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312 lines
14 KiB
C#
312 lines
14 KiB
C#
//! \file ArcLIB.cs
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//! \date Thu Jun 25 06:46:51 2015
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//! \brief Malie System archive implementation.
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//
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// Copyright (C) 2015 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Linq;
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using GameRes.Encryption;
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using GameRes.Utility;
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namespace GameRes.Formats.Malie
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{
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[Export(typeof(ArchiveFormat))]
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public class LibOpener : ArchiveFormat
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{
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public override string Tag { get { return "LIB"; } }
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public override string Description { get { return "Malie engine resource archive"; } }
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public override uint Signature { get { return 0x0042494C; } } // 'LIB'
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public override bool IsHierarchic { get { return true; } }
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public override bool CanCreate { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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var reader = new Reader (file);
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if (reader.ReadIndex ("", 0, (uint)file.MaxOffset))
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return new ArcFile (file, this, reader.Dir);
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else
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return null;
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}
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internal class Reader
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{
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ArcView.Frame m_view;
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List<Entry> m_dir = new List<Entry>();
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public List<Entry> Dir { get { return m_dir; } }
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public Reader (ArcView file)
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{
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m_view = file.View;
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}
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public bool ReadIndex (string root, long base_offset, uint size)
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{
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uint signature = m_view.ReadUInt32 (base_offset);
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if (0x0042494C != signature)
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return false;
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int count = m_view.ReadInt16 (base_offset + 8);
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if (count <= 0)
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return false;
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long index_offset = base_offset + 0x10;
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uint index_size = (uint)(0x30 * count);
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if (index_size > size)
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return false;
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if (index_size > m_view.Reserve (index_offset, index_size))
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return false;
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long data_offset = index_offset + index_size;
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if (m_dir.Capacity < m_dir.Count + count)
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m_dir.Capacity = m_dir.Count + count;
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for (int i = 0; i < count; ++i)
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{
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string name = m_view.ReadString (index_offset, 0x24);
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uint entry_size = m_view.ReadUInt32 (index_offset+0x24);
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long offset = base_offset + m_view.ReadUInt32 (index_offset+0x28);
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index_offset += 0x30;
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string ext = Path.GetExtension (name);
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name = Path.Combine (root, name);
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if (string.IsNullOrEmpty (ext) && ReadIndex (name, offset, entry_size))
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{
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continue;
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}
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if (offset < data_offset || offset + entry_size > base_offset + size)
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return false;
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var entry = FormatCatalog.Instance.CreateEntry (name);
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entry.Offset = offset;
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entry.Size = entry_size;
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m_dir.Add (entry);
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}
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return true;
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}
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}
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}
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public class MalieArchive : ArcFile
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{
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public readonly Camellia Encryption;
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public MalieArchive (ArcView file, ArchiveFormat format, ICollection<Entry> dir, Camellia encryption)
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: base (file, format, dir)
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{
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Encryption = encryption;
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class DatOpener : ArchiveFormat
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{
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public override string Tag { get { return "LIBP"; } }
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public override string Description { get { return "Malie engine encrypted archive"; } }
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public override uint Signature { get { return 0; } }
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public override bool IsHierarchic { get { return true; } }
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public override bool CanCreate { get { return false; } }
