private static object ReadValue(List <TypeTreeNode> members, EndianBinaryReader reader, ref int i)
{
var member = members[i];
var level = member.m_Level;
var varTypeStr = member.m_Type;
object value;
var align = (member.m_MetaFlag & 0x4000) != 0;
switch (varTypeStr)
{
case "SInt8":
value = reader.ReadSByte();
break;
case "UInt8":
value = reader.ReadByte();
break;
case "short":
case "SInt16":
value = reader.ReadInt16();
break;
case "UInt16":
case "unsigned short":
value = reader.ReadUInt16();
break;
case "int":
case "SInt32":
value = reader.ReadInt32();
break;
case "UInt32":
case "unsigned int":
case "Type*":
value = reader.ReadUInt32();
break;
case "long long":
case "SInt64":
value = reader.ReadInt64();
break;
case "UInt64":
case "unsigned long long":
value = reader.ReadUInt64();
break;
case "float":
value = reader.ReadSingle();
break;
case "double":
value = reader.ReadDouble();
break;
case "bool":
value = reader.ReadBoolean();
break;
case "string":
value = reader.ReadAlignedString();
i += 3;
break;
case "vector":
{
if ((members[i + 1].m_MetaFlag & 0x4000) != 0)
{
align = true;
}
var size = reader.ReadInt32();
var list = new List <object>(size);
var vector = GetMembers(members, level, i);
i += vector.Count - 1;
vector.RemoveRange(0, 3);
for (int j = 0; j < size; j++)
{
int tmp = 0;
list.Add(ReadValue(vector, reader, ref tmp));
}
value = list;
break;
}
case "map":
{
if ((members[i + 1].m_MetaFlag & 0x4000) != 0)
{
align = true;
}
var size = reader.ReadInt32();
var dic = new List <KeyValuePair <object, object> >(size);
var map = GetMembers(members, level, i);
i += map.Count - 1;
map.RemoveRange(0, 4);
var first = GetMembers(map, map[0].m_Level, 0);
map.RemoveRange(0, first.Count);
var second = map;
for (int j = 0; j < size; j++)
{
int tmp1 = 0;
int tmp2 = 0;
dic.Add(new KeyValuePair <object, object>(ReadValue(first, reader, ref tmp1), ReadValue(second, reader, ref tmp2)));
}
value = dic;
break;
}
case "TypelessData":
{
var size = reader.ReadInt32();
value = reader.ReadBytes(size);
i += 2;
break;
}
default:
{
if (i != members.Count && members[i + 1].m_Type == "Array")
{
goto case "vector";
}
var @class = GetMembers(members, level, i);
@class.RemoveAt(0);
i += @class.Count;
var obj = new Dictionary <string, object>();
for (int j = 0; j < @class.Count; j++)
{
var classmember = @class[j];
var name = classmember.m_Name;
obj[name] = ReadValue(@class, reader, ref j);
}
value = obj;
break;
}
}
if (align)
{
reader.AlignStream(4);
}
return(value);
}
private void ReadBlocksInfoAndDirectory(EndianBinaryReader reader)
{
byte[] blocksInfoBytes;
if ((m_Header.flags & 0x80) != 0) //kArchiveBlocksInfoAtTheEnd
{
var position = reader.Position;
reader.Position = reader.BaseStream.Length - m_Header.compressedBlocksInfoSize;
blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
reader.Position = position;
}
else //0x40 kArchiveBlocksAndDirectoryInfoCombined
{
if (m_Header.version >= 7)
{
reader.AlignStream(16);
}
blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
}
var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes);
MemoryStream blocksInfoUncompresseddStream;
switch (m_Header.flags & 0x3F) //kArchiveCompressionTypeMask
{
default: //None
{
blocksInfoUncompresseddStream = blocksInfoCompressedStream;
break;
}
case 1: //LZMA
{
blocksInfoUncompresseddStream = SevenZipHelper.StreamDecompress(blocksInfoCompressedStream);
blocksInfoCompressedStream.Close();
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
var uncompressedBytes = new byte[m_Header.uncompressedBlocksInfoSize];
using (var decoder = new Lz4DecoderStream(blocksInfoCompressedStream))
{
decoder.Read(uncompressedBytes, 0, uncompressedBytes.Length);
}
blocksInfoUncompresseddStream = new MemoryStream(uncompressedBytes);
break;
}
}
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoUncompresseddStream))
{
var uncompressedDataHash = blocksInfoReader.ReadBytes(16);
var blocksInfoCount = blocksInfoReader.ReadInt32();
m_BlocksInfo = new StorageBlock[blocksInfoCount];
for (int i = 0; i < blocksInfoCount; i++)
{
m_BlocksInfo[i] = new StorageBlock
{
uncompressedSize = blocksInfoReader.ReadUInt32(),
compressedSize = blocksInfoReader.ReadUInt32(),
flags = blocksInfoReader.ReadUInt16()
};
}
var nodesCount = blocksInfoReader.ReadInt32();
m_DirectoryInfo = new Node[nodesCount];
for (int i = 0; i < nodesCount; i++)
{
m_DirectoryInfo[i] = new Node
{
offset = blocksInfoReader.ReadInt64(),
size = blocksInfoReader.ReadInt64(),
flags = blocksInfoReader.ReadUInt32(),
path = blocksInfoReader.ReadStringToNull(),
};
}
}
}
public BundleFile(EndianBinaryReader bundleReader, string path)
{
this.path = path;
var signature = bundleReader.ReadStringToNull();
switch (signature)
{
case "UnityWeb":
case "UnityRaw":
case "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA":
