freefire
1ce0f123fa
- 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
115 lines
3.7 KiB
JavaScript
115 lines
3.7 KiB
JavaScript
/**
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* Node 渲染服务器（生产模式）。
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*
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* 双进程架构对外单点：
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* - Node :3000 —— 前端静态资源 + Vike SSR（/、/board/:id、/post/:id 真渲染，其余 SPA 壳）
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* - Go :3001 —— 纯 API（/api、/uploads、/media、/oauth、robots/sitemap/favicon 反代至此）
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*
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* dev 模式不经过本文件：`npm run dev`（vike dev :5173）+ Go dev（API :3000）。
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*/
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import { Readable } from 'node:stream';
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import path from 'node:path';
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import { fileURLToPath } from 'node:url';
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import fs from 'node:fs';
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import express from 'express';
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import compression from 'compression';
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import { createProxyMiddleware } from 'http-proxy-middleware';
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// 本文件仅用于生产（dev 走 `vike dev`）；须在加载 vike/server 前定型环境
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process.env.NODE_ENV ??= 'production';
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const { renderPage } = await import('vike/server');
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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const root = path.resolve(__dirname, '..');
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const distClient = path.join(root, 'dist', 'client');
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const port = Number(process.env.PORT || 3000);
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const goApiUrl = process.env.GO_API_URL || 'http://127.0.0.1:3001';
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/** 反代到 Go 的前缀（对齐旧 Go ServePublicSPA 的资源分发面） */
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const GO_PROXY_PREFIXES = [
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'/api',
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'/uploads',
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'/media',
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'/oauth',
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'/.well-known',
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'/robots.txt',
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'/sitemap.xml',
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'/favicon.ico',
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];
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if (!fs.existsSync(distClient)) {
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console.error(`[j13-web] 未找到构建产物 ${distClient}，请先执行 npm run build`);
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process.exit(1);
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}
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const app = express();
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app.disable('x-powered-by');
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app.use(compression());
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// Node 自身探活（不依赖 Go，供容器健康检查）
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app.get('/healthz', (_req, res) => {
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res.status(200).send('ok');
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});
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// Go 反代：透传 method/headers/body；xfwd 附加 X-Forwarded-*，供 Go 推导站点 base URL。
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// express app.use(prefix) 会剥掉挂载前缀（req.url 不含 prefix），故 target 须补回对应前缀
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for (const prefix of GO_PROXY_PREFIXES) {
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app.use(
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prefix,
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createProxyMiddleware({
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target: `${goApiUrl}${prefix}`,
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xfwd: true,
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}),
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);
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}
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// 前端静态资源：dist/client（含 /assets 与 /stickers），assets 带 contenthash → immutable
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app.use(
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express.static(distClient, {
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setHeaders(res, filePath) {
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if (filePath.includes(`${path.sep}assets${path.sep}`)) {
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res.setHeader('Cache-Control', 'public, max-age=31536000, immutable');
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}
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},
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}),
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);
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// 其余路径交给 Vike：feed 页 SSR 文档，spa 页输出壳（客户端接管）
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app.use(async (req, res, next) => {
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try {
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const pageContext = await renderPage({
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urlOriginal: req.originalUrl,
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headersOriginal: req.headers,
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});
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const { httpResponse } = pageContext;
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if (!httpResponse) return next();
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const { statusCode, headers, body } = httpResponse;
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res.statusCode = statusCode;
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for (const [name, value] of headers) res.setHeader(name, value);
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if (typeof body === 'string') {
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res.send(body);
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} else {
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Readable.fromWeb(body).pipe(res);
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}
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} catch (err) {
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// feedData/onRenderHtml 已内置降级（Go 不可达 → SPA 壳），此处仅兜 renderPage 本身的异常
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console.error('[j13-web] renderPage 失败:', err);
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if (!res.headersSent) {
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res
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.status(500)
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.type('html')
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.send(
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'<!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>',
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);
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} else {
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res.end();
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}
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}
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});
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app.listen(port, () => {
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console.log(`[j13-web] Node 渲染服务器已启动: http://localhost:${port} (Go API: ${goApiUrl})`);
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});
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