function system_update_8009

Add allowed attributes to existing html filters.

File

core/modules/system/system.install, line 2005

Code

function system_update_8009() {
    $default_mapping = [
        '<a>' => '<a href hreflang>',
        '<blockquote>' => '<blockquote cite>',
        '<ol>' => '<ol start type>',
        '<ul>' => '<ul type>',
        '<img>' => '<img src alt height width>',
        '<h2>' => '<h2 id>',
        '<h3>' => '<h3 id>',
        '<h4>' => '<h4 id>',
        '<h5>' => '<h5 id>',
        '<h6>' => '<h6 id>',
    ];
    $config_factory = \Drupal::configFactory();
    foreach ($config_factory->listAll('filter.format') as $name) {
        $allowed_html_mapping = $default_mapping;
        $config = $config_factory->getEditable($name);
        // The image alignment filter needs the data-align attribute.
        $align_enabled = $config->get('filters.filter_align.status');
        if ($align_enabled) {
            $allowed_html_mapping['<img>'] = str_replace('>', ' data-align>', $allowed_html_mapping['<img>']);
        }
        // The image caption filter needs the data-caption attribute.
        $caption_enabled = $config->get('filters.filter_caption.status');
        if ($caption_enabled) {
            $allowed_html_mapping['<img>'] = str_replace('>', ' data-caption>', $allowed_html_mapping['<img>']);
        }
        $allowed_html = $config->get('filters.filter_html.settings.allowed_html');
        if (!empty($allowed_html)) {
            $allowed_html = strtr($allowed_html, $allowed_html_mapping);
            $config->set('filters.filter_html.settings.allowed_html', $allowed_html);
            $config->save();
        }
    }
}