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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 COMPONENTS_USER_MANAGER_USER_DIRECTORY_INTEGRITY_MANAGER_H_
#define COMPONENTS_USER_MANAGER_USER_DIRECTORY_INTEGRITY_MANAGER_H_
#include "base/memory/raw_ptr.h"
#include "components/account_id/account_id.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/user_manager/user_manager_export.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
namespace user_manager {
// This class is responsible for writing to local_state before a user is
// created via `MountPerformer::CreateNewUser` and clearing that record from
// local_state when an auth factor is added, via
// `AuthFactorEditor::OnAddCredential`
//
// In that small window between creating a new user and adding keys, we could
// crash, leaving us in an inconsistent state where we have a user home
// directory with no keys. This class helps detect that.
class USER_MANAGER_EXPORT UserDirectoryIntegrityManager {
public:
static void RegisterLocalStatePrefs(PrefRegistrySimple* registry);
explicit UserDirectoryIntegrityManager(PrefService* local_state);
UserDirectoryIntegrityManager(const UserDirectoryIntegrityManager&) = delete;
UserDirectoryIntegrityManager& operator=(
const UserDirectoryIntegrityManager&) = delete;
~UserDirectoryIntegrityManager();
// Mark local state that we are about to create a new user home dir.
void RecordCreatingNewUser(const AccountId&);
// Clears known user prefs after removal of an incomplete user.
void RemoveUser(const AccountId& account_id);
// Remove the mark previously placed in local state, meaning an auth factor
// has been added, or an unusable user has been successfully cleaned up.
// This doesn't clear known user prefs.
void ClearPrefs();
// Check if a user has been incompletely created by looking for the
// presence of a mark associated with the user's email.
absl::optional<AccountId> GetMisconfiguredUserAccountId();
bool IsUserMisconfigured(const AccountId& account_id);
private:
absl::optional<std::string> GetMisconfiguredUserEmail();
const raw_ptr<PrefService, ExperimentalAsh> local_state_;
};
} // namespace user_manager
#endif // COMPONENTS_USER_MANAGER_USER_DIRECTORY_INTEGRITY_MANAGER_H_
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