feat: 切换为MariaDB数据库存储

app/api/auth/register/route.ts

@@ -1,31 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
-import fs from 'fs/promises';
-import path from 'path';
 import crypto from 'crypto';
-
-const DATA_DIR = path.join(process.cwd(), 'data');
-const USERS_FILE = path.join(DATA_DIR, 'users.json');
-
-interface User {
-  id: string;
-  username: string;
-  passwordHash: string;
-  token: string;
-  createdAt: string;
-}
-
-async function readUsers(): Promise<User[]> {
-  try {
-    const data = await fs.readFile(USERS_FILE, 'utf-8');
-    return JSON.parse(data);
-  } catch {
-    return [];
-  }
-}
-
-async function writeUsers(users: User[]): Promise<void> {
-  await fs.writeFile(USERS_FILE, JSON.stringify(users, null, 2));
-}
+import pool from '@/lib/db';
 
 function hashPassword(password: string): string {
   return crypto.createHash('sha256').update(password).digest('hex');
@@ -36,6 +11,7 @@ function generateToken(): string {
 }
 
 export async function POST(request: NextRequest) {
+  let connection;
   try {
     const { username, password } = await request.json();
     
@@ -47,23 +23,19 @@ export async function POST(request: NextRequest) {
       return NextResponse.json({ error: '用户名至少3位，密码至少6位' }, { status: 400 });
     }
     
-    const users = await readUsers();
+    connection = await pool.getConnection();
     
-    if (users.find(u => u.username === username)) {
+    const [rows] = await connection.query<any[]>('SELECT id FROM users WHERE username = ?', [username]);
+    
+    if (rows.length > 0) {
       return NextResponse.json({ error: '用户名已存在' }, { status: 400 });
     }
     
     const token = generateToken();
-    const newUser: User = {
-      id: crypto.randomUUID(),
-      username,
-      passwordHash: hashPassword(password),
-      token,
-      createdAt: new Date().toISOString()
-    };
-    
-    users.push(newUser);
-    await writeUsers(users);
+    await connection.query(
+      'INSERT INTO users (id, username, password_hash, token, created_at) VALUES (?, ?, ?, ?, ?)',
+      [crypto.randomUUID(), username, hashPassword(password), token, new Date()]
+    );
     
     const response = NextResponse.json({ success: true, username });
     response.cookies.set('auth_token', token, {
@@ -78,5 +50,7 @@ export async function POST(request: NextRequest) {
   } catch (error) {
     console.error('Register error:', error);
     return NextResponse.json({ error: '注册失败' }, { status: 500 });
+  } finally {
+    if (connection) connection.release();
   }
-}
+}