from urllib.parse import urlparse


def tor_control_port():
    try:
        with open(filename, 'r') as file:
            for line in file:
                if line.startswith('PORT='):
                    ipport = line.split('=')[1]

                    parsed = urlparse('//'+ipport)
                    ip = parsed.hostname
                    port = parsed.port

                    return port
    except OSError:
        pass

    return None


filename = '/var/lib/tor/controlport'