Subversion Repositories vnag

<?php

/*

 * VNag - Nagios Framework for PHP

 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>

 * Licensed under the terms of the Apache 2.0 license

 *

 * Revision 2023-10-13

 */

declare(ticks=1);

class FourImagesVersionCheck extends VNag {

        protected $argSystemDir = null;

        public function __construct() {

                parent::__construct();

                $this->registerExpectedStandardArguments('Vht');

                $this->getHelpManager()->setPluginName('check_4images_version');

                $this->getHelpManager()->setVersion('2023-10-13');

                $this->getHelpManager()->setShortDescription('This plugin checks if a local 4images system has the latest version installed.');

                $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');

                $this->getHelpManager()->setSyntax('$SCRIPTNAME$ [-d <directory>]');

                $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');

                // Individual (non-standard) arguments:

                $this->addExpectedArgument($this->argSystemDir = new VNagArgument('d', 'directory', VNagArgument::VALUE_REQUIRED, '4imagesPath', 'The local directory where your 4images installation is located.'));

        }

        protected function get_local_version($path) {

                $path = realpath($path) === false ? $path : realpath($path);

                $cont = @file_get_contents("$path/includes/constants.php");

                if ($cont === false) {

                        throw new VNagException("Cannot find version information at $path (cannot read constants.php)");

                }

                if (!preg_match("@define\('SCRIPT_VERSION', '(.*)'\);@ismU", $cont, $m)) {

                        throw new VNagException("Cannot find version information at $path (constant SCRIPT_VERSION not found in constants.php)");

                }

                return $m[1];

        }

        protected function get_latest_version() {

                $cont = $this->url_get_contents('https://www.4homepages.de/download-4images');

                if ($cont === false) {

                        throw new VNagException("Cannot access website with latest version");

                }

                if (!preg_match('@<h2>Download 4images (.+)</h2>@ismU', $cont, $m)) {

                        if (!preg_match('@>Current Version: (.+)</a>@ismU', $cont, $m)) {

                                throw new VNagException("Cannot find version information on the website");

                        }

                }

                return trim($m[1]);

        }

        protected function cbRun($optional_args=array()) {

                $system_dir = $this->argSystemDir->getValue();

                if (empty($system_dir)) {

                        throw new VNagException("Please specify the directory of the 4images installation.");

                }

                $system_dir = realpath($system_dir) === false ? $system_dir : realpath($system_dir);

                if (!is_dir($system_dir)) {

                        throw new VNagException('Directory "'.$system_dir.'" not found.');

                }

                $version = $this->get_local_version($system_dir);

                $latest_version = $this->get_latest_version();

                if (version_compare($version,$latest_version) >= 0) {

                        $this->setStatus(VNag::STATUS_OK);

                        $this->setHeadline("Version $version at $system_dir", true);

                } else {

                        $this->setStatus(VNag::STATUS_WARNING);

                        $this->setHeadline("Version $version is outdated (Latest version is $latest_version) at $system_dir", true);

                }

        }

}