mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-27 07:34:00 +08:00
614 lines
22 KiB
C#
614 lines
22 KiB
C#
//! \file ArcNOA.cs
|
|
//! \date Thu Apr 23 15:57:17 2015
|
|
//! \brief Entis GLS engine archives implementation.
|
|
//
|
|
// Copyright (C) 2015-2018 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.Diagnostics;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Xml;
|
|
using GameRes.Formats.Strings;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.Entis
|
|
{
|
|
internal class NoaOptions : ResourceOptions
|
|
{
|
|
public string Scheme { get; set; }
|
|
public string PassPhrase { get; set; }
|
|
}
|
|
|
|
internal class NoaEntry : Entry
|
|
{
|
|
public byte[] Extra;
|
|
public uint Encryption;
|
|
public uint Attr;
|
|
}
|
|
|
|
internal class NoaArchive : ArcFile
|
|
{
|
|
public string Password;
|
|
|
|
public NoaArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, string password = null)
|
|
: base (arc, impl, dir)
|
|
{
|
|
Password = password;
|
|
}
|
|
}
|
|
|
|
[Serializable]
|
|
public class NoaScheme : ResourceScheme
|
|
{
|
|
public Dictionary<string, Dictionary<string, string>> KnownKeys;
|
|
}
|
|
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class NoaOpener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "NOA"; } }
|
|
public override string Description { get { return "Entis GLS engine resource archive"; } }
|
|
public override uint Signature { get { return 0x69746e45; } } // 'Enti'
|
|
public override bool IsHierarchic { get { return true; } }
|
|
public override bool CanWrite { get { return false; } }
|
|
|
|
public NoaOpener ()
|
|
{
|
|
Extensions = new string[] { "noa", "dat", "rsa", "arc", "emc" };
|
|
Signatures = new uint[] { 0x69746E45, 0x54534956 };
|
|
Settings = new[] { NoaEncoding };
|
|
ContainedFormats = new[] { "ERI", "EMI", "MIO", "EMS", "TXT" };
|
|
}
|
|
|
|
EncodingSetting NoaEncoding = new EncodingSetting ("NOAEncodingCP", "DefaultEncoding");
|
|
|
|
public static Dictionary<string, Dictionary<string, string>> KnownKeys =
|
|
new Dictionary<string, Dictionary<string, string>>();
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
if (!file.View.AsciiEqual (0, "Entis\x1a") && !file.View.AsciiEqual (0, "VIST\x1a"))
|
|
return null;
|
|
uint id = file.View.ReadUInt32 (8);
|
|
if (0x02000400 != id)
|
|
return null;
|
|
bool old_format = file.View.AsciiEqual (0x10, "EMSAC-Binary Archive");
|
|
Encoding enc = old_format ? Encodings.cp932 : NoaEncoding.Get<Encoding>();
|
|
var reader = new IndexReader (file, enc);
|
|
if (!reader.ParseRoot() || 0 == reader.Dir.Count)
|
|
return null;
|
|
if (reader.HasEncrypted)
|
|
{
|
|
var password = GetArcPassword (file.Name);
|
|
if (!string.IsNullOrEmpty (password))
|
|
return new NoaArchive (file, this, reader.Dir, password);
|
|
}
|
|
return new ArcFile (file, this, reader.Dir);
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
var nent = entry as NoaEntry;
|
|
if (null == nent)
|
|
return arc.File.CreateStream (entry.Offset, entry.Size);
|
|
ulong size = arc.File.View.ReadUInt64 (entry.Offset+8);
|
|
if (size > int.MaxValue)
|
|
throw new FileSizeException();
|
|
if (size <= 4)
|
|
return Stream.Null;
|
|
|
|
if (EncType.ERISACode == nent.Encryption)
