Connect to the first available local proxy through torsocks

gimmetor.py

#!/usr/bin/env python3

"""
Usage: $(gimmetor.py)
"""

from ipaddress import ip_network
import concurrent.futures
import subprocess
import socket
import sys
import re

def get_local_network() -> str:
    result = subprocess.run(["ip", "route"], capture_output=True, text=True)
    match = re.search(r"(\d+\.\d+\.\d+)\.\d+/\d+", result.stdout)
    return f"{match.group(1)}.0/24"

def check_port(ip: str, port: int) -> bool:
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
        sock.settimeout(0.05)
        return sock.connect_ex((ip, port)) == 0

def get_proxy() -> str:
    net = get_local_network()
    net = ip_network(net, strict=False)

    with concurrent.futures.ThreadPoolExecutor(max_workers=255) as executor:
        future_to_ip = {executor.submit(check_port, str(ip), 9050): ip for ip in net.hosts()}

        for future in concurrent.futures.as_completed(future_to_ip):
            if not future.result(): continue

            ip = future_to_ip[future]
            return str(ip)

    sys.exit(1)

proxy = get_proxy()
print(f". torsocks -a {proxy} on")