滑块验证码识别

喜欢ヅ旅行 2022-12-08 05:49 469阅读 0赞

本文是使用极验滑动验证码的官网做的实验，没有账号的可以先注册一个账号 ，地址 ：https://account.geetest.com/login

1.  安装环境
    
    1.  chromedriver 下载地址 可以根据自己chrome版本和系统自行下载  
        地址：http://chromedriver.storage.googleapis.com/index.html  
        查看chrome版本 和下载chromedriver页面：
        
        ![1548a32bb9549cdaa64dd627ae2093b4.png][]
        
        ![517ba2b58ab66fa6b99b8a0205632cf6.png][]
        
          
        将解压好的文件放入/usr/local/bin目录中，由于mac的很多目录都是隐藏的，所以我们按快捷键command+shift+g，在弹出的窗口输入/usr/local/bin，  
        就可以打开这个目录，接着将解压好的驱动放入此目录即可。  
        安装 selenium
    2.      pip install selenium
    3.  安装 PIL 图片处理  
        当我们输入pip insall PIL时候会发现错误，没有这个模块。因为这个模块安装是以前版本,在命令行输入 pip install pillow
        
            pip install pillow
    4.  测试  
        打开小黑窗
        
            from selenium import webdriver
            from PIL import Image
            browser = webdriver.Chrome()
            browser.get("http://www.baidu.com")
        
        　得到以下结果证明环境没问题 接下来开始写代码咯
        
        ![fea99fe5d02083cd58bcda29eed083d2.png][]

写代码：

from selenium import webdriver
    from selenium.webdriver.common.by import By
    from selenium.webdriver.support import expected_conditions as EC
    from selenium.webdriver.support.wait import WebDriverWait
    import time
    from io import BytesIO
    from PIL import Image
    from selenium.webdriver import ActionChains
    from selenium.common.exceptions import TimeoutException
    import random
    
    EMAIL = '@qq.com'
    PASSWORD = '密码'
    
    
    class CrackGeetest():
        """
        初始化
        """
    
        def __init__(self):
            self.url = 'https://account.geetest.com/login'
            self.browser = webdriver.Chrome()
            self.wait = WebDriverWait(self.browser, 5)
            self.email = EMAIL
            self.password = PASSWORD
    
        def __del__(self):
            self.browser.close()
    
        def open(self):
            """
            输入用户及密码
            """
            self.browser.get(self.url)
            email_xpath = '//*[@id="base"]/div[2]/div/div[2]/div[3]/div/form/div[1]/div/div/input'
            email = self.wait.until(EC.presence_of_element_located((By.XPATH, email_xpath)))
            password_xpath = '//*[@id="base"]/div[2]/div/div[2]/div[3]/div/form/div[2]/div/div[1]/input'
            password = self.wait.until(EC.presence_of_element_located((By.XPATH, password_xpath)))
            email.send_keys(self.email)
            password.send_keys(self.password)
    
        def get_geetest_button(self):
            """
    
            获取初始验证按钮
            返回按钮对象
            """
            button = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_radar_tip')))
            return button
    
        def get_position(self):
            """
    
            获取验证码位置-为截取验证码准备
            返回验证码位置元组
            """
            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):
            """[summary]
    
            获取网页截图
            """
            screenshot = self.browser.get_screenshot_as_png()
            screenshot = Image.open(BytesIO(screenshot))
            return screenshot
    
        def get_geetest_image(self, name='captcha.png'):
            """
            获取验证码图片
            返回图片对象
            """
            top, bottom, left, right = self.get_position()
            screenshot = self.get_screenshot()
            # 通过验证码图片的位置从网页截图上截取验证码
            captcha = screenshot.crop((left, top, right, bottom))
            captcha.save(name)
            return captcha
    
        def get_slider(self):
            """
            获取滑块对象
            """
            slider = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_slider_button')))
            return slider
    
