134 lines
3.3 KiB
PHP
Executable File
134 lines
3.3 KiB
PHP
Executable File
<?php
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/**
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* @version $Id: file.php 13031 2009-10-02 21:54:22Z louis $
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* @package Joomla.Framework
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* @subpackage FileSystem
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* @copyright Copyright (C) 2005 - 2009 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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// Check to ensure this file is within the rest of the framework
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if( !defined( '_JEXEC' ) && !defined( '_VALID_MOS' ) ) die( 'Restricted access' );
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require_once(dirname(__FILE__).'/path.php');
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/**
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* A File handling class
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*
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* @static
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* @package Joomla.Framework
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* @subpackage FileSystem
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* @since 1.5
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*/
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class extFile
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{
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/**
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* Gets the extension of a file name
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*
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* @param string $file The file name
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* @return string The file extension
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* @since 1.5
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*/
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function getExt($file) {
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$dot = strrpos($file, '.') + 1;
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return substr($file, $dot);
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}
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/**
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* Strips the last extension off a file name
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*
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* @param string $file The file name
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* @return string The file name without the extension
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* @since 1.5
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*/
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function stripExt($file) {
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return preg_replace('#\.[^.]*$#', '', $file);
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}
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/**
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* Makes file name safe to use
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*
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* @param string $file The name of the file [not full path]
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* @return string The sanitised string
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* @since 1.5
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*/
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function makeSafe($file) {
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$regex = array('#(\.){2,}#', '#[^A-Za-z0-9\.\_\- ]#', '#^\.#');
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return preg_replace($regex, '', $file);
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}
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/**
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* Read the contents of a file
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*
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* @param string $filename The full file path
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* @param boolean $incpath Use include path
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* @param int $amount Amount of file to read
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* @param int $chunksize Size of chunks to read
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* @param int $offset Offset of the file
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* @return mixed Returns file contents or boolean False if failed
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* @since 1.5
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*/
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function read($filename, $incpath = false, $amount = 0, $chunksize = 8192, $offset = 0)
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{
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// Initialize variables
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$data = null;
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if($amount && $chunksize > $amount) { $chunksize = $amount; }
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if (false === $fh = fopen($filename, 'rb', $incpath)) {
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JError::raiseWarning(21, 'extFile::read: '.JText::_('Unable to open file') . ": '$filename'");
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return false;
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}
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clearstatcache();
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if($offset) fseek($fh, $offset);
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if ($fsize = @ filesize($filename)) {
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if($amount && $fsize > $amount) {
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$data = fread($fh, $amount);
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} else {
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$data = fread($fh, $fsize);
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}
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} else {
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$data = '';
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$x = 0;
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// While its:
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// 1: Not the end of the file AND
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// 2a: No Max Amount set OR
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// 2b: The length of the data is less than the max amount we want
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while (!feof($fh) && (!$amount || strlen($data) < $amount)) {
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$data .= fread($fh, $chunksize);
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}
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}
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fclose($fh);
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return $data;
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}
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/**
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* Wrapper for the standard file_exists function
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*
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* @param string $file File path
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* @return boolean True if path is a file
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* @since 1.5
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*/
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function exists($file)
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{
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return is_file(extPath::clean($file));
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}
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/**
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* Returns the name, sans any path
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*
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* param string $file File path
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* @return string filename
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* @since 1.5
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*/
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function getName($file) {
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$slash = strrpos($file, DS);
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if ($slash !== false) {
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return substr($file, $slash + 1);
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} else {
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return $file;
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}
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}
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}
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