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#!/usr/bin/env python
# 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 argparse
import sys
import time
from typing import NoReturn, Optional
from signedjson.key import encode_verify_key_base64, get_verify_key, read_signing_keys
from signedjson.types import VerifyKey
def exit(status: int = 0, message: Optional[str] = None) -> NoReturn:
if message:
print(message, file=sys.stderr)
sys.exit(status)
def format_plain(public_key: VerifyKey) -> None:
print(
"%s:%s %s"
% (
public_key.alg,
public_key.version,
encode_verify_key_base64(public_key),
)
)
def format_for_config(public_key: VerifyKey, expiry_ts: int) -> None:
print(
' "%s:%s": { key: "%s", expired_ts: %i }'
% (
public_key.alg,
public_key.version,
encode_verify_key_base64(public_key),
expiry_ts,
)
)
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument(
"key_file",
nargs="+",
type=argparse.FileType("r"),
help="The key file to read",
)
parser.add_argument(
"-x",
action="store_true",
dest="for_config",
help="format the output for inclusion in the old_signing_keys config setting",
)
parser.add_argument(
"--expiry-ts",
type=int,
default=int(time.time() * 1000) + 6 * 3600000,
help=(
"The expiry time to use for -x, in milliseconds since 1970. The default "
"is (now+6h)."
),
)
args = parser.parse_args()
formatter = (
(lambda k: format_for_config(k, args.expiry_ts))
if args.for_config
else format_plain
)
for file in args.key_file:
try:
res = read_signing_keys(file)
except Exception as e:
exit(
status=1,
message="Error reading key from file %s: %s %s"
% (file.name, type(e), e),
)
for key in res:
formatter(get_verify_key(key))
if __name__ == "__main__":
main()
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