How to download a file using the remote selenium webdriver?

Question

I am using a remote selenium webdriver to perform some tests. At some point, however, I need to download a file and check its contents.

I am using the

Answer 1

This works for PHP php-webdriver in 2020 for Chrome:

$downloaddir = "/tmp/";
$host = 'http://ipaddress:4444/wd/hub';
try {
    $options = new ChromeOptions();
    $options->setExperimentalOption("prefs",["safebrowsing.enabled" => "true", "download.default_directory" => $downloaddir]);
    $options->addArguments( array("disable-extensions",'safebrowsing-disable-extension-blacklist','safebrowsing-disable-download-protection') );
    $caps = DesiredCapabilities::chrome();
    $caps->setCapability(ChromeOptions::CAPABILITY, $options);
    $caps->setCapability("unexpectedAlertBehaviour","accept");
    $driver = RemoteWebDriver::create($host, $caps);
    $driver->manage()->window()->setPosition(new WebDriverPoint(500,0));
    $driver->manage()->window()->setSize(new WebDriverDimension(1280,1000));
    $driver->get("https://file-examples.com/index.php/sample-documents-download/sample-rtf-download/");
    sleep(1);
    $driver->findElement(WebDriverBy::xpath("//table//tr//td[contains(., 'rtf')]//ancestor::tr[1]//a"))->click();
    sleep(1);
    $driver->get('chrome://downloads/');
    sleep(1);
    // $inject = "return downloads.Manager.get().items_.filter(e => e.state === 'COMPLETE').map(e => e.filePath || e.file_path); ";
    $inject = "return document.querySelector('downloads-manager').shadowRoot.querySelector('downloads-item').shadowRoot.querySelector('a').innerText;";
    $filename = $driver->executeScript(" $inject" );
    echo "File name: $filename
";
    $driver->executeScript( 
        "var input = window.document.createElement('INPUT'); ".
        "input.setAttribute('type', 'file'); ".
        "input.hidden = true; ".
        "input.onchange = function (e) { e.stopPropagation() }; ".
        "return window.document.documentElement.appendChild(input); " );
    $elem1 = $driver->findElement(WebDriverBy::xpath("//input[@type='file']"));
    $elem1->sendKeys($downloaddir.$filename);
    $result = $driver->executeAsyncScript( 
        "var input = arguments[0], callback = arguments[1]; ".
        "var reader = new FileReader(); ".
        "reader.onload = function (ev) { callback(reader.result) }; ".
        "reader.onerror = function (ex) { callback(ex.message) }; ".
        "reader.readAsDataURL(input.files[0]); ".
        "input.remove(); "
        , [$elem1]);
    $coding = 'base64,';
    $cstart = strpos( $result, 'base64,' );
    if ( $cstart !== false ) 
        $result = base64_decode(substr( $result, $cstart + strlen($coding) ));
    echo "File content: 
$result
";
    $driver->quit();
} catch (Exception $e) {
    echo 'Caught exception: ',  $e->getMessage(), "\n";
}