PHP Script for updating MantisBT. Designed for use in a Cron job.

mantisUpdate.php

<?php
 ini_set('display_errors',1);
 ignore_user_abort(true);
 error_reporting(E_ALL);
 header('Content-Type: text/html; charset=utf-8');
 header('Content-Encoding: none;');

 $cron = $argv[1];
 if ($cron != 'cron')
  return('This needs to be run from CRON.');

   /* * * * * * * * * * * * * * * * * * * * * * * * * * * *
  *                                                       *
  *                    mantisUpdate.php                   *
  *                                                       *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  *                                                       *
  *  * v1.1       June 6, 2017                            *
  *     Andrew Sachen <webmaster@RealityRipple.com>       *
  *                                                       *
  *     +Added serverType variable                        *
  *     #Skipped readme and config sample files           *
  *                                                       *
  *  * v1.0       May 23, 2017                            *
  *     Andrew Sachen <webmaster@RealityRipple.com>       *
  *                                                       *
  *     /Conceived and written                            *
  *                                                       *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * */

 /*
  * siteURL
  * =======
  *  Address of your MantisBT installation.
  * This value is used in the link to /admin/install.php
  * which is used in the message returned by this script.
  * This is the only path without a trailing slash!
  */
 $siteURL = 'http://bugs.example.com';

 /*
  * htDir
  * =====
  *  Root web directory. Not used in script.
  * This is just useful for all the other directory values.
  */
 $htDir = '/var/www';

 /*
  * saveDir1
  * ========
  *  MantisBT directory. Active installation location.
  */
 $saveDir1 = $htDir.'bugs/';

 /*
  * saveDir2
  * ========
  *  MantisBT data directory. Active installation location.
  * This location will house the "core", "lang", "library",
  * and "api"  directories. If this is not the same as
  * saveDir1, then a "core" directory will be created in
  * saveDir1, and the constant_inc.php file from saveDir2
  * will be copiedto saveDir1's "core" directory.
  */
 $saveDir2 = '/var/.bugdata/';

 /*
  * tempDir
  * =======
  *  Temporary storage directory.
  * The MantisBT zip file will be downloaded and extracted
  * to this directory. Make sure no file called "bugs.zip"
  * is ever created in this directory. It's unlikely a
  * directory with the same name as the latest MantisBT
  * version would exist, but to be on the safe side, don't
  * let any directories that start with "mantisbt-" exist
  * in this directory either.
  */
 $tempDir  = '/usr/tmp/mantis/';

 /*
  * tempDir1
  * ========
  *  Temporary storage directory for MantisBT installation.
  * This directory will be completely deleted, so don't
  * use an existing directory under any circumstances.
  */
 $tempDir1 = $tempDir.'bugs/';

 /*
  * tempDir2
  * ========
  *  Temporary storage directory for MantisBT data.
  * This directory will be completely deleted, so don't
  * use an existing directory under any circumstances.
  * This must be the same as tempDir1 if saveDir2 is also
  * the same as saveDir1, and must be different from
  * tempDir1 if saveDir2 is different from saveDir1.
  */
 $tempDir2 = $tempDir.'.bugdata/';

 /*
  * specialFiles[]
  * ==============
  *  Array of files which should be kept.
  * Do not remove the config/config_inc.php file or you
  * will lose all your configuration data in the upgrade.
  */
 $specialFiles = array();
 $specialFiles[] = 'config/config_inc.php';
 $specialFiles[] = 'images/favicon.ico';
 $specialFiles[] = 'images/mantis_logo.gif';
 $specialFiles[] = 'images/mantis_logo.png';
 $specialFiles[] = 'images/mantis_logo_notext.png';
 //Add below this line for safety.

 /*
  * specialDirs[]
  * =============
  *  Array of directories which should be kept.
  * This is particularly useful for plugins. No directory
  * needs to be kept through upgrades by default.
  */
 $specialDirs = array();
 
 /*
  * verbose
  * =======
  *  Print out every stage of the operation.
  * Errors will always be displayed.
  */
 $verbose = true;

 /*
  * serverType
  * ==========
  *  Choose the type of webserver MantisBT is hosted on.
  * This script will remove files that are not necessary
  * for this type of server.
  *
  * > "Apache" deletes "Web.config" files
  *
  * > "ASP.NET" deletes ".htaccess" files
  *
  * > Any other value deletes both types of files.
  * You will need to configure your folders another way.
  */
 $serverType = 'Apache';
 //$serverType = 'ASP.NET';