|
|
{
|
|
var enc = arc.File.CreateStream (entry.Offset+0x10, (uint)size-4);
|
|
return new ErisaNemesisStream (enc, (int)entry.Size);
|
|
}
|
|
|
|
var narc = arc as NoaArchive;
|
|
var input = arc.File.CreateStream (entry.Offset+0x10, (uint)size);
|
|
if (EncType.Raw == nent.Encryption || null == narc || null == narc.Password)
|
|
return input;
|
|
|
|
if (EncType.BSHFCrypt == nent.Encryption)
|
|
{
|
|
using (input)
|
|
return DecodeBSHF (input, narc.Password);
|
|
}
|
|
Trace.WriteLine (string.Format ("{0}: encryption scheme 0x{1:x8} not implemented",
|
|
nent.Name, nent.Encryption));
|
|
return input;
|
|
}
|
|
|
|
string GetArcPassword (string arc_name)
|
|
{
|
|
var title = FormatCatalog.Instance.LookupGame (arc_name, @"..\*.exe");
|
|
string password = null;
|
|
if (string.IsNullOrEmpty (title) || !KnownKeys.ContainsKey (title))
|
|
{
|
|
password = ExtractNoaPassword (arc_name);
|
|
if (password != null)
|
|
return password;
|
|
var options = Query<NoaOptions> (arcStrings.ArcEncryptedNotice);
|
|
if (!string.IsNullOrEmpty (options.PassPhrase))
|
|
{
|
|
return options.PassPhrase;
|
|
}
|
|
title = options.Scheme;
|
|
}
|
|
if (!string.IsNullOrEmpty (title))
|
|
{
|
|
Dictionary<string, string> filemap;
|
|
if (KnownKeys.TryGetValue (title, out filemap))
|
|
{
|
|
var filename = Path.GetFileName (arc_name).ToLowerInvariant();
|
|
filemap.TryGetValue (filename, out password);
|
|
}
|
|
}
|
|
return password;
|
|
}
|
|
|
|
string ExtractNoaPassword (string arc_name)
|
|
{
|
|
if (VFS.IsVirtual)
|
|
return null;
|
|
var dir = VFS.GetDirectoryName (arc_name);
|
|
var noa_name = Path.GetFileName (arc_name);
|
|
var parent_dir = Directory.GetParent (dir).FullName;
|
|
var exe_files = VFS.GetFiles (VFS.CombinePath (parent_dir, "*.exe")).Concat (VFS.GetFiles (VFS.CombinePath (dir, "*.exe")));
|
|
foreach (var exe_entry in exe_files)
|
|
{
|
|
try
|
|
{
|
|
using (var exe = new ExeFile.ResourceAccessor (exe_entry.Name))
|
|
{
|
|
var cotomi = exe.GetResource ("IDR_COTOMI", "#10");
|
|
if (null == cotomi)
|
|
continue;
|
|
using (var res = new MemoryStream (cotomi))
|
|
using (var input = new ErisaNemesisStream (res))
|
|
{
|
|
var xml = new XmlDocument();
|
|
xml.Load (input);
|
|
var password = XmlFindArchiveKey (xml, noa_name);
|
|
if (password != null)
|
|
return password;
|
|
}
|
|
}
|
|
}
|
|
catch { /* ignore errors */ }
|
|
}
|
|
return null;
|
|
}
|
|
|
|
string XmlFindArchiveKey (XmlDocument xml, string filename)
|
|
{
|
|
foreach (XmlNode archive in xml.DocumentElement.SelectNodes ("archive[@path and @key]"))
|
|
{
|
|
var attr = archive.Attributes;
|
|
var path = attr["path"].Value;
|
|
if (VFS.IsPathEqualsToFileName (path, filename))
|
|
return attr["key"].Value;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
Stream DecodeBSHF (Stream input, string password)
|
|
{
|
|
uint nTotalBytes = (uint)input.Length - 4;
|
|
var pBSHF = new BSHFDecodeContext (0x10000);
|
|
pBSHF.AttachInputFile (input);
|
|
pBSHF.PrepareToDecodeBSHFCode (password);
|
|
|
|
byte[] buf = new byte[nTotalBytes];
|
|
uint decoded = pBSHF.DecodeBSHFCodeBytes (buf, nTotalBytes);
|
|
if (decoded < nTotalBytes)
|
|
throw new EndOfStreamException ("Unexpected end of encrypted stream");