{
var format = bundleReader.ReadInt32();
versionPlayer = bundleReader.ReadStringToNull();
versionEngine = bundleReader.ReadStringToNull();
if (format < 6)
{
int bundleSize = bundleReader.ReadInt32();
}
else if (format == 6)
{
ReadFormat6(bundleReader, true);
return;
}
short dummy2 = bundleReader.ReadInt16();
int offset = bundleReader.ReadInt16();
int dummy3 = bundleReader.ReadInt32();
int lzmaChunks = bundleReader.ReadInt32();
int lzmaSize = 0;
long streamSize = 0;
for (int i = 0; i < lzmaChunks; i++)
{
lzmaSize = bundleReader.ReadInt32();
streamSize = bundleReader.ReadInt32();
}
bundleReader.Position = offset;
switch (signature)
{
case "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA": //.bytes
case "UnityWeb":
{
var lzmaBuffer = bundleReader.ReadBytes(lzmaSize);
using (var lzmaStream = new EndianBinaryReader(SevenZipHelper.StreamDecompress(new MemoryStream(lzmaBuffer))))
{
GetAssetsFiles(lzmaStream, 0);
}
break;
}
case "UnityRaw":
{
GetAssetsFiles(bundleReader, offset);
break;
}
}
break;
}
case "UnityFS":
{
var format = bundleReader.ReadInt32();
versionPlayer = bundleReader.ReadStringToNull();
versionEngine = bundleReader.ReadStringToNull();
if (format == 6)
{
ReadFormat6(bundleReader);
}
break;
}
}
}
private static void ReadStringValue(StringBuilder sb, List <TypeTreeNode> members, EndianBinaryReader reader, ref int i)
{
var member = members[i];
var level = member.m_Level;
var varTypeStr = member.m_Type;
var varNameStr = member.m_Name;
object value = null;
var append = true;
var align = (member.m_MetaFlag & 0x4000) != 0;
switch (varTypeStr)
{
case "SInt8":
value = reader.ReadSByte();
break;
case "UInt8":
value = reader.ReadByte();
break;
case "short":
case "SInt16":
value = reader.ReadInt16();
break;
case "UInt16":
case "unsigned short":
value = reader.ReadUInt16();
break;
case "int":
case "SInt32":
value = reader.ReadInt32();
break;
case "UInt32":
case "unsigned int":
case "Type*":
value = reader.ReadUInt32();
break;
case "long long":
case "SInt64":
value = reader.ReadInt64();
break;
case "UInt64":
case "unsigned long long":
value = reader.ReadUInt64();
break;
case "float":
value = reader.ReadSingle();
break;
case "double":
value = reader.ReadDouble();
break;
case "bool":
value = reader.ReadBoolean();
break;
case "string":
append = false;
var str = reader.ReadAlignedString();
sb.AppendFormat("{0}{1} {2} = \"{3}\"\r\n", (new string('\t', level)), varTypeStr, varNameStr, str);
i += 3;
break;
case "vector":
{
if ((members[i + 1].m_MetaFlag & 0x4000) != 0)
{
align = true;
}
append = false;
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level + 1)), "Array", "Array");
var size = reader.ReadInt32();
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level + 1)), "int", "size", size);
var vector = GetMembers(members, level, i);
i += vector.Count - 1;
vector.RemoveRange(0, 3);
for (int j = 0; j < size; j++)
{
sb.AppendFormat("{0}[{1}]\r\n", (new string('\t', level + 2)), j);
int tmp = 0;
ReadStringValue(sb, vector, reader, ref tmp);
}
break;
}
case "map":
{
if ((members[i + 1].m_MetaFlag & 0x4000) != 0)
{
align = true;
}
append = false;
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level + 1)), "Array", "Array");
var size = reader.ReadInt32();
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level + 1)), "int", "size", size);
var map = GetMembers(members, level, i);
i += map.Count - 1;
map.RemoveRange(0, 4);
var first = GetMembers(map, map[0].m_Level, 0);
map.RemoveRange(0, first.Count);
var second = map;
for (int j = 0; j < size; j++)
{
sb.AppendFormat("{0}[{1}]\r\n", (new string('\t', level + 2)), j);
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level + 2)), "pair", "data");
int tmp1 = 0;
int tmp2 = 0;
ReadStringValue(sb, first, reader, ref tmp1);
ReadStringValue(sb, second, reader, ref tmp2);
}
break;
}
case "TypelessData":
{
append = false;
var size = reader.ReadInt32();
reader.ReadBytes(size);
i += 2;
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level)), "int", "size", size);
break;
}
default:
{
if (i != members.Count && members[i + 1].m_Type == "Array")
{
goto case "vector";
}
append = false;
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
var @class = GetMembers(members, level, i);
@class.RemoveAt(0);
i += @class.Count;
for (int j = 0; j < @class.Count; j++)
{
ReadStringValue(sb, @class, reader, ref j);
}
break;
}
}
if (append)
{
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level)), varTypeStr, varNameStr, value);
}
if (align)
{
reader.AlignStream(4);
}
}
public SerializedFile(AssetsManager assetsManager, string fullName, EndianBinaryReader reader)
{
this.assetsManager = assetsManager;
this.reader = reader;
this.fullName = fullName;
fileName = Path.GetFileName(fullName);
//ReadHeader
header = new SerializedFileHeader();
