Selenium + chromeDr

发布时间:2019-10-15 09:05:16编辑:auto阅读(279)

    在使用 selenium + chromeDriver + python3 截图时,遇上 Flash 无法加载,导致了截图 Falsh 是空白区。

    环境要求:selenium chromeDriver Python3

    问题

    chrome 无头浏览器无法自动加载 Flash

    解决办法

    参考了 allow-flash-content-in-chrome-69-running-via-chromedriver 的回答,直接修改 Chrome 的设置 chrome://settings/content/siteDetails?site= 里面的 Flash 设置,修改为 Allow

    #!/usr/bin/env python3
    # -*- coding: utf-8 -*-
    
    from selenium import webdriver
    from selenium.webdriver.common.by import By
    from selenium.webdriver.support.ui import Select
    
    class chromeDriver():
    
        def __init__(self, driver = ''):
            # 设置窗口大小
            self.window_width  = 1680
            self.window_height = 948
            # 设置 chromedriver 位置
            self.executable_path = '/usr/local/bin/chromedriver'
            # 设置 Flash 的路径
            self.flash_path     = '/Users/cindy/Library/Application Support/Google/Chrome/PepperFlash/32.0.0.171/PepperFlashPlayer.plugin'
            # 获取 driver
            if driver: self.driver = driver
            else:
                self.driver = self.get_chrome_driver()
            
    
        def get_chrome_driver(self):
            # 头部
            user_agent         = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36'
            # 创建参数对象
            options         = webdriver.ChromeOptions()
    
            prefs = {
                # 开启图片
                "profile.managed_default_content_settings.images":1,
                # 关闭 Notification
                "profile.default_content_setting_values.notifications": 2,
            }
    
            # 设置 Flash 的路径
            options.add_argument('--ppapi-flash-version=32.0.0.171')
            options.add_argument('--ppapi-flash-path=' + self.flash_path)
            options.add_argument('binary_location=/Applications/Google Chrome.app/Contents/MacOS/Google Chrome')
            # 指定屏幕分辨率
            options.add_argument('window-size=' + str(self.window_width) + 'x' + str(self.window_height) + '\'')
            # 最大化窗口
            options.add_argument('--start-maximized')
            # 规避bug
            options.add_argument('--disable-gpu')
            # 禁用弹出拦截
            options.add_argument('--disable-popup-blocking')
            # 隐藏自动软件
            options.add_argument('disable-infobars')
            # 设置中文
            options.add_argument('lang=zh_CN.UTF-8')
            #忽略 Chrome 浏览器证书错误报警提示
            options.add_argument('--ignore-certificate-errors')
            # 更换头部
            options.add_argument('user-agent=' + user_agent)
            options.add_argument('no-default-browser-check')
            # 关闭特征变量
            options.add_experimental_option('excludeSwitches', ['enable-automation'])
            options.add_experimental_option('prefs', prefs)
            # 创建 Chrome 对象
            driver     = webdriver.Chrome(options = options, executable_path = self.executable_path)
    
            return driver
    
        def get(self, web_url):
            if not web_url: return False
            return     self.driver.get(web_url)
    
        def add_flash_site(self, web_url):
            if not web_url: return False
            self.get("chrome://settings/content/siteDetails?site=" + web_url)
            root1 = self.driver.find_element(By.TAG_NAME, "settings-ui")
            shadow_root1 = self.expand_root_element(root1)
            root2 = shadow_root1.find_element(By.ID, "container")
            root3 = root2.find_element(By.ID, "main")
            shadow_root3 = self.expand_root_element(root3)
            shadow_root3 = self.expand_root_element(root3)
            root4 = shadow_root3.find_element(By.CLASS_NAME, "showing-subpage")
            shadow_root4 = self.expand_root_element(root4)
            root5 = shadow_root4.find_element(By.ID, "advancedPage")
            root6 = root5.find_element(By.TAG_NAME, "settings-privacy-page")
            shadow_root6 = self.expand_root_element(root6)
            root7 = shadow_root6.find_element(By.ID, "pages")
            root8 = root7.find_element(By.TAG_NAME, "settings-subpage")
            root9 = root8.find_element(By.TAG_NAME, "site-details")
            shadow_root9 = self.expand_root_element(root9)
            root10 = shadow_root9.find_element(By.ID, "plugins")
            shadow_root10 = self.expand_root_element(root10)
            root11 = shadow_root10.find_element(By.ID, "permission")
            Select(root11).select_by_value("allow")
    
        def expand_root_element(self, element):
            return self.driver.execute_script("return arguments[0].shadowRoot", element)
    
    
        def get_flash_url(self, web_url):
            if not web_url: return False
            self.add_flash_site(web_url)
            self.get(web_url)
    
        def quit_driver(self):
            self.driver.quit()
    
    
    
    driver = chromeDriver()
    url = 'http://your.website/'
    driver.get_flash_url(url)
    

    最后

    不能使用无界面模式,不能设置 handless 参数 options.add_argument('--headless')。否则无法直接修改 Chrome 的设置。

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