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  1. <?php
  2.  
  3. /*
  4.  * VNag - Nagios Framework for PHP
  5.  * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
  6.  * Licensed under the terms of the Apache 2.0 license
  7.  *
  8.  * Revision 2023-10-13
  9.  */
  10.  
  11. declare(ticks=1);
  12.  
  13. class PmWikiVersionCheck extends VNag {
  14.         protected $argSystemDir = null;
  15.  
  16.         public function __construct() {
  17.                 parent::__construct();
  18.  
  19.                 $this->registerExpectedStandardArguments('Vht');
  20.  
  21.                 $this->getHelpManager()->setPluginName('check_pmwiki_version');
  22.                 $this->getHelpManager()->setVersion('2023-10-13');
  23.                 $this->getHelpManager()->setShortDescription('This plugin checks if a local PmWiki system has the latest version installed.');
  24.                 $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');
  25.                 $this->getHelpManager()->setSyntax('$SCRIPTNAME$ [-d <directory>]');
  26.                 $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');
  27.  
  28.                 // Individual (non-standard) arguments:
  29.                 $this->addExpectedArgument($this->argSystemDir = new VNagArgument('d', 'directory', VNagArgument::VALUE_REQUIRED, 'pmWikiPath', 'The local directory where PmWiki installation is located.'));
  30.         }
  31.  
  32.         protected function get_local_version($path) {
  33.                 $path = realpath($path) === false ? $path : realpath($path);
  34.  
  35.                 $cont = @file_get_contents("$path/scripts/version.php");
  36.                 if ($cont === false) {
  37.                         throw new VNagException("Cannot find version information at $path (cannot read version.php)");
  38.                 }
  39.  
  40.                 if (!preg_match('@\\$Version="pmwiki-(.+)";@is', $cont, $m)) {
  41.                         throw new VNagException("Cannot find version information at $path (cannot find version string)");
  42.                 }
  43.  
  44.                 return $m[1];
  45.         }
  46.  
  47.         protected function get_latest_version() {
  48.                 $cont = $this->url_get_contents('https://www.pmwiki.org/wiki/PmWiki/Download');
  49.                 if ($cont === false) {
  50.                         throw new VNagException("Cannot access website with latest version");
  51.                 }
  52.  
  53.                 if (!preg_match('@Latest <em>stable</em> release \(pmwiki-(.+)<@ismU', $cont, $m)) {
  54.                         throw new VNagException("Cannot find version information on the website");
  55.                 }
  56.  
  57.                 return $m[1];
  58.         }
  59.  
  60.         protected function cbRun($optional_args=array()) {
  61.                 $system_dir = $this->argSystemDir->getValue();
  62.                 if (empty($system_dir)) {
  63.                         throw new VNagException("Please specify the directory of the PmWiki installation.");
  64.                 }
  65.                 $system_dir = realpath($system_dir) === false ? $system_dir : realpath($system_dir);
  66.  
  67.                 if (!is_dir($system_dir)) {
  68.                         throw new VNagException('Directory "'.$system_dir.'" not found.');
  69.                 }
  70.  
  71.                 $version = $this->get_local_version($system_dir);
  72.  
  73.                 $latest_version = $this->get_latest_version();
  74.  
  75.                 if (version_compare($version,$latest_version) >= 0) {
  76.                         $this->setStatus(VNag::STATUS_OK);
  77.                         $this->setHeadline("Version $version at $system_dir", true);
  78.                 } else {
  79.                         $this->setStatus(VNag::STATUS_WARNING);
  80.                         $this->setHeadline("Version $version is outdated (Latest version is $latest_version) at $system_dir", true);
  81.                 }
  82.         }
  83. }
  84.