header.m_MetadataSize = reader.ReadUInt32();
header.m_FileSize = reader.ReadUInt32();
header.m_Version = reader.ReadUInt32();
header.m_DataOffset = reader.ReadUInt32();
if (header.m_Version >= 9)
{
header.m_Endianess = reader.ReadByte();
header.m_Reserved = reader.ReadBytes(3);
m_FileEndianess = (EndianType)header.m_Endianess;
}
else
{
reader.Position = header.m_FileSize - header.m_MetadataSize;
m_FileEndianess = (EndianType)reader.ReadByte();
}
if (header.m_Version >= 22)
{
header.m_MetadataSize = reader.ReadUInt32();
header.m_FileSize = reader.ReadInt64();
header.m_DataOffset = reader.ReadInt64();
reader.ReadInt64(); // unknown
}
//ReadMetadata
if (m_FileEndianess == EndianType.LittleEndian)
{
reader.endian = EndianType.LittleEndian;
}
if (header.m_Version >= 7)
{
unityVersion = reader.ReadStringToNull();
SetVersion(unityVersion);
}
if (header.m_Version >= 8)
{
m_TargetPlatform = (BuildTarget)reader.ReadInt32();
if (!Enum.IsDefined(typeof(BuildTarget), m_TargetPlatform))
{
m_TargetPlatform = BuildTarget.UnknownPlatform;
}
}
if (header.m_Version >= 13)
{
m_EnableTypeTree = reader.ReadBoolean();
}
//ReadTypes
int typeCount = reader.ReadInt32();
m_Types = new List <SerializedType>(typeCount);
for (int i = 0; i < typeCount; i++)
{
m_Types.Add(ReadSerializedType());
}
if (header.m_Version >= 7 && header.m_Version < 14)
{
var bigIDEnabled = reader.ReadInt32();
}
//ReadObjects
int objectCount = reader.ReadInt32();
m_Objects = new List <ObjectInfo>(objectCount);
Objects = new List <Object>(objectCount);
ObjectsDic = new Dictionary <long, Object>(objectCount);
for (int i = 0; i < objectCount; i++)
{
var objectInfo = new ObjectInfo();
if (header.m_Version < 14)
{
objectInfo.m_PathID = reader.ReadInt32();
}
else
{
reader.AlignStream();
objectInfo.m_PathID = reader.ReadInt64();
}
if (header.m_Version >= 22)
{
objectInfo.byteStart = reader.ReadInt64();
}
else
{
objectInfo.byteStart = reader.ReadUInt32();
}
objectInfo.byteStart += header.m_DataOffset;
objectInfo.byteSize = reader.ReadUInt32();
objectInfo.typeID = reader.ReadInt32();
if (header.m_Version < 16)
{
objectInfo.classID = reader.ReadUInt16();
objectInfo.serializedType = m_Types.Find(x => x.classID == objectInfo.typeID);
var isDestroyed = reader.ReadUInt16();
}
else
{
var type = m_Types[objectInfo.typeID];
objectInfo.serializedType = type;
objectInfo.classID = type.classID;
}
if (header.m_Version == 15 || header.m_Version == 16)
{
var stripped = reader.ReadByte();
}
m_Objects.Add(objectInfo);
}
if (header.m_Version >= 11)
{
int scriptCount = reader.ReadInt32();
m_ScriptTypes = new List <LocalSerializedObjectIdentifier>(scriptCount);
for (int i = 0; i < scriptCount; i++)
{
var m_ScriptType = new LocalSerializedObjectIdentifier();
m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
if (header.m_Version < 14)
{
m_ScriptType.localIdentifierInFile = reader.ReadInt32();
}
else
{
reader.AlignStream();
m_ScriptType.localIdentifierInFile = reader.ReadInt64();
}
m_ScriptTypes.Add(m_ScriptType);
}
}
int externalsCount = reader.ReadInt32();
m_Externals = new List <FileIdentifier>(externalsCount);
for (int i = 0; i < externalsCount; i++)
{
var m_External = new FileIdentifier();
if (header.m_Version >= 6)
{
var tempEmpty = reader.ReadStringToNull();
}
if (header.m_Version >= 5)
{
m_External.guid = new Guid(reader.ReadBytes(16));
m_External.type = reader.ReadInt32();
}
m_External.pathName = reader.ReadStringToNull();
m_External.fileName = Path.GetFileName(m_External.pathName);
m_Externals.Add(m_External);
}
if (header.m_Version >= 5)
{
//var userInformation = reader.ReadStringToNull();
}
if (header.m_Version >= 21)
{
//var unknown = reader.ReadInt32();
}
}
private void ReadFormat6(EndianBinaryReader bundleReader, bool padding = false)
{
var bundleSize = bundleReader.ReadInt64();
int compressedSize = bundleReader.ReadInt32();
int uncompressedSize = bundleReader.ReadInt32();
int flag = bundleReader.ReadInt32();
if (padding)
{
bundleReader.ReadByte();
}
byte[] blocksInfoBytes;
if ((flag & 0x80) != 0)//at end of file
{
var position = bundleReader.Position;
bundleReader.Position = bundleReader.BaseStream.Length - compressedSize;
blocksInfoBytes = bundleReader.ReadBytes(compressedSize);
bundleReader.Position = position;
}
else
{
blocksInfoBytes = bundleReader.ReadBytes(compressedSize);
}
MemoryStream blocksInfoStream;
switch (flag & 0b111111)
{
default: //None
{
blocksInfoStream = new MemoryStream(blocksInfoBytes);
break;
}
case 1: //LZMA
{
blocksInfoStream = SevenZipHelper.StreamDecompress(new MemoryStream(blocksInfoBytes));
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (var decoder = new Lz4DecoderStream(new MemoryStream(blocksInfoBytes)))
{
decoder.Read(uncompressedBytes, 0, uncompressedSize);
}
blocksInfoStream = new MemoryStream(uncompressedBytes);
break;
}
//case 4:LZHAM?
