'tor' wrapper for macOS, that automatically SOCKS proxy on the active network interface before lift off 🚀

onion.sh

#!/usr/bin/env bash

# This is a modified version of @kremalicious's original script (https://kremalicious.com/simple-tor-setup-on-mac-os-x/)
# The script was hardcoded to a specific network interface. Now it's not ¯\_(ツ)_/¯

# Resolve the current network interface identifier

SERVICES=$(networksetup -listnetworkserviceorder | grep 'Hardware Port')

while read line; do
    SNAME=$(echo $line | awk -F  "(, )|(: )|[)]" '{print $2}')
    SDEV=$(echo $line | awk -F  "(, )|(: )|[)]" '{print $4}')
    if [ -n "$SDEV" ]; then
        ifconfig $SDEV 2>/dev/null | grep 'status: active' > /dev/null 2>&1
        if [ "$?" -eq 0 ]; then
            INTERFACE="$SNAME"
        fi
    fi
done <<< "$(echo "$SERVICES")"

# Ask for the administrator password upfront

sudo -v


# Keep-alive: update existing `sudo` time stamp until finished

while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &


function output() {
  echo "$(tput setaf $2)$1$(tput sgr0)"
  echo " "
}

# Trap ctrl-c and call disable_proxy()

function disable_proxy() {
    sudo networksetup -setsocksfirewallproxystate $INTERFACE off
    output "SOCKS proxy disabled.." 136
}

trap disable_proxy INT


# Let's roll

sudo networksetup -setsocksfirewallproxy $INTERFACE 127.0.0.1 9050 off
sudo networksetup -setsocksfirewallproxystate $INTERFACE on

echo " "
output "SOCKS proxy 127.0.0.1:9050 enabled, on the '$INTERFACE' interface.." 136
output "Starting tor 🚀" 64

tor