${contentHtml}

`; } function renderSSR(content, useMarkdown) { // Extract custom tags before markdown, restore after const images = []; const files = []; let html = String(content).replace(/\[image:([^\]]+)\]/g, (m, f) => { images.push(f); return '\x00IMG' + (images.length - 1) + '\x00'; }); html = html.replace(/\[file:([^\]]+)\]/g, (m, f) => { files.push(f); return '\x00FILE' + (files.length - 1) + '\x00'; }); if (useMarkdown) { html = marked.parse(html, { breaks: true, gfm: true }); html = DOMPurify.sanitize(html); } else { html = html.replace(//g, '>'); html = html.replace(/\n/g, '
'); } html = html.replace(/\x00IMG(\d+)\x00/g, (m, i) => { const fn = images[parseInt(i)]; return fn ? `

` : ''; }); html = html.replace(/\x00FILE(\d+)\x00/g, (m, i) => { const fn = files[parseInt(i)]; return fn ? `📎 ${fn}` : ''; }); return html; } // [lock:] 锁定占位（SSR 无用户视角：login/reply/password 块全部剥离，未解锁内容不进 HTML） function lockPlaceholderDiv(type) { const text = type === 'reply' ? '评论后查看' : (type === 'password' ? '密码解锁' : '登录后查看'); return `

🔒 ${text}

`; } // 作者显示名：昵称优先，空则 username（fallback 为匿名/管理员兜底） function authorDisplay(row, fallback) { const nick = String(row && row.nickname || '').trim(); return nick || (row && row.author_name) || fallback || ''; } // stripLocks → renderSSR → 占位符替换（渲染后替换保证 div 不被转义/净化） function renderLocksAware(content, useMarkdown) { const { stripped } = locks.stripLocks(content, { maskPasswords: true, viewer: {} }); const typeByIndex = {}; locks.parseLocks(content).blocks.forEach(b => { typeByIndex[b.index] = b.type; }); const html = renderSSR(stripped, useMarkdown); return html.replace(/@@LOCK(\d+)@@/g, (m, i) => lockPlaceholderDiv(typeByIndex[parseInt(i)] || 'login')); } function blogSSR(req, res) { const post = db.get('SELECT bp.*, u.username as author_name, u.nickname FROM blog_posts bp LEFT JOIN users u ON bp.author_id = u.id WHERE bp.id = ?', [req.params.id]); if (!post || !post.published) return res.status(404).send('文章不存在'); // 阅读量 +1（SEO 页访问也计入） db.run('UPDATE blog_posts SET views = views + 1 WHERE id = ?', [post.id]); // [lock:] 真锁：SSR 无用户 → 全剥离；摘要/首图用剥离后文本（防锁定内容进 meta/OG） const locked = locks.stripLocks(post.content, { maskPasswords: true, viewer: {} }); const visibleContent = locked.stripped; const body = renderLocksAware(post.content, post.use_markdown); // 摘要用剥离后文本且剔除 @@LOCK 占位符（防锁定占位进 meta description/OG） const excerpt = post.excerpt || visibleContent.slice(0, 150).replace(/@@LOCK\d+@@/g, ''); const siteName = db.getSetting('site_name') || 'RainWeb'; const siteUrl = db.getSetting('site_url') || (req.protocol + '://' + req.get('host')); const baseDomain = siteUrl.replace(/\/$/, ''); const baseUrl = baseDomain + '/blog/' + post.id; // 首图：正文 [image:...] 标签优先（锁定块内图片不入选），无则默认 OG 图（Article.image 必填） const firstImage = (visibleContent.match(/\[image:([^\]]+)\]/) || [])[1]; const ogImage = firstImage ? baseDomain + '/uploads/' + encodeURIComponent(firstImage) : baseDomain + '/og-default.png'; // 面包屑 schema（与页面可见面包屑「首页 / 标题」对应） const breadcrumbJsonld = JSON.stringify({ '@context': 'https://schema.org', '@type': 'BreadcrumbList', itemListElement: [ { '@type': 'ListItem', position: 1, name: '首页', item: baseDomain + '/' }, { '@type': 'ListItem', position: 2, name: post.title, item: baseUrl } ] }).replace(/${breadcrumbJsonld} `; // 分享入口：指向 /blog/:id/share → 302 到 SPA 列表页 → 前端客户端导航到完整版详情 const shareLink = `

