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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string_view>
#include <tuple>
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_attestations/privacy_sandbox_attestations_mixin.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_settings_factory.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/test/base/mixin_based_in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/page_load_metrics/browser/page_load_metrics_test_waiter.h"
#include "components/privacy_sandbox/privacy_sandbox_attestations/privacy_sandbox_attestations.h"
#include "components/privacy_sandbox/privacy_sandbox_features.h"
#include "components/privacy_sandbox/privacy_sandbox_settings.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/back_forward_cache_util.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/test_navigation_observer.h"
#include "net/base/schemeful_site.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/controllable_http_response.h"
#include "net/test/embedded_test_server/default_handlers.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/mojom/use_counter/metrics/web_feature.mojom.h"
#include "url/gurl.h"
// Tests for the Conversion Measurement API that rely on chrome/ layer features.
// UseCounter recording and multiple browser window behavior is not available
// content shell.
class ChromeAttributionBrowserTest : public MixinBasedInProcessBrowserTest {
public:
ChromeAttributionBrowserTest() {
scoped_feature_list_.InitAndEnableFeature(
features::kPrivacySandboxAdsAPIsOverride);
}
void SetUpCommandLine(base::CommandLine* command_line) override {
// Sets up the blink runtime feature for ConversionMeasurement.
command_line->AppendSwitch(
switches::kEnableExperimentalWebPlatformFeatures);
// Debug mode is needed to skip delays and noise which allows to assert
// that reports are received when expected.
command_line->AppendSwitch(switches::kAttributionReportingDebugMode);
command_line->AppendSwitch(switches::kEnableBlinkTestFeatures);
}
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
server_.SetSSLConfig(net::EmbeddedTestServer::CERT_TEST_NAMES);
net::test_server::RegisterDefaultHandlers(&server_);
server_.ServeFilesFromSourceDirectory(
"content/test/data/attribution_reporting");
content::SetupCrossSiteRedirector(&server_);
}
protected:
static constexpr char kReportEndpoint[] =
"https://c.test/.well-known/attribution-reporting/"
"report-event-attribution";
content::WebContents* RegisterSourceWithNavigation() {
content::WebContentsAddedObserver window_observer;
EXPECT_TRUE(ui_test_utils::NavigateToURL(
browser(),
server_.GetURL("a.test", "/page_with_impression_creator.html")));
content::WebContents* web_contents =
browser()->tab_strip_model()->GetActiveWebContents();
GURL register_url =
server_.GetURL("c.test", "/register_source_headers.html");
GURL link_url =
server_.GetURL("d.test", "/page_with_conversion_redirect.html");
// Navigate the page using window.open and set an attribution source.
EXPECT_TRUE(
ExecJs(web_contents, content::JsReplace(R"(
window.open($1, "_blank", "attributionsrc="+$2);)",
link_url, register_url)));
content::WebContents* new_contents = window_observer.GetWebContents();
WaitForLoadStop(new_contents);
return new_contents;
}
void RegisterTrigger(
content::WebContents* contents,
std::string_view registration_js = "createAttributionSrcImg($1)") {
GURL register_trigger_url =
server_.GetURL("c.test", "/register_trigger_headers.html");
EXPECT_TRUE(ExecJs(
contents, content::JsReplace(registration_js, register_trigger_url)));
}
void ExpectUseCounter(const base::HistogramTester& histogram_tester,
blink::mojom::WebFeature feature) {
histogram_tester.ExpectBucketCount("Blink.UseCounter.Features", feature, 1);
}
net::EmbeddedTestServer server_{net::EmbeddedTestServer::TYPE_HTTPS};
privacy_sandbox::PrivacySandboxAttestationsMixin
privacy_sandbox_attestations_mixin_{&mixin_host_};
base::test::ScopedFeatureList scoped_feature_list_;
};
struct ExpectedReportWaiter {
// ControllableHTTPResponses can only wait for relative urls, so only supply
// the path.
ExpectedReportWaiter(GURL report_url, net::EmbeddedTestServer* server)
: expected_url(std::move(report_url)),
response(std::make_unique<net::test_server::ControllableHttpResponse>(
server,
expected_url.path())) {}
GURL expected_url;
std::unique_ptr<net::test_server::ControllableHttpResponse> response;
// Waits for a report to be received matching the report url.
void WaitForRequest() {
if (!HasRequest()) {
response->WaitForRequest();
}
EXPECT_TRUE(response->http_request()->has_content);
}
bool HasRequest() { return response->http_request(); }
};
IN_PROC_BROWSER_TEST_F(ChromeAttributionBrowserTest,
WindowOpenWithOnlyAttributionFeatures_LinkOpenedInTab) {
ASSERT_TRUE(server_.Start());
base::HistogramTester histogram_tester;
content::WebContents* new_contents = RegisterSourceWithNavigation();
// Ensure the window was opened in a new tab. If the window is in a new popup
// the web contents would not belong to the tab strip.
