Script starting/stoping/restaring tor service

torservice.sh

#!/usr/bin/env zsh

# idea came from here:
# http://blog.felipe-alfaro.com/2015/03/05/tor-with-brew-in-mac-os-x/
# and some ideas from here:
# https://kremalicious.com/simple-tor-setup-on-mac-os-x/
# setting up Sleepwatcher  best described here:
# https://www.kodiakskorner.com/log/258

function usage() {
    echo "usage: $0 start|stop|restart|check";
    exit 1;
}

function tor_service() {
    launchctl $1 /usr/local/opt/tor/homebrew.mxcl.tor.plist
}

function start() {
    echo "$0: starting tor service...";
    # it keeps asking for password. Could be launched as Daemon (with root privileges)
    sudo networksetup -setsocksfirewallproxy $INTERFACE 127.0.0.1 9048 off
    sudo networksetup -setsocksfirewallproxystate $INTERFACE on
    tor_service load
    # merge tor restart action with Sleepwatcher wakeup script
    cat ~/.config/sleepwatcher/*.wakeup > ~/.config/sleepwatcher/wakeup

}

function stop() {
    echo "$0: stopping tor service...";
    sudo networksetup -setsocksfirewallproxystate $INTERFACE off
    tor_service unload
    # null restarting tor from Sleepwatcher wakeup script
    cat ~/.config/sleepwatcher/one.wakeup > ~/.config/sleepwatcher/wakeup
}

function check() {
    echo "$0: checking if tor works...";
    if torsocks curl -s https://check.torproject.org | grep -q 'Congratulations. This browser is configured to use Tor.'; then
        echo 'The tor service works';
    else
        echo 'The tor service does NOT work';
    fi
}

function restart() {
    echo "$0: restarting tor service...";
     tor_service unload
     tor_service load
}

# 'Wi-Fi' or 'Ethernet' or 'Display Ethernet'
INTERFACE=Wi-Fi

case "$1" in
    help|--help|-h)
        usage;;

    start)
        start;;

    stop)
        stop;;

    check)
        check;;

    restart)
        restart;;

    *)
        echo "torservice: error: missing or unrecognized command-line argument";
        usage;;
esac