transformation_wrapper.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @version $Id$
   6  * @package phpMyAdmin
   7  */
   8
   9 /**
  10  *
  11  */
  12 define('IS_TRANSFORMATION_WRAPPER', true);
  13
  14 /**
  15  * Gets a core script and starts output buffering work
  16  */
  17 require_once './libraries/common.inc.php';
  18 require_once './libraries/relation.lib.php'; // foreign keys
  19 require_once './libraries/transformations.lib.php'; // Transformations
  20 $cfgRelation = PMA_getRelationsParam();
  21
  22 /**
  23  * Ensures db and table are valid, else moves to the "parent" script
  24  */
  25 require_once './libraries/db_table_exists.lib.php';
  26
  27
  28 /**
  29  * Get the list of the fields of the current table
  30  */
  31 PMA_DBI_select_db($db);
  32 $table_def = PMA_DBI_query('SHOW FIELDS FROM ' . PMA_backquote($table), null, PMA_DBI_QUERY_STORE);
  33 if (isset($where_clause)) {
  34     $result      = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $where_clause . ';', null, PMA_DBI_QUERY_STORE);
  35     $row         = PMA_DBI_fetch_assoc($result);
  36 } else {
  37     $result      = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' LIMIT 1;', null, PMA_DBI_QUERY_STORE);
  38     $row         = PMA_DBI_fetch_assoc($result);
  39 }
  40
  41 // No row returned
  42 if (!$row) {
  43     exit;
  44 } // end if (no record returned)
  45
  46 $default_ct = 'application/octet-stream';
  47
  48 if ($cfgRelation['commwork'] && $cfgRelation['mimework']) {
  49     $mime_map = PMA_getMime($db, $table);
  50     $mime_options = PMA_transformation_getOptions((isset($mime_map[$transform_key]['transformation_options']) ? $mime_map[$transform_key]['transformation_options'] : ''));
  51
  52     foreach ($mime_options AS $key => $option) {
  53         if (substr($option, 0, 10) == '; charset=') {
  54             $mime_options['charset'] = $option;
  55         }
  56     }
  57 }
  58
  59 // For re-usability, moved http-headers and stylesheets
  60 // to a seperate file. It can now be included by libraries/header.inc.php,
  61 // querywindow.php.
  62
  63 require_once './libraries/header_http.inc.php';
  64 // [MIME]
  65 if (isset($ct) && !empty($ct)) {
  66     $content_type = 'Content-Type: ' . $ct;
  67 } else {
  68     $content_type = 'Content-Type: ' . (isset($mime_map[$transform_key]['mimetype']) ? str_replace('_', '/', $mime_map[$transform_key]['mimetype']) : $default_ct) . (isset($mime_options['charset']) ? $mime_options['charset'] : '');
  69 }
  70 header($content_type);
  71
  72 if (isset($cn) && !empty($cn)) {
  73     header('Content-Disposition: attachment; filename=' . $cn);
  74 }
  75
  76 if (!isset($resize)) {
  77     echo $row[$transform_key];
  78 } else {
  79     // if image_*__inline.inc.php finds that we can resize,
  80     // it sets $resize to jpeg or png
  81
  82     $srcImage = imagecreatefromstring($row[$transform_key]);
  83     $srcWidth = ImageSX($srcImage);
  84     $srcHeight = ImageSY($srcImage);
  85
  86     // Check to see if the width > height or if width < height
  87     // if so adjust accordingly to make sure the image
  88     // stays smaller then the $newWidth and $newHeight
  89
  90     $ratioWidth = $srcWidth/$newWidth;
  91     $ratioHeight = $srcHeight/$newHeight;
  92
  93     if ($ratioWidth < $ratioHeight){
  94         $destWidth = $srcWidth/$ratioHeight;
  95         $destHeight = $newHeight;
  96     } else {
  97         $destWidth = $newWidth;
  98         $destHeight = $srcHeight/$ratioWidth;
  99     }
 100
 101     if ($resize) {
 102         $destImage = ImageCreateTrueColor($destWidth, $destHeight);
 103     }
 104
 105 //    ImageCopyResized($destImage, $srcImage, 0, 0, 0, 0, $destWidth, $destHeight, $srcWidth, $srcHeight);
 106 // better quality but slower:
 107     ImageCopyResampled($destImage, $srcImage, 0, 0, 0, 0, $destWidth, $destHeight, $srcWidth, $srcHeight);
 108
 109     if ($resize == 'jpeg') {
 110         ImageJPEG($destImage, '', 75);
 111     }
 112     if ($resize == 'png') {
 113         ImagePNG($destImage);
 114     }
 115     ImageDestroy($srcImage);
 116     ImageDestroy($destImage);
 117 }
 118 ?>