public void Write(byte version, byte[] key, CatalogueEntry entry)
{
Write(key);
Write(entry.Offset);
Write(entry.Size);
if (version == 0x01)
{
Write(entry.Extra);
}
Write(entry.Archive);
}
public void WriteFileFromCatalogue(CatalogueEntry entry, string directory)
{
string compoundName = Path.GetDirectoryName(entry.Parent.Path) + @"\cas_" + entry.Archive.ToString("00") + ".cas";
using (BinaryReader reader = new BinaryReader(File.Open(compoundName, FileMode.Open)))
{
reader.BaseStream.Seek(entry.Offset, SeekOrigin.Begin);
string finalDirectory = directory + @"\cat\";
string finalName = finalDirectory + entry.ResolvedName;
Directory.CreateDirectory(finalDirectory);
ChunkHandler.Dechunk(finalName, reader, entry.Size);
}
}
private void BuildCatalogueEntry(Catalogue catalogue, byte version)
{
byte[] hash = ReadBytes(20);
CatalogueEntry entry = new CatalogueEntry();
entry.Offset = ReadInt32();
entry.Size = ReadInt32();
if (version == 0x01)
{
entry.Extra = ReadInt32();
}
entry.Archive = ReadInt32();
catalogue.Files[hash] = entry;
catalogue.FileHashes.Add(hash);
entry.Parent = catalogue;
entry.ResolvedName = BitConverter.ToString(hash).Replace("-", string.Empty).ToLower();
}
private void UpdateManifest()
{
var catalogue = catalogues.Where(cat => cat.Files.ContainsKey(SessionManifestSha1)).First();
CatalogueEntry manifestCatEntry = catalogue.Files[SessionManifestSha1];
using (MemoryStream manifestMemoryStream = new MemoryStream())
{
using (ManifestBinaryWriter memoryManifestWriter = new ManifestBinaryWriter(manifestMemoryStream))
{
memoryManifestWriter.Write(manifest);
}
byte[] manifestByteArray = manifestMemoryStream.ToArray();
if (manifestByteArray.Length != manifestCatEntry.Size)
{
throw new InvalidDataException("Incorrectly created manifest!");
}
byte[] updatedSha1 = CalculateSha1(manifestByteArray);
using (BinaryWriter manifestWriter = new BinaryWriter(File.Open(ResolveManifestCasFile(), FileMode.Open)))
{
manifestWriter.BaseStream.Seek(manifestCatEntry.Offset, SeekOrigin.Begin);
manifestWriter.Write(manifestByteArray);
}
using (BinaryWriter layoutWriter = new BinaryWriter(File.Open(BaseDirectory + LayoutTocPath, FileMode.Open)))
{
layoutWriter.BaseStream.Seek(LayoutTocManifestSha1Location, SeekOrigin.Begin);
layoutWriter.Write(updatedSha1);
}
using (BinaryWriter catWriter = new BinaryWriter(File.Open(catalogue.Path, FileMode.Open)))
{
catWriter.BaseStream.Seek(ManifestCatSha1Location, SeekOrigin.Begin);
catWriter.Write(updatedSha1);
}
}
}