94 lines
2.7 KiB
C#
94 lines
2.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace SharpCompress.Common.Zip.Headers
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{
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internal abstract class ZipFileEntry : ZipHeader
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{
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protected ZipFileEntry(ZipHeaderType type)
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: base(type)
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{
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Extra = new List<ExtraData>();
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}
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internal bool IsDirectory
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{
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get { return Name.EndsWith("/"); }
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}
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protected string DecodeString(byte[] str)
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{
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if (FlagUtility.HasFlag(Flags, HeaderFlags.UTF8))
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{
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return Encoding.UTF8.GetString(str, 0, str.Length);
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}
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return ArchiveEncoding.Default.GetString(str, 0, str.Length);
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}
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protected byte[] EncodeString(string str)
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{
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if (FlagUtility.HasFlag(Flags, HeaderFlags.UTF8))
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{
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return Encoding.UTF8.GetBytes(str);
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}
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return ArchiveEncoding.Default.GetBytes(str);
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}
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internal Stream PackedStream { get; set; }
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internal string Name { get; set; }
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internal HeaderFlags Flags { get; set; }
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internal ZipCompressionMethod CompressionMethod { get; set; }
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internal uint CompressedSize { get; set; }
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internal long? DataStartPosition { get; set; }
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internal uint UncompressedSize { get; set; }
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internal List<ExtraData> Extra { get; set; }
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internal PkwareTraditionalEncryptionData PkwareTraditionalEncryptionData { get; set; }
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#if !PORTABLE && !NETFX_CORE
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internal WinzipAesEncryptionData WinzipAesEncryptionData { get; set; }
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#endif
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internal ushort LastModifiedDate { get; set; }
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internal ushort LastModifiedTime { get; set; }
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internal uint Crc { get; set; }
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protected void LoadExtra(byte[] extra)
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{
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if (extra.Length % 2 != 0)
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return;
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for (int i = 0; i < extra.Length;)
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{
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ExtraDataType type = (ExtraDataType) BitConverter.ToUInt16(extra, i);
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if (!Enum.IsDefined(typeof (ExtraDataType), type))
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{
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return;
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}
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ushort length = BitConverter.ToUInt16(extra, i + 2);
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byte[] data = new byte[length];
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Buffer.BlockCopy(extra, i + 4, data, 0, length);
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Extra.Add(new ExtraData
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{
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Type = type,
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Length = length,
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DataBytes = data
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});
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i += length + 4;
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}
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}
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internal ZipFilePart Part { get; set; }
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}
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} |