function _filter_html

Implements callback_filter_process().

Provides filtering of input into accepted HTML.

Related topics

File

modules/filter/filter.module, line 1305

Code

function _filter_html($text, $filter) {
    $allowed_tags = preg_split('/\\s+|<|>/', $filter->settings['allowed_html'], -1, PREG_SPLIT_NO_EMPTY);
    $text = filter_xss($text, $allowed_tags);
    if ($filter->settings['filter_html_nofollow']) {
        $html_dom = filter_dom_load($text);
        $links = $html_dom->getElementsByTagName('a');
        foreach ($links as $link) {
            $link->setAttribute('rel', 'nofollow');
        }
        $text = filter_dom_serialize($html_dom);
    }
    return trim($text);
}