domotz-remote-pawn/src/commands/startSshTunnel.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 Iacopo Papalini <ipapalini@domotz.com> on 24/04/15.
 *
 */

var startSshTunnel = function (message, resourceLocator) {

    var ssh = resourceLocator.networkTools.ssh;

    var payload = message.payload;

    var ttl                  = payload.ttl;
    var deviceHost           = payload.device.host;
    var devicePort           = payload.device.port;
    var user                 = payload.server.user;
    var host                 = payload.server.host;
    var port                 = payload.server.port;
    var password             = payload.server.password;
    var privateListeningPort = payload.server.private_listening_port;

    var options = {
        user: user,
        password: password,
        host: host,
        port: port,
        remote_port_forwarding: '0.0.0.0:' + privateListeningPort + ':' + deviceHost + ':' + devicePort,
        disable_remote_command: true,
        ttl: ttl * 1000,
        log_prefix: message.correlationId,
        host_key_checking: 'no',
        server_alive_interval: 60,
        server_alive_count_max: 5
    };

    function describeTunnel() {
        return [user, '@', host, ':', port, ' ', privateListeningPort, ':',
            deviceHost, ':', devicePort].join('');
    }

    return {
        describe: function () {
            // 'cid - startSshTunnel - domotz@zbx01.cloudserver.it:22 8080:192.168.5.64:5000'
            return message.correlationId + ' - startSshTunnel - ' + describeTunnel();
        },
        execute: function (callback) {
            ssh.exec(null, options);
            callback();
        }
    };
};


module.exports.command = startSshTunnel;