双12账号异常告警 购买

import time

class AccountMonitor:
    def __init__(self):
        self.login_attempts = {}
        self.transaction_history = {}

    def log_login_attempt(self, user_id, ip_address):
        if user_id not in self.login_attempts:
            self.login_attempts[user_id] = []
        self.login_attempts[user_id].append((time.time(), ip_address))
        self.check_login_anomaly(user_id)

    def check_login_anomaly(self, user_id):
        attempts = self.login_attempts.get(user_id, [])
        if len(attempts) > 5 and len(set(ip for _, ip in attempts)) > 3:
            print(f"ALERT: User {user_id} has multiple login attempts from different IPs!")

    def log_transaction(self, user_id, amount, location):
        if user_id not in self.transaction_history:
            self.transaction_history[user_id] = []
        self.transaction_history[user_id].append((time.time(), amount, location))
        self.check_transaction_anomaly(user_id)

    def check_transaction_anomaly(self, user_id):
        transactions = self.transaction_history.get(user_id, [])
        recent_transactions = [t for t in transactions if time.time() - t[0] < 3600]
        if len(recent_transactions) > 3 and sum(t[1] for t in recent_transactions) > 10000:
            print(f"ALERT: User {user_id} has made multiple large transactions!")

# 示例使用
monitor = AccountMonitor()
monitor.log_login_attempt('user123', '192.168.1.1')
monitor.log_transaction('user123', 5000, 'New York')