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# 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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