94 lines
No EOL
3.2 KiB
C#
94 lines
No EOL
3.2 KiB
C#
/*
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Copyright (c) 2022, John Lewin, Lars Brubaker
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Threading.Tasks;
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using MatterHackers.Agg;
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namespace MatterHackers.MatterControl.Library
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{
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public class ZipMemoryItem : FileSystemItem, ILibraryAssetStream
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{
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public ZipMemoryItem(ZipMemoryContainer containingZip, string filePath, string relativePath, long fileSize)
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: base(filePath)
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{
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this.ContainingZip = containingZip;
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this.RelativePath = relativePath;
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this.Name = Path.GetFileName(relativePath);
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this.FileSize = fileSize;
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}
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public override string Name { get; set; }
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public string AssetPath { get; } = null;
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public string ContentType => Path.GetExtension(this.RelativePath).ToLower().Trim('.');
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public string FileName => Path.GetFileName(this.RelativePath);
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/// <summary>
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/// Gets the size, in bytes, of the current file.
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/// </summary>
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public long FileSize { get; private set; }
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public override string ID => Util.GetLongHashCode($"{this.FilePath}/{this.RelativePath}").ToString();
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public ZipMemoryContainer ContainingZip { get; }
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public string RelativePath { get; set; }
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public async Task<StreamAndLength> GetStream(Action<double, string> reportProgress)
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{
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var memStream = await Task.Run(() =>
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{
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var memoryStream = new MemoryStream();
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using (var file = File.OpenRead(this.FilePath))
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using (var zip = new ZipArchive(file, ZipArchiveMode.Read))
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{
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var zipStream = zip.Entries.Where(e => e.FullName == this.RelativePath).FirstOrDefault()?.Open();
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zipStream?.CopyTo(memoryStream);
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zipStream?.Dispose();
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}
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memoryStream.Position = 0;
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return memoryStream;
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});
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return new StreamAndLength()
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{
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Stream = memStream,
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Length = memStream.Length
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};
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}
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}
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} |