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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.
#ifndef CONTENT_BROWSER_BTM_BTM_STORAGE_H_
#define CONTENT_BROWSER_BTM_BTM_STORAGE_H_
#include <cstddef>
#include <map>
#include <string>
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/time/time.h"
#include "content/browser/btm/btm_database.h"
#include "content/browser/btm/btm_state.h"
#include "content/browser/btm/btm_utils.h"
#include "content/common/content_export.h"
#include "services/network/public/mojom/network_context.mojom.h"
class GURL;
namespace content {
// Manages the storage of BtmState values.
class CONTENT_EXPORT BtmStorage {
public:
explicit BtmStorage(const std::optional<base::FilePath>& path);
~BtmStorage();
BtmState Read(const GURL& url);
std::optional<PopupsStateValue> ReadPopup(const std::string& first_party_site,
const std::string& tracking_site);
std::vector<PopupWithTime> ReadRecentPopupsWithInteraction(
const base::TimeDelta& lookback);
bool WritePopup(const std::string& first_party_site,
const std::string& tracking_site,
const uint64_t access_id,
const base::Time& popup_time,
bool is_current_interaction,
bool is_authentication_interaction);
void RemoveEvents(base::Time delete_begin,
base::Time delete_end,
network::mojom::ClearDataFilterPtr filter,
const BtmEventRemovalType type);
// Delete all DB rows for |sites|.
void RemoveRows(const std::vector<std::string>& sites);
// Delete all DB rows for |sites| without a protective event. A protective
// event is a user activation or successful WebAuthn assertion.
void RemoveRowsWithoutProtectiveEvent(const std::set<std::string>& sites);
// DIPS Helper Method Impls --------------------------------------------------
// Record that `url` wrote to storage.
void RecordStorage(const GURL& url, base::Time time);
// Record that there was a user activation on `url`.
void RecordUserActivation(const GURL& url, base::Time time);
void RecordWebAuthnAssertion(const GURL& url, base::Time time);
// Record that |url| redirected the user and whether it was |stateful|,
// meaning that |url| wrote to storage while redirecting.
void RecordBounce(const GURL& url, base::Time time, bool stateful);
// Storage querying Methods --------------------------------------------------
// Returns two subsets of sites in `sites` with a protective event recorded.
// A protective event is a user activation or successful WebAuthn assertion.
//
// The first item in the return value contains the sites that had a user
// activation, and the second item contains the sites that had a WebAuthn
// assertion.
std::pair<std::set<std::string>, std::set<std::string>>
FilterSitesWithProtectiveEvent(const std::set<std::string>& sites) const;
// Returns the subset of sites in |sites| WITHOUT a protective event recorded.
// A protective event is a user activation or successful WebAuthn assertion.
std::set<std::string> FilterSitesWithoutProtectiveEvent(
std::set<std::string> sites) const;
// Returns all sites that did a bounce that aren't protected from DIPS.
std::vector<std::string> GetSitesThatBounced(
base::TimeDelta grace_period) const;
// Returns all sites that did a stateful bounce that aren't protected from
// DIPS.
std::vector<std::string> GetSitesThatBouncedWithState(
base::TimeDelta grace_period) const;
// Returns all sites which use storage that aren't protected from DIPS.
std::vector<std::string> GetSitesThatUsedStorage(
base::TimeDelta grace_period) const;
// Returns the list of sites that should have their state cleared by DIPS. How
// these sites are determined is controlled by the value of
// `features::kBtmTriggeringAction`. Passing a non-NULL `grace_period`
// parameter overrides the use of `features::kBtmGracePeriod` when
// evaluating sites to clear.
std::vector<std::string> GetSitesToClear(
std::optional<base::TimeDelta> grace_period) const;
// Returns true if `url`'s site has had user activation since `bound`.
bool DidSiteHaveUserActivationSince(const GURL& url, base::Time bound);
// Returns the timestamp of the last user activation time on `url`, or
// std::nullopt if there has been no user activation on `url`.
std::optional<base::Time> LastUserActivationTime(const GURL& url);
// Returns the timestamp of the last web authentication time on `url`, or
// std::nullopt if there has been no authentication on `url`.
std::optional<base::Time> LastWebAuthnAssertionTime(const GURL& url);
// Returns the timestamp of the most recent of the last user activation or
// authentication on `url`, or std::nullopt if there has been no user
// activation or authentication on `url`.
std::optional<base::Time> LastUserActivationOrAuthnAssertionTime(
const GURL& url);
// Returns time and type of the most recent interaction with the given url.
std::pair<std::optional<base::Time>, BtmInteractionType>
LastInteractionTimeAndType(const GURL& url);
std::optional<base::Time> GetTimerLastFired();
bool SetTimerLastFired(base::Time time);
// Utility Methods -----------------------------------------------------------
static void DeleteDatabaseFiles(base::FilePath path,
base::OnceClosure on_complete);
void SetClockForTesting(base::Clock* clock) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
db_->SetClockForTesting(clock);
}
protected:
void Write(const BtmState& state);
private:
friend class BtmState;
BtmState ReadSite(std::string site);
std::unique_ptr<BtmDatabase> db_ GUARDED_BY_CONTEXT(sequence_checker_);
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<BtmStorage> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_BTM_BTM_STORAGE_H_
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