PhpLinkDirectory bogus categories fix, protect your directories from de indexing

Hi

problems with bad categories url's , 404 not returned on inexistent categories, duplicate pages indexed, seo url's for categories not working properly

if you run phpld 2.x free version, google started to index bogus categories like yourdirectory/jkashjhsajda/ashajs/validacategory, displaying results from your /validcategory

Thats why 1 submitted link can generate thousands of backlinks from bogus categories like

/Sport/Industrialgoods
etc

anycombination of category1/category2/.../categoryn is displayed with duplicate results, even if those path should be 404, non existing categories.

on any version 2 directory (all version 2 directories have this problem, checked many other people directories)

directoryurl/business
directoryurl/insertanygibberish/othergibberish/whatever/.../business - is identical with directoryurl/business

this create duplicate pages in google leading, in the end, to deindexing (sooner or later, after March 15 update)

Fix:

index.php, between lines 107 and 120, mine looks like this

    $tpl->assign('qu', rawurlencode (trim ($_REQUEST['q'])));
}
else
{
        $mypath = request_uri();// adapted from get_category() function
        $mypath = substr($mypath, strlen(DOC_ROOT)+1);
        $id = get_category();
        if (strpos($mypath, '.php') == 0 && $id == 0 && strlen($mypath)!==0 ){
            header("Status: 404 Not Found", true, 404);
            die('Category does not exist.');
        }
    if (!$tpl->is_cached('main.tpl', $id))
   {
        $path = get_path($id);

Code (markup):

practically

else
{
        $id = get_category();
        }

Code (markup):

becomes

else
{
        $mypath = request_uri();// adapted from get_category() function
        $mypath = substr($mypath, strlen(DOC_ROOT)+1);
        $id = get_category();
        if (strpos($mypath, '.php') == 0 && $id == 0 && strlen($mypath)!==0 ){
            header("Status: 404 Not Found", true, 404);
            die('Category does not exist.');
        }

Code (markup):

It's not the most elegant solution but from what i have tested it works ok, returning 404 on those 1000's of duplicate bogus categories url's

If you encounter problems post here, im not a php programmer so some things can work wrong.