mirror of https://github.com/Yubico/python-fido2
62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
# Copyright (c) 2018 Yubico AB
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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import abc
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import six
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if six.PY2:
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@six.add_metaclass(abc.ABCMeta)
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class ABC(object):
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pass
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abc.ABC = ABC
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abc.abstractclassmethod = abc.abstractmethod
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class CtapDevice(abc.ABC):
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"""
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CTAP-capable device. Subclasses of this should implement call, as well as
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list_devices, which should return a generator over discoverable devices.
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"""
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@abc.abstractmethod
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def call(self, cmd, data=b'', event=None):
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"""
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cmd is the integer value of the command.
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data is the binary string value of the payload.
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event is an instance of threading.Event which can be used to cancel the
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invocation.
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"""
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pass
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@abc.abstractclassmethod
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def list_devices(cls):
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"""
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Generates instances of cls for discoverable devices.
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"""
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pass
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