mirror of
https://github.com/crskycode/GARbro.git
synced 2024-10-23 15:48:16 +08:00
499 lines
18 KiB
C#
499 lines
18 KiB
C#
//! \file ArcLIB.cs
|
|
//! \date Thu Jun 25 06:46:51 2015
|
|
//! \brief Malie System archive implementation.
|
|
//
|
|
// Copyright (C) 2015-2016 by morkt
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to
|
|
// deal in the Software without restriction, including without limitation the
|
|
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
// sell copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
// IN THE SOFTWARE.
|
|
//
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using GameRes.Encryption;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.Malie
|
|
{
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class LibOpener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "LIB"; } }
|
|
public override string Description { get { return "Malie engine resource archive"; } }
|
|
public override uint Signature { get { return 0x0042494C; } } // 'LIB'
|
|
public override bool IsHierarchic { get { return true; } }
|
|
public override bool CanCreate { get { return false; } }
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
var reader = new Reader (file);
|
|
if (reader.ReadIndex ("", 0, (uint)file.MaxOffset))
|
|
return new ArcFile (file, this, reader.Dir);
|
|
else
|
|
return null;
|
|
}
|
|
|
|
internal class Reader
|
|
{
|
|
ArcView.Frame m_view;
|
|
List<Entry> m_dir = new List<Entry>();
|
|
|
|
public List<Entry> Dir { get { return m_dir; } }
|
|
|
|
public Reader (ArcView file)
|
|
{
|
|
m_view = file.View;
|
|
}
|
|
|
|
public bool ReadIndex (string root, long base_offset, uint size)
|
|
{
|
|
uint signature = m_view.ReadUInt32 (base_offset);
|
|
if (0x0042494C != signature)
|
|
return false;
|
|
|
|
int count = m_view.ReadInt16 (base_offset + 8);
|
|
if (count <= 0)
|
|
return false;
|
|
long index_offset = base_offset + 0x10;
|
|
uint index_size = (uint)(0x30 * count);
|
|
if (index_size > size)
|
|
return false;
|
|
if (index_size > m_view.Reserve (index_offset, index_size))
|
|
return false;
|
|
long data_offset = index_offset + index_size;
|
|
if (m_dir.Capacity < m_dir.Count + count)
|
|
m_dir.Capacity = m_dir.Count + count;
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
string name = m_view.ReadString (index_offset, 0x24);
|
|
uint entry_size = m_view.ReadUInt32 (index_offset+0x24);
|
|
long offset = base_offset + m_view.ReadUInt32 (index_offset+0x28);
|
|
index_offset += 0x30;
|
|
string ext = Path.GetExtension (name);
|
|
name = Path.Combine (root, name);
|
|
if (string.IsNullOrEmpty (ext) && ReadIndex (name, offset, entry_size))
|
|
{
|
|
continue;
|
|
}
|
|
if (offset < data_offset || offset + entry_size > base_offset + size)
|
|
return false;
|
|
|
|
var entry = FormatCatalog.Instance.Create<Entry> (name);
|
|
entry.Offset = offset;
|
|
entry.Size = entry_size;
|
|
m_dir.Add (entry);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class MalieArchive : ArcFile
|
|
{
|
|
public readonly Camellia Encryption;
|
|
|
|
public MalieArchive (ArcView file, ArchiveFormat format, ICollection<Entry> dir, Camellia encryption)
|
|
: base (file, format, dir)
|
|
{
|
|
Encryption = encryption;
|
|
}
|
|
}
|
|
|
|
[Serializable]
|
|
public class LibScheme : ResourceScheme
|
|
{
|
|
public Dictionary<string, uint[]> KnownKeys;
|
|
}
|
|
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class DatOpener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "LIBP"; } }
|
|
public override string Description { get { return "Malie engine encrypted archive"; } }
|
|
public override uint Signature { get { return 0; } }
|
|
public override bool IsHierarchic { get { return true; } }
|
|
public override bool CanCreate { get { return false; } }
|
|
|
|
public DatOpener ()
|
|
{
|
|
Extensions = new string[] { "lib", "dat" };
|
|
}
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
if (file.MaxOffset <= 0x10)
|
|
return null;
|
|