|
|
|
|
return new MemoryStream (buf);
|
|
}
|
|
|
|
public override ResourceOptions GetDefaultOptions ()
|
|
{
|
|
return new NoaOptions {
|
|
Scheme = Properties.Settings.Default.NOAScheme,
|
|
PassPhrase = Properties.Settings.Default.NOAPassPhrase,
|
|
};
|
|
}
|
|
|
|
public override object GetAccessWidget ()
|
|
{
|
|
return new GUI.WidgetNOA();
|
|
}
|
|
|
|
internal static class EncType
|
|
{
|
|
public const uint Raw = 0x00000000;
|
|
public const uint ERISACode = 0x80000010;
|
|
public const uint BSHFCrypt = 0x40000000;
|
|
public const uint SimpleCrypt32 = 0x20000000;
|
|
public const uint ERISACrypt = 0xC0000010;
|
|
public const uint ERISACrypt32 = 0xA0000010;
|
|
}
|
|
|
|
internal class IndexReader
|
|
{
|
|
ArcView m_file;
|
|
List<Entry> m_dir = new List<Entry>();
|
|
bool m_found_encrypted = false;
|
|
|
|
const char PathSeparatorChar = '/';
|
|
|
|
public List<Entry> Dir { get { return m_dir; } }
|
|
|
|
public bool HasEncrypted { get { return m_found_encrypted; } }
|
|
|
|
public Encoding Encoding { get; set; }
|
|
|
|
public IndexReader (ArcView file, Encoding enc)
|
|
{
|
|
m_file = file;
|
|
Encoding = enc;
|
|
}
|
|
|
|
public bool ParseRoot ()
|
|
{
|
|
return ParseDirEntry (0x40, "");
|
|
}
|
|
|
|
private bool ParseDirEntry (long dir_offset, string cur_dir)
|
|
{
|
|
if (!m_file.View.AsciiEqual (dir_offset, "DirEntry"))
|
|
return false;
|
|
long size = m_file.View.ReadInt64 (dir_offset+8);
|
|
if (size <= 0 || size > int.MaxValue)
|
|
return false;
|
|
if ((uint)size > m_file.View.Reserve (dir_offset+8, (uint)size))
|
|
return false;
|
|
long base_offset = dir_offset;
|
|
dir_offset += 0x10;
|
|
int count = m_file.View.ReadInt32 (dir_offset);
|
|
dir_offset += 4;
|
|
if (m_dir.Capacity < m_dir.Count+count)
|
|
m_dir.Capacity = m_dir.Count+count;
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
var entry = new NoaEntry();
|
|
entry.Size = m_file.View.ReadUInt32 (dir_offset);
|
|
dir_offset += 8;
|
|
|
|
entry.Attr = m_file.View.ReadUInt32 (dir_offset);
|
|
dir_offset += 4;
|
|
|
|
entry.Encryption = m_file.View.ReadUInt32 (dir_offset);
|
|
m_found_encrypted = m_found_encrypted || (EncType.Raw != entry.Encryption && EncType.ERISACode != entry.Encryption);
|
|
bool is_packed = EncType.ERISACode == entry.Encryption;
|
|
dir_offset += 4;
|
|
|
|
entry.Offset = base_offset + m_file.View.ReadInt64 (dir_offset);
|
|
if (!is_packed && !entry.CheckPlacement (m_file.MaxOffset))
|
|
{
|
|
entry.Size = (uint)(m_file.MaxOffset - entry.Offset);
|
|
}
|
|
dir_offset += 0x10;
|
|
|
|
uint extra_length = m_file.View.ReadUInt32 (dir_offset);
|
|
dir_offset += 4;
|
|
if (extra_length > 0 && 0 == (entry.Attr & 0x70))
|
|
{
|
|
entry.Extra = m_file.View.ReadBytes (dir_offset, extra_length);
|
|
if (entry.Extra.Length != extra_length)
|
|
return false;
|
|
}
|
|
dir_offset += extra_length;
|
|
uint name_length = m_file.View.ReadUInt32 (dir_offset);
|
|
dir_offset += 4;
|
|
|
|
string name = m_file.View.ReadString (dir_offset, name_length, Encoding);
|
|
dir_offset += name_length;
|
|
|
|
if (string.IsNullOrEmpty (cur_dir))
|
|
entry.Name = name;
|
|
else
|
|
entry.Name = cur_dir + PathSeparatorChar + name;
|
|
entry.Type = FormatCatalog.Instance.GetTypeFromName (name);
