public void LoadEntries(DataFile file, IndexEntry indexEntry)
{
var list = new List<RootEntry>();
var blteEntry = new BinaryReader(DataFile.LoadBLTEEntry(indexEntry, file.readStream));
while (blteEntry.BaseStream.Position < blteEntry.BaseStream.Length)
{
var entries = new RootEntry[blteEntry.ReadInt32()];
blteEntry.BaseStream.Position += 4;
var locales = (Locales)blteEntry.ReadUInt32();
blteEntry.BaseStream.Position += (entries.Length << 2);
for (var i = 0; i < entries.Length; i++)
{
list.Add(new RootEntry
{
MD5 = blteEntry.ReadBytes(16),
Hash = blteEntry.ReadUInt64(),
Locales = locales
});
}
}
entries = list.ToLookup(re => re.Hash);
}
public void LoadEntries(DataFile file, IndexEntry indexEntry)
{
var blteEntry = new BinaryReader(DataFile.LoadBLTEEntry(indexEntry, file.readStream));
blteEntry.BaseStream.Position = 9;
var entries = blteEntry.ReadBEUInt32();
blteEntry.BaseStream.Position += 5;
var offsetEntries = blteEntry.ReadBEUInt32();
blteEntry.BaseStream.Position += offsetEntries + (entries << 5);
for (var i = 0; i < entries; i++)
{
var keys = blteEntry.ReadUInt16();
while (keys != 0)
{
var encodingEntry = new EncodingEntry
{
Keys = new byte[keys][],
Size = blteEntry.ReadBEUInt32()
};
var md5 = blteEntry.ReadBytes(16);
for (var j = 0; j < keys; j++)
encodingEntry.Keys[j] = blteEntry.ReadBytes(16);
this.entries.Add(md5, encodingEntry);
keys = blteEntry.ReadUInt16();
}
while (blteEntry.ReadByte() == 0);
blteEntry.BaseStream.Position -= 1;
}
}
public IndexFile(string idx, bool cdnIndex = false, ushort fileIndex = 0)
{
if (cdnIndex)
{
var nullHash = new byte[16];
using (var br = new BinaryReader(File.OpenRead(idx)))
{
br.BaseStream.Position = br.BaseStream.Length - 12;
var entries = br.ReadUInt32();
br.BaseStream.Position = 0;
for (var i = 0; i < entries; i++)
{
var hash = br.ReadBytes(16);
if (hash.Compare(nullHash))
hash = br.ReadBytes(16);
var entry = new IndexEntry
{
Index = fileIndex,
Size = br.ReadBEUInt32(),
Offset = br.ReadBEUInt32()
};
if (this.entries.ContainsKey(hash))
continue;
this.entries.Add(hash, entry);
}
}
}
else
{
using (var br = new BinaryReader(File.OpenRead(idx)))
{
br.BaseStream.Position = 0x20;
var dataLength = br.ReadUInt32();
br.BaseStream.Position += 4;
// 18 bytes per entry.
for (var i = 0; i < dataLength / 18; i++)
{
var hash = br.ReadBytes(9);
var index = br.ReadByte();
var offset = br.ReadBEUInt32();
var entry = new IndexEntry();
entry.Size = br.ReadUInt32();
entry.Index = (ushort)((ushort)(index << 2) | (offset >> 30));
entry.Offset = (uint)(offset & 0x3FFFFFFF);
if (entries.ContainsKey(hash))
continue;
entries.Add(hash, entry);
}
}
}
}
public static MemoryStream LoadBLTEEntry(IndexEntry idxEntry, BinaryReader readStream = null)
{
lock (readLock)
{
if (readStream == null)
return null;
readStream.BaseStream.Position = idxEntry.Offset + 30;
if (readStream.ReadUInt32() != 0x45544C42)
{
Trace.TraceError($"data.{idxEntry.Index:000}: Invalid BLTE signature at 0x{readStream.BaseStream.Position:X8}.");
return null;
}
var blte = new BLTEEntry();
var frameHeaderLength = readStream.ReadBEUInt32();
var chunks = 0u;
var size = 0L;
if (frameHeaderLength == 0)
{
chunks = 1;
size = idxEntry.Size - 38;
}
else
{
readStream.BaseStream.Position += 1;
chunks = readStream.ReadUInt24();
}
blte.Chunks = new BLTEChunk[chunks];
for (var i = 0; i < chunks; i++)
{
if (frameHeaderLength == 0)
{
blte.Chunks[i].CompressedSize = size;
blte.Chunks[i].UncompressedSize = size - 1;
}
else
{
blte.Chunks[i].CompressedSize = readStream.ReadBEUInt32();
blte.Chunks[i].UncompressedSize = readStream.ReadBEUInt32();
// Skip MD5 hash
readStream.BaseStream.Position += 16;
}
}
var data = new MemoryStream();
for (var i = 0; i < chunks; i++)
{
var formatCode = readStream.ReadByte();
var dataBytes = readStream.ReadBytes((int)blte.Chunks[i].CompressedSize - 1);
// Not compressed
if (formatCode == 0x4E)
data.Write(dataBytes, 0, (int)blte.Chunks[i].UncompressedSize);
// Compressed
else if (formatCode == 0x5A)
{
using (var decompressed = new MemoryStream())
{
using (var inflate = new DeflateStream(new MemoryStream(dataBytes, 2, dataBytes.Length - 2), CompressionMode.Decompress))
inflate.CopyTo(decompressed);
var inflateData = decompressed.ToArray();
data.Write(inflateData, 0, inflateData.Length);
}
}
}
data.Position = 0;
return data;
}
}
public BinaryReader DownloadFile(string archive, IndexEntry indexEntry)
{
var url = $"http://{DownloadUrl}/data/{archive.GetHexAt(0)}/{archive.GetHexAt(2)}/{archive}.index";
throw new NotImplementedException("CDNConfig.DownloadFile not implemented.");
}
