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CardService.py
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CardService.py
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"""Card service abstract class.
A card service is a class providings specific smart card functionality,
e.g. a GSM file system or an Open Platform loader. CardService is an
abstract class from which concrete card services are derived. A concrete
card service is almost always smart card operating system specific.
The card service performs its specific smart card functionnality by accessing
the smartcard with a CardConnection.
__author__ = "http:https://www.gemalto.com"
Copyright 2001-2012 gemalto
Author: Jean-Daniel Aussel, mailto:[email protected]
This file is part of pyscard.
pyscard is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
pyscard is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with pyscard; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""
from smartcard.scard import *
class CardService(object):
"""Card service abstract class.
Known subclasses: smartcard.PassThruCardService
"""
def __init__(self, connection, cardname=None):
"""Construct a new card service and bind to a smart card in a reader.
connection: the CardConnection used to access the smart card
"""
self.connection = connection
self.cardname = cardname
def __del__(self):
"""Destructor. Disconnect card and destroy card service resources."""
self.connection.disconnect()
def supports(cardname):
pass
supports = staticmethod(supports)
if __name__ == '__main__':
"""Small sample illustrating the use of CardService."""
SELECT = [0xA0, 0xA4, 0x00, 0x00, 0x02]
DF_TELECOM = [0x7F, 0x10]
from smartcard.System import readers
cc = readers()[0].createConnection()
cs = CardService(cc)
cs.connection.connect()
data, sw1, sw2 = cs.connection.transmit(SELECT + DF_TELECOM)
print "%X %X" % (sw1, sw2)
cs.connection.disconnect()