mirror of
https://github.com/NanmiCoder/MediaCrawler.git
synced 2026-02-24 09:00:50 +08:00
171 lines
6.3 KiB
Python
171 lines
6.3 KiB
Python
# -*- coding: utf-8 -*-
|
||
# Copyright (c) 2025 relakkes@gmail.com
|
||
#
|
||
# This file is part of MediaCrawler project.
|
||
# Repository: https://github.com/NanmiCoder/MediaCrawler/blob/main/proxy/providers/kuaidl_proxy.py
|
||
# GitHub: https://github.com/NanmiCoder
|
||
# Licensed under NON-COMMERCIAL LEARNING LICENSE 1.1
|
||
#
|
||
|
||
# 声明：本代码仅供学习和研究目的使用。使用者应遵守以下原则：
|
||
# 1. 不得用于任何商业用途。
|
||
# 2. 使用时应遵守目标平台的使用条款和robots.txt规则。
|
||
# 3. 不得进行大规模爬取或对平台造成运营干扰。
|
||
# 4. 应合理控制请求频率，避免给目标平台带来不必要的负担。
|
||
# 5. 不得用于任何非法或不当的用途。
|
||
#
|
||
# 详细许可条款请参阅项目根目录下的LICENSE文件。
|
||
# 使用本代码即表示您同意遵守上述原则和LICENSE中的所有条款。
|
||
|
||
|
||
# -*- coding: utf-8 -*-
|
||
# @Author : relakkes@gmail.com
|
||
# @Time : 2024/4/5 09:43
|
||
# @Desc : 快代理HTTP实现，官方文档：https://www.kuaidaili.com/?ref=ldwkjqipvz6c
|
||
import os
|
||
import re
|
||
from typing import Dict, List
|
||
|
||
import httpx
|
||
from pydantic import BaseModel, Field
|
||
|
||
from proxy import IpCache, IpInfoModel, ProxyProvider
|
||
from proxy.types import ProviderNameEnum
|
||
from tools import utils
|
||
|
||
# 快代理的IP代理过期时间向前推移5秒，避免临界时间使用失败
|
||
DELTA_EXPIRED_SECOND = 5
|
||
|
||
|
||
class KuaidailiProxyModel(BaseModel):
|
||
ip: str = Field("ip")
|
||
port: int = Field("端口")
|
||
expire_ts: int = Field("过期时间，单位秒，多少秒后过期")
|
||
|
||
|
||
def parse_kuaidaili_proxy(proxy_info: str) -> KuaidailiProxyModel:
|
||
"""
|
||
解析快代理的IP信息
|
||
Args:
|
||
proxy_info:
|
||
|
||
Returns:
|
||
|
||
"""
|
||
proxies: List[str] = proxy_info.split(":")
|
||
if len(proxies) != 2:
|
||
raise Exception("not invalid kuaidaili proxy info")
|
||
|
||
pattern = r'(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}):(\d{1,5}),(\d+)'
|
||
match = re.search(pattern, proxy_info)
|
||
if not match.groups():
|
||
raise Exception("not match kuaidaili proxy info")
|
||
|
||
return KuaidailiProxyModel(
|
||
ip=match.groups()[0],
|
||
port=int(match.groups()[1]),
|
||
expire_ts=int(match.groups()[2])
|
||
)
|
||
|
||
|
||
class KuaiDaiLiProxy(ProxyProvider):
|
||
def __init__(self, kdl_user_name: str, kdl_user_pwd: str, kdl_secret_id: str, kdl_signature: str):
|
||
"""
|
||
|
||
Args:
|
||
kdl_user_name:
|
||
kdl_user_pwd:
|
||
"""
|
||
self.kdl_user_name = kdl_user_name
|
||
self.kdl_user_pwd = kdl_user_pwd
|
||
self.api_base = "https://dps.kdlapi.com/"
|
||
self.secret_id = kdl_secret_id
|
||
self.signature = kdl_signature
|
||
self.ip_cache = IpCache()
|
||
self.proxy_brand_name = ProviderNameEnum.KUAI_DAILI_PROVIDER.value
|
||
self.params = {
|
||
"secret_id": self.secret_id,
|
||
"signature": self.signature,
|
||
"pt": 1,
|
||
"format": "json",
|
||
"sep": 1,
|
||
"f_et": 1,
|
||
}
|
||
|
||
async def get_proxy(self, num: int) -> List[IpInfoModel]:
|
||
"""
|
||
快代理实现
|
||
Args:
|
||
num:
|
||
|
||
Returns:
|
||
|
||
"""
|
||
uri = "/api/getdps/"
|
||
|
||
# 优先从缓存中拿 IP
|
||
ip_cache_list = self.ip_cache.load_all_ip(proxy_brand_name=self.proxy_brand_name)
|
||
if len(ip_cache_list) >= num:
|
||
return ip_cache_list[:num]
|
||
|
||
# 如果缓存中的数量不够，从IP代理商获取补上，再存入缓存中
|
||
need_get_count = num - len(ip_cache_list)
|
||
self.params.update({"num": need_get_count})
|
||
|
||
ip_infos: List[IpInfoModel] = []
|
||
async with httpx.AsyncClient() as client:
|
||
response = await client.get(self.api_base + uri, params=self.params)
|
||
|
||
if response.status_code != 200:
|
||
utils.logger.error(f"[KuaiDaiLiProxy.get_proxies] statuc code not 200 and response.txt:{response.text}, status code: {response.status_code}")
|
||
raise Exception("get ip error from proxy provider and status code not 200 ...")
