108 lines
3.6 KiB
C#
108 lines
3.6 KiB
C#
|
// (c) Copyright Ascensio System SIA 2010-2022
|
|||
|
//
|
|||
|
// This program is a free software product.
|
|||
|
// You can redistribute it and/or modify it under the terms
|
|||
|
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
|
|||
|
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
|
|||
|
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
|
|||
|
// any third-party rights.
|
|||
|
//
|
|||
|
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
|
|||
|
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
|
|||
|
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
|
|||
|
//
|
|||
|
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
|
|||
|
//
|
|||
|
// The interactive user interfaces in modified source and object code versions of the Program must
|
|||
|
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
|
|||
|
//
|
|||
|
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
|
|||
|
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
|
|||
|
// trademark law for use of our trademarks.
|
|||
|
//
|
|||
|
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
|
|||
|
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
|
|||
|
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
|
|||
|
|
|||
|
namespace ASC.Web.Core;
|
|||
|
[Scope]
|
|||
|
public class BruteForceLoginManager
|
|||
|
{
|
|||
|
private readonly LoginSettings _settings;
|
|||
|
private readonly ICache _cache;
|
|||
|
private string _login;
|
|||
|
private string _requestIp;
|
|||
|
|
|||
|
public BruteForceLoginManager(SettingsManager settingsManager, ICache cache)
|
|||
|
{
|
|||
|
_settings = settingsManager.Load<LoginSettings>();
|
|||
|
_cache = cache;
|
|||
|
}
|
|||
|
|
|||
|
public void Init(string login, string requestIp)
|
|||
|
{
|
|||
|
_login = login;
|
|||
|
_requestIp = requestIp;
|
|||
|
}
|
|||
|
|
|||
|
private string GetBlockCacheKey()
|
|||
|
{
|
|||
|
return "loginblock/" + _login + _requestIp;
|
|||
|
}
|
|||
|
|
|||
|
private string GetHistoryCacheKey()
|
|||
|
{
|
|||
|
return "loginsec/" + _login + _requestIp;
|
|||
|
}
|
|||
|
|
|||
|
public bool Increment(out bool showRecaptcha)
|
|||
|
{
|
|||
|
showRecaptcha = true;
|
|||
|
|
|||
|
var blockCacheKey = GetBlockCacheKey();
|
|||
|
|
|||
|
if (_cache.Get<string>(blockCacheKey) != null)
|
|||
|
{
|
|||
|
return false;
|
|||
|
}
|
|||
|
|
|||
|
var historyCacheKey = GetHistoryCacheKey();
|
|||
|
|
|||
|
var history = _cache.Get<List<DateTime>>(historyCacheKey) ?? new List<DateTime>();
|
|||
|
|
|||
|
var now = DateTime.UtcNow;
|
|||
|
|
|||
|
var checkTime = now.Subtract(TimeSpan.FromSeconds(_settings.CheckPeriod));
|
|||
|
|
|||
|
history = history.Where(item => item > checkTime).ToList();
|
|||
|
|
|||
|
history.Add(now);
|
|||
|
|
|||
|
showRecaptcha = history.Count > _settings.AttemptCount - 1;
|
|||
|
|
|||
|
if (history.Count > _settings.AttemptCount)
|
|||
|
{
|
|||
|
_cache.Insert(blockCacheKey, "block", now.Add(TimeSpan.FromSeconds(_settings.BlockTime)));
|
|||
|
_cache.Remove(historyCacheKey);
|
|||
|
return false;
|
|||
|
}
|
|||
|
|
|||
|
_cache.Insert(historyCacheKey, history, now.Add(TimeSpan.FromSeconds(_settings.CheckPeriod)));
|
|||
|
return true;
|
|||
|
}
|
|||
|
|
|||
|
public void Decrement()
|
|||
|
{
|
|||
|
var historyCacheKey = GetHistoryCacheKey();
|
|||
|
|
|||
|
var history = _cache.Get<List<DateTime>>(historyCacheKey) ?? new List<DateTime>();
|
|||
|
|
|||
|
if (history.Count > 0)
|
|||
|
{
|
|||
|
history.RemoveAt(history.Count - 1);
|
|||
|
}
|
|||
|
|
|||
|
_cache.Insert(historyCacheKey, history, DateTime.UtcNow.Add(TimeSpan.FromSeconds(_settings.CheckPeriod)));
|
|||
|
}
|
|||
|
}
|