hexo-theme-stellar/layout/_partial/sidebar/index.ejs

<%
// 默认组件
if (page.sidebar == undefined) {
  if (page.layout == 'post' && page.content) {
    page.sidebar = theme.sidebar.widgets.post;
  } else if (page.layout == 'wiki' && page.content && page.wiki) {
    let proj = theme.wiki.projects[page.wiki];
    if (proj.sidebar) {
      page.sidebar = proj.sidebar;
    } else {
      page.sidebar = theme.sidebar.widgets.wiki;
    }
  } else if (is_home() || ['categories', 'tags', 'archives', 'index', '404', undefined].includes(page.layout)) {
    page.sidebar = theme.sidebar.widgets.index;
  } else if (page.layout == 'page') {
    page.sidebar = theme.sidebar.widgets.page;
  } else {
    page.sidebar = [];
  }
}

// parse array string
if (typeof page.sidebar == 'string') {
  page.sidebar = page.sidebar.replace(/ /g, '').split(',');
}

function layoutWidgets() {
  var el = '';
  el += '<div class="widgets">';
  if (page.sidebar) {
    page.sidebar.forEach((w, i) => {
      if (w in theme.data.widgets) {
        let widget = theme.data.widgets[w];
        if (widget && widget.layout) {
          el += partial('widgets/' + widget.layout, {item: widget});
        }
      }
    });
  }
  el += '</div>';
  return el;
}
function layoutFooterDiv() {
  if (page.layout !== 'wiki' && theme.footer.social) {
    var el = '<footer class="footer dis-select">';
    el += '<div class="social-wrap">';
    for (let id of Object.keys(theme.footer.social)) {
      let item = theme.footer.social[id];
      if (item.icon && (item.url || item.onclick)) {
        el += '<a class="social"';
        if (item.title) {
          el += ' title="' + item.title + '"';
        }
        if (item.url) {
          el += ' href="' + url_for(item.url) + '"';
          if (item.url.includes('://')) {
            el += ' target="_blank" rel="external nofollow noopener noreferrer"';
          } else {
            el += ' rel="noopener noreferrer"';
          }
        } else if (item.onclick) {
          item.onclick = item.onclick.replace(/"|\'/g, '&quot;');
          el += ' onclick="' + item.onclick + '"';
        }
        el += '>';
        el += item.icon;
        el += '</a>';
      }
    }
    el += '</div>';
    el += '</footer>';
    return el;
  } else {
    return '';
  }
}
%>
<% if (page.header == undefined || page.header == 'left' || page.header == 'auto') { %>
  <%- partial('header', {where: 'sidebar'}) %>
<% } %>
<%- layoutWidgets() %>
<%- layoutFooterDiv() %>