recaptcha_v2_callback_variant1.py

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import os
from twocaptcha import TwoCaptcha

# Description: 
# The value of the `sitekey` parameter is extracted from the page code automaticly. 
# The value of the callback function “verifyDemoRecaptcha()” is specified manually.
# The name of the “verifyDemoRecaptcha()” function may be different when bypassing captcha on another page.
# You need to fugure out the name of the callback function yourself and specify it in the code.

# CONFIGURATION

url = "https://2captcha.com/demo/recaptcha-v2-callback"
apikey = os.getenv('APIKEY_2CAPTCHA')


# LOCATORS

sitekey_locator = "//div[@id='g-recaptcha']"
success_message_locator = "//p[contains(@class,'successMessage')]"


# GETTERS

def get_element(locator):
    """Waits for an element to be clickable and returns it"""
    return WebDriverWait(browser, 30).until(EC.element_to_be_clickable((By.XPATH, locator)))


# ACTIONS

def get_sitekey(locator):
    """
    Extracts the sitekey from the specified element.

    Args:
        locator (str): The XPath locator of the element.
    Returns:
        str: The sitekey value.
    """
    sitekey_element = get_element(locator)
    sitekey = sitekey_element.get_attribute('data-sitekey')
    print(f"Sitekey received: {sitekey}")
    return sitekey

def solver_captcha(apikey, sitekey, url):
    """
    Solves the reCaptcha using the 2Captcha service.

    Args:
        apikey (str): The 2Captcha API key.
        sitekey (str): The sitekey for the captcha.
        url (str): The URL where the captcha is located.
    Returns:
        str: The solved captcha code.
    """
    solver = TwoCaptcha(apikey)
    try:
        result = solver.recaptcha(sitekey=sitekey, url=url)
        print(f"Captcha solved")
        return result['code']
    except Exception as e:
        print(f"An error occurred: {e}")
        return None

def send_token(token):
    # verifyDemoRecaptcha() it is JavaScript callback function on page with captcha.
    # callback function executing for apply token.
    script = f"verifyDemoRecaptcha('{token}');"
    browser.execute_script(script)
    print("The token is sent to the callback function")

def final_message(locator):
    """
    Retrieves and prints the final success message.

    Args:
        locator (str): The XPath locator of the success message.
    """
    message = get_element(locator).text
    print(message)


# MAIN LOGIC

with webdriver.Chrome() as browser:
    # Go to the specified URL
    browser.get(url)
    print('Started')

    # Getting sitekey from the sitekey element
    sitekey = get_sitekey(sitekey_locator)

    # Solving the captcha and receiving a token
    token = solver_captcha(apikey, sitekey, url)

    if token:
        # Sending solved captcha token
        send_token(token)

        # Receiving and displaying a success message
        final_message(success_message_locator)

        browser.implicitly_wait(5)
        print("Finished")
    else:
        print("Failed to solve captcha")