iwd/test/monitor-iwd

#!/usr/bin/python3

from gi.repository import GLib

import dbus
import dbus.mainloop.glib

_dbus2py = {
	dbus.String : str,
	dbus.UInt32 : int,
	dbus.Int32 : int,
	dbus.Int16 : int,
	dbus.UInt16 : int,
	dbus.UInt64 : int,
	dbus.Int64 : int,
	dbus.Byte : int,
	dbus.Boolean : bool,
	dbus.ByteArray : str,
	dbus.ObjectPath : str
    }

def dbus2py(d):
	t = type(d)
	if t in _dbus2py:
		return _dbus2py[t](d)
	if t is dbus.Dictionary:
		return dict([(dbus2py(k), dbus2py(v)) for k, v in d.items()])
	if t is dbus.Array and d.signature == "y":
		return "".join([chr(b) for b in d])
	if t is dbus.Array or t is list:
		return [dbus2py(v) for v in d]
	if t is dbus.Struct or t is tuple:
		return tuple([dbus2py(v) for v in d])
	return d

def pretty(d):
	d = dbus2py(d)
	t = type(d)

	if t in (dict, tuple, list) and len(d) > 0:
		if t is dict:
			d = ", ".join(["%s = %s" % (k, pretty(v))
					for k, v in d.items()])
			return "{ %s }" % d

		d = " ".join([pretty(e) for e in d])

		if t is tuple:
			return "( %s )" % d

	if t is str:
		return "%s" % d

	return str(d)

def property_changed(name, value, path, interface):
	iface = interface[interface.rfind(".") + 1:]
	print("{%s} [%s] %s = %s" % (iface, path, name, pretty(value)))

if __name__ == '__main__':
	dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)

	bus = dbus.SystemBus()

	bus.add_signal_receiver(property_changed,
				bus_name="net.connman.iwd",
				signal_name = "PropertyChanged",
				path_keyword="path",
				interface_keyword="interface")

	mainloop = GLib.MainLoop()
	mainloop.run()