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  1. <?php
  2.  
  3. /*
  4.  * OIDplus 2.0
  5.  * Copyright 2019 - 2022 Daniel Marschall, ViaThinkSoft
  6.  *
  7.  * Licensed under the Apache License, Version 2.0 (the "License");
  8.  * you may not use this file except in compliance with the License.
  9.  * You may obtain a copy of the License at
  10.  *
  11.  *     http://www.apache.org/licenses/LICENSE-2.0
  12.  *
  13.  * Unless required by applicable law or agreed to in writing, software
  14.  * distributed under the License is distributed on an "AS IS" BASIS,
  15.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16.  * See the License for the specific language governing permissions and
  17.  * limitations under the License.
  18.  */
  19.  
  20. use ViaThinkSoft\OIDplus\OIDplus;
  21. use ViaThinkSoft\OIDplus\OIDplusException;
  22. use ViaThinkSoft\OIDplus\OIDplusPageAdminVNagVersionCheck;
  23.  
  24. include __DIR__ . '/../../../../vendor/danielmarschall/vnag/framework/vnag_framework.inc.php';
  25. include __DIR__ . '/../../../../includes/oidplus.inc.php';
  26.  
  27. const OIDPLUS_VNAG_MAX_CACHE_AGE = 60; // seconds (TODO: in base config?)
  28.  
  29. OIDplus::init(false);
  30.  
  31. if (OIDplus::baseConfig()->getValue('DISABLE_PLUGIN_ViaThinkSoft\OIDplus\OIDplusPageAdminVNagVersionCheck', false)) {
  32.         throw new OIDplusException(_L('This plugin was disabled by the system administrator!'));
  33. }
  34.  
  35. class VNagMonitorDummy extends VNag {
  36.  
  37.         private $status;
  38.  
  39.         private $content;
  40.  
  41.         public function __construct($status, $content) {
  42.                 parent::__construct();
  43.                 $this->status = $status;
  44.                 $this->content = $content;
  45.         }
  46.  
  47.         protected function cbRun($optional_args = array()) {
  48.                 $this->setStatus($this->status);
  49.                 $this->setHeadline($this->content);
  50.         }
  51. }
  52.  
  53. $cache_file = OIDplus::localpath() . 'userdata/cache/vnag_version_check.ser';
  54.  
  55. if ((file_exists($cache_file)) && (time()-filemtime($cache_file) <= OIDPLUS_VNAG_MAX_CACHE_AGE)) {
  56.         // Anti DoS
  57.  
  58.         // TODO: There is a small flaw: If the admin fails to secure the "cache/" folder
  59.         //       from the public, then people can read the version file, even if the
  60.         //       VNag script is intended to be protected by a vnag_password.
  61.         list($out_stat, $out_msg) = unserialize(file_get_contents($cache_file));
  62.  
  63. } else {
  64.  
  65.         $installType = OIDplus::getInstallType();
  66.  
  67.         if ($installType === 'ambigous') {
  68.                 $out_stat = VNag::STATUS_UNKNOWN;
  69.                 $out_msg  = 'Multiple version files/directories (oidplus_version.txt, .version.php, .git, or .svn) are existing! Therefore, the version is ambiguous!'; // do not translate
  70.         } else if ($installType === 'unknown') {
  71.                 $out_stat = VNag::STATUS_UNKNOWN;
  72.                 $out_msg  = 'The version cannot be determined, and the update needs to be applied manually!'; // do not translate
  73.         } else if (($installType === 'svn-wc') || ($installType === 'git-wc')) {
  74.                 $local_installation = OIDplus::getVersion();
  75.                 $newest_version = getLatestRevision();
  76.  
  77.                 $requireInfo = ($installType === 'svn-wc') ? 'shell access with svn/svnversion tool, or PDO/SQLite3 PHP extension' : 'shell access with Git client'; // do not translate
  78.                 $updateCommand = ($installType === 'svn-wc') ? 'svn update' : 'git pull';
  79.  
