Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

class CSoftwareVersionCheck {

​

    static URL = 'https://services.zabbix.com/updates/v1';

    static TYPE = 'software_update_check';

    static DELAY_ON_ERROR = 60; // 1 minute

​

    #data = {};

​

    constructor() {

        this.#startUpdating(ZBX_SOFTWARE_VERSION_CHECK_DELAY);

    }

​

    #startUpdating(delay) {

        setTimeout(() => this.#getSavedData(), delay * 1000);

    }

​

    #getSavedData() {

        const curl = new Curl('zabbix.php');

​

        curl.setArgument('action', 'softwareversioncheck.get');

​

        fetch(curl.getUrl())

            .then(response => response.json())

            .then(response => {

                if ('error' in response) {

                    throw {error: response.error};

                }

​

                if (!response.is_software_update_check_enabled) {

                    return;

                }

​

                if ('delay' in response) {

                    this.#startUpdating(response.delay);

                }

                else {

                    this.#data.versions = [];

                    this.#data.version = response.version;

                    this.#data.check_hash = response.check_hash;

                    this.#data.csrf_token = response.csrf_token;

​

                    this.#getCurrentData();

                }

            })

            .catch(exception => {

                console.log('Could not get data', exception);

​

                this.#startUpdating(CSoftwareVersionCheck.DELAY_ON_ERROR);