Ticket #728: upload.php

<?php
/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2006 Frederico Caldeira Knabben
 *
 * Licensed under the terms of the GNU Lesser General Public License:
 *              http://www.opensource.org/licenses/lgpl-license.php
 *
 * For further information visit:
 *              http://www.fckeditor.net/
 *
 * "Support Open Source software. What about a donation today?"
 *
 * File Name: upload.php
 *      This is the "File Uploader" for PHP.
 *
 * File Authors:
 *              Frederico Caldeira Knabben (fredck@fckeditor.net)
 */

require('config.php') ;
require('util.php') ;

// This is the function that sends the results of the uploading process.
function SendResults( $errorNumber, $fileUrl = '', $fileName = '', $customMsg = '' )
{
        echo '<script type="text/javascript">' ;
        echo 'window.parent.OnUploadCompleted(' . $errorNumber . ',"' . str_replace( '"', '\\"', $fileUrl ) . '","' . str_replace( '"', '\\"', $fileName ) . '", "' . str_replace( '"', '\\"', $customMsg ) . '") ;' ;
        echo '</script>' ;
        exit ;
}

// Check if this uploader has been enabled.
if ( !$Config['Enabled'] )
        SendResults( '1', '', '', 'This file uploader is disabled. Please check the "editor/filemanager/upload/php/config.php" file' ) ;

// Check if the file has been correctly uploaded.
if ( !isset( $_FILES['NewFile'] ) || is_null( $_FILES['NewFile']['tmp_name'] ) || $_FILES['NewFile']['name'] == '' )
        SendResults( '202' ) ;

// Check for error
if(isset($_FILES['NewFile']['error']) && !empty($_FILES['NewFile']['error']))
{
        switch($_FILES['NewFile']['error'])
        {
                case 1:
                        SendResults('1','','',"Upload error: " . $_FILES['NewFile']['name'] . " exceeds the the size set on the webserver");
                        break;

                case 2:
                        SendResults('1','','',"Upload error: " . $_FILES['NewFile']['name'] . " exceeds the the size set by the upload script");
                        break;

                case 3:
                        SendResults('1','','',"Upload error: The uploaded file was only partially uploaded");
                        break;

                case 4:
                        SendResults('1','','',"Upload error: No file was uploaded");
                        break;

                case 6:
                        SendResults('1','','',"Upload error: Missing a temporary folder");
                        break;

                case 7:
                        SendResults('1','','',"Upload error: Failed to write file to disk");
                        break;
        }
}


// Get the posted file.
$oFile = $_FILES['NewFile'] ;

// Get the uploaded file name and extension.
$sFileName = $oFile['name'] ;
$sOriginalFileName = $sFileName ;
$sExtension = substr( $sFileName, ( strrpos($sFileName, '.') + 1 ) ) ;
$sExtension = strtolower( $sExtension ) ;

// The the file type (from the QueryString, by default 'File').
$sType = isset( $_GET['Type'] ) ? $_GET['Type'] : 'File' ;

// Check if it is an allowed type.
if ( !in_array( $sType, array('File','Image','Flash','Media') ) )
    SendResults( 1, '', '', 'Invalid type specified' ) ;

// Get the allowed and denied extensions arrays.
$arAllowed      = $Config['AllowedExtensions'][$sType] ;
$arDenied       = $Config['DeniedExtensions'][$sType] ;

// Check if it is an allowed extension.
if ( ( count($arAllowed) > 0 && !in_array( $sExtension, $arAllowed ) ) || ( count($arDenied) > 0 && in_array( $sExtension, $arDenied ) ) )
        SendResults( '202' ) ;

$sErrorNumber   = '0' ;
$sFileUrl               = '' ;

// Initializes the counter used to rename the file, if another one with the same name already exists.
$iCounter = 0 ;

// The the target directory.
if ( isset( $Config['UserFilesAbsolutePath'] ) )
        $sServerDir = $Config['UserFilesAbsolutePath'] ;
else
        $sServerDir = GetRootPath() . $Config["UserFilesPath"] ;

while ( true )
{
        // Compose the file path.
        $sFilePath = $sServerDir . "/" . $sType . "/" . $sFileName ;

        // If a file with that name already exists.
        if ( is_file( $sFilePath ) )
        {
                $iCounter++ ;
                $sFileName = RemoveExtension( $sOriginalFileName ) . '(' . $iCounter . ').' . $sExtension ;
                $sErrorNumber = '201' ;
        }
        else
        {
                move_uploaded_file( $oFile['tmp_name'], $sFilePath ) ;

                if ( is_file( $sFilePath ) )
                {
                        $oldumask = umask(0) ;
                        chmod( $sFilePath, 0777 ) ;
                        umask( $oldumask ) ;
                }

                $sFileUrl = $Config["UserFilesPath"] . $sType . "/" . $sFileName ;

                break ;
        }
}
print $sFileName;
SendResults( $sErrorNumber, $sFileUrl, $sFileName,"xxx" ) ;
?>