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   1  <?php
   2  /*************************************************************************************
   3     Copyright notice
   4     
   5     (c) 2002-2012 Oliver Georgi <oliver@phpwcms.de> // All rights reserved.
   6   
   7     This script is part of PHPWCMS. The PHPWCMS web content management system is
   8     free software; you can redistribute it and/or modify it under the terms of
   9     the GNU General Public License as published by the Free Software Foundation;
  10     either version 2 of the License, or (at your option) any later version.
  11    
  12     The GNU General Public License can be found at http://www.gnu.org/copyleft/gpl.html
  13     A copy is found in the textfile GPL.txt and important notices to the license 
  14     from the author is found in LICENSE.txt distributed with these scripts.
  15    
  16     This script is distributed in the hope that it will be useful, but WITHOUT ANY 
  17     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  18     PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  19   
  20     This copyright notice MUST APPEAR in all copies of the script!
  21  *************************************************************************************/
  22  
  23  
  24  $phpwcms    = array();
  25  $root        = rtrim(str_replace('\\', '/', realpath(dirname(__FILE__).'/../') ), '/').'/';
  26  require($root.'/config/phpwcms/conf.inc.php');
  27  require ($root.'/include/inc_lib/default.inc.php');
  28  require ($root.'/include/inc_lib/general.inc.php');
  29  require ($root.'/include/inc_lib/imagick.convert.inc.php');
  30  
  31  // get segments: cmsimage.php/%WIDTH%x%HEIGHT%x%CROP%x%QUALITY%/%HASH%.%EXT%
  32  // by default this should be enough: cmsimage.php/%WIDTH%x%HEIGHT/%HASH%.%EXT%
  33  $request_uri        = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $_SERVER['PHP_SELF'];
  34  
  35  // strip out PHPSESSNAME=...
  36  if(session_id() && session_name()) {
  37      // session expected at the end of REQUEST URI when added by PHP
  38      $session_name_pos = strpos($request_uri, session_name().'=');
  39      if($session_name_pos !== FALSE) {
  40          $request_uri = trim(trim(mb_substr($request_uri, 0, $session_name_pos), '&'), '?');
  41      }
  42  }
  43  
  44  $query_separator    = strpos($request_uri, 'cmsimage.php?') !== FALSE ? '?' : '/';
  45  $data                = explode('cmsimage.php'.$query_separator, $request_uri, 2);
  46  if(isset($data[1]) && !preg_match('/[^a-fgijpnxA-FGIJPN0-9\/\.]/', $data[1])) {
  47  
  48      $data = explode('/', $data[1]);
  49  
  50      // first check hashed data
  51      if(isset($data[1])) {
  52      
  53          $data[0]    = preg_replace('/[^0-9x]/', '', $data[0]);
  54          $data[1]    = preg_replace('/[^a-fgijpn0-9\.]/i', '', $data[1]);
  55  
  56          $value        = array();
  57  
  58          $hash        = cut_ext($data[1]);
  59          $ext        = which_ext($data[1]);
  60              
  61          if(is_numeric($hash)) {
  62              
  63              @session_start();
  64              $file_public = empty($_SESSION["wcs_user_id"]) ? 'f_public=1' : '(f_public=1 OR f_uid='.intval($_SESSION["wcs_user_id"]).')';
  65              
  66              require_once (PHPWCMS_ROOT.'/include/inc_lib/dbcon.inc.php');
  67          
  68              $sql   = 'SELECT f_hash, f_ext FROM '.DB_PREPEND.'phpwcms_file WHERE ';
  69              $sql  .= 'f_id='.intval($hash)." AND ";
  70              if(substr($phpwcms['image_library'], 0, 2) == 'gd') {
  71                  $sql .= "f_ext IN ('jpg','jpeg','png','gif','bmp') AND ";
  72              }
  73              $sql  .= 'f_trash=0 AND f_aktiv=1 AND '.$file_public;
  74              $hash  = _dbQuery($sql);
  75              if(isset($hash[0]['f_hash'])) {
  76                  $ext  = $hash[0]['f_ext'];
  77                  $hash = $hash[0]['f_hash'];
  78              } else {
  79                  $hash = '';
  80                  $ext  = '';
  81              }
  82              
  83          } elseif($hash && strlen($hash) == 32 && $ext && !is_file(PHPWCMS_ROOT.'/'.PHPWCMS_FILES.$hash.'.'.$ext)) {
  84              
  85              @session_start();
  86              $file_public = empty($_SESSION["wcs_user_id"]) ? 'f_public=1' : '(f_public=1 OR f_uid='.intval($_SESSION["wcs_user_id"]).')';
  87              
  88              require_once (PHPWCMS_ROOT.'/include/inc_lib/dbcon.inc.php');
  89          
  90              $sql   = 'SELECT f_hash, f_ext FROM '.DB_PREPEND.'phpwcms_file WHERE ';
  91              $sql  .= 'f_hash='._dbEscape($hash)." AND ";
  92              if(substr($phpwcms['image_library'], 0, 2) == 'gd') {
  93                  $sql .= "f_ext IN ('jpg','jpeg','png','gif','bmp') AND ";
  94              }
  95              $sql  .= 'f_trash=0 AND f_aktiv=1 AND '.$file_public;
  96              $hash  = _dbQuery($sql);
  97              if(isset($hash[0]['f_hash'])) {
  98                  $ext  = $hash[0]['f_ext'];
  99                  $hash = $hash[0]['f_hash'];
 100              } else {
 101                  $hash = '';
 102                  $ext  = '';
 103              }
 104              
 105          }
 106          
 107          if($hash && strlen($hash) == 32 && $ext) {
 108          
 109              $attribute    = explode('x', $data[0]);
 110              $width        = intval($attribute[0]);
 111              $height        = isset($attribute[1]) ? intval($attribute[1]) : 0;
 112              $crop        = isset($attribute[2]) ? (intval($attribute[2]) ? 1 : 0) : 0;
 113              
 114              // quality
 115              if(isset($attribute[3]) && ($quality = intval($attribute[3])) ) {
 116                  if($quality < 10 || $quality > 100) {
 117                      $quality = '';
 118                  } else {
 119                      $value['jpg_quality'] = $quality;
 120                  }
 121              } else {
 122                  $quality = '';
 123              }
 124  
 125              $value["max_width"]        = $width ? $width : '';
 126              $value["max_height"]    = $height ? $height : '';
 127              $value['target_ext']    = $ext;
 128              $value['image_name']    = $hash . '.' . $ext;
 129              $value['thumb_name']    = md5($hash.$value["max_width"].$value["max_height"].$phpwcms['sharpen_level'].$crop.$quality);
 130              $value['crop_image']    = $crop;
 131              
 132              $image = get_cached_image( $value, false, false );
 133              
 134              if(!empty($image[0])) {
 135                  headerRedirect(PHPWCMS_URL.PHPWCMS_IMAGES.$image[0], 301);
 136              }
 137              
 138          }
 139      
 140      }
 141  
 142  }
 143  
 144  // something did not work - redirect to transparent pixel image
 145  headerRedirect(PHPWCMS_URL.'img/leer.gif', 301);
 146  
 147  
 148  ?>