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public DatOpener ()
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{
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Extensions = new string[] { "dat" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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var reader = new Reader (file);
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foreach (var key in KnownKeys.Values)
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{
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var encryption = new Camellia (key);
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if (reader.ReadIndex (encryption))
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return new MalieArchive (file, this, reader.Dir, encryption);
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}
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return null;
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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var march = arc as MalieArchive;
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if (null == march)
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return arc.File.CreateStream (entry.Offset, entry.Size);
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var data = new byte[entry.Size];
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ReadEncrypted (arc.File.View, march.Encryption, entry.Offset, data, 0, (int)entry.Size);
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return new MemoryStream (data);
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}
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internal class Reader
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{
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ArcView.Frame m_view;
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readonly long m_max_offset;
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long m_base_offset;
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Camellia m_enc;
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List<Entry> m_dir = new List<Entry>();
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public List<Entry> Dir { get { return m_dir; } }
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public Reader (ArcView file)
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{
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m_view = file.View;
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m_max_offset = file.MaxOffset;
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}
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byte[] m_header = new byte[0x10];
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byte[] m_index;
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uint[] m_offset_table;
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public bool ReadIndex (Camellia encryption)
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{
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m_base_offset = 0;
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m_enc = encryption;
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if (0x10 != ReadEncrypted (m_view, m_enc, m_base_offset, m_header, 0, 0x10))
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return false;
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if (!Binary.AsciiEqual (m_header, 0, "LIBP"))
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return false;
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int count = LittleEndian.ToInt32 (m_header, 4);
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if (count <= 0)
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return false;
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int offset_count = LittleEndian.ToInt32 (m_header, 8);
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m_index = new byte[0x20 * count];
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var offsets = new byte[4 * offset_count];
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m_base_offset += 0x10;
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if (m_index.Length != ReadEncrypted (m_view, m_enc, m_base_offset, m_index, 0, m_index.Length))
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return false;
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m_base_offset += m_index.Length;
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if (offsets.Length != ReadEncrypted (m_view, m_enc, m_base_offset, offsets, 0, offsets.Length))
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return false;
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m_offset_table = new uint[offset_count];
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Buffer.BlockCopy (offsets, 0, m_offset_table, 0, offsets.Length);
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m_base_offset += offsets.Length;
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m_base_offset = (m_base_offset + 0xFFF) & ~0xFFF;
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m_dir.Capacity = offset_count;
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ReadDir ("", 0, 1);
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return m_dir.Count > 0;
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}
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private void ReadDir (string root, int entry_index, int count)
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{
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int current_offset = entry_index * 0x20;
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for (int i = 0; i < count; ++i)
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{
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string name = Binary.GetCString (m_index, current_offset, 0x14);
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int flags = LittleEndian.ToInt32 (m_index, current_offset+0x14);
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int offset = LittleEndian.ToInt32 (m_index, current_offset+0x18);
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uint size = LittleEndian.ToUInt32 (m_index, current_offset+0x1c);
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current_offset += 0x20;
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name = Path.Combine (root, name);
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if (0 == (flags & 0x10000))
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{
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if (offset > entry_index)
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ReadDir (name, (int)offset, (int)size);
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continue;
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}
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long entry_offset = m_base_offset + ((long)m_offset_table[offset] << 10);
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var entry = FormatCatalog.Instance.CreateEntry (name);
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if (entry.CheckPlacement (m_max_offset))
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{
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entry.Offset = entry_offset;
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entry.Size = size;
