domotz-remote-pawn/src/udp/utils.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 31/03/16.
 */

var factory = function(dgram) {

    return {
        createSocket: function() {
            return dgram.createSocket('udp4');
        },
        send: function (socket, buffer, host, port, burst) {
            for (var i = 0; i < burst; i++) {
                socket.send(buffer, 0, buffer.length, port, host, function () {
                    console.silly('Message %s sent to %s:%d', buffer.toString(),
                        host, port);
                });
            }
            console.silly(buffer.length + ' bytes sent ' + i + ' times');
        },
        decode: function (filter) {
            var hexString = filter.replace(/\s+/g, '');
            console.silly("Filtering by " + hexString);
            return Buffer(hexString, 'hex');
        },
        logListening: function(socket) {
            var address = socket.address();
            var ip = address.address, port = address.port;
            console.verbose('UDP Socket bound on ' + ip + ":" + port);
        },
        logClose: function(type) {
            console.verbose('UDP %s closed', type);
        },
        logMessage: function (msg, rinfo) {
            console.debug('Received %d bytes from %s:%d', msg.length, rinfo.address, rinfo.port);
            console.verbose('Message: %s', msg.toString());
        },
        logError: function (error) {
            console.error('UDP error - Error: {}' + error.message);
            console.error(error.stack);
        }
    };
};

module.exports.factory = factory;