python selenium chrome使用验证代理

#!/usr/bin/env python
# coding: utf-8
import zipfile
import string
from selenium import webdriver
import time


def create_proxyauth_extension(proxy_host, proxy_port,
                               proxy_username, proxy_password,
                               scheme='http', plugin_path=None):

    if plugin_path is None:
        plugin_path = r'D:\link_classification_spider\proxy_auth_plugin.zip'

    manifest_json = """
        {
            "version": "1.0.0",
            "manifest_version": 2,
            "name": "Chrome Proxy",
            "permissions": [
                "proxy",
                "tabs",
                "unlimitedStorage",
                "storage",
                "<all_urls>",
                "webRequest",
                "webRequestBlocking"
            ],
            "background": {
                "scripts": ["background.js"]
            },
            "minimum_chrome_version":"22.0.0"
        }
        """

    background_js = string.Template(
        """
        var config = {
                mode: "fixed_servers",
                rules: {
                  singleProxy: {
                    scheme: "${scheme}",
                    host: "${host}",
                    port: parseInt(${port})
                  },
                  bypassList: ["foobar.com"]
                }
              };

        chrome.proxy.settings.set({value: config, scope: "regular"}, function() {});

        function callbackFn(details) {
            return {
                authCredentials: {
                    username: "${username}",
                    password: "${password}"
                }
            };
        }

        chrome.webRequest.onAuthRequired.addListener(
                    callbackFn,
                    {urls: ["<all_urls>"]},
                    ['blocking']
        );
        """
    ).substitute(
        host=proxy_host,
        port=proxy_port,
        username=proxy_username,
        password=proxy_password,
        scheme=scheme,
    )
    with zipfile.ZipFile(plugin_path, 'w') as zp:
        zp.writestr("manifest.json", manifest_json)
        zp.writestr("background.js", background_js)

    return plugin_path


if __name__ == '__main__':
    proxyauth_plugin_path = create_proxyauth_extension(
        proxy_host="proxy.abuyun.com",
        proxy_port=9020,
        proxy_username="username",
        proxy_password="password",
        plugin_path='proxy_auth_plugin.zip',
    )
    chrome_options = webdriver.ChromeOptions()
    chrome_options.add_argument("--start_maximized")
    chrome_options.add_extension(proxyauth_plugin_path)
    browser = webdriver.Chrome(chrome_options=chrome_options)
    browser.get('http://httpbin.org/get')
    browser.implicitly_wait(20)
    time.sleep(10)
    browser.quit()