getImages.php

   1 <?php
   2
   3 function hexToRGB($hex) {
   4         $hex = str_replace("#", "", $hex);
   5         $color = array();
   6         if (strlen($hex) == 3) {
   7             $color['r'] = hexdec(substr($hex, 0, 1) . substr($hex,0,1));
   8             $color['g'] = hexdec(substr($hex, 1, 1) . substr($hex,1,1));
   9             $color['b'] = hexdec(substr($hex, 2, 1) . substr($hex,2,1));
  10         } else if (strlen($hex) == 6) {
  11             $color['r'] = hexdec(substr($hex, 0, 2));
  12             $color['g'] = hexdec(substr($hex, 2, 2));
  13             $color['b'] = hexdec(substr($hex, 4, 2));
  14         }
  15         return $color;
  16 }
  17
  18
  19 if (!isset($_GET['color']) || $_GET['color'] == '' || !preg_match('/^([a-fA-F0-9]){3}(([a-fA-F0-9]){3})?\b/',$_GET['color'])) {
  20     exit(0);
  21 }
  22 $color = $_GET['color'];
  23 if (!isset($_GET['filename']) || !preg_match('/^[a-z0-9-_]+\.png$/', strtolower($_GET['filename']))) {
  24     echo "Incorrect filename";
  25     exit(0);
  26 }
  27 $filename = $_GET['filename'];
  28 if (file_exists(dirname(__FILE__).'/cache/'.$color.'-'.$filename) && is_readable(dirname(__FILE__).'/cache/'.$color.'-'.$filename)) {
  29     header('Content-type: image/png');
  30     readfile(dirname(__FILE__).'/cache/'.$color.'-'.$filename);
  31     exit(0);
  32 }
  33 if (isset($_GET['tracker'])) {
  34         $original = dirname(__FILE__).'/images/vehicules/color/'.$filename;
  35         if (!file_exists($original)) {
  36                 $original = dirname(__FILE__).'/images/vehicules/'.$filename;
  37         }
  38 } elseif (isset($_GET['marine'])) {
  39         //$original = dirname(__FILE__).DIRECTORY_SEPARATOR.'images'.DIRECTORY_SEPARATOR.'vehicules'.DIRECTORY_SEPARATOR.$filename;
  40         //$original = dirname(__FILE__).'/images/vehicules/color/'.$filename;
  41         $original = dirname(__FILE__).'/images/marine/'.$filename;
  42 } elseif (isset($_GET['satellite'])) {
  43         //$original = dirname(__FILE__).DIRECTORY_SEPARATOR.'images'.DIRECTORY_SEPARATOR.'vehicules'.DIRECTORY_SEPARATOR.$filename;
  44         $original = dirname(__FILE__).'/images/satellites/'.$filename;
  45 } else {
  46         $original = dirname(__FILE__).'/images/aircrafts/new/'.$filename;
  47 }
  48 if (!file_exists($original)) {
  49     echo "File not found";
  50 }
  51
  52 if (extension_loaded('gd') && function_exists('gd_info')) {
  53     $image = imagecreatefrompng($original);
  54     $index = imagecolorexact($image,26,49,81);
  55     if ($index < 0) {
  56         $index = imagecolorexact($image,25,49,79);
  57     }
  58     if ($index < 0) {
  59         $index = imagecolorexact($image,0,0,0);
  60     }
  61     $c = hexToRGB($color);
  62     imagecolorset($image,$index,$c['r'],$c['g'],$c['b']);
  63  /*
  64     $ig = imagecolorat($image, 0, 0);
  65     imagecolortransparent($image, $ig);
  66    */
  67
  68     header('Content-type: image/png');
  69     if (isset($_GET['resize']) && function_exists('imagecopyresampled')) {
  70         $resize = filter_input(INPUT_GET,'resize',FILTER_SANITIZE_NUMBER_INT);
  71         $newimg = imagecreatetruecolor($resize,$resize);
  72         imagealphablending($newimg, false);
  73         imagesavealpha($newimg, true);
  74         imagecopyresampled($newimg,$image,0,0,0,0,15,15,imagesx($image),imagesy($image));
  75         if (isset($_GET['heading'])) {
  76             $heading = filter_input(INPUT_GET,'heading',FILTER_SANITIZE_NUMBER_INT);
  77             $rotation = imagerotate($newimg,$heading,imageColorAllocateAlpha($newimg,0,0,0,127));
  78             imagealphablending($rotation, false);
  79             imagesavealpha($rotation, true);
  80             imagepng($rotation);
  81             imagedestroy($newimg);
  82             imagedestroy($image);
  83             imagedestroy($rotation);
  84
  85         } else {
  86             imagepng($newimg);
  87             imagedestroy($newimg);
  88             imagedestroy($image);
  89         }
  90     } else {
  91         imagealphablending($image, false);
  92         imagesavealpha($image, true);
  93         imagepng($image);
  94         imagepng($image);
  95         if (is_writable(dirname(__FILE__).'/cache')) {
  96             imagepng($image,dirname(__FILE__).'/cache/'.$color.'-'.$filename);
  97         }
  98         imagedestroy($image);
  99     }
 100 } else {
 101     header('Content-type: image/png');
 102     if (isset($_GET['tracker'])) {
 103         readfile(dirname(__FILE__).'/images/vehicules/'.$filename);
 104     } elseif (isset($_GET['marine'])) {
 105         readfile(dirname(__FILE__).'/images/vehicules/'.$filename);
 106     } elseif (isset($_GET['satellite'])) {
 107         readfile(dirname(__FILE__).'/images/satellites/'.$filename);
 108     } else {
 109         if ($color == 'FF0000') readfile(dirname(__FILE__).'/images/aircrafts/selected/'.$filename);
 110         else readfile(dirname(__FILE__).'/images/aircrafts/'.$filename);
 111     }
 112 }
 113 ?>