public Stream OpenIndexInfo(IndexEntry idxInfo, MD5Hash key, bool checkHash = true)
{
lock (_dataLocks[idxInfo.Index]) {
Stream dataStream = GetDataStream(idxInfo.Index);
dataStream.Position = idxInfo.Offset;
using (BinaryReader reader = new BinaryReader(dataStream, Encoding.ASCII, true)) {
byte[] md5 = reader.ReadBytes(16);
Array.Reverse(md5);
if (checkHash)
{
if (!key.EqualsTo9(md5))
{
throw new Exception("local data corrupted");
}
}
int size = reader.ReadInt32();
if (size != idxInfo.Size)
{
throw new Exception("local data corrupted");
}
//byte[] unkData1 = reader.ReadBytes(2);
//byte[] unkData2 = reader.ReadBytes(8);
dataStream.Position += 10;
byte[] data = reader.ReadBytes(idxInfo.Size - 30);
return(new MemoryStream(data));
}
}
}
protected Stream GetLocalDataStreamInternal(IndexEntry idxInfo, MD5Hash key)
{
if (idxInfo == null)
{
throw new Exception("local index missing");
}
Stream dataStream = GetDataStream(idxInfo.Index);
dataStream.Position = idxInfo.Offset;
using (BinaryReader reader = new BinaryReader(dataStream, Encoding.ASCII, true))
{
byte[] md5 = reader.ReadBytes(16);
Array.Reverse(md5);
if (!key.EqualsTo9(md5))
{
throw new Exception("local data corrupted");
}
int size = reader.ReadInt32();
if (size != idxInfo.Size)
{
throw new Exception("local data corrupted");
}
//byte[] unkData1 = reader.ReadBytes(2);
//byte[] unkData2 = reader.ReadBytes(8);
dataStream.Position += 10;
byte[] data = reader.ReadBytes(idxInfo.Size - 30);
return(new MemoryStream(data));
}
}