  80.                 if (!$newest_version) {
  81.                         $out_stat = VNag::STATUS_UNKNOWN;
  82.                         $out_msg  = 'OIDplus could not determine the latest version. Probably the ViaThinkSoft server could not be reached.'; // do not translate
  83.                 } else if (!$local_installation) {
  84.                         $out_stat = VNag::STATUS_UNKNOWN;
  85.                         $out_msg  = 'OIDplus could not determine its version (Required: ' . $requireInfo . '). Please update your system manually via the "' . $updateCommand . '" command regularly.'; // do not translate
  86.                 } else if (version_compare($local_installation, $newest_version) >= 0) {
  87.                         $out_stat = VNag::STATUS_OK;
  88.                         $out_msg  = 'You are using the latest version of OIDplus (' . $local_installation . ' local / ' . $newest_version . ' remote)'; // do not translate
  89.                 } else {
  90.                         $out_stat = VNag::STATUS_WARNING;
  91.                         $out_msg  = 'OIDplus is outdated. (' . $local_installation . ' local / ' . $newest_version . ' remote)'; // do not translate
  92.                 }
  93.         } else if ($installType === 'svn-snapshot') {
  94.                 $local_installation = OIDplus::getVersion();
  95.                 $newest_version = getLatestRevision();
  96.  
  97.                 if (!$newest_version) {
  98.                         $out_stat = VNag::STATUS_UNKNOWN;
  99.                         $out_msg  = 'OIDplus could not determine the latest version. Probably the ViaThinkSoft server could not be reached.'; // do not translate
  100.                 } else if (!$local_installation) {
  101.                         $out_stat = 'WARN';
  102.                         $out_msg  = 'OIDplus could not determine its version. Please update your system manually by downloading the latest archive file from oidplus.com.'; // do not translate
  103.                 } else if (version_compare($local_installation, $newest_version) >= 0) {
  104.                         $out_stat = VNag::STATUS_OK;
  105.                         $out_msg  = 'You are using the latest version of OIDplus (' . $local_installation . ' local / ' . $newest_version . ' remote)'; // do not translate
  106.                 } else {
  107.                         $out_stat = VNag::STATUS_WARNING;
  108.                         $out_msg  = 'OIDplus is outdated. (' . $local_installation . ' local / ' . $newest_version . ' remote)'; // do not translate
  109.                 }
  110.         } else {
  111.                 assert(false);
  112.                 die();
  113.         }
  114.  
  115.         @file_put_contents($cache_file, serialize(array($out_stat, $out_msg)));
  116. }
  117.  
  118. $job = new VNagMonitorDummy($out_stat, $out_msg);
  119. if (OIDplus::config()->getValue('vnag_version_check_password_protected','1') == '1') {
  120.         $job->http_visual_output = VNag::OUTPUT_NEVER;
  121.         $job->password_out = OIDplusPageAdminVNagVersionCheck::vnag_password();
  122.         $job->outputHTML(_L('This page contains an encrypted VNag machine-readable status.'));
  123. } else {
  124.         $job->http_visual_output = VNag::OUTPUT_ALWAYS;
  125. }
  126. if (OIDplus::getPkiStatus()) {
  127.         $job->privkey = OIDplus::getSystemPrivateKey();
  128. }
  129. $job->run();
  130. unset($job);
  131.  
  132. OIDplus::invoke_shutdown();
  133.  
  134. # ---
  135.  
  136. function getLatestRevision() {
  137.         try {
  138.                 if (function_exists('gzdecode')) {
  139.                         $url = OIDplus::getEditionInfo()['revisionlog_gz'];
  140.                         $cont = url_get_contents($url);
  141.                         if ($cont !== false) $cont = @gzdecode($cont);
  142.                 } else {
  143.                         $url = OIDplus::getEditionInfo()['revisionlog'];
  144.                         $cont = url_get_contents($url);
  145.                 }
  146.                 if ($cont === false) return false;
  147.                 $ary = @unserialize($cont);
  148.                 if ($ary === false) return false;
  149.                 krsort($ary);
  150.                 $max_rev = array_keys($ary)[0];
  151.                 return 'svn-' . $max_rev;
  152.         } catch (\Exception $e) {
  153.                 return false;
  154.         }
  155. }
  156.  
  157.