}
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoStream))
{
blocksInfoReader.Position = 0x10;
int blockcount = blocksInfoReader.ReadInt32();
var blockInfos = new BlockInfo[blockcount];
for (int i = 0; i < blockcount; i++)
{
blockInfos[i] = new BlockInfo
{
uncompressedSize = blocksInfoReader.ReadUInt32(),
compressedSize = blocksInfoReader.ReadUInt32(),
flag = blocksInfoReader.ReadInt16()
};
}
Stream dataStream;
var uncompressedSizeSum = blockInfos.Sum(x => x.uncompressedSize);
if (uncompressedSizeSum > int.MaxValue)
{
/*var memoryMappedFile = MemoryMappedFile.CreateNew(Path.GetFileName(path), uncompressedSizeSum);
* assetsDataStream = memoryMappedFile.CreateViewStream();*/
dataStream = new FileStream(path + ".temp", FileMode.Create, FileAccess.ReadWrite, FileShare.None, 4096, FileOptions.DeleteOnClose);
}
else
{
dataStream = new MemoryStream();
}
foreach (var blockInfo in blockInfos)
{
switch (blockInfo.flag & 0x3F)
{
default: //None
{
bundleReader.BaseStream.CopyTo(dataStream, blockInfo.compressedSize);
break;
}
case 1: //LZMA
{
SevenZipHelper.StreamDecompress(bundleReader.BaseStream, dataStream, blockInfo.compressedSize, blockInfo.uncompressedSize);
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
var lz4Stream = new Lz4DecoderStream(bundleReader.BaseStream, blockInfo.compressedSize);
lz4Stream.CopyTo(dataStream, blockInfo.uncompressedSize);
break;
}
//case 4:LZHAM?
}
}
dataStream.Position = 0;
using (dataStream)
{
var entryinfo_count = blocksInfoReader.ReadInt32();
for (int i = 0; i < entryinfo_count; i++)
{
var file = new StreamFile();
var entryinfo_offset = blocksInfoReader.ReadInt64();
var entryinfo_size = blocksInfoReader.ReadInt64();
flag = blocksInfoReader.ReadInt32();
file.fileName = Path.GetFileName(blocksInfoReader.ReadStringToNull());
if (entryinfo_size > int.MaxValue)
{
/*var memoryMappedFile = MemoryMappedFile.CreateNew(file.fileName, entryinfo_size);
* file.stream = memoryMappedFile.CreateViewStream();*/
var extractPath = path + "_unpacked\\";
Directory.CreateDirectory(extractPath);
file.stream = File.Create(extractPath + file.fileName);
}
else
{
file.stream = new MemoryStream();
}
dataStream.Position = entryinfo_offset;
dataStream.CopyTo(file.stream, entryinfo_size);
file.stream.Position = 0;
fileList.Add(file);
}
}
}
}
private void readBase5()
{
int classID = assetsFileReader.ReadInt32();
if (fileGen > 15)//5.5.0 and up
{
assetsFileReader.ReadByte();
int type1;
if ((type1 = assetsFileReader.ReadInt16()) >= 0)
{
type1 = -1 - type1;
}
else
{
type1 = classID;
}
classIDs.Add(new[] { type1, classID });
if (classID == 114)
{
assetsFileReader.Position += 16;
}
classID = type1;
}
else if (classID < 0)
{
assetsFileReader.Position += 16;
}
assetsFileReader.Position += 16;
if (baseDefinitions)
{
int varCount = assetsFileReader.ReadInt32();
int stringSize = assetsFileReader.ReadInt32();
assetsFileReader.Position += varCount * 24;
using (var stringReader = new BinaryReader(new MemoryStream(assetsFileReader.ReadBytes(stringSize))))
{
string className = "";
var classVar = new List <ClassMember>();
//build Class Structures
assetsFileReader.Position -= varCount * 24 + stringSize;
for (int i = 0; i < varCount; i++)
{
ushort num0 = assetsFileReader.ReadUInt16();
byte level = assetsFileReader.ReadByte();
bool isArray = assetsFileReader.ReadBoolean();
ushort varTypeIndex = assetsFileReader.ReadUInt16();
ushort test = assetsFileReader.ReadUInt16();
string varTypeStr;
if (test == 0) //varType is an offset in the string block
{
stringReader.BaseStream.Position = varTypeIndex;
varTypeStr = stringReader.ReadStringToNull();
}
else //varType is an index in an internal strig array
{
varTypeStr = baseStrings.ContainsKey(varTypeIndex) ? baseStrings[varTypeIndex] : varTypeIndex.ToString();
}
ushort varNameIndex = assetsFileReader.ReadUInt16();
test = assetsFileReader.ReadUInt16();
string varNameStr;
if (test == 0)
{
stringReader.BaseStream.Position = varNameIndex;
varNameStr = stringReader.ReadStringToNull();
}
else
{
varNameStr = baseStrings.ContainsKey(varNameIndex) ? baseStrings[varNameIndex] : varNameIndex.ToString();
}
int size = assetsFileReader.ReadInt32();
int index = assetsFileReader.ReadInt32();
int flag = assetsFileReader.ReadInt32();
if (index == 0)
{
className = varTypeStr + " " + varNameStr;
}
else
{
classVar.Add(new ClassMember
{
Level = level - 1,
Type = varTypeStr,
Name = varNameStr,
Size = size,
Flag = flag
});
}
}
assetsFileReader.Position += stringSize;
var aClass = new ClassStruct {
ID = classID, Text = className, members = classVar
};
aClass.SubItems.Add(classID.ToString());
ClassStructures[classID] = aClass;
}
}
}
public AssetsFile(string fullName, EndianBinaryReader reader)
{
this.reader = reader;
filePath = fullName;
fileName = Path.GetFileName(fullName);
upperFileName = fileName.ToUpper();
try
{
//SerializedFile::ReadHeader
header = new SerializedFileHeader();
