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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/loader/keep_alive_request_browsertest_util.h"
#include "base/strings/stringprintf.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/test/back_forward_cache_util.h"
#include "content/public/test/browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/controllable_http_response.h"
namespace content {
KeepAliveRequestBrowserTestBase::KeepAliveRequestBrowserTestBase()
: https_test_server_(std::make_unique<net::EmbeddedTestServer>(
net::EmbeddedTestServer::TYPE_HTTPS)) {}
KeepAliveRequestBrowserTestBase::~KeepAliveRequestBrowserTestBase() = default;
void KeepAliveRequestBrowserTestBase::SetUp() {
feature_list_.InitWithFeaturesAndParameters(GetEnabledFeatures(),
GetDisabledFeatures());
ContentBrowserTest::SetUp();
}
const KeepAliveRequestBrowserTestBase::DisabledFeaturesType&
KeepAliveRequestBrowserTestBase::GetDisabledFeatures() {
static const DisabledFeaturesType disabled_features =
GetDefaultDisabledBackForwardCacheFeaturesForTesting();
return disabled_features;
}
void KeepAliveRequestBrowserTestBase::SetUpOnMainThread() {
// Support multiple sites on the test server.
host_resolver()->AddRule("*", "127.0.0.1");
if (loader_service()) {
loaders_observer_ = std::make_unique<KeepAliveURLLoadersTestObserver>(
web_contents()->GetBrowserContext());
}
// Initialize an HTTPS server. Subclass may choose to use HTTPS by calling
// `SetUseHttps()`.
https_test_server_->AddDefaultHandlers(GetTestDataFilePath());
https_test_server_->SetSSLConfig(net::EmbeddedTestServer::CERT_TEST_NAMES);
histogram_tester_ = std::make_unique<base::HistogramTester>();
ContentBrowserTest::SetUpOnMainThread();
}
void KeepAliveRequestBrowserTestBase::TearDownOnMainThread() {
histogram_tester_.reset();
ContentBrowserTest::TearDownOnMainThread();
}
std::vector<std::unique_ptr<net::test_server::ControllableHttpResponse>>
KeepAliveRequestBrowserTestBase::RegisterRequestHandlers(
const std::vector<std::string>& relative_urls) {
std::vector<std::unique_ptr<net::test_server::ControllableHttpResponse>>
handlers;
for (const auto& relative_url : relative_urls) {
handlers.emplace_back(
std::make_unique<net::test_server::ControllableHttpResponse>(
server(), relative_url));
}
return handlers;
}
GURL KeepAliveRequestBrowserTestBase::GetCrossOriginMultipleRedirectsURL(
const GURL& target_url) const {
const auto intermediate_url2 = server()->GetURL(
kSecondaryHost, base::StringPrintf("/no-cors-server-redirect-307?%s",
target_url.spec().c_str()));
const auto intermediate_url1 = server()->GetURL(
kSecondaryHost, base::StringPrintf("/server-redirect-307?%s",
intermediate_url2.spec().c_str()));
return server()->GetURL(kSecondaryHost,
base::StringPrintf("/no-cors-server-redirect-307?%s",
intermediate_url1.spec().c_str()));
}
GURL KeepAliveRequestBrowserTestBase::GetSameOriginMultipleRedirectsURL(
const GURL& target_url) const {
const auto intermediate_url1 = server()->GetURL(
kPrimaryHost, base::StringPrintf("/no-cors-server-redirect-307?%s",
target_url.spec().c_str()));
return server()->GetURL(kPrimaryHost,
base::StringPrintf("/server-redirect-307?%s",
intermediate_url1.spec().c_str()));
}
GURL KeepAliveRequestBrowserTestBase::GetSameAndCrossOriginRedirectsURL(
const GURL& target_url) const {
const auto intermediate_url1 = server()->GetURL(
kSecondaryHost, base::StringPrintf("/no-cors-server-redirect-307?%s",
target_url.spec().c_str()));
return server()->GetURL(kPrimaryHost,
base::StringPrintf("/server-redirect-307?%s",
intermediate_url1.spec().c_str()));
}
GURL KeepAliveRequestBrowserTestBase::GetSameOriginRedirectURL(
const GURL& target_url) const {
return server()->GetURL(
kPrimaryHost,
base::StringPrintf("/server-redirect-307?%s", target_url.spec().c_str()));
}
void KeepAliveRequestBrowserTestBase::ExpectFetchKeepAliveHistogram(
const FetchKeepAliveRequestMetricType& expected_sample,
const ExpectedTotalRequests& total,
const ExpectedStartedRequests& started_count,
const ExpectedSucceededRequests& succeeded_count,
const ExpectedFailedRequests& failed_count,
size_t retried_count) {
// Collect metrics recorded in the renderer processes, if expecting any.
