gnu-social/templates/attachments/view.html.twig

{% set thumbnail_parameters = {'id': attachment.getId(), 'w': config('thumbnail','width'), 'h': config('thumbnail','height')} %}
{% if attachment.getIsLocal() %}
    {% set handled = false %}
    {% for block in handle_event('ViewAttachment' ~ attachment.getMimetypeMajor() | capitalize , {'attachment': attachment, 'thumbnail_parameters': thumbnail_parameters}) %}
        {% set handled = true %}
        {{ block | raw }}
    {% endfor %}
    {% if not handled %}
        <div>
            <i> <a href="{{ path('attachment_show', {'id': attachment.getId()}) }}">{{ attachment.getTitle() }}</a> </i>
        </div>
    {% endif %}
{% else %}
    {% for block in handle_event('ViewRemoteAttachment', {'attachment': attachment, 'thumbnail_parameters': thumbnail_parameters}) %}
        {{ block | raw }}
    {% endfor %}
{% endif %}