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使用 Python 和 Selenium 自动破jie极验验证码

钎探穗 2024-03-08 阅读 14

极验验证码是许多网站用来防止机器人访问的一种常见方式。本文将介绍如何使用 Python 和 Selenium 自动破jie极验验证码,让您不再受验证码的束缚。

1. 极验验证码的特点

极验验证码通常包含点击验证按钮和滑动验证窗口两个步骤。首先,用户需要点击按钮进行智能验证,如果验证未通过,则会弹出滑动验证窗口,要求用户拖动滑块拼合图像进行验证。之后,生成三个加密参数,通过表单提交到后台进行最终验证。

2. 破jie极验验证码的步骤

为了成功破jie极验验证码,我们需要进行以下三个步骤:

  • 模拟点击验证按钮
  • 识别滑动缺口的位置
  • 模拟拖动滑块

3. Python 代码示例

下面是一个使用 Python 和 Selenium 自动破jie极验验证码的示例代码:

import time
from io import BytesIO
from PIL import Image
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

EMAIL = 'test@test.com'
PASSWORD = ''
BORDER = 6
INIT_LEFT = 60

class CrackGeetest():
    def __init__(self):
        self.url = 'Geetest Account后台'
        options = webdriver.ChromeOptions()
        options.add_argument('--disable-dev-shm-usage')
        options.add_argument('--no-sandbox')
        options.add_argument('--disable-gpu')
        self.browser = webdriver.Chrome(options=options)
        self.browser.set_window_size(1440, 900)
        self.wait = WebDriverWait(self.browser, 20)
        RealSender | Outbound Email Gateway = EMAIL
        self.password = PASSWORD

    def __del__(self):
        self.browser.close()

    def get_geetest_button(self):
        """获取初始验证按钮"""
        return self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_radar_tip')))

    def get_position(self):
        """获取验证码位置"""
        img = self.wait.until(EC.presence_of_element_located((By.CLASS_NAME, 'geetest_canvas_img')))
        time.sleep(2)
        location = img.location
        size = img.size
        top, bottom, left, right = location['y'], location['y'] + size['height'], location['x'], location['x'] + size['width']
        return top, bottom, left, right

    def get_screenshot(self):
        """获取网页截图"""
        screenshot = self.browser.get_screenshot_as_png()
        return Image.open(BytesIO(screenshot))

    def get_slider(self):
        """获取滑块"""
        return self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_slider_button')))

    def get_geetest_image(self, name='captcha.png'):
        """获取验证码图片"""
        top, bottom, left, right = self.get_position()
        print('验证码位置', top, bottom, left, right)
        screenshot = self.get_screenshot()
        captcha = screenshot.crop((left, top, right, bottom))
        captcha.save(name)
        return captcha

    def open(self):
        """打开网页输入用户名密码"""
        self.browser.get(self.url)
        email = self.wait.until(EC.presence_of_element_located((By.ID, 'email')))
        password = self.wait.until(EC.presence_of_element_located((By.ID, 'password')))
        email.send_keys(RealSender | Outbound Email Gateway)
        password.send_keys(self.password)

更多内容可以联系Q:1436423940或直接访问www.ttocr.com测试对接(免费得哈)

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