/// <summary>
/// Constructor with a FileInfo object to an existing file.
/// </summary>
/// <param name="fileInfo"></param>
/// <param name="options"></param>
public static IArchive Open(FileInfo fileInfo, ReaderOptions options = null)
{
fileInfo.CheckNotNull(nameof(fileInfo));
options = options ?? new ReaderOptions {
LeaveStreamOpen = false
};
using (var stream = fileInfo.OpenRead())
{
if (ZipArchive.IsZipFile(stream, null))
{
return(ZipArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (SevenZipArchive.IsSevenZipFile(stream))
{
return(SevenZipArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
return(GZipArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (RarArchive.IsRarFile(stream, options))
{
return(RarArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
return(TarArchive.Open(fileInfo, options));
}
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Archive Formats: Zip, GZip, Tar, Rar, 7Zip");
}
}
public static bool EnsureValidArchives(string filePath)
{
return(ZipArchive.IsZipFile(filePath) ||
RarArchive.IsRarFile(filePath) ||
SevenZipArchive.IsSevenZipFile(filePath) ||
TarArchive.IsTarFile(filePath));
}
/// <summary>
/// Opens an Archive for random access
/// </summary>
/// <param name="stream"></param>
/// <param name="readerOptions"></param>
/// <returns></returns>
public static IArchive Open(Stream stream, ReaderOptions readerOptions = null)
{
stream.CheckNotNull(nameof(stream));
if (!stream.CanRead || !stream.CanSeek)
{
throw new ArgumentException("Stream should be readable and seekable");
}
readerOptions = readerOptions ?? new ReaderOptions();
stream.Seek(0, SeekOrigin.Begin);
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(GZipArchive.Open(stream, readerOptions));
}
stream.Seek(0, SeekOrigin.Begin);
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(TarArchive.Open(stream, readerOptions));
}
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Archive Formats: Zip, GZip, Tar, Rar, 7Zip, LZip");
}
private CompressionType GetCompressionType(string sourceFile)
{
if (SevenZipArchive.IsSevenZipFile(sourceFile))
{
return(CompressionType.Sevenzip);
}
if (ZipArchive.IsZipFile(sourceFile))
{
return(CompressionType.Zip);
}
if (GZipArchive.IsGZipFile(sourceFile) && Path.GetExtension(sourceFile).ToLower() == ".gz")
{
return(CompressionType.Gzip);
}
if (RarArchive.IsRarFile(sourceFile))
{
return(CompressionType.Rar);
}
if (TarArchive.IsTarFile(sourceFile) && Path.GetExtension(sourceFile).ToLower() == ".tar")
{
return(CompressionType.Tar);
}
return(CompressionType.None);
}
/// <summary>
/// Opens a Reader for Non-seeking usage
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IReader Open(Stream stream, ReaderOptions options = null)
{
stream.CheckNotNull(nameof(stream));
options = options != null ?options: new ReaderOptions()
{
LeaveStreamOpen = false
};
RewindableStream rewindableStream = new RewindableStream(stream);
rewindableStream.StartRecording();
rewindableStream.Rewind(false);
if (GZipArchive.IsGZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
GZipStream testStream = new GZipStream(rewindableStream, CompressionMode.Decompress);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.GZip));
}
rewindableStream.Rewind(true);
return(GZipReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (TarArchive.IsTarFile(rewindableStream))
{
rewindableStream.Rewind(true);
return(TarReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Reader Formats: Zip, GZip, BZip2, Tar, Rar, LZip, XZ");
}
/// <summary>
/// Opens a TarReader for Non-seeking usage with a single volume
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static TarReader Open(Stream stream, Options options = Options.KeepStreamsOpen)
{
stream.CheckNotNull("stream");
RewindableStream rewindableStream = new RewindableStream(stream);
rewindableStream.StartRecording();
if (GZipArchive.IsGZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
GZipStream testStream = new GZipStream(rewindableStream, CompressionMode.Decompress);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, CompressionType.GZip, options));
}
throw new InvalidFormatException("Not a tar file.");
}
rewindableStream.Rewind(false);
