iStat Pro Widget 4.9.2: Restore External IP Support

core-getExtIP.js

/**
 * Get your current external IP address for the iStat Pro dashboard widget.
 *
 * For those of us who refuse to let go of the iStat Pro dashboard widget (version 4.9.2),
 * this function is located inside of `~/Library/Widgets/iStat\ Pro.wdgt/scripts/core.js`
 * beginning at line 243. As of when this Gist was published, Bjango killed the endpoint
 * that powered their external IP address service. Thankfully, there's
 * {@link https://www.ipify.org}, a free public IP API endpoint. Simply copy and paste the
 * function below over the predecessor inside the core.js file and the IP service is
 * restored (once again).
 *
 * @link https://mac.softpedia.com/get/Dashboard-Widgets/Status-Info/iStat-pro.shtml
 *
 * @author Bjango
 * @link https://bjango.com
 * @version 4.9.2
 */
function getExtIP(){
    ipURL = 'https://api.ipify.org?format=json';
    ipConnection = new XMLHttpRequest();
    ipConnection.open("GET", ipURL, true);
    ipConnection.onreadystatechange = function() {
        if(ipConnection.readyState == 4 && ipConnection.responseText != null && ipConnection.responseText.length > 0) {
            extIP = JSON.parse(ipConnection.responseText);
            extIP = extIP.ip;
            if(extIP.length < 20 && ipConnection.status == 200 && extIP.match(/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/)){
                e("wide_extip").innerHTML = extIP;
                e("tall_extip").innerHTML = extIP;
                valid_ip = true;
            } else {
                valid_ip = false;
                e("wide_extip").innerHTML = "Unknown";
                e("tall_extip").innerHTML = "Unknown";
            }
        }
    }
    ipConnection.send(null);
}