mirror of
https://github.com/ppy/osu.git
synced 2024-12-25 04:12:53 +08:00
50 lines
1.4 KiB
C#
50 lines
1.4 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 Ionic.Zip;
|
|
|
|
namespace osu.Game.Beatmaps.IO
|
|
{
|
|
public sealed class OszArchiveReader : ArchiveReader
|
|
{
|
|
private readonly Stream archiveStream;
|
|
private readonly ZipFile archive;
|
|
|
|
public OszArchiveReader(Stream archiveStream)
|
|
{
|
|
this.archiveStream = archiveStream;
|
|
archive = ZipFile.Read(archiveStream);
|
|
}
|
|
|
|
public override Stream GetStream(string name)
|
|
{
|
|
ZipEntry entry = archive.Entries.SingleOrDefault(e => e.FileName == name);
|
|
if (entry == null)
|
|
throw new FileNotFoundException();
|
|
|
|
// allow seeking
|
|
MemoryStream copy = new MemoryStream();
|
|
|
|
using (Stream s = entry.OpenReader())
|
|
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.FileName).ToArray();
|
|
|
|
public override Stream GetUnderlyingStream() => archiveStream;
|
|
}
|
|
}
|