Files
competition-website/app/router.js
qubiaobiao 23604f2718 feat(exam/auth): 登录闸门 + 交卷稳定性加固(R4-R8)
R4 登录/交卷背压闸门
- app/middleware/concurrency_guard.js: 新增。超限即 429 + Retry-After(立即拒绝式,
  不排队;实测 429 P50=34ms)。RETRY_AFTER 收敛为单一有依据常量 = '2'
  (≈1.8 个满载窗口;实测 bcryptjs 1129ms / 原生 265ms 每窗口)。
  配额:LOGIN_MAX=16 / SUBMIT_MAX=24 / HEAVY_REQ_MAX=20,各 *REQ_MAX 覆盖。
- config/config.default.js: 闸门配额与连接池容量配置;DB dialect 锁 mysql。

R7 顺序红线 + R8 Retry-After 同源 + 原生 bcrypt
- 3 处硬编码 '2' 收敛为单一常量;补"勿因换实现而删闸门"红线注释。
- bcryptjs -> bcrypt@6(N-API,Windows/Linux 均免编译;drop-in,存量哈希 $2b$10$ 兼容)。
- app/model/account.js / app/service/auth.js: 同步哈希实现注释(D4 全族 5 处陈旧
  SHA256 注释修正)。

答题链路与综合大题
- app/controller/exam.js: 中职/高职综合大题接口(GET big-question / POST big-answer,
  逐问 2000 字上限校验);uploadWord 对中职/高职封堵(400)。
- app/service/exam.js: 抽题快照 question_snapshot 落库、答案归集键修正。
- app/controller/auth.js / app/service/auth.js: toClientUser() 唯一出口,
  未发布态按组剔除 score,exam_score/word_score/ppt_score 任何情况下不下发。
- app/router.js: 新增大题与管理端路由。
- app/extend/helper.js: 下载文件名 RFC5987 编码(禁双重编码)。
- app.js: 池容量断言按 env 区分单/多 worker(防 dev 假日志)。

验证:ci-gates.sh 9/9 全绿;verify_login_guard.py 28/28(含 D 组变异 9/9);
真实登录/抽题/交卷端到端 code=0;前端构建 BUILD_RC=0。
2026-09-22 09:16:55 +08:00

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'use strict';
/**
* 路由配置 - Router
*
* 通信与导航应用技术创新赛 - 线上选拔赛网站后端路由定义
*
* 路由分组说明:
* - /api/auth/* : 认证相关(登录、激活、验证码等)
* - /api/news/* : 新闻通知(公开访问)
* - /api/carousel : 轮播图(公开访问)
* - /api/materials/* : 资料下载(需认证)
* - /api/exam/* : 比赛答题(需认证)
* - /api/upload/* : 文件上传(需认证)
* - /api/admin/* : 管理后台(需管理员认证)
* - /api/score/* : 成绩查询(需认证)
*/
module.exports = app => {
const { router, controller, middleware } = app;
// 获取 JWT 认证中间件实例
const auth = middleware.auth();
// 管理员认证中间件(需要 admin 角色)
const adminAuth = middleware.auth({ adminOnly: true });
// 登录限流中间件(防暴力破解):15 分钟内同一 IP+账号最多 10 次失败
const loginRateLimit = middleware.loginRateLimit({ windowMs: 15 * 60 * 1000, maxAttempts: 10 });
// 交卷限流(2026-09-21 并发压测结论)
//
// 🔴 只挂在 submit-all 这**单条**路由上,绝不整段挂 /api/exam:
// 逐题保存 submit-answers 是「每答一题一次请求」(一场约 59 次),若整段挂
// exam:30/分钟,正常考生在答题过程中就会被自己的保存请求打爆(429),
// 直接造成丢答案 —— 这比不限流更糟。
//
// 🔴 必须排在 auth **之后**:rateLimit 的限流键优先取 ctx.state.currentUser.uid
// (见 middleware/rateLimit.js getClientId),而 currentUser 由 auth 写入。
// 若不排在 auth 之后,键会退化为 ip:<ctx.ip> —— 考场/学校普遍共用出口 IP,
// 会把整间考场的考生一起限流拒掉,属灾难级误伤。
//
// 阈值取 LIMITS.exam = 30 次/60 秒(正常交卷 1 次 + 前端自动重试数次,余量充足)。
const examSubmitLimit = middleware.rateLimit({ level: 'exam' });
// ==================== 公开接口(无需认证) ====================
// 健康检查(容器探针 / 负载均衡探活,无需认证)
router.get('/api/health', controller.health.check);
// 认证相关 - 公开接口
router.post('/api/auth/captcha', controller.auth.captcha);
router.post('/api/auth/sms', controller.auth.sms);
router.post('/api/auth/activate', controller.auth.activate);
router.post('/api/auth/login', loginRateLimit, controller.auth.login);
router.post('/api/auth/admin-login', loginRateLimit, controller.auth.adminLogin);
router.post('/api/auth/forgot-password', controller.auth.forgotPassword);
router.post('/api/auth/reset-password', controller.auth.resetPassword);
// ==================== 选手认证接口(需要 JWT,不需要 admin 角色) ====================
// 认证相关 - 受保护接口
router.get('/api/auth/current-user', auth, controller.auth.currentUser);
