[Eric]

Given the location of that hook, shouldn't you be able to use $signature ?

From profile.php:

PHP Code:

    // DO WYSIWYG processing to get to BB code.
    if ($vbulletin->GPC['wysiwyg'])
    {
        require_once(DIR . '/includes/functions_wysiwyg.php');

        $signature = convert_wysiwyg_html_to_bbcode($vbulletin->GPC['message'], $permissions['signaturepermissions'] & $vbulletin->bf_ugp_signaturepermissions['allowhtml']);
    }
    else
    {
        $signature = $vbulletin->GPC['message'];
    }

    ($hook = vBulletinHook::fetch_hook('profile_updatesignature_start')) ? eval($hook) : false;

    // handle image uploads 


So, couldn't you use something like this:

PHP Code:

    $excludedugs = explode(',', $vbulletin->options['usml_siglink_exug']);

    if (!is_member_of($vbulletin->userinfo, $excludedugs))
    {
        if ($vbulletin->options['usml_siglink_enable'] AND $vbulletin->userinfo['posts'] < $vbulletin->options['usml_siglink_minposts'])
        {
            if (stristr($signature, 'http://') OR stristr($signature, 'www.') OR stristr($signature, '[URL'))
            {
                $errors[] = fetch_error('usml_siglink_msg', $vbulletin->userinfo['username'], $vbulletin->options['usml_siglink_minposts'], $vbulletin->userinfo['posts']);
            }
        }
    }