A script for automatically reconnecting VPN on OS X after connection dropped

vpn_auto_reconnect

#!/usr/bin/env python
import re
from time import sleep
from subprocess import check_output as run

last_print = None


def printf(s, no_repeat=False):
    global last_print
    if no_repeat:
        if last_print != s:
            print s
    else:
        print s
    last_print = s


def get_current_vpn():
    out = run(["/usr/sbin/scutil", "--nc", "list"])
    match = re.search(r'\(Connect.+"(.+)"', out, re.IGNORECASE)
    if match:
        return match.group(1)


def closed_manually():
    out = run(['/usr/bin/tail', '/var/log/ppp.log'])
    return '[TERMINATE]' in out


def connect(vpn):
    return run(['/usr/sbin/scutil', '--nc', 'start', vpn])


def main():
    last_vpn = None
    while True:
        vpn = get_current_vpn()

        if not vpn:
            if not last_vpn:
                printf('No VPN connection...', True)
            elif closed_manually():
                print 'Closed Manually: {}'.format(last_vpn)
                last_vpn = None
            else:
                print 'Connection lost, reconnecting...'
                connect(last_vpn)
        else:
            printf('Monitoring {}'.format(vpn), True)

        last_vpn = vpn or last_vpn
        sleep(1)


if __name__ == '__main__':
    main()

🙌