描述：需要拖动拼合滑块才可以完成验证
准备工作：
使用的Python库是selenium，浏览器为Chrome
识别验证的关键思路：
1.模拟点击验证按钮
2.识别滑动缺口的位置
3.模拟拖动滑块
import time from io import BytesIO from PIL import Image from selenium import webdriver from selenium.webdriver import ActionChains from selenium.webdriver.common.by import By from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC EMAIL = '' # 网站登录邮箱 PASSWORD = '' # 网站登录密码 BORDER = 6 INIT_LEFT = 60 class CrackGeetest(): def __init__(self): self.url = 'https://account.geetest.com/login' # 网站登录地址 self.browser = webdriver.Chrome() self.wait = WebDriverWait(self.browser, 20) self.email = EMAIL self.password = PASSWORD def __del__(self): self.browser.close() def get_geetest_button(self): """ 获取初始验证按钮 :return: """ 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 :return: 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): """ 获取网页截图 :return: 截图对象 """ screenshot = self.browser.get_screenshot_as_png() screenshot = Image.open(BytesIO(screenshot)) return screenshot def get_slider(self): """ 获取滑块 :return: 滑块对象 """ slider = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_slider_button'))) return slider def get_geetest_image(self, name='captcha.png'): """ 获取验证码图片 :return: 图片对象 """ 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 :return: None """ 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(self.email) password.send_keys(self.password) def get_gap(self, image1, image2): """ 获取缺口偏移量 :param image1: 不带缺口图片 :param image2: 带缺口图片 :return: """ left = 60 for i in range(left, image1.size[0]): for j in range(image1.size[1]): if not self.is_pixel_equal(image1, image2, i, j): left = i return left return left def is_pixel_equal(self, image1, image2, x, y): """ 判断两个像素是否相同 :param image1: 图片1 :param image2: 图片2 :param x: 位置x :param y: 位置y :return: 像素是否相同 """ # 取两个图片的像素点 pixel1 = image1.load()[x, y] pixel2 = image2.load()[x, y] threshold = 60 if abs(pixel1[0] - pixel2[0]) < threshold and abs(pixel1[1] - pixel2[1]) < threshold and abs( pixel1[2] - pixel2[2]) < threshold: return True else: return False def get_track(self, distance): """ 根据偏移量获取移动轨迹 :param distance: 偏移量 :return: 移动轨迹 """ # 移动轨迹 track = [] # 当前位移 current = 0 # 减速阈值 mid = distance * 4 / 5 # 计算间隔 t = 0.2 # 初速度 v = 0 while current < distance: if current < mid: # 加速度为正2 a = 2 else: # 加速度为负3 a = -3 # 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^2 move = v0 * t + 1 / 2 * a * t * t # 当前位移 current += move # 加入轨迹 track.append(round(move)) return track def move_to_gap(self, slider, track): """ 拖动滑块到缺口处 :param slider: 滑块 :param track: 轨迹 :return: """ ActionChains(self.browser).click_and_hold(slider).perform() for x in track: ActionChains(self.browser).move_by_offset(xoffset=x, yoffset=0).perform() time.sleep(0.5) ActionChains(self.browser).release().perform() def login(self): """ 登录 :return: None """ submit = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'login-btn'))) submit.click() time.sleep(10) print('登录成功') def crack(self): # 输入用户名密码 self.open() # 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') # 点按呼出缺口 slider = self.get_slider() slider.click() # 获取带缺口的验证码图片 image2 = self.get_geetest_image('captcha2.png') # 获取缺口位置 gap = self.get_gap(image1, image2) print('缺口位置', gap) # 减去缺口位移 gap -= BORDER # 获取移动轨迹 track = self.get_track(gap) print('滑动轨迹', track) # 拖动滑块 self.move_to_gap(slider, track) success = self.wait.until( EC.text_to_be_present_in_element((By.CLASS_NAME, 'geetest_success_radar_tip_content'), '验证成功')) print(success) # 失败后重试 if not success: self.crack() else: self.login() if __name__ == '__main__': crack = CrackGeetest() crack.crack()