90 lines
3.4 KiB
C#
90 lines
3.4 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.Storage.DataOperators;
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public class ZipWriteOperator : IDataWriteOperator
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{
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private readonly GZipOutputStream _gZipOutputStream;
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private readonly TarOutputStream _tarOutputStream;
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private readonly Stream _file;
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private readonly TempStream _tempStream;
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public bool NeedUpload
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{
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get
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{
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return true;
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}
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}
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public string Hash => throw new NotImplementedException();
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public string StoragePath => throw new NotImplementedException();
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public ZipWriteOperator(TempStream tempStream, string targetFile)
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{
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_tempStream = tempStream;
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_file = new FileStream(targetFile, FileMode.Create);
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_gZipOutputStream = new GZipOutputStream(_file);
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_tarOutputStream = new TarOutputStream(_gZipOutputStream, Encoding.UTF8);
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}
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public async Task WriteEntryAsync(string tarKey, string domain, string path, IDataStore store)
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{
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Stream fileStream = null;
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await ActionInvoker.TryAsync(async () =>
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{
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fileStream = await store.GetReadStreamAsync(domain, path);
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}, 5, error => throw error);
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if (fileStream != null)
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{
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await WriteEntryAsync(tarKey, fileStream);
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fileStream.Dispose();
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}
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}
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public async Task WriteEntryAsync(string tarKey, Stream stream)
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{
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await using (var buffered = _tempStream.GetBuffered(stream))
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{
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var entry = TarEntry.CreateTarEntry(tarKey);
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entry.Size = buffered.Length;
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await _tarOutputStream.PutNextEntryAsync(entry, default);
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buffered.Position = 0;
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await buffered.CopyToAsync(_tarOutputStream);
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await _tarOutputStream.CloseEntryAsync(default);
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}
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}
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public async ValueTask DisposeAsync()
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{
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_tarOutputStream.Close();
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await _tarOutputStream.DisposeAsync();
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}
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}
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