Subversion Repositories vnag

<?php /* <ViaThinkSoftSignature>

gX9e3ZsTr/5gCndjoXkh5Y65OgXPOPRob9TUwW2ssq+YdiQl3g/A8t35kb23dX6WN

fU0aZTP1S2DBLLaf0I6CiKrli99a9KsHjA7kH4rmjed5RFwqBoRbUxJTFvt4X0EkX

8k/sIUmdES8kVO+JTfIlUB4ZFjVlc89bTWQaeagXkE58f8Fhr+Up9GvQJ2eJDEUpv

Zfw7kHZ+odkkiK5L+aCP+Mwl+A044R/e8SnBMf3ng7PKwLRoGu9d2iRAEdAIUzZWz

RAxmnyVqsjtUUxSPrCp+3WOmzdR1hWLZm+BJvpGOTjuICKXxOatyIsBR76mh2ndri

PrD9y8NLdI/azsEiJWZgCJr8h1R2/SWF1ndiC5nshT2sZBAQLdSQ/zvcbIdHtnibq

63KEDcR/m3V657gVmT1UAAM7JtcTh2x9GDz5ZWAg7Vcb+q54s9A6NNEXaHOc3XMHq

aCGuf1EYZyaQeTiyPkgJHwtH4rawwu4K+keDm+loS/KQ9btuC0tDLcupwJZn9qREo

2YJ2IwKaNzRj7DNkIG7ASwqwcbWQSx2RqUWm9zG0D5NIx+Jc97A19v3p3HaplGH5K

+1anSj87rtxENA+n1L+8ZbvI4SZ0txLxS2sJwYr/0Pv2gWUxUdoVhmNPRWAKnQM8w

12TqndyF4ls5KamJemkz3RSiYLWH67sW1jBi+QYu/VGcf15vOmlHMQemf+TEly1sA

zn7BQsxGS5Wosux4fToyLNKNvXlaWiuo6Q1SACRTns9rKnX9atFrnydO1NHaA1WkA

KgEQolI7fL2ggz+6veuyAbHnpMvp26essnXApwC604HOFW7IB4lrnZCyk8UHtGixD

xy7bHKXV1jPGXkN/AUADY3Avq1/6N65GAAPNoHnKrlGVjDJyI7H/KMiTPASzJzJ0e

XFpmgWSHmQfPMNv0dFwjE8siQyF2FwGz4bYb4FbfLheUhEZRcGtZniAZMHT4zPAK4

+Mp61QsX/79a1NBg3gmPtk1cziK6UyhuD2BubUm3y4MXANDxZhe0mw0UxKQtW0XDL

yXBDmGL8D3yPdmafx4UublOjvfAJLZDjYENPoaDhH8ZCowcdSbe7NZKsCtNWsRh+a

7kEUZ2wEtCWiajyOq4piR9fRO4uVb+4Umdw+UaG6kKlCbuV4jkC48EQUUt56c19zK

WopXwCSa2GZioCz5vUzNoeNtdjJDMXgW+Af/PbV4qBRZkv3vYJ84Z8fFDZrGqUnpU

5mLlK8KuaGLg3nZLXsNYgepTXPqvtTvC9Xps/HNsUBiHBcKNcff8iqOl6cWZlBCl1

hOWTlTqhzBLCLnXKxnvX+yG9c2chKna94ZAPgX7w95k5vX8+xOg9nfwAIfjZkm83C

w==

</ViaThinkSoftSignature> */ ?>

<?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 2021-06-26

 */

declare(ticks=1);

class NextCloudVersionCheck extends VNag {

        protected $argSystemDir = null;

        public function __construct() {

                parent::__construct();

                $this->registerExpectedStandardArguments('Vvht');

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

                $this->getHelpManager()->setVersion('1.0');

                $this->getHelpManager()->setShortDescription('This plugin checks if a local Nextcloud 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, 'nextCloudPath', 'The local directory where your Nextcloud installation is located.'));

        }

        protected function get_nextcloud_version($local_path) {

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

                if (!file_exists($local_path . '/version.php')) {

                        throw new Exception('This is not a valid Nextcloud installation in "'.$local_path.'".');

                }

                // TODO: this is a security vulnerability if an non-root user can control the input of version.php !

                $vendor = 'unknown';

                $OC_Version = array(0,0,0,0);

                $OC_VersionString = 'unknown';

                $OC_Edition = 'unknown';

                $OC_Channel = 'unknown';

                $OC_Build = 'unknown';

                include $local_path . '/version.php';

                if ($vendor != 'nextcloud') {

                        throw new Exception('This is not a valid Nextcloud installation in "'.$local_path.'". It is "$vendor".');

                }

                $baseUrl = 'https://updates.nextcloud.org/updater_server/';

                // More information about the paramters, see https://github.com/nextcloud/updater_server/blob/master/src/Request.php

                $php_version = explode('.', PHP_VERSION);

                $update_url = $baseUrl . '?version='.

                              implode('x', $OC_Version).'x'.

                              'x'. // installationMtime

                              'x'. // lastCheck

                              $OC_Channel.'x'.

                              $OC_Edition.'x'.

                              urlencode($OC_Build).'x'.

                              $php_version[0].'x'.

                              $php_version[1].'x'.

                              intval($php_version[2]); // Last part could be something like "28-2+0~20210604.85+debian9~1.gbp219f11"

                $cont = file_get_contents($update_url);

                if ($cont === false) {

                        throw new Exception('Could not determinate current Nextcloud version in "'.$local_path.'".');

                }

                if ($cont === '') {

                        return array($OC_VersionString, $OC_VersionString, $OC_Channel);

                } else {

                        $xml = simplexml_load_string($cont);

                        $new_ver = (string)$xml->version;

                        return array($OC_VersionString, $new_ver, $OC_Channel);

                }

        }

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

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

                if (empty($system_dir)) {

                        throw new Exception("Please specify the directory of the Nextcloud installation.");

                }

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

                if (!is_dir($system_dir)) {

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

                }

                list($cur_ver, $new_ver, $channel) = $this->get_nextcloud_version($system_dir);

                if ($cur_ver === $new_ver) {

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

                        $this->setHeadline("Nextcloud version $cur_ver [$channel] is the latest available version for your Nextcloud installation at $system_dir", true);

                } else {

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

                        $this->setHeadline("Nextcloud version $cur_ver [$channel] is outdated. Newer version is $new_ver [$channel] for installation at $system_dir", true);

                }

        }

}