for (size_t retries = 0;
retries < 20 &&
((total.renderer.has_value() && *total.renderer > 0 &&
histogram_tester()
.GetAllSamples("FetchKeepAlive.Requests2.Total.Renderer")
.empty()) ||
(started_count.renderer.has_value() && *started_count.renderer > 0 &&
histogram_tester()
.GetAllSamples("FetchKeepAlive.Requests2.Started.Renderer")
.empty()) ||
(succeeded_count.renderer.has_value() &&
*succeeded_count.renderer > 0 &&
histogram_tester()
.GetAllSamples("FetchKeepAlive.Requests2.Succeeded.Renderer")
.empty()) ||
(failed_count.renderer.has_value() && *failed_count.renderer > 0 &&
histogram_tester()
.GetAllSamples("FetchKeepAlive.Requests2.Failed.Renderer")
.empty()));
retries++) {
FetchHistogramsFromChildProcesses();
}
const int renderer_sample = static_cast<int>(expected_sample);
const int browser_sample =
(expected_sample == FetchKeepAliveRequestMetricType::kBeacon ||
expected_sample == FetchKeepAliveRequestMetricType::kPing ||
expected_sample == FetchKeepAliveRequestMetricType::kAttribution)
? static_cast<int>(FetchKeepAliveRequestMetricType::kPing)
: static_cast<int>(expected_sample);
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Total.Browser", browser_sample, total.browser);
if (total.renderer.has_value()) {
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Total.Renderer", renderer_sample,
*total.renderer);
}
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Started.Browser", browser_sample,
started_count.browser);
if (started_count.renderer.has_value()) {
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Started.Renderer", renderer_sample,
*started_count.renderer);
}
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Succeeded.Browser", browser_sample,
succeeded_count.browser);
if (succeeded_count.renderer.has_value()) {
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Succeeded.Renderer", renderer_sample,
*succeeded_count.renderer);
}
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Failed.Browser", browser_sample,
failed_count.browser);
if (failed_count.renderer.has_value()) {
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Failed.Renderer", renderer_sample,
*failed_count.renderer);
}
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Retried.Browser", browser_sample,
retried_count);
histogram_tester().ExpectUniqueSample(
"FetchKeepAlive.Requests2.Retried.Renderer", renderer_sample, 0);
}
WebContentsImpl* KeepAliveRequestBrowserTestBase::web_contents() const {
return static_cast<WebContentsImpl*>(shell()->web_contents());
}
RenderFrameHostImpl* KeepAliveRequestBrowserTestBase::current_frame_host() {
return web_contents()->GetPrimaryFrameTree().root()->current_frame_host();
}
KeepAliveURLLoaderService* KeepAliveRequestBrowserTestBase::loader_service() {
return static_cast<StoragePartitionImpl*>(
web_contents()->GetBrowserContext()->GetDefaultStoragePartition())
->GetKeepAliveURLLoaderService();
}
void KeepAliveRequestBrowserTestBase::DisableBackForwardCache(
WebContents* web_contents) {
DisableBackForwardCacheForTesting(web_contents,
BackForwardCache::TEST_REQUIRES_NO_CACHING);
}
KeepAliveURLLoadersTestObserver&
KeepAliveRequestBrowserTestBase::loaders_observer() {
return *loaders_observer_;
}
void KeepAliveRequestBrowserTestBase::SetUseHttps() {
use_https_ = true;
}
net::EmbeddedTestServer* KeepAliveRequestBrowserTestBase::server() {
return use_https_ ? https_test_server_.get() : embedded_test_server();
}
const net::EmbeddedTestServer* KeepAliveRequestBrowserTestBase::server() const {
return use_https_ ? https_test_server_.get() : embedded_test_server();
}
const base::HistogramTester&
KeepAliveRequestBrowserTestBase::histogram_tester() {
return *histogram_tester_;
}
// static
std::string KeepAliveRequestBrowserTestBase::GetKeepAliveEndpoint(
std::optional<std::string> id) {
std::string endpoint = kKeepAliveEndpoint;
if (id.has_value()) {
endpoint += "?id=" + *id;
}
return endpoint;
}
// static
std::string KeepAliveRequestBrowserTestBase::EncodeURL(const GURL& url) {
url::RawCanonOutputT<char> buffer;
url::EncodeURIComponent(url.spec(), &buffer);
return std::string(buffer.view());
}
} // namespace content
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