Method sanitizeFooterHtml

src/FileRise/Domain/AdminModel.php:794–838

($value)

    }

    private static function sanitizeFooterHtml($value): string
    {
        $html = trim((string)$value);
        if ($html === '') {
            return '';
        }

        $html = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/', ' ', $html);
        $html = substr((string)$html, 0, 2000);

        if (!class_exists(\DOMDocument::class)) {
            $text = strip_tags($html);
            $text = preg_replace('/\s+/', ' ', (string)$text);
            return trim($text);
        }

        $previous = libxml_use_internal_errors(true);
        $doc = new \DOMDocument('1.0', 'UTF-8');
        $loaded = $doc->loadHTML(
            '<?xml encoding="UTF-8"><div>' . $html . '</div>',
            LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD
        );
        libxml_clear_errors();
        libxml_use_internal_errors($previous);

        if (!$loaded) {
            $text = strip_tags($html);
            $text = preg_replace('/\s+/', ' ', (string)$text);
            return trim($text);
        }

        $wrapper = $doc->getElementsByTagName('div')->item(0);
        if (!$wrapper) {
            return '';
        }

        self::sanitizeFooterNode($wrapper, $doc);

        $out = '';
        foreach (iterator_to_array($wrapper->childNodes) as $child) {
            $out .= $doc->saveHTML($child);
        }

        return trim($out);
    }

    private static function sanitizeFooterNode(\DOMNode $node, \DOMDocument $doc): void
    {