public static ArchiveExtractor Create([NotNull] Stream stream, [NotNull] string target, [CanBeNull] string mimeType)
{
#region Sanity checks
if (stream == null) throw new ArgumentNullException(nameof(stream));
if (string.IsNullOrEmpty(target)) throw new ArgumentNullException(nameof(target));
#endregion
ArchiveExtractor extractor;
switch (mimeType)
{
case Archive.MimeTypeZip:
extractor = new ZipExtractor(stream, target);
break;
case Archive.MimeTypeTar:
extractor = new TarExtractor(stream, target);
break;
case Archive.MimeTypeTarGzip:
extractor = new TarGzExtractor(stream, target);
break;
case Archive.MimeTypeTarBzip:
extractor = new TarBz2Extractor(stream, target);
break;
case Archive.MimeTypeTarLzma:
extractor = new TarLzmaExtractor(stream, target);
break;
case Archive.MimeTypeTarXz:
extractor = new TarXzExtractor(stream, target);
break;
case Archive.MimeTypeRubyGem:
extractor = new RubyGemExtractor(stream, target);
break;
case Archive.MimeType7Z:
extractor = new SevenZipExtractor(stream, target);
break;
case Archive.MimeTypeCab:
extractor = new CabExtractor(stream, target);
break;
case Archive.MimeTypeMsi:
throw new NotSupportedException("MSIs can only be accessed as local files, not as streams!");
default:
throw new NotSupportedException(string.Format(Resources.UnsupportedArchiveMimeType, mimeType));
}
return extractor;
}
public void TestRejectParentDirectoryEntry()
{
var builder = new PackageBuilder();
builder.AddFolder("..");
using (var archiveStream = File.Create(Path.Combine(_sandbox, "ar.zip")))
{
builder.GeneratePackageArchive(archiveStream);
archiveStream.Seek(0, SeekOrigin.Begin);
using (var extractor = new ZipExtractor(archiveStream, _sandbox))
extractor.Invoking(x => x.Run()).ShouldThrow<IOException>(because: "ZipExtractor must not accept archives with '..' as entry");
}
}
public void TestExtractToCustomDestination()
{
var builder = new PackageBuilder()
.AddFile("emptyFile", new byte[] {});
using (var archiveStream = File.Create(Path.Combine(_sandbox, "ar.zip")))
{
builder.GeneratePackageArchive(archiveStream);
archiveStream.Seek(0, SeekOrigin.Begin);
const string message = "ZipExtractor should correctly extract empty files in an archive to custom destination";
using (var extractor = new ZipExtractor(archiveStream, _sandbox) {Destination = "custom"})
extractor.Invoking(x => x.Run()).ShouldNotThrow();
File.Exists(Path.Combine(_sandbox, "custom", "emptyFile")).Should().BeTrue(because: message);
File.ReadAllBytes(Path.Combine(_sandbox, "custom", "emptyFile")).Should().BeEmpty(because: message);
}
}
public void TestExtractUnixArchiveWithSymlink()
{
using (var extractor = new ZipExtractor(typeof(ZipExtractorTest).GetEmbeddedStream("testArchive.zip"), _sandbox))
extractor.Run();
string target;
string source = Path.Combine(_sandbox, "symlink");
if (UnixUtils.IsUnix) FileUtils.IsSymlink(source, out target).Should().BeTrue();
else CygwinUtils.IsSymlink(source, out target).Should().BeTrue();
target.Should().Be("subdir1/regular", because: "Symlink should point to 'regular'");
}
public void TestExtractUnixArchiveWithExecutable()
{
using (var extractor = new ZipExtractor(typeof(ZipExtractorTest).GetEmbeddedStream("testArchive.zip"), _sandbox))
extractor.Run();
if (UnixUtils.IsUnix)
FileUtils.IsExecutable(Path.Combine(_sandbox, "subdir2/executable")).Should().BeTrue(because: "File 'executable' should be marked as executable");
else
{
string xbitFileContent = File.ReadAllText(Path.Combine(_sandbox, FlagUtils.XbitFile)).Trim();
xbitFileContent.Should().Be("/subdir2/executable");
}
}
public void TestExtractUnixArchiveWithSymlink()
{
using (var extractor = new ZipExtractor(this.GetEmbedded("testArchive.zip"), _sandbox))
extractor.Run();
string target;
if (UnixUtils.IsUnix)
Assert.IsTrue(FileUtils.IsSymlink(Path.Combine(_sandbox, "symlink"), out target));
else
{
string symlinkFileContent = File.ReadAllText(Path.Combine(_sandbox, FlagUtils.SymlinkFile)).Trim();
Assert.AreEqual("/symlink", symlinkFileContent);
target = File.ReadAllText(Path.Combine(_sandbox, "symlink"));
}
Assert.AreEqual("subdir1/regular", target, "Symlink should point to 'regular'");
}
public void TestExtractUnixArchiveWithExecutable()
{
using (var extractor = new ZipExtractor(this.GetEmbedded("testArchive.zip"), _sandbox))
extractor.Run();
if (UnixUtils.IsUnix)
Assert.IsTrue(FileUtils.IsExecutable(Path.Combine(_sandbox, "subdir2/executable")), "File 'executable' should be marked as executable");
else
{
string xbitFileContent = File.ReadAllText(Path.Combine(_sandbox, FlagUtils.XbitFile)).Trim();
Assert.AreEqual("/subdir2/executable", xbitFileContent);
}
}
public void TestExtractToCustomDestination()
{
var builder = new PackageBuilder()
.AddFile("emptyFile", new byte[] {});
using (var archiveStream = File.Create(Path.Combine(_sandbox, "ar.zip")))
{
builder.GeneratePackageArchive(archiveStream);
archiveStream.Seek(0, SeekOrigin.Begin);
const string message = "ZipExtractor should correctly extract empty files in an archive to custom destination";
using (var extractor = new ZipExtractor(archiveStream, _sandbox) {Destination = "custom"})
Assert.DoesNotThrow(() => extractor.Run());
Assert.IsTrue(File.Exists(new[] {_sandbox, "custom", "emptyFile"}.Aggregate(Path.Combine)), message);
Assert.AreEqual(new byte[] {}, File.ReadAllBytes(new[] {_sandbox, "custom", "emptyFile"}.Aggregate(Path.Combine)), message);
}
}
