domotz-remote-pawn/src/events/handler/bigNetworksScan.js

Domotz Agent

/** This file is part of Domotz Agent.
 * Copyright (C) 2021  Domotz Ltd
 *
 * Domotz Agent is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Domotz Agent is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Domotz Agent.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This event handler activates the BigNetwork nmap discovery.
 *
 * It is executed periodically, in order to assure the BigNetwork scan is
 * running.
 *
 */

var LOG_NAME = 'HANDLER - (BIG_NETWORK_SCAN)';

var handler = function (resourceLocator) {
    var myConsole = resourceLocator.log.decorateLogs(LOG_NAME);
    var bigNetworkScanner = resourceLocator.discovery.bigNetworkScanner;
    var hostInfo = resourceLocator.discovery.host;

    if (resourceLocator.settingsManager.isBroadcastDiscoveryDisabled()) {
        myConsole.info('Broadcast discovery disabled, BigNetwork scan skipped');
        return;
    }

    if (resourceLocator.emergencyNetworkRestore.isEmergencyInterfaceEnabled()) {
        myConsole.info('Big Network Discovery skipped for emergency interface');
        return;
    }

    var interfaces = hostInfo.getInterfacesList();
    var allowed_interfaces = hostInfo.getAllowedInterfacesList();
    for (var name in interfaces) {
        if (!allowed_interfaces.hasOwnProperty(name)) {
            myConsole.info('BigNetwork scan not allowed for interface %s', name);
            continue;
        }
        if (interfaces.hasOwnProperty(name)) {
            var iface = interfaces[name];
            if (bigNetworkScanner.isBigNetwork(iface)) {
                if (!bigNetworkScanner.isScanning(iface, name)) {
                    myConsole.info('Start BigNetwork scan for interface %s - %s/%s', name, iface.ip, iface.netmask);
                } else {
                    myConsole.info('Checking BigNetwork scan for interface %s - %s/%s is running', name, iface.ip, iface.netmask);
                }
                bigNetworkScanner.keepScanning(iface, name);
            }
        }
    }
};

module.exports.handler = handler;