domotz-remote-pawn/src/discovery/host/interfaces.js

Domotz Agent

/** This file is part of Domotz Agent.
 * Copyright (C) 2016  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 Tommaso Latini <tommaso@domotz.com> on 18/01/16.
 */

var factory = function (q, proc, nic) {

    function getAsync(info, iface) {
        var cmd = nic.cmd[info](iface);
        var validator = nic.validator[info];
        return proc.exec(cmd, {timeout: 5000}).then(validator);
    }
    
    function getIfacePromise(iface) {
        var promises = [q(iface), getAsync('mac', iface), getAsync('ip', iface), getAsync('netmask', iface)];
        return q.all(promises).spread(nic.getNicDescriptor);
    }

    function getDefaultGatewayAsync() {
        return getAsync('gateway');
    }

    function getInterfacesAsync() {
        return getAsync('interfaces')
                .then(function (list) {
                    var interfacesList = [];
                    list.forEach(function (iface) {
                        console.debug('Recover info for NIC: ' + iface);
                        var asyncInfoPromise = getIfacePromise(iface);
                        interfacesList.push(asyncInfoPromise);
                    });
                    return q.allSettled(interfacesList);
                })
                .then(function (list) {
                    var validInterfaces = [];
                    console.verbose('Get all promise: ' + JSON.stringify(list));
                    list.forEach(function (promise) {
                        if (promise.state === 'fulfilled') {
                            validInterfaces.push(promise.value);
                        }
                    });
                    return validInterfaces;
                });
    }

    return {
        getInterfacesAsync: getInterfacesAsync,
        getDefaultGatewayAsync: getDefaultGatewayAsync
    };

};

module.exports.factory = factory;