How to download an image using Selenium (any version)?

Question

I was wondering, how can one use selenium/webdriver to download an image for a page. Assuming that the user session is required to download the image hence having pure URL i

Answer 1

If you need to test that image is available and exists, you may do like this:

protected boolean isResourceAvailableByUrl(String resourceUrl) {
    // backup current url, to come back to it in future
    String currentUrl = webDriver.getCurrentUrl();
    try {
        // try to get image by url
        webDriver.get(resourceUrl);
        // if "resource not found" message was not appeared - image exists
        return webDriver.findElements(RESOURCE_NOT_FOUND).isEmpty();
    } finally {
        // back to page
        webDriver.get(currentUrl);
    }
}

But you need to be sure, that going through currentUrl will really turn you back on page before execution of this method. In my case it was so. If not - you may try to use:

webDriver.navigate().back()

And also, unfortunately, as it seems, there is no any chance to analyze response status code. That's why you need to find any specific web element on NOT_FOUND page and check that it was appeared and decide then - that image doesn't exist.

It is just workaround, cause I found no any official way to solve it.

NOTE: This solution is helpful in case when you use authorized session to get resource, and can't just download it by ImageIO or strictly by HttpClient.