transformation_wrapper.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @version $Id$
   6  */
   7
   8 /**
   9  *
  10  */
  11 define('IS_TRANSFORMATION_WRAPPER', true);
  12
  13 /**
  14  * Gets a core script and starts output buffering work
  15  */
  16 require_once './libraries/common.inc.php';
  17 require_once './libraries/relation.lib.php'; // foreign keys
  18 require_once './libraries/transformations.lib.php'; // Transformations
  19 $cfgRelation = PMA_getRelationsParam();
  20
  21 /**
  22  * Ensures db and table are valid, else moves to the "parent" script
  23  */
  24 require_once './libraries/db_table_exists.lib.php';
  25
  26
  27 /**
  28  * Get the list of the fields of the current table
  29  */
  30 PMA_DBI_select_db($db);
  31 $table_def = PMA_DBI_query('SHOW FIELDS FROM ' . PMA_backquote($table), null, PMA_DBI_QUERY_STORE);
  32 if (isset($primary_key)) {
  33     $result      = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $primary_key . ';', null, PMA_DBI_QUERY_STORE);
  34     $row         = PMA_DBI_fetch_assoc($result);
  35 } else {
  36     $result      = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' LIMIT 1;', null, PMA_DBI_QUERY_STORE);
  37     $row         = PMA_DBI_fetch_assoc($result);
  38 }
  39
  40 // No row returned
  41 if (!$row) {
  42     exit;
  43 } // end if (no record returned)
  44
  45 $default_ct = 'application/octet-stream';
  46
  47 if ($cfgRelation['commwork'] && $cfgRelation['mimework']) {
  48     $mime_map = PMA_getMime($db, $table);
  49     $mime_options = PMA_transformation_getOptions((isset($mime_map[$transform_key]['transformation_options']) ? $mime_map[$transform_key]['transformation_options'] : ''));
  50
  51     foreach ($mime_options AS $key => $option) {
  52         if (substr($option, 0, 10) == '; charset=') {
  53             $mime_options['charset'] = $option;
  54         }
  55     }
  56 }
  57
  58 // garvin: For re-usability, moved http-headers and stylesheets
  59 // to a seperate file. It can now be included by libraries/header.inc.php,
  60 // querywindow.php.
  61
  62 require_once './libraries/header_http.inc.php';
  63 // [MIME]
  64 if (isset($ct) && !empty($ct)) {
  65     $content_type = 'Content-Type: ' . $ct;
  66 } else {
  67     $content_type = 'Content-Type: ' . (isset($mime_map[$transform_key]['mimetype']) ? str_replace('_', '/', $mime_map[$transform_key]['mimetype']) : $default_ct) . (isset($mime_options['charset']) ? $mime_options['charset'] : '');
  68 }
  69 header($content_type);
  70
  71 if (isset($cn) && !empty($cn)) {
  72     header('Content-Disposition: attachment; filename=' . $cn);
  73 }
  74
  75 if (!isset($resize)) {
  76     echo $row[$transform_key];
  77 } else {
  78     // if image_*__inline.inc.php finds that we can resize,
  79     // it sets $resize to jpeg or png
  80
  81     $srcImage = imagecreatefromstring($row[$transform_key]);
  82     $srcWidth = ImageSX($srcImage);
  83     $srcHeight = ImageSY($srcImage);
  84
  85     // Check to see if the width > height or if width < height
  86     // if so adjust accordingly to make sure the image
  87     // stays smaller then the $newWidth and $newHeight
  88
  89     $ratioWidth = $srcWidth/$newWidth;
  90     $ratioHeight = $srcHeight/$newHeight;
  91
  92     if ($ratioWidth < $ratioHeight){
  93         $destWidth = $srcWidth/$ratioHeight;
  94         $destHeight = $newHeight;
  95     } else {
  96         $destWidth = $newWidth;
  97         $destHeight = $srcHeight/$ratioWidth;
  98     }
  99
 100     if ($resize) {
 101         $destImage = ImageCreateTrueColor($destWidth, $destHeight);
 102     }
 103
 104 //    ImageCopyResized($destImage, $srcImage, 0, 0, 0, 0, $destWidth, $destHeight, $srcWidth, $srcHeight);
 105 // better quality but slower:
 106     ImageCopyResampled($destImage, $srcImage, 0, 0, 0, 0, $destWidth, $destHeight, $srcWidth, $srcHeight);
 107
 108     if ($resize == 'jpeg') {
 109         ImageJPEG($destImage, '', 75);
 110     }
 111     if ($resize == 'png') {
 112         ImagePNG($destImage);
 113     }
 114     ImageDestroy($srcImage);
 115     ImageDestroy($destImage);
 116 }
 117 ?>