header.m_MetadataSize = reader.ReadUInt32();
header.m_FileSize = reader.ReadUInt32();
header.m_Version = reader.ReadUInt32();
header.m_DataOffset = reader.ReadUInt32();
if (header.m_Version >= 9)
{
header.m_Endianess = reader.ReadByte();
header.m_Reserved = reader.ReadBytes(3);
m_FileEndianess = (EndianType)header.m_Endianess;
}
else
{
reader.Position = header.m_FileSize - header.m_MetadataSize;
m_FileEndianess = (EndianType)reader.ReadByte();
}
//SerializedFile::ReadMetadata
if (m_FileEndianess == EndianType.LittleEndian)
{
reader.endian = EndianType.LittleEndian;
}
if (header.m_Version >= 7)
{
unityVersion = reader.ReadStringToNull();
}
if (header.m_Version >= 8)
{
m_TargetPlatform = (BuildTarget)reader.ReadInt32();
if (!Enum.IsDefined(typeof(BuildTarget), m_TargetPlatform))
{
m_TargetPlatform = BuildTarget.UnknownPlatform;
}
}
platformStr = m_TargetPlatform.ToString();
if (header.m_Version >= 13)
{
m_EnableTypeTree = reader.ReadBoolean();
}
//Read types
int typeCount = reader.ReadInt32();
m_Types = new List <SerializedType>(typeCount);
for (int i = 0; i < typeCount; i++)
{
m_Types.Add(ReadSerializedType());
}
if (header.m_Version >= 7 && header.m_Version < 14)
{
var bigIDEnabled = reader.ReadInt32();
}
//Read Objects
int objectCount = reader.ReadInt32();
var assetIDfmt = "D" + objectCount.ToString().Length; //format for unique ID
m_Objects = new Dictionary <long, ObjectInfo>(objectCount);
for (int i = 0; i < objectCount; i++)
{
var objectInfo = new ObjectInfo();
if (header.m_Version < 14)
{
objectInfo.m_PathID = reader.ReadInt32();
}
else
{
reader.AlignStream(4);
objectInfo.m_PathID = reader.ReadInt64();
}
objectInfo.byteStart = reader.ReadUInt32();
objectInfo.byteStart += header.m_DataOffset;
objectInfo.byteSize = reader.ReadUInt32();
objectInfo.typeID = reader.ReadInt32();
if (header.m_Version < 16)
{
objectInfo.classID = reader.ReadUInt16();
objectInfo.serializedType = m_Types.Find(x => x.classID == objectInfo.typeID);
objectInfo.isDestroyed = reader.ReadUInt16();
}
else
{
var type = m_Types[objectInfo.typeID];
objectInfo.serializedType = type;
objectInfo.classID = type.classID;
}
if (header.m_Version == 15 || header.m_Version == 16)
{
var stripped = reader.ReadByte();
}
m_Objects.Add(objectInfo.m_PathID, objectInfo);
//Create AssetPreloadData
var asset = new AssetPreloadData(this, objectInfo, i.ToString(assetIDfmt));
preloadTable.Add(asset.m_PathID, asset);
#region read BuildSettings to get version for version 2.x files
if (asset.Type == ClassIDType.BuildSettings && header.m_Version == 6)
{
var nextAsset = reader.Position;
var BSettings = new BuildSettings(asset);
unityVersion = BSettings.m_Version;
reader.Position = nextAsset;
}
#endregion
}
if (header.m_Version >= 11)
{
int scriptCount = reader.ReadInt32();
m_ScriptTypes = new List <LocalSerializedObjectIdentifier>(scriptCount);
for (int i = 0; i < scriptCount; i++)
{
var m_ScriptType = new LocalSerializedObjectIdentifier();
m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
if (header.m_Version < 14)
{
m_ScriptType.localIdentifierInFile = reader.ReadInt32();
}
else
{
reader.AlignStream(4);
m_ScriptType.localIdentifierInFile = reader.ReadInt64();
}
m_ScriptTypes.Add(m_ScriptType);
}
}
int externalsCount = reader.ReadInt32();
m_Externals = new List <FileIdentifier>(externalsCount);
for (int i = 0; i < externalsCount; i++)
{
var m_External = new FileIdentifier();
if (header.m_Version >= 6)
{
var tempEmpty = reader.ReadStringToNull();
}
if (header.m_Version >= 5)
{
m_External.guid = new Guid(reader.ReadBytes(16));
m_External.type = reader.ReadInt32();
}
m_External.pathName = reader.ReadStringToNull();
m_External.fileName = Path.GetFileName(m_External.pathName);
m_Externals.Add(m_External);
}
if (header.m_Version >= 5)
{
//var userInformation = reader.ReadStringToNull();
}
buildType = Regex.Replace(unityVersion, @"\d", "").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
var firstVersion = int.Parse(unityVersion.Split('.')[0]);
version = Regex.Matches(unityVersion, @"\d").Cast <Match>().Select(m => int.Parse(m.Value)).ToArray();
if (firstVersion > 5)//2017 and up
{
var nversion = new int[version.Length - 3];
nversion[0] = firstVersion;
Array.Copy(version, 4, nversion, 1, version.Length - 4);
version = nversion;
}
valid = true;
}
catch
{
}
}
private void ReadBlocksInfoAndDirectory(EndianBinaryReader reader)
{
byte[] blocksInfoBytes;
if (m_Header.version >= 7)
{
reader.AlignStream(16);
}
if ((m_Header.flags & ArchiveFlags.BlocksInfoAtTheEnd) != 0)
{
var position = reader.Position;
reader.Position = reader.BaseStream.Length - m_Header.compressedBlocksInfoSize;
blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
reader.Position = position;
}
else //0x40 BlocksAndDirectoryInfoCombined
{
blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
}
MemoryStream blocksInfoUncompresseddStream;
var uncompressedSize = m_Header.uncompressedBlocksInfoSize;