|
|
if (0x10 == entry.Attr)
|
|
{
|
|
if (!ParseDirEntry (entry.Offset+0x10, entry.Name))
|
|
return false;
|
|
}
|
|
else if (0x20 == entry.Attr || 0x40 == entry.Attr)
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
m_dir.Add (entry);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
public override ResourceScheme Scheme
|
|
{
|
|
get { return new NoaScheme { KnownKeys = KnownKeys }; }
|
|
set { KnownKeys = ((NoaScheme)value).KnownKeys; }
|
|
}
|
|
}
|
|
|
|
internal abstract class ERISADecodeContext
|
|
{
|
|
protected int m_nIntBufCount;
|
|
protected uint m_dwIntBuffer;
|
|
protected uint m_nBufferingSize;
|
|
protected uint m_nBufCount;
|
|
protected byte[] m_ptrBuffer;
|
|
protected int m_ptrNextBuf;
|
|
|
|
protected Stream m_pFile;
|
|
protected ERISADecodeContext m_pContext;
|
|
|
|
public ERISADecodeContext (uint nBufferingSize)
|
|
{
|
|
m_nIntBufCount = 0;
|
|
m_nBufferingSize = (nBufferingSize + 0x03) & ~0x03u;
|
|
m_nBufCount = 0;
|
|
m_ptrBuffer = new byte[nBufferingSize];
|
|
m_pFile = null;
|
|
m_pContext = null;
|
|
}
|
|
|
|
public void AttachInputFile (Stream file)
|
|
{
|
|
m_pFile = file;
|
|
m_pContext = null;
|
|
}
|
|
|
|
public void AttachInputContext (ERISADecodeContext context)
|
|
{
|
|
m_pFile = null;
|
|
m_pContext = context;
|
|
}
|
|
|
|
public uint ReadNextData (byte[] ptrBuffer, uint nBytes)
|
|
{
|
|
if (m_pFile != null)
|
|
{
|
|
return (uint)m_pFile.Read (ptrBuffer, 0, (int)nBytes);
|
|
}
|
|
else if (m_pContext != null)
|
|
{
|
|
return m_pContext.DecodeBytes (ptrBuffer, nBytes);
|
|
}
|
|
else
|
|
{
|
|
throw new ApplicationException ("Uninitialized ERISA encryption context");
|
|
}
|
|
}
|
|
|
|
public abstract uint DecodeBytes (Array ptrDst, uint nCount);
|
|
|
|
protected bool PrefetchBuffer()
|
|
{
|
|
if (0 == m_nIntBufCount)
|
|
{
|
|
if (0 == m_nBufCount)
|
|
{
|
|
m_ptrNextBuf = 0; // m_ptrBuffer;
|
|
m_nBufCount = ReadNextData (m_ptrBuffer, m_nBufferingSize);
|
|
if (0 == m_nBufCount)
|
|
{
|
|
return false;
|
|
}
|
|
if (0 != (m_nBufCount & 0x03))
|
|
{
|
|
uint i = m_nBufCount;
|
|
m_nBufCount += 4 - (m_nBufCount & 0x03);
|
|
while (i < m_nBufCount)
|
|
m_ptrBuffer[i ++] = 0;
|
|
}
|
|
}
|
|
m_nIntBufCount = 32;
|
|
m_dwIntBuffer =
|
|
((uint)m_ptrBuffer[m_ptrNextBuf] << 24) | ((uint)m_ptrBuffer[m_ptrNextBuf+1] << 16)
|
|
| ((uint)m_ptrBuffer[m_ptrNextBuf+2] << 8) | (uint)m_ptrBuffer[m_ptrNextBuf+3];
|
|
m_ptrNextBuf += 4;
|
|
m_nBufCount -= 4;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public void FlushBuffer ()
|
|
{
|
|
m_nIntBufCount = 0;
|
|
m_nBufCount = 0;
|
|
}
|
|
|
|
public int GetABit ()
|
|
{
|
|
if (!PrefetchBuffer())
|
|
{
|
|
return 1;
|
|
}
|
|
int nValue = ((int)m_dwIntBuffer) >> 31;
|
|
--m_nIntBufCount;
|
|
m_dwIntBuffer <<= 1;
|
|
return nValue;
|
|
}
|
|
|
|
public uint GetNBits (int n)
|
|
{
|
|
uint nCode = 0;
|
|
while (n != 0)
|
|
{
|
|
if (!PrefetchBuffer())
|
|
break;
|
|
|
|
int nCopyBits = Math.Min (n, m_nIntBufCount);
|
|
nCode = (nCode << nCopyBits) | (m_dwIntBuffer >> (32 - nCopyBits));
|
|
n -= nCopyBits;
|
|
m_nIntBufCount -= nCopyBits;
|
|
m_dwIntBuffer <<= nCopyBits;
|
|
}
|
|
return nCode;
|
|
}
|
|
}
|
|
|
|