if (BZip2Stream.IsBZip2(rewindableStream))
{
rewindableStream.Rewind(false);
BZip2Stream testStream = new BZip2Stream(rewindableStream, CompressionMode.Decompress, false);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, CompressionType.BZip2, options));
}
throw new InvalidFormatException("Not a tar file.");
}
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, CompressionType.None, options));
}
public static TarReader Open(Stream stream, Options options)
{
Utility.CheckNotNull(stream, "stream");
RewindableStream stream2 = new RewindableStream(stream);
stream2.StartRecording();
if (GZipArchive.IsGZipFile(stream2))
{
stream2.Rewind(false);
GZipStream stream3 = new GZipStream(stream2, CompressionMode.Decompress);
if (!TarArchive.IsTarFile(stream3))
{
throw new InvalidFormatException("Not a tar file.");
}
stream2.Rewind(true);
return(new TarReader(stream2, CompressionType.GZip, options));
}
stream2.Rewind(false);
if (BZip2Stream.IsBZip2(stream2))
{
stream2.Rewind(false);
BZip2Stream stream4 = new BZip2Stream(stream2, CompressionMode.Decompress, false, false);
if (!TarArchive.IsTarFile(stream4))
{
throw new InvalidFormatException("Not a tar file.");
}
stream2.Rewind(true);
return(new TarReader(stream2, CompressionType.BZip2, options));
}
stream2.Rewind(true);
return(new TarReader(stream2, CompressionType.None, options));
}
private static bool IsArchive(Stream stream, out ArchiveType?type)
{
type = null;
stream.CheckNotNull(nameof(stream));
if (!stream.CanRead || !stream.CanSeek)
{
throw new ArgumentException("Stream should be readable and seekable");
}
if (ZipArchive.IsZipFile(stream, null))
{
type = ArchiveType.Zip;
}
stream.Seek(0, SeekOrigin.Begin);
if (type == null)
{
if (SevenZipArchive.IsSevenZipFile(stream))
{
type = ArchiveType.SevenZip;
}
stream.Seek(0, SeekOrigin.Begin);
}
if (type == null)
{
if (GZipArchive.IsGZipFile(stream))
{
type = ArchiveType.GZip;
}
stream.Seek(0, SeekOrigin.Begin);
}
if (type == null)
{
if (RarArchive.IsRarFile(stream))
{
type = ArchiveType.Rar;
}
stream.Seek(0, SeekOrigin.Begin);
}
if (type == null)
{
if (TarArchive.IsTarFile(stream))
{
type = ArchiveType.Tar;
}
stream.Seek(0, SeekOrigin.Begin);
}
if (type == null) //test multipartzip as it could find zips in other non compressed archive types?
{
if (ZipArchive.IsZipMulti(stream)) //test the zip (last) file of a multipart zip
{
type = ArchiveType.Zip;
}
stream.Seek(0, SeekOrigin.Begin);
}
return(type != null);
}
/// <summary>
/// Opens a Reader for Non-seeking usage
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IReader Open(Stream stream, Options options = Options.KeepStreamsOpen)
{
stream.CheckNotNull("stream");
RewindableStream rewindableStream = new RewindableStream(stream);
rewindableStream.StartRecording();
if (ZipArchive.IsZipFile(rewindableStream, null))
{
rewindableStream.Rewind(true);
return(ZipReader.Open(rewindableStream, null, options));
}
rewindableStream.Rewind(false);
if (GZipArchive.IsGZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
GZipStream testStream = new GZipStream(rewindableStream, CompressionMode.Decompress);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, CompressionType.GZip, options));
}
rewindableStream.Rewind(true);
return(GZipReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (BZip2Stream.IsBZip2(rewindableStream))
{
rewindableStream.Rewind(false);
BZip2Stream testStream = new BZip2Stream(rewindableStream, CompressionMode.Decompress, false);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, CompressionType.BZip2, options));
}
}
rewindableStream.Rewind(false);
if (TarArchive.IsTarFile(rewindableStream))
{
rewindableStream.Rewind(true);
return(TarReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (RarArchive.IsRarFile(rewindableStream, options))
{
rewindableStream.Rewind(true);
return(RarReader.Open(rewindableStream, options));
}
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Reader Formats: Zip, GZip, BZip2, Tar, Rar");
}
public static IReader Open(Stream stream, Options options)
{
Utility.CheckNotNull(stream, "stream");
RewindableStream stream2 = new RewindableStream(stream);
stream2.StartRecording();
if (ZipArchive.IsZipFile(stream2, null))
