/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/twofactor/utils.py is in python3-cryptography 2.1.4-1ubuntu1.1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | # This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import base64
from six.moves.urllib.parse import quote, urlencode
def _generate_uri(hotp, type_name, account_name, issuer, extra_parameters):
parameters = [
("digits", hotp._length),
("secret", base64.b32encode(hotp._key)),
("algorithm", hotp._algorithm.name.upper()),
]
if issuer is not None:
parameters.append(("issuer", issuer))
parameters.extend(extra_parameters)
uriparts = {
"type": type_name,
"label": ("%s:%s" % (quote(issuer), quote(account_name)) if issuer
else quote(account_name)),
"parameters": urlencode(parameters),
}
return "otpauth://{type}/{label}?{parameters}".format(**uriparts)
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