From 1ce0f123fadf646a8c7cb6cfb605c518a308c834 Mon Sep 17 00:00:00 2001
From: freefire <aarbbs@88.com>
Date: Wed, 9 Sep 2026 02:41:39 +0800
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- server/index.mjs：生产模式 Express 服务，静态资源 immutable 缓存
- /api /uploads /media 等前缀反代到 Go API，xfwd 透传客户端 IP
- Vike renderPage 承接 SSR，渲染失败返回 500 兜底页
- /healthz 健康检查端点
---
 frontend/server/index.mjs | 114 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 frontend/server/index.mjs

diff --git a/frontend/server/index.mjs b/frontend/server/index.mjs
new file mode 100644
index 0000000..c04e600
--- /dev/null
+++ b/frontend/server/index.mjs
@@ -0,0 +1,114 @@
+/**
+ * Node 渲染服务器（生产模式）。
+ *
+ * 双进程架构对外单点：
+ * - Node :3000 —— 前端静态资源 + Vike SSR（/、/board/:id、/post/:id 真渲染，其余 SPA 壳）
+ * - Go   :3001 —— 纯 API（/api、/uploads、/media、/oauth、robots/sitemap/favicon 反代至此）
+ *
+ * dev 模式不经过本文件：`npm run dev`（vike dev :5173）+ Go dev（API :3000）。
+ */
+import { Readable } from 'node:stream';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import fs from 'node:fs';
+import express from 'express';
+import compression from 'compression';
+import { createProxyMiddleware } from 'http-proxy-middleware';
+
+// 本文件仅用于生产（dev 走 `vike dev`）；须在加载 vike/server 前定型环境
+process.env.NODE_ENV ??= 'production';
+const { renderPage } = await import('vike/server');
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const root = path.resolve(__dirname, '..');
+const distClient = path.join(root, 'dist', 'client');
+
+const port = Number(process.env.PORT || 3000);
+const goApiUrl = process.env.GO_API_URL || 'http://127.0.0.1:3001';
+
+/** 反代到 Go 的前缀（对齐旧 Go ServePublicSPA 的资源分发面） */
+const GO_PROXY_PREFIXES = [
+  '/api',
+  '/uploads',
+  '/media',
+  '/oauth',
+  '/.well-known',
+  '/robots.txt',
+  '/sitemap.xml',
+  '/favicon.ico',
+];
+
+if (!fs.existsSync(distClient)) {
+  console.error(`[j13-web] 未找到构建产物 ${distClient}，请先执行 npm run build`);
+  process.exit(1);
+}
+
+const app = express();
+app.disable('x-powered-by');
+app.use(compression());
+
+// Node 自身探活（不依赖 Go，供容器健康检查）
+app.get('/healthz', (_req, res) => {
+  res.status(200).send('ok');
+});
+
+// Go 反代：透传 method/headers/body；xfwd 附加 X-Forwarded-*，供 Go 推导站点 base URL。
+// express app.use(prefix) 会剥掉挂载前缀（req.url 不含 prefix），故 target 须补回对应前缀
+for (const prefix of GO_PROXY_PREFIXES) {
+  app.use(
+    prefix,
+    createProxyMiddleware({
+      target: `${goApiUrl}${prefix}`,
+      xfwd: true,
+    }),
+  );
+}
+
+// 前端静态资源：dist/client（含 /assets 与 /stickers），assets 带 contenthash → immutable
+app.use(
+  express.static(distClient, {
+    setHeaders(res, filePath) {
+      if (filePath.includes(`${path.sep}assets${path.sep}`)) {
+        res.setHeader('Cache-Control', 'public, max-age=31536000, immutable');
+      }
+    },
+  }),
+);
+
+// 其余路径交给 Vike：feed 页 SSR 文档，spa 页输出壳（客户端接管）
+app.use(async (req, res, next) => {
+  try {
+    const pageContext = await renderPage({
+      urlOriginal: req.originalUrl,
+      headersOriginal: req.headers,
+    });
+    const { httpResponse } = pageContext;
+    if (!httpResponse) return next();
+
+    const { statusCode, headers, body } = httpResponse;
+    res.statusCode = statusCode;
+    for (const [name, value] of headers) res.setHeader(name, value);
+    if (typeof body === 'string') {
+      res.send(body);
+    } else {
+      Readable.fromWeb(body).pipe(res);
+    }
+  } catch (err) {
+    // feedData/onRenderHtml 已内置降级（Go 不可达 → SPA 壳），此处仅兜 renderPage 本身的异常
+    console.error('[j13-web] renderPage 失败:', err);
+    if (!res.headersSent) {
+      res
+        .status(500)
+        .type('html')
+        .send(
+          '<!DOCTYPE html><html lang="zh-CN"><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>服务器错误</title><body><p>页面渲染失败，请刷新重试。</p></body></html>',
+        );
+    } else {
+      res.end();
+    }
+  }
+});
+
+app.listen(port, () => {
+  console.log(`[j13-web] Node 渲染服务器已启动: http://localhost:${port} (Go API: ${goApiUrl})`);
+});