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# -*- coding: utf-8 -*-
# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# 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.
import hashlib
import unpaddedbase64
def sha256_and_url_safe_base64(input_text):
"""SHA256 hash an input string, encode the digest as url-safe base64, and
return
:param input_text: string to hash
:type input_text: str
:returns a sha256 hashed and url-safe base64 encoded digest
:rtype: str
"""
digest = hashlib.sha256(input_text.encode()).digest()
return unpaddedbase64.encode_base64(digest, urlsafe=True)
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