var compressionType = (CompressionType)(m_Header.flags & ArchiveFlags.CompressionTypeMask);
switch (compressionType)
{
case CompressionType.None:
{
blocksInfoUncompresseddStream = new MemoryStream(blocksInfoBytes);
break;
}
case CompressionType.Lzma:
{
blocksInfoUncompresseddStream = new MemoryStream((int)(uncompressedSize));
using (var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes))
{
SevenZipHelper.StreamDecompress(blocksInfoCompressedStream, blocksInfoUncompresseddStream, m_Header.compressedBlocksInfoSize, m_Header.uncompressedBlocksInfoSize);
}
blocksInfoUncompresseddStream.Position = 0;
break;
}
case CompressionType.Lz4:
case CompressionType.Lz4HC:
{
var uncompressedBytes = new byte[uncompressedSize];
var numWrite = LZ4Codec.Decode(blocksInfoBytes, uncompressedBytes);
if (numWrite != uncompressedSize)
{
throw new IOException($"Lz4 decompression error, write {numWrite} bytes but expected {uncompressedSize} bytes");
}
blocksInfoUncompresseddStream = new MemoryStream(uncompressedBytes);
break;
}
default:
throw new IOException($"Unsupported compression type {compressionType}");
}
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoUncompresseddStream))
{
var uncompressedDataHash = blocksInfoReader.ReadBytes(16);
var blocksInfoCount = blocksInfoReader.ReadInt32();
m_BlocksInfo = new StorageBlock[blocksInfoCount];
for (int i = 0; i < blocksInfoCount; i++)
{
m_BlocksInfo[i] = new StorageBlock
{
uncompressedSize = blocksInfoReader.ReadUInt32(),
compressedSize = blocksInfoReader.ReadUInt32(),
flags = (StorageBlockFlags)blocksInfoReader.ReadUInt16()
};
}
var nodesCount = blocksInfoReader.ReadInt32();
m_DirectoryInfo = new Node[nodesCount];
for (int i = 0; i < nodesCount; i++)
{
m_DirectoryInfo[i] = new Node
{
offset = blocksInfoReader.ReadInt64(),
size = blocksInfoReader.ReadInt64(),
flags = blocksInfoReader.ReadUInt32(),
path = blocksInfoReader.ReadStringToNull(),
};
}
}
if ((m_Header.flags & ArchiveFlags.BlockInfoNeedPaddingAtStart) != 0)
{
reader.AlignStream(16);
}
}
public static void ReadClassStruct(StringBuilder sb, List <ClassMember> members, EndianBinaryReader reader)
{
for (int i = 0; i < members.Count; i++)
{
var member = members[i];
var level = member.Level;
var varTypeStr = member.Type;
var varNameStr = member.Name;
object value = null;
var align = (member.Flag & 0x4000) != 0;
var append = true;
if (member.alignBefore)
{
reader.AlignStream(4);
}
switch (varTypeStr)
{
case "SInt8":
value = reader.ReadSByte();
break;
case "UInt8":
value = reader.ReadByte();
break;
case "short":
case "SInt16":
value = reader.ReadInt16();
break;
case "UInt16":
case "unsigned short":
value = reader.ReadUInt16();
break;
case "int":
case "SInt32":
value = reader.ReadInt32();
break;
case "UInt32":
case "unsigned int":
case "Type*":
value = reader.ReadUInt32();
break;
case "long long":
case "SInt64":
value = reader.ReadInt64();
break;
case "UInt64":
case "unsigned long long":
value = reader.ReadUInt64();
break;
case "float":
value = reader.ReadSingle();
break;
case "double":
value = reader.ReadDouble();
break;
case "bool":
value = reader.ReadBoolean();
break;
case "string":
append = false;
var str = reader.ReadAlignedString();
sb.AppendFormat("{0}{1} {2} = \"{3}\"\r\n", (new string('\t', level)), varTypeStr, varNameStr, str);
i += 3; //skip
break;
case "Array":
{
append = false;
if ((members[i - 1].Flag & 0x4000) != 0)
{
align = true;
}
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
var size = reader.ReadInt32();
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level)), "int", "size", size);
var array = ReadArray(members, level, i);
for (int j = 0; j < size; j++)
{
sb.AppendFormat("{0}[{1}]\r\n", (new string('\t', level + 1)), j);
ReadClassStruct(sb, array, reader);
}
i += array.Count + 1; //skip
break;
}
case "TypelessData":
{
append = false;
var size = reader.ReadInt32();
reader.ReadBytes(size);
i += 2;
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level)), "int", "size", size);
break;
}
default:
append = false;
if (align)
{
align = false;
SetAlignBefore(members, level, i + 1);
}
sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
break;
}
if (append)
{
sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level)), varTypeStr, varNameStr, value);
}
if (align)
{
reader.AlignStream(4);
}
}
}
private void ReadBlocksInfoAndDirectory(EndianBinaryReader reader)
{
byte[] blocksInfoBytes;
if (m_Header.version >= 7)
{
reader.AlignStream(16);
}
if ((m_Header.flags & 0x80) != 0) //kArchiveBlocksInfoAtTheEnd
{
var position = reader.Position;
reader.Position = reader.BaseStream.Length - m_Header.compressedBlocksInfoSize;
blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
reader.Position = position;
}
else //0x40 kArchiveBlocksAndDirectoryInfoCombined
{
blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
}
MemoryStream blocksInfoUncompresseddStream;
var uncompressedSize = m_Header.uncompressedBlocksInfoSize;
