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|
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/privacy_sandbox/privacy_sandbox_attestations/privacy_sandbox_attestations.h"
#include <string>
#include <string_view>
#include "base/feature_list.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/with_feature_override.h"
#include "base/version.h"
#include "components/privacy_sandbox/privacy_sandbox_attestations/privacy_sandbox_attestations_histograms.h"
#include "components/privacy_sandbox/privacy_sandbox_attestations/proto/privacy_sandbox_attestations.pb.h"
#include "components/privacy_sandbox/privacy_sandbox_attestations/scoped_privacy_sandbox_attestations.h"
#include "components/privacy_sandbox/privacy_sandbox_features.h"
#include "components/privacy_sandbox/privacy_sandbox_test_util.h"
#include "components/startup_metric_utils/browser/startup_metric_utils.h"
#include "content/public/test/browser_task_environment.h"
#include "net/base/schemeful_site.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace privacy_sandbox {
using Status =
::privacy_sandbox_test_util::PrivacySandboxSettingsTestPeer::Status;
class PrivacySandboxAttestationsTestBase : public testing::Test {
public:
PrivacySandboxAttestationsTestBase()
: scoped_attestations_(PrivacySandboxAttestations::CreateForTesting()) {}
protected:
const base::HistogramTester& histogram_tester() const {
return histogram_tester_;
}
void SetUp() override { ASSERT_TRUE(scoped_temp_dir_.CreateUniqueTempDir()); }
void WriteAttestationsFileAndWaitForLoading(base::Version version,
std::string_view content) {
base::ScopedTempDir component_install_dir;
CHECK(
component_install_dir.CreateUniqueTempDirUnderPath(GetTestDirectory()));
// Note the actual attestations file name required by the Privacy Sandbox
// Attestations component is specified by
// `kPrivacySandboxAttestationsFileName`. Here because this is a unit test
// so it can be any file name.
base::FilePath attestations_file_path =
component_install_dir.GetPath().Append(
FILE_PATH_LITERAL("attestations"));
CHECK(base::WriteFile(attestations_file_path, content));
base::RunLoop run_loop;
PrivacySandboxAttestations::GetInstance()
->SetLoadAttestationsDoneCallbackForTesting(run_loop.QuitClosure());
PrivacySandboxAttestations::GetInstance()->LoadAttestations(
version, attestations_file_path, /*is_pre_installed=*/false);
run_loop.Run();
}
void WriteAttestationsFileAndPauseDuringParsing(base::Version version,
std::string_view content) {
base::ScopedTempDir component_install_dir;
CHECK(
component_install_dir.CreateUniqueTempDirUnderPath(GetTestDirectory()));
// Note the actual attestations file name required by the Privacy Sandbox
// Attestations component is specified by
// `kPrivacySandboxAttestationsFileName`. Here because this is a unit test
// so it can be any file name.
base::FilePath attestations_file_path =
component_install_dir.GetPath().Append(
FILE_PATH_LITERAL("attestations"));
CHECK(base::WriteFile(attestations_file_path, content));
base::RunLoop run_loop;
PrivacySandboxAttestations::GetInstance()
->SetLoadAttestationsParsingStartedCallbackForTesting(
run_loop.QuitClosure());
PrivacySandboxAttestations::GetInstance()->LoadAttestations(
version, attestations_file_path, /*is_pre_installed=*/false);
run_loop.Run();
}
const base::FilePath& GetTestDirectory() const {
return scoped_temp_dir_.GetPath();
}
private:
content::BrowserTaskEnvironment browser_task_environment_;
ScopedPrivacySandboxAttestations scoped_attestations_;
base::ScopedTempDir scoped_temp_dir_;
base::HistogramTester histogram_tester_;
};
TEST_F(PrivacySandboxAttestationsTestBase, AddOverride) {
net::SchemefulSite site(GURL("https://example.com"));
ASSERT_FALSE(PrivacySandboxAttestations::GetInstance()->IsOverridden(site));
PrivacySandboxAttestations::GetInstance()->AddOverride(site);
EXPECT_TRUE(PrivacySandboxAttestations::GetInstance()->IsOverridden(site));
}
class PrivacySandboxAttestationsFeatureEnabledTest
: public base::test::WithFeatureOverride,
public PrivacySandboxAttestationsTestBase {
public:
PrivacySandboxAttestationsFeatureEnabledTest()
: base::test::WithFeatureOverride(
kDefaultAllowPrivacySandboxAttestations) {
scoped_feature_list_.InitAndEnableFeature(
kEnforcePrivacySandboxAttestations);
}
void SetUp() override {
PrivacySandboxAttestationsTestBase::SetUp();
// Reset the singleton recorder to avoid interference across test cases.
startup_metric_utils::GetBrowser().ResetSessionForTesting();
}
bool IsAttestationsDefaultAllowed() const { return IsParamFeatureEnabled(); }
// Return the final expected status of `IsSiteAttested` given the `status`
// which represents the actual status of the attestation.
