public static FObjectImport ReadEntry(IOMemoryStream ms, UassetFile f)
{
//Read in
FObjectImport g = new FObjectImport();
g.startPos = ms.position;
g.coreType = ms.ReadNameTableEntry(f);
g.unknown1 = ms.ReadInt();
g.objectType = ms.ReadNameTableEntry(f);
g.unknown2 = ms.ReadInt();
g.index = ms.ReadInt();
g.name = ms.ReadNameTableEntry(f);
g.unknown4 = ms.ReadInt();
return(g);
}
public UassetFile(byte[] data, string fullPath)
{
Fullpath = fullPath;
Filename = Path.GetFileNameWithoutExtension(Fullpath);
//Create a stream
stream = new IOMemoryStream(new MemoryStream(data), true);
stream.position = 0;
var signature = stream.ReadUInt();
// Check for the file's signature.
if (signature != UNREAL_ASSET_MAGIC)
{
TKContext.LogError("The file provided is not a valid uasset file.");
return;
}
Version = stream.ReadUInt();
stream.ReadBytes(0x10);
UnkOffset = stream.ReadInt();
stream.ReadInt();
PackageGroup = Encoding.ASCII.GetString(stream.ReadBytes(0x4));
stream.ReadBytes(0x1);
PackageFlags = stream.ReadUInt();
NamesCount = stream.ReadInt();
NamesOffset = stream.ReadInt();
stream.ReadBytes(0x8);
ExportsCount = stream.ReadInt();
ExportsOffset = stream.ReadInt();
ImportsCount = stream.ReadInt();
ImportsOffset = stream.ReadInt();
stream.ReadBytes(0x8);
UnkOffset2 = stream.ReadInt();
stream.ReadBytes(0x1C);
NamesCount2 = stream.ReadInt();
stream.ReadBytes(0x2C);
UnkOffset3 = stream.ReadInt();
EndOfFileOffset = stream.ReadInt();
stream.ReadBytes(0x10);
UnkOffset4 = stream.ReadInt();
stream.position = NamesOffset;
NamesTable = stream.ReadFNameEntries(NamesCount, UE4Version.UE4__4_14);
for (int i = 0; i < NamesCount; i++)
{
TKContext.DebugLog("UassetFile", $"Name Table Entry {i}", NamesTable[i].Name, ConsoleColor.Yellow);
}
TKContext.LogInner("INFO", $"Uasset names count is {NamesCount}");
//Starts directly after the name table. Assume we're already there
ImportsTable = new FObjectImport[ImportsCount];
for (int i = 0; i < ImportsCount; i++)
{
FObjectImport h = FObjectImport.ReadEntry(stream, this);
ImportsTable[i] = h;
DebugDump($"FObjectImport {i} @ {h.startPos}", ConsoleColor.Blue, "cType", h.coreType, "u1", h.unknown1.ToString(), "oType", h.objectType, "u2", h.unknown2.ToString(), "i", h.index.ToString(), "name", h.name, "u4", h.unknown4.ToString());
}
TKContext.LogInner("INFO", $"Uasset import table size is {ImportsCount}");
//Starts directly after the referenced GameObject table. Assume we're already there
ExportsTable = new FObjectExport[ExportsCount];
for (int i = 0; i < ExportsCount; i++)
{
ExportsTable[i] = FObjectExport.ReadEntry(stream, this);
DebugDump($"FObjectExport {i} @ {ExportsTable[i].entryLocation}", ConsoleColor.Magenta, "id", ExportsTable[i].id.ToString(), "u2", ExportsTable[i].unknown2.ToString(),
"u3", ExportsTable[i].unknown3.ToString(), "type", ExportsTable[i].type, "u4", ExportsTable[i].unknown4.ToString(), "u5", ExportsTable[i].unknown5.ToString(),
"length", ExportsTable[i].dataLength.ToString(), "location", ExportsTable[i].dataLocation.ToString(), "u6", ExportsTable[i].unknown6.ToString(), "u7",
ExportsTable[i].unknown7.ToString(), "u8", ExportsTable[i].unknown8.ToString(), "u9", ExportsTable[i].unknown9.ToString(), "u10", ExportsTable[i].unknown10.ToString(), "u11", ExportsTable[i].unknown11.ToString(),
"u12", ExportsTable[i].unknown12.ToString(), "u13", ExportsTable[i].unknown13.ToString(), "u14", ExportsTable[i].unknown14.ToString(), "u15", ExportsTable[i].unknown15.ToString(),
"u16", ExportsTable[i].unknown16.ToString(), "u17", ExportsTable[i].unknown17.ToString(), "u18", ExportsTable[i].unknown18.ToString(), "u19", ExportsTable[i].unknown19.ToString(),
"u20", ExportsTable[i].unknown20.ToString(), "u21", ExportsTable[i].unknown21.ToString(), "u22", ExportsTable[i].unknown22.ToString());
}
TKContext.LogInner("INFO", $"Uasset export table size is {ExportsCount}");
using (MemoryStream ms = new MemoryStream())
{
stream.position = 0;
stream.ms.CopyTo(ms);
stream.Close();
FileData = ms.ToArray();
}
}
