public ArchiveDirectory CreateDirectories(string dirPath)
{
ArchiveDirectory dir = null;
foreach (string dirName in dirPath.Split('/'))
{
var data = (dir == null) ? Data : dir.Data;
if (data.Exists(t => t.Name == dirName))
{
dir = data.Find(t => t.Name == dirName) as ArchiveDirectory;
}
else if (dir == null)
{
var directory = new ArchiveDirectory(dirName);
Data.Add(directory);
dir = directory;
}
else
{
var newDirectory = new ArchiveDirectory(dirName);
dir.Data.Add(newDirectory);
newDirectory.Parent = dir;
dir = newDirectory;
}
}
return(dir);
}
public override void Load(Stream fileStream)
{
// Header
var reader = new ExtendedBinaryReader(fileStream, true);
var entries = new List <FileEntry>();
uint sig = reader.ReadUInt32();
if (sig != Signature)
{
throw new InvalidSignatureException(
Signature.ToString("X"), sig.ToString("X"));
}
uint fileTableOffset = reader.ReadUInt32();
uint fileTableLength = reader.ReadUInt32();
uint fileDataOffset = reader.ReadUInt32();
uint unknown5 = reader.ReadUInt32();
uint unknown6 = reader.ReadUInt32();
uint unknown7 = reader.ReadUInt32();
uint unknown8 = reader.ReadUInt32();
// File/Directory Entries
long fileTableEnd = (fileTableOffset + fileTableLength);
reader.JumpTo(fileTableOffset);
while (fileStream.Position < fileTableEnd)
{
bool isDirectory = reader.ReadBoolean();
byte padding1 = reader.ReadByte();
if (padding1 != 0)
{
fileStream.Position -= 2; // go bacc
break;
}
var fileEntry = new FileEntry()
{
IsDirectory = isDirectory,
FileNameOffset = reader.ReadUInt16(),
DataOffset = reader.ReadUInt32(),
DataLength = reader.ReadUInt32(),
DataUncompressedSize = reader.ReadUInt32()
};
entries.Add(fileEntry);
}
// Entry Names
uint fileNamesOffset = (uint)fileStream.Position;
foreach (var entry in entries)
{
reader.JumpTo(fileNamesOffset + entry.FileNameOffset);
entry.Name = reader.ReadNullTerminatedString();
}
// Entry Data
ArchiveDirectory dir = null;
for (int i = 0; i < entries.Count; ++i)
{
var entry = entries[i];
// Directory
if (entry.IsDirectory)
{
// Generate a HedgeLib directory entry
if (i == 0)
{
continue;
}
if (entry.DataOffset >= i)
{
throw new Exception("Entry DataOffset is invalid");
}
var dirEntry = new ArchiveDirectory(entry.Name);
if (entry.DataOffset != 0)
{
var parentEntry = entries[(int)entry.DataOffset];
dirEntry.Parent = parentEntry.Directory;
}
if (dirEntry.Parent == null)
{
Data.Add(dirEntry);
}
else
{
dirEntry.Parent.Data.Add(dirEntry);
}
dir = entry.Directory = dirEntry;
}
// File
else
{
if (dir == null)
{
throw new Exception("Tried to read a file not in a directory!");
}
var data = new byte[entry.DataUncompressedSize];
int offset = 0, size = (int)entry.DataUncompressedSize;
reader.JumpTo(entry.DataOffset + 2);
using (var gzipStream = new DeflateStream(fileStream,
CompressionMode.Decompress, true))
{
while (offset < size)
{
offset += gzipStream.Read(data,
offset, (size - offset));
}
}
// Generate a HedgeLib file entry
dir.Data.Add(new ArchiveFile(entry.Name, data));
}
}
}
