public static IEnumerable <WZProperty> ImageChildren(WZProperty self)
{
using (WZReader reader = self.FileContainer.GetContentReader(null, self))
{
if (self.Offset >= reader.BaseStream.Length)
{
yield break;
}
reader.BaseStream.Seek(self.Offset, SeekOrigin.Begin);
if (reader.ReadByte() != 0x73)
{
throw new InvalidOperationException("Image should have header of 0x73");
}
long oldPosition = reader.BaseStream.Position;
if (!reader.ReadWZString(false, self.Encrypted).Equals("Property"))
{
reader.BaseStream.Position = oldPosition;
if (!reader.ReadWZStringExpecting(out self.Encrypted, "Property", false))
{
throw new InvalidOperationException("Unknown encryption method");
}
}
if (reader.ReadInt16() != 0)
{
throw new InvalidOperationException("Image needs to have 0 as part of header");
}
foreach (WZProperty prop in PropertyList(reader, self).ToArray())
{
yield return(prop);
}
}
}
public static WZProperty Resolve(Package container, WZProperty self, WZReader reader)
{
switch (self.Type)
{
case PropertyType.Directory:
return(self);
case PropertyType.Image:
return(Image(reader, self));
case PropertyType.SubProperty:
return(self);
case PropertyType.Convex:
return(self);
case PropertyType.Vector2:
return(Vector(reader, self));
case PropertyType.Audio:
return(Audio(reader, self));
case PropertyType.Canvas:
return(Canvas(reader, self));
case PropertyType.UOL:
return(UOL(reader, self));
default:
return(self);
}
}
public Stream GetContentStream(WZProperty container = null)
{
Stream str = GetRawStream();
str.Seek((container ?? MainDirectory).ContainerStartLocation, SeekOrigin.Begin);
return(str);
}
public Package(PackageCollection parent, string fileLocation, ushort version = ushort.MinValue, bool?isImg = null)
{
Collection = parent;
FilePath = fileLocation;
FileName = Path.GetFileNameWithoutExtension(FilePath).Replace(".rebuilt", "");
streamFactory = new StreamFactory(() => File.Open(FilePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
isImg = isImg ?? fileLocation.EndsWith(".img");
using (WZReader file = GetRawReader()) {
if (!isImg.Value)
{
if (!file.ReadString(4).Equals("PKG1", StringComparison.CurrentCultureIgnoreCase))
{
throw new InvalidOperationException("Can not run on non-PKG1 files.");
}
FileSize = file.ReadInt64();
ContentsStartLocation = file.ReadUInt32();
FileDescription = file.ReadNULTerminatedString(100);
Logging($"Loaded package {this.FileName} ({this.FileSize}, {this.ContentsStartLocation}) with Description: {this.FileDescription}");
}
MainDirectory = new WZProperty(FileName, FileName, this, isImg.Value ? PropertyType.Image : PropertyType.Directory, null, (uint)FileSize, -1, (uint)ContentsStartLocation + (uint)(isImg.Value ? 0 : 2));
file.BaseStream.Seek(ContentsStartLocation, SeekOrigin.Begin);
if (!isImg.Value)
{
this.VersionHash = (byte)file.ReadUInt16();
Logging($"{this.FileName} - Version Hash: {this.VersionHash}");
if (!UpdateVersion(version))
{
Logging("Warning: Version is not wrong, expect corrupted / malformed data.");
}
}
}
}
public static IEnumerable <WZProperty> DirectoryChildren(WZProperty self)
{
using (WZReader reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Seek(self.Offset, SeekOrigin.Begin);
int count = reader.ReadWZInt();
WZProperty[] children = new WZProperty[count];
string name = null;
for (int i = 0; i < count; ++i)
{
byte type = reader.ReadByte();
switch (type)
{
case 1:
reader.ReadBytes(10);
continue;
case 2:
int dedupedAt = (int)(reader.ReadInt32() + reader.ContentsStart);
reader.PeekFor(() => {
reader.BaseStream.Position = dedupedAt;
type = reader.ReadByte();
name = reader.ReadWZString(false, self.Encrypted | self.Container.Encrypted);
});
break;
case 3:
case 4:
name = reader.ReadWZString(false, self.Encrypted | self.Container.Encrypted);
break;
default:
throw new Exception("Unknown child type");
}
if (name == null)
{
throw new InvalidOperationException("Found a property without a name, this shouldn't be possible.");
}
uint size = (uint)reader.ReadWZInt();
int checksum = reader.ReadWZInt();
uint offset = reader.ReadWZOffset();
WZProperty childProperty = new WZProperty(
name,
self != null ? Path.Combine(self.Path, name) : name,
reader.Package,
type == 3 ? PropertyType.Directory : type == 4 ? PropertyType.Image : throw new InvalidOperationException("Not sure what this is, but I don't handle it"),
self,
size,
checksum,
offset
);
// These can be lazy loaded