open_in_new 在完整版中打开

`; const html = ssrPage(post.title, ` ${shareLink}

${escapeHtml(post.title)}

${escapeHtml(authorDisplay(post, '管理员'))} · ${escapeHtml(post.created_at)}

${body}

`, excerpt, { url: baseUrl, ogType: 'article', ogImage, ogTitle: post.title, twitterCard: 'summary_large_image', jsonld: jsonldHtml, breadcrumb: '', rssUrl: baseDomain + '/feed.xml' }); res.send(html); } function forumSSR(req, res) { // 论坛游客可见开关：私密模式（forum_guest_visible!=='1'）下 SSR 详情返回 404， // 页面不对外索引（SEO 权衡：私密论坛内容不应进搜索引擎）。 if (db.getSetting('forum_guest_visible') !== '1') { res.status(404); return res.send('论坛不可见

论坛已设为私密，请登录后访问。

'); } const post = db.get( `SELECT fp.*, u.username as author_name, u.nickname, fc.name as category_name FROM forum_posts fp LEFT JOIN users u ON fp.author_id = u.id LEFT JOIN forum_categories fc ON fp.category_id = fc.id WHERE fp.id = ?`, [req.params.id]); if (!post) return res.status(404).send('帖子不存在'); const replies = db.all( `SELECT fr.*, u.username as author_name, u.nickname FROM forum_replies fr LEFT JOIN users u ON fr.author_id = u.id WHERE fr.post_id = ? ORDER BY fr.created_at ASC`, [req.params.id]); const body = renderLocksAware(post.content, post.use_markdown); const siteName = db.getSetting('site_name') || 'RainWeb'; const siteUrl = db.getSetting('site_url') || (req.protocol + '://' + req.get('host')); const baseDomain = siteUrl.replace(/\/$/, ''); const baseUrl = baseDomain + '/forum/' + post.id; const ogImage = baseDomain + '/og-default.png'; // 面包屑 schema（与页面可见面包屑「首页 / 论坛 / 标题」对应） const breadcrumbJsonld = JSON.stringify({ '@context': 'https://schema.org', '@type': 'BreadcrumbList', itemListElement: [ { '@type': 'ListItem', position: 1, name: '首页', item: baseDomain + '/' }, { '@type': 'ListItem', position: 2, name: '论坛', item: baseDomain + '/forum.html' }, { '@type': 'ListItem', position: 3, name: post.title, item: baseUrl } ] }).replace(/${breadcrumbJsonld} `; const repliesHtml = replies.map(r => `

${escapeHtml(authorDisplay(r, '匿名'))} · ${escapeHtml(r.created_at)}

${escapeHtml(r.content)}

` ).join(''); // 分享入口：指向 /forum/:id/share → 302 到 SPA 列表页 → 前端客户端导航到完整版详情 const shareLink = `

open_in_new 在完整版中打开

`; const html = ssrPage(post.title, ` ${shareLink}

${escapeHtml(post.category_name || '论坛')}

${escapeHtml(post.title)}

${escapeHtml(authorDisplay(post, '匿名'))} · ${escapeHtml(post.created_at)}

${body}

回复 (${replies.length})

${repliesHtml || '

暂无回复

'}`, post.title, { url: baseUrl, ogType: 'article', ogImage, ogTitle: post.title, twitterCard: 'summary_large_image', jsonld: jsonldHtml, breadcrumb: '', rssUrl: baseDomain + '/feed/forum.xml' }); res.send(html); } // 论坛版块页 SSR（P5）：/forum/c/:id——版块名/描述/公告 + 首屏帖子 + 面包屑 JSON-LD。 // 私密模式（forum_guest_visible!=='1'）返回 404 + noindex（不对外索引）。 function categorySSR(req, res) { const privateNotice = () => { res.status(404); return res.send('版块不可见

