domotz-remote-pawn/src/network_tools/ip_conflict/parser.js

Domotz Agent

/** This file is part of Domotz Agent.
 * Copyright (C)  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/>.
 **/
/**
 *
 * Created by NI Team <dev@domotz.com> on 14/07/2023.
 */

module.exports = function (resourceLocator) {
    var myConsole = resourceLocator.log.decorateLogs();
    var lodash = resourceLocator.lodash;

    function getSolvedConflicts(currentConflicts, previousConflicts) {
        var uniqueElements = {};
        var solvedConflicts = [];

        lodash.forOwn(currentConflicts, function (currentConflict) {
            uniqueElements[JSON.stringify(currentConflict)] = true;
        });

        lodash.forOwn(previousConflicts, function (previousConflict) {
            if (!uniqueElements.hasOwnProperty(JSON.stringify(previousConflict))) {
                solvedConflicts.push(previousConflict);
            }
        });

        return solvedConflicts;
    }

    function getActiveConflicts(conflicts) {
        return conflicts
            .filter(function (conflict) {
                return conflict !== null;
            })
            .sort();
    }

    function parseOutput(data) {
        //  Starting Nmap 7.92 ( https://nmap.org ) at 2023-07-17 14:50 CEST
        //  Pre-scan script results:
        //  |_ip-conflict: {"mac_addresses": ["e4:ce:02:10:7d:86", "e4:ce:02:10:7d:87"]}
        //  WARNING: No targets were specified, so 0 hosts scanned.
        //  Nmap done: 0 IP addresses (0 hosts up) scanned in 2.47 seconds
        const regex = /\|_ip-conflict: (.*)/g;
        const match = regex.exec(data);

        if (match && match[1]) {
            var result = JSON.parse(match[1]);
            var macAddresses = _removeDuplicatesAndSort(result.mac_addresses);

            if (macAddresses.length > 1) {
                myConsole.debug('Conflicting mac addresses: %s ', JSON.stringify(result));
                return macAddresses;
            }
        } else {
            myConsole.debug('No match found');
        }
        return [];
    }

    function _removeDuplicatesAndSort(macAddresses) {
        var uniqueArray = [];

        lodash.forOwn(macAddresses, function (macAddress) {
            if (uniqueArray.indexOf(macAddress) === -1) {
                uniqueArray.push(macAddress);
            }
        });

        return uniqueArray.sort();
    }

    return {
        parseOutput: parseOutput,
        getSolvedConflicts: getSolvedConflicts,
        getActiveConflicts: getActiveConflicts,
    };
};