{
stream2.Rewind(true);
return(ZipReader.Open(stream2, null, options));
}
stream2.Rewind(false);
if (GZipArchive.IsGZipFile(stream2))
{
stream2.Rewind(false);
GZipStream stream3 = new GZipStream(stream2, CompressionMode.Decompress);
if (TarArchive.IsTarFile(stream3))
{
stream2.Rewind(true);
return(new TarReader(stream2, CompressionType.GZip, options));
}
stream2.Rewind(true);
return(GZipReader.Open(stream2, options));
}
stream2.Rewind(false);
if (BZip2Stream.IsBZip2(stream2))
{
stream2.Rewind(false);
BZip2Stream stream4 = new BZip2Stream(stream2, CompressionMode.Decompress, false, false);
if (TarArchive.IsTarFile(stream4))
{
stream2.Rewind(true);
return(new TarReader(stream2, CompressionType.BZip2, options));
}
}
stream2.Rewind(false);
if (TarArchive.IsTarFile(stream2))
{
stream2.Rewind(true);
return(TarReader.Open(stream2, options));
}
stream2.Rewind(false);
if (!RarArchive.IsRarFile(stream2, options))
{
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Reader Formats: Zip, GZip, BZip2, Tar, Rar");
}
stream2.Rewind(true);
return(RarReader.Open(stream2, options));
}
public static IArchive Open(Stream stream, Options options = 1)
{
stream.CheckNotNull("stream");
if (!stream.CanRead || !stream.CanSeek)
{
throw new ArgumentException("Stream should be readable and seekable");
}
stream.Seek(0L, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Seek(0L, SeekOrigin.Begin);
return(TarArchive.Open(stream, options));
}
stream.Seek(0L, SeekOrigin.Begin);
throw new InvalidOperationException("Cannot determine compressed stream type.");
}
/// <summary>
/// Opens a TarReader for Non-seeking usage with a single volume
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static TarReader Open(Stream stream, ReaderOptions options = null)
{
stream.CheckNotNull(nameof(stream));
options = options ?? new ReaderOptions();
RewindableStream rewindableStream = new RewindableStream(stream);
rewindableStream.StartRecording();
if (GZipArchive.IsGZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
GZipStream testStream = new GZipStream(rewindableStream, CompressionMode.Decompress);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.GZip));
}
throw new InvalidFormatException("Not a tar file.");
}
rewindableStream.Rewind(false);
if (BZip2Stream.IsBZip2(rewindableStream))
{
rewindableStream.Rewind(false);
BZip2Stream testStream = new BZip2Stream(rewindableStream, CompressionMode.Decompress, false);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.BZip2));
}
throw new InvalidFormatException("Not a tar file.");
}
rewindableStream.Rewind(false);
if (LZipStream.IsLZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
LZipStream testStream = new LZipStream(rewindableStream, CompressionMode.Decompress);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.LZip));
}
throw new InvalidFormatException("Not a tar file.");
}
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.None));
}
/// <summary>
/// Opens an Archive for random access
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IArchive Open(Stream stream, Options options = Options.KeepStreamsOpen)
{
stream.CheckNotNull("stream");
if (!stream.CanRead || !stream.CanSeek)
{
throw new ArgumentException("Stream should be readable and seekable");
}
if (ZipArchive.IsZipFile(stream, null))
{
stream.Seek(0, SeekOrigin.Begin);
return(ZipArchive.Open(stream, options, null));
}
#if RAR
stream.Seek(0, SeekOrigin.Begin);
if (RarArchive.IsRarFile(stream, Options.LookForHeader | Options.KeepStreamsOpen))
{
stream.Seek(0, SeekOrigin.Begin);
return(RarArchive.Open(stream, options));
}
#endif
#if TAR
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(TarArchive.Open(stream, options));
}
#endif
#if SEVENZIP
stream.Seek(0, SeekOrigin.Begin);
if (SevenZipArchive.IsSevenZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(SevenZipArchive.Open(stream, options));
}
#endif
#if GZIP
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(GZipArchive.Open(stream, options));
}
#endif
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Archive Formats: Zip, GZip, Tar, Rar, 7Zip");
}
/// <summary>
/// Constructor with a FileInfo object to an existing file.
