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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_URL_REQUEST_STORAGE_ACCESS_STATUS_CACHE_H_
#define NET_URL_REQUEST_STORAGE_ACCESS_STATUS_CACHE_H_
#include <optional>
#include <variant>
#include "base/types/optional_util.h"
#include "net/cookies/cookie_util.h"
namespace net {
// Holds the StorageAccessStatus of the request.
// TODO(https://crbug.com/366284840): move this out of //net together with the
// `URLRequest::storage_access_status_`.
class StorageAccessStatusCache {
public:
StorageAccessStatusCache() = default;
explicit StorageAccessStatusCache(
std::optional<net::cookie_util::StorageAccessStatus>
storage_access_status) {
if (storage_access_status.has_value()) {
state_ = storage_access_status.value();
} else {
state_ = FirstParty{};
}
}
friend bool operator==(const StorageAccessStatusCache& status,
cookie_util::StorageAccessStatus status_enum) {
return status.GetStatusForThirdPartyContext() == status_enum;
}
// Returns the cached storage access status as an optional. Nullopt if the
// state is `FirstParty`.
std::optional<net::cookie_util::StorageAccessStatus>
GetStatusForThirdPartyContext() const {
CHECK(IsSet());
return base::OptionalFromPtr(
std::get_if<net::cookie_util::StorageAccessStatus>(&state_));
}
bool IsSet() const { return !std::holds_alternative<Unset>(state_); }
void Reset() { state_ = Unset{}; }
private:
// `state_` variant used when the storage access status is not set.
struct Unset {};
// `state_` variant used when the storage access status is not applicable
// because the request is first-party.
struct FirstParty {};
std::variant<Unset, FirstParty, net::cookie_util::StorageAccessStatus> state_;
};
} // namespace net
#endif // NET_URL_REQUEST_STORAGE_ACCESS_STATUS_CACHE_H_
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