public static bool TryGetDataFromURL(string url, out string output)
{
try
{
WebClient wc = new System.Net.WebClient();
byte[] raw = wc.DownloadData(url);
output = Encoding.UTF8.GetString(raw);
return(true);
}
catch (Exception ex)
{
output = "";
TKContext.LogException(ex.ToString());
return(false);
}
}
public static UTexture2D GetTextureFromUAsset(UassetFile uassetFile)
{
/*if (uassetFile.UE4Version != UE4Version.UE4__4_14)
* throw new NotSupportedException($"Texture extraction from {uassetFile.UE4Version.ToString()} uasset files is not supported.");*/
TKContext.LogInner("INFO", $"Attempting to get a texture from file {uassetFile.Filename}");
try
{
FObjectExport export = uassetFile.ExportsTable[0];
EPixelFormat ePixelFormat = EPixelFormat.PF_Unknown;
int pfOffset = 0x0;
// TODO: Simplify this mess.
for (int i = 0; i < uassetFile.NamesTable.Length; i++)
{
if (uassetFile.NamesTable[i].Name.ToUpper().StartsWith("PF_"))
{
if (!Enum.TryParse(uassetFile.NamesTable[i].Name, out ePixelFormat))
{
TKContext.LogError("Pixel Format is not supported.");
return(null);
}
}
}
UTexture2D uTexture2D = new UTexture2D();
//uTexture2D.USerializedData = uSerializedData;
uTexture2D.UassetFile = uassetFile;
TKContext.LogInner("INFO", $"Attempting to find {ePixelFormat.ToString()}");
pfOffset = ArrayExtensions.IndexOfPattern(export.data, Encoding.ASCII.GetBytes(ePixelFormat.ToString()));
TKContext.LogInner("INFO", $"Pixel Format offset is 0x{pfOffset:X8}");
if (pfOffset == int.MaxValue)
{
TKContext.LogError("No texture was found.");
return(null);
}
uTexture2D.PFOffset = pfOffset;
uTexture2D.PixelFormat = ePixelFormat;
uTexture2D.Height = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, pfOffset - UASSET_RELATIVE_PF_HEIGHT, 4), 0);
uTexture2D.Width = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, pfOffset - UASSET_RELATIVE_PF_WIDTH, 4), 0);
uTexture2D.UnknownValue = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, pfOffset + 0x8, 4), 0);
TKContext.LogInner("INFO", $"Texture resolution is {uTexture2D.Width}x{uTexture2D.Height}");
int[] offsets = ArrayExtensions.Locate(export.data, BitConverter.GetBytes(PF_SEPERATOR));
uTexture2D.MipMapCount = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, offsets[0] - 0x4, 4), 0);
uTexture2D.Mipmaps = new List <FTexture2DMipMap>();
TKContext.LogInner("INFO", $"Texture has {uTexture2D.MipMapCount} mipmaps");
uTexture2D.FirstSeperatorOffset = offsets[0];
for (int i = 0; i < uTexture2D.MipMapCount; i++)
{
FTexture2DMipMap fTexture2DMipMap = new FTexture2DMipMap();
fTexture2DMipMap.UncompressedSize = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, offsets[i] + SEPERATOR_UNCOMPRESSED_SIZE_OFFSET, 4), 0);
fTexture2DMipMap.TextureUassetOffset = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, offsets[i] + SEPERATOR_TEXTURE_START_OFFSET_OFFSET, 4), 0);
fTexture2DMipMap.UnknownValue = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, offsets[i] + SEPERATOR_UNKNOWN_OFFSET, 4), 0);
fTexture2DMipMap.Texture = ArrayExtensions.GetBytesFromByteArray(export.data, offsets[i] + SEPERATOR_TEXTURE_DATA, fTexture2DMipMap.UncompressedSize);
fTexture2DMipMap.Width = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, offsets[i] + SEPERATOR_TEXTURE_DATA + fTexture2DMipMap.UncompressedSize, 4), 0);
fTexture2DMipMap.Height = BitConverter.ToInt32(ArrayExtensions.GetBytesFromByteArray(export.data, offsets[i] + SEPERATOR_TEXTURE_DATA + fTexture2DMipMap.UncompressedSize + 0x4, 4), 0);
uTexture2D.Mipmaps.Add(fTexture2DMipMap);
TKContext.LogInner("INFO", fTexture2DMipMap.ToString());
}
return(uTexture2D);
}
catch (Exception ex)
{
TKContext.LogException(ex.ToString());
return(null);
}
}
public bool Read()
{
try
{
using (FileStream fs = new FileStream(FullPath, FileMode.Open, FileAccess.Read))
{
using (BinaryReader br = new BinaryReader(fs))
{
// Go to 0x2C from the end of the file.
br.BaseStream.Seek(-END_FOOTER_POS, SeekOrigin.End);
var magic = br.ReadUInt32();
// Read the file's magic number and see if it's valid.
if (magic != FOOTER_MAGIC && !IgnoreMagicNumber)
{
// The + operator is for nice code readiblity so don't get upset.
TKContext.LogError($"The package: {FileName} contains an invalid magic number." +
" Set IgnoreMagicNumber to false if you want the stream reader to ignore it.");
return(false);
}
PackageFooter footer = new PackageFooter();
footer.magic = magic;
footer.version = br.ReadUInt32();
footer.indexOffset = br.ReadUInt64();
footer.indexLength = br.ReadUInt64();
footer.indexHash = br.ReadBytes(20);
br.BaseStream.Seek((long)footer.indexOffset, SeekOrigin.Begin);
var skipbytes = br.ReadUInt32();
br.BaseStream.Seek(skipbytes, SeekOrigin.Current);
FileCount = br.ReadUInt32();
FileEntries = new PackageFileEntry[FileCount];
for (int i = 0; i < FileEntries.Length; i++)
{
PackageFileEntry packageFileEntry = new PackageFileEntry();
packageFileEntry.fileNameLength = br.ReadUInt32();
packageFileEntry.fileName = new string(br.ReadChars((int)(packageFileEntry.fileNameLength - 1)));
br.BaseStream.Seek(1, SeekOrigin.Current);
packageFileEntry.offset = br.ReadUInt64();
packageFileEntry.size1 = br.ReadUInt64();
packageFileEntry.size2 = br.ReadUInt64();
packageFileEntry.pad = br.ReadUInt32();
packageFileEntry.sha1 = br.ReadBytes(20);
packageFileEntry.pad2 = br.ReadBytes(5);
#if DEBUG
TKContext.Log("PackFileEntry", i.ToString(), $"File name: {packageFileEntry.fileName} Offset: 0x{packageFileEntry.offset:X8} " +
$"Size1: 0x{packageFileEntry.size1:X8} Size2: 0x{packageFileEntry.size2:X8} SHA1: {packageFileEntry.sha1.ToString()}", TKContext.LOG_TYPE_DEBUG, ConsoleColor.DarkCyan);
#endif
FileEntries[i] = packageFileEntry;
}
Footer = footer;
}
}
TKContext.LogInner("INFO", $"Loaded package {FileName}", ConsoleColor.Yellow);
Array.Sort(FileEntries, (x, y) =>
{
var lengthComp = Comparer <int> .Default.Compare((int)y.fileNameLength, (int)x.fileNameLength);
if (lengthComp == 0)
{
return(string.Compare(y.fileName, x.fileName));
}
return(lengthComp);
});
return(true);
}
catch (Exception ex)
{
TKContext.LogException(ex.ToString());
return(false);
}
}
