46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
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# @Time : 2023/8/14 12:20
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# @Author : Lan
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# @File : depends.py
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# @Software: PyCharm
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from typing import Union
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from datetime import datetime, timedelta
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from fastapi import Header, HTTPException, Request
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from core.response import APIResponse
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class IPRateLimit:
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def __init__(self, count, minutes):
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self.ips = {}
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self.count = count
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self.minutes = minutes
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def check_ip(self, ip):
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# 检查ip是否被禁止
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if ip in self.ips:
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if self.ips[ip]['count'] >= self.count:
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if self.ips[ip]['time'] + timedelta(minutes=self.minutes) > datetime.now():
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return False
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else:
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self.ips.pop(ip)
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return True
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def add_ip(self, ip):
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ip_info = self.ips.get(ip, {'count': 0, 'time': datetime.now()})
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ip_info['count'] += 1
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ip_info['time'] = datetime.now()
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self.ips[ip] = ip_info
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return ip_info['count']
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async def remove_expired_ip(self):
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for ip in list(self.ips.keys()):
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if self.ips[ip]['time'] + timedelta(minutes=self.minutes) < datetime.now():
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self.ips.pop(ip)
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def __call__(self, request: Request):
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ip = request.headers.get('X-Real-IP', request.headers.get('X-Forwarded-For', request.client.host))
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if not self.check_ip(ip):
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raise HTTPException(status_code=423, detail=f"请求次数过多，请稍后再试")
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return ip
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