yield return(Resolve(reader.Package, childProperty));
}
}
}
static WZProperty ParseExtendedProperty(WZReader reader, WZProperty parent, string name, bool maintainReader = false)
{
string type = reader.ReadWZStringBlock(parent.Encrypted | parent.Container.Encrypted);
PropertyType propType;
switch (type)
{
case "Property":
reader.BaseStream.Seek(2, SeekOrigin.Current);
propType = PropertyType.SubProperty;
break;
case "Canvas":
propType = PropertyType.Canvas;
break;
case "Shape2D#Vector2D":
propType = PropertyType.Vector2;
break;
case "Shape2D#Convex2D":
propType = PropertyType.Convex;
break;
case "Sound_DX8":
propType = PropertyType.Audio;
break;
case "UOL":
reader.BaseStream.Seek(1, SeekOrigin.Current);
propType = PropertyType.UOL;
break;
default:
throw new InvalidOperationException($"Unknown ExtendedProperty type {type}");
}
WZProperty result = new WZProperty(
name,
Path.Combine(parent.Path, name),
parent.FileContainer,
propType,
parent,
0,
0,
(uint)reader.BaseStream.Position
);
if (maintainReader)
{
return(Resolve(parent.FileContainer, result, reader));
}
else
{
return(Resolve(parent.FileContainer, result));
}
}
public static WZProperty Resolve(Package container, WZProperty self)
{
// Determine lazy loading here
using (WZReader reader = container.GetContentReader(null, self))
{
reader.BaseStream.Seek(self.Offset, SeekOrigin.Begin);
return(Resolve(container, self, reader));
}
}
public static IEnumerable <WZProperty> SubPropChildren(WZProperty self)
{
using (WZReader reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Seek(self.Offset, SeekOrigin.Begin);
foreach (WZProperty prop in PropertyList(reader, self).ToArray())
{
yield return(prop);
}
}
}
public static IEnumerable <WZProperty> ConvexChildren(WZProperty self)
{
using (WZReader reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Position = self.Offset;
int count = reader.ReadWZInt();
for (int i = 0; i < count; ++i)
{
yield return(ParseExtendedProperty(reader, self, i.ToString(), true));
}
}
}
public void Lua(BinaryWriter writer, WZProperty self)
{
writer.Write((byte)0x01);
string s = ((IWZPropertyVal <string>)self).Value;
bool isASCII = s.All(c => c <= byte.MaxValue);
int length = s.Length * (isASCII ? -1 : 1);
IEnumerable <byte> lengthBytes;
if (length >= 127)
{
lengthBytes = new byte[] { 127 }
}
static WZProperty Canvas(WZReader reader, WZProperty self)
{
// Define the variables ahead of time that way we can come back to them
int width = 0, height = 0, format1 = 0, format2 = 0;
uint blockLen = 0, position = 0;
// Define what well be doing once we come back
WZProperty result = new WZPropertyWeak <Image <Rgba32> >(
() => {
using (reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Seek(position + 1, SeekOrigin.Begin);
ushort header = reader.PeekFor(() => reader.ReadUInt16());
return(reader.ParsePNG(
width,
height,
format1 + format2,
header != 0x9C78 && header != 0xDA78,
blockLen - 1
));
}
}, self
);
reader.BaseStream.Seek(1, SeekOrigin.Current);
if (reader.ReadByte() == 1) // Has children
{
reader.BaseStream.Seek(2, SeekOrigin.Current);
result.Children = PropertyList(reader, result).ToArray();
}
else
{
result.Children = new WZProperty[0];
}
width = reader.ReadWZInt(); // width
height = reader.ReadWZInt(); // height
format1 = reader.ReadWZInt(); // format 1
format2 = reader.ReadByte(); // format 2
reader.BaseStream.Seek(4, SeekOrigin.Current);
blockLen = (uint)reader.ReadInt32();
result.Size = (uint)blockLen;
position = (uint)reader.BaseStream.Position;
return(result);
}
public static WZProperty Image(WZReader reader, WZProperty self)
{
if (self.Offset >= reader.BaseStream.Length)
{
return(self);
}
self.ContainerStartLocation = self.Offset;
reader.Container = self;
byte imgType = reader.ReadByte();
if (imgType == 1)
{
return(new WZPropertyWeak <string>(() =>
{
using (reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Seek(self.Offset, SeekOrigin.Begin);
reader.ReadByte();
return reader.ReadLuaScript();
}
}, self.NameWithoutExtension, self.Path, self.FileContainer, PropertyType.Lua, self.Parent, self.Size, self.Checksum, self.Offset));
}
if (imgType != 0x73)
{
throw new InvalidOperationException("Unknown image type, not supported!");
}
long oldPosition = reader.BaseStream.Position;
if (!reader.ReadWZString(false, self.Encrypted).Equals("Property"))
{
reader.BaseStream.Position = oldPosition;
if (!reader.ReadWZStringExpecting(out self.Encrypted, "Property", false))
