domotz-remote-pawn/src/commands/network/onvif/snapshot.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 <iacopo@domotz.com> on 20/03/2018.
 */

var utils = require('./utils');
var request = require('request');

var onvifSnapshot = function (message, resourceLocator) {
    var onvif = resourceLocator.onvif;
    var baseConsole = resourceLocator.log.decorateLogs();

    return {
        execute: function (callback) {
            var username = message.payload.username;
            var password = message.payload.password;
            var port = message.payload.port || utils.defaultPort;
            var hostname = message.payload.host;
            var myConsole = baseConsole.decorate(+hostname + ':' + String(port));

            new onvif.Cam(
                {
                    username: username,
                    password: password,
                    hostname: hostname,
                    port: port,
                },
                function (err) {
                    if (err) {
                        callback(null, err);
                        return;
                    }
                    this.getSnapshotUri(function (err, data) {
                        if (err) {
                            callback(null, err);
                        } else {
                            myConsole.debug('Getting image from uri: %s', data.uri);
                            request.get(
                                {
                                    uri: data.uri,
                                    auth: {
                                        user: username,
                                        pass: password,
                                        sendImmediately: false,
                                    },
                                    encoding: 'binary',
                                },
                                function (err, data) {
                                    if (data.statusCode === 200) {
                                        callback(data.body, null, {
                                            asBinary: true,
                                            'content-type': data.headers['content-type'],
                                        });
                                    } else {
                                        callback(null, err);
                                    }
                                }
                            );
                        }
                    });
                }
            );
        },
        describe: function () {
            return message.correlationId + ' - Get ONVIF Snapshot from host: ' + message.payload.host + ':' + message.payload.port;
        },
    };
};

module.exports.command = onvifSnapshot;