|
||
|
||
ip_response: Dict = response.json()
|
||
if ip_response.get("code") != 0:
|
||
utils.logger.error(f"[KuaiDaiLiProxy.get_proxies] code not 0 and msg:{ip_response.get('msg')}")
|
||
raise Exception("get ip error from proxy provider and code not 0 ...")
|
||
|
||
proxy_list: List[str] = ip_response.get("data", {}).get("proxy_list")
|
||
for proxy in proxy_list:
|
||
proxy_model = parse_kuaidaili_proxy(proxy)
|
||
# expire_ts是相对时间（秒数），需要转换为绝对时间戳
|
||
# 提前DELTA_EXPIRED_SECOND秒认为过期，避免临界时间使用失败
|
||
ip_info_model = IpInfoModel(
|
||
ip=proxy_model.ip,
|
||
port=proxy_model.port,
|
||
user=self.kdl_user_name,
|
||
password=self.kdl_user_pwd,
|
||
expired_time_ts=proxy_model.expire_ts + utils.get_unix_timestamp() - DELTA_EXPIRED_SECOND,
|
||
|
||
)
|
||
ip_key = f"{self.proxy_brand_name}_{ip_info_model.ip}_{ip_info_model.port}"
|
||
# 缓存过期时间使用相对时间（秒数），也需要减去缓冲时间
|
||
self.ip_cache.set_ip(ip_key, ip_info_model.model_dump_json(), ex=proxy_model.expire_ts - DELTA_EXPIRED_SECOND)
|
||
ip_infos.append(ip_info_model)
|
||
|
||
return ip_cache_list + ip_infos
|
||
|
||
|
||
def new_kuai_daili_proxy() -> KuaiDaiLiProxy:
|
||
"""
|
||
构造快代理HTTP实例
|
||
支持两种环境变量命名格式：
|
||
1. 大写格式：KDL_SECERT_ID, KDL_SIGNATURE, KDL_USER_NAME, KDL_USER_PWD
|
||
2. 小写格式：kdl_secret_id, kdl_signature, kdl_user_name, kdl_user_pwd
|
||
优先使用大写格式，如果不存在则使用小写格式
|
||
Returns:
|
||
|
||
"""
|
||
# 支持大小写两种环境变量格式，优先使用大写
|
||
kdl_secret_id = os.getenv("KDL_SECERT_ID") or os.getenv("kdl_secret_id", "你的快代理secert_id")
|
||
kdl_signature = os.getenv("KDL_SIGNATURE") or os.getenv("kdl_signature", "你的快代理签名")
|
||
kdl_user_name = os.getenv("KDL_USER_NAME") or os.getenv("kdl_user_name", "你的快代理用户名")
|
||
kdl_user_pwd = os.getenv("KDL_USER_PWD") or os.getenv("kdl_user_pwd", "你的快代理密码")
|
||
|
||
return KuaiDaiLiProxy(
|
||
kdl_secret_id=kdl_secret_id,
|
||
kdl_signature=kdl_signature,
|
||
kdl_user_name=kdl_user_name,
|
||
kdl_user_pwd=kdl_user_pwd,
|
||
)
|