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files >> //proc/self/root/home/papecmvm/public_html/plugins/ckeditor/kcfinder/lib/helper_httpCache.php
<?php /** This file is part of KCFinder project * * @desc HTTP cache helper class * @package KCFinder * @version 3.12 * @author Pavel Tzonkov <sunhater@sunhater.com> * @copyright 2010-2014 KCFinder Project * @license http://opensource.org/licenses/GPL-3.0 GPLv3 * @license http://opensource.org/licenses/LGPL-3.0 LGPLv3 * @link http://kcfinder.sunhater.com */ namespace kcfinder; class httpCache { const DEFAULT_TYPE = "text/html"; const DEFAULT_EXPIRE = 604800; // in seconds /** Cache a file. The $type parameter might define the MIME type of the file * or path to magic file to autodetect the MIME type. If you skip $type * parameter the method will try with the default magic file. Autodetection * of MIME type requires Fileinfo PHP extension used in file::getMimeType() * @param string $file * @param string $type * @param integer $expire * @param array $headers */ static function file($file, $type=null, $expire=null, array $headers=null) { $mtime = @filemtime($file); if ($mtime !== false) self::checkMTime($mtime); if ($type === null) { $magic = ((substr($type, 0, 1) == "/") || preg_match('/^[a-z]\:/i', $type)) ? $type : null; $type = file::getMimeType($file, $magic); if (!$type) $type = null; } self::content(@file_get_contents($file), $mtime, $type, $expire, $headers, false); } /** Cache the given $content with $mtime modification time. * @param binary $content * @param integer $mtime * @param string $type * @param integer $expire * @param array $headers * @param bool $checkMTime */ static function content($content, $mtime, $type=null, $expire=null, array $headers=null, $checkMTime=true) { if ($checkMTime) self::checkMTime($mtime); if ($type === null) $type = self::DEFAULT_TYPE; if ($expire === null) $expire = self::DEFAULT_EXPIRE; $size = strlen($content); $expires = gmdate("D, d M Y H:i:s", time() + $expire) . " GMT"; header("Content-Type: $type"); header("Expires: $expires"); header("Cache-Control: max-age=$expire"); header("Pragma: !invalid"); header("Content-Length: $size"); if ($headers !== null) foreach ($headers as $header) header($header); echo $content; } /** Check if given modification time is newer than client-side one. If not, * the method will tell the client to get the content from its own cache. * Afterwards the script process will be terminated. This feature requires * the PHP to be configured as Apache module. * @param integer $mtime * @param mixed $sendHeaders */ static function checkMTime($mtime, $sendHeaders=null) { header("Last-Modified: " . gmdate("D, d M Y H:i:s", $mtime) . " GMT"); $headers = function_exists("getallheaders") ? getallheaders() : (function_exists("apache_request_headers") ? apache_request_headers() : false); if (is_array($headers) && isset($headers['If-Modified-Since'])) { $client_mtime = explode(';', $headers['If-Modified-Since']); $client_mtime = @strtotime($client_mtime[0]); if ($client_mtime >= $mtime) { header('HTTP/1.1 304 Not Modified'); if (is_array($sendHeaders) && count($sendHeaders)) foreach ($sendHeaders as $header) header($header); elseif ($sendHeaders !== null) header($sendHeaders); die; } } } }
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