 /* * * * * * * * * * * * * * * * * * * * * * * * * * * */

 function compareVersions($sVerA, $sVerB)
 {
  $aV = explode('.', $sVerA);
  $bV = explode('.', $sVerB);
  
  if (count($aV) < count($bV))
  {
   for ($i = count($aV); $i < count($bV); $i++)
    $aV[$i] = '0';
  }
  else if (count($aV) > count($bV))
  {
   for ($i = count($bV); $i < count($aV); $i++)
    $bV[$i] = '0';
  }
  $segments = count($aV);
  for ($i = 0; $i < $segments; $i++)
  {
   if (intval($aV[$i]) > intval($bV[$i]))
    return 1;
   if ($i == $segments - 1)
   {
    if (intval($aV[$i]) == intval($bV[$i]))
     return 0;
   }
   else if (intval($aV[$i]) < intval($bV[$i]))
    break;
  }
  return -1;
 }

 function copyDir($src, $dest) 
 {
  $dir = opendir($src);
  @mkdir($dest);
  while(($file = readdir($dir)) !== false)
  {
   if (($file == '.') || ($file == '..'))
    continue;
   $fPath = "$src/$file";
   $fDest = "$dest/$file";
   if (is_dir($fPath))
    copyDir($fPath, $fDest);
   else 
    copy($fPath, $fDest);
  }
  closedir($dir);
 }
 
 function deleteDir($src) 
 {
  $dir = opendir($src);
  while(($file = readdir($dir)) !== false)
  {
   if (($file == '.') || ($file == '..'))
    continue;
   $fPath = "$src/$file";
   if (is_dir($fPath))
    deleteDir($fPath);
   else 
    unlink($fPath);
  }
  closedir($dir);
  rmdir($src);
 }
 
 ob_start();
 set_time_limit(2000);
 $time_start = microtime(true);
 $unique = true;
 if ($tempDir1 == $tempDir2 && $saveDir1 == $saveDir2)
  $unique = false;
 else if ($tempDir1 != $tempDir2 && $saveDir1 != $saveDir2)
  $unique = true;
 else if ($tempDir1 != $tempDir2)
  die('tempDir1 and tempDir2 must be the same because the saveDirs are the same.');
 else
  die('tempDir1 and tempDir2 must be different because the saveDirs are different.');
 @mkdir($tempdir);
 if (file_exists($tempDir.'bugs.zip'))
  unlink($tempDir.'bugs.zip');
 if (file_exists($tempDir1))
  deleteDir($tempDir1);
 if ($unique)
 {
  if (file_exists($tempDir2))
   deleteDir($tempDir2);
 }
 $myVer = '0.0.0';
 if (file_exists($saveDir1.'core/constant_inc.php'))
 {
  $verFile = file_get_contents($saveDir1.'core/constant_inc.php');
  if (strpos($verFile, 'MANTIS_VERSION') !== false)
  {
   $verFile = substr($verFile, strpos($verFile, 'MANTIS_VERSION') + 14);
   $verFile = substr($verFile, strpos($verFile, ' \'') + 2);
   $myVer = substr($verFile, 0, strpos($verFile, '\''));
  }
 }
 $feedFile = simplexml_load_file('https://sourceforge.net/projects/mantisbt/rss?path=/mantis-stable');
 $feedJSON = json_encode($feedFile);
 $feed = json_decode($feedJSON, true);
 $dList = $feed['channel']['item'];
 $betterV = array();
 foreach ($dList as $dEl)
 {
  $dElLink = $dEl['link'];
  if (strpos($dElLink, 'mantis-stable') === false)
   continue;
  if (strpos($dElLink, '.zip/download') === false)
   continue;
  $dElVer = substr($dElLink, strpos($dElLink, 'mantis-stable') + 14);
  $dElVer = substr($dElVer, 0, strpos($dElVer, '/'));
  if (compareVersions($myVer, $dElVer) > -1)
   continue;
  $bEl = array();
  $bEl['ver'] = $dElVer;
  $bEl['url'] = $dElLink;
  $betterV[] = $bEl;
 }
 if (count($betterV) == 0)
  die();
 