// Note that this is the expected status when default behavior is not
// specified by the call site.
Status GetExpectedStatus(Status status) {
// If the attestations map is absent and feature
// `kDefaultAllowPrivacySandboxAttestations` is on, the expected status is
// default allow when the given status implies the map is absent.
if (IsAttestationsDefaultAllowed() &&
(status == Status::kAttestationsFileNotPresent ||
status == Status::kAttestationsDownloadedNotYetLoaded ||
status == Status::kAttestationsFileCorrupt ||
status == Status::kAttestationsFileNotYetChecked)) {
return Status::kAllowed;
}
return status;
}
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
AttestationsBehaviorWithMapBeingAbsent) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
EXPECT_EQ(attestation_status,
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileSource, 0);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
DefaultDenyIfAttestationsComponentNotYetReady) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
EXPECT_EQ(attestation_status,
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest, AttestedIfOverridden) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
ASSERT_EQ(attestation_status,
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
PrivacySandboxAttestations::GetInstance()->AddOverride(site);
EXPECT_TRUE(PrivacySandboxAttestations::GetInstance()->IsOverridden(site));
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
EnrolledWithoutAttestations) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
ASSERT_EQ(attestation_status,
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
PrivacySandboxAttestations::GetInstance()->SetAttestationsForTesting(
PrivacySandboxAttestationsMap{{site, {}}});
Status new_attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
EXPECT_EQ(new_attestation_status,
GetExpectedStatus(Status::kAttestationFailed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA,
Status::kAttestationFailed, 1);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest, EnrolledAndAttested) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
ASSERT_EQ(attestation_status,
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
PrivacySandboxAttestations::GetInstance()->SetAttestationsForTesting(
PrivacySandboxAttestationsMap{
{site, PrivacySandboxAttestationsGatedAPISet{
PrivacySandboxAttestationsGatedAPI::kTopics}}});
Status new_attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
EXPECT_EQ(new_attestation_status, GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
1);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
NonExistentAttestationsFile) {
base::RunLoop run_loop;
PrivacySandboxAttestations::GetInstance()
->SetLoadAttestationsDoneCallbackForTesting(run_loop.QuitClosure());
// Call the parsing function with a non-existent file.
PrivacySandboxAttestations::GetInstance()->LoadAttestations(
base::Version("0.0.1"), base::FilePath(), /*is_pre_installed=*/false);
run_loop.Run();
// The parsing should fail.
EXPECT_FALSE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kFileNotExist, 1);
}
// The parsing progress may end up being
// `PrivacySandboxAttestations::Progress::kFinished` but there is no in-memory
// attestations map. Verify that the second attempt to parse should not crash.
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
TryParseNonExistentAttestationsFileTwice) {
base::RunLoop first_attempt;
PrivacySandboxAttestations::GetInstance()
->SetLoadAttestationsDoneCallbackForTesting(first_attempt.QuitClosure());
// Call the parsing function with a non-existent file.
PrivacySandboxAttestations::GetInstance()->LoadAttestations(
base::Version("0.0.1"), base::FilePath(), /*is_pre_installed=*/false);
first_attempt.Run();
// The parsing should fail.
EXPECT_FALSE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kFileNotExist, 1);
base::RunLoop second_attempt;
PrivacySandboxAttestations::GetInstance()
->SetLoadAttestationsDoneCallbackForTesting(second_attempt.QuitClosure());
PrivacySandboxAttestations::GetInstance()->LoadAttestations(
base::Version("0.0.1"), base::FilePath(), /*is_pre_installed=*/false);
second_attempt.Run();
// The parsing should fail again, without crashes.
EXPECT_FALSE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kFileNotExist, 2);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
InvalidAttestationsFileIsNotLoaded) {
// Write an invalid proto file, and try to parse it.
WriteAttestationsFileAndWaitForLoading(base::Version("0.0.1"),
"invalid proto");
// The parsing should fail.
EXPECT_FALSE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kCannotParseFile, 1);
// Attempts to check attestation status should return that the file is
// corrupt.
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kTopics);
EXPECT_EQ(attestation_status,
GetExpectedStatus(Status::kAttestationsFileCorrupt));
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest, LoadAttestationsFile) {
PrivacySandboxAttestationsProto proto;
ASSERT_TRUE(proto.site_attestations_size() == 0);
std::string site = "https://example.com";
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
// Add attestation for the site.
