芝麻web文件管理V1.00
编辑当前文件:/home2/sdektunc/testcors.sdektun.com/libraries/src/Filesystem/FilesystemHelper.php
* @license GNU General Public License version 2 or later; see LICENSE.txt */ namespace Joomla\CMS\Filesystem; \defined('JPATH_PLATFORM') or die; /** * File system helper * * Holds support functions for the filesystem, particularly the stream * * @since 1.7.0 */ class FilesystemHelper { /** * Remote file size function for streams that don't support it * * @param string $url Link identifier * * @return mixed * * @link https://www.php.net/manual/en/function.filesize.php * @since 1.7.0 */ public static function remotefsize($url) { $sch = parse_url($url, PHP_URL_SCHEME); if (($sch !== 'http') && ($sch !== 'https') && ($sch !== 'ftp') && ($sch !== 'ftps')) { return false; } if (($sch === 'http') || ($sch === 'https')) { $headers = get_headers($url, 1); if ((!\array_key_exists('Content-Length', $headers))) { return false; } return $headers['Content-Length']; } if (($sch === 'ftp') || ($sch === 'ftps')) { $server = parse_url($url, PHP_URL_HOST); $port = parse_url($url, PHP_URL_PORT); $path = parse_url($url, PHP_URL_PATH); $user = parse_url($url, PHP_URL_USER); $pass = parse_url($url, PHP_URL_PASS); if ((!$server) || (!$path)) { return false; } if (!$port) { $port = 21; } if (!$user) { $user = 'anonymous'; } if (!$pass) { $pass = ''; } switch ($sch) { case 'ftp': $ftpid = ftp_connect($server, $port); break; case 'ftps': $ftpid = ftp_ssl_connect($server, $port); break; } if (!$ftpid) { return false; } $login = ftp_login($ftpid, $user, $pass); if (!$login) { return false; } $ftpsize = ftp_size($ftpid, $path); ftp_close($ftpid); if ($ftpsize == -1) { return false; } return $ftpsize; } } /** * Quick FTP chmod * * @param string $url Link identifier * @param integer $mode The new permissions, given as an octal value. * * @return mixed * * @link https://www.php.net/manual/en/function.ftp-chmod.php * @since 1.7.0 */ public static function ftpChmod($url, $mode) { $sch = parse_url($url, PHP_URL_SCHEME); if (($sch !== 'ftp') && ($sch !== 'ftps')) { return false; } $server = parse_url($url, PHP_URL_HOST); $port = parse_url($url, PHP_URL_PORT); $path = parse_url($url, PHP_URL_PATH); $user = parse_url($url, PHP_URL_USER); $pass = parse_url($url, PHP_URL_PASS); if ((!$server) || (!$path)) { return false; } if (!$port) { $port = 21; } if (!$user) { $user = 'anonymous'; } if (!$pass) { $pass = ''; } switch ($sch) { case 'ftp': $ftpid = ftp_connect($server, $port); break; case 'ftps': $ftpid = ftp_ssl_connect($server, $port); break; } if (!$ftpid) { return false; } $login = ftp_login($ftpid, $user, $pass); if (!$login) { return false; } $res = ftp_chmod($ftpid, $mode, $path); ftp_close($ftpid); return $res; } /** * Modes that require a write operation * * @return array * * @since 1.7.0 */ public static function getWriteModes() { return array('w', 'w+', 'a', 'a+', 'r+', 'x', 'x+'); } /** * Stream and Filter Support Operations * * Returns the supported streams, in addition to direct file access * Also includes Joomla! streams as well as PHP streams * * @return array Streams * * @since 1.7.0 */ public static function getSupported() { // Really quite cool what php can do with arrays when you let it... static $streams; if (!$streams) { $streams = array_merge(stream_get_wrappers(), self::getJStreams()); } return $streams; } /** * Returns a list of transports * * @return array * * @since 1.7.0 */ public static function getTransports() { // Is this overkill? return stream_get_transports(); } /** * Returns a list of filters * * @return array * * @since 1.7.0 */ public static function getFilters() { // Note: This will look like the getSupported() function with J! filters. // TODO: add user space filter loading like user space stream loading return stream_get_filters(); } /** * Returns a list of J! streams * * @return array * * @since 1.7.0 */ public static function getJStreams() { static $streams = array(); if (!$streams) { $files = new \DirectoryIterator(__DIR__ . '/Streams'); /** @var $file \DirectoryIterator */ foreach ($files as $file) { // Only load for php files. if (!$file->isFile() || $file->getExtension() !== 'php') { continue; } $streams[] = str_replace('stream', '', strtolower($file->getBasename('.php'))); } } return $streams; } /** * Determine if a stream is a Joomla stream. * * @param string $streamname The name of a stream * * @return boolean True for a Joomla Stream * * @since 1.7.0 */ public static function isJoomlaStream($streamname) { return \in_array($streamname, self::getJStreams()); } /** * Calculates the maximum upload file size and returns string with unit or the size in bytes * * Call it with JFilesystemHelper::fileUploadMaxSize(); * * @param bool $unitOutput This parameter determines whether the return value should be a string with a unit * * @return float|string The maximum upload size of files with the appropriate unit or in bytes * * @since 3.4 */ public static function fileUploadMaxSize($unitOutput = true) { static $max_size = false; static $output_type = true; if ($max_size === false || $output_type != $unitOutput) { $max_size = self::parseSize(ini_get('post_max_size')); $upload_max = self::parseSize(ini_get('upload_max_filesize')); if ($upload_max > 0 && ($upload_max < $max_size || $max_size == 0)) { $max_size = $upload_max; } if ($unitOutput == true) { $max_size = self::parseSizeUnit($max_size); } $output_type = $unitOutput; } return $max_size; } /** * Returns the size in bytes without the unit for the comparison * * @param string $size The size which is received from the PHP settings * * @return float The size in bytes without the unit * * @since 3.4 */ private static function parseSize($size) { $unit = preg_replace('/[^bkmgtpezy]/i', '', $size); $size = preg_replace('/[^0-9\.]/', '', $size); $return = round($size); if ($unit) { $return = round($size * pow(1024, stripos('bkmgtpezy', $unit[0]))); } return $return; } /** * Creates the rounded size of the size with the appropriate unit * * @param float $maxSize The maximum size which is allowed for the uploads * * @return string String with the size and the appropriate unit * * @since 3.4 */ private static function parseSizeUnit($maxSize) { $base = log($maxSize) / log(1024); $suffixes = array('', 'k', 'M', 'G', 'T'); return round(pow(1024, $base - floor($base)), 0) . $suffixes[floor($base)]; } }