77 lines
3.2 KiB
Nix
77 lines
3.2 KiB
Nix
{ pkgs, lib, ... }:
|
||
let
|
||
sol = pkgs.writers.writePython3 "shutdown-on-lan.py" {
|
||
libraries = [ pkgs.python313Packages.psutil ];
|
||
flakeIgnore = [ "E302" "E305" "E501" "E701" ];
|
||
} /*py*/ ''
|
||
# https://habr.com/ru/articles/816765/
|
||
|
||
import socket
|
||
import os
|
||
import logging
|
||
import psutil
|
||
from time import sleep
|
||
|
||
WOL_PORT = 9
|
||
|
||
logging.basicConfig(format='%(levelname)s: %(asctime)s %(message)s', level=logging.INFO)
|
||
logger = logging.getLogger(__name__)
|
||
|
||
def get_ip_mac_address() -> tuple:
|
||
ip_addr = mac_addr = None
|
||
|
||
while not ip_addr or not mac_addr or ip_addr == '127.0.0.1':
|
||
nets = psutil.net_if_addrs()
|
||
for net in list(nets.keys())[::-1]:
|
||
if net in ('lo', 'tun0'): continue
|
||
logger.debug(str(net))
|
||
for item in nets[net]:
|
||
# logger.debug(str(item))
|
||
addr = item.address
|
||
logger.debug(addr)
|
||
# В IPv4-адресах разделители - точки
|
||
if '.' in addr:
|
||
ip_addr = addr
|
||
# В MAC-адресах разделители либо тире, либо одинарное двоеточие.
|
||
# Двойное двоеточие - это разделители для адресов IPv6
|
||
elif ('-' in addr or ':' in addr) and '::' not in addr:
|
||
# Приводим MAC-адрес к одному формату. Формат может меняться в зависимости от ОС
|
||
mac_addr = addr.replace(':', '-').upper()
|
||
if not ip_addr or not mac_addr or ip_addr == '127.0.0.1':
|
||
logger.error('Не удалось получить IP или MAC-адрес сетевого интерфейса')
|
||
sleep(10)
|
||
logger.debug(mac_addr)
|
||
return ip_addr, mac_addr
|
||
|
||
def assemble_wol_packet(mac_address: str) -> str:
|
||
return f'{"FF-" * 6}{(mac_address + "-") * 16}'
|
||
|
||
def check_is_wol_packet(raw_bytes: bytes, assembled_wol_packet: str) -> int:
|
||
return '-'.join(f'{byte:02x}' for byte in raw_bytes).upper() + '-' == assembled_wol_packet
|
||
|
||
def run_udp_port_listener(port: int):
|
||
ip_addr, mac_addr = get_ip_mac_address()
|
||
server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
||
server_socket.bind((ip_addr, port))
|
||
logger.info(f'Listening on {ip_addr}:{port}')
|
||
assembled_wol_packet = assemble_wol_packet(mac_addr)
|
||
while True:
|
||
data, _ = server_socket.recvfrom(1024)
|
||
if check_is_wol_packet(data, assembled_wol_packet):
|
||
if os.name == 'posix':
|
||
os.system('shutdown -h now')
|
||
elif os.name == 'nt':
|
||
os.system('shutdown -s -t 0 -f')
|
||
run_udp_port_listener(WOL_PORT)
|
||
'';
|
||
in {
|
||
systemd.services.shutdown-on-lan = {
|
||
enable = true;
|
||
after = [ "network.target" ];
|
||
wantedBy = [ "default.target" ];
|
||
serviceConfig.ExecStart = sol;
|
||
};
|
||
|
||
networking.firewall.allowedUDPPorts = [ 9 ];
|
||
}
|