PrivacySandboxAttestationsProto::PrivacySandboxAttestedAPIsProto
site_attestation;
site_attestation.add_attested_apis(TOPICS);
(*proto.mutable_site_attestations())[site] = site_attestation;
std::string serialized_proto;
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndWaitForLoading(base::Version("0.0.1"),
serialized_proto);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kSuccess, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 1);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 1);
// The site should be attested for the API.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("0.0.1"));
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
1);
histogram_tester().ExpectTotalCount(kAttestationsFileSource, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileSource,
FileSource::kDownloaded, 1);
// For API not in the attestations list, the result should be
// `kAttestationFailed`.
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kProtectedAudience),
GetExpectedStatus(Status::kAttestationFailed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 3);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA,
Status::kAttestationFailed, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileSource, 2);
histogram_tester().ExpectBucketCount(kAttestationsFileSource,
FileSource::kDownloaded, 2);
// Add attestation for Protected Audience.
site_attestation.add_attested_apis(PROTECTED_AUDIENCE);
(*proto.mutable_site_attestations())[site] = site_attestation;
// Parse the new version.
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndWaitForLoading(base::Version("0.0.2"),
serialized_proto);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kSuccess, 2);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 2);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 2);
// Now the site should be attested for both APIs.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("0.0.2"));
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 4);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
2);
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kProtectedAudience),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 5);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
3);
histogram_tester().ExpectTotalCount(kAttestationsFileSource, 4);
histogram_tester().ExpectBucketCount(kAttestationsFileSource,
FileSource::kDownloaded, 4);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
AttestationFirstCheckTimeHistogram) {
histogram_tester().ExpectTotalCount(kAttestationFirstCheckTimeUMA, 0);
std::string site = "https://example.com";
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kProtectedAudience),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectTotalCount(kAttestationFirstCheckTimeUMA, 1);
// The first attestation check histogram should be only recorded once for each
// Chrome session.
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectTotalCount(kAttestationFirstCheckTimeUMA, 1);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
LoadAttestationsFilePauseDuringParsing) {
PrivacySandboxAttestationsProto proto;
ASSERT_TRUE(proto.site_attestations_size() == 0);
std::string site = "https://example.com";
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
// Add attestation for the site.
PrivacySandboxAttestationsProto::PrivacySandboxAttestedAPIsProto
site_attestation;
site_attestation.add_attested_apis(TOPICS);
(*proto.mutable_site_attestations())[site] = site_attestation;
std::string serialized_proto;
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndPauseDuringParsing(base::Version("0.0.1"),
serialized_proto);
// The attestation check should return an error indicating that parsing is in
// progress.
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsDownloadedNotYetLoaded));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsDownloadedNotYetLoaded, 1);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
OlderVersionAttestationsFileIsNotLoaded) {
PrivacySandboxAttestationsProto proto;
ASSERT_TRUE(proto.site_attestations_size() == 0);
std::string site = "https://example.com";
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
// Add attestation for the site.
PrivacySandboxAttestationsProto::PrivacySandboxAttestedAPIsProto
site_attestation;
site_attestation.add_attested_apis(TOPICS);
(*proto.mutable_site_attestations())[site] = site_attestation;
std::string serialized_proto;
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndWaitForLoading(base::Version("1.2.3"),
serialized_proto);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kSuccess, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 1);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 1);
// The site should be attested for the API.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("1.2.3"));
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
1);
// Clear the proto attestations.
proto.clear_site_attestations();
// Load the attestations file, which has an older version.
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndWaitForLoading(base::Version("0.0.1"),
serialized_proto);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kNotNewerVersion, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 1);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 1);
// The attestations map should still be the old one.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("1.2.3"));
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 3);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
2);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
NewerVersionAttestationsFileIsLoaded) {
PrivacySandboxAttestationsProto proto;
ASSERT_TRUE(proto.site_attestations_size() == 0);
std::string site = "https://example.com";
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
// Add attestation for the site.
PrivacySandboxAttestationsProto::PrivacySandboxAttestedAPIsProto
site_attestation;
site_attestation.add_attested_apis(TOPICS);
(*proto.mutable_site_attestations())[site] = site_attestation;
std::string serialized_proto;
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndWaitForLoading(base::Version("0.0.1"),
serialized_proto);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kSuccess, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 1);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 1);
// The site should be attested for the API.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("0.0.1"));
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
1);
// Clear the attestations.
proto.clear_site_attestations();
// Load the attestations file, which has a newer version.
proto.SerializeToString(&serialized_proto);
WriteAttestationsFileAndWaitForLoading(base::Version("0.0.2"),
serialized_proto);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kSuccess, 2);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 2);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 2);
// The newer version should override the existing attestations map.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("0.0.2"));
// The site should not be attested for the API according to the new
// attestations map.
