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c91085e744
We had a mixture of tab and 4space based indenting, which is a bad idea. 4space is the standard in python, so convert all our code to that. The result unfortuantely still shoed even more inconsistencies, so I've decided to run autopep8 on the entire code base. Change-Id: I4a4b1b444a2f43fab05fc5d2c8a7dd6ddecb5f07
92 lines
2.8 KiB
Python
92 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2009-2010 Sylvain Munaut <tnt@246tNt.com>
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# Copyright (C) 2010 Harald Welte <laforge@gnumonks.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from smartcard.CardConnection import CardConnection
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from smartcard.CardRequest import CardRequest
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from smartcard.Exceptions import NoCardException, CardRequestTimeoutException, CardConnectionException, CardConnectionException
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from smartcard.System import readers
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from pySim.exceptions import NoCardError, ProtocolError, ReaderError
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from pySim.transport import LinkBase
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from pySim.utils import h2i, i2h
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class PcscSimLink(LinkBase):
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""" pySim: PCSC reader transport link."""
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def __init__(self, reader_number: int = 0, **kwargs):
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super().__init__(**kwargs)
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r = readers()
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if reader_number >= len(r):
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raise ReaderError
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self._reader = r[reader_number]
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self._con = self._reader.createConnection()
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def __del__(self):
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try:
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# FIXME: this causes multiple warnings in Python 3.5.3
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self._con.disconnect()
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except:
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pass
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return
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def wait_for_card(self, timeout: int = None, newcardonly: bool = False):
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cr = CardRequest(readers=[self._reader],
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timeout=timeout, newcardonly=newcardonly)
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try:
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cr.waitforcard()
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except CardRequestTimeoutException:
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raise NoCardError()
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self.connect()
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def connect(self):
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try:
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# To avoid leakage of resources, make sure the reader
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# is disconnected
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self.disconnect()
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# Explicitly select T=0 communication protocol
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self._con.connect(CardConnection.T0_protocol)
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except CardConnectionException:
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raise ProtocolError()
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except NoCardException:
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raise NoCardError()
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def get_atr(self):
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return self._con.getATR()
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def disconnect(self):
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self._con.disconnect()
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def reset_card(self):
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self.disconnect()
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self.connect()
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return 1
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def _send_apdu_raw(self, pdu):
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apdu = h2i(pdu)
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data, sw1, sw2 = self._con.transmit(apdu)
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sw = [sw1, sw2]
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# Return value
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return i2h(data), i2h(sw)
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