import os import requests import time from typing import Optional, Tuple, Dict, Any class ProxyChecker: def __init__(self, timeout: int = 5): """ 初始化代理检查器 Args: api_url: 获取代理的API地址 timeout: 请求超时时间（秒） """ self.timeout = timeout def get_proxies_from_api(self) -> list: """ 从API获取代理列表 Returns: list: 代理列表，格式为 [{"ip": "x.x.x.x", "port": xxxx}, ...] """ try: url = 'https://api.911proxy.com/web_v1/ip/get-ip-v3?app_key=67645499c25418a2669fe1470307fd56&pt=9&num=10&ep=&cc=&state=&city=&life=30&protocol=1&format=json' response = requests.get(url=url, timeout=self.timeout, verify=False) response.raise_for_status() data = response.json() # {'code': 200, 'msg': 'SUCCESS', 'data': {'list': ['5.78.16.61:24878', '5.78.16.61:24879', '5.78.16.61:24880', '5.78.16.61:24881', '5.78.16.61:24882', '5.78.16.61:24883', '5.78.16.61:24884', '5.78.16.61:24885', '5.78.16.61:24886', '5.78.16.61:24887', '5.78.16.61:24888', '5.78.16.61:24889', '5.78.16.61:24890', '5.78.16.61:24891', '5.78.16.61:24892', 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'5.78.16.61:25343', '5.78.16.61:25344', '5.78.16.61:25345', '5.78.16.61:25346', '5.78.16.61:25347', '5.78.16.61:25348', '5.78.16.61:25349', '5.78.16.61:25350', '5.78.16.61:25351', '5.78.16.61:25352', '5.78.16.61:25353', '5.78.16.61:25354', '5.78.16.61:25355', '5.78.16.61:25356', '5.78.16.61:25357', '5.78.16.61:25358', '5.78.16.61:25359', '5.78.16.61:25360', '5.78.16.61:25361', '5.78.16.61:25362', '5.78.16.61:25363', '5.78.16.61:25364', '5.78.16.61:25365', '5.78.16.61:25366', '5.78.16.61:25367', '5.78.16.61:25368', '5.78.16.61:25369', '5.78.16.61:25370', '5.78.16.61:25371', '5.78.16.61:25372', '5.78.16.61:25373', '5.78.16.61:25374', '5.78.16.61:25375', '5.78.16.61:25376', '5.78.16.61:25377']}, 'request_id': 'lVJGmO2Z3AKQkr5tzZEJ2xcHQ_91O7bR'} if data.get("code") == 200 and data.get("msg"): return [{"ip": ip_port.split(":")[0], "port": int(ip_port.split(":")[1])} for ip_port in data.get("data").get("list", [])] else: print(f"API返回错误: {data.get('msg')}") return [] except requests.exceptions.RequestException as e: print(f"获取代理失败: {e}") return [] except ValueError as e: print(f"解析JSON失败: {e}") return [] def check_proxy(self, proxy: Dict[str, Any]) -> bool: """ 检查单个代理是否有效 Args: proxy: 代理字典，包含ip和port Returns: bool: 代理是否有效 """ if proxy["port"] != '': proxy_url = f"http://{proxy['ip']}:{proxy['port']}" else: proxy_url = f"http://{proxy['ip']}" proxies = { "http": proxy_url, "https": proxy_url } test_urls = [ "https://www.facebook.com" ] for test_url in test_urls: try: start_time = time.time() response = requests.get( test_url, proxies=proxies, timeout=self.timeout, headers={ "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36" } ) response_time = time.time() - start_time if response.status_code == 200: print(f"代理 {proxy_url} 有效，响应时间: {response_time:.2f}s，测试URL: {test_url}") return True except (requests.exceptions.RequestException, requests.exceptions.ProxyError): continue return False def get_valid_proxy(self) -> Optional[Tuple[str, int]]: """ 获取并验证代理，返回第一个有效的代理 Returns: tuple: (ip, port) 或 None（如果没有有效代理） """ print("正在从API获取代理列表...") # 本地开发模式 if os.getenv("dev"): return "127.0.0.1", 1080 proxies = self.get_proxies_from_api() if not proxies: print("未获取到代理列表") return None print(f"获取到 {len(proxies)} 个代理，开始验证...") for proxy in proxies: print(f"正在验证代理: {proxy['ip']}:{proxy['port']}") if self.check_proxy(proxy): print(f"找到有效代理: {proxy['ip']}:{proxy['port']}") return (proxy['ip'], proxy['port']) print("所有代理均无效") return None def get_valid_proxy_dict(self) -> Optional[Dict[str, str]]: """ 获取有效的代理字典格式 Returns: dict: {"http": "http://ip:port", "https": "http://ip:port"} 或 None """ result = self.get_valid_proxy() if result: ip, port = result proxy_url = f"http://{ip}:{port}" return { "http": proxy_url, "https": proxy_url } return None def get_valid_proxy_url(self) -> Optional[str]: """ 获取有效的代理URL格式 (http://ip:port) Returns: str: "http://ip:port" 或 None """ result = self.get_valid_proxy() if result: ip, port = result return f"http://{ip}:{port}" return None # 使用示例 if __name__ == "__main__": # 你的API地址 API_URL = "你的API地址" # 替换为实际的API地址 checker = ProxyChecker(timeout=8) # 获取有效代理（返回元组格式） valid_proxy = checker.get_valid_proxy() if valid_proxy: ip, port = valid_proxy print(f"\n最终选择的代理: {ip}:{port}") # 使用代理示例 proxies = { "http": f"http://{ip}:{port}", "https": f"http://{ip}:{port}" } try: response = requests.get("http://httpbin.org/ip", proxies=proxies, timeout=10) print(f"使用代理请求测试: {response.text}") except Exception as e: print(f"测试请求失败: {e}") else: print("未找到有效代理") # 或者直接获取代理字典格式 # proxy_dict = checker.get_valid_proxy_dict() # if proxy_dict: # print(f"代理字典: {proxy_dict}")