// (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.Files.ThumbnailBuilder; [Singletone] public class ThumbnailBuilderService : BackgroundService { private readonly IServiceScopeFactory _serviceScopeFactory; private readonly ThumbnailSettings _thumbnailSettings; private readonly ILogger _logger; private readonly BuilderQueue _builderQueue; public ThumbnailBuilderService( BuilderQueue builderQueue, IServiceScopeFactory serviceScopeFactory, ILogger logger, ThumbnailSettings settings) { _serviceScopeFactory = serviceScopeFactory; _thumbnailSettings = settings; _logger = logger; _builderQueue = builderQueue; } protected override async Task ExecuteAsync(CancellationToken stoppingToken) { _logger.InformationThumbnailWorkerRunnig(); while (!stoppingToken.IsCancellationRequested) { await Procedure(stoppingToken); } _logger.InformationThumbnailWorkerStopping(); } private async Task Procedure(CancellationToken stoppingToken) { _logger.TraceProcedureStart(); if (stoppingToken.IsCancellationRequested) { return; } //var configSection = (ConfigSection)ConfigurationManager.GetSection("thumbnailBuilder") ?? new ConfigSection(); //CommonLinkUtility.Initialize(configSection.ServerRoot, false); var filesWithoutThumbnails = FileDataQueue.Queue.Select(pair => pair.Value).ToList(); if (filesWithoutThumbnails.Count == 0) { _logger.TraceProcedureWaiting(_thumbnailSettings.LaunchFrequency); await Task.Delay(TimeSpan.FromSeconds(_thumbnailSettings.LaunchFrequency), stoppingToken); return; } using (var scope = _serviceScopeFactory.CreateScope()) { var fileDataProvider = scope.ServiceProvider.GetService(); var premiumTenants = fileDataProvider.GetPremiumTenants(); filesWithoutThumbnails = filesWithoutThumbnails .OrderByDescending(fileData => Array.IndexOf(premiumTenants, fileData.TenantId)) .ToList(); await _builderQueue.BuildThumbnails(filesWithoutThumbnails); } _logger.TraceProcedureFinish(); } } public static class WorkerExtension { public static void Register(DIHelper services) { services.TryAdd(); services.TryAdd>(); services.TryAdd>(); } }