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(KiriKiri); added encryption guess based on executable name.

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This commit is contained in:
morkt 2016-09-27 16:52:52 +04:00
parent 518e731499
commit 95a0d8c9bf
1 changed files with 44 additions and 14 deletions
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58
ArcFormats/KiriKiri/ArcXP3.cs
View File

@ -52,10 +52,10 @@ namespace GameRes.Formats.KiriKiri
{
List<Xp3Segment> m_segments = new List<Xp3Segment>();
public bool IsEncrypted { get; set; }
public ICrypt Cipher { get; set; }
public bool IsEncrypted { get; set; }
public ICrypt Cipher { get; set; }
public List<Xp3Segment> Segments { get { return m_segments; } }
public uint Hash { get; set; }
public uint Hash { get; set; }
}
public class Xp3Options : ResourceOptions
@ -71,6 +71,7 @@ namespace GameRes.Formats.KiriKiri
public class Xp3Scheme : ResourceScheme
{
public Dictionary<string, ICrypt> KnownSchemes;
public Dictionary<string, string> ExeMap;
}
// Archive version 1: encrypt file first, then calculate checksum
@ -96,18 +97,10 @@ namespace GameRes.Formats.KiriKiri
(byte)'X', (byte)'P', (byte)'3', 0x0d, 0x0a, 0x20, 0x0a, 0x1a, 0x8b, 0x67, 0x01
};
public override ResourceScheme Scheme
{
get { return new Xp3Scheme { KnownSchemes = KnownSchemes }; }
set { KnownSchemes = ((Xp3Scheme)value).KnownSchemes; }
}
public bool ForceEncryptionQuery = true;
private static readonly ICrypt NoCryptAlgorithm = new NoCrypt();
public static Dictionary<string, ICrypt> KnownSchemes = new Dictionary<string, ICrypt>();
public override ArcFile TryOpen (ArcView file)
{
long base_offset = 0;
@ -146,7 +139,7 @@ namespace GameRes.Formats.KiriKiri
header_stream = ZLibCompressor.DