Python同步异步爬虫通过代理访问HTTPS

一、环境：

1. Python以及库的版本
   • Python 3.10.5
   • requests 2.28.1
   • aiohttp 3.8.1
2. 代理软件
   • CCProxy V8.0

二、requests通过代理访问HTTPS网页

import urllib3

import requests


headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
                  "AppleWebKit/537.36 (KHTML, like Gecko) "
                  "Chrome/107.0.0.0 Safari/398.63"}
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)


def get_proxy_url(ip=None, port=None, scheme="http",
                  *, username=None, passwd=None):
    if ip is None:
        return None
    if port is None:
        port = 80
    user_pwd = ""
    if username:
        user_pwd = username
    if passwd:
        user_pwd += ":" + passwd
    if user_pwd:
        user_pwd += "@"
    url = f"{scheme}://{user_pwd}{ip}:{port}"
    return url


def my_get(url, proxy_url=None):
    proxies = None
    if proxy_url:
        proxies = {"http": proxy_url, "https": proxy_url}
    print(proxies)
    res = requests.get(url, headers=headers, verify=False,
                       proxies=proxies)
    return res.status_code, res.content


# 将下面的代理换成自己的信息即可
proxy = get_proxy_url("192.168.111.222", "8080",
                      username="++++++", passwd="*********")
print(my_get("https://www.baidu.com", proxy))

1. 如果密码中含有特殊字符，可以使用：%+16进制的字符串，
   例如：ABC#$%123,可以使用%41%62%43%23%24%25%31%32%33替代
2. 禁用InsecureRequestWarning告警：
   urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

三、requests.session通过代理访问HTTPS网页

# 其他代码与上面相同
def my_get(url, proxy_url=None):
    proxies = None
    if proxy_url:
        proxies = {"http": proxy_url, "https": proxy_url}

    session = requests.Session()
    session.proxies.update(proxies)
    session.headers.update(headers)
    session.verify = False
    res = session.get(url)
    return res.status_code, res.content

三、异步协程方式通过代理访问HTTPS网页

import asyncio
import aiohttp

# 其他代码与上面相同
def my_get(url, proxy_url=None):
    async def _inner_get(a_url):
        conn = aiohttp.TCPConnector(ssl=False)
        async with aiohttp.ClientSession(connector=conn) as sess:
            async with sess.get(a_url, proxy=proxy_url, timeout=3) as res:
                content = await res.read()
                return res.status, content

    async def _inner_tasks(*a_urls):
        tasks = [asyncio.create_task(_inner_get(one_url))
                 for one_url in a_urls]
        result = await asyncio.gather(*tasks, return_exceptions=True)
        return result
        # 解决RuntimeError: Event loop is closed

    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
    dl_result = asyncio.run(_inner_tasks(url))
    return dl_result[0]

注意,为了解决RuntimeError: Event loop is closed， 在window下需要执行

asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())