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m_dir.Add (entry);
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}
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}
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}
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}
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private static int ReadEncrypted (ArcView.Frame view, Camellia enc, long offset, byte[] buffer, int index, int length)
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{
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int offset_pad = (int)offset & 0xF;
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int aligned_len = (offset_pad + length + 0xF) & ~0xF;
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byte[] aligned_buf;
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int block = 0;
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if (aligned_len == length)
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{
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aligned_buf = buffer;
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block = index;
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}
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else
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{
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aligned_buf = new byte[aligned_len];
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}
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int read = view.Read (offset - offset_pad, aligned_buf, block, (uint)aligned_len);
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if (read < offset_pad)
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return 0;
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for (int block_count = aligned_len / 0x10; block_count > 0; --block_count)
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{
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enc.DecryptBlock (offset, aligned_buf, block);
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block += 0x10;
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offset += 0x10;
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}
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if (aligned_buf != buffer)
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Buffer.BlockCopy (aligned_buf, offset_pad, buffer, index, length);
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return Math.Min (length, read-offset_pad);
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}
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public static readonly IReadOnlyDictionary<string, uint[]> KnownKeys = new Dictionary<string, uint[]>()
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{
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{ "Paradise Lost", new uint[] {
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0x745A5511, 0xFC188446, 0x6729696A, 0xB7C80D5E, 0x9AA598A4, 0xB8331AAC, 0xBD2B2BA7, 0x28A3BC2C,
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0x06AF3A2D, 0x2A88FE0C, 0x42233394, 0xB4B55BE4, 0xDE164D52, 0xCC525C19, 0x8D565E95, 0x95D39451,
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0xCA28EF0B, 0x26A96629, 0x2E0CC6AB, 0x2F4ACAE9, 0x2D2D56F9, 0x01ABCE8B, 0x4AA23F83, 0x1088CCE5,
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0x99CA5A5A, 0xADF20357, 0xB3149706, 0x635597A5, 0x2F4ACAE9, 0xCA28EF0B, 0x26A96629, 0x2E0CC6AB,
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0x42233394, 0xB4B55BE4, 0x06AF3A2D, 0x2A88FE0C, 0xFC188446, 0x6729696A, 0xB7C80D5E, 0x745A5511,
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0xB8331AAC, 0xBD2B2BA7, 0x28A3BC2C, 0x9AA598A4, 0xAA23F831, 0x088CCE52, 0xD2D56F90, 0x1ABCE8B4,
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0x31497066, 0x35597A56, 0x574E5147, 0x7859354B,
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} },
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{ "Kajiri Kamui Kagura Premier Trial", new uint[] { // 神咒神威神楽 超先行 体験版
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0x146EB6BB, 0xED25AA5F, 0x289548E2, 0x097772BB, 0xBAABAC37, 0xB3A93919, 0x2335262B, 0x983BB0A0,
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0xB95D8A37, 0x5B5DF692, 0xD52F944A, 0xA47104BB, 0xD8505D55, 0xD61BD9D4, 0x9C8C919A, 0x9315CC1D,
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0xE60EEC28, 0x2EAAEB0D, 0xECEA4E46, 0x48CD498A, 0xA91C412E, 0xEE57628D, 0xD6D77DA4, 0xB54BE512,
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0xCA255238, 0x825DDCAE, 0x7586F675, 0x27232466, 0x48CD498A, 0xE60EEC28, 0x2EAAEB0D, 0xECEA4E46,
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0xD52F944A, 0xA47104BB, 0xB95D8A37, 0x5B5DF692, 0xED25AA5F, 0x289548E2, 0x097772BB, 0x146EB6BB,
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0xB3A93919, 0x2335262B, 0x983BB0A0, 0xBAABAC37, 0x6D77DA4B, 0x54BE512A, 0x91C412EE, 0xE57628DD,
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0x586F6752, 0x7232466A, 0x4C573077, 0x61417557,
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} },
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{ "Zettai Meikyuu Grimm", new uint[] { // 絶対迷宮グリム・ディレクターズカット版
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0x4E7821AE, 0xA80DC2D4, 0x8609511B, 0xF13BF262, 0x2EAD1925, 0x22AB3F33, 0x21AE9614, 0xB5BB16A6,
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0xF931273C, 0x10D75406, 0xE16A4304, 0xA88DF89D, 0x8B531756, 0x8C929155, 0x9F9990D7, 0x4B0A5ADD,
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0x2D6EC5A9, 0x8BAB4649, 0x48AACFCC, 0xC86BA585, 0x2A237E27, 0x7E4C49CF, 0x0435D501, 0xB85A90C1,
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0x21825446, 0xFC4EFC98, 0xA324A455, 0x67E66435, 0xC86BA585, 0x2D6EC5A9, 0x8BAB4649, 0x48AACFCC,
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0xE16A4304, 0xA88DF89D, 0xF931273C, 0x10D75406, 0xA80DC2D4, 0x8609511B, 0xF13BF262, 0x4E7821AE,
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0x22AB3F33, 0x21AE9614, 0xB5BB16A6, 0x2EAD1925, 0x435D501B, 0x85A90C12, 0xA237E277, 0xE4C49CF0,
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0x324A4556, 0x7E66435D, 0x2C296B76, 0x2D4C5D5A,
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} },
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{ "Dies irae", new uint[] {
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0x6F388B64, 0xBB5B3676, 0x2317DD18, 0x7CCD3736, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x9B9B379C, 0x45B25DAD, 0x9B3B118B, 0xEE8C3E66, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000, 0xFBA30F99, 0xA6E6CDE7, 0x116C976B, 0x66CEC462,
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0x88C5F746, 0x1F334DCD, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x9B3B118B, 0xEE8C3E66, 0x9B9B379C, 0x45B25DAD, 0xBB5B3676, 0x2317DD18, 0x7CCD3736, 0x6F388B64,
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0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x16C976B6, 0x6CEC462F, 0xBA30F99A, 0x6E6CDE71,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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} },
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};
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}
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}
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