如何在自定义下载器中启用setting中配置的代理？

[suyin-long]

环境

• Windows 11
• feapder 1.8.6

描述

经过测试在没有自定义下载器时，运行代码可以走 setting 中配置的代理，测试代码和 setting 配置如下：

• 测试代码

  import feapder
  
  class AirSpiderDemo(feapder.AirSpider):
    def start_requests(self):
        url = "http://myip.ipip.net/"
        yield feapder.Request(url, verify=False, method="GET")
  
    def download_midware(self, request):
        request.headers = {
            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
            "Accept-Language": "zh-CN,zh;q=0.9",
            "Cache-Control": "max-age=0",
            "Proxy-Connection": "keep-alive",
            "Upgrade-Insecure-Requests": "1",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36"
        }
        return request
  
    def parse(self, request, response):
        print(response.text)
  
  if __name__ == "__main__":
    AirSpiderDemo(thread_count=1).start()
  

• setting 配置

  # # 设置代理
  PROXY_EXTRACT_API = '自己的提取代理API'  # 代理提取API ，返回的代理分割符为\r\n
  PROXY_ENABLE = True

  这时候运行代码，观察打印结果，打印结果如下：

  当前 IP：111.127.99.43  来自于：中国 内蒙古 兴安盟  电信

  因为我本地IP是深圳的，通过观察打印的结果可知，代理生效了。

然后再测试自定义下载器后，setting 配置的代理是否生效，测试代码如下：

import feapder
import cloudscraper

class AirSpiderDemo(feapder.AirSpider):
    def start_requests(self):
        url = "http://myip.ipip.net/"
        yield feapder.Request(url, verify=False, method="GET")

    def download_midware(self, request):
        headers = {
            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
            "Accept-Language": "zh-CN,zh;q=0.9",
            "Cache-Control": "max-age=0",
            "Proxy-Connection": "keep-alive",
            "Upgrade-Insecure-Requests": "1",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36"
        }

        # 绕过某些网站的反爬
        scraper = cloudscraper.create_scraper()
        resp = scraper.get(request.url, headers=headers)
        response = feapder.Response(resp)
        return request, response

    def parse(self, request, response):
        print(response.text)

if __name__ == "__main__":
    AirSpiderDemo(thread_count=1).start()

setting 配置保持不变，运行结果如下：

当前 IP：113.81.233.20  来自于：中国 广东 深圳  电信

这个结果显示的是我本地的IP，说明自定义下载器后 setting 中配置的代理不生效！那么该如何使 setting 中配置代理生效呢？

[Boris-code]

这一看就没生效，请求是你自己发起的

想要用框架的代理，可以用下面的写法

from feapder.network.proxy_pool import ProxyPool

proxy_pool = ProxyPool()
proxy = proxy_pool.get_proxy()

feapder版本为 1.8.8

[suyin-long]

亲测，feapder v1.8.8 版本管用。

import feapder
from feapder.network.proxy_pool import ProxyPool
from curl_cffi import requests

class AirSpiderDemo(feapder.AirSpider):
    def start_requests(self):
        url = "http://myip.ipip.net/"
        yield feapder.Request(url, verify=False, method="GET")

    def download_midware(self, request):
        headers = {
            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
            "Accept-Language": "zh-CN,zh;q=0.9",
            "Cache-Control": "max-age=0",
            "Proxy-Connection": "keep-alive",
            "Upgrade-Insecure-Requests": "1",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36"
        }

        # 代理 IP
        proxy_pool = ProxyPool()
        proxy = proxy_pool.get_proxy()
        print(proxy)

        # 绕过某些网站的反爬
        response = requests.get(request.url, headers=headers, proxies=proxy, impersonate="chrome110")
        return request, response

    def parse(self, request, response):
        print(response.text)

if __name__ == "__main__":
    AirSpiderDemo(thread_count=1).start()

打印结果如下：

{'http': 'http://223.109.206.190:8976', 'https': 'http://223.109.206.190:8976'}
当前 IP：1.196.233.223  来自于：中国 河南 信阳  电信

备注：这里我使用的是“隧道IP”，所以两个打印的两个IP会有区别，如果使用的是“独享IP”，打印的这两个IP将是一致的。

[suyin-long]

补充：feapder v1.8.6 版本的使用方法

import feapder
from feapder.network.proxy_pool import ProxyPool
from curl_cffi import requests

class AirSpiderDemo(feapder.AirSpider):
    def start_requests(self):
        url = "http://myip.ipip.net/"
        yield feapder.Request(url, verify=False, method="GET")

    def download_midware(self, request):
        headers = {
            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
            "Accept-Language": "zh-CN,zh;q=0.9",
            "Cache-Control": "max-age=0",
            "Proxy-Connection": "keep-alive",
            "Upgrade-Insecure-Requests": "1",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36"
        }

        # 代理 IP
        proxies = ProxyPool().get()
        print(proxies)
        # 绕过某些网站的反爬
        response = requests.get(request.url, headers=headers, impersonate="chrome110", proxies=proxies)
        return request, response

    def parse(self, request, response):
        print(response.text)

if __name__ == "__main__":
    AirSpiderDemo(thread_count=1).start()