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3077343739
In in the module __init__.py we print an init message (which type of LinkBase class is providing the SimLink). However in __init__.py we tend to have only platform independed code but the message string can already be categorized as platform depened. Let's put the init message into the constructor of the concrete classes of LinkBase. Related: OS#6210 Change-Id: I0a6dd7deb79a5f3e42b29094a1cf2535075fa430
99 lines
3.1 KiB
Python
99 lines
3.1 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 typing import Optional
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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, Hexstr, ResTuple
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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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print("Using PC/SC reader interface")
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r = readers()
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if reader_number >= len(r):
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raise ReaderError('No reader found for number %d' % reader_number)
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self._reader = r[reader_number]
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self._con = self._reader.createConnection()
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self._reader_number = reader_number
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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: Optional[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) -> Hexstr:
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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: Hexstr) -> ResTuple:
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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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def __str__(self) -> str:
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return "PCSC:%u[%s]" % (self._reader_number, self._reader)
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