private static RootIndexBlock ReadRootBlock(IViewableData file, BlockInfoHeader rootBlockInfo)
{
using (var reader = new BinaryReader(GetBlockView(rootBlockInfo, file)))
{
return(RootIndexBlock.FromReader(reader));
}
}
protected ArchiveFileBase(IViewableData file, ArchiveHeader header,
BlockInfoHeader[] blockInfoHeaders, RootIndexBlock rootIndex)
{
File = file;
Header = header;
BlockPointers = blockInfoHeaders;
RootIndex = rootIndex;
}
public IndexFile(IViewableData file, ArchiveHeader header,
BlockInfoHeader[] blockInfoHeaders, RootIndexBlock rootIndex)
: base(file, header, blockInfoHeaders, rootIndex)
{
RootFolder = new FolderEntry("", this,
new BinaryReader(GetBlockView(rootIndex.BlockIndex), Encoding.UTF8));
using (var fileStream = System.IO.File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (var sha = SHA1.Create())
{
_fileHash = sha.ComputeHash(fileStream);
}
}
public static RootIndexBlock FromReader(BinaryReader reader)
{
var ret = new RootIndexBlock()
{
ArchiveType = (ArchiveType)reader.ReadUInt32(),
Version = reader.ReadUInt32(),
};
if (ret.Version == 1)
{
ret.BuildNumber = reader.ReadUInt32();
}
else if (ret.Version == 2)
{
ret.BlockCount = reader.ReadUInt32();
}
else
{
throw new InvalidDataException($"Unknown file version {ret.Version} for archive type {ret.ArchiveType}");
}
ret.BlockIndex = reader.ReadInt32();
return(ret);
}
public ArchiveFile(IViewableData file, ArchiveHeader header,
BlockInfoHeader[] blockInfoHeaders, RootIndexBlock rootIndex)
: base(file, header, blockInfoHeaders, rootIndex)
{
_dataEntries = ReadDataHeaders(GetBlockReader(rootIndex.BlockIndex));
}