internal static ManifestHeader Parse(BinaryReader reader)
{
var result = new ManifestHeader();
var testValue = reader.ReadUInt32();
if (testValue == 0)
{
result.Version = reader.ReadUInt16();
if (result.Version != 7)
{
throw new InvalidDataException();
}
result.IsBigEndian = reader.ReadBooleanChecked();
result.IsLinked = reader.ReadBooleanChecked();
}
else
{
reader.BaseStream.Seek(-4, SeekOrigin.Current);
result.IsBigEndian = reader.ReadBooleanChecked();
result.IsLinked = reader.ReadBooleanChecked();
result.Version = reader.ReadUInt16();
if (result.Version != 5 && result.Version != 6)
{
throw new InvalidDataException();
}
}
result.StreamChecksum = reader.ReadUInt32();
result.AllTypesHash = reader.ReadUInt32();
result.AssetCount = reader.ReadUInt32();
result.TotalInstanceDataSize = reader.ReadUInt32();
result.MaxInstanceChunkSize = reader.ReadUInt32();
result.MaxRelocationChunkSize = reader.ReadUInt32();
result.MaxImportsChunkSize = reader.ReadUInt32();
result.AssetReferenceBufferSize = reader.ReadUInt32();
result.ReferencedManifestNameBufferSize = reader.ReadUInt32();
result.AssetNameBufferSize = reader.ReadUInt32();
result.SourceFileNameBufferSize = reader.ReadUInt32();
return(result);
}
internal static ManifestHeader Parse(BinaryReader reader)
{
var result = new ManifestHeader();
result.IsBigEndian = reader.ReadBooleanChecked();
result.IsLinked = reader.ReadBooleanChecked();
result.Version = reader.ReadUInt16();
result.StreamChecksum = reader.ReadUInt32();
result.AllTypesHash = reader.ReadUInt32();
result.AssetCount = reader.ReadUInt32();
result.TotalInstanceDataSize = reader.ReadUInt32();
result.MaxInstanceChunkSize = reader.ReadUInt32();
result.MaxRelocationChunkSize = reader.ReadUInt32();
result.MaxImportsChunkSize = reader.ReadUInt32();
result.AssetReferenceBufferSize = reader.ReadUInt32();
result.ReferencedManifestNameBufferSize = reader.ReadUInt32();
result.AssetNameBufferSize = reader.ReadUInt32();
result.SourceFileNameBufferSize = reader.ReadUInt32();
return(result);
}
public static ManifestFile FromFileSystemEntry(FileSystemEntry entry)
{
using (var stream = entry.Open())
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
var result = new ManifestFile
{
Header = ManifestHeader.Parse(reader)
};
switch (result.Header.Version)
{
case 5:
case 6:
case 7:
break;
default:
throw new InvalidDataException();
}
result.Assets = new Asset[result.Header.AssetCount];
for (var i = 0; i < result.Assets.Length; i++)
{
result.Assets[i] = new Asset
{
Header = AssetEntry.Parse(reader, result.Header.Version)
};
}
result.AssetReferences = new AssetReference[result.Header.AssetReferenceBufferSize / AssetReference.SizeInBytes];
for (var i = 0; i < result.AssetReferences.Length; i++)
{
result.AssetReferences[i] = AssetReference.Parse(reader);
}
foreach (var asset in result.Assets)
{
asset.AssetReferences = result.AssetReferences.AsSpan().Slice(
(int)asset.Header.AssetReferenceOffset / AssetReference.SizeInBytes,
(int)asset.Header.AssetReferenceCount);
}
{
var endPosition = stream.Position + result.Header.ReferencedManifestNameBufferSize;
var manifestReferences = new List <ManifestReference>();
while (stream.Position < endPosition)
{
manifestReferences.Add(ManifestReference.Parse(reader));
}
result.ManifestReferences = manifestReferences;
}
{
var endPosition = stream.Position + result.Header.AssetNameBufferSize;
var assetNames = ReadNameBuffer(reader, endPosition);
foreach (var asset in result.Assets)
{
asset.Name = assetNames[asset.Header.NameOffset];
}
}
{
var endPosition = stream.Position + result.Header.SourceFileNameBufferSize;
var sourceFileNames = ReadNameBuffer(reader, endPosition);
foreach (var asset in result.Assets)
{
asset.SourceFileName = sourceFileNames[asset.Header.SourceFileNameOffset];
}
}
return(result);
}
}
public static ManifestFile FromFileSystemEntry(FileSystemEntry entry)
{
using (var stream = entry.Open())
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
var result = new ManifestFile
{
Header = ManifestHeader.Parse(reader)
};
if (result.Header.Version != 5)
{
throw new System.NotImplementedException();
}
result.Assets = new Asset[result.Header.AssetCount];
for (var i = 0; i < result.Assets.Length; i++)
{
result.Assets[i] = new Asset
{
Header = AssetEntry.Parse(reader)
};
}
result.AssetReferences = new AssetReference[result.Header.AssetReferenceBufferSize / AssetReference.SizeInBytes];
for (var i = 0; i < result.AssetReferences.Length; i++)
{
result.AssetReferences[i] = AssetReference.Parse(reader);
}
{
var endPosition = stream.Position + result.Header.ReferencedManifestNameBufferSize;
var manifestReferences = new List <ManifestReference>();
while (stream.Position < endPosition)
{
manifestReferences.Add(ManifestReference.Parse(reader));
}
result.ManifestReferences = manifestReferences;
}
{
var endPosition = stream.Position + result.Header.AssetNameBufferSize;
var assetNames = ReadNameBuffer(reader, endPosition);
foreach (var asset in result.Assets)
{
asset.Name = assetNames[asset.Header.NameOffset];
}
}
{
var endPosition = stream.Position + result.Header.SourceFileNameBufferSize;
var sourceFileNames = ReadNameBuffer(reader, endPosition);
foreach (var asset in result.Assets)
{
asset.SourceFileName = sourceFileNames[asset.Header.SourceFileNameOffset];
}
}
var instanceDataOffset = 4u;
var relocationDataOffset = 4u;
var importsDataOffset = 4u;
foreach (var asset in result.Assets)
{
asset.InstanceDataOffset = instanceDataOffset;
asset.RelocationDataOffset = relocationDataOffset;
asset.ImportsDataOffset = importsDataOffset;
instanceDataOffset += asset.Header.InstanceDataSize;
relocationDataOffset += asset.Header.RelocationDataSize;
importsDataOffset += asset.Header.ImportsDataSize;
}
return(result);
}
}
