Update .gitignore and add files

back/blueprints/register.py

@@ -0,0 +1,59 @@
+from flask import Blueprint, request, jsonify, current_app
+import logging
+
+bp = Blueprint('register', __name__)
+logger = logging.getLogger(__name__)
+FRONTEND_ORIGINS = [
+    "http://localhost:8080",
+    "http://127.0.0.1:8080",
+    "http://[::1]:8080",
+    "http://localhost:5173",
+    "http://127.0.0.1:5173",
+    "http://[::1]:5173"
+]
+
+@bp.route('/register', methods=['POST', 'OPTIONS'])
+def register():
+    if request.method == 'OPTIONS':
+        origin = request.headers.get('Origin')
+        if origin in FRONTEND_ORIGINS:
+            response = jsonify()
+            response.headers.add('Access-Control-Allow-Origin', origin)
+            response.headers.add('Access-Control-Allow-Headers', 'Content-Type, Authorization')
+            response.headers.add('Access-Control-Allow-Methods', 'POST, OPTIONS')
+            response.headers.add('Access-Control-Allow-Credentials', 'true')
+            return response, 200
+
+    try:
+        logger.info("收到注册请求")
+        data = request.get_json()
+        if not data:
+            return jsonify({'message': '请求数据为空'}), 400
+
+        username = data.get('username')
+        password = data.get('password')
+        if not all([username, password]):
+            return jsonify({'message': '缺少用户名或密码'}), 400
+
+        db = current_app.get_db()
+        cursor = db.cursor()
+
+        # 检查用户名是否已存在
+        cursor.execute("SELECT id FROM user WHERE username = ?", (username,))
+        if cursor.fetchone():
+            return jsonify({'message': '用户名已存在'}), 400
+
+        # 插入数据时包含 permission_level（默认设为 Operator）
+        cursor.execute(
+            "INSERT INTO user (username, password, permission_level) VALUES (?, ?, ?)",
+            (username, password, 'Operator')
+        )
+        db.commit()
+
+        logger.info(f"用户 {username} 注册成功")
+        return jsonify({'message': '注册成功'}), 201
+
+    except Exception as e:
+        logger.error(f"服务器内部错误: {str(e)}", exc_info=True)
+        db.rollback()
+        return jsonify({'message': '服务器内部错误'}), 500