280 lines
9.6 KiB
C#
280 lines
9.6 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.Data.Backup.Services;
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[Singletone]
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public class BackupWorker
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{
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public const string CUSTOM_DISTRIBUTED_TASK_QUEUE_NAME = "backup";
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public string TempFolder { get; set; }
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private DistributedTaskQueue _progressQueue;
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private string _currentRegion;
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private Dictionary<string, string> _configPaths;
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private int _limit;
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private string _upgradesPath;
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private readonly ILogger<BackupWorker> _logger;
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private readonly TempPath _tempPath;
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private readonly IServiceProvider _serviceProvider;
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private readonly object _synchRoot = new object();
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public BackupWorker(
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ILogger<BackupWorker> logger,
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IDistributedTaskQueueFactory queueFactory,
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IServiceProvider serviceProvider,
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TempPath tempPath)
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{
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_serviceProvider = serviceProvider;
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_logger = logger;
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_progressQueue = queueFactory.CreateQueue(CUSTOM_DISTRIBUTED_TASK_QUEUE_NAME);
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_tempPath = tempPath;
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TempFolder = Path.Combine(_tempPath.GetTempPath(), "backup");
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}
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public void Start(BackupSettings settings)
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{
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if (!Directory.Exists(TempFolder))
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{
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Directory.CreateDirectory(TempFolder);
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}
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_limit = settings.Limit;
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_upgradesPath = settings.UpgradesPath;
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_currentRegion = settings.WebConfigs.CurrentRegion;
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_configPaths = settings.WebConfigs.Elements.ToDictionary(el => el.Region, el => PathHelper.ToRootedConfigPath(el.Path));
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_configPaths[_currentRegion] = PathHelper.ToRootedConfigPath(settings.WebConfigs.CurrentPath);
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var invalidConfigPath = _configPaths.Values.FirstOrDefault(path => !File.Exists(path));
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if (invalidConfigPath != null)
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{
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_logger.WarningCanNotBackupFile(invalidConfigPath);
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}
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}
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public void Stop()
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{
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if (_progressQueue != null)
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{
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var tasks = _progressQueue.GetAllTasks(DistributedTaskQueue.INSTANCE_ID);
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foreach (var t in tasks)
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{
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_progressQueue.DequeueTask(t.Id);
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}
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_progressQueue = null;
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}
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}
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public BackupProgress StartBackup(StartBackupRequest request)
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{
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lock (_synchRoot)
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{
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var item = _progressQueue.GetAllTasks<BackupProgressItem>().FirstOrDefault(t => t.TenantId == request.TenantId && t.BackupProgressItemEnum == BackupProgressItemEnum.Backup);
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if (item != null && item.IsCompleted)
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{
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_progressQueue.DequeueTask(item.Id);
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item = null;
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}
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if (item == null)
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{
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item = _serviceProvider.GetService<BackupProgressItem>();
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item.Init(request, false, TempFolder, _limit, _currentRegion, _configPaths);
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_progressQueue.EnqueueTask(item);
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}
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item.PublishChanges();
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return ToBackupProgress(item);
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}
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}
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public void StartScheduledBackup(BackupSchedule schedule)
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{
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lock (_synchRoot)
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{
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var item = _progressQueue.GetAllTasks<BackupProgressItem>().FirstOrDefault(t => t.TenantId == schedule.TenantId && t.BackupProgressItemEnum == BackupProgressItemEnum.Backup);
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if (item != null && item.IsCompleted)
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{
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_progressQueue.DequeueTask(item.Id);
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item = null;
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}
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if (item == null)
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{
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item = _serviceProvider.GetService<BackupProgressItem>();
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item.Init(schedule, false, TempFolder, _limit, _currentRegion, _configPaths);
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_progressQueue.EnqueueTask(item);
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}
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}
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}
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public BackupProgress GetBackupProgress(int tenantId)
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{
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lock (_synchRoot)
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{
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return ToBackupProgress(_progressQueue.GetAllTasks<BackupProgressItem>().FirstOrDefault(t => t.TenantId == tenantId && t.BackupProgressItemEnum == BackupProgressItemEnum.Backup));
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}
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}
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public BackupProgress GetTransferProgress(int tenantId)
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{
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lock (_synchRoot)
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{
