View file mail/file.php

<?php 
/**
 * Author - koder_alex
 * ISQ - 669906617
 * VK - https://vk.com/koder_alex
 * It is forbidden to give, sell, modify.
 */
	require $_SERVER['DOCUMENT_ROOT'] . '/sys/inc/home.php';
	require H.'sys/inc/start.php';
	require H.'sys/inc/compress.php';
	require H.'sys/inc/sess.php';
	require H.'sys/inc/settings.php';
	require H.'sys/inc/db_connect.php';
	function redirect($url = '/mail/', $msg = null, $type = 'ok')
	{
		if(!is_null($msg))
			$_SESSION['_VK_mail'] = array(
				'text' => $msg, 
				'type' => $type
				);
		exit(header('Location: ' . $url));
	}

	if(!(isset($_GET['folder']) && is_dir(H . 'mail/files/' . $_GET['folder']) && isset($_GET['hash']) && is_file(H . 'mail/files/' . $_GET['folder'] . '/' . $_GET['hash'])))
		redirect('/mail/', 'Ошибка доступа.', 'error');
	$file = mysql_fetch_assoc(mysql_query("SELECT name, extension, type, size FROM mail_files_vk WHERE `folder` = '" . $_GET['folder'] . "' AND `tmp_name` = '" . $_GET['hash'] . "' LIMIT 1"));
	if(ini_get('zlib.output_compression')) 
    	ini_set('zlib.output_compression', 'Off'); 

	header('Accept-Ranges: bytes');
    header("Pragma: public"); 
    header("Expires: 0"); 
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
    header("Cache-Control: private",false); 
    header("Content-Type: " . $file['type']); 
    if (preg_match('#^image/#i', $file['type']))
		header('Content-Disposition: filename="'.$file['name'].'.'.$file['extension'].'";');
	else
		header('Content-Disposition: attachment; filename="'.$file['name'].'.'.$file['extension'].'";');
    header("Content-Transfer-Encoding: binary"); 
    header("Content-Length: ".$file['size']); 
    ob_clean(); 
    flush(); 
    readfile(H . 'mail/files/' . $_GET['folder'] . '/' . $_GET['hash']); 
    clearstatcache();
 ?>