switch (m_Header.flags & 0x3F) //kArchiveCompressionTypeMask
{
default: //None
{
blocksInfoUncompresseddStream = new MemoryStream(blocksInfoBytes);
break;
}
case 1: //LZMA
{
blocksInfoUncompresseddStream = new MemoryStream((int)(uncompressedSize));
using (var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes))
{
SevenZipHelper.StreamDecompress(blocksInfoCompressedStream, blocksInfoUncompresseddStream, m_Header.compressedBlocksInfoSize, m_Header.uncompressedBlocksInfoSize);
}
blocksInfoUncompresseddStream.Position = 0;
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
var uncompressedBytes = new byte[uncompressedSize];
var numWrite = LZ4Codec.Decode(blocksInfoBytes, uncompressedBytes);
if (numWrite != uncompressedSize)
{
throw new IOException($"Lz4 decompression error, write {numWrite} bytes but expected {uncompressedSize} bytes");
}
blocksInfoUncompresseddStream = new MemoryStream(uncompressedBytes);
break;
}
}
using (var blocksInfoReader = new EndianBinaryReader(blocksInfoUncompresseddStream))
{
var uncompressedDataHash = blocksInfoReader.ReadBytes(16);
var blocksInfoCount = blocksInfoReader.ReadInt32();
m_BlocksInfo = new StorageBlock[blocksInfoCount];
for (int i = 0; i < blocksInfoCount; i++)
{
m_BlocksInfo[i] = new StorageBlock
{
uncompressedSize = blocksInfoReader.ReadUInt32(),
compressedSize = blocksInfoReader.ReadUInt32(),
flags = blocksInfoReader.ReadUInt16()
};
}
var nodesCount = blocksInfoReader.ReadInt32();
m_DirectoryInfo = new Node[nodesCount];
for (int i = 0; i < nodesCount; i++)
{
m_DirectoryInfo[i] = new Node
{
offset = blocksInfoReader.ReadInt64(),
size = blocksInfoReader.ReadInt64(),
flags = blocksInfoReader.ReadUInt32(),
path = blocksInfoReader.ReadStringToNull(),
};
}
}
}
public SerializedFile(AssetsManager assetsManager, string fullName, EndianBinaryReader reader)
{
this.assetsManager = assetsManager;
this.reader = reader;
this.fullName = fullName;
fileName = Path.GetFileName(fullName);
// ReadHeader
header = new SerializedFileHeader();
header.m_MetadataSize = reader.ReadUInt32();
header.m_FileSize = reader.ReadUInt32();
header.m_Version = (SerializedFileFormatVersion)reader.ReadUInt32();
header.m_DataOffset = reader.ReadUInt32();
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_9)
{
header.m_Endianess = reader.ReadByte();
header.m_Reserved = reader.ReadBytes(3);
m_FileEndianess = header.m_Endianess;
}
else
{
reader.Position = header.m_FileSize - header.m_MetadataSize;
m_FileEndianess = reader.ReadByte();
}
if (header.m_Version >= SerializedFileFormatVersion.kLargeFilesSupport)
{
header.m_MetadataSize = reader.ReadUInt32();
header.m_FileSize = reader.ReadInt64();
header.m_DataOffset = reader.ReadInt64();
reader.ReadInt64(); // unknown
}
// ReadMetadata
if (m_FileEndianess == 0)
{
reader.endian = EndianType.LittleEndian;
}
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_7)
{
unityVersion = reader.ReadStringToNull();
SetVersion(unityVersion);
}
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_8)
{
m_TargetPlatform = (BuildTarget)reader.ReadInt32();
if (!Enum.IsDefined(typeof(BuildTarget), m_TargetPlatform))
{
m_TargetPlatform = BuildTarget.UnknownPlatform;
}
}
if (header.m_Version >= SerializedFileFormatVersion.kHasTypeTreeHashes)
{
m_EnableTypeTree = reader.ReadBoolean();
}
// Read Types
int typeCount = reader.ReadInt32();
m_Types = new List <SerializedType>(typeCount);
for (int i = 0; i < typeCount; i++)
{
m_Types.Add(ReadSerializedType(false));
}
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_7 && header.m_Version < SerializedFileFormatVersion.kUnknown_14)
{
bigIDEnabled = reader.ReadInt32();
}
// Read Objects
int objectCount = reader.ReadInt32();
m_Objects = new List <ObjectInfo>(objectCount);
Objects = new List <Object>(objectCount);
ObjectsDic = new Dictionary <long, Object>(objectCount);
for (int i = 0; i < objectCount; i++)
{
var objectInfo = new ObjectInfo();
if (bigIDEnabled != 0)
{
objectInfo.m_PathID = reader.ReadInt64();
}
else if (header.m_Version < SerializedFileFormatVersion.kUnknown_14)
{
objectInfo.m_PathID = reader.ReadInt32();
}
else
{
reader.AlignStream();
objectInfo.m_PathID = reader.ReadInt64();
}
if (header.m_Version >= SerializedFileFormatVersion.kLargeFilesSupport)
{
objectInfo.byteStart = reader.ReadInt64();
}
else
{
objectInfo.byteStart = reader.ReadUInt32();
}
objectInfo.byteStart += header.m_DataOffset;
objectInfo.byteSize = reader.ReadUInt32();
objectInfo.typeID = reader.ReadInt32();
if (header.m_Version < SerializedFileFormatVersion.kRefactoredClassId)
{
objectInfo.classID = reader.ReadUInt16();
objectInfo.serializedType = m_Types.Find(x => x.classID == objectInfo.typeID);
}
else
{
var type = m_Types[objectInfo.typeID];
objectInfo.serializedType = type;
objectInfo.classID = type.classID;
}
if (header.m_Version < SerializedFileFormatVersion.kHasScriptTypeIndex)
{
objectInfo.isDestroyed = reader.ReadUInt16();
}
