How to enable uploads in FCKEditor

NOTE: with the module IMCE Wysiwyg API bridge you can now use IMCE instead of native upload.

Edit wysiwyg/editors/fckeditor.inc to enable the upload components

function wysiwyg_fckeditor_settings($editor, $config, $theme) {
  $settings = array(
    'EditorPath' => base_path() . $editor['library path'] .'/',
    'SkinPath' => base_path() . $editor['library path'] .'/editor/skins/'. $theme .'/',
    'Width' => '100%',
    'Height' => 420,
    'LinkBrowser' => TRUE,
    'LinkUpload' => TRUE,
    'ImageBrowser' => TRUE,
    'ImageUpload' => TRUE,
    'FlashBrowser' => TRUE,
    'FlashUpload' => TRUE,
  );

Edit sites/all/modules/fckeditor/fckeditor/editor/filemanager/connectors/php/config.php.

NOTE: the file is now in sites/all/libraries/fckeditor/editor/filemanager/connectors/php/config.php.

Enable uploads; set as follows:

// SECURITY: You must explicitly enable this "connector". (Set it to "true").
// WARNING: don't just set "$Config['Enabled'] = true ;", you must be sure that only
//        authenticated users can access this file or use some kind of session checking.
$Config['Enabled'] = true ;

// Path to user files relative to the document root.
$Config['UserFilesPath'] = '/files path/' ;

// Fill the following value it you prefer to specify the absolute path for the
// user files directory. Useful if you are using a virtual directory, symbolic
// link or alias. Examples: 'C:\\MySite\\userfiles\\' or '/root/mysite/userfiles/'.
// Attention: The above 'UserFilesPath' must point to the same directory.
$Config['UserFilesAbsolutePath'] = '/your root path/files path/' ;

The quick uploader, by default, puts all of its files in the directory above that which the file browser can access. Set the lines at the end (Configuration settings for each Resource Type) as follows:

$Config['AllowedExtensions']['File']    = array('7z', 'aiff', 'asf', 'avi', 'bmp', 'csv', 'doc', 'fla', 'flv', 'gif', 'gz', 'gzip', 'jpeg', 'jpg', 'mid', 'mov', 'mp3', 'mp4', 'mpc', 'mpeg', 'mpg', 'ods', 'odt', 'pdf', 'png', 'ppt', 'pxd', 'qt', 'ram', 'rar', 'rm', 'rmi', 'rmvb', 'rtf', 'sdc', 'sitd', 'swf', 'sxc', 'sxw', 'tar', 'tgz', 'tif', 'tiff', 'txt', 'vsd', 'wav', 'wma', 'wmv', 'xls', 'xml', 'zip') ;
$Config['DeniedExtensions']['File']        = array() ;
$Config['FileTypesPath']['File']        = $Config['UserFilesPath'] . 'file/' ;
$Config['FileTypesAbsolutePath']['File']= ($Config['UserFilesAbsolutePath'] == '') ? '' : $Config['UserFilesAbsolutePath'].'file/' ;
$Config['QuickUploadPath']['File']        = $Config['UserFilesPath'] ;
$Config['QuickUploadAbsolutePath']['File']= $Config['UserFilesAbsolutePath'] ; 

$Config['AllowedExtensions']['Image']    = array('bmp','gif','jpeg','jpg','png') ;
$Config['DeniedExtensions']['Image']    = array() ;
$Config['FileTypesPath']['Image']        = $Config['UserFilesPath'] . 'image/' ;
$Config['FileTypesAbsolutePath']['Image']= ($Config['UserFilesAbsolutePath'] == '') ? '' : $Config['UserFilesAbsolutePath'].'image/' ;
$Config['QuickUploadPath']['Image']        =  $Config['FileTypesPath']['Image'];
$Config['QuickUploadAbsolutePath']['Image']= $Config['FileTypesAbsolutePath']['Image'];

$Config['AllowedExtensions']['Flash']    = array('swf','flv') ;
$Config['DeniedExtensions']['Flash']    = array() ;
$Config['FileTypesPath']['Flash']        = $Config['UserFilesPath'] . 'flash/' ;
$Config['FileTypesAbsolutePath']['Flash']= ($Config['UserFilesAbsolutePath'] == '') ? '' : $Config['UserFilesAbsolutePath'].'flash/' ;
$Config['QuickUploadPath']['Flash']        = $Config['FileTypesPath']['Flash']; 
$Config['QuickUploadAbsolutePath']['Flash']= $Config['FileTypesAbsolutePath']['Flash'];

$Config['AllowedExtensions']['Media']    = array('aiff', 'asf', 'avi', 'bmp', 'fla', 'flv', 'gif', 'jpeg', 'jpg', 'mid', 'mov', 'mp3', 'mp4', 'mpc', 'mpeg', 'mpg', 'png', 'qt', 'ram', 'rm', 'rmi', 'rmvb', 'swf', 'tif', 'tiff', 'wav', 'wma', 'wmv') ;
$Config['DeniedExtensions']['Media']    = array() ;
$Config['FileTypesPath']['Media']        = $Config['UserFilesPath'] . 'media/' ;
$Config['FileTypesAbsolutePath']['Media']= ($Config['UserFilesAbsolutePath'] == '') ? '' : $Config['UserFilesAbsolutePath'].'media/' ;
$Config['QuickUploadPath']['Media']        = $Config['FileTypesPath']['Media'];  
$Config['QuickUploadAbsolutePath']['Media']= $Config['FileTypesAbsolutePath']['Media'];