修复/api/server-config暴露externalServerAuth的安全问题

src/app/api/watch-room-auth/route.ts

@@ -0,0 +1,30 @@
+/* eslint-disable no-console */
+
+import { NextRequest, NextResponse } from 'next/server';
+
+import { getAuthInfoFromCookie } from '@/lib/auth';
+
+export const runtime = 'nodejs';
+
+/**
+ * GET /api/watch-room-auth
+ *
+ * 需要登录才能访问的接口，返回观影室外部服务器的认证信息
+ * 这样可以避免将敏感的 externalServerAuth 暴露给未登录用户
+ */
+export async function GET(request: NextRequest) {
+  console.log('watch-room-auth called: ', request.url);
+
+  // 从 cookie 获取用户信息
+  const authInfo = getAuthInfoFromCookie(request);
+  if (!authInfo || !authInfo.username) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+
+  // 返回外部服务器认证信息
+  const externalServerAuth = process.env.WATCH_ROOM_EXTERNAL_SERVER_AUTH;
+
+  return NextResponse.json({
+    externalServerAuth: externalServerAuth || null,
+  });
+}