 $getFile = '';
 $bestVer = $myVer;
 if (count($betterV) == 1)
 {
  $bestVer = $betterV[0]['ver'];
  $getFile = $betterV[0]['url'];
 }
 else
 {
  foreach ($betterV as $betterEl)
  {
   if (compareVersions($bestVer, $betterEl['ver']) > -1)
    continue;
   $bestVer = $betterEl['ver'];
   $getFile = $betterEl['url'];
  }
 }
 if ($getFile == '')
  die('Unable to determine URL for new MantisBT Version!');
 if ($verbose)
  echo "Downloading new MantisBT Version..."; ob_flush(); flush();
 $gh = fopen($getFile, 'r');
 file_put_contents($tempDir.'bugs.zip', $gh);
 fclose($gh);
 if ($verbose)
  echo(" Complete!\n"); ob_flush(); flush();
 $z = new ZipArchive;
 if ($z->open($tempDir.'bugs.zip') !== true)
  die('Failed to open MantisBT ZIP');
 copy ($saveDir1.'mantis_offline.php.sample', $saveDir1.'mantis_offline.php');
 mkdir($tempDir1);
 if ($unique)
  mkdir($tempDir2);
 if ($verbose)
  echo("Extracting Files..."); ob_flush(); flush();
 $zipRoot = '';
 for ($i=0; $i < $z->numFiles; $i++)
 {
  $zippedName = $z->getNameIndex($i);
  $zippedDir = substr($zippedName, 0, strrpos($zippedName, '/') + 1);
  if (substr($zippedDir, 0, 9) == 'mantisbt-')
  {
   if ($zipRoot == '')
    $zipRoot = substr($zippedDir, 0, strpos($zippedDir, '/'));
   $zippedDir = substr($zippedDir, strpos($zippedDir, '/') + 1);
  }
  $zippedFName = substr($zippedName, strrpos($zippedName, '/') + 1);
  if (strpos(strtolower($zippedName), 'core/constant_inc.php') !== false)
  {
   $z->extractTo($tempDir, $zippedName);
   if (!file_exists($tempDir1.$zippedDir))
    mkdir($tempDir1.$zippedDir);
   rename($tempDir.$zippedName, $tempDir1.$zippedDir.$zippedFName);
   if ($unique)
   {
    if (!file_exists($tempDir2.$zippedDir))
     mkdir($tempDir2.$zippedDir);
    copy($tempDir1.$zippedDir.$zippedFName, $tempDir2.$zippedDir.$zippedFName);
   }
  }
  else if (strpos(strtolower($zippedName), '/readme.md') !== false)
  {
   // skip the readme file
  }
  else if (strpos(strtolower($zippedName), '/config/config_inc.php.sample') !== false)
  {
   // skip the sample config
  }
  else if (strpos(strtolower($zippedName), '.htaccess') !== false && strtolower($serverType) != 'apache')
  {
   // skip .htaccess files if not running Apache
  }
  else if (strpos(strtolower($zippedName), 'web.config') !== false && strtolower($serverType) != 'asp.net')
  {
   // skip Web.config files if not running ASP.NET
  }
  else if (substr(strtolower($zippedDir), 0, 5) == 'core/' || substr(strtolower($zippedDir), 0, 5) == 'lang/' || substr(strtolower($zippedDir), 0, 8) == 'library/' || substr(strtolower($zippedDir), 0, 4) == 'api/')
  {
   $z->extractTo($tempDir, $zippedName);
   if (!file_exists($tempDir2.$zippedDir))
    mkdir($tempDir2.$zippedDir);
   rename($tempDir.$zippedName, $tempDir2.$zippedDir.$zippedFName);
  }
  else if (substr(strtolower($zippedDir), 0, 4) == 'doc/')
  {
   // skip the doc folder
  }
  else
  {
   $z->extractTo($tempDir, $zippedName);
   if (!file_exists($tempDir1.$zippedDir))
    mkdir($tempDir1.$zippedDir);
   rename($tempDir.$zippedName, $tempDir1.$zippedDir.$zippedFName);
  }
 }
 $z->close();
 unlink($tempDir.'bugs.zip');
 if ($zipRoot != '')
  deleteDir($tempDir.$zipRoot);
 if ($verbose)
  echo("Complete!\n"); ob_flush(); flush();

 if ($verbose)
  echo("Upgrading MantisBT Files..."); ob_flush(); flush();

 copy ($tempDir1.'mantis_offline.php.sample', $tempDir1.'mantis_offline.php');
 
 
 if (isset($specialDirs) && count($specialDirs) > 0)
 {
  foreach ($specialDirs as $specialDir)
  {
   copyDir($saveDir1.$specialDir, $tempDir1.$specialDir);
  }
 }
 
 if (isset($specialFiles) && count($specialFiles) > 0)
 {
  foreach ($specialFiles as $specialFile)
  {
   copy($saveDir1.$specialFile, $tempDir1.$specialFile);
  }
 }
 
 deleteDir($saveDir1);
 if ($unique)
  deleteDir($saveDir2);

 copyDir($tempDir1, $saveDir1);
 if ($unique)
  copyDir($tempDir2, $saveDir2);
 
 deleteDir($tempDir1);
 if ($unique)
  deleteDir($tempDir2);
 
 if ($verbose)
  echo(" Complete!\n"); ob_flush(); flush();
 
 $time_end = microtime(true);
 if ($verbose)
  echo("Completed in ".($time_end - $time_start)." seconds.\n");
 
 echo("Your MantisBT installation has been upgraded from v$myVer to v$bestVer.\n");
 echo("Please visit <$siteURL/admin/install.php> to complete the installation.\n");
 echo("If you would like to see the changes in this version, please visit <https://www.mantisbt.org/bugs/changelog_page.php?project=mantisbt&version=$bestVer>.");
 ob_end_flush(); 
?>