pcscdiag.py :  » Mobile » pyscard » pyscard-1.6.10 » smartcard » Examples » wx » pcscdiag » Python Open Source

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Python Open Source » Mobile » pyscard 
pyscard » pyscard 1.6.10 » smartcard » Examples » wx » pcscdiag » pcscdiag.py
#! /usr/bin/env python
"""
Example wxPython application that displays readers and inserted cards ATRs.
This example displays a snapshot of the readers and cards, there is no
automatic refresh of the readers and cards.

__author__ = "http://www.gemalto.com"

Copyright 2001-2010 gemalto
Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com

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
"""

import smartcard.Exceptions
import smartcard.System
import smartcard.util


# wxPython GUI modules (http://www.wxpython.org)
try:
    import wx
except:
    print 'You need wxpython (http://www.wxpython.org) to run this sample from the source code!'
    print 'press a key to continue'
    import msvcrt
    msvcrt.getch()
    import sys
    sys.exit()


def getATR( reader ):
    """Return the ATR of the card inserted into the reader."""
    connection=reader.createConnection()
    atr=""
    try:
        connection.connect()
        atr=smartcard.util.toHexString( connection.getATR() )
        connection.disconnect()
    except smartcard.Exceptions.NoCardException:
        atr="no card inserted"
    return atr


class pcscdiag( wx.Frame ):
    def __init__(self, parent, title):
        wx.Frame.__init__(self, parent, -1, title, size=(600, 400))
        w, h = self.GetClientSizeTuple()
        self.tree = wx.TreeCtrl( self, wx.NewId(), wx.DefaultPosition, (w, h), wx.TR_HAS_BUTTONS | wx.TR_EDIT_LABELS )
        self.InitTree()
        self.OnExpandAll()


    def InitTree( self ):
        self.tree.AddRoot("Readers and ReaderGroups")

        readerNode = self.tree.AppendItem( self.tree.GetRootItem(), "Readers" )
        for reader in smartcard.System.readers():
            childReader = self.tree.AppendItem( readerNode, `reader` )
            childCard = self.tree.AppendItem( childReader, getATR( reader ) )


        readerGroupNode = self.tree.AppendItem( self.tree.GetRootItem(), "Readers Groups")
        for readergroup in smartcard.System.readergroups():
            childReaderGroup = self.tree.AppendItem( readerGroupNode, readergroup )
            readers=smartcard.System.readers( readergroup )
            for reader in readers:
                child = self.tree.AppendItem( childReaderGroup, `reader` )


    def OnExpandAll(self ):
        """ expand all nodes """
        root = self.tree.GetRootItem()
        fn = self.tree.Expand
        self.traverse(root, fn)
        self.tree.Expand( root )

    def traverse(self, traverseroot, function, cookie=0):
        """ recursivly walk tree control """
        if self.tree.ItemHasChildren(traverseroot):
            firstchild, cookie = self.tree.GetFirstChild(traverseroot)
            function(firstchild)
            self.traverse(firstchild, function, cookie)

        child = self.tree.GetNextSibling(traverseroot)
        if child:
            function(child)
            self.traverse(child, function, cookie)


if __name__ == '__main__':
    app = wx.PySimpleApp()
    frame = pcscdiag( None, "Smartcard readers and reader groups" )
    frame.Show()
    app.MainLoop()
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