/// </summary>
/// <param name="fileInfo"></param>
/// <param name="options"></param>
public static IArchive Open(FileInfo fileInfo, Options options)
{
fileInfo.CheckNotNull("fileInfo");
using (var stream = fileInfo.OpenRead())
{
if (ZipArchive.IsZipFile(stream, null))
{
stream.Dispose();
return(ZipArchive.Open(fileInfo, options, null));
}
#if RAR
stream.Seek(0, SeekOrigin.Begin);
if (RarArchive.IsRarFile(stream, Options.LookForHeader | Options.KeepStreamsOpen))
{
stream.Dispose();
return(RarArchive.Open(fileInfo, options));
}
#endif
#if TAR
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Dispose();
return(TarArchive.Open(fileInfo, options));
}
#endif
#if SEVENZIP
stream.Seek(0, SeekOrigin.Begin);
if (SevenZipArchive.IsSevenZipFile(stream))
{
stream.Dispose();
return(SevenZipArchive.Open(fileInfo, options));
}
#endif
#if GZIP
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
stream.Dispose();
return(GZipArchive.Open(fileInfo, options));
}
#endif
throw new InvalidOperationException("Cannot determine compressed stream type.");
}
}
public static bool TryOpen(Stream stream, ReaderOptions readerOptions, ArchiveTypeMask archiveTypes, out IArchive archive)
{
stream.CheckNotNull("stream");
if (!stream.CanRead || !stream.CanSeek)
{
throw new ArgumentException("Stream should be readable and seekable");
}
readerOptions = readerOptions ?? new ReaderOptions();
if (archiveTypes.HasFlag(ArchiveTypeMask.Zip) && ZipArchive.IsZipFile(stream, null))
{
stream.Seek(0, SeekOrigin.Begin);
archive = ZipArchive.Open(stream, readerOptions);
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.SevenZip) && SevenZipArchive.IsSevenZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
archive = SevenZipArchive.Open(stream, readerOptions);
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.GZip) && GZipArchive.IsGZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
archive = GZipArchive.Open(stream, readerOptions);
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.Rar) && RarArchive.IsRarFile(stream, readerOptions))
{
stream.Seek(0, SeekOrigin.Begin);
archive = RarArchive.Open(stream, readerOptions);
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
archive = TarArchive.Open(stream, readerOptions);
return(true);
}
archive = null;
return(false);
}
public static bool isSupportedArchive(string filePath)
{
FileInfo fileInfo = new FileInfo(filePath);
try
{
using (var stream = fileInfo.OpenRead())
{
if (ZipArchive.IsZipFile(stream, null))
{
stream.Dispose();
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (SevenZipArchive.IsSevenZipFile(stream))
{
stream.Dispose();
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
stream.Dispose();
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (RarArchive.IsRarFile(stream, Options.None))
{
stream.Dispose();
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Dispose();
return(true);
}
return(false);
}
}
catch (Exception)
{
return(false);
}
}
public static bool TryOpen(FileInfo fileInfo, ReaderOptions options, ArchiveTypeMask archiveTypes, out IArchive archive)
{
fileInfo.CheckNotNull("fileInfo");
options = options ?? new ReaderOptions {
LeaveStreamOpen = false
};
using (var stream = fileInfo.OpenRead())
{
if (archiveTypes.HasFlag(ArchiveTypeMask.Zip) && ZipArchive.IsZipFile(stream, null))
{
archive = ZipArchive.Open(fileInfo, options);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.SevenZip) && SevenZipArchive.IsSevenZipFile(stream))
{
archive = SevenZipArchive.Open(fileInfo, options);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.GZip) && GZipArchive.IsGZipFile(stream))
{
archive = GZipArchive.Open(fileInfo, options);
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.Rar) && RarArchive.IsRarFile(stream, options))
{
archive = RarArchive.Open(fileInfo, options);
return(true);
}
stream.Seek(0, SeekOrigin.Begin);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(stream))
{
archive = TarArchive.Open(fileInfo, options);
return(true);
}
}
archive = null;
return(false);
}
/// <summary>
/// Opens an Archive for random access
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IArchive Open(Stream stream, Options options = Options.KeepStreamsOpen)
{
stream.CheckNotNull("stream");
if (!stream.CanRead || !stream.CanSeek)
{
throw new ArgumentException("Stream should be readable and seekable");
}
if (ZipArchive.IsZipFile(stream, null))
{
stream.Seek(0, SeekOrigin.Begin);
return(ZipArchive.Open(stream, options, null));
}
stream.Seek(0, SeekOrigin.Begin);
if (RarArchive.IsRarFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(RarArchive.Open(stream, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(TarArchive.Open(stream, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (SevenZipArchive.IsSevenZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(SevenZipArchive.Open(stream, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
stream.Seek(0, SeekOrigin.Begin);
return(GZipArchive.Open(stream, options));
}
throw new InvalidOperationException("Cannot determine compressed stream type.");
}
/// <summary>
/// Constructor with a FileInfo object to an existing file.
