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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.
#ifndef CHROME_BROWSER_ANDROID_PERSISTED_TAB_DATA_SENSITIVITY_PERSISTED_TAB_DATA_ANDROID_H_
#define CHROME_BROWSER_ANDROID_PERSISTED_TAB_DATA_SENSITIVITY_PERSISTED_TAB_DATA_ANDROID_H_
#include <vector>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/android/persisted_tab_data/persisted_tab_data_android.h"
#include "components/page_content_annotations/core/page_content_annotations_service.h"
// Client of PersistedTabDataAndroid
class SensitivityPersistedTabDataAndroid
: public PersistedTabDataAndroid,
public page_content_annotations::PageContentAnnotationsService::
PageContentAnnotationsObserver {
public:
explicit SensitivityPersistedTabDataAndroid(TabAndroid* tab_android);
void RegisterPCAService(
page_content_annotations::PageContentAnnotationsService*
page_content_annotations_service);
~SensitivityPersistedTabDataAndroid() override;
// Used to acquire SensitivityPersistedTabDataAndroid for a given TabAndroid
// Integrates with PersistedTabDataAndroid::From
static void From(TabAndroid* tab_android, FromCallback from_callback);
// TODO (crbug.com/468347707) : Required for TabAndroidUserData, this provides
// a unique key for the PersistedTabDataAndroid subclass. Without this
// explicit definition, PersistedTabDataAndroid::UserDataKey() would be used,
// which would lead to key collisions for all subclasses.
static const void* UserDataKey();
void set_sensitivity_score(float sensitivity_score) {
// Setting the cutoff value to 0.5 for binary classification of data
// sensitivity. This value ensures that we neither overclassify nor
// underclassify sensitive data
is_sensitive_ = sensitivity_score < 0.5;
sensitivity_score_ = sensitivity_score;
Save();
}
bool is_sensitive() const { return is_sensitive_; }
float sensitivity_score() const { return sensitivity_score_; }
// page_content_annotations::PageContentAnnotationsService::PageContentAnnotationsObserver
void OnPageContentAnnotated(
const page_content_annotations::HistoryVisit& visit,
const page_content_annotations::PageContentAnnotationsResult& result)
override;
protected:
std::unique_ptr<const std::vector<uint8_t>> Serialize() override;
void Deserialize(const std::vector<uint8_t>& data) override;
private:
friend class TabAndroidUserData<SensitivityPersistedTabDataAndroid>;
friend class SensitivityPersistedTabDataAndroidBrowserTest;
// TODO(crbug.com/40273829) Consider making is_sensitive_ absl::option<bool>
bool is_sensitive_ = false;
float sensitivity_score_ = -1.0;
raw_ptr<TabAndroid> tab_;
// Not owned. Register manually through RegisterPCAService
raw_ptr<page_content_annotations::PageContentAnnotationsService>
page_content_annotations_service_ = nullptr;
// Determine if SensitivityPersistedTabDataAndroid exists for |tab_android|.
// true/false result returned in |exists_callback|.
static void ExistsForTesting(TabAndroid* tab_android,
base::OnceCallback<void(bool)> exists_callback);
TAB_ANDROID_USER_DATA_KEY_DECL();
};
#endif // CHROME_BROWSER_ANDROID_PERSISTED_TAB_DATA_SENSITIVITY_PERSISTED_TAB_DATA_ANDROID_H_
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