EXPECT_EQ(1,
browser()->tab_strip_model()->GetIndexOfWebContents(new_contents));
EXPECT_EQ(BrowserList::GetInstance()->size(), 1u);
EXPECT_EQ(browser()->tab_strip_model()->count(), 2);
}
IN_PROC_BROWSER_TEST_F(ChromeAttributionBrowserTest,
AttestedSiteCanReceiveAttributionReport) {
PrivacySandboxSettingsFactory::GetForProfile(browser()->profile())
->SetAllPrivacySandboxAllowedForTesting();
privacy_sandbox::PrivacySandboxAttestationsMap map;
map.insert_or_assign(net::SchemefulSite(GURL("https://c.test")),
privacy_sandbox::PrivacySandboxAttestationsGatedAPISet{
privacy_sandbox::PrivacySandboxAttestationsGatedAPI::
kAttributionReporting});
privacy_sandbox::PrivacySandboxAttestations::GetInstance()
->SetAttestationsForTesting(map);
ExpectedReportWaiter expected_report(GURL(kReportEndpoint), &server_);
ASSERT_TRUE(server_.Start());
auto* new_contents = RegisterSourceWithNavigation();
content::WebContentsConsoleObserver console_observer(new_contents);
console_observer.SetPattern(
"Attestation check for Attribution Reporting on * failed.");
RegisterTrigger(new_contents);
expected_report.WaitForRequest();
EXPECT_TRUE(console_observer.messages().empty());
}
IN_PROC_BROWSER_TEST_F(ChromeAttributionBrowserTest,
UnattestedSiteCannotReceiveAttributionReport) {
PrivacySandboxSettingsFactory::GetForProfile(browser()->profile())
->SetAllPrivacySandboxAllowedForTesting();
// We add an empty attestation for the reporting origin. If feature
// `kDefaultAllowPrivacySandboxAttestations` is enabled, the attestation is
// default allowed if the map is absent. Creating a map with the reporting
// endpoint mapping to an empty set will make sure the attestation will fail.
privacy_sandbox::PrivacySandboxAttestations::GetInstance()
->SetAttestationsForTesting(
privacy_sandbox::PrivacySandboxAttestationsMap{
{net::SchemefulSite(GURL(kReportEndpoint)), {}}});
ExpectedReportWaiter expected_report(GURL(kReportEndpoint), &server_);
ASSERT_TRUE(server_.Start());
auto* new_contents = RegisterSourceWithNavigation();
content::WebContentsConsoleObserver console_observer(new_contents);
console_observer.SetPattern(
"Attestation check for Attribution Reporting on * failed.");
RegisterTrigger(new_contents);
// Wait to 2 seconds as reports should be received by then and we want to
// limit the test duration.
base::RunLoop loop_;
base::OneShotTimer timer;
timer.Start(FROM_HERE, base::Seconds(2), loop_.QuitClosure());
loop_.Run();
EXPECT_FALSE(expected_report.HasRequest());
ASSERT_TRUE(console_observer.Wait());
EXPECT_FALSE(console_observer.messages().empty());
}
IN_PROC_BROWSER_TEST_F(ChromeAttributionBrowserTest,
SourceClicked_FeatureRecorded) {
base::HistogramTester histogram_tester;
content::WebContents* web_contents =
browser()->tab_strip_model()->GetActiveWebContents();
page_load_metrics::PageLoadMetricsTestWaiter waiter(web_contents);
waiter.AddWebFeatureExpectation(
blink::mojom::WebFeature::kAttributionReportingAPIAll);
ASSERT_TRUE(server_.Start());
RegisterSourceWithNavigation();
waiter.Wait();
ExpectUseCounter(histogram_tester,
blink::mojom::WebFeature::kAttributionReportingAPIAll);
ExpectUseCounter(histogram_tester,
blink::mojom::WebFeature::kPrivacySandboxAdsAPIs);
}
class ChromeAttributionTriggerUseCounterBrowserTest
: public ChromeAttributionBrowserTest,
public ::testing::WithParamInterface<std::tuple<bool, std::string_view>> {
public:
ChromeAttributionTriggerUseCounterBrowserTest() {
if (std::get<0>(GetParam())) {
scoped_feature_list_.InitAndEnableFeature(
blink::features::kAttributionReportingInBrowserMigration);
} else {
scoped_feature_list_.InitAndDisableFeature(
blink::features::kAttributionReportingInBrowserMigration);
}
}
protected:
void RegisterTrigger(content::WebContents* web_contents) {
ChromeAttributionBrowserTest::RegisterTrigger(web_contents,
std::get<1>(GetParam()));
}
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
INSTANTIATE_TEST_SUITE_P(
,
ChromeAttributionTriggerUseCounterBrowserTest,
::testing::Combine(::testing::Bool(),
::testing::Values("createAttributionSrcImg($1);",
"createTrackingPixel($1);",
R"(fetch($1, {keepalive: true}))")));
IN_PROC_BROWSER_TEST_P(ChromeAttributionTriggerUseCounterBrowserTest,
UseCounterRecorded) {
base::HistogramTester histogram_tester;
content::WebContents* web_contents =
browser()->tab_strip_model()->GetActiveWebContents();
page_load_metrics::PageLoadMetricsTestWaiter waiter(web_contents);
waiter.AddWebFeatureExpectation(
blink::mojom::WebFeature::kAttributionReportingAPIAll);
ASSERT_TRUE(server_.Start());
EXPECT_TRUE(ui_test_utils::NavigateToURL(
browser(),
server_.GetURL("a.test", "/page_with_conversion_redirect.html")));
RegisterTrigger(web_contents);
waiter.Wait();
ExpectUseCounter(histogram_tester,
blink::mojom::WebFeature::kAttributionReportingAPIAll);
ExpectUseCounter(histogram_tester,
blink::mojom::WebFeature::kPrivacySandboxAdsAPIs);
}
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