#!/usr/bin/env python
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2010 - 2012 Red Hat, Inc.
#

#
# This example starts or stops a wifi hotspot
#
# Configuration settings are described at
# https://developer.gnome.org/NetworkManager/1.0/ref-settings.html
#

import dbus, sys, time

our_uuid = "2b0d0f1d-b79d-43af-bde1-71744625642e"

s_con = dbus.Dictionary(
    {"type": "802-11-wireless", "uuid": our_uuid, "id": "Test Hotspot"}
)

s_wifi = dbus.Dictionary(
    {
        "ssid": dbus.ByteArray("My Hotspot".encode("utf-8")),
        "mode": "ap",
        "band": "bg",
        "channel": dbus.UInt32(1),
    }
)

s_wsec = dbus.Dictionary({"key-mgmt": "wpa-psk", "psk": "great password"})

s_ip4 = dbus.Dictionary({"method": "shared"})
s_ip6 = dbus.Dictionary({"method": "ignore"})

con = dbus.Dictionary(
    {
        "connection": s_con,
        "802-11-wireless": s_wifi,
        "802-11-wireless-security": s_wsec,
        "ipv4": s_ip4,
        "ipv6": s_ip6,
    }
)


def usage():
    print("Usage: %s <ifname> [up|down]" % sys.argv[0])
    sys.exit(0)


bus = dbus.SystemBus()
service_name = "org.freedesktop.NetworkManager"
proxy = bus.get_object(service_name, "/org/freedesktop/NetworkManager/Settings")
settings = dbus.Interface(proxy, "org.freedesktop.NetworkManager.Settings")

if len(sys.argv) != 3:
    usage()

iface = sys.argv[1]
proxy = bus.get_object(service_name, "/org/freedesktop/NetworkManager")
nm = dbus.Interface(proxy, "org.freedesktop.NetworkManager")
devpath = nm.GetDeviceByIpIface(iface)

# Find our existing hotspot connection
connection_path = None
for path in settings.ListConnections():
    proxy = bus.get_object(service_name, path)
    settings_connection = dbus.Interface(
        proxy, "org.freedesktop.NetworkManager.Settings.Connection"
    )
    config = settings_connection.GetSettings()
    if config["connection"]["uuid"] == our_uuid:
        connection_path = path
        break

# If the hotspot connection didn't already exist, add it
if not connection_path:
    connection_path = settings.AddConnection(con)

# Now start or stop the hotspot on the requested device
proxy = bus.get_object(service_name, devpath)
device = dbus.Interface(proxy, "org.freedesktop.NetworkManager.Device")
operation = sys.argv[2]
if operation == "up":
    acpath = nm.ActivateConnection(connection_path, devpath, "/")
    proxy = bus.get_object(service_name, acpath)
    active_props = dbus.Interface(proxy, "org.freedesktop.DBus.Properties")

    # Wait for the hotspot to start up
    start = time.time()
    while time.time() < start + 10:
        state = active_props.Get(
            "org.freedesktop.NetworkManager.Connection.Active", "State"
        )
        if state == 2:  # NM_ACTIVE_CONNECTION_STATE_ACTIVATED
            print("Access point started")
            sys.exit(0)
        time.sleep(1)
    print("Failed to start access point")
elif operation == "down":
    device.Disconnect()
else:
    usage()

sys.exit(0)
