public ZipArchive(
Stream stream,
ZipArchiveMode mode,
bool leaveOpen,
Encoding entryNameEncoding,
CompressionSettings compressionSettings,
EncryptionSettings encryptionSettings)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
this.EntryNameEncoding = entryNameEncoding;
if (compressionSettings == null)
{
compressionSettings = (CompressionSettings) new DeflateSettings()
{
HeaderType = CompressedStreamHeader.None
}
}
;
this.CompressionSettings = compressionSettings;
this.CompressionSettings.PrepareForZip((CentralDirectoryHeader)null);
this.EncryptionSettings = encryptionSettings;
this.Init(stream, mode, leaveOpen);
}
~ZipArchive()
{
this.Dispose(false);
}
internal ZipArchiveEntry(ZipArchive archive, string entryName, CompressionSettings settings)
: this(archive, entryName)
{
this.settings = settings;
this.settings.PrepareForZip((CentralDirectoryHeader)null);
this.CompressionMethod = settings.Method;
}
internal static CompressionSettings GetCompressionSettings(
CompressionMethod method,
CompressionSettings baseSettings)
{
CompressionSettings compressionSettings;
switch (method)
{
case CompressionMethod.Stored:
compressionSettings = (CompressionSettings) new StoreSettings();
break;
case CompressionMethod.Deflate:
compressionSettings = (CompressionSettings) new DeflateSettings();
break;
case CompressionMethod.Lzma:
compressionSettings = (CompressionSettings) new LzmaSettings();
break;
default:
throw new NotSupportedException(string.Format("Compression method {0} is not supported.", (object)method));
}
if (baseSettings != null && (object)compressionSettings.GetType() == (object)baseSettings.GetType())
{
compressionSettings.CopyFrom(baseSettings);
}
return(compressionSettings);
}
internal static ICompressionAlgorithm GetCompressionAlgorithm(
CompressionSettings settings)
{
ICompressionAlgorithm compressionAlgorithm;
switch (settings.Method)
{
case CompressionMethod.Stored:
compressionAlgorithm = (ICompressionAlgorithm) new StoreAlgorithm();
break;
case CompressionMethod.Deflate:
compressionAlgorithm = (ICompressionAlgorithm) new DeflateAlgorithm();
break;
case CompressionMethod.Lzma:
compressionAlgorithm = (ICompressionAlgorithm) new LzmaAlgorithm();
break;
default:
throw new NotSupportedException(string.Format("Compression method {0} is not supported.", (object)settings));
}
compressionAlgorithm?.Initialize(settings);
return(compressionAlgorithm);
}
public CompressedStream(
Stream baseStream,
StreamOperationMode mode,
CompressionSettings settings)
: this(baseStream, mode, settings, true, (EncryptionSettings)null)
{
}
public void Initialize(CompressionSettings settings)
{
this.deflateSettings = settings as DeflateSettings;
if (this.deflateSettings == null)
{
throw new ArgumentException("Wrong settings type.");
}
}
internal ZipArchiveEntry(ZipArchive archive, CentralDirectoryHeader header)
{
this.Archive = archive;
this.header = header;
this.settings = ZipHelper.GetCompressionSettings((CompressionMethod)this.header.CompressionMethod, this.Archive.CompressionSettings);
this.settings.PrepareForZip((CentralDirectoryHeader)null);
this.existedInArchive = true;
}
public ZipArchiveEntry CreateEntry(
string entryName,
CompressionSettings settings)
{
ZipArchiveEntry zipArchiveEntry = new ZipArchiveEntry(this, entryName, settings);
this.entries.Add(zipArchiveEntry.FullName, zipArchiveEntry);
return(zipArchiveEntry);
}
public CompressedStream(
Stream baseStream,
StreamOperationMode mode,
CompressionSettings settings,
bool useCrc32,
EncryptionSettings encryptionSettings)
: base(baseStream, mode)
{
baseStream = encryptionSettings != null ? (Stream) new CryptoStream(baseStream, mode, PlatformSettings.Manager.GetCryptoProvider(encryptionSettings)) : baseStream;
ICompressionAlgorithm compressionAlgorithm = ZipHelper.GetCompressionAlgorithm(settings);
IChecksumAlgorithm checksumAlgorithm = useCrc32 ? (IChecksumAlgorithm) new Crc32() : (IChecksumAlgorithm) new Adler32();
this.Initialize(baseStream, compressionAlgorithm, checksumAlgorithm);
}
internal ZipArchiveEntry(ZipArchive archive, string entryName)
{
this.Archive = archive;
this.settings = this.Archive.CompressionSettings;
this.header = new CentralDirectoryHeader();
this.header.VersionNeededToExtract = (ushort)10;
this.header.GeneralPurposeBitFlag = (ushort)8;
if (this.Archive.EncryptionSettings is DefaultEncryptionSettings)
{
this.header.GeneralPurposeBitFlag |= (ushort)1;
this.ValidateVersionNeeded(VersionNeededToExtract.Deflate);
}
this.FullName = entryName;
this.LastWriteTime = DateTimeOffset.Now;
}
internal virtual void CopyFrom(CompressionSettings baseSettings)
{
}