if (header.m_Version >= SerializedFileFormatVersion.kHasScriptTypeIndex && header.m_Version < SerializedFileFormatVersion.kRefactorTypeData)
{
var m_ScriptTypeIndex = reader.ReadInt16();
if (objectInfo.serializedType != null)
{
objectInfo.serializedType.m_ScriptTypeIndex = m_ScriptTypeIndex;
}
}
if (header.m_Version == SerializedFileFormatVersion.kSupportsStrippedObject || header.m_Version == SerializedFileFormatVersion.kRefactoredClassId)
{
objectInfo.stripped = reader.ReadByte();
}
m_Objects.Add(objectInfo);
}
if (header.m_Version >= SerializedFileFormatVersion.kHasScriptTypeIndex)
{
int scriptCount = reader.ReadInt32();
m_ScriptTypes = new List <LocalSerializedObjectIdentifier>(scriptCount);
for (int i = 0; i < scriptCount; i++)
{
var m_ScriptType = new LocalSerializedObjectIdentifier();
m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
if (header.m_Version < SerializedFileFormatVersion.kUnknown_14)
{
m_ScriptType.localIdentifierInFile = reader.ReadInt32();
}
else
{
reader.AlignStream();
m_ScriptType.localIdentifierInFile = reader.ReadInt64();
}
m_ScriptTypes.Add(m_ScriptType);
}
}
int externalsCount = reader.ReadInt32();
m_Externals = new List <FileIdentifier>(externalsCount);
for (int i = 0; i < externalsCount; i++)
{
var m_External = new FileIdentifier();
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_6)
{
var tempEmpty = reader.ReadStringToNull();
}
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_5)
{
m_External.guid = new Guid(reader.ReadBytes(16));
m_External.type = reader.ReadInt32();
}
m_External.pathName = reader.ReadStringToNull();
m_External.fileName = Path.GetFileName(m_External.pathName);
m_Externals.Add(m_External);
}
if (header.m_Version >= SerializedFileFormatVersion.kSupportsRefObject)
{
int refTypesCount = reader.ReadInt32();
m_RefTypes = new List <SerializedType>(refTypesCount);
for (int i = 0; i < refTypesCount; i++)
{
m_RefTypes.Add(ReadSerializedType(true));
}
}
if (header.m_Version >= SerializedFileFormatVersion.kUnknown_5)
{
userInformation = reader.ReadStringToNull();
}
//reader.AlignStream(16);
}
private void ReadFormat6(EndianBinaryReader bundleReader, bool padding = false)
{
var bundleSize = bundleReader.ReadInt64();
int compressedSize = bundleReader.ReadInt32();
int uncompressedSize = bundleReader.ReadInt32();
int flag = bundleReader.ReadInt32();
if (padding)
{
bundleReader.ReadByte();
}
byte[] blocksInfoBytes;
if ((flag & 0x80) != 0)//at end of file
{
var position = bundleReader.Position;
bundleReader.Position = bundleReader.BaseStream.Length - compressedSize;
blocksInfoBytes = bundleReader.ReadBytes(compressedSize);
bundleReader.Position = position;
}
else
{
blocksInfoBytes = bundleReader.ReadBytes(compressedSize);
}
MemoryStream blocksInfoStream;
switch (flag & 0x3F)
{
default: //None
{
blocksInfoStream = new MemoryStream(blocksInfoBytes);
break;
}
case 1: //LZMA
{
blocksInfoStream = SevenZipHelper.StreamDecompress(new MemoryStream(blocksInfoBytes));
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (var decoder = new Lz4DecoderStream(new MemoryStream(blocksInfoBytes)))
{
decoder.Read(uncompressedBytes, 0, uncompressedSize);
}
blocksInfoStream = new MemoryStream(uncompressedBytes);
break;
}
//case 4:LZHAM?
}
using (var blocksInfo = new EndianBinaryReader(blocksInfoStream))
{
blocksInfo.Position = 0x10;
int blockcount = blocksInfo.ReadInt32();
var assetsDataStream = new MemoryStream();
for (int i = 0; i < blockcount; i++)
{
uncompressedSize = blocksInfo.ReadInt32();
compressedSize = blocksInfo.ReadInt32();
flag = blocksInfo.ReadInt16();
var compressedBytes = bundleReader.ReadBytes(compressedSize);
switch (flag & 0x3F)
{
default: //None
{
assetsDataStream.Write(compressedBytes, 0, compressedSize);
break;
}
case 1: //LZMA
{
var uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(compressedBytes))
{
var decoder = SevenZipHelper.StreamDecompress(mstream, uncompressedSize);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
assetsDataStream.Write(uncompressedBytes, 0, uncompressedSize);
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
var uncompressedBytes = new byte[uncompressedSize];
using (var decoder = new Lz4DecoderStream(new MemoryStream(compressedBytes)))
{
decoder.Read(uncompressedBytes, 0, uncompressedSize);
}
assetsDataStream.Write(uncompressedBytes, 0, uncompressedSize);
break;
}
//case 4:LZHAM?
}
}
using (var assetsDataReader = new EndianBinaryReader(assetsDataStream))
{
var entryinfo_count = blocksInfo.ReadInt32();
for (int i = 0; i < entryinfo_count; i++)
{
var file = new MemoryFile();
var entryinfo_offset = blocksInfo.ReadInt64();
var entryinfo_size = blocksInfo.ReadInt64();
flag = blocksInfo.ReadInt32();
file.fileName = Path.GetFileName(blocksInfo.ReadStringToNull());
assetsDataReader.Position = entryinfo_offset;
var buffer = assetsDataReader.ReadBytes((int)entryinfo_size);
file.stream = new MemoryStream(buffer);
fileList.Add(file);
}
}
}
}
