DocSpace-buildtools/common/ASC.IPSecurity/IPRestrictionsService.cs

/*
 *
 * (c) Copyright Ascensio System Limited 2010-2018
 *
 * This program is freeware. You can redistribute it and/or modify it under the terms of the GNU 
 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
 * In accordance with Section 7(a) of the GNU GPL 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 more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
 *
 * You can contact Ascensio System SIA by email at sales@onlyoffice.com
 *
 * The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display 
 * Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
 *
 * Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains 
 * relevant author attributions when distributing the software. If the display of the logo in its graphic 
 * form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE" 
 * in every copy of the program you distribute. 
 * Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
*/

namespace ASC.IPSecurity;

[Singletone]
public class IPRestrictionsServiceCache
{
    public ICache Cache { get; set; }

    private const string CacheKey = "iprestrictions";

    internal readonly ICacheNotify<IPRestrictionItem> Notify;

    public IPRestrictionsServiceCache(ICacheNotify<IPRestrictionItem> notify, ICache cache)
    {
        Cache = cache;
        notify.Subscribe((r) => Cache.Remove(GetCacheKey(r.TenantId)), CacheNotifyAction.Any);
        Notify = notify;
    }

    public static string GetCacheKey(int tenant)
    {
        return CacheKey + tenant;
    }
}

[Scope]
public class IPRestrictionsService
{
    private readonly ICache _cache;
    private readonly ICacheNotify<IPRestrictionItem> _notify;
    private readonly IPRestrictionsRepository _ipRestrictionsRepository;
    private static readonly TimeSpan _timeout = TimeSpan.FromMinutes(5);

    public IPRestrictionsService(
        IPRestrictionsRepository iPRestrictionsRepository,
        IPRestrictionsServiceCache iPRestrictionsServiceCache)
    {
        _ipRestrictionsRepository = iPRestrictionsRepository;
        _cache = iPRestrictionsServiceCache.Cache;
        _notify = iPRestrictionsServiceCache.Notify;
    }

    public IEnumerable<IPRestriction> Get(int tenant)
    {
        var key = IPRestrictionsServiceCache.GetCacheKey(tenant);
        var restrictions = _cache.Get<List<IPRestriction>>(key);
        if (restrictions == null)
        {
            restrictions = _ipRestrictionsRepository.Get(tenant);
            _cache.Insert(key, restrictions, _timeout);
        }

        return restrictions;
    }

    public IEnumerable<string> Save(IEnumerable<string> ips, int tenant)
    {
        var restrictions = _ipRestrictionsRepository.Save(ips, tenant);
        _notify.Publish(new IPRestrictionItem { TenantId = tenant }, CacheNotifyAction.InsertOrUpdate);

        return restrictions;
    }
}