*/
// error_reporting(E_ALL);
if (preg_match("/.jpg$|.jpeg$/i", $_GET['filename'])) header('Content-type: image/jpeg');
if (preg_match("/.gif$/i", $_GET['filename'])) header('Content-type: image/gif');
if (preg_match("/.png$/i", $_GET['filename'])) header('Content-type: image/png');
// Display error image if file isn't found
if (!is_file($_GET['filename'])) {
header('Content-type: image/jpeg');
$errorimage = ImageCreateFromJPEG('images/questionmark.jpg');
ImageJPEG($errorimage,null,90);
}
// Display error image if file exists, but can't be opened
if (substr(decoct(fileperms($_GET['filename'])), -1, strlen(fileperms($_GET['filename']))) < 4 OR substr(decoct(fileperms($_GET['filename'])), -3,1) < 4) {
header('Content-type: image/jpeg');
$errorimage = ImageCreateFromJPEG('images/cannotopen.jpg');
ImageJPEG($errorimage,null,90);
}
// Define variables
$target = "";
$xoord = 0;
$yoord = 0;
if ($_GET['size'] == "") $_GET['size'] = 120; //
$imgsize = GetImageSize($_GET['filename']);
$width = $imgsize[0];
$height = $imgsize[1];
if ($width > $height) { // If the width is greater than the height it’s a horizontal picture
$xoord = ceil(($width-$height)/2);
$width = $height; // Then we read a square frame that equals the width
} else {
$yoord = ceil(($height-$width)/2);
$height = $width;
}
// Rotate JPG pictures
if (preg_match("/.jpg$|.jpeg$/i", $_GET['filename'])) {
if (function_exists('exif_read_data') && function_exists('imagerotate')) {
$exif = exif_read_data($_GET['filename']);
$ort = $exif['IFD0']['Orientation'];
$degrees = 0;
switch($ort)
{
case 6: // 90 rotate right
$degrees = 270;
break;
case 8: // 90 rotate left
$degrees = 90;
break;
}
if ($degrees != 0) $target = imagerotate($target, $degrees, 0);
}
}
$target = ImageCreatetruecolor($_GET['size'],$_GET['size']);
if (preg_match("/.jpg$/i", $_GET['filename'])) $source = ImageCreateFromJPEG($_GET['filename']);
if (preg_match("/.gif$/i", $_GET['filename'])) $source = ImageCreateFromGIF($_GET['filename']);
if (preg_match("/.png$/i", $_GET['filename'])) $source = ImageCreateFromPNG($_GET['filename']);
imagecopyresampled($target,$source,0,0,$xoord,$yoord,$_GET['size'],$_GET['size'],$width,$height);
imagedestroy($source);
if (preg_match("/.jpg$/i", $_GET['filename'])) ImageJPEG($target,null,90);
if (preg_match("/.gif$/i", $_GET['filename'])) ImageGIF($target,null,90);
if (preg_match("/.png$/i", $_GET['filename'])) ImageJPEG($target,null,90); // Using ImageJPEG on purpose
imagedestroy($target);
?>