326 lines
9.9 KiB
C#
326 lines
9.9 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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namespace ASC.Core.Caching;
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[Singletone]
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class TenantServiceCache
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{
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private const string Key = "tenants";
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private readonly TimeSpan _cacheExpiration;
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internal readonly ICache Cache;
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internal readonly ICacheNotify<TenantCacheItem> CacheNotifyItem;
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internal readonly ICacheNotify<TenantSetting> CacheNotifySettings;
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public TenantServiceCache(
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CoreBaseSettings coreBaseSettings,
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ICacheNotify<TenantCacheItem> cacheNotifyItem,
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ICacheNotify<TenantSetting> cacheNotifySettings,
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ICache cache)
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{
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CacheNotifyItem = cacheNotifyItem;
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CacheNotifySettings = cacheNotifySettings;
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Cache = cache;
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_cacheExpiration = TimeSpan.FromMinutes(2);
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cacheNotifyItem.Subscribe((t) =>
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{
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var tenants = GetTenantStore();
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tenants.Remove(t.TenantId);
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tenants.Clear(coreBaseSettings);
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}, CacheNotifyAction.InsertOrUpdate);
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cacheNotifySettings.Subscribe((s) =>
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{
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Cache.Remove(s.Key);
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}, CacheNotifyAction.Remove);
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}
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internal TenantStore GetTenantStore()
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{
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var store = Cache.Get<TenantStore>(Key);
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if (store == null)
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{
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store = new TenantStore();
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Cache.Insert(Key, store, DateTime.UtcNow.Add(_cacheExpiration));
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}
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return store;
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}
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internal class TenantStore
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{
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private readonly Dictionary<int, Tenant> _byId = new Dictionary<int, Tenant>();
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private readonly Dictionary<string, Tenant> _byDomain = new Dictionary<string, Tenant>();
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private readonly object _locker = new object();
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public Tenant Get(int id)
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{
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Tenant t;
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lock (_locker)
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{
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_byId.TryGetValue(id, out t);
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}
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return t;
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}
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public Tenant Get(string domain)
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{
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if (string.IsNullOrEmpty(domain))
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{
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return null;
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}
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Tenant t;
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lock (_locker)
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{
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_byDomain.TryGetValue(domain, out t);
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}
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return t;
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}
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public void Insert(Tenant t, string ip = null)
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{
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if (t == null)
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{
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return;
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}
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Remove(t.Id);
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lock (_locker)
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{
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_byId[t.Id] = t;
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_byDomain[t.Alias] = t;
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if (!string.IsNullOrEmpty(t.MappedDomain))
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{
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_byDomain[t.MappedDomain] = t;
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}
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if (!string.IsNullOrEmpty(ip))
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{
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_byDomain[ip] = t;
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}
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}
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}
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public void Remove(int id)
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{
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var t = Get(id);
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if (t != null)
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{
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lock (_locker)
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{
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_byId.Remove(id);
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_byDomain.Remove(t.Alias);
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if (!string.IsNullOrEmpty(t.MappedDomain))
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{
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_byDomain.Remove(t.MappedDomain);
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}
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}
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}
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}
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internal void Clear(CoreBaseSettings coreBaseSettings)
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{
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if (!coreBaseSettings.Standalone)
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{
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return;
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}
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lock (_locker)
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{
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_byId.Clear();
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_byDomain.Clear();
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}
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}
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}
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}
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[Scope]
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class ConfigureCachedTenantService : IConfigureNamedOptions<CachedTenantService>
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{
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private readonly IOptionsSnapshot<DbTenantService> _service;
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private readonly TenantServiceCache _tenantServiceCache;
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public ConfigureCachedTenantService(
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IOptionsSnapshot<DbTenantService> service,
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TenantServiceCache tenantServiceCache)
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{
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_service = service;
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_tenantServiceCache = tenantServiceCache;
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}
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public void Configure(string name, CachedTenantService options)
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{
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Configure(options);
