Pass on desktop notifications to Emacs

emacs-notifications.py

#!/usr/bin/python
# Pass on desktop notifications to Emacs.
# Based on https://askubuntu.com/questions/89279/listening-to-incoming-libnotify-notifications-using-dbus/451402#451402

import glib
import dbus
from dbus.mainloop.glib import DBusGMainLoop
from subprocess import call

# [dbus.String(u'theapp'), dbus.UInt32(0L), dbus.String(u'icon'), dbus.String(u'summary'), dbus.String(u'body'), dbus.Array([], signature=dbus.Signature('s')), dbus.Dictionary({dbus.String(u'category'): dbus.String(u'category', variant_level=1), dbus.String(u'urgency'): dbus.Byte(0, variant_level=1)}, signature=dbus.Signature('sv')), dbus.Int32(-1)]


def escape(string):
    return string.replace('\\', '\\\\').replace('"', r'\"')

def notifications(bus, message):
    args = message.get_args_list()
    try:
        app, _, icon, summary, body, _, _, _ = args
    except Exception as exc:
        return
    elisp_call='(message "{}: {}")'.format(
        escape(summary),
        escape(body))
    
    call(["emacsclient", "-e", elisp_call])
    
        
DBusGMainLoop(set_as_default=True)

bus = dbus.SessionBus()
bus.add_match_string_non_blocking("eavesdrop=true, interface='org.freedesktop.Notifications', member='Notify'")
bus.add_message_filter(notifications)

mainloop = glib.MainLoop()
mainloop.run()