router.post('/api/auth/logout', auth, controller.auth.logout);
// 静默刷新令牌(不挂 auth 中间件,因为携带的 token 可能已过期)
router.post('/api/auth/refresh', controller.auth.refresh);
// ==================== 公开内容接口 ====================
// 新闻通知
router.get('/api/news', controller.news.index);
router.get('/api/news/counts', controller.news.counts);
router.get('/api/news/:id', controller.news.show);
// 轮播图
router.get('/api/carousel', controller.carousel.index);
// ==================== 资料下载(需认证) ====================
router.get('/api/materials', auth, controller.materials.index);
router.get('/api/materials/:group/:fileName/download', auth, controller.materials.download);
// ==================== 比赛答题(需认证) ====================
router.get('/api/exam/:group/status', auth, controller.exam.status);
router.get('/api/exam/:group/questions', auth, controller.exam.questions);
router.get('/api/exam/:group/answers', auth, controller.exam.getAnswers);
router.get('/api/exam/:group/word-template', controller.exam.wordTemplate);
router.post('/api/exam/:group/submit-answers', auth, controller.exam.submitAnswers);
router.post('/api/exam/:group/upload-word', auth, controller.exam.uploadWord);
router.delete('/api/exam/:group/word', auth, controller.exam.deleteWord);
// 交卷:全局闸门(config.middleware 的 concurrencyGuard 已纳入 submit-all,
// 过载返回 429 + Retry-After)→ auth → 交卷限流(按 user,见上方 examSubmitLimit)
router.post('/api/exam/:group/submit-all', auth, examSubmitLimit, controller.exam.submitAll);
// 综合大题(仅中职/高职组;2026-09-21 起替代原 Word 文件上传题)
// 首次 GET 抽题并落库题干快照,后续 GET 一律返回同一道题(幂等防纠纷)。
router.get('/api/exam/:group/big-question', auth, controller.exam.bigQuestion);
router.post('/api/exam/:group/big-answer', auth, controller.exam.saveBigAnswer);
// ==================== 文件上传(需认证) ====================
router.post('/api/upload/:group', auth, controller.upload.upload);
router.get('/api/upload/:group/status', auth, controller.upload.status);
router.get('/api/upload/:group/submissions', auth, controller.upload.submissions);
router.delete('/api/upload/:group/:id', auth, controller.upload.delete);
// 分片上传(需认证)
router.post('/api/upload/:group/chunk', auth, controller.upload.uploadChunk);
router.post('/api/upload/:group/merge', auth, controller.upload.mergeChunks);
router.get('/api/upload/:group/chunk-status', auth, controller.upload.chunkStatus);
// ==================== 管理后台(需管理员认证) ====================
// 数据统计
router.get('/api/admin/stats', adminAuth, controller.admin.stats);
// 账号管理
router.get('/api/admin/accounts', adminAuth, controller.admin.accounts);
router.post('/api/admin/import-excel', adminAuth, controller.admin.importExcel);
// 提交管理
router.get('/api/admin/submissions/:group', adminAuth, controller.admin.submissions);
router.get('/api/admin/submission-file/:group/:id', adminAuth, controller.admin.downloadSubmissionFile);
router.get('/api/admin/export-csv/:group', adminAuth, controller.admin.exportCsv);
router.get('/api/admin/batch-download/:group', adminAuth, controller.admin.batchDownload);
router.get('/api/admin/works/:group', adminAuth, controller.admin.works);
// 时间设置
router.get('/api/admin/times', adminAuth, controller.admin.getTimes);
router.put('/api/admin/times', adminAuth, controller.admin.setTimes);
// 分数管理
router.get('/api/admin/scores/:group', adminAuth, controller.admin.getScores);
