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from flask import Flask, session, request, render_template_string, render_template
import json
import os
app = Flask(__name__)
app.config['SECRET_KEY'] = os.urandom(32).hex()
@app.route('/', methods=['GET', 'POST'])
def store():
if not session.get('name'):
session['name'] = ''.join("customer")
session['permission'] = 0
error_message = ''
if request.method == 'POST':
error_message = '<p style="color: red; font-size: 0.8em;">该商品暂时无法购买，请稍后再试！</p>'
products = [
{"id": 1, "name": "美式咖啡", "price": 9.99, "image": "1.png"},
{"id": 2, "name": "橙c美式", "price": 19.99, "image": "2.png"},
{"id": 3, "name": "摩卡", "price": 29.99, "image": "3.png"},
{"id": 4, "name": "卡布奇诺", "price": 19.99, "image": "4.png"},
{"id": 5, "name": "冰拿铁", "price": 29.99, "image": "5.png"}
]
return render_template('index.html',
error_message=error_message,
session=session,
products=products)
def add():
pass
@app.route('/add', methods=['POST', 'GET'])
def adddd():
if request.method == 'GET':
return '''
<html>
<body style="background-image: url('/static/img/7.png'); background-size: cover; background-repeat: no-repeat;">
<h2>添加商品</h2>
<form id="productForm">
<p>商品名称: <input type="text" id="name"></p>
<p>商品价格: <input type="text" id="price"></p>
<button type="button" onclick="submitForm()">添加商品</button>
</form>
<script>
function submitForm() {
const nameInput = document.getElementById('name').value;
const priceInput = document.getElementById('price').value;
fetch(`/add?price=${encodeURIComponent(priceInput)}`, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: nameInput
})
.then(response => response.text())
.then(data => alert(data))
.catch(error => console.error('错误:', error));
}
</script>
</body>
</html>
'''
elif request.method == 'POST':
if request.data:
try:
raw_data = request.data.decode('utf-8')
if check(raw_data):
#检测添加的商品是否合法
return "该商品违规，无法上传"
json_data = json.loads(raw_data)
if not isinstance(json_data, dict):
return "添加失败1"
merge(json_data, add)
return "你无法添加商品哦"
except (UnicodeDecodeError, json.JSONDecodeError):
return "添加失败2"
except TypeError as e:
return f"添加失败3"
except Exception as e:
return f"添加失败4"
return "添加失败5"
@app.route('/aaadminnn', methods=['GET', 'POST'])
def admin():
if session.get('name') == "admin" and session.get('permission') != 0:
permission = session.get('permission')
if check1(permission):
# 检测添加的商品是否合法
return "非法权限"
if request.method == 'POST':
return '<script>alert("上传成功！");window.location.href="/aaadminnn";</script>'
upload_form = '''
<h2>商品管理系统</h2>
<form method=POST enctype=multipart/form-data style="margin:20px;padding:20px;border:1px solid #ccc">
<h3>上传新商品</h3>
<input type=file name=file required style="margin:10px"><br>
<small>支持格式：jpg/png（最大2MB）</small><br>
<input type=submit value="立即上传" style="margin:10px;padding:5px 20px">
</form>
'''
original_template = 'Hello admin!!!Your permissions are{}'.format(permission)
new_template = original_template + upload_form
return render_template_string(new_template)
else:
return "<script>alert('You are not an admin');window.location.href='/'</script>"
def merge(src, dst):
for k, v in src.items():
if hasattr(dst, '__getitem__'):
if dst.get(k) and type(v) == dict:
merge(v, dst.get(k))
else:
dst[k] = v
elif hasattr(dst, k) and type(v) == dict:
merge(v, getattr(dst, k))
else:
setattr(dst, k, v)
def check(raw_data, forbidden_keywords=None):
"""
检查原始数据中是否包含禁止的关键词
如果包含禁止关键词返回 True，否则返回 False
"""
# 设置默认禁止关键词
if forbidden_keywords is None:
forbidden_keywords = ["app", "config", "init", "globals", "flag", "SECRET", "pardir", "class", "mro", "subclasses", "builtins", "eval", "os", "open", "file", "import", "cat", "ls", "/", "base", "url", "read"]
# 检查是否包含任何禁止关键词
return any(keyword in raw_data for keyword in forbidden_keywords)
param_black_list = ['config', 'session', 'url', '\\', '<', '>', '%1c', '%1d', '%1f', '%1e', '%20', '%2b', '%2c', '%3c', '%3e', '%c', '%2f',
'b64decode', 'base64', 'encode', 'chr', '[', ']', 'os', 'cat', 'flag', 'set', 'self', '%', 'file', 'pop(',
'setdefault', 'char', 'lipsum', 'update', '=', 'if', 'print', 'env', 'endfor', 'code', '=' ]
# 增强WAF防护
def waf_check(value):
# 检查是否有不合法的字符
for black in param_black_list:
if black in value:
return False
return True
# 检查是否是自动化工具请求
def is_automated_request():
user_agent = request.headers.get('User-Agent', '').lower()
# 如果是常见的自动化工具的 User-Agent，返回 True
automated_agents = ['fenjing', 'curl', 'python', 'bot', 'spider']
return any(agent in user_agent for agent in automated_agents)
def check1(value):
if is_automated_request():
print("Automated tool detected")
return True
# 使用WAF机制检查请求的合法性
if not waf_check(value):
return True
return False
app.run(host="0.0.0.0",port=5014)
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