private void WriteFolderBlocks(BinaryWriterEx bw, FolderEntry folder)
{
var allChilds = folder.GetEntryHierarchy().ToList();
var totalFilesSize = allChilds.OfType <FileEntry>().Sum(x => x.FileSize);
var folderBlock = new LIFFBlock
{
BlockHeader = 1,
BlockType = 3,
BlockSize = ((allChilds.Count() + 1) * LIFFBLOCK_SIZE) + (int)totalFilesSize
};
bw.WriteStruct(folderBlock);
foreach (var entry in folder.Entries.OrderBy(x => x.Name))
{
if (entry is FileEntry file)
{
var fileBlock = new LIFFBlock
{
BlockHeader = 1,
BlockType = 4,
Spacing2 = 1,
BlockSize = LIFFBLOCK_SIZE + (int)file.FileSize
};
bw.WriteStruct(fileBlock);
var fileStream = file.GetStream();
//fileStream.CopyTo(bw.BaseStream, 4096);
byte[] buffer = new byte[4096];
int bytesRead = 0;
while (bytesRead < file.FileSize)
{
int b = fileStream.Read(buffer, 0, buffer.Length);
bytesRead += b;
bw.Write(buffer, 0, b);
if (b == 0)
{
break;
}
}
}
else
{
WriteFolderBlocks(bw, (FolderEntry)entry);
}
}
}
private void WriteFolderEntries(BinaryWriterEx bw, FolderEntry folder)
{
var allChilds = folder.GetEntryHierarchy().ToList();
var folderEntry = new LIFFFolderEntry()
{
EntryType = 1,
Filename = folder.IsRootDirectory ? null : folder.Name,
EntryCount = folder.Entries.Count,
Reserved1 = folder.IsRootDirectory ? 0 : 7,
BlockSize = 20
};
bw.WriteStruct(folderEntry);
foreach (var entry in folder.Entries.OrderBy(x => x.Name))
{
if (entry is FileEntry file)
{
var fileEntry = new LIFFFileEntry()
{
EntryType = 2,
Filename = file.Name,
FileSize = (int)file.FileSize + LIFFBLOCK_SIZE,
Reserved1 = 7,
Created = file.CreatedDate.ToFileTime(),
Modified = file.ModifiedDate.ToFileTime(),
Accessed = file.AccessedDate.ToFileTime()
};
bw.WriteStruct(fileEntry);
}
else
{
WriteFolderEntries(bw, (FolderEntry)entry);
}
}
}