2019-05-15 14:56:09 +00:00
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/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.IO;
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2020-04-23 11:50:34 +00:00
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2019-05-15 14:56:09 +00:00
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using ASC.Data.Storage;
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public static class StreamExtension
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2020-05-06 08:41:27 +00:00
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{
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// public const int BufferSize = 2048; //NOTE: set to 2048 to fit in minimum tcp window
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2019-05-15 14:56:09 +00:00
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public static Stream GetBuffered(this Stream srcStream)
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{
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2019-08-16 10:15:25 +00:00
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if (srcStream == null) throw new ArgumentNullException(nameof(srcStream));
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2019-05-15 14:56:09 +00:00
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if (!srcStream.CanSeek || srcStream.CanTimeout)
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{
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//Buffer it
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var memStream = TempStream.Create();
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2020-05-06 08:41:27 +00:00
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srcStream.CopyTo(memStream);
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2019-05-15 14:56:09 +00:00
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memStream.Position = 0;
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return memStream;
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}
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return srcStream;
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}
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public static byte[] GetCorrectBuffer(this Stream stream)
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{
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if (stream == null)
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{
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2019-08-16 10:15:25 +00:00
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throw new ArgumentNullException(nameof(stream));
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2019-05-15 14:56:09 +00:00
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}
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2019-08-15 15:08:40 +00:00
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using var mem = stream.GetBuffered();
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var buffer = new byte[mem.Length];
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mem.Position = 0;
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mem.Read(buffer, 0, buffer.Length);
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return buffer;
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2019-05-15 14:56:09 +00:00
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}
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}
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