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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_CHILD_ACCOUNT_SERVICE_H_
#define CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_CHILD_ACCOUNT_SERVICE_H_
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "chrome/browser/supervised_user/child_accounts/family_info_fetcher.h"
#include "chrome/browser/supervised_user/supervised_user_service.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/signin/core/browser/account_tracker_service.h"
#include "net/base/backoff_entry.h"
namespace base {
class FilePath;
}
namespace user_prefs {
class PrefRegistrySyncable;
}
class Profile;
// This class handles detection of child accounts (on sign-in as well as on
// browser restart), and triggers the appropriate behavior (e.g. enable the
// supervised user experience, fetch information about the parent(s)).
class ChildAccountService : public KeyedService,
public FamilyInfoFetcher::Consumer,
public AccountTrackerService::Observer,
public SupervisedUserService::Delegate {
public:
~ChildAccountService() override;
static bool IsChildAccountDetectionEnabled();
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
void Init();
// Sets whether the signed-in account is a child account.
// Public so it can be called on platforms where child account detection
// happens outside of this class (like Android).
void SetIsChildAccount(bool is_child_account);
// Responds whether at least one request for child status was successful.
// And we got answer whether the profile belongs to a child account or not.
bool IsChildAccountStatusKnown();
// KeyedService:
void Shutdown() override;
void AddChildStatusReceivedCallback(const base::Closure& callback);
private:
friend class ChildAccountServiceFactory;
// Use |ChildAccountServiceFactory::GetForProfile(...)| to get an instance of
// this service.
explicit ChildAccountService(Profile* profile);
// SupervisedUserService::Delegate implementation.
bool SetActive(bool active) override;
// AccountTrackerService::Observer implementation.
void OnAccountUpdated(
const AccountTrackerService::AccountInfo& info) override;
// FamilyInfoFetcher::Consumer implementation.
void OnGetFamilyMembersSuccess(
const std::vector<FamilyInfoFetcher::FamilyMember>& members) override;
void OnFailure(FamilyInfoFetcher::ErrorCode error) override;
void StartFetchingFamilyInfo();
void CancelFetchingFamilyInfo();
void ScheduleNextFamilyInfoUpdate(base::TimeDelta delay);
void PropagateChildStatusToUser(bool is_child);
void SetFirstCustodianPrefs(const FamilyInfoFetcher::FamilyMember& custodian);
void SetSecondCustodianPrefs(
const FamilyInfoFetcher::FamilyMember& custodian);
void ClearFirstCustodianPrefs();
void ClearSecondCustodianPrefs();
// Owns us via the KeyedService mechanism.
Profile* profile_;
bool active_;
scoped_ptr<FamilyInfoFetcher> family_fetcher_;
// If fetching the family info fails, retry with exponential backoff.
base::OneShotTimer<ChildAccountService> family_fetch_timer_;
net::BackoffEntry family_fetch_backoff_;
// Callbacks to run when the user status becomes known.
std::vector<base::Closure> status_received_callback_list_;
base::WeakPtrFactory<ChildAccountService> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ChildAccountService);
};
#endif // CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_CHILD_ACCOUNT_SERVICE_H_
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