mirror of https://github.com/ppy/osu
51 lines
1.5 KiB
C#
51 lines
1.5 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
|
|
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
|
|
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using SharpCompress.Archives.Zip;
|
|
|
|
namespace osu.Game.IO.Archives
|
|
{
|
|
public sealed class ZipArchiveReader : ArchiveReader
|
|
{
|
|
private readonly Stream archiveStream;
|
|
private readonly ZipArchive archive;
|
|
|
|
public ZipArchiveReader(Stream archiveStream, string name = null)
|
|
: base(name)
|
|
{
|
|
this.archiveStream = archiveStream;
|
|
archive = ZipArchive.Open(archiveStream);
|
|
}
|
|
|
|
public override Stream GetStream(string name)
|
|
{
|
|
ZipArchiveEntry entry = archive.Entries.SingleOrDefault(e => e.Key == name);
|
|
if (entry == null)
|
|
throw new FileNotFoundException();
|
|
|
|
// allow seeking
|
|
MemoryStream copy = new MemoryStream();
|
|
|
|
using (Stream s = entry.OpenEntryStream())
|
|
s.CopyTo(copy);
|
|
|
|
copy.Position = 0;
|
|
|
|
return copy;
|
|
}
|
|
|
|
public override void Dispose()
|
|
{
|
|
archive.Dispose();
|
|
archiveStream.Dispose();
|
|
}
|
|
|
|
public override IEnumerable<string> Filenames => archive.Entries.Select(e => e.Key).ToArray();
|
|
|
|
public override Stream GetUnderlyingStream() => archiveStream;
|
|
}
|
|
}
|