Add initial Bluetooth discovery script (issue #18)

openbose/scan.py

@@ -0,0 +1,45 @@
+import gi
+
+from gi.repository import GLib
+
+import dbus
+import dbus.mainloop.glib
+
+
+dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+system_bus = dbus.SystemBus()
+
+
+BLUEZ_BUS = "org.bluez"
+OBJECT_MANAGER_INTERFACE = "org.freedesktop.DBus.ObjectManager"
+PROPERTIES_INTERFACE = "org.freedesktop.DBus.Properties"
+DEVICE_INTERFACE = "org.bluez.Device1"
+ADAPTER_INTERFACE = "org.bluez.Adapter1"
+
+
+def properties_changed(interface, properties, removed_properties, object_path):
+    if interface == DEVICE_INTERFACE:
+        print(object_path, properties.get("ManufacturerData"))
+
+
+def interfaces_added(object_path, interfaces):
+    if DEVICE_INTERFACE in interfaces:
+        device_properties = interfaces[DEVICE_INTERFACE]
+        print(object_path, device_properties.get("ManufacturerData"))
+
+
+def property_changed(name, value):
+    if name == "Discovering" and not value:
+        main_loop.quit()
+
+
+system_bus.add_signal_receiver(properties_changed, "PropertiesChanged", PROPERTIES_INTERFACE, BLUEZ_BUS, arg0=DEVICE_INTERFACE, path_keyword="object_path")
+system_bus.add_signal_receiver(interfaces_added, "InterfacesAdded", OBJECT_MANAGER_INTERFACE, BLUEZ_BUS)
+
+system_bus.add_signal_receiver(property_changed, "PropertyChanged", ADAPTER_INTERFACE)
+
+adapter = dbus.Interface(system_bus.get_object(BLUEZ_BUS, "/org/bluez/hci0"), ADAPTER_INTERFACE)
+adapter.StartDiscovery()
+
+main_loop = GLib.MainLoop()
+main_loop.run()