A simple script that will map wireguard peers to usernames. Assmues that script lives in a directory where subdirectories named after the user contain the users publickey file

active_wg_users.py

 #!/usr/bin/env python3

from subprocess import run
from pathlib import Path as path
from functools import lru_cache

def wg_show(interface, field):
    res = run(["wg", "show", interface, field], check=True, text=True, capture_output=True)
    return map(lambda l: l.split(maxsplit=1), res.stdout.strip().split('\n'))

def get_active_peers(interface):
    pairs = wg_show(interface, "latest-handshakes")
    return [peer for peer, handshake in pairs if handshake != "0"]

@lru_cache
def allowed_ips(interface):
    pairs = wg_show(interface, "allowed-ips")
    return {peer: ip for peer, ip in pairs}

@lru_cache
def peer_map():
    pubkeys = path(__file__).parent.glob("**/publickey")
    return {key.read_text().strip(): key.parent.name for key in pubkeys}

def print_peer_info(peer, interface):
    try:
        print(f"Peer: {peer}")
        print("\tclient:\t", peer_map()[peer])
        print("\tip:\t", allowed_ips(interface)[peer])
    except:
        pass


if __name__ == "__main__":
    for peer in get_active_peers("coreform"):
        print_peer_info(peer, "coreform")

#print(peer_map.cache_info())
#print(allowed_ips.cache_info())