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationFailed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 3);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA,
Status::kAttestationFailed, 1);
}
// Test that the parsing works as expected when there are combining characters
// in the file path to the attestation list. There are exhaustive tests on this
// in `base/files/file_path_unittest.cc`.
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
CombiningCharacterFilePath) {
PrivacySandboxAttestationsProto proto;
ASSERT_TRUE(proto.site_attestations_size() == 0);
std::string site = "https://example.com";
ASSERT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAttestationsFileNotYetChecked));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
// Add attestation for the site.
PrivacySandboxAttestationsProto::PrivacySandboxAttestedAPIsProto
site_attestation;
site_attestation.add_attested_apis(TOPICS);
(*proto.mutable_site_attestations())[site] = site_attestation;
std::string serialized_proto;
proto.SerializeToString(&serialized_proto);
base::ScopedTempDir scoped_temp_dir;
CHECK(scoped_temp_dir.CreateUniqueTempDirUnderPath(GetTestDirectory()));
// Create an install directory that contains combining characters.
base::FilePath component_install_dir = scoped_temp_dir.GetPath().Append(
FILE_PATH_LITERAL("k\u0301u\u032Do\u0304\u0301n"));
CHECK(base::CreateDirectory(component_install_dir));
base::FilePath attestations_file_path =
component_install_dir.Append(FILE_PATH_LITERAL("attestations"));
CHECK(base::WriteFile(attestations_file_path, serialized_proto));
base::RunLoop run_loop;
PrivacySandboxAttestations::GetInstance()
->SetLoadAttestationsDoneCallbackForTesting(run_loop.QuitClosure());
PrivacySandboxAttestations::GetInstance()->LoadAttestations(
base::Version("2023.1.23.0"), attestations_file_path,
/*is_pre_installed=*/false);
run_loop.Run();
histogram_tester().ExpectTotalCount(kAttestationsFileParsingStatusUMA, 1);
histogram_tester().ExpectBucketCount(kAttestationsFileParsingStatusUMA,
ParsingStatus::kSuccess, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileParsingTimeUMA, 1);
histogram_tester().ExpectTotalCount(kAttestationsMapMemoryUsageUMA, 1);
// The site should be attested for the API.
ASSERT_TRUE(PrivacySandboxAttestations::GetInstance()
->GetVersionForTesting()
.IsValid());
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->GetVersionForTesting(),
base::Version("2023.1.23.0"));
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kTopics),
GetExpectedStatus(Status::kAllowed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 2);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA, Status::kAllowed,
1);
// For API not in the attestations list, the result should be
// `kAttestationFailed`.
EXPECT_EQ(PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
net::SchemefulSite(GURL(site)),
PrivacySandboxAttestationsGatedAPI::kProtectedAudience),
GetExpectedStatus(Status::kAttestationFailed));
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 3);
histogram_tester().ExpectBucketCount(kAttestationStatusUMA,
Status::kAttestationFailed, 1);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
AttestationsDefaultBehaviorAllowWithMapBeingAbsent) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kAttributionReporting,
AttestationsDefaultBehavior::kAllow);
EXPECT_EQ(attestation_status, Status::kAllowed);
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileSource, 0);
}
TEST_P(PrivacySandboxAttestationsFeatureEnabledTest,
AttestationsDefaultBehaviorDenyWithMapBeingAbsent) {
net::SchemefulSite site(GURL("https://example.com"));
Status attestation_status =
PrivacySandboxAttestations::GetInstance()->IsSiteAttested(
site, PrivacySandboxAttestationsGatedAPI::kAttributionReporting,
AttestationsDefaultBehavior::kDeny);
EXPECT_EQ(attestation_status, Status::kAttestationsFileNotYetChecked);
histogram_tester().ExpectTotalCount(kAttestationStatusUMA, 1);
histogram_tester().ExpectBucketCount(
kAttestationStatusUMA, Status::kAttestationsFileNotYetChecked, 1);
histogram_tester().ExpectTotalCount(kAttestationsFileSource, 0);
}
INSTANTIATE_FEATURE_OVERRIDE_TEST_SUITE(
PrivacySandboxAttestationsFeatureEnabledTest);
} // namespace privacy_sandbox
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