2021-05-17 11:35:00 +00:00
|
|
|
/*
|
|
|
|
*
|
|
|
|
* (c) Copyright Ascensio System Limited 2010-2021
|
|
|
|
*
|
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
* you may not use this file except in compliance with the License.
|
|
|
|
* You may obtain a copy of the License at
|
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
* See the License for the specific language governing permissions and
|
|
|
|
* limitations under the License.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
using System;
|
|
|
|
using System.IO;
|
|
|
|
|
|
|
|
namespace ASC.Common
|
|
|
|
{
|
|
|
|
[Singletone]
|
|
|
|
public class TempStream
|
|
|
|
{
|
|
|
|
private TempPath TempPath { get; }
|
|
|
|
|
|
|
|
public TempStream(TempPath tempPath)
|
|
|
|
{
|
|
|
|
TempPath = tempPath;
|
|
|
|
}
|
|
|
|
|
|
|
|
public Stream GetBuffered(Stream srcStream)
|
|
|
|
{
|
2022-01-24 10:49:00 +00:00
|
|
|
if (srcStream == null) throw new ArgumentNullException(nameof(srcStream));
|
2021-05-17 11:35:00 +00:00
|
|
|
if (!srcStream.CanSeek || srcStream.CanTimeout)
|
|
|
|
{
|
|
|
|
//Buffer it
|
|
|
|
var memStream = Create();
|
|
|
|
srcStream.CopyTo(memStream);
|
|
|
|
memStream.Position = 0;
|
|
|
|
return memStream;
|
|
|
|
}
|
|
|
|
return srcStream;
|
|
|
|
}
|
|
|
|
|
|
|
|
public Stream Create()
|
|
|
|
{
|
|
|
|
return new FileStream(TempPath.GetTempFileName(), FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read, 4096, FileOptions.DeleteOnClose);
|
|
|
|
}
|
|
|
|
}
|
2019-05-15 14:56:09 +00:00
|
|
|
}
|