{
throw new InvalidOperationException("Unknown encryption method");
}
}
if (reader.ReadInt16() != 0)
{
throw new InvalidOperationException("Image needs to have 0 as part of header");
}
return(self);
}
public void Image(BinaryWriter writer, WZProperty self)
{
if (!imgLocations.ContainsKey(self))
{
imgLocations.Add(self, (uint)writer.BaseStream.Position);
}
else
{
imgLocations[self] = (uint)writer.BaseStream.Position; // Pretty sure this should never happen
}
using (WZReader reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Seek(self.Offset, SeekOrigin.Begin);
writer.Write(reader.ReadBytes((int)self.Size));
}
//writer.Write((byte)0x73); // Regular img
//GetWZStringBytes(writer, "Property");
//writer.Write((short)0);
//PropertyList(writer, self.Children);
}
public static WZProperty Audio(WZReader reader, WZProperty self)
{
byte unk = reader.ReadByte();
int length = reader.ReadWZInt();
int duration = reader.ReadWZInt();
WZProperty result = new WZPropertyWeak <byte[]>(
() => {
Package.Logging($"{self.Path} (Audio) - {unk}");
using (reader = self.FileContainer.GetContentReader(null, self))
{
reader.BaseStream.Seek(self.Offset + 1, SeekOrigin.Begin);
if (length > sbyte.MaxValue || length <= sbyte.MinValue)
{
reader.BaseStream.Seek(5, SeekOrigin.Current);
}
else
{
reader.BaseStream.Seek(1, SeekOrigin.Current);
}
if (duration > sbyte.MaxValue || duration <= sbyte.MinValue)
{
reader.BaseStream.Seek(5, SeekOrigin.Current);
}
else
{
reader.BaseStream.Seek(1, SeekOrigin.Current);
}
return(reader.ReadBytes(length));
}
}, self
);
result.Size = (uint)length;
result.Meta.Add("duration", duration);
result.Meta.Add("unk", unk);
return(result);
}
public WZPropertyVal(K val, string name, string path, Package container, PropertyType type, WZProperty parent, uint size, int checksum, uint offset)
: base(name, path, container, type, parent, size, checksum, offset)
{
Value = val;
}
public WZPropertyVal(K val, WZProperty original)
: this(val, original.NameWithoutExtension, original.Path, original.FileContainer, original.Type, original.Parent, original.Size, original.Checksum, original.Offset)
{
this.Encrypted = original.Encrypted;
}
public WZPropertyWeak(Func <K> val, string name, string path, Package container, PropertyType type, WZProperty parent, uint size, int checksum, uint offset) : base(name, path, container, type, parent, size, checksum, offset)
{
_weakValue = new WeakishReference <K>(null, val);
}
public WZReader GetContentReader(Encoding encoding = null, WZProperty container = null) => new WZReader(this, container ?? MainDirectory, GetContentStream(container), encoding ?? Encoding.ASCII, VersionKey, VersionHash, ContentsStartLocation);
public static IEnumerable <WZProperty> PropertyList(WZReader reader, WZProperty parent)
{
if (reader.BaseStream.Position + 4 >= reader.BaseStream.Length)
{
return(new WZProperty[0]);
}
return(Enumerable.Range(0, reader.ReadWZInt()).Select(i =>
{
uint position = (uint)reader.BaseStream.Position;
if (position >= reader.BaseStream.Length)
{
return null;
}
string name = reader.ReadWZStringBlock(parent.Encrypted | parent.Container.Encrypted);
byte type = reader.ReadByte();
switch (type)
{
case 0:
return new WZProperty(name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Null, parent, 0, 0, position);
case 0x10:
return new WZPropertyVal <sbyte>(reader.ReadSByte(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.UInt16, parent, 1, 0, position);
case 0x11:
return new WZPropertyVal <byte>(reader.ReadByte(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.UInt16, parent, 1, 0, position);
case 0x0B:
case 2:
case 0x12:
return new WZPropertyVal <UInt16>(reader.ReadUInt16(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.UInt16, parent, 2, 0, position);
case 3:
return new WZPropertyVal <Int32>(reader.ReadWZInt(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Int32, parent, 4, 0, position);
case 19:
return new WZPropertyVal <Rgba32>(new Rgba32((uint)reader.ReadWZInt()), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Int32, parent, 4, 0, position);
case 4:
return new WZPropertyVal <Single>(reader.ReadWZSingle(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Single, parent, 4, 0, position);
case 5:
return new WZPropertyVal <Double>(reader.ReadDouble(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Double, parent, 8, 0, position);
case 8:
