139 lines
5.0 KiB
JavaScript
139 lines
5.0 KiB
JavaScript
const express = require('express');
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const cors = require('cors');
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const session = require('express-session');
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const MySQLStore = require('express-mysql-session')(session);
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const path = require('path');
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require('dotenv').config();
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// Config & Utils
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const db = require('./config/database');
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const errorHandler = require('./middleware/errorHandler');
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const { requireAuth, requireRole } = require('./middleware/auth');
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// Routes
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const authRoutes = require('./routes/auth');
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const studentRoutes = require('./routes/student');
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const teacherRoutes = require('./routes/teacher');
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const adminRoutes = require('./routes/admin');
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const app = express();
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const PORT = process.env.PORT || 3000;
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// Middleware
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app.use(cors({
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origin: 'http://localhost:3000',
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credentials: true
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}));
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app.use(express.json());
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app.use(express.urlencoded({ extended: true }));
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// Session
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const sessionStore = new MySQLStore({
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expiration: 86400000,
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createDatabaseTable: true,
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schema: {
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tableName: 'sessions',
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columnNames: {
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session_id: 'session_id',
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expires: 'expires',
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data: 'data'
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}
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}
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}, db.pool);
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app.use(session({
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key: 'session_cookie',
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secret: process.env.SESSION_SECRET || 'your-secret-key',
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store: sessionStore,
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resave: false,
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saveUninitialized: false,
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cookie: {
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maxAge: 86400000,
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httpOnly: true,
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secure: process.env.NODE_ENV === 'production'
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}
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}));
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// Static Files
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app.use('/public', express.static(path.join(__dirname, '../frontend/public')));
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// View Routes (HTML Serving)
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// 为了简单起见，这里仍然直接 serve HTML，未来可以考虑使用模板引擎或分离前端部署
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const requirePageAuth = (req, res, next) => {
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if (!req.session.user) return res.redirect('/login');
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next();
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};
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const requirePageRole = (allowedRoles) => {
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return (req, res, next) => {
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if (!req.session.user) return res.redirect('/login');
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if (!allowedRoles.includes(req.session.user.role)) {
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return res.status(403).send('<h1>403 Forbidden - 权限不足</h1><a href="/dashboard">返回首页</a>');
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}
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next();
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};
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};
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// --- Page Routes ---
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app.get('/', (req, res) => res.redirect('/login'));
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app.get('/login', (req, res) => {
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if (req.session.user) return res.redirect('/dashboard');
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res.sendFile(path.join(__dirname, '../frontend/views/auth/login.html'));
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});
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app.get('/register', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/auth/register.html')));
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app.get('/dashboard', requirePageAuth, (req, res) => {
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const role = req.session.user?.role;
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switch (role) {
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case 'student': res.redirect('/student/dashboard'); break;
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case 'teacher': res.redirect('/teacher/dashboard'); break;
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case 'admin': res.redirect('/admin/dashboard'); break;
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default: res.redirect('/login');
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}
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});
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// Student Pages
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app.get('/student/dashboard', requirePageAuth, requirePageRole(['student']), (req, res) => {
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res.sendFile(path.join(__dirname, '../frontend/views/student/dashboard.html'));
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});
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app.get('/student/my-courses', requirePageAuth, requirePageRole(['student']), (req, res) => {
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res.sendFile(path.join(__dirname, '../frontend/views/student/my_courses.html'));
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});
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app.get('/student/profile', requirePageAuth, requirePageRole(['student']), (req, res) => {
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res.sendFile(path.join(__dirname, '../frontend/views/student/profile.html'));
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});
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// Teacher Pages
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const teacherPageRouter = express.Router();
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teacherPageRouter.use(requirePageAuth, requirePageRole(['teacher']));
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teacherPageRouter.get('/dashboard', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/teacher/dashboard.html')));
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teacherPageRouter.get('/grade_entry', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/teacher/grade_entry.html')));
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teacherPageRouter.get('/grade_management', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/teacher/grade_management.html')));
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app.use('/teacher', teacherPageRouter);
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// Admin Pages
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const adminPageRouter = express.Router();
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adminPageRouter.use(requirePageAuth, requirePageRole(['admin']));
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adminPageRouter.get('/dashboard', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/admin/dashboard.html')));
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adminPageRouter.get('/student_management', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/admin/student_management.html')));
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adminPageRouter.get('/user_management', (req, res) => res.sendFile(path.join(__dirname, '../frontend/views/admin/user_management.html')));
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app.use('/admin', adminPageRouter);
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// --- API Routes ---
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app.use('/api/auth', authRoutes);
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app.use('/api/student', studentRoutes);
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app.use('/api/teacher', teacherRoutes);
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app.use('/api/admin', adminRoutes);
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// Error Handler
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app.use((req, res) => {
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res.status(404).json({ success: false, message: 'Not Found' });
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});
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app.use(errorHandler);
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// Start Server
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app.listen(PORT, async () => {
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console.log(`Server running on port ${PORT}`);
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console.log(`访问地址: http://localhost:${PORT}`);
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await db.testConnection();
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}); |