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app.py
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app.py
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import sqlite3
from flask import *
import os
from functools import wraps
import time
app = Flask(__name__)
app.config['DEBUG'] = True
app.config['DATABASE'] = 'shop.db'
app.config['SECRET_KEY'] = 'cd0ed627-6057-dce6-cd73-79860777655e'
# 初始化数据库
def init_db():
with app.app_context():
db = get_db()
with app.open_resource('shop.sql', mode='r') as f:
db.cursor().executescript(f.read())
db.commit()
# 获取数据库连接
def get_db():
db = getattr(g, '_database', None)
if db is None:
db = g._database = sqlite3.connect(app.config['DATABASE'])
return db
# 登录拦截装饰器
def login_required(f):
@wraps(f)
def decorated_function(*args, **kwargs):
if 'username' not in session:
return jsonify({'message': '请先登录', 'timestamp': time.time() * 10000, 'code': 401, 'status': 'error'})
return f(*args, **kwargs)
return decorated_function
# 关闭数据库连接
@app.teardown_appcontext
def close_connection(exception):
db = getattr(g, '_database', None)
if db is not None:
db.close()
@app.route('/')
def f_login():
if 'username' in session:
return f"<script>alert('欢迎回来，{session['username']}');location.href='/dashboard';</script>"
else:
return render_template('login.html')
@app.route('/register')
def f_register():
return render_template('register.html')
@app.route('/dashboard')
@login_required
def f_dashboard():
return render_template('dashboard.html')
@app.route('/orders')
@login_required
def f_orders():
return render_template('orders.html')
@app.route('/coupons')
@login_required
def f_coupons():
return render_template('coupons.html')
@app.route('/logout')
@login_required
def f_logout():
session.pop('username', None)
return redirect(url_for('f_login'))
@app.route('/checkout')
@login_required
def f_checkout():
return render_template('checkout.html')
# 注册路由
@app.route('/api/register', methods=['POST'])
def register():
username = request.json.get('username')
password = request.json.get('password')
if not username or not password:
return jsonify({'message': '用户名和密码不能为空', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
db = sqlite3.connect(app.config['DATABASE'])
# 判断用户名是否已存在
cursor = db.cursor()
cursor.execute('SELECT * FROM user WHERE username = ?', (username,))
if user := cursor.fetchone():
return jsonify({'message': '用户名已存在', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
try:
cursor = db.cursor()
cursor.execute('INSERT INTO user (username, password) VALUES (?, ?)', (username, password))
db.commit()
# 为该用户生成3个优惠券
userid = cursor.lastrowid
for _ in range(3):
cursor.execute('INSERT INTO coupon (user_id, code, amount, reusable) VALUES (?, ?, ?, ?)', (userid, os.urandom(16).hex(), 20.00, 1))
db.commit()
user_id = cursor.lastrowid
return jsonify({'message': '注册成功', 'user_id': user_id, 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
except:
db.rollback()
return jsonify({'message': '注册失败', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 登录路由
@app.route('/api/login', methods=['POST'])
def login(): # sourcery skip: use-named-expression
if 'username' in session:
return jsonify({'message': '您已是登录状态，如需重新登陆请先退出原账号', 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
username = request.json.get('username')
password = request.json.get('password')
if not username or not password:
return jsonify({'message': '用户名和密码不能为空', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
cursor.execute('SELECT * FROM user WHERE username = ? AND password = ?', (username, password))
user = cursor.fetchone()
if user:
session['username'] = username
return jsonify({'message': '登录成功', 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
else:
return jsonify({'message': '用户名或密码不正确', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 列出所有商品路由
@app.route('/api/shop/product/list', methods=['GET'])
@login_required
def list_products():
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
cursor.execute('SELECT id, name, price FROM product')
products = [{'id': row[0], 'name': row[1], 'price': row[2]} for row in cursor.fetchall()]
db.close()
return jsonify(products)
# 查看商品详情路由
@app.route('/api/shop/product/detail', methods=['GET'])
@login_required
def product_detail():
product_id = request.args.get('product_id')
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
# 查询商品信息
cursor.execute('SELECT id, name, price FROM product WHERE id = ?', (product_id,))
if product := cursor.fetchone():
product_detail = {
'id': product[0],
'name': product[1],
'price': product[2]
}
db.close()
return jsonify(product_detail)
else:
db.close()
return jsonify({'message': '商品不存在', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 购买商品路由 漏洞：越权使用全网任意用户的优惠券 -> 0元购
@app.route('/api/shop/product/buy', methods=['POST'])
@login_required
def buy_product():
product_id = request.json.get('product_id')
coupon_code = request.json.get('coupon_code')