论坛已设为私密，请登录后访问。

'); }; if (db.getSetting('forum_guest_visible') !== '1') return privateNotice(); const cat = db.get('SELECT * FROM forum_categories WHERE id = ?', [req.params.id]); if (!cat) return res.status(404).send('版块不存在'); const posts = db.all( `SELECT fp.*, u.username as author_name, u.nickname, (SELECT COUNT(*) FROM forum_replies WHERE post_id = fp.id) as reply_count FROM forum_posts fp LEFT JOIN users u ON fp.author_id = u.id WHERE fp.category_id = ? ORDER BY fp.is_pinned DESC, fp.created_at DESC LIMIT 20`, [cat.id]); const moderators = db.all( 'SELECT u.username FROM forum_moderators fm LEFT JOIN users u ON fm.user_id = u.id WHERE fm.category_id = ?', [cat.id]); const siteName = db.getSetting('site_name') || 'RainWeb'; const siteUrl = db.getSetting('site_url') || (req.protocol + '://' + req.get('host')); const baseDomain = siteUrl.replace(/\/$/, ''); const baseUrl = baseDomain + '/forum/c/' + cat.id; const ogImage = baseDomain + '/og-default.png'; // 面包屑 schema（首页 / 论坛 / 版块）+ 版块 CollectionPage/ItemList const breadcrumbJsonld = JSON.stringify({ '@context': 'https://schema.org', '@type': 'BreadcrumbList', itemListElement: [ { '@type': 'ListItem', position: 1, name: '首页', item: baseDomain + '/' }, { '@type': 'ListItem', position: 2, name: '论坛', item: baseDomain + '/forum.html' }, { '@type': 'ListItem', position: 3, name: cat.name, item: baseUrl } ] }).replace(/ ({ '@type': 'ListItem', position: i + 1, url: baseDomain + '/forum/' + p.id, name: p.title })) } }).replace(/${breadcrumbJsonld} `; const moderatorsHtml = moderators.length ? `版主：${moderators.map(m => escapeHtml(m.username)).join('、')}` : ''; const announcementHtml = cat.announcement ? `

公告：${escapeHtml(cat.announcement)}

` : ''; const postsHtml = posts.map(p => { const badge = p.is_pinned ? '置顶' : (p.is_essence ? '精华' : ''); return `

${badge}${escapeHtml(p.title)}

${escapeHtml(authorDisplay(p, '匿名'))} · ${escapeHtml(p.created_at)} · ${p.reply_count} 回复

`; }).join(''); // 分享入口：指向 /forum/c/:id/share → 302 到 SPA 列表页 → 前端客户端导航到版块页 const shareLink = `

open_in_new 在完整版中打开

`; const html = ssrPage(cat.name, ` ${shareLink}

${escapeHtml(cat.name)}

${moderatorsHtml} ${cat.description ? `

${escapeHtml(cat.description)}

` : ''} ${announcementHtml}

帖子 (${posts.length})

${postsHtml || '

暂无帖子

'}`, cat.description || cat.name, { url: baseUrl, ogType: 'website', ogImage, ogTitle: cat.name, jsonld: jsonldHtml, breadcrumb: '', rssUrl: baseDomain + '/feed/forum/c/' + cat.id + '.xml' }); res.send(html); } // lastmod 规范化：'YYYY-MM-DD HH:MM:SS'（UTC）→ 'YYYY-MM-DD'（ISO 8601 日期，sitemap 协议要求） function toSitemapDate(ts) { const s = String(ts || ''); return s.slice(0, 10); } function sitemapXml(req, res) { const siteUrl = db.getSetting('site_url') || (req.protocol + '://' + req.get('host')); const baseUrl = siteUrl.replace(/\/$/, ''); // lastmod：updated_at 优先，无则 created_at（均格式化为 YYYY-MM-DD） const blogPosts = db.all('SELECT id, created_at, updated_at, title FROM blog_posts WHERE published = 1 ORDER BY created_at DESC'); // 论坛私密模式下不从 sitemap 输出论坛帖子/版块 URL（避免收录后 404） const forumVisible = db.getSetting('forum_guest_visible') === '1'; const forumPosts = forumVisible ? db.all('SELECT id, created_at, updated_at FROM forum_posts ORDER BY created_at DESC') : []; // forum_categories 无 created_at 列；版块 URL 无 lastmod（最近有帖子时帖子的 lastmod 已足够） const forumCats = forumVisible ? db.all('SELECT id FROM forum_categories ORDER BY sort_order ASC') : []; // 核心页：首页 + 博客列表 + 论坛列表 + 归档（无分页 URL）；Google 忽略，不再输出 let urls = `${baseUrl}/ ${baseUrl}/blog.html ${baseUrl}/forum.html ${baseUrl}/archive.html`; forumCats.forEach(c => { urls += `${baseUrl}/forum/c/${c.id}`; }); blogPosts.forEach(p => { urls += `${baseUrl}/blog/${p.id}${toSitemapDate(p.updated_at || p.created_at)}`; }); forumPosts.forEach(p => { urls += `${baseUrl}/forum/${p.id}${toSitemapDate(p.updated_at || p.created_at)}`; }); res.header('Content-Type', 'application/xml'); res.send(` ${urls}`); } module.exports = { blogSSR, forumSSR, categorySSR, sitemapXml };