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  1. <?php /* <ViaThinkSoftSignature>
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  23. Q==
  24. </ViaThinkSoftSignature> */ ?>
  25. <?php
  26.  
  27. /*
  28.  * VNag - Nagios Framework for PHP
  29.  * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
  30.  * Licensed under the terms of the Apache 2.0 license
  31.  *
  32.  * Revision 2018-07-15
  33.  */
  34.  
  35. declare(ticks=1);
  36.  
  37. class FourImagesVersionCheck extends VNag {
  38.         protected $argSystemDir = null;
  39.  
  40.         public function __construct() {
  41.                 parent::__construct();
  42.  
  43.                 $this->registerExpectedStandardArguments('Vht');
  44.  
  45.                 $this->getHelpManager()->setPluginName('check_4images_version');
  46.                 $this->getHelpManager()->setVersion('1.0');
  47.                 $this->getHelpManager()->setShortDescription('This plugin checks if a local 4images system has the latest version installed.');
  48.                 $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');
  49.                 $this->getHelpManager()->setSyntax('$SCRIPTNAME$ [-d <directory>]');
  50.                 $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');
  51.  
  52.                 // Individual (non-standard) arguments:
  53.                 $this->addExpectedArgument($this->argSystemDir = new VNagArgument('d', 'directory', VNagArgument::VALUE_REQUIRED, '4imagesPath', 'The local directory where your 4images installation is located.'));
  54.         }
  55.  
  56.         protected function get_4images_version($path) {
  57.                 $path = realpath($path) === false ? $path : realpath($path);
  58.  
  59.                 $cont = @file_get_contents("$path/includes/constants.php");
  60.                 if (!preg_match("@define\('SCRIPT_VERSION', '(.*)'\);@ismU", $cont, $m)) {
  61.                         throw new Exception("Cannot find version information at $path");
  62.                 }
  63.  
  64.                 return $m[1];
  65.         }
  66.  
  67.         protected function get_latest_version() {
  68.                 $cont = @file_get_contents('https://www.4homepages.de/download-4images');
  69.                 if (!$cont) {
  70.                         throw new Exception("Cannot access website with latest version");
  71.                 }
  72.  
  73.                 if (!preg_match('@<h2>Download 4images (.+)</h2>@ismU', $cont, $m)) {
  74.                         if (!preg_match('@>Current Version: (.+)</a>@ismU', $cont, $m)) {
  75.                                 throw new Exception("Cannot find version information on the website");
  76.                         }
  77.                 }
  78.  
  79.                 return trim($m[1]);
  80.         }
  81.  
  82.         protected function cbRun($optional_args=array()) {
  83.                 $system_dir = $this->argSystemDir->getValue();
  84.                 if (empty($system_dir)) {
  85.                         throw new Exception("Please specify the directory of the 4images installation.");
  86.                 }
  87.                 $system_dir = realpath($system_dir) === false ? $system_dir : realpath($system_dir);
  88.  
  89.                 if (!is_dir($system_dir)) {
  90.                         throw new Exception('Directory "'.$system_dir.'" not found.');
  91.                 }
  92.  
  93.                 $version = $this->get_4images_version($system_dir);
  94.  
  95.                 $latest_version = $this->get_latest_version();
  96.  
  97.                 if ($version == $latest_version) {
  98.                         $this->setStatus(VNag::STATUS_OK);
  99.                         $this->setHeadline("Version $version at $system_dir", true);
  100.                 } else {
  101.                         $this->setStatus(VNag::STATUS_WARNING);
  102.                         $this->setHeadline("Version $version is outdated (Latest version is $latest_version) at $system_dir", true);
  103.                 }
  104.         }
  105. }
  106.  
  107.