Change SSID and Preshared Key in LCOS

This script, assigned to a newtork, overrides a specific WiFi networks SSID and Preshared Key with the variables

• context.vars.SSID
• context.vars.WPAKey

The selected WiFi that will be overridden is SSID_TO_CHANGE.

/**
 * @param {Config} config
 * @param {Context} context
 * Do not edit this comment or parameter types. Required for code suggestions
*/
exports.main = function (config, context) {

    // Step 1: obtain _single_ ssid reference
    var ssid = context.network.ssids["SSID_TO_CHANGE"];

    if (!ssid) {
        config.abort("SSID missing");
    }

    if (!context.vars.SSID) {
        config.abort("variable SSID not set");
    }

    if (!context.vars.WPAKey) {
        config.abort("variable WPAKey not set");
    }

    // Step 2: collect iface numbers
    var ifcNumbers = [];
    for (var i = 0; i < ssid.ifcNumber.length; i++) {
        ifcNumbers.push(ssid.ifcNumber[i]);
    }

    // Step 3: change wifi/pass using collected iface numbers
    var wlantable = config.getTableByOid("1.2.23.20.1");
    var encrtable = config.getTableByOid("1.2.23.20.3");
    for (var i = 0; i < ifcNumbers.length; i++) {

        var rowWlan = wlantable.getFirstRowByOid("1", ifcNumbers[i]);
        if (rowWlan) {
            rowWlan.setByOid("2", context.vars.SSID);
            wlantable.addOrMerge(rowWlan);
        }

        var rowEncr = encrtable.getFirstRowByOid("1", ifcNumbers[i]);
        if (rowEncr) {
            rowEncr.setByOid("6", "" + context.vars.WPAKey);
            encrtable.addOrMerge(rowEncr);
        }
    }
};