router.put('/api/admin/scores/:group', adminAuth, controller.admin.setScores);
// 试题管理
router.get('/api/admin/exam/:group/questions', adminAuth, controller.admin.getQuestions);
router.put('/api/admin/exam/:group/questions', adminAuth, controller.admin.setQuestions);
router.post('/api/admin/exam/:group/questions/import-excel', adminAuth, controller.admin.importQuestionsExcel);
router.get('/api/admin/exam/:group/questions/template', adminAuth, controller.admin.downloadQuestionTemplate);
router.put('/api/admin/exam/:group/word-template', adminAuth, controller.admin.uploadWordTemplate);
router.get('/api/admin/exam/:group/word-template', adminAuth, controller.admin.getWordTemplate);
router.delete('/api/admin/exam/:group/word-template', adminAuth, controller.admin.deleteWordTemplate);
// 综合大题:题库管理(CRUD)+ 作答查证(防考生纠纷)+ 按小问评分
router.get('/api/admin/big-questions/:group', adminAuth, controller.admin.listBigQuestions);
router.post('/api/admin/big-questions/:group', adminAuth, controller.admin.createBigQuestion);
router.put('/api/admin/big-questions/:group/:id', adminAuth, controller.admin.updateBigQuestion);
router.delete('/api/admin/big-questions/:group/:id', adminAuth, controller.admin.deleteBigQuestion);
router.get('/api/admin/big-answers/:group', adminAuth, controller.admin.getBigAnswers);
router.put('/api/admin/big-answers/:group/:uid/scores', adminAuth, controller.admin.setBigAnswerScores);
// 备赛资料管理
router.get('/api/admin/materials/:group', adminAuth, controller.admin.getMaterials);
router.post('/api/admin/materials/:group', adminAuth, controller.admin.uploadMaterial);
router.delete('/api/admin/materials/:group/:fileName', adminAuth, controller.admin.deleteMaterial);
// 成绩发布
router.put('/api/admin/publish-scores', adminAuth, controller.admin.publishScores);
router.get('/api/admin/publish-scores', adminAuth, controller.admin.getPublishStatus);
// 新闻管理
router.get('/api/admin/news', adminAuth, controller.admin.listNews);
router.post('/api/admin/news', adminAuth, controller.admin.createNews);
router.put('/api/admin/news/order', adminAuth, controller.admin.updateNewsOrder);
router.put('/api/admin/news/:id', adminAuth, controller.admin.updateNews);
router.delete('/api/admin/news/:id', adminAuth, controller.admin.deleteNews);
// 轮播图管理
router.get('/api/admin/carousel', adminAuth, controller.admin.listCarousel);
router.post('/api/admin/carousel', adminAuth, controller.admin.addCarousel);
router.put('/api/admin/carousel/:id', adminAuth, controller.admin.updateCarousel);
router.delete('/api/admin/carousel/:id', adminAuth, controller.admin.deleteCarousel);
router.put('/api/admin/carousel/order', adminAuth, controller.admin.updateCarouselOrder);
// 图片上传(轮播图等)
router.post('/api/admin/upload/image', adminAuth, controller.admin.uploadImage);
router.post('/api/admin/upload/news-image', adminAuth, controller.admin.uploadNewsImage);
// 下载考生答案 Word 文件
router.get('/api/admin/submissions/:group/:id/word', adminAuth, controller.admin.downloadWord);
// 测试数据标记与重置
router.post('/api/admin/toggle-test-flag', adminAuth, controller.admin.toggleTestFlag);
router.post('/api/admin/reset-test-data', adminAuth, controller.admin.resetTestData);
// ==================== 成绩查询(需认证) ====================
router.get('/api/score', auth, controller.score.index);
};