internal static Stream GetPayloadStream(Stream stream)
{
using (ArFile archive = new ArFile(stream, leaveOpen: true))
{
while (archive.Read())
{
if (archive.FileName.StartsWith("data.tar."))
{
var ext = Path.GetExtension(archive.FileName);
if (ext == ".gz")
{
return(new GZipDecompressor(archive.Open(), false));
}
if (ext == ".xz")
{
// For some reason it complains about corrupted data when we try to read using smaller chunks
var payload = new MemoryStream();
using (var xz = new XZInputStream(archive.Open()))
{
xz.CopyTo(payload);
payload.Seek(0, SeekOrigin.Begin);
return(payload);
}
}
throw new InvalidDataException("Don't know how to decompress " + archive.FileName);
}
}
throw new InvalidDataException("data.tar.?? not found");
}
}
public void ReadTarFileTest()
{
using (Stream stream = File.OpenRead("Deb/libplist3_1.12-3.1_amd64.deb"))
using (ArFile arFile = new ArFile(stream, leaveOpen: true))
{
// Skip the debian version
arFile.Read();
// This is the tar file
arFile.Read();
Collection <string> filenames = new Collection <string>();
Collection <string> contents = new Collection <string>();
Collection <TarHeader> headers = new Collection <TarHeader>();
using (Stream entryStream = arFile.Open())
using (GZipDecompressor decompressedStream = new GZipDecompressor(entryStream, leaveOpen: true))
using (TarFile tarFile = new TarFile(decompressedStream, leaveOpen: true))
{
while (tarFile.Read())
{
filenames.Add(tarFile.FileName);
headers.Add((TarHeader)tarFile.FileHeader);
using (Stream data = tarFile.Open())
using (StreamReader reader = new StreamReader(data))
{
contents.Add(reader.ReadToEnd());
}
}
}
}
}
/// <summary>
/// Reads and parses the <c>debian-binary</c> file in the Debian archive.
/// </summary>
/// <param name="archive">
/// The archive to update with the data read from the <c>debian-binary</c> file.
/// </param>
/// <param name="package">
/// The package to update.
/// </param>
private static void ReadDebianBinary(ArFile archive, DebPackage package)
{
using (Stream stream = archive.Open())
using (StreamReader reader = new StreamReader(stream))
{
var content = reader.ReadToEnd();
package.PackageFormatVersion = new Version(content);
}
}
public void WriteTest()
{
using (Stream original = File.OpenRead("Deb/libplist3_1.12-3.1_amd64.deb"))
using (Stream expected = File.OpenRead("Deb/libplist3_1.12-3.1_amd64.deb"))
using (Stream actual = new MemoryStream())
using (Stream output = new ValidatingCompositeStream(null, actual, expected))
{
ArFileCreator.WriteMagic(output);
var input = new ArFile(original, true);
while (input.Read())
{
var header = (ArHeader)input.FileHeader;
var clone = this.CloneHeader(header);
this.AssertCompareClonedHeader(header, clone);
using (var data = input.Open())
{
ArFileCreator.WriteEntry(output, clone, data);
}
}
}
}
private static async Task ReadControlArchive(ArFile archive, DebPackage package)
{
package.ControlExtras = new Dictionary <string, DebPackageControlFileData>();
package.Md5Sums = new Dictionary <string, string>();
using (Stream stream = archive.Open())
using (GZipDecompressor decompressedStream = new GZipDecompressor(stream, leaveOpen: true))
using (TarFile tarFile = new TarFile(decompressedStream, leaveOpen: true))
{
while (tarFile.Read())
{
switch (tarFile.FileName)
{
case "./control":
case "control":
using (Stream controlFile = tarFile.Open())
{
package.ControlFile = ControlFileParser.Read(controlFile);
}
break;
case "./md5sums":
using (var sums = new StreamReader(tarFile.Open()))
{
string line;
while ((line = await sums.ReadLineAsync()) != null)
{
var s = line.Split(new[] { " " }, 2, StringSplitOptions.None);
package.Md5Sums[s[1]] = s[0];
}
}
break;
case "./preinst":
package.PreInstallScript = tarFile.ReadAsUtf8String();
break;
case "./postinst":
package.PostInstallScript = tarFile.ReadAsUtf8String();
break;
case "./prerm":
package.PreRemoveScript = tarFile.ReadAsUtf8String();
break;
case "./postrm":
package.PostRemoveScript = tarFile.ReadAsUtf8String();
break;
case "./":
tarFile.Skip();
break;
default:
package.ControlExtras[tarFile.FileName] = new DebPackageControlFileData
{
Mode = tarFile.FileHeader.FileMode,
Contents = tarFile.ReadAsUtf8String()
};
break;
}
}
}
}