<!DOCTYPE html>
<html lang="zh-CN" xmlns:th="http://www.thymeleaf.org">
<th:block th:fragment="open-graph(_title,_permalink,_cover,_excerpt,_type)">
    <!-- Open Graph Start -->
    <meta property="og:site_name" th:content="${site.title}" />
    <meta property="og:type" th:content="${_type}" />
    <meta property="og:title" th:content="${_title}" />
    <meta property="og:url" th:content="|${site.url}${_permalink}|" />
    <th:block
            th:with="description = ${ not #strings.isEmpty(_excerpt) ? _excerpt : not #strings.isEmpty(site.seo.description) ? site.seo.description: _title},
                     image=${not #strings.isEmpty(_cover) ? _cover : not #strings.isEmpty(site.logo) ? site.logo :'null'}">
        <meta property="og:description" th:content="${description}" />
        <meta property="og:image" th:content="${image}" />
    </th:block>
    <meta name="twitter:card" content="summary_large_image" />
    <meta name="twitter:title" th:content="${_title}" />
    <meta name="twitter:url" th:content="|${site.url}${_permalink}|" />
    <th:block th:with="description = ${ not #strings.isEmpty(_excerpt) ? _excerpt : not #strings.isEmpty(site.seo.description) ? site.seo.description: _title},
    image=${not #strings.isEmpty(_cover) ? _cover : not #strings.isEmpty(site.logo) ? site.logo :'null'}">
        <meta name="twitter:description" th:content="${description}" />
        <meta name="twitter:image" th:content="${image}" />
    </th:block>

    <!-- Open Graph End -->
</th:block>

</html>
