.
*/
define('IMAGES_DIR', 'images');
$shortPath = $_SERVER["PATH_INFO"];
if ($shortPath == '/') $shortPath = '';
// extra security check to avoid /photos/index/../.. like urls, maybe useless but..
if (strpos($shortPath, '..') !== false) die(".. found in url");
if (! is_file(IMAGES_DIR.$shortPath)) {
header("HTTP/1.1 404 Not Found");
die("File Not Found");
}
$scriptPath = $_SERVER["SCRIPT_NAME"];
// get all images in an array
$images = array();
$files = scandir(IMAGES_DIR.dirname($shortPath));
foreach ($files as $file) {
$ext = strtolower(substr($file, -4));
if ($ext == ".jpg" or $ext == ".png")
$images[] = $file;
}
// find the image position
$pos = array_search(basename($shortPath), $images);
if ($pos === false) die("Image not found");
// get prev and next images
$prevImage = '';
$nextImage = '';
if ($pos > 0)
$prevImage = $images[$pos-1];
if ($pos < sizeof($images)-1)
$nextImage = $images[$pos+1];
// template variables
$imageUrl = dirname($scriptPath)."/".IMAGES_DIR.$shortPath;
if ($nextImage === '') {
$nextImageUrl = '';
$nextPageUrl = '';
} else {
$nextImageUrl = dirname($scriptPath)."/".IMAGES_DIR.dirname($shortPath)."/$nextImage";
$nextPageUrl = dirname($_SERVER["REQUEST_URI"])."/$nextImage";
}
if ($prevImage === '') $prevPageUrl = '';
else $prevPageUrl = dirname($_SERVER["REQUEST_URI"])."/$prevImage";
$directoryUrl = dirname($_SERVER["SCRIPT_NAME"])."/index.php".dirname($shortPath);
header('Content-Type: text/html; charset=utf-8');
header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + 3600));
?>
