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using System.IO;
namespace SharpCompress.Common.Zip.Headers
{
internal enum ExtraDataType : ushort
{
WinZipAes = 0x9901,
}
internal class ExtraData
{
internal ExtraDataType Type { get; set; }
internal ushort Length { get; set; }
internal byte[] DataBytes { get; set; }
}
internal class LocalEntryHeader : ZipFileEntry
{
public LocalEntryHeader()
: base(ZipHeaderType.LocalEntry)
{
}
internal override void Read(BinaryReader reader)
{
Version = reader.ReadUInt16();
Flags = (HeaderFlags) reader.ReadUInt16();
CompressionMethod = (ZipCompressionMethod) reader.ReadUInt16();
LastModifiedTime = reader.ReadUInt16();
LastModifiedDate = reader.ReadUInt16();
Crc = reader.ReadUInt32();
CompressedSize = reader.ReadUInt32();
UncompressedSize = reader.ReadUInt32();
ushort nameLength = reader.ReadUInt16();
ushort extraLength = reader.ReadUInt16();
byte[] name = reader.ReadBytes(nameLength);
byte[] extra = reader.ReadBytes(extraLength);
Name = DecodeString(name);
LoadExtra(extra);
}
internal override void Write(BinaryWriter writer)
{
writer.Write(Version);
writer.Write((ushort) Flags);
writer.Write((ushort) CompressionMethod);
writer.Write(LastModifiedTime);
writer.Write(LastModifiedDate);
writer.Write(Crc);
writer.Write(CompressedSize);
writer.Write(UncompressedSize);
byte[] nameBytes = EncodeString(Name);
writer.Write((ushort) nameBytes.Length);
writer.Write((ushort) 0);
//if (Extra != null)
//{
// writer.Write(Extra);
//}
writer.Write(nameBytes);
}
internal ushort Version { get; private set; }
}
}
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