铬/铬无头文件下载不工作？

Question

我下载了最新版本的铬，以测试无头功能。

当我运行时(作为root用户，因为我仍然在测试事物)：

./chrome --no-sandbox http://cp7.awardspace.com/speed-test/awardspace-data1mb.zip

在GUI终端中，它打开Chromium并下载文件。

如果我试图无头运行它，我输入以下内容：

./chrome --no-sandbox --headless http://cp7.awardspace.com/speed-test/awardspace-data1mb.zip

终端输出一些信息，没有窗口打开，但也:我没有下载任何地方的文件。

我一直在互联网和讨论小组寻找更多的信息，但什么也找不到。

是文件下载不工作在无头模式下铬？

Answer 1

这是无头实现中的一个报告错误：https://bugs.chromium.org/p/chromium/issues/detail?id=696481

Answer 2

使用ChromeDriverService和后置会话/{sessionId}/ Use /send_命令

JSON担任职务：

{
    "cmd": "Page.setDownloadBehavior",
    "params": {
        "behavior": "allow",
        "downloadPath": "C:\\Download\\Path"
    }
}

C#解决方案

添加对System.Net.Http的引用，并使用NuGet安装Newtonsoft.JSON。

public static IWebDriver Driver { get; private set; }

public void SetDriver()
{
    var chromeOptions = new ChromeOptions();
    chromeOptions.AddArguments("--headless", "--window-size=1920,1080");

    var driverService = ChromeDriverService.CreateDefaultService();
    Driver = new ChromeDriver(driverService, chromeOptions);

    Task.Run(() => AllowHeadlessDownload(driverService));
}

static async Task AllowHeadlessDownload(ChromeDriverService driverService )
{
    var jsonContent = new JObject(
        new JProperty("cmd", "Page.setDownloadBehavior"),
        new JProperty("params",
        new JObject(new JObject(
            new JProperty("behavior", "allow"),
            new JProperty("downloadPath", @"C:\Download\Path")))));
    var content = new StringContent(jsonContent.ToString(), Encoding.UTF8, "application/json");
    var sessionIdProperty = typeof(ChromeDriver).GetProperty("SessionId");
    var sessionId = sessionIdProperty.GetValue(Driver, null) as SessionId;

    using (var client = new HttpClient())
    {
        client.BaseAddress = driverService.ServiceUrl;
        var result = await client.PostAsync("session/" + sessionId.ToString() + "/chromium/send_command", content);
        var resultContent = await result.Content.ReadAsStringAsync();
    }
}

Answer 3

在Java中使用以下代码：

System.setProperty("webdriver.chrome.driver", "/usr/local/bin/chromedriver");
         ChromeOptions options = new ChromeOptions();
                options.addArguments("--test-type");
                options.addArguments("--headless");
                options.addArguments("--disable-extensions"); //to disable browser extension popup

                ChromeDriverService driverService = ChromeDriverService.createDefaultService();
                ChromeDriver driver = new ChromeDriver(driverService, options);

                Map<String, Object> commandParams = new HashMap<>();
                commandParams.put("cmd", "Page.setDownloadBehavior");
                Map<String, String> params = new HashMap<>();
                params.put("behavior", "allow");
                params.put("downloadPath", "//home//vaibhav//Desktop");
                commandParams.put("params", params);
                ObjectMapper objectMapper = new ObjectMapper();
                HttpClient httpClient = HttpClientBuilder.create().build();
                String command = objectMapper.writeValueAsString(commandParams);
                String u = driverService.getUrl().toString() + "/session/" + driver.getSessionId() + "/chromium/send_command";
                HttpPost request = new HttpPost(u);
                request.addHeader("content-type", "application/json");
                request.setEntity(new StringEntity(command));
                httpClient.execute(request);
        driver.get("http://www.seleniumhq.org/download/");
        driver.findElement(By.linkText("32 bit Windows IE")).click();