feat: AI沙箱流式对话+引导学习+静态服务优化

- 后端: AI沙箱流式对话(SSE), reasoning_content 回退支持 - 前端: 沙箱页流式渲染, 引导学习面板, 默认场景/Starter兜底 - 优化: 前端改用静态文件服务器(node server.js)替代next dev, CSS永不丢失 - 修复: 通用模型默认改为可用模型, predev不再删.next缓存
2026-05-27 18:26:30 +08:00
parent 0b66d752ce
commit 417fb266d4
14 changed files with 947 additions and 203 deletions
@@ -0,0 +1,92 @@
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const PORT = process.env.PORT || 3000;
+const ROOT = path.join(__dirname, 'out');
+
+const MIME = {
+  '.html': 'text/html; charset=utf-8',
+  '.css': 'text/css; charset=utf-8',
+  '.js': 'application/javascript; charset=utf-8',
+  '.json': 'application/json; charset=utf-8',
+  '.png': 'image/png',
+  '.jpg': 'image/jpeg',
+  '.jpeg': 'image/jpeg',
+  '.gif': 'image/gif',
+  '.svg': 'image/svg+xml',
+  '.ico': 'image/x-icon',
+  '.webp': 'image/webp',
+  '.woff': 'font/woff',
+  '.woff2': 'font/woff2',
+  '.ttf': 'font/ttf',
+  '.txt': 'text/plain; charset=utf-8',
+  '.xml': 'application/xml; charset=utf-8',
+  '.webmanifest': 'application/manifest+json',
+  '.map': 'application/octet-stream',
+};
+
+function resolvePath(url) {
+  const decoded = decodeURIComponent(url).split('?')[0];
+  if (decoded === '/') return path.join(ROOT, 'index.html');
+
+  const ext = path.extname(decoded);
+  if (ext) return path.join(ROOT, decoded);
+
+  const asHtml = path.join(ROOT, decoded + '.html');
+  if (fs.existsSync(asHtml)) return asHtml;
+
+  const asIndex = path.join(ROOT, decoded, 'index.html');
+  if (fs.existsSync(asIndex)) return asIndex;
+
+  return path.join(ROOT, decoded + '.html');
+}
+
+function sendFile(res, filePath, statusCode) {
+  const ext = path.extname(filePath);
+  const ct = MIME[ext] || 'application/octet-stream';
+  const isHtml = ext === '.html';
+
+  fs.readFile(filePath, (err, data) => {
+    if (err) {
+      res.writeHead(500);
+      res.end('Internal Server Error');
+      return;
+    }
+    res.writeHead(statusCode, {
+      'Content-Type': ct,
+      'Cache-Control': isHtml ? 'no-cache' : 'public, max-age=31536000, immutable',
+    });
+    res.end(data);
+  });
+}
+
+function serve(req, res) {
+  const filePath = path.normalize(resolvePath(req.url));
+
+  if (!filePath.startsWith(ROOT)) {
+    res.writeHead(403);
+    res.end('Forbidden');
+    return;
+  }
+
+  fs.access(filePath, fs.constants.F_OK, (err) => {
+    if (err) {
+      const four04 = path.join(ROOT, '404.html');
+      fs.access(four04, fs.constants.F_OK, (err2) => {
+        if (err2) {
+          sendFile(res, path.join(ROOT, 'index.html'), 200);
+        } else {
+          sendFile(res, four04, 404);
+        }
+      });
+      return;
+    }
+    sendFile(res, filePath, 200);
+  });
+}
+
+const server = http.createServer(serve);
+server.listen(PORT, () => {
+  console.log(`Static server running at http://localhost:${PORT} (serving ${ROOT})`);
+});