ISMAIL MASSERAN
106 lines
3.2 KiB
Python
106 lines
3.2 KiB
Python
"""ReaderGroups manages smart card reader in groups.
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__author__ = "gemalto https://www.gemalto.com/"
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Copyright 2001-2012 gemalto
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Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com
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This file is part of pyscard.
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pyscard is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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pyscard 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with pyscard; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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from smartcard.Exceptions import SmartcardException
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from smartcard.ulist import ulist
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# pylint: disable=too-few-public-methods
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class BadReaderGroupException(SmartcardException):
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"""Raised when trying to add an invalid reader group."""
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def __init__(self):
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SmartcardException.__init__(self, "Invalid reader group")
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class innerreadergroups(ulist):
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"""Smartcard readers groups private class.
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The readergroups singleton manages the creation of the unique
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instance of this class.
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"""
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def __init__(self, initlist=None):
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"""Retrieve and store list of reader groups"""
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if initlist is None:
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initlist = self.getreadergroups() or []
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ulist.__init__(self, initlist)
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self.unremovablegroups = []
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def __onadditem__(self, item):
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"""Called when a reader group is added."""
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self.addreadergroup(item)
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def __onremoveitem__(self, item):
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"""Called when a reader group is added."""
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self.removereadergroup(item)
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def __iter__(self):
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return ulist.__iter__(self)
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#
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# abstract methods implemented in subclasses
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#
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def getreadergroups(self):
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"""Returns the list of smartcard reader groups."""
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return []
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def addreadergroup(self, newgroup):
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"""Add a reader group"""
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if not isinstance(newgroup, str):
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raise BadReaderGroupException
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self += newgroup
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def removereadergroup(self, group):
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"""Remove a reader group"""
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if not isinstance(group, str):
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raise BadReaderGroupException
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self.remove(group)
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def addreadertogroup(self, readername, groupname):
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"""Add a reader to a reader group"""
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def removereaderfromgroup(self, readername, groupname):
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"""Remove a reader from a reader group"""
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class readergroups:
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"""ReadersGroups organizes smart card reader as groups."""
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# The single instance of __readergroups
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instance = None
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innerclazz = innerreadergroups
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def __init__(self, initlist=None):
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"""Create a single instance of innerreadergroups on first call"""
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if readergroups.instance is None:
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readergroups.instance = self.innerclazz(initlist)
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# All operators redirected to inner class.
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def __getattr__(self, name):
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return getattr(self.instance, name)
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