基于Python的AI代码审计工具实现方案，结合DeepSeek API和商业化设计

以下是一个基于Python的AI代码审计工具实现方案，结合DeepSeek API和商业化设计，分为基础功能版和进阶扩展方向：

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基础版实现代码 (命令行工具)

import os
import requests
from dotenv import load_dotenv
import hashlib
import json
from typing import Dict, Optional# 加载环境变量（API密钥和计费配置）
load_dotenv()class CodeAuditTool:def __init__(self):self.api_url = "https://api.deepseek.com/v1/audit"self.api_key = os.getenv("DEEPSEEK_API_KEY")self.price_per_request = 0.02  # 每次请求费用（美元）self.user_db = "users.json"  # 简化用户存储def _call_deepseek_api(self, code: str) -> Dict:"""调用DeepSeek API进行代码审计"""headers = {"Authorization": f"Bearer {self.api_key}","Content-Type": "application/json"}payload = {"code": code,"language": "auto","checks": ["security", "performance", "best_practices"]}try:response = requests.post(self.api_url, json=payload, headers=headers)response.raise_for_status()return response.json()except requests.exceptions.RequestException as e:return {"error": str(e)}def _hash_code(self, code: str) -> str:"""生成代码哈希值用于去重"""return hashlib.sha256(code.encode()).hexdigest()def _check_balance(self, user_id: str) -> Optional[float]:"""检查用户余额"""try:with open(self.user_db, "r") as f:users = json.load(f)return users.get(user_id, {}).get("balance", 0)except (FileNotFoundError, json.JSONDecodeError):return Nonedef audit_code(self, user_id: str, code_path: str) -> Dict:"""执行代码审计"""# 读取代码文件try:with open(code_path, "r") as f:code = f.read()except IOError as e:return {"status": "error", "message": str(e)}# 检查余额balance = self._check_balance(user_id)if balance is None or balance < self.price_per_request:return {"status": "error", "message": "Insufficient balance"}# 调用APIresult = self._call_deepseek_api(code)# 扣费逻辑（需原子操作，此处为简化版）self._deduct_balance(user_id, self.price_per_request)return {"status": "success","code_hash": self._hash_code(code),"result": result,"cost": self.price_per_request}# 示例用法
if __name__ == "__main__":tool = CodeAuditTool()result = tool.audit_code("user_123", "test.py")print(json.dumps(result, indent=2))

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商业化扩展方案

1. 用户管理系统

# 在基础类中添加以下方法
class CodeAuditTool:# ... 原有代码 ...def register_user(self, username: str, password: str, plan: str = "free"):"""用户注册"""user_id = hashlib.sha256(username.encode()).hexdigest()[:8]with open(self.user_db, "a+") as f:# 实际应使用密码哈希存储users = json.load(f) if f.tell() else {}users[user_id] = {"balance": 10.00 if plan == "pro" else 0.00,"plan": plan,"remaining_quota": 100 if plan == "free" else -1  # -1表示无限}json.dump(users, f)def _deduct_balance(self, user_id: str, amount: float):"""余额扣减"""with open(self.user_db, "r+") as f:users = json.load(f)if users[user_id]["plan"] == "free":users[user_id]["remaining_quota"] -= 1else:users[user_id]["balance"] -= amountf.seek(0)json.dump(users, f)

2. 支付接口集成（示例：Stripe）

import stripe
stripe.api_key = os.getenv("STRIPE_KEY")class PaymentHandler:def create_checkout_session(self, user_id: str, amount: float):session = stripe.checkout.Session.create(payment_method_types=['card'],line_items=[{'price_data': {'currency': 'usd','product_data': {'name': 'Code Audit Credits'},'unit_amount': int(amount * 100),},'quantity': 1,}],mode='payment',metadata={"user_id": user_id},success_url='https://yourdomain.com/success',cancel_url='https://yourdomain.com/cancel')return session.url

3. 部署架构建议

前端（Web界面/CLI）│▼
Python API服务器（FastAPI/Flask）│├──▶ DeepSeek API├──▶ 支付网关（Stripe/PayPal）└──▶ 数据库（PostgreSQL/MongoDB）

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盈利模式设计

1. 分层订阅制

   • 免费版：每月10次基础扫描
   • 专业版（$29/月）：无限次扫描 + 优先支持
   • 企业版（定制报价）：自定义规则 + SLA保障

2. 按需计费

   • $0.02/次基础扫描
   • $0.05/次深度分析（包含数据流跟踪）

3. 联盟计划

   class AffiliateSystem:def generate_referral_link(self, user_id: str):return f"https://audit-tool.com?ref={user_id}"def track_conversion(self, referrer_id: str, new_user_id: str):# 给推荐人奖励$5self._add_credit(referrer_id, 5.00)
   

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安全增强建议

1. 代码预处理

def sanitize_code(code: str) -> str:"""移除敏感信息"""patterns = [r'\b(AKIA|ASIA)[A-Z0-9]{16}\b',  # AWS密钥r'-----BEGIN RSA PRIVATE KEY-----.*?-----END RSA PRIVATE KEY-----'  # SSH私钥]for pattern in patterns:code = re.sub(pattern, '[REDACTED]', code, flags=re.DOTALL)return code

2. 使用JWT进行API认证

from fastapi import Depends, HTTPException
from fastapi.security import OAuth2PasswordBeareroauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")async def get_current_user(token: str = Depends(oauth2_scheme)):try:payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])return payload.get("sub")except JWTError:raise HTTPException(status_code=401, detail="Invalid credentials")

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后续开发路线

1. 增加功能：

   • 多文件项目扫描
   • IDE插件（VSCode/IntelliJ）
   • CI/CD流水线集成（GitHub Action模板）

2. 商业化扩展：

   • 许可证密钥系统
   • 团队协作功能
   • 审计报告自动生成（PDF/HTML）

需要根据DeepSeek API的具体能力调整实现细节，建议先从MVP（最小可行产品）起步验证市场需求。