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(QLIE): attempt to extract archive key from game EXE resources.

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This commit is contained in:
morkt 2017-02-22 19:32:02 +04:00
parent 1b6d27061e
commit 16c0daf643
3 changed files with 205 additions and 5 deletions
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1
ArcFormats/ArcFormats.csproj
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@ -97,6 +97,7 @@
<Compile Include="Foster\ArcFA2.cs" />
<Compile Include="Foster\ImageC24.cs" />
<Compile Include="GameSystem\ArcPureMail.cs" />
<Compile Include="Qlie\DelphiDeserializer.cs" />
<Compile Include="RealLive\ArcKOE.cs" />
<Compile Include="Software House Parsley\ArcCG.cs" />
<Compile Include="Artemis\ArcPFS.cs" />

60
ArcFormats/Qlie/ArcQLIE.cs
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@ -2,7 +2,7 @@
//! \date Mon Jun 15 04:03:18 2015
//! \brief QLIE engine archives implementation.
//
// Copyright (C) 2015 by morkt
// Copyright (C) 2015-2017 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
@ -32,6 +32,7 @@ using System.Linq;
using GameRes.Utility;
using GameRes.Formats.Properties;
using GameRes.Formats.Strings;
using GameRes.Formats.Borland;
namespace GameRes.Formats.Qlie
{
@ -136,7 +137,7 @@ namespace GameRes.Formats.Qlie
use_pack_keyfile = key_file != null;
// currently, user is prompted to choose encryption scheme only if there's 'key.fkey' file found.
if (use_pack_keyfile)
arc_key = QueryEncryption();
arc_key = QueryEncryption (file);
// use_pack_keyfile = null != arc_key;
var key_data = file.View.ReadBytes (file.MaxOffset-0x41C, 0x100);
@ -423,10 +424,20 @@ namespace GameRes.Formats.Qlie
return new GUI.WidgetQLIE();
}
byte[] QueryEncryption ()
byte[] QueryEncryption (ArcView file)
{
var title = FormatCatalog.Instance.LookupGame (file.Name, @"..\*.exe");
byte[] key = null;
if (!string.IsNullOrEmpty (title))
key = GetKeyData (title);
if (null == key)
key = GuessKeyData (file.Name);
if (null == key)
{
var options = Query<QlieOptions> (arcStrings.ArcEncryptedNotice);
return options.GameKeyData;
key = options.GameKeyData;
}
return key;
}
static byte[] GetKeyData (string scheme)
@ -457,5 +468,46 @@ namespace GameRes.Formats.Qlie
}
return null;
}
byte[] GuessKeyData (string arc_name)
{
if (VFS.IsVirtual)
return null;
// XXX add button to query dialog like with CatSystem?
var pattern = VFS.CombinePath (VFS.GetDirectoryName (arc_name), @"..\*.exe");
foreach (var file in VFS.GetFiles (pattern))
{
try
{
var key = GetKeyDataFromExe (file.Name);
if (key != null)
return key;
}
catch { /* ignore errors */ }
}
return null;
}
public static byte[] GetKeyDataFromExe (string filename)
{
using (var exe = new ExeFile.ResourceAccessor (filename))
{
var tform = exe.GetResource ("TFORM1", "#10");
if (null == tform || !tform.AsciiEqual (0, "TPF0"))
return null;
using (var input = new BinMemoryStream (tform))
{
var deserializer = new DelphiDeserializer (input);
var form = deserializer.Deserialize();
var image = form.Contents.FirstOrDefault (n => n.Name == "IconKeyImage");
if (null == image)
return null;
var icon = image.Props["Picture.Data"] as byte[];
if (null == icon || icon.Length < 0x106 || !icon.AsciiEqual (0, "\x05TIcon"))
return null;
return new CowArray<byte> (icon, 6, 0x100).ToArray();
}
}
}
}
}

147
ArcFormats/Qlie/DelphiDeserializer.cs Normal file
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@ -0,0 +1,147 @@
//! \file DelphiDeserializer.cs
//! \date Wed Feb 22 15:40:33 2017
//! \brief Borland Delphi binary data deserializer.
//
// Copyright (C) 2017 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.Collections;
using System.Collections.Generic;
using System.Text;
namespace GameRes.Formats.Borland
{
public sealed class DelphiDeserializer
{
IBinaryStream m_input;
public Encoding Encoding { get; set; }
public DelphiDeserializer (IBinaryStream input)
{
m_input = input;
Encoding = Encodings.cp932;
}
public DelphiObject Deserialize ()
{
if (m_input.ReadUInt32() != 0x30465054) // 'TPF0'
return null;
return DeserializeNode();
}
DelphiObject DeserializeNode ()
{
int type_len = m_input.ReadByte();
if (type_len <= 0)
return null;
var node = new DelphiObject();
node.Type = ReadString (type_len);
node.Name = ReadString();
int key_length;
while ((key_length = m_input.ReadUInt8()) > 0)
{
var key = ReadString (key_length);
node.Props[key] = ReadValue();
}
DelphiObject child;
while ((child = DeserializeNode()) != null)
{
node.Contents.Add (child);
}
return node;
}
object ReadValue ()
{
int type = m_input.ReadUInt8();
switch (type)
{
case 2: return (int)m_input.ReadUInt8();
case 3: return (int)m_input.ReadUInt16();
case 5: return ReadLongDouble();
case 6:
case 7: return ReadString();
case 8:
case 9: return true;
case 10: return ReadByteString();
case 11: return ReadStringArray();
case 18: return ReadUnicodeString();
default: throw new System.NotImplementedException();
}
}
string ReadString ()
{
return ReadString (m_input.ReadUInt8());
}
string ReadString (int length)
{
return m_input.ReadCString (length, Encoding);
}
string ReadUnicodeString ()
{
int length = m_input.ReadInt32();
if (length < 0)
throw new InvalidFormatException();
if (0 == length)
return "";
var bytes = m_input.ReadBytes (length * 2);
return Encoding.Unicode.GetString (bytes);
}
byte[] ReadByteString ()
{
int length = m_input.ReadInt32();
if (length < 0)
throw new InvalidFormatException();
if (0 == length)
return new byte[0];
return m_input.ReadBytes (length);
}
IList<string> ReadStringArray ()
{
var list = new List<string>();
int length;
while ((length = m_input.ReadUInt8()) > 0)
{
list.Add (ReadString (length));
}
return list;
}
object ReadLongDouble ()
{
return m_input.ReadBytes (10); // long double deserialization not implemented
}
}
public class DelphiObject
{
public string Type;
public string Name;
public IDictionary Props = new Hashtable();
public IList<DelphiObject> Contents = new List<DelphiObject>();
}
}