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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# SPDX-License-Identifier: GPL-3.0-or-later
# Relevant API docs:
# https://pypi.org/project/paho-mqtt/
# https://lazka.github.io/pgi-docs/#Notify-0.7
# https://lazka.github.io/pgi-docs/#Secret-1
# https://lazka.github.io/pgi-docs/#GLib-2.0
# https://dbus.freedesktop.org/doc/dbus-python/dbus.mainloop.html
import argparse
import configparser
import re
import signal
import sys
import time
import paho.mqtt.client as mqtt
import gi
gi.require_version("Notify", "0.7")
gi.require_version("Secret", "1")
from gi.repository import GLib, Notify, Secret
from dbus.mainloop.glib import DBusGMainLoop
DBusGMainLoop(set_as_default=True)
chan_msg = re.compile(r"\[(?P<channel>#.*?)\]\n<\s*(?P<nick>.*?)> \| (?P<msg>.*)")
priv_msg = re.compile(r"\(PM: (?P<nick>.*?)\)\n(?P<msg>.*)")
subj_fmt = re.compile(r"IRC message (on|from) (?P<key>.*)")
notification_map = {}
class Signaler:
def __init__(self, loop):
self.loop = loop
def handler(self, *_):
self.loop.quit()
def on_connect(client, userdata, flags, reason_code, properties):
print("Connected")
# Subscribing in on_connect() means that if we lose the connection and
# reconnect then subscriptions will be renewed.
client.subscribe(userdata)
def on_close(notification):
key = ""
if (m := subj_fmt.match(notification.props.summary)) is not None:
key = m.group("key")
if key in notification_map:
for i in notification_map[key]:
if i is not notification:
i.close()
del notification_map[key]
def on_message(client, userdata, msg):
icon = "/usr/share/icons/HighContrast/scalable/apps-extra/internet-group-chat.svg"
message = msg.payload.decode("utf-8")
if (m := re.match(chan_msg, message)) is not None:
subject = "IRC message on {}".format(m.group("channel"))
body = "<{}> {}".format(m.group("nick"), m.group("msg"))
key = m.group("channel")
if (m := re.match(priv_msg, message)) is not None:
subject = "IRC message from {}".format(m.group("nick"))
body = "<{}> {}".format(m.group("nick"), m.group("msg"))
key = m.group("nick")
else:
subject = "IRC"
body = message
key = ""
if key not in notification_map or len(notification_map[key]) == 1:
n = Notify.Notification.new(subject, body, icon)
n.set_category("im.received")
n.connect("closed", on_close)
if key not in notification_map:
notification_map[key] = [n]
else:
notification_map[key].append(n)
else:
n = notification_map[key][1]
n.update(subject, body, icon)
try:
n.show()
except GLib.GError as e:
print("Failed to show notification: {}".format(e), file=sys.stderr)
sys.exit(-1)
def on_disconnect(client, userdata, flags, reason_code, properties):
print("Disconnected")
def password(user, host):
# Insert password with secret-tool(1). E.g.,
# secret-tool store --label="mqtts://example.com" user myuser service mqtt host example.com
schema = Secret.Schema.new(
"org.freedesktop.Secret.Generic",
Secret.SchemaFlags.NONE,
{
"user": Secret.SchemaAttributeType.STRING,
"service": Secret.SchemaAttributeType.STRING,
"host": Secret.SchemaAttributeType.STRING,
},
)
attributes = {
"user": user,
"service": "mqtt",
"host": host,
}
while (pw := Secret.password_lookup_sync(schema, attributes, None)) is None:
time.sleep(5)
return pw
def config(filename):
try:
with open(filename) as file:
config = configparser.ConfigParser()
config.read_file(file)
cfg = config[configparser.DEFAULTSECT]
broker = cfg["broker"]
topic = cfg["topic"]
port = int(cfg["port"])
user = cfg["user"]
return user, broker, port, topic
except:
print("Failed to parse {}".format(filename), file=sys.stderr)
sys.exit(-1)
def main(argv):
loop = GLib.MainLoop()
do = Signaler(loop)
signal.signal(signal.SIGINT, do.handler)
signal.signal(signal.SIGTERM, do.handler)
parser = argparse.ArgumentParser()
parser.add_argument(
"-c",
"--config",
help="configuration file",
type=argparse.FileType("r"),
required=True,
)
args = parser.parse_args()
user, broker, port, topic = config(args.config.name)
Notify.init("MQTT to Notify bridge")
client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2, userdata=topic)
client.tls_set()
client.username_pw_set(user, password(user, broker))
client.on_connect = on_connect
client.on_message = on_message
client.on_disconnect = on_disconnect
client.connect_async(broker, port, 60)
client.loop_start()
loop.run()
client.loop_stop()
client.disconnect()
Notify.uninit()
if __name__ == "__main__":
main(sys.argv)
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