hashlib import md5 from secrets import token_urlsafe from typing import Any, Union from uuid import UUID, uuid3 import hashids from flask_babel import gettext as _ from superset.key_value.exceptions import KeyValueParseKeyError from superset.key_value.types import KeyValueFilter, KeyValueResource from superset.utils.core import json_dumps_w_dates HASHIDS_MIN_LENGTH = 11 def random_key() -> str: return token_urlsafe(48) def get_filter(resource: KeyValueResource, key: Union[int, UUID]) -> KeyValueFilter: try: filter_: KeyValueFilter = {"resource": resource.value} if isinstance(key, UUID): filter_["uuid"] = key else: filter_["id"] = key return filter_ except ValueError as ex: raise KeyValueParseKeyError() from ex def encode_permalink_key(key: int, salt: str) -> str: obj = hashids.Hashids(salt, min_length=HASHIDS_MIN_LENGTH) return obj.encode(key) def decode_permalink_id(key: str, salt: str) -> int: obj = hashids.Hashids(salt, min_length=HASHIDS_MIN_LENGTH) ids = obj.decode(key) if len(ids) == 1: return ids[0] raise KeyValueParseKeyError(_("Invalid permalink key")) def get_uuid_namespace(seed: str) -> UUID: md5_obj = md5() md5_obj.update(seed.encode("utf-8")) return UUID(md5_obj.hexdigest()) def get_deterministic_uuid(namespace: str, payload: Any) -> UUID: """Get a deterministic UUID (uuid3) from a salt and a JSON-serializable payload.""" payload_str = json_dumps_w_dates(payload, sort_keys=True) return uuid3(get_uuid_namespace(namespace), payload_str)