static void LoadXp3Enc(string filePath)
{
if (string.IsNullOrEmpty(filePath))
{
return;
}
if (File.Exists(filePath))
{
Xp3Enc.Load(filePath);
}
}
static void CreateArchive(CommandLineOptions options, LinkedList <TFileSource> sourceFiles, string outpuFile)
{
// Load encryption module
LoadXp3Enc(options.Xp3EncPath);
using (FileStream arcStream = File.Create(outpuFile))
using (BinaryWriter arcWriter = new BinaryWriter(arcStream))
{
// Write header
arcWriter.WriteBytes(new byte[] { 0x58, 0x50, 0x33, 0x0D, 0x0A, 0x20, 0x0A, 0x1A });
arcWriter.WriteBytes(new byte[] { 0x8B, 0x67, 0x01 });
arcWriter.WriteInt64(8 + 3 + 8 + 4);
arcWriter.WriteUInt32(1);
arcWriter.WriteByte(0x80);
arcWriter.WriteInt64(0);
long indexOffsetPos = arcStream.Position;
arcWriter.WriteInt64(0);
LinkedList <TFileInfo> files = new LinkedList <TFileInfo>();
long fileDataStart = arcStream.Position;
// Add protection warning file
arcWriter.WriteBytes(ProtectionWarningPng);
{
TFileSegment segm = new TFileSegment();
segm.Offset = fileDataStart + 0x30;
segm.Size = 0x9D; // ProtectionWarningPng.Length;
segm.StoreSize = 0x9D; // ProtectionWarningPng.Length;
segm.Flags = 0;
TFileInfo info = new TFileInfo();
info.Name = "$$$ This is a protected archive. $$$ 著作者はこのアーカイブが正規の利用方法以外の方法で展開されることを望んでいません。 $$$ This is a protected archive. $$$ 著作者はこのアーカイブが正規の利用方法以外の方法で展開されることを望んでいません。 $$$ This is a protected archive. $$$ 著作者はこのアーカイブが正規の利用方法以外の方法で展開されることを望んでいません。 $$$ Warning! Extracting this archive may infringe on author's rights. 警告 このアーカイブを展開することにより、あなたは著作者の権利を侵害するおそれがあります。.txt";
info.NameMd5 = Util.StringMd5(info.Name.ToLower());
info.Size = segm.Size;
info.StoreSize = segm.StoreSize;
info.Adler32 = Util.Adler32(ProtectionWarningPng);
info.Flags = 0;
info.Segments.Add(segm);
files.AddLast(info);
}
// Store file
foreach (var item in sourceFiles)
{
byte[] data = File.ReadAllBytes(item.LocalPath);
TFileSegment segm = new TFileSegment();
segm.Offset = arcStream.Position;
segm.Size = data.Length;
segm.StoreSize = data.Length;
segm.Flags = 0;
TFileInfo info = new TFileInfo();
info.Name = item.Path.Replace(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
info.NameMd5 = Util.StringMd5(info.Name.ToLower());
info.Timestamp = new DateTimeOffset(new FileInfo(item.LocalPath).LastWriteTime).ToUnixTimeMilliseconds();
info.Size = segm.Size;
info.StoreSize = segm.StoreSize;
info.Adler32 = Util.Adler32(data); // This algorithm maybe wrong.
info.Flags = (1u << 31); // protected
info.Segments.Add(segm);
files.AddLast(info);
Console.WriteLine("Storing file: {0}", info.Name);
// Encrypt file data
if (Xp3Enc.Loaded)
{
Xp3Enc.Encrypt(info.Adler32, 0, data);
}
else if (options.XorKey != null)
{
XorEncrypt(data, (byte)options.XorKey);
}
// Store to archive
arcWriter.WriteBytes(data);
}
// Build index
Console.WriteLine("Building index...");
MemoryStream indexStream = new MemoryStream();
BinaryWriter indexWriter = new BinaryWriter(indexStream);
foreach (var item in files)
{
new ChunkWriter(indexWriter, "hnfn").Write(hnfnWriter => {
hnfnWriter.WriteUInt32(item.Adler32);
hnfnWriter.WriteUnicodeString(item.Name);
});
}
foreach (var item in files)
{
new ChunkWriter(indexWriter, "File").Write(fileWriter => {
if (item.Timestamp != 0)
{
new ChunkWriter(indexWriter, "time").Write(timeWriter => {
timeWriter.WriteInt64(item.Timestamp);
});
}
new ChunkWriter(indexWriter, "adlr").Write(adlrWriter => {
adlrWriter.WriteUInt32(item.Adler32);
});
new ChunkWriter(indexWriter, "segm").Write(segmWriter => {
foreach (var segm in item.Segments)
{
segmWriter.WriteUInt32(segm.Flags);
segmWriter.WriteInt64(segm.Offset);
segmWriter.WriteInt64(segm.Size);
segmWriter.WriteInt64(segm.StoreSize);
}
});
new ChunkWriter(indexWriter, "info").Write(infoWriter => {
infoWriter.WriteUInt32(item.Flags);
infoWriter.WriteInt64(item.Size);
infoWriter.WriteInt64(item.StoreSize);
infoWriter.WriteUnicodeString(item.NameMd5);
});
});
}
// Compress index
byte[] indexData = indexStream.ToArray();
byte[] compressedIndexData = Util.Deflate(indexData);
// Write index
long indexOffset = arcStream.Position;
arcWriter.WriteByte(1); // compressed
arcWriter.WriteInt64(compressedIndexData.Length);
arcWriter.WriteInt64(indexData.Length);
arcWriter.WriteBytes(compressedIndexData);
arcStream.Position = indexOffsetPos;
arcWriter.WriteInt64(indexOffset);
// Done
arcWriter.Flush();
arcWriter.Close();
Console.WriteLine("Done.");
}
}