blue-loader-python/ledgerblue/Dongle.py

55 lines
1.4 KiB
Python

"""
*******************************************************************************
* Ledger Blue
* (c) 2016 Ledger
*
* 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.
********************************************************************************
"""
from abc import ABCMeta, abstractmethod
from binascii import hexlify
import sys
TIMEOUT=20000
def hexstr(bstr):
if (sys.version_info.major == 3):
return hexlify(bstr).decode()
if (sys.version_info.major == 2):
return hexlify(bstr)
return "<undecoded APDU<"
class DongleWait(object):
__metaclass__ = ABCMeta
@abstractmethod
def waitFirstResponse(self, timeout):
pass
class Dongle(object):
__metaclass__ = ABCMeta
@abstractmethod
def exchange(self, apdu, timeout=TIMEOUT):
pass
@abstractmethod
def apduMaxDataSize(self):
pass
@abstractmethod
def close(self):
pass
def setWaitImpl(self, waitImpl):
self.waitImpl = waitImpl