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
# 判断优惠券是否存在
if coupon_code:
cursor.execute('SELECT * FROM coupon WHERE code = ?', (coupon_code,))
if not cursor.fetchone():
return jsonify({'message': f'优惠券{coupon_code}不存在', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 获取商品价格
cursor.execute('SELECT price FROM product WHERE id = ?', (product_id,))
product_price = cursor.fetchone()[0]
# 获取用户余额
user_balance = 0.00
username = session.get('username')
cursor.execute('SELECT balance FROM user WHERE username = ?', (username,))
if result := cursor.fetchone():
user_balance = result[0]
# 获取优惠券额度
coupon_amount = 0.00
if coupon_code:
cursor.execute('SELECT amount FROM coupon WHERE code = ?', (coupon_code,))
coupon_amount = cursor.fetchone()[0]
# 判断余额是否足够
total_amount = product_price - coupon_amount
if total_amount <= 0:
total_amount = 0.00
if user_balance >= total_amount:
# 减少余额
user_balance -= total_amount
# 更新用户余额
cursor.execute('UPDATE user SET balance = ? WHERE username = ?', (user_balance, username))
# 生成订单
user_id = cursor.execute('SELECT id FROM user WHERE username = ?', (username,)).fetchone()[0]
cursor.execute('INSERT INTO `order` (user_id, product_id, quantity, price) VALUES (?, ?, ?, ?)',
(user_id, product_id, 1, total_amount))
db.commit()
db.close()
if coupon_code:
return jsonify({'message': f'successfully to buy with coupon [{coupon_code}] ', 'order_id': cursor.lastrowid, 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
else:
return jsonify({'message': '购买成功', 'order_id': cursor.lastrowid, 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
else:
db.close()
return jsonify({'message': '余额不足', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 列出优惠券路由
@app.route('/api/shop/coupon/list', methods=['GET'])
@login_required
def list_coupons():
username = session['username']
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
cursor.execute('SELECT id, code, amount, reusable FROM coupon WHERE user_id = (SELECT id FROM user WHERE username = ?)', (username,))
coupons = [{'id': row[0], 'code': row[1], 'amount': row[2], 'reusable': bool(row[3])} for row in cursor.fetchall()]
db.close()
print(coupons)
return jsonify(coupons)
# 列出订单路由
@app.route('/api/shop/order/list', methods=['GET'])
@login_required
def list_orders():
username = session['username']
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
cursor.execute('SELECT id, user_id, product_id, quantity, price FROM `order` WHERE user_id = (SELECT id FROM user WHERE username = ?)', (username,))
orders = [{'id': row[0], 'user_id': row[1], 'product_id': row[2], 'quantity': row[3], 'price': row[4]} for row in cursor.fetchall()]
db.close()
return jsonify(orders)
# 查看订单详情路由 漏洞：越权查看任意订单
@app.route('/api/shop/order/detail', methods=['GET'])
@login_required
def order_detail():
order_id = request.args.get('order_id')
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
# 查询订单信息
cursor.execute('SELECT id, user_id, product_id, quantity, price FROM `order` WHERE id = ?', (order_id,))
order = cursor.fetchone()
if order:
order_detail = {
'id': order[0],
'user_id': order[1],
'product_id': order[2],
'quantity': order[3],
'price': order[4]
}
db.close()
return jsonify({'message': 'get order detail information successfully', 'data': order_detail, 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
else:
db.close()
return jsonify({'message': '订单不存在', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 删除订单路由
@app.route('/api/shop/order/delete', methods=['POST'])
@login_required
def delete_order():
order_id = request.json.get('order_id')
username = session['username']
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
# 检查订单是否存在并属于当前用户
cursor.execute('SELECT user_id FROM `order` WHERE id = ?', (order_id,))
result = cursor.fetchone()
if not result:
db.close()
return jsonify({'message': '订单不存在或无权限删除该订单', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
user_id = result[0]
current_user_id = cursor.execute('SELECT id FROM user WHERE username = ?', (username,)).fetchone()[0]
if user_id != current_user_id:
db.close()
return jsonify({'message': '订单不存在或无权限删除该订单', 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
# 执行删除操作
cursor.execute('DELETE FROM `order` WHERE id = ?', (order_id,))
db.commit()
db.close()
return jsonify({'message': '订单删除成功', 'timestamp': time.time() * 10000, 'code': 200, 'status': 'success'})
# 获取余额路由
@app.route('/api/user/balance', methods=['GET'])
@login_required
def get_balance():
username = session['username']
db = sqlite3.connect(app.config['DATABASE'])
cursor = db.cursor()
# 查询用户余额
cursor.execute('SELECT balance FROM user WHERE username = ?', (username,))
result = cursor.fetchone()
if result:
balance = result[0]
db.close()
return jsonify({'balance': balance})
else:
db.close()
return jsonify({'message': '获取用户余额失败', 'balance': 0.00, 'timestamp': time.time() * 10000, 'code': 500, 'status': 'error'})
if __name__ == '__main__':
app.run(port=5888)