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options.Service = _service.Get(name);
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}
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public void Configure(CachedTenantService options)
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{
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options.Service = _service.Value;
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options.TenantServiceCache = _tenantServiceCache;
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options.CacheNotifyItem = _tenantServiceCache.CacheNotifyItem;
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options.CacheNotifySettings = _tenantServiceCache.CacheNotifySettings;
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}
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}
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[Scope]
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class CachedTenantService : ITenantService
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{
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internal ITenantService Service { get; set; }
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internal ICacheNotify<TenantSetting> CacheNotifySettings { get; set; }
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internal ICacheNotify<TenantCacheItem> CacheNotifyItem { get; set; }
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internal TenantServiceCache TenantServiceCache { get; set; }
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private readonly TimeSpan _settingsExpiration;
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private readonly ICache _cache;
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public CachedTenantService()
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{
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_settingsExpiration = TimeSpan.FromMinutes(2);
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}
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public CachedTenantService(DbTenantService service, TenantServiceCache tenantServiceCache, ICache cache) : this()
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{
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_cache = cache;
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Service = service ?? throw new ArgumentNullException(nameof(service));
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TenantServiceCache = tenantServiceCache;
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CacheNotifyItem = tenantServiceCache.CacheNotifyItem;
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CacheNotifySettings = tenantServiceCache.CacheNotifySettings;
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}
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public void ValidateDomain(string domain)
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{
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Service.ValidateDomain(domain);
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}
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public IEnumerable<Tenant> GetTenants(string login, string passwordHash)
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{
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return Service.GetTenants(login, passwordHash);
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}
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public IEnumerable<Tenant> GetTenants(DateTime from, bool active = true)
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{
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return Service.GetTenants(from, active);
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}
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public IEnumerable<Tenant> GetTenants(List<int> ids)
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{
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return Service.GetTenants(ids);
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}
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public Tenant GetTenant(int id)
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{
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var tenants = TenantServiceCache.GetTenantStore();
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var t = tenants.Get(id);
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if (t == null)
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{
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t = Service.GetTenant(id);
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if (t != null)
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{
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tenants.Insert(t);
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}
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}
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return t;
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}
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public Tenant GetTenant(string domain)
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{
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var tenants = TenantServiceCache.GetTenantStore();
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var t = tenants.Get(domain);
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if (t == null)
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{
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t = Service.GetTenant(domain);
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if (t != null)
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{
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tenants.Insert(t);
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}
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}
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return t;
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}
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public Tenant GetTenantForStandaloneWithoutAlias(string ip)
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{
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var tenants = TenantServiceCache.GetTenantStore();
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var t = tenants.Get(ip);
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if (t == null)
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{
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t = Service.GetTenantForStandaloneWithoutAlias(ip);
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if (t != null)
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{
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tenants.Insert(t, ip);
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}
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}
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return t;
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}
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public Tenant SaveTenant(CoreSettings coreSettings, Tenant tenant)
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{
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tenant = Service.SaveTenant(coreSettings, tenant);
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CacheNotifyItem.Publish(new TenantCacheItem() { TenantId = tenant.Id }, CacheNotifyAction.InsertOrUpdate);
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return tenant;
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}
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public void RemoveTenant(int id, bool auto = false)
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{
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Service.RemoveTenant(id, auto);
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CacheNotifyItem.Publish(new TenantCacheItem() { TenantId = id }, CacheNotifyAction.InsertOrUpdate);
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}
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public IEnumerable<TenantVersion> GetTenantVersions()
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{
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return Service.GetTenantVersions();
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}
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public byte[] GetTenantSettings(int tenant, string key)
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{
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var cacheKey = string.Format("settings/{0}/{1}", tenant, key);
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var data = _cache.Get<byte[]>(cacheKey);
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if (data == null)
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{
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data = Service.GetTenantSettings(tenant, key);
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_cache.Insert(cacheKey, data ?? Array.Empty<byte>(), DateTime.UtcNow + _settingsExpiration);
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}
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return data == null ? null : data.Length == 0 ? null : data;
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}
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public void SetTenantSettings(int tenant, string key, byte[] data)
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{
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Service.SetTenantSettings(tenant, key, data);
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var cacheKey = string.Format("settings/{0}/{1}", tenant, key);
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CacheNotifySettings.Publish(new TenantSetting { Key = cacheKey }, CacheNotifyAction.Remove);
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}
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}
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