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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/browsing_topics/browsing_topics_service_factory.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "chrome/browser/history/history_service_factory.h"
#include "chrome/browser/optimization_guide/optimization_guide_keyed_service.h"
#include "chrome/browser/optimization_guide/optimization_guide_keyed_service_factory.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_settings_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "components/browsing_topics/annotator.h"
#include "components/browsing_topics/browsing_topics_service.h"
#include "components/browsing_topics/browsing_topics_service_impl.h"
#include "components/content_settings/browser/page_specific_content_settings.h"
#include "components/history/core/browser/history_service.h"
#include "components/keyed_service/core/service_access_type.h"
#include "components/optimization_guide/core/optimization_guide_model_provider.h"
#include "components/optimization_guide/machine_learning_tflite_buildflags.h"
#include "components/optimization_guide/proto/page_topics_model_metadata.pb.h"
#include "components/privacy_sandbox/privacy_sandbox_settings.h"
#include "content/public/browser/browsing_topics_site_data_manager.h"
#include "content/public/browser/storage_partition.h"
#include "services/network/public/cpp/features.h"
#include "third_party/blink/public/common/features.h"
#if BUILDFLAG(BUILD_WITH_TFLITE_LIB)
#include "components/browsing_topics/annotator_impl.h"
#else
#include "components/browsing_topics/annotator_noop.h"
#endif
namespace browsing_topics {
// static
BrowsingTopicsService* BrowsingTopicsServiceFactory::GetForProfile(
Profile* profile) {
return static_cast<BrowsingTopicsService*>(
GetInstance()->GetServiceForBrowserContext(profile, /*create=*/true));
}
// static
BrowsingTopicsServiceFactory* BrowsingTopicsServiceFactory::GetInstance() {
static base::NoDestructor<BrowsingTopicsServiceFactory> factory;
return factory.get();
}
BrowsingTopicsServiceFactory::BrowsingTopicsServiceFactory()
: ProfileKeyedServiceFactory(
"BrowsingTopicsService",
ProfileSelections::Builder()
.WithRegular(ProfileSelection::kOriginalOnly)
// TODO(crbug.com/40257657): Check if this service is needed in
// Guest mode.
.WithGuest(ProfileSelection::kOriginalOnly)
// TODO(crbug.com/41488885): Check if this service is needed for
// Ash Internals.
.WithAshInternals(ProfileSelection::kOriginalOnly)
.Build()) {
DependsOn(PrivacySandboxSettingsFactory::GetInstance());
DependsOn(HistoryServiceFactory::GetInstance());
DependsOn(OptimizationGuideKeyedServiceFactory::GetInstance());
}
BrowsingTopicsServiceFactory::~BrowsingTopicsServiceFactory() = default;
std::unique_ptr<KeyedService>
BrowsingTopicsServiceFactory::BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const {
if (!base::FeatureList::IsEnabled(network::features::kBrowsingTopics)) {
return nullptr;
}
Profile* profile = Profile::FromBrowserContext(context);
privacy_sandbox::PrivacySandboxSettings* privacy_sandbox_settings =
PrivacySandboxSettingsFactory::GetForProfile(profile);
if (!privacy_sandbox_settings)
return nullptr;
history::HistoryService* history_service =
HistoryServiceFactory::GetForProfile(profile,
ServiceAccessType::IMPLICIT_ACCESS);
if (!history_service)
return nullptr;
content::BrowsingTopicsSiteDataManager* site_data_manager =
context->GetDefaultStoragePartition()->GetBrowsingTopicsSiteDataManager();
if (!site_data_manager)
return nullptr;
OptimizationGuideKeyedService* opt_guide_service =
OptimizationGuideKeyedServiceFactory::GetForProfile(profile);
if (!opt_guide_service) {
return nullptr;
}
optimization_guide::proto::Any any_metadata;
any_metadata.set_type_url(
"type.googleapis.com/"
"google.internal.chrome.optimizationguide.v1.PageTopicsModelMetadata");
optimization_guide::proto::PageTopicsModelMetadata model_metadata;
// The current version the client supports for the topics model. This
// should be incremented any time there is a client code change to how the
// topics model works that needs to be side-channeled to the server.
model_metadata.set_version(2);
model_metadata.set_taxonomy_version(
blink::features::kBrowsingTopicsTaxonomyVersion.Get());
model_metadata.SerializeToString(any_metadata.mutable_value());
#if BUILDFLAG(BUILD_WITH_TFLITE_LIB)
std::unique_ptr<Annotator> annotator = std::make_unique<AnnotatorImpl>(
/*model_provider=*/opt_guide_service,
base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::TaskPriority::BEST_EFFORT}),
any_metadata);
#else
std::unique_ptr<Annotator> annotator = std::make_unique<AnnotatorNoOp>();
#endif
return std::make_unique<BrowsingTopicsServiceImpl>(
profile->GetPath(), privacy_sandbox_settings, history_service,
site_data_manager, std::move(annotator),
base::BindRepeating(
content_settings::PageSpecificContentSettings::TopicAccessed));
}
bool BrowsingTopicsServiceFactory::ServiceIsCreatedWithBrowserContext() const {
// The `BrowsingTopicsService` needs to be created with Profile, as it needs
// to schedule the topics calculation right away, and it might also need to
// handle some data deletion on startup.
return true;
}
} // namespace browsing_topics
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