public static EncryptedChunkEntry Read(Stream input, Endian endian)
{
EncryptedChunkEntry instance;
instance.Entry = NormalEntry.Read(input, endian);
instance.CryptoInfo = CryptoInfo.Read(input, endian);
return(instance);
}
public static NormalEntry Read(Stream input, Endian endian)
{
var instance = new NormalEntry();
instance.Id = new SHA1Hash(input.ReadBytes(20));
instance.Offset = input.ReadValueU32(endian);
instance.Size = input.ReadValueU32(endian);
instance.TailSize = input.ReadValueU32(endian);
instance.DataIndex = input.ReadValueU8();
instance.IsEncrypted = input.ReadValueB8();
var padding = input.ReadBytes(2);
if (padding.Any(b => b != 0) == true)
{
throw new FormatException();
}
return(instance);
}
public static CatalogFile Read(Stream input)
{
const Endian endian = Endian.Little;
var magic1 = input.ReadValueU64(endian);
var magic2 = input.ReadValueU64(endian);
if (magic1 != Signature || magic2 != Signature)
{
throw new FormatException();
}
var instance = new CatalogFile();
var normalCount = input.ReadValueU32(endian);
var patchCount = input.ReadValueU32(endian);
var encryptedCount = input.ReadValueU32(endian);
var unknown1C = input.ReadValueS32(endian); // patch version related?
var unknown20 = input.ReadValueS32(endian); // patch version related?
var unknown24 = input.ReadValueS32(endian); // patch version related?
instance.NormalEntries.Clear();
for (int i = 0; i < normalCount; i++)
{
var entry = NormalEntry.Read(input, endian);
if (entry.IsEncrypted == true)
{
throw new FormatException();
}
instance.NormalEntries.Add(entry);
}
instance.EncryptedEntries.Clear();
for (int i = 0; i < encryptedCount; i++)
{
var encryptedEntry = EncryptedChunkEntry.Read(input, endian);
if (encryptedEntry.Entry.IsEncrypted == false)
{
throw new FormatException();
}
if (encryptedEntry.Entry.Size != encryptedEntry.CryptoInfo.Size)
{
throw new FormatException();
}
instance.EncryptedEntries.Add(encryptedEntry);
}
instance.PatchEntries.Clear();
for (int i = 0; i < patchCount; i++)
{
var entry = PatchEntry.Read(input, endian);
instance.PatchEntries.Add(entry);
}
if (input.Position != input.Length)
{
throw new FormatException();
}
return(instance);
}