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return ToBackupProgress(_progressQueue.GetAllTasks<TransferProgressItem>().FirstOrDefault(t => t.TenantId == tenantId && t.BackupProgressItemEnum == BackupProgressItemEnum.Transfer));
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}
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}
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public BackupProgress GetRestoreProgress(int tenantId)
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{
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lock (_synchRoot)
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{
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return ToBackupProgress(_progressQueue.GetAllTasks<RestoreProgressItem>().FirstOrDefault(t => t.TenantId == tenantId && t.BackupProgressItemEnum == BackupProgressItemEnum.Restore));
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}
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}
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public void ResetBackupError(int tenantId)
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{
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lock (_synchRoot)
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{
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var progress = _progressQueue.GetAllTasks<BackupProgressItem>().FirstOrDefault(t => t.TenantId == tenantId);
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if (progress != null)
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{
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progress.Exception = null;
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}
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}
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}
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public void ResetRestoreError(int tenantId)
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{
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lock (_synchRoot)
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{
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var progress = _progressQueue.GetAllTasks<RestoreProgressItem>().FirstOrDefault(t => t.TenantId == tenantId);
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if (progress != null)
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{
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progress.Exception = null;
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}
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}
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}
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public BackupProgress StartRestore(StartRestoreRequest request)
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{
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lock (_synchRoot)
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{
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var item = _progressQueue.GetAllTasks<RestoreProgressItem>().FirstOrDefault(t => t.TenantId == request.TenantId);
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if (item != null && item.IsCompleted)
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{
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_progressQueue.DequeueTask(item.Id);
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item = null;
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}
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if (item == null)
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{
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item = _serviceProvider.GetService<RestoreProgressItem>();
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item.Init(request, TempFolder, _upgradesPath, _currentRegion, _configPaths);
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_progressQueue.EnqueueTask(item);
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}
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return ToBackupProgress(item);
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}
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}
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public BackupProgress StartTransfer(int tenantId, string targetRegion, bool notify)
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{
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lock (_synchRoot)
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{
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var item = _progressQueue.GetAllTasks<TransferProgressItem>().FirstOrDefault(t => t.TenantId == tenantId);
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if (item != null && item.IsCompleted)
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{
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_progressQueue.DequeueTask(item.Id);
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item = null;
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}
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if (item == null)
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{
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item = _serviceProvider.GetService<TransferProgressItem>();
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item.Init(targetRegion, tenantId, TempFolder, _limit, notify, _currentRegion, _configPaths);
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_progressQueue.EnqueueTask(item);
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}
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return ToBackupProgress(item);
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}
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}
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internal static string GetBackupHash(string path)
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{
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using (var sha256 = SHA256.Create())
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using (var fileStream = File.OpenRead(path))
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{
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fileStream.Position = 0;
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var hash = sha256.ComputeHash(fileStream);
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return BitConverter.ToString(hash).Replace("-", string.Empty);
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}
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}
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private BackupProgress ToBackupProgress(BaseBackupProgressItem progressItem)
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{
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if (progressItem == null)
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{
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return null;
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}
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var progress = new BackupProgress
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{
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IsCompleted = progressItem.IsCompleted,
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Progress = (int)progressItem.Percentage,
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Error = progressItem.Exception != null ? progressItem.Exception.Message : "",
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TenantId = progressItem.TenantId,
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BackupProgressEnum = progressItem.BackupProgressItemEnum.Convert()
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};
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if ((progressItem.BackupProgressItemEnum == BackupProgressItemEnum.Backup || progressItem.BackupProgressItemEnum == BackupProgressItemEnum.Transfer) && progressItem.Link != null)
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{
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progress.Link = progressItem.Link;
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}
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return progress;
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}
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public bool IsInstanceTooBusy()
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{
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var instanceTasks = _progressQueue.GetAllTasks(DistributedTaskQueue.INSTANCE_ID);
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if (_progressQueue.MaxThreadsCount >= instanceTasks.Count())
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{
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return false;
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}
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return true;
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}
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} |