DocSpace-client/common/ASC.IPSecurity/Services/IPRestrictionsService.cs

// (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
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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// 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.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.InsertOrUpdate);
        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;
    }
}