Chrome DevTools Network Features
Network features using CDP.
While Selenium 4 provides direct access to the Chrome DevTools Protocol, these methods will eventually be removed when WebDriver BiDi implemented.
Basic authentication
Some applications make use of browser authentication to secure pages. It used to be common to handle them in the URL, but browsers stopped supporting this. With this code you can insert the credentials into the header when necessary
Predicate<URI> uriPredicate = uri -> uri.toString().contains("herokuapp.com");
Supplier<Credentials> authentication = UsernameAndPassword.of("admin", "admin");
((HasAuthentication) driver).register(uriPredicate, authentication); credentials = base64.b64encode("admin:admin".encode()).decode()
auth = {'authorization': 'Basic ' + credentials}
await connection.session.execute(connection.devtools.network.set_extra_http_headers(Headers(auth))) var handler = new NetworkAuthenticationHandler()
{
UriMatcher = uri => uri.AbsoluteUri.Contains("herokuapp"),
Credentials = new PasswordCredentials("admin", "admin")
};
var networkInterceptor = driver.Manage().Network;
networkInterceptor.AddAuthenticationHandler(handler);
await networkInterceptor.StartMonitoring(); driver.register(username: 'admin',
password: 'admin',
uri: /herokuapp/)Network Interception
Both requests and responses can be recorded or transformed.
Response information
try (NetworkInterceptor ignored =
new NetworkInterceptor(
driver,
(Filter)
next ->
req -> {
HttpResponse res = next.execute(req);
contentType.add(res.getHeader("Content-Type"));
return res;
})) { INetwork networkInterceptor = driver.Manage().Network;
networkInterceptor.NetworkResponseReceived += (_, e) =>
{
contentType.Add(e.ResponseHeaders["content-type"]);
};
await networkInterceptor.StartMonitoring(); driver.intercept do |request, &continue|
continue.call(request) do |response|
content_type << response.headers['content-type']
end
endResponse transformation
try (NetworkInterceptor ignored =
new NetworkInterceptor(
driver,
Route.matching(req -> true)
.to(
() ->
req ->
new HttpResponse()
.setStatus(200)
.addHeader("Content-Type", MediaType.HTML_UTF_8.toString())
.setContent(Contents.utf8String("Creamy, delicious cheese!"))))) { var handler = new NetworkResponseHandler()
{
ResponseMatcher = _ => true,
ResponseTransformer = _ => new HttpResponseData
{
StatusCode = 200,
Body = "Creamy, delicious cheese!"
}
};
INetwork networkInterceptor = driver.Manage().Network;
networkInterceptor.AddResponseHandler(handler);
await networkInterceptor.StartMonitoring(); driver.intercept do |request, &continue|
continue.call(request) do |response|
response.body = 'Creamy, delicious cheese!' if request.url.include?('blank')
end
endRequest interception
try (NetworkInterceptor ignored =
new NetworkInterceptor(
driver,
(Filter)
next ->
req -> {
if (req.getUri().contains("one.js")) {
req =
new HttpRequest(
HttpMethod.GET, req.getUri().replace("one.js", "two.js"));
}
completed.set(true);
return next.execute(req);
})) { var handler = new NetworkRequestHandler
{
RequestMatcher = request => request.Url.Contains("one.js"),
RequestTransformer = request =>
{
request.Url = request.Url.Replace("one", "two");
return request;
}
};
INetwork networkInterceptor = driver.Manage().Network;
networkInterceptor.AddRequestHandler(handler);
await networkInterceptor.StartMonitoring(); driver.intercept do |request, &continue|
uri = URI(request.url)
request.url = uri.to_s.gsub('one', 'two') if uri.path&.end_with?('one.js')
continue.call(request)
endPerformance Metrics
devTools.send(Performance.enable(Optional.empty()));
List<Metric> metricList = devTools.send(Performance.getMetrics()); async with driver.bidi_connection() as connection:
await connection.session.execute(connection.devtools.performance.enable())
metric_list = await connection.session.execute(connection.devtools.performance.get_metrics()) await domains.Performance.Enable(new OpenQA.Selenium.DevTools.V126.Performance.EnableCommandSettings());
var metricsResponse =
await session.SendCommand<GetMetricsCommandSettings, GetMetricsCommandResponse>(
new GetMetricsCommandSettings()
); driver.devtools.performance.enable
metric_list = driver.devtools.performance.get_metrics.dig('result', 'metrics')Setting Cookies
devTools.send(
Network.setCookie(
"cheese",
"gouda",
Optional.empty(),
Optional.of("www.selenium.dev"),
Optional.empty(),
Optional.of(true),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Optional.empty())); async with driver.bidi_connection() as connection:
execution = connection.devtools.network.set_cookie(
name="cheese",
value="gouda",
domain="www.selenium.dev",
secure=True
)
await connection.session.execute(execution) var cookieCommandSettings = new SetCookieCommandSettings
{
Name = "cheese",
Value = "gouda",
Domain = "www.selenium.dev",
Secure = true
};
await domains.Network.SetCookie(cookieCommandSettings); driver.devtools.network.set_cookie(name: 'cheese',
value: 'gouda',
domain: 'www.selenium.dev',
secure: true)Waiting for Downloads
devTools.send(
Browser.setDownloadBehavior(
Browser.SetDownloadBehaviorBehavior.ALLOWANDNAME,
Optional.empty(),
Optional.of(""),
Optional.of(true))); driver.devtools.browser.set_download_behavior(behavior: 'allow',
download_path: '',
events_enabled: true)
driver.devtools.browser.on(:download_progress) do |progress|
@completed = progress['state'] == 'completed'
end