/// </summary>
/// <param name="fileInfo"></param>
/// <param name="options"></param>
public static IArchive Open(FileInfo fileInfo, Options options)
{
//fileInfo.CheckNotNull("fileInfo");
Utility.CheckNotNull(fileInfo, "fileInfo");
using (var stream = fileInfo.OpenRead())
{
if (ZipArchive.IsZipFile(stream, null))
{
stream.Dispose();
return(ZipArchive.Open(fileInfo, options, null));
}
stream.Seek(0, SeekOrigin.Begin);
if (TarArchive.IsTarFile(stream))
{
stream.Dispose();
return(TarArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (SevenZipArchive.IsSevenZipFile(stream))
{
stream.Dispose();
return(SevenZipArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (GZipArchive.IsGZipFile(stream))
{
stream.Dispose();
return(GZipArchive.Open(fileInfo, options));
}
stream.Seek(0, SeekOrigin.Begin);
if (RarArchive.IsRarFile(stream, Options.LookForHeader | Options.KeepStreamsOpen))
{
stream.Dispose();
return(RarArchive.Open(fileInfo, options));
}
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Archive Formats: Zip, GZip, Tar, Rar, 7Zip");
}
}
public ArchiveTypes IsArchive(string path)
{
var type = ArchiveTypes.None;
if (RarArchive.IsRarFile(path))
{
type = ArchiveTypes.RAR;
}
if (ZipArchive.IsZipFile(path))
{
type = ArchiveTypes.Zip;
}
if (SevenZipArchive.IsSevenZipFile(path))
{
type = ArchiveTypes.SevenZip;
}
if (TarArchive.IsTarFile(path))
{
type = ArchiveTypes.Deflate;
}
return(type);
}
public static IReader Open(Stream stream, Options options = 1)
{
stream.CheckNotNull("stream");
RewindableStream stream2 = new RewindableStream(stream);
stream2.StartRecording();
stream2.Rewind(false);
if (BZip2Stream.IsBZip2(stream2))
{
stream2.Rewind(false);
if (TarArchive.IsTarFile(new BZip2Stream(stream2, CompressionMode.Decompress, false, false)))
{
stream2.Rewind(true);
return(new TarReader(stream2, CompressionType.BZip2, options));
}
}
stream2.Rewind(false);
if (!TarArchive.IsTarFile(stream2))
{
throw new InvalidOperationException("Cannot determine compressed stream type.");
}
stream2.Rewind(true);
return(TarReader.Open(stream2, options));
}
/// <summary>
/// Opens a Reader for Non-seeking usage
/// </summary>
/// <param name="stream"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IReader Open(Stream stream, ReaderOptions options = null)
{
stream.CheckNotNull("stream");
options = options ?? new ReaderOptions()
{
LeaveStreamOpen = false
};
RewindableStream rewindableStream = new RewindableStream(stream);
rewindableStream.StartRecording();
if (ZipArchive.IsZipFile(rewindableStream, options.Password))
{
rewindableStream.Rewind(true);
return(ZipReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (GZipArchive.IsGZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
GZipStream testStream = new GZipStream(rewindableStream, CompressionMode.Decompress);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.GZip));
}
rewindableStream.Rewind(true);
return(GZipReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (BZip2Stream.IsBZip2(rewindableStream))
{
rewindableStream.Rewind(false);
BZip2Stream testStream = new BZip2Stream(rewindableStream, CompressionMode.Decompress, true);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.BZip2));
}
}
rewindableStream.Rewind(false);
if (LZipStream.IsLZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
LZipStream testStream = new LZipStream(rewindableStream, CompressionMode.Decompress, true);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.LZip));
}
}
rewindableStream.Rewind(false);
if (RarArchive.IsRarFile(rewindableStream, options))
{
rewindableStream.Rewind(true);
