screenshot.php

<?php

/*
// +--------------------------------------------------------------------------+
// | Project:    TBDevYSE - TBDev Yuna Scatari Edition                        |
// +--------------------------------------------------------------------------+
// | This file is part of TBDevYSE. TBDevYSE is based on TBDev,               |
// | originally by RedBeard of TorrentBits, extensively modified by           |
// | Gartenzwerg.                                                             |
// |                                                                          |
// | TBDevYSE is free software; you can redistribute it and/or modify         |
// | it under the terms of the GNU General Public License as published by     |
// | the Free Software Foundation; either version 2 of the License, or        |
// | (at your option) any later version.                                      |
// |                                                                          |
// | TBDevYSE is distributed in the hope that it will be useful,              |
// | but WITHOUT ANY WARRANTY; without even the implied warranty of           |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            |
// | GNU General Public License for more details.                             |
// |                                                                          |
// | You should have received a copy of the GNU General Public License        |
// | along with TBDevYSE; if not, write to the Free Software Foundation,      |
// | Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            |
// +--------------------------------------------------------------------------+
// |                                               Do not remove above lines! |
// +--------------------------------------------------------------------------+
*/

# Constants
define('IMAGE_BASE', 'torrents/images');
define('MAX_WIDTH', 150);
define('MAX_HEIGHT', 120);

# Get image location
$image_file = str_replace('..', '', $_SERVER['QUERY_STRING']);
$image_path = IMAGE_BASE . "/$image_file";

# Load image
$img = null;
$tmp = explode('.', $image_path);
$ext = strtolower(end($tmp));
if ($ext == 'jpg' || $ext == 'jpeg') {
	$img = @imagecreatefromjpeg($image_path);
} else if ($ext == 'png') {
	$img = @imagecreatefrompng($image_path);
# Only if your version of GD includes GIF support
} else if ($ext == 'gif') {
	$img = @imagecreatefromgif($image_path);
}

# If an image was successfully loaded, test the image for size
if ($img) {
	# Get image size and scale ratio
	$width = imagesx($img);
	$height = imagesy($img);
	$scale = min(MAX_WIDTH / $width, MAX_HEIGHT / $height);

	# If the image is larger than the max shrink it
	if ($scale < 1) {
		if (($width > MAX_WIDTH) OR ($height > MAX_HEIGHT)) {
			$new_width = floor($scale * $width);
			$new_height = floor($scale * $height);
			# Create a new temporary image
			$tmp_img = imagecreatetruecolor($new_width, $new_height);
			# Copy and resize old image into new image
			imagecopyresampled($tmp_img, $img, 0, 0, 0, 0,
							   $new_width, $new_height, $width, $height);
			imagedestroy($img);
			$img = $tmp_img;
		}
	} else {
		header("Location: $image_path");
		exit;
	}
}

# Create error image if necessary
if (!$img) {
	$img = imagecreate(MAX_WIDTH, MAX_HEIGHT);
	imagecolorallocate($img, 0, 0, 0);
	$c = imagecolorallocate($img, 70, 70, 70);
	imageline($img, 0, 0, MAX_WIDTH, MAX_HEIGHT, $c2);
	imageline($img, MAX_WIDTH, 0, 0, MAX_HEIGHT, $c2);
}

# Display the image
header("Content-type: image/jpeg");
imagejpeg($img);
?>