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-rw-r--r--synapse/secrets.py44
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diff --git a/synapse/secrets.py b/synapse/secrets.py
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-# Copyright 2018 New Vector Ltd
-#
-# 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.
-
-"""
-Injectable secrets module for Synapse.
-
-See https://docs.python.org/3/library/secrets.html#module-secrets for the API
-used in Python 3.6, and the API emulated in Python 2.7.
-"""
-import sys
-
-# secrets is available since python 3.6
-if sys.version_info[0:2] >= (3, 6):
-    import secrets
-
-    class Secrets:
-        def token_bytes(self, nbytes: int = 32) -> bytes:
-            return secrets.token_bytes(nbytes)
-
-        def token_hex(self, nbytes: int = 32) -> str:
-            return secrets.token_hex(nbytes)
-
-
-else:
-    import binascii
-    import os
-
-    class Secrets:
-        def token_bytes(self, nbytes: int = 32) -> bytes:
-            return os.urandom(nbytes)
-
-        def token_hex(self, nbytes: int = 32) -> str:
-            return binascii.hexlify(self.token_bytes(nbytes)).decode("ascii")