return(RarReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (TarArchive.IsTarFile(rewindableStream))
{
rewindableStream.Rewind(true);
return(TarReader.Open(rewindableStream, options));
}
rewindableStream.Rewind(false);
if (XZStream.IsXZStream(rewindableStream))
{
rewindableStream.Rewind(true);
XZStream testStream = new XZStream(rewindableStream);
if (TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
return(new TarReader(rewindableStream, options, CompressionType.Xz));
}
}
throw new InvalidOperationException("Cannot determine compressed stream type. Supported Reader Formats: Zip, GZip, BZip2, Tar, Rar, LZip, XZ");
}
public static bool isArchive(FileInfo file)
{
//FIXME This is broken and detects .gba ROMs as stuff
return(GZipArchive.IsGZipFile(file) || RarArchive.IsRarFile(file) || SevenZipArchive.IsSevenZipFile(file) ||
TarArchive.IsTarFile(file) || ZipArchive.IsZipFile(file));
}
public static bool TryOpen(Stream stream, ReaderOptions options, ArchiveTypeMask archiveTypes, out IReader reader)
{
stream.CheckNotNull("stream");
options = options ?? new ReaderOptions()
{
LeaveStreamOpen = false
};
RewindableStream rewindableStream = new RewindableStream(stream);
rewindableStream.StartRecording();
if (archiveTypes.HasFlag(ArchiveTypeMask.Zip) && ZipArchive.IsZipFile(rewindableStream, options.Password))
{
rewindableStream.Rewind(true);
reader = ZipReader.Open(rewindableStream, options);
return(true);
}
rewindableStream.Rewind(false);
if (archiveTypes.HasFlag(ArchiveTypeMask.GZip) && GZipArchive.IsGZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
GZipStream testStream = new GZipStream(rewindableStream, CompressionMode.Decompress);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
reader = new TarReader(rewindableStream, options, CompressionType.GZip);
return(true);
}
rewindableStream.Rewind(true);
reader = GZipReader.Open(rewindableStream, options);
return(true);
}
rewindableStream.Rewind(false);
if (archiveTypes.HasFlag(ArchiveTypeMask.BZip2) && BZip2Stream.IsBZip2(rewindableStream))
{
rewindableStream.Rewind(false);
BZip2Stream testStream = new BZip2Stream(new NonDisposingStream(rewindableStream), CompressionMode.Decompress, false);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
reader = new TarReader(rewindableStream, options, CompressionType.BZip2);
return(true);
}
}
rewindableStream.Rewind(false);
if (archiveTypes.HasFlag(ArchiveTypeMask.LZip) && LZipStream.IsLZipFile(rewindableStream))
{
rewindableStream.Rewind(false);
LZipStream testStream = new LZipStream(new NonDisposingStream(rewindableStream), CompressionMode.Decompress);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
reader = new TarReader(rewindableStream, options, CompressionType.LZip);
return(true);
}
}
rewindableStream.Rewind(false);
if (archiveTypes.HasFlag(ArchiveTypeMask.Rar) && RarArchive.IsRarFile(rewindableStream, options))
{
rewindableStream.Rewind(true);
reader = RarReader.Open(rewindableStream, options);
return(true);
}
rewindableStream.Rewind(false);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(rewindableStream))
{
rewindableStream.Rewind(true);
reader = TarReader.Open(rewindableStream, options);
return(true);
}
rewindableStream.Rewind(false);
if (XZStream.IsXZStream(rewindableStream))
{
rewindableStream.Rewind(true);
XZStream testStream = new XZStream(rewindableStream);
if (archiveTypes.HasFlag(ArchiveTypeMask.Tar) && TarArchive.IsTarFile(testStream))
{
rewindableStream.Rewind(true);
reader = new TarReader(rewindableStream, options, CompressionType.Xz);
return(true);
}
}
reader = null;
return(false);
}