        def get_track(self, distance):
            """
            根据偏移量获取移动轨迹
    
            Arguments:
                distance {[type]} -- 偏移量
            """
            # 移动轨迹
            track = []
            # 当前位移
            current = 0
            # 减速阀值
            mid = distance * 7 / 10
            # 计算间隔
            t = 0.15
            # 初速度
            v = 0
    
            while current < distance:
                if current < mid:
                    # 加速度为正
                    a = 2.1
                else:
                    # 加速度为负
                    a = -4.8
                # 初速度v0
                v0 = v
                # 当前速度 v = v0 + at
                v = v0 + a * t
                # 移动距离 x = v0t + 1/2*a*t*t
                move = v0 * t + 1 / 2 * a * t * t
                # 当前位移
                current += move
                # 加入轨迹
                track.append(round(move, 2))
            return track
    
        def move_to_gap(self, slider, tracks):
            """[summary]
    
            拖动滑块到缺口处
            动作： 点击且不释放鼠标-拖拽图片到缺口-释放鼠标
    
            Arguments:
                slider {[type]} -- 滑块
                tracks {[type]} -- 轨迹
            """
            # 点击并按住滑块
            ActionChains(self.browser).click_and_hold(slider).perform()
            # 移动
            for x in tracks:
                ActionChains(self.browser).move_by_offset(xoffset=x, yoffset=0).perform()
            time.sleep(0.1)
            # 释放滑块
            ActionChains(self.browser).release().perform()
    
        def login(self):
            """[summary]
    
            登录
            """
            submit = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'login-btn')))
            submit.click()
            time.sleep(1)
            print('登录成功')
    
        def is_try_again(self):
            """[summary]
    
            判断是否能够点击重试
            """
            button_text = self.browser.find_element_by_class_name('geetest_radar_tip_content')
            text = button_text.text
            if text == '尝试过多':
                button = self.browser.find_element_by_class_name('geetest_reset_tip_content')
                button.click()
    
        def is_success(self):
            """[summary]
    
            判断是否成功
            """
            button_text2 = self.browser.find_element_by_class_name('geetest_success_radar_tip_content')
            text2 = button_text2.text
            if text2 == '验证成功':
                return 1
            return 0
    
        def for_move(self, x_temp):
            """[summary]
    
            循环拖动
            """
            flag = 0
            for i in range(0, 7):
    
                gap = random.randint(16, 20) * i + x_temp
                if gap < 40:
                    continue
                print('预估计缺口位置: ', gap)
                self.is_try_again()
                slider = self.get_slider()
                track = self.get_track(gap)
                print('滑动轨迹: ', track)
                # 拖动滑块
                self.move_to_gap(slider, track)
                time.sleep(3)
                if self.is_success():
                    flag = 1
                    break
            return flag
    
        def crack(self):
            """[summary]
    
            验证
            """
            try:
                # 输入用户和密码
                self.open()
                time.sleep(2)
                # 点击验证按钮
                button = self.get_geetest_button()
                button.click()
                # 获取验证码图片
                image1 = self.get_geetest_image('captcha1.png')
                flag = 0
                while 1:
                    temp = random.randint(0, 2)  # 将轨迹划分为2, 则有1/2的几率
                    if temp == 0:
                        print('预估左1/2: ')
                        flag = self.for_move(30)
                    else:
                        print('预估右1/2: ')
                        flag = self.for_move(120)
                    if flag == 1:
                        break
    
            except TimeoutException as e:
                self.crack()
            # 成功,登录
            self.login()
            time.sleep(10)
    
    
    if __name__ == "__main__":
        crack = CrackGeetest()
        crack.crack()

[1548a32bb9549cdaa64dd627ae2093b4.png]: /images/20221123/24433f8f6c604ae3b7bf387a19a2a8f4.png
[517ba2b58ab66fa6b99b8a0205632cf6.png]: /images/20221123/d6a4e23cd9c14674b7272ca1ff5c25c4.png
[fea99fe5d02083cd58bcda29eed083d2.png]: /images/20221123/d41cb6ad63a1426a9fd1e8ae9395062d.png