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2 daniel-mar 1
<?php
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/*
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 * VNag - Nagios Framework for PHP
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 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
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 * Licensed under the terms of the Apache 2.0 license
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 *
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 * Revision 2023-10-13
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 */
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declare(ticks=1);
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class PhpMyAdminVersionCheck extends VNag {
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        protected $argSystemDir = null;
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        public function __construct() {
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                parent::__construct();
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                $this->registerExpectedStandardArguments('Vht');
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                $this->getHelpManager()->setPluginName('check_phpmyadmin_version');
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                $this->getHelpManager()->setVersion('2023-10-13');
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                $this->getHelpManager()->setShortDescription('This plugin checks if a local phpMyAdmin system has the latest version installed.');
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                $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');
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                $this->getHelpManager()->setSyntax('$SCRIPTNAME$ [-d <directory>]');
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                $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');
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                // Individual (non-standard) arguments:
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                $this->addExpectedArgument($this->argSystemDir = new VNagArgument('d', 'directory', VNagArgument::VALUE_REQUIRED, 'phpmyadminPath', 'The local directory where your phpMyAdmin installation is located.'));
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        }
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        protected function get_local_version($path) {
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                $path = realpath($path) === false ? $path : realpath($path);
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                if (file_exists($file = "$path/libraries/classes/Version.php")) { // Variant 3 (5.1.0+)
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                        $regex = '@VERSION = \'(.*)\'@ismU';
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                } else if (file_exists($file = "$path/libraries/classes/Config.php")) { // Variant 2 (5.0.x)
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                        $regex = '@\$this->set\(\'PMA_VERSION\', \'(.*)\'\);@ismU';
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                } else if (file_exists($file = "$path/libraries/Config.class.php")) { // Variant 1 (very old)
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                        $regex = '@\$this->set\(\'PMA_VERSION\', \'(.*)\'\);@ismU';
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                } else {
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                        throw new VNagException("Cannot find the phpMyAdmin version information at $path");
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                }
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                $cont = @file_get_contents($file);
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                if ($cont === false) {
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                        throw new VNagException("Cannot parse the phpMyAdmin version information at $path (cannot open file $file)");
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                }
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                if (!preg_match($regex, $cont, $m)) {
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                        throw new VNagException("Cannot parse the phpMyAdmin version information at $path (cannot find version using regex)");
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                }
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                return $m[1];
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        }
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        protected function get_latest_version() {
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                $cont = $this->url_get_contents('https://www.phpmyadmin.net/home_page/version.json'); // alternatively version.php
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                if ($cont === false) {
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                        throw new VNagException('Cannot parse version from phpMyAdmin website. The plugin probably needs to be updated. (Cannot access phpmyadmin.net)');
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                }
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                $json = @json_decode($cont, true);
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                if ($json === false) {
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                        throw new VNagException('Cannot parse version from phpMyAdmin website. The plugin probably needs to be updated. (Invalid JSON data downloaded from phpmyadmin.net)');
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                }
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                return $json['version'];
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        }
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        protected function cbRun($optional_args=array()) {
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                $system_dir = $this->argSystemDir->getValue();
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                if (empty($system_dir)) {
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                        throw new VNagException("Please specify the directory of the phpMyAdmin installation.");
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                }
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                $system_dir = realpath($system_dir) === false ? $system_dir : realpath($system_dir);
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                if (!is_dir($system_dir)) {
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                        throw new VNagException('Directory "'.$system_dir.'" not found.');
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                }
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                $version = $this->get_local_version($system_dir);
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                $latest_version = $this->get_latest_version();
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                if (version_compare($version,$latest_version) >= 0) {
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                        $this->setStatus(VNag::STATUS_OK);
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                        if ($version == $latest_version) {
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                                $this->setHeadline("Version $version (Latest version) at $system_dir", true);
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                        } else {
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                                $this->setHeadline("Version $version (Latest version $latest_version) at $system_dir", true);
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                        }
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                } else {
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                        $this->setStatus(VNag::STATUS_WARNING);
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                        $this->setHeadline("Version $version is outdated (Latest version is $latest_version) at $system_dir", true);
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                }
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        }
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}