有没有办法使用Ruby在Centos中使用无头chromedriver下载文件?

时间:2019-04-29 10:23:31

标签: ruby selenium-webdriver google-chrome-headless

我尝试使用无头chrome浏览器下载文件,但该文件似乎未在任何地方下载。我可以看到它实际上是一项安全功能,可以无限制地限制文件下载,但是,在Ruby中是否有解决方法?尝试了以下代码,但没有运气。

download_path = "#{Pathname.pwd}/test-data/downloaded"
options = Selenium::WebDriver::Chrome::Options.new
options.add_argument("--disable-dev-shm-usage");
options.add_argument('--headless') #Declaring the browser to run in headless mode
options.add_preference(
  :download, directory_upgrade: true,
  prompt_for_download: false,
  default_directory: download_path
)
options.add_preference(:browser, set_download_behavior: { behavior: 'allow' })
@driver = Selenium::WebDriver.for :chrome, options: options #Browser object initialization
set_screen_resolution(1400, 900)
$driver = @driver

bridge = @driver.send(:bridge)
path = '/session/:session_id/chromium/send_command'
path[':session_id'] = bridge.session_id
bridge.http.call(:post, path, cmd: 'Page.setDownloadBehavior',
                        params: {
                          behavior: 'allow',
                          downloadPath: download_path
                        })

我希望使用无头chrome浏览器下载文件,但不会发生。

1 个答案:

答案 0 :(得分:0)

单击下载链接后,如果在文件开始下载之前在单独的选项卡中打开,则您也需要将上述脚本应用于新打开的选项卡,因为您仅将会话ID设置为当前选项卡,而不是新打开的选项卡。因此,在尝试下载文件之前,请尝试将此脚本应用于新打开的选项卡。我确定它会起作用。

def download_file(label, download_path)
  ele = Locator.new(:xpath, "//ul[@class='cnt']//div[text()='#{label}']/..//a")
  download_url = get_attribute(ele.get_how, ele.get_what, "href")
  @driver.execute_script("window.open()")
  @driver.switch_to.window(@driver.window_handles.last)
  bridge = @driver.send(:bridge)
  path = '/session/:session_id/chromium/send_command'
  path[':session_id'] = bridge.session_id
  bridge.http.call(:post, path, {
    "cmd" => 'Page.setDownloadBehavior',
    "params" => {
      "behavior" => 'allow',
      "downloadPath" => download_path
    }
  })
  @driver.get(download_url)
  @driver.close
  @driver.switch_to.window(@driver.window_handles.last)
end