How to identify the 32 bit data-sitekey of ReCaptcha V2 to obtain a valid response programmatically using Selenium and Python Requests?

Artem

New member
#1
Pretty much new with captcha and Python requests. The captcha documentation says to copy the value of data-sitekey parameter.

Here was my attempt, using Selenium to open the url and using Python requests to get a response.

Code:
mainurl = 'https://imagetyperz.xyz/automation/recaptcha-v2.html'
driver.get(mainurl)
data_sitekey_class = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CLASS_NAME, "g-recaptcha"))).get_attribute("data-sitekey")
print(data_sitekey_class)
src_css_selector = driver.find_element_by_css_selector("iframe[role='presentation']").get_attribute("src")
print(src_css_selector)
keygoogle = src_css_selector[52:92]
print('Site Key = ', keygoogle)
data_post = {'key': data_sitekey_class, 'method': 'userrecaptcha', 'googlekey': keygoogle, "pageurl": mainurl}
response = requests.post(url = 'https://2captcha.com/in.php', data = data_post )
print(response)
print(response.text)
I am getting 200 as response:
Code:
6LdXeIYUAAAAAFmFKJ6Cl3zo4epRZ0LDdOrYsvRY
https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LdXeIYUAAAAAFmFKJ6Cl3zo4epRZ0LDdOrYsvRY&co=aHR0cHM6Ly9pbWFnZXR5cGVyei54eXo6NDQz&hl=en&v=vJuUWXolyYJx1oqUVmpPuryQ&size=normal&cb=r14cgu7t25ul
Site Key =  6LdXeIYUAAAAAFmFKJ6Cl3zo4epRZ0LDdOrYsvRY
<Response [200]>
ERROR_WRONG_USER_KEY
which is due to:
Code:
ERROR_WRONG_USER_KEY
Further, Error section mentions:
Code:
Error code: ERROR_WRONG_USER_KEY
Description: You've provided key parameter value in incorrect format, it should contain 32 symbols.
Action: Stop sending requests. Check your API key.
Finally, Solving Captchas section mentions:
Get your API key from your account settings page. Each user is given a unique authentication token, we call it API key. It's a 32-characters string that looks like:

1abc234de56fab7c89012d34e56fa7b8

Where as the data-sitekey I am seeing is:

6LdXeIYUAAAAAFmFKJ6Cl3zo4epRZ0LDdOrYsvRY

which is 41 bit.

Where am I going wrong?
 

Alanic

New member
#2
data-sitekey represented through 41-characters string works just fine. The error ERROR_WRONG_USER_KEY occurred as I never had a valid API key ready in the first place. Even with Zero balance in your account, you can successfully obtain a <Response [200]> with text as ERROR_ZERO_BALANCE as follows:
  • Code Block:
    Code:
    from selenium import webdriver
    from selenium.webdriver.support.ui import WebDriverWait
    from selenium.webdriver.common.by import By
    from selenium.webdriver.support import expected_conditions as EC
    import requests
    
    options = webdriver.ChromeOptions()
    options.add_argument("start-maximized")
    options.add_experimental_option("excludeSwitches", ["enable-automation"])
    options.add_experimental_option('useAutomationExtension', False)
    driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
    mainurl = 'https://imagetyperz.xyz/automation/recaptcha-v2.html'
    driver.get(mainurl)
    data_sitekey = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CLASS_NAME, "g-recaptcha"))).get_attribute("data-sitekey")
    print(data_sitekey)
    api_key = '--------------------------------'
    data_post = {'key': api_key, 'method': 'userrecaptcha', 'googlekey': data_sitekey, "pageurl": mainurl}
    response = requests.post(url = 'https://2captcha.com/in.php', data = data_post )
    print(response)
    print(response.text)
  • Console Output:
    Code:
    6LdXeIYUAAAAAFmFKJ6Cl3zo4epRZ0LDdOrYsvRY
    <Response [200]>
    ERROR_ZERO_BALANCE