node.js - Puppeteer 使用多个代理并在代理拒绝连接时更改自动代理

Question

你能告诉我这是否可行吗？

我想使用多个代理并在代理拒绝连接时自动更改代理。

args: [
    '--proxy-server=127.0.0.1:9876', // Or whatever the address is
]

因此，您可以使用一个代理，但如何使用多个并在拒绝连接时自动更改？

Answer 1

使用 Tor。

您可以 install the tor package这将允许您通过 Tor 网络使用 Puppeteer 浏览，并非常容易地更改您的身份(IP 地址)。

使用 --proxy-server 标志用 Tor 启动 Puppeteer:

const browser = await puppeteer.launch({
  args: [
    '--proxy-server=socks5://127.0.0.1:9050',
  ],
});

然后，在 page.on('response') 上, 使用 child_process.exec() 更改代理如果响应不成功 ( response.ok() === false )。

以下命令将创建一个新的 Tor 身份:

(echo authenticate \'""\'; echo signal newnym; echo quit) | nc localhost 9051

示例用法:

'use strict';

const puppeteer = require('puppeteer');
const exec = require('child_process').exec;

(async () => {
  const browser = await puppeteer.launch({
    args: [
      '--proxy-server=socks5://127.0.0.1:9050'
    ],
  });
  const page = await browser.newPage();
  let current_ip_address = '';
  
  page.on('response', response => {
    if (response.ok() === false) {
      exec('(echo authenticate \'""\'; echo signal newnym; echo quit) | nc localhost 9051', (error, stdout, stderr) => {
        if (stdout.match(/250/g).length === 3) {
          console.log('Success: The IP Address has been changed.');
        } else {
          console.log('Error: A problem occured while attempting to change the IP Address.');
        }
      });
    } else {
      console.log('Success: The Page Response was successful (no need to change the IP Address).');
    }
  });
  
  await page.goto('http://checkip.amazonaws.com/');
  
  current_ip_address = await page.evaluate(() => document.body.textContent.trim());
  
  console.log(current_ip_address);
  
  await browser.close();
})();

Note: Tor may take a moment to change identities, so it might be a good call to verify that the IP Address is different before continuing with your program.