transformation_wrapper.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5 $is_transformation_wrapper = true;
   6
   7 /**
   8  * Get the variables sent or posted to this script and displays the header
   9  */
  10 require_once('./libraries/grab_globals.lib.php');
  11
  12 /**
  13  * Gets a core script and starts output buffering work
  14  */
  15 require_once('./libraries/common.lib.php');
  16 require_once('./libraries/relation.lib.php'); // foreign keys
  17 require_once('./libraries/transformations.lib.php'); // Transformations
  18 $cfgRelation = PMA_getRelationsParam();
  19
  20 /**
  21  * Ensures db and table are valid, else moves to the "parent" script
  22  */
  23 require_once('./libraries/db_table_exists.lib.php');
  24
  25
  26 /**
  27  * Get the list of the fields of the current table
  28  */
  29 PMA_DBI_select_db($db);
  30 $table_def = PMA_DBI_query('SHOW FIELDS FROM ' . PMA_backquote($table), NULL, PMA_DBI_QUERY_STORE);
  31 if (isset($primary_key)) {
  32     $result      = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' WHERE ' . $primary_key . ';', NULL, PMA_DBI_QUERY_STORE);
  33     $row         = PMA_DBI_fetch_assoc($result);
  34 } else {
  35     $result      = PMA_DBI_query('SELECT * FROM ' . PMA_backquote($table) . ' LIMIT 1;', NULL, PMA_DBI_QUERY_STORE);
  36     $row         = PMA_DBI_fetch_assoc($result);
  37 }
  38
  39 // No row returned
  40 if (!$row) {
  41     exit;
  42 } // end if (no record returned)
  43
  44 $default_ct = 'application/octet-stream';
  45
  46 if ($cfgRelation['commwork'] && $cfgRelation['mimework']) {
  47     $mime_map = PMA_getMime($db, $table);
  48     $mime_options = PMA_transformation_getOptions((isset($mime_map[urldecode($transform_key)]['transformation_options']) ? $mime_map[urldecode($transform_key)]['transformation_options'] : ''));
  49
  50     foreach ($mime_options AS $key => $option) {
  51         if (substr($option, 0, 10) == '; charset=') {
  52             $mime_options['charset'] = $option;
  53         }
  54     }
  55 }
  56
  57 // garvin: For re-usability, moved http-headers and stylesheets
  58 // to a seperate file. It can now be included by header.inc.php,
  59 // queryframe.php, querywindow.php.
  60
  61 require_once('./libraries/header_http.inc.php');
  62 // [MIME]
  63 if (isset($ct) && !empty($ct)) {
  64     $content_type = 'Content-Type: ' . urldecode($ct);
  65 } else {
  66     $content_type = 'Content-Type: ' . (isset($mime_map[urldecode($transform_key)]['mimetype']) ? str_replace('_', '/', $mime_map[urldecode($transform_key)]['mimetype']) : $default_ct) . (isset($mime_options['charset']) ? $mime_options['charset'] : '');
  67 }
  68
  69 if (isset($cn) && !empty($cn)) {
  70     $content_type .= "\n" . 'Content-Disposition: attachment; filename=' . urldecode($cn);
  71 }
  72
  73 header($content_type);
  74
  75 if (!isset($resize)) {
  76     echo $row[urldecode($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[urldecode($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( $destImage );
 116 }
 117
 118 /**
 119  * Close MySql non-persistent connections
 120  */
 121 if (isset($GLOBALS['dbh']) && $GLOBALS['dbh']) {
 122     @PMA_DBI_close($GLOBALS['dbh']);
 123 }
 124 if (isset($GLOBALS['userlink']) && $GLOBALS['userlink']) {
 125     @PMA_DBI_close($GLOBALS['userlink']);
 126 }
 127 ?>