return new WZPropertyVal <string>(reader.ReadWZStringBlock(parent.Encrypted | parent.Container.Encrypted), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.String, parent, 0, 0, position);
case 9:
uint blockLen = reader.ReadUInt32();
WZProperty result = reader.PeekFor(() => ParseExtendedProperty(reader, parent, name));
reader.BaseStream.Seek(blockLen, SeekOrigin.Current);
return result;
case 20:
return new WZPropertyVal <long>(reader.ReadWZLong(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Int64, parent, 8, 0, position);
case 21:
return new WZPropertyVal <ulong>((ulong)reader.ReadWZLong(), name, Path.Combine(parent.Path, name), parent.FileContainer, PropertyType.Int64, parent, 8, 0, position);
default:
throw new Exception("Unknown property type at ParsePropertyList");
}
}));
}
public static byte[] ResolveHash(WZProperty prop)
{
using (WZReader reader = prop.FileContainer.GetContentReader(null, prop))
using (SHA1 sha = SHA1.Create())
{
reader.BaseStream.Position = prop.Offset;
switch (prop.Type)
{
case PropertyType.Image:
reader.BaseStream.Position = prop.ContainerStartLocation;
byte imgType = reader.ReadByte();
if (imgType == 1)
{
byte unk = reader.ReadByte();
return(reader.GetLuaScriptBytes().ToArray());
}
else
{
return(new byte[0]);
}
case PropertyType.Directory: return(new byte[0]);
case PropertyType.SubProperty: return(new byte[0]);
case PropertyType.Convex: return(new byte[0]);
case PropertyType.Vector2: return(sha.ComputeHash(reader.GetWZIntBytes().Concat(reader.GetWZIntBytes()).ToArray()));
case PropertyType.UOL: return(sha.ComputeHash(reader.GetWZStringBlockBytes(prop.Encrypted | prop.Container.Encrypted)));
case PropertyType.Audio:
using (Stream sub = new SubStream(reader.BaseStream, (int)reader.BaseStream.Position, prop.Size))
return(sha.ComputeHash(sub));
case PropertyType.Canvas:
reader.BaseStream.Seek(1, SeekOrigin.Current);
byte[][] childHashes;
if (reader.ReadByte() == 1)
{
reader.BaseStream.Seek(2, SeekOrigin.Current);
childHashes = PropertyList(reader, prop).ToArray().Select(c => ResolveHash(c)).ToArray();
}
else
{
childHashes = new byte[0][];
}
int width = reader.ReadWZInt(); // width
int height = reader.ReadWZInt(); // height
int format1 = reader.ReadWZInt(); // format 1
byte format2 = reader.ReadByte(); // format 2
reader.BaseStream.Seek(4, SeekOrigin.Current);
uint blockLen = (uint)reader.ReadInt32();
ushort header = reader.PeekFor(() => reader.ReadUInt16());
byte[] imageHash = new byte[0];
using (Stream sub = new SubStream(reader.BaseStream, reader.BaseStream.Position, blockLen - 1))
imageHash = sha.ComputeHash(sub);
if (childHashes.Length > 0)
{
return(calcAggregateHash(sha, childHashes.Prepend(imageHash).ToArray()));
}
else
{
return(imageHash);
}
default:
byte[] nameHash = sha.ComputeHash(reader.GetWZStringBlockBytes(prop.Encrypted | prop.Container.Encrypted));
byte type = reader.ReadByte();
switch (type)
{
case 0: return(nameHash);
case 0x10: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.ReadBytes(1))));
case 0x11: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.ReadBytes(1))));
case 0x0B:
case 2:
case 0x12: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.ReadBytes(2))));
case 3: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.GetWZIntBytes())));
case 19: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.GetWZIntBytes())));
case 4: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.GetWZSingleBytes())));
case 5: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.ReadBytes(8))));
case 8: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.GetWZStringBlockBytes(prop.Container.Encrypted))));
case 9: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.ReadBytes(reader.ReadInt32()))));
case 20: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.GetWZLongBytes())));
case 21: return(calcAggregateHash(sha, nameHash, sha.ComputeHash(reader.GetWZLongBytes())));
default:
System.Diagnostics.Debugger.Break();
Console.WriteLine("Wow");
if (type > 100)
{
throw new Exception("Unknown property type at ParsePropertyList");
}
else
{
return(new byte[0]);
}
}
}
}
}
public static WZProperty Vector(WZReader reader, WZProperty self) => new WZPropertyVal <Point>(new Point(reader.ReadWZInt(), reader.ReadWZInt()), self);
public static WZProperty UOL(WZReader reader, WZProperty self) => new WZPropertyVal <string>(reader.ReadWZStringBlock(self.Encrypted | self.Container.Encrypted), self);