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(Malie): implemented non-encrypted LIBU archives.

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This commit is contained in:
morkt
2017-03-13 19:17:59 +04:00
parent 84e77b54f6
commit 4d7534151a
3 changed files with 169 additions and 90 deletions
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108
ArcFormats/Malie/ArcLIB.cs
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@@ -33,6 +33,13 @@ using GameRes.Utility;
namespace GameRes.Formats.Malie
{
internal interface ILibIndexReader : IDisposable
{
List<Entry> Dir { get; }
bool ReadIndex ();
}
[Export(typeof(ArchiveFormat))]
public class LibOpener : ArchiveFormat
{
@@ -171,18 +178,17 @@ namespace GameRes.Formats.Malie
{
var encryption = new Camellia (scheme.Key);
ReadEncrypted (file.View, encryption, 0, header, 0, 0x10);
LibIndexReader reader;
ILibIndexReader reader;
if (Binary.AsciiEqual (header, 0, "LIBP"))
reader = new LibPReader (file, encryption, header, scheme);
else if (Binary.AsciiEqual (header, 0, "LIBU"))
reader = new LibUReader (file, encryption, header, scheme);
reader = LibUReader.Create (file, encryption);
else
continue;
using (reader)
{
var dir = reader.ReadIndex();
if (dir != null)
return new MalieArchive (file, this, dir, encryption);
if (reader.ReadIndex())
return new MalieArchive (file, this, reader.Dir, encryption);
}
}
return null;
@@ -197,7 +203,7 @@ namespace GameRes.Formats.Malie
return new StreamRegion (input, entry.Offset, entry.Size);
}
internal abstract class LibIndexReader : IDisposable
internal abstract class LibIndexReader : ILibIndexReader
{
protected ArcView.Frame m_view;
protected readonly long m_max_offset;
@@ -215,7 +221,7 @@ namespace GameRes.Formats.Malie
m_header = header;
}
public abstract List<Entry> ReadIndex ();
public abstract bool ReadIndex ();
#region IDisposable Members
public void Dispose ()
@@ -244,11 +250,11 @@ namespace GameRes.Formats.Malie
m_data_align = scheme.DataAlign - 1;
}
public override List<Entry> ReadIndex ()
public override bool ReadIndex ()
{
int count = LittleEndian.ToInt32 (m_header, 4);
if (!IsSaneCount (count))
return null;
return false;
int offset_count = LittleEndian.ToInt32 (m_header, 8);
m_index = new byte[0x20 * count];
@@ -256,10 +262,10 @@ namespace GameRes.Formats.Malie
m_base_offset += 0x10;
if (m_index.Length != ReadEncrypted (m_view, m_enc, m_base_offset, m_index, 0, m_index.Length))
return null;
return false;
m_base_offset += m_index.Length;
if (offsets.Length != ReadEncrypted (m_view, m_enc, m_base_offset, offsets, 0, offsets.Length))
return null;
return false;
m_offset_table = new uint[offset_count];
Buffer.BlockCopy (offsets, 0, m_offset_table, 0, offsets.Length);
@@ -268,7 +274,7 @@ namespace GameRes.Formats.Malie
m_dir.Capacity = offset_count;
ReadDir ("", 0, 1);
return m_dir.Count > 0 ? m_dir : null;
return m_dir.Count > 0;
}
private void ReadDir (string root, int entry_index, int count)
@@ -300,84 +306,6 @@ namespace GameRes.Formats.Malie
}
}
internal class LibUReader : LibIndexReader
{
BinaryReader m_input;
public LibUReader (ArcView file, Camellia encryption, byte[] header, LibScheme scheme)
: base (file, encryption, header)
{
var input = new EncryptedStream (file, encryption);
m_input = new BinaryReader (input, Encoding.Unicode);
}
public override List<Entry> ReadIndex ()
{
return ReadDir ("", 0) ? m_dir : null;
}
bool ReadDir (string root, long base_offset)
{
m_input.BaseStream.Position = base_offset;
if (0x5542494C != m_input.ReadUInt32()) // 'LIBU'
return false;
m_input.ReadInt32();
int count = m_input.ReadInt32();
if (!IsSaneCount (count))
return false;
if (m_dir.Capacity < m_dir.Count + count)
m_dir.Capacity = m_dir.Count + count;
long index_pos = base_offset + 0x10;
for (int i = 0; i < count; ++i)
{
m_input.BaseStream.Position = index_pos;
var name = ReadName();
uint entry_size = m_input.ReadUInt32();
long entry_offset = base_offset + m_input.ReadInt64();
index_pos = m_input.BaseStream.Position;
bool has_extension = -1 != name.IndexOf ('.');
name = Path.Combine (root, name);
if (!has_extension && ReadDir (name, entry_offset))
continue;
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = entry_offset;
entry.Size = entry_size;
if (!entry.CheckPlacement (m_max_offset))
return false;
m_dir.Add (entry);
}
return true;
}
char[] m_name_buffer = new char[0x22];
string ReadName ()
{
m_input.Read (m_name_buffer, 0, 0x22);
int length = Array.IndexOf (m_name_buffer, '\0');
if (-1 == length)
length = m_name_buffer.Length;
return new string (m_name_buffer, 0, length);
}
#region IDisposable methods
bool m_disposed = false;
protected override void Dispose (bool disposing)
{
if (!m_disposed)
{
if (disposing)
m_input.Dispose();
m_disposed = true;
base.Dispose();
}
}
#endregion
}
private static int ReadEncrypted (ArcView.Frame view, Camellia enc, long offset, byte[] buffer, int index, int length)
{
int offset_pad = (int)offset & 0xF;