• Selenium 验证


    1. Selenium 滑块验证:例一

    from selenium import webdriver
    
    import time,requests
    
    from selenium.webdriver.common.action_chains import ActionChains
    
    driver = webdriver.Chrome()
    driver.get('http://tingshen.court.gov.cn/live/17804767')
    time.sleep(3)
    
    
    source = driver.find_element_by_css_selector('#nc_1_n1z')
    time.sleep(2)
    box = driver.find_element_by_css_selector('#nc_1__scale_text > span')
    time.sleep(2)
    
    ActionChains(driver).drag_and_drop_by_offset(source, box.size['width'], 0).perform()
    time.sleep(2)
    
    driver.refresh()
    代码实现一
    def get_trachs(distance):
        v = 0
        t = 0.3
        tracks = []
        current = 0
        mid = distance*4/5
        while current < distance:
            if current < mid:
                a = 2
            else:
                a = -3
    
            v0 = v
            s = v0*t + 0.5*a*(t**2)
            current += s
            tracks.append(round(s))
            v = v0 + a*t
        return tracks
    
    from selenium import webdriver
    
    import time
    
    from selenium.webdriver.common.action_chains import ActionChains
    # 实例话浏览器
    driver = webdriver.Chrome()
    driver.get('http://tingshen.court.gov.cn/live/17804767')
    time.sleep(2)
    element = driver.find_element_by_css_selector('#nc_1_n1z')
    ActionChains(driver).click_and_hold(on_element=element).perform()
    # 定义拖拽的位置
    ActionChains(driver).move_to_element_with_offset(to_element=element, xoffset=260, yoffset=0).perform()
    tracks = get_trachs(40)
    for track in tracks:
        ActionChains(driver).move_by_offset(xoffset=track, yoffset=0).perform()
    time.sleep(1)
    # 鼠标释放
    ActionChains(driver).release().perform()
    代码实现二
    # 导包
    # 浏览器
    from selenium import webdriver
    # 无头浏览器
    from selenium.webdriver.chrome.options import Options
    # 规避检测
    from selenium.webdriver import ChromeOptions
    
    
    # 代码
    #实现无可视化界面操作
    chrome_options = Options()
    chrome_options.add_argument('--headless') #浏览器不提供可视化页面. linux下如果系统不支持可视化不加这条会启动失败
    chrome_options.add_argument('--disable-gpu') #谷歌文档提到需要加上这个属性来规避bug
    #针对UA请求头的操作,防止因为没有添加请求头导致的访问被栏截了
    chrome_options.add_argument('User-Agent=Mozilla/5.0 (Windows NT 6.1; Win64; x64) >AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Edg/87.0.664.57')
    chrome_options.add_argument('--no-sandbox')
    chrome_options.add_argument('--hide-scrollbars') #隐藏滚动条, 应对一些特殊页面
    chrome_options.add_argument('blink-settings=imagesEnabled=false') #不加载图片, 提升速度
    
    
    #实现规避操作
    chrome_opt = webdriver.ChromeOptions()
    hrome_opt.add_experimental_option('excludeSwitches', ['enable-automation'])
    chrome_opt.add_experimental_option('useAutomationExtension', False)
    chrome_opt.add_argument(
        'user-agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36"')
    chrome_opt.add_argument("--disable-blink-features=AutomationControlled")
    driver = webdriver.Chrome(options=chrome_opt, executable_path=r'chromedriver.exe')
    driver.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
        "source": """
         Object.defineProperty(navigator, 'webdriver', {
          get: () => undefined
        })
      """
    })
    代码实现三 规避浏览器检测
        def get_track(self, distance):  # distance为传入的总距离
            # 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2
                    a = 2
                else:
                    # 加速度为-2
                    a = -3
                v0 = v
                # 当前速度
                v = v0 + a * t
                # 移动距离
                move = v0 * t + 1 / 2 * a * t * t
                # 当前位移
                current += move
                # 加入轨迹
                track.append(round(move))
            return track
    代码实现四 滑动轨迹加速度

    2. Selenium 滑动验证带缺口:

    def get_trachs(distance):
        v = 0
        t = 0.3
        tracks = []
        current = 0
        mid = distance*4/5
        while current < distance:
            if current < mid:
                a = 2
            else:
                a = -3
    
            v0 = v
            s = v0*t + 0.5*a*(t**2)
            current += s
            tracks.append(round(s))
            v = v0 + a*t
        return tracks
    
    
    from selenium import webdriver
    
    import time
    
    from selenium.webdriver.common.action_chains import ActionChains
    # 实例化浏览器
    driver = webdriver.Chrome()
    driver.get('https://www.douban.com/')
    
    driver.switch_to.frame(0)
    
    # 元素定位
    driver.find_element_by_xpath('/html/body/div[1]/div[1]/ul[1]/li[2]').click()
    driver.find_element_by_xpath('//*[@id="username"]').send_keys('123456789')
    driver.find_element_by_xpath('//*[@id="password"]').send_keys('123456789')
    driver.find_element_by_xpath('/html/body/div[1]/div[2]/div[1]/div[5]/a').click()
    
    time.sleep(2)
    id = driver.find_element_by_xpath('//*[@id="tcaptcha_iframe"]')
    driver.switch_to.frame(id)
    
    # 定义拖拽按钮
    element = driver.find_element_by_xpath('//*[@id="tcaptcha_drag_thumb"]')
    ActionChains(driver).click_and_hold(on_element=element).perform()
    # 定义拖拽的位置
    ActionChains(driver).move_to_element_with_offset(to_element=element, xoffset=140, yoffset=0).perform()
    
    tracks = get_trachs(65)
    for track in tracks:
        ActionChains(driver).move_by_offset(xoffset=track, yoffset=0).perform()
    time.sleep(1)
    # 鼠标释放
    ActionChains(driver).release().perform()
    Code

     3. Selenium  截图

    from PIL import Image
    from selenium import webdriver
    
    driver = webdriver.Chrome()
    driver.get("http://user.quar.com/passport/login.jsp")
    driver.maximize_window()
    
    driver.find_element_by_link_text('密码登录').click()
    driver.save_screenshot("10.png")
    img = driver.find_element_by_id('vcodeImg')
    
    left = img.location['x']
    top = img.location['y']
    right = left + img.size['width']
    bottom = top + img.size['height']
    
    pil_image = Image.open("10.png")
    target_image = pil_image.corp((left, top, right, bottom))
    target_image.save("randCode.png")
    driver.close()
    Code

     4. 多窗口

    # 多窗口
    
    from selenium import webdriver
    
    driver = webdriver.Chrome()
    driver.implicitly_wait(10)
    driver.get('https://www.baidu.com')
    
    print(driver.current_window_handle)
    
    driver.find_element_by_link_text('新闻').click()
    
    print(driver.current_window_handle)
    
    handles = driver.window_handles
    print(handles)
    
    driver.switch_to.window(handles[1])
    
    driver.find_element_by_link_text('军事').click()
    Code
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  • 原文地址:https://www.cnblogs.com/xinzaiyuan/p/14496417.html
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