Selenium 在旋转代理时抛出 InvalidArgumentException

Posted 2023-02-24

【中文标题】Selenium 在旋转代理时抛出 InvalidArgumentException

【英文标题】：Selenium throws an InvalidArgumentException when rotating proxy

【发布时间】：2019-01-25 21:02:31

【问题描述】：

所以我在 GitHub 上找到了这段代码，用于从 https://free-proxy-list.net/ 收集 IP 并轮换它们。但是当我尝试运行它时收到一条错误消息。

我尝试调试它，但找不到解决方案。我发现我的 Chrome Web 驱动程序的新版本出了问题？

这是代码：

from selenium import webdriver
from selenium.webdriver.chrome.options import DesiredCapabilities
from selenium.webdriver.common.proxy import Proxy, ProxyType

import time


co = webdriver.ChromeOptions()
co.add_argument("log-level=3")
co.add_argument("--headless")

def get_proxies(co=co):
    driver = webdriver.Chrome(chrome_options=co)
    driver.get("https://free-proxy-list.net/")

    PROXIES = []
    proxies = driver.find_elements_by_css_selector("tr[role='row']")
    for p in proxies:
        result = p.text.split(" ")

        if result[-1] == "yes":
            PROXIES.append(result[0]+":"+result[1])

    driver.close()
    return PROXIES


ALL_PROXIES = get_proxies()


def proxy_driver(PROXIES, co=co):
    prox = Proxy()

    if PROXIES:
        pxy = PROXIES[-1]
    else:
        print("--- Proxies used up (%s)" % len(PROXIES))
        PROXIES = get_proxies()

    prox.proxy_type = ProxyType.MANUAL
    prox.http_proxy = pxy
    prox.socks_proxy = pxy
    prox.ssl_proxy = pxy

    capabilities = webdriver.DesiredCapabilities.CHROME
    prox.add_to_capabilities(capabilities)

    driver = webdriver.Chrome(chrome_options=co, desired_capabilities=capabilities)

    return driver



# --- YOU ONLY NEED TO CARE FROM THIS LINE ---
# creating new driver to use proxy
pd = proxy_driver(ALL_PROXIES)

# code must be in a while loop with a try to keep trying with different proxies
running = True

while running:
    try:
        mycodehere()
        
        # if statement to terminate loop if code working properly
        something()
        
        # you 
    except:
        new = ALL_PROXIES.pop()
        
        # reassign driver if fail to switch proxy
        pd = proxy_driver(ALL_PROXIES)
        print("--- Switched proxy to: %s" % new)
        time.sleep(1)

这是我得到的错误：

Traceback (most recent call last):
  File "test_v1.py", line 53, in <module>
    pd = proxy_driver(ALL_PROXIES)
  File "test_v1.py", line 47, in proxy_driver
    driver = webdriver.Chrome('/home/djurovic/Desktop/Linux ChromeDriver/chromedriver', chrome_options=co, desired_capabilities=capabilities)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
    desired_capabilities=desired_capabilities)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
    self.start_session(capabilities, browser_profile)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: cannot parse capability: proxy
from invalid argument: Specifying 'socksProxy' requires an integer for 'socksVersion'
  (Driver info: chromedriver=2.45.615279 (12b89733300bd268cff3b78fc76cb8f3a7cc44e5),platform=Linux 4.15.0-43-generic x86_64)

【问题讨论】：

从错误中，听起来您必须为袜子的代理版本传入一个整数，而您的代理列表中缺少该整数。您可能需要将 pxy 列表中的内容与有效 socks 代理的示例进行比较

另见this question关于在袜子上使用硒

@G.Anderson 我之前发现了问题，但我无法实现它来工作......

你能抽出一点时间，给我写一个简短的例子，它会比你想象的更有帮助......

通过简单的谷歌搜索找到：github.com/rootVIII/proxy_web_crawler 它完全符合您的要求，但使用的是 Firefox

【参考方案1】：

我能够重现此错误...该错误在您正在使用的 chrome 驱动程序版本中，即 2.45。我认为这个版本有些不同。

因此，您所要做的就是下载以前的 chrome webdriver 版本。我目前使用的是2.41，可以从here下载。

【讨论】：

是的，我怀疑 Chrome 驱动程序