internal class BSHFDecodeContext : ERISADecodeContext
|
|
{
|
|
ERIBshfBuffer m_pBshfBuf;
|
|
uint m_dwBufPos;
|
|
|
|
public BSHFDecodeContext (uint nBufferingSize) : base (nBufferingSize)
|
|
{
|
|
m_pBshfBuf = null;
|
|
}
|
|
|
|
public void PrepareToDecodeBSHFCode (string pszPassword)
|
|
{
|
|
if (null == m_pBshfBuf)
|
|
{
|
|
m_pBshfBuf = new ERIBshfBuffer();
|
|
}
|
|
if (string.IsNullOrEmpty (pszPassword))
|
|
{
|
|
pszPassword = " ";
|
|
}
|
|
int char_count = Encoding.ASCII.GetByteCount (pszPassword);
|
|
int length = Math.Max (char_count, 32);
|
|
var pass_bytes = new byte[length];
|
|
char_count = Encoding.ASCII.GetBytes (pszPassword, 0, pszPassword.Length, pass_bytes, 0);
|
|
if (char_count < 32)
|
|
{
|
|
pass_bytes[char_count++] = 0x1b;
|
|
for (int i = char_count; i < 32; ++i)
|
|
{
|
|
pass_bytes[i] = (byte)(pass_bytes[i % char_count] + pass_bytes[i - 1]);
|
|
}
|
|
}
|
|
m_pBshfBuf.m_strPassword = pass_bytes;
|
|
m_pBshfBuf.m_dwPassOffset = 0;
|
|
m_dwBufPos = 32;
|
|
}
|
|
|
|
public override uint DecodeBytes (Array ptrDst, uint nCount)
|
|
{
|
|
return DecodeBSHFCodeBytes (ptrDst as byte[], nCount);
|
|
}
|
|
|
|
public uint DecodeBSHFCodeBytes (byte[] ptrDst, uint nCount)
|
|
{
|
|
uint nDecoded = 0;
|
|
while (nDecoded < nCount)
|
|
{
|
|
if (m_dwBufPos >= 32)
|
|
{
|
|
for (int i = 0; i < 32; ++i)
|
|
{
|
|
if (0 == m_nBufCount)
|
|
{
|
|
m_ptrNextBuf = 0;
|
|
m_nBufCount = ReadNextData (m_ptrBuffer, m_nBufferingSize);
|
|
if (0 == m_nBufCount)
|
|
{
|
|
return nDecoded;
|
|
}
|
|
}
|
|
m_pBshfBuf.m_srcBSHF[i] = m_ptrBuffer[m_ptrNextBuf++];
|
|
m_nBufCount--;
|
|
}
|
|
m_pBshfBuf.DecodeBuffer();
|
|
m_dwBufPos = 0;
|
|
}
|
|
ptrDst[nDecoded++] = m_pBshfBuf.m_bufBSHF[m_dwBufPos++];
|
|
}
|
|
return nDecoded;
|
|
}
|
|
}
|
|
|
|
internal class ERIBshfBuffer
|
|
{
|
|
public byte[] m_strPassword;
|
|
public uint m_dwPassOffset = 0;
|
|
public byte[] m_bufBSHF = new byte[32];
|
|
public byte[] m_srcBSHF = new byte[32];
|
|
public byte[] m_maskBSHF = new byte[32];
|
|
|
|
public void DecodeBuffer ()
|
|
{
|
|
int nPassLen = m_strPassword.Length;
|
|
if ((int)m_dwPassOffset >= nPassLen)
|
|
{
|
|
m_dwPassOffset = 0;
|
|
}
|
|
for (int i = 0; i < 32; ++i)
|
|
{
|
|
m_bufBSHF[i] = 0;
|
|
m_maskBSHF[i] = 0;
|
|
}
|
|
int iPos = (int) m_dwPassOffset++;
|
|
int iBit = 0;
|
|
for (int i = 0; i < 256; ++i)
|
|
{
|
|
iBit = (iBit + m_strPassword[iPos++]) & 0xFF;
|
|
if (iPos >= nPassLen)
|
|
{
|
|
iPos = 0;
|
|
}
|
|
int iOffset = (iBit >> 3);
|
|
int iMask = (0x80 >> (iBit & 0x07));
|
|
while (0xFF == m_maskBSHF[iOffset])
|
|
{
|
|
iBit = (iBit + 8) & 0xFF;
|
|
iOffset = (iBit >> 3);
|
|
}
|
|
while (0 != (m_maskBSHF[iOffset] & iMask))
|
|
{
|
|
iBit ++;
|
|
iMask >>= 1;
|
|
if (0 == iMask)
|
|
{
|
|
iBit = (iBit + 8) & 0xFF;
|
|
iOffset = (iBit >> 3);
|
|
iMask = 0x80;
|
|
}
|
|
}
|
|
Debug.Assert (iMask != 0);
|
|
m_maskBSHF[iOffset] |= (byte) iMask;
|
|
|
|
if (0 != (m_srcBSHF[(i >> 3)] & (0x80 >> (i & 0x07))))
|
|
{
|
|
m_bufBSHF[iOffset] |= (byte)iMask;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
[Export(typeof(ResourceAlias))]
|
|
[ExportMetadata("Extension", "GDS")]
|
|
[ExportMetadata("Target", "TXT")]
|
|
public class GdsFormat : ResourceAlias { }
|
|
}
|