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我已经创建了一个用于网络抓取的脚本，并且我正在使用 2Captcha 来解决验证码。2Captcha 有一个 Python 库，但我创建了自己的函数来生成验证码 ID 和验证码令牌代码。

我的验证码模块有 3 个函数：get_captcha_id()、get_captcha_response() 和 apply_token()

一切都很好，我能够解决几十个验证码，直到最终我得到 2 个以下错误：ERROR_WRONG_CAPTCHA_ID

发生这种情况时，脚本首先出现错误 ERROR_CAPTCHA_UNSOLVABLE，然后循环返回并生成一个全新的验证码 ID。也许我应该保留相同的 ID 并只生成一个新令牌？

我只是想知道是否有更好的方法来做到这一点......

这是在我的主脚本上启动 2Captcha 的代码：

    captcha_solved = 0
    
    #Solves recpacha via 2Captcha API
    while captcha_solved == 0:
        captcha_id = captcha.get_captcha_id(browser.current_url)
        if captcha_id != 0 or captcha_id != None:
            print("Captcha ID is: "+str(captcha_id))
            cap_res = captcha.get_captcha_response(captcha_id)
            if cap_res == "ERROR_CAPTCHA_UNSOLVABLE" or cap_res == "ERROR_TOKEN_EXPIRED" or cap_res == "ERROR_WRONG_CAPTCHA_ID":
                print("Captcha failed... Restarting captcha")
                browser.refresh()
                sleep(1)
                continue
            else:
                print("Capcha Token: "+cap_res)
                captcha.apply_token(browser, cap_res)
                solver.report(captcha_id, True)
                captcha_solved = captcha_solved + 1
                break

一旦这个while循环完成，主脚本就会启动。在大约 2 打验证码之后，我会收到这个错误：

Traceback (most recent call last):
  File "C:\Users\Anthony\eclipse-workspace\Indiana SOS Biz Search\main.py", line 191, in <module>
    cap_res = captcha.get_captcha_response(captcha_id)
  File "C:\Users\Anthony\eclipse-workspace\Indiana SOS Biz Search\captcha.py", line 83, in get_captcha_response
    solver.report(cap_id, False)
  File "C:\Users\Anthony\AppData\Local\Programs\Python\Python39\lib\site-packages\twocaptcha\solver.py", line 496, in report
    self.api_client.res(key=self.API_KEY, action=rep, id=id_)
  File "C:\Users\Anthony\AppData\Local\Programs\Python\Python39\lib\site-packages\twocaptcha\api.py", line 113, in res
    raise ApiException(resp)
twocaptcha.api.ApiException: ERROR_WRONG_CAPTCHA_ID

我以为我添加了足够多的故障保护来重新生成验证码令牌这是我的 captcha.py 文件代码：

from twocaptcha import TwoCaptcha
from random import randint
from time import sleep

from urllib.request import urlopen, Request
import re
from bs4 import BeautifulSoup
from twocaptcha.solver import ValidationException
from twocaptcha.api import NetworkException, ApiException
from selenium.common.exceptions import TimeoutException

#solver = TwoCaptcha('API_KEY')

site_key = "###"

api_key = "###"

config = {
            'server': '2captcha.com',
            'apiKey': api_key,
            'callback': 'https://your.site.com/',
            'defaultTimeout': 120,
            'recaptchaTimeout': 600,
            'pollingInterval': 10,
}

proxy={
    'type': 'HTTP',
    'uri': '###'
}

user_agent = '###'

solver = TwoCaptcha(**config)

print("2Captcha Balance: $"+str(solver.balance()))

def get_captcha_id(captcha_url):
    try:
        result = solver.recaptcha(sitekey=site_key, url=captcha_url, proxy=proxy)
        #print(result)
        split_string = str(result).split(":", 1)
        substring = split_string[0]
        #print(substring)
        
        if (substring == "{'captchaId'"):
            strip_beginning = re.sub("{'captchaId': '", "", str(result))
            captcha_id = re.sub("'}", "", strip_beginning)
            return captcha_id
        else:
            print("could not find captcha ID")
            return 0
    except ValidationException as e:
        # invalid parameters passed
      print(e)
      return e
    except NetworkException as e:
      # network error occurred
      print(e)
      return e
    except ApiException as e:
      # api respond with error
      print(e)
      return e
    except TimeoutException as e:
      # captcha is not solved so far
      print(e)
      return e
  
def get_captcha_response(cap_id):
    capcha_ready = 0
    
    response_url = "https://2captcha.com/res.php?key="+api_key+"&action=get&id="+cap_id
    
    while capcha_ready == 0:        
        PageRequest = Request(response_url,data=None,headers={'User-Agent': user_agent})
        PageResponse = urlopen(PageRequest)
        PageHtml = PageResponse.read()
        PageSoup = BeautifulSoup(PageHtml, 'html.parser')
        SoupText = str(PageSoup)
    
        if SoupText == "ERROR_CAPTCHA_UNSOLVABLE" or SoupText == "ERROR_WRONG_CAPTCHA_ID" or SoupText == "ERROR_TOKEN_EXPIRED":
            solver.report(cap_id, False)
            return SoupText
        elif str(PageSoup) == "CAPCHA_NOT_READY":
            print("Waiting for capcha response...")
            rand = randint(12,18)
            print("sleeping for "+str(rand)+" seconds")
            sleep(rand)
        else:
            split_string = str(PageSoup).split("|", 1)
            if len(split_string) > 0:
                substring = split_string[1]
                return substring
                capcha_ready = capcha_ready + 1            
    #print(PageSoup)
    return PageSoup

def apply_token(browser, token):
    print("Applying token to browser...")
    browser.execute_script('document.getElementById("g-recaptcha-response").innerHTML = "{}";'.format(token))
    print("Token applied")

感谢您对此的帮助，我真的很感激！

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