var header = new byte[0x10];
|
|
foreach (var key in KnownKeys.Values)
|
|
{
|
|
var encryption = new Camellia (key);
|
|
ReadEncrypted (file.View, encryption, 0, header, 0, 0x10);
|
|
LibIndexReader reader;
|
|
if (Binary.AsciiEqual (header, 0, "LIBP"))
|
|
reader = new LibPReader (file, encryption, header);
|
|
else if (Binary.AsciiEqual (header, 0, "LIBU"))
|
|
reader = new LibUReader (file, encryption, header);
|
|
else
|
|
continue;
|
|
using (reader)
|
|
{
|
|
var dir = reader.ReadIndex();
|
|
if (dir != null)
|
|
return new MalieArchive (file, this, dir, encryption);
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
var march = arc as MalieArchive;
|
|
if (null == march)
|
|
return arc.File.CreateStream (entry.Offset, entry.Size);
|
|
var input = new EncryptedStream (march.File, march.Encryption);
|
|
return new StreamRegion (input, entry.Offset, entry.Size);
|
|
}
|
|
|
|
internal abstract class LibIndexReader : IDisposable
|
|
{
|
|
protected ArcView.Frame m_view;
|
|
protected readonly long m_max_offset;
|
|
protected Camellia m_enc;
|
|
protected List<Entry> m_dir = new List<Entry>();
|
|
protected byte[] m_header;
|
|
|
|
public List<Entry> Dir { get { return m_dir; } }
|
|
|
|
protected LibIndexReader (ArcView file, Camellia encryption, byte[] header)
|
|
{
|
|
m_view = file.View;
|
|
m_max_offset = file.MaxOffset;
|
|
m_enc = encryption;
|
|
m_header = header;
|
|
}
|
|
|
|
public abstract List<Entry> ReadIndex ();
|
|
|
|
#region IDisposable Members
|
|
public void Dispose ()
|
|
{
|
|
Dispose (true);
|
|
GC.SuppressFinalize (this);
|
|
}
|
|
|
|
protected virtual void Dispose (bool disposing)
|
|
{
|
|
}
|
|
#endregion
|
|
}
|
|
|
|
internal class LibPReader : LibIndexReader
|
|
{
|
|
byte[] m_index;
|
|
long m_base_offset;
|
|
uint[] m_offset_table;
|
|
|
|
public LibPReader (ArcView file, Camellia encryption, byte[] header) : base (file, encryption, header)
|
|
{
|
|
m_base_offset = 0;
|
|
}
|
|
|
|
public override List<Entry> ReadIndex ()
|
|
{
|
|
int count = LittleEndian.ToInt32 (m_header, 4);
|
|
if (!IsSaneCount (count))
|
|
return null;
|
|
int offset_count = LittleEndian.ToInt32 (m_header, 8);
|
|
|
|
m_index = new byte[0x20 * count];
|
|
var offsets = new byte[4 * offset_count];
|
|
|
|
m_base_offset += 0x10;
|
|
if (m_index.Length != ReadEncrypted (m_view, m_enc, m_base_offset, m_index, 0, m_index.Length))
|
|
return null;
|
|
m_base_offset += m_index.Length;
|
|
if (offsets.Length != ReadEncrypted (m_view, m_enc, m_base_offset, offsets, 0, offsets.Length))
|
|
return null;
|
|
m_offset_table = new uint[offset_count];
|
|
Buffer.BlockCopy (offsets, 0, m_offset_table, 0, offsets.Length);
|
|
|
|
m_base_offset += offsets.Length;
|
|
m_base_offset = (m_base_offset + 0xFFF) & ~0xFFF;
|
|
|
|
m_dir.Capacity = offset_count;
|
|
ReadDir ("", 0, 1);
|
|
return m_dir.Count > 0 ? m_dir : null;
|
|
}
|
|
|
|
private void ReadDir (string root, int entry_index, int count)
|
|
{
|
|
int current_offset = entry_index * 0x20;
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
string name = Binary.GetCString (m_index, current_offset, 0x14);
|
|
int flags = LittleEndian.ToInt32 (m_index, current_offset+0x14);
|
|
int offset = LittleEndian.ToInt32 (m_index, current_offset+0x18);
|
|
uint size = LittleEndian.ToUInt32 (m_index, current_offset+0x1c);
|
|
current_offset += 0x20;
|
|
name = Path.Combine (root, name);
|
|
if (0 == (flags & 0x10000))
|
|
{
|
|
if (offset > entry_index)
|
|
ReadDir (name, (int)offset, (int)size);
|
|
continue;
|
|
}
|
|
long entry_offset = m_base_offset + ((long)m_offset_table[offset] << 10);
|
|
var entry = FormatCatalog.Instance.Create<Entry> (name);
|
|
if (entry.CheckPlacement (m_max_offset))
|
|
{
|
|
entry.Offset = entry_offset;
|
|
entry.Size = size;
|
|
m_dir.Add (entry);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
internal class LibUReader : LibIndexReader
|
|
{
|
|
BinaryReader m_input;
|
|
|
|
public LibUReader (ArcView file, Camellia encryption, byte[] header) : 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;
|
|
int aligned_len = (offset_pad + length + 0xF) & ~0xF;
|
|
byte[] aligned_buf;
|
|
int block = 0;
|
|
if (aligned_len == length)
|
|
{
|
|
aligned_buf = buffer;
|
|
block = index;
|
|
}
|
|
else
|
|
{
|
|
aligned_buf = new byte[aligned_len];
|
|
}
|
|
|
|
int read = view.Read (offset - offset_pad, aligned_buf, block, (uint)aligned_len);
|
|
if (read < offset_pad)
|
|
return 0;
|
|
|
|
for (int block_count = aligned_len / 0x10; block_count > 0; --block_count)
|
|
{
|
|
enc.DecryptBlock (offset, aligned_buf, block);
|
|
block += 0x10;
|
|
offset += 0x10;
|
|
}
|
|
if (aligned_buf != buffer)
|
|
Buffer.BlockCopy (aligned_buf, offset_pad, buffer, index, length);
|
|
return Math.Min (length, read-offset_pad);
|
|
}
|
|
|
|
public static Dictionary<string, uint[]> KnownKeys = new Dictionary<string, uint[]>();
|
|
|
|
public override ResourceScheme Scheme
|
|
{
|
|
get { return new LibScheme { KnownKeys = KnownKeys }; }
|
|
set { KnownKeys = ((LibScheme)value).KnownKeys; }
|
|
}
|
|
}
|
|
|
|
internal class EncryptedStream : Stream
|
|
{
|
|
ArcView.Frame m_view;
|
|
Camellia m_enc;
|
|
long m_max_offset;
|
|
long m_position = 0;
|
|
byte[] m_current_block = new byte[BlockLength];
|
|
int m_current_block_length = 0;
|
|
long m_current_block_position = 0;
|
|
|
|
public const int BlockLength = 0x1000;
|
|
|
|
public Camellia Encryption { get { return m_enc; } }
|
|
|
|
public EncryptedStream (ArcView mmap, Camellia encryption)
|
|
{
|
|
m_view = mmap.CreateFrame();
|
|
m_enc = encryption;
|
|
m_max_offset = mmap.MaxOffset;
|
|
}
|
|
|
|
public override int Read (byte[] buf, int index, int count)
|
|
{
|
|
int total_read = 0;
|
|
bool refill_buffer = !(m_position >= m_current_block_position && m_position < m_current_block_position + m_current_block_length);
|
|
while (count > 0 && m_position < m_max_offset)
|
|
{
|
|
if (refill_buffer)
|
|
{
|
|
m_current_block_position = m_position & ~((long)BlockLength-1);
|
|
FillBuffer();
|
|
}
|
|
int src_offset = (int)m_position & (BlockLength-1);
|
|
int available = Math.Min (count, m_current_block_length - src_offset);
|
|
Buffer.BlockCopy (m_current_block, src_offset, buf, index, available);
|
|
m_position += available;
|
|
total_read += available;
|
|
index += available;
|
|
count -= available;
|
|
refill_buffer = true;
|
|
}
|
|
return total_read;
|
|
}
|
|
|
|
private void FillBuffer ()
|
|
{
|
|
m_current_block_length = m_view.Read (m_current_block_position, m_current_block, 0, (uint)BlockLength);
|
|
for (int offset = 0; offset < m_current_block_length; offset += 0x10)
|
|
{
|
|
m_enc.DecryptBlock (m_current_block_position+offset, m_current_block, offset);
|
|
}
|
|
}
|
|
|
|
#region IO.Stream methods
|
|
public override bool CanRead { get { return !m_disposed; } }
|
|
public override bool CanWrite { get { return false; } }
|
|
public override bool CanSeek { get { return !m_disposed; } }
|
|
|
|
public override long Length { get { return m_max_offset; } }
|
|
public override long Position
|
|
{
|
|
get { return m_position; }
|
|
set { m_position = value; }
|
|
}
|
|
|
|
public override long Seek (long pos, SeekOrigin whence)
|
|
{
|
|
if (SeekOrigin.Current == whence)
|
|
m_position += pos;
|
|
else if (SeekOrigin.End == whence)
|
|
m_position = m_max_offset + pos;
|
|
else
|
|
m_position = pos;
|
|
return m_position;
|
|
}
|
|
|
|
public override void Write (byte[] buf, int index, int count)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
|
|
public override void SetLength (long length)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
|
|
public override void Flush ()
|
|
{
|
|
}
|
|
#endregion
|
|
|
|
#region IDisposable methods
|
|
bool m_disposed = false;
|
|
protected override void Dispose (bool disposing)
|
|
{
|
|
if (!m_disposed)
|
|
{
|
|
if (disposing)
|
|
m_view.Dispose();
|
|
m_disposed = true;
|
|
base.Dispose();
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|