D-Bus tool to send PC/SC events as D-Bus events.

Thanks to Florian Echtler
http:https://old.nabble.com/Re%3A-DBus-signalling-in-pcsc-lite--p32401088.html


git-svn-id: svn:https://svn.debian.org/svn/pcsclite/trunk/contrib@6020 0ce88b0d-b2fd-0310-8134-9614164e65ea

dbus/README

@@ -0,0 +1,3 @@
+No client is provided yet. Use dbus-monitor as a client for now
+
+Ludovic Rousseau

dbus/pcsc_watcher.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+
+"""
+ pcsc-watcher.py: send PC/SC events as DBus events
+ Copyright (C) 2011 Florian "floe" Echtler <[email protected]>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http:https://www.gnu.org/licenses/>.
+"""
+
+import gobject
+
+import dbus
+import dbus.service
+
+from dbus.mainloop.glib import DBusGMainLoop
+
+from smartcard.CardMonitoring import *
+from smartcard.util import *
+
+
+# dbus stuff
+
+service = None
+
+interface = "org.debian.alioth.pcsclite" # also used as bus name
+path = "/org/debian/alioth/pcsclite/reader0/slot0"
+
+
+class PCSC_DBus_Service(dbus.service.Object):
+ """ very simple DBus service class with one signal """
+ def __init__(self, object_path):
+ bus_name = dbus.service.BusName(interface, bus=dbus.SessionBus())
+ dbus.service.Object.__init__(self, bus_name, object_path)
+
+ @dbus.service.signal(interface)
+ def CardPresenceChanged(self, atr, added):
+ pass
+
+
+# smartcard stuff
+
+class PCSC_Card_Observer(CardObserver):
+ """ simple card observer class which calls the DBus service """
+ def update(self, observable, (addedcards, removedcards)):
+ for card in addedcards:
+ service.CardPresenceChanged(toHexString(card.atr), True)
+ for card in removedcards:
+ service.CardPresenceChanged(toHexString(card.atr), False)
+
+
+# main
+
+DBusGMainLoop(set_as_default=True)
+gobject.threads_init() # very important to avoid starving the PCSC thread
+
+service = PCSC_DBus_Service(path)
+
+cardmonitor = CardMonitor()
+cardobserver = PCSC_Card_Observer()
+cardmonitor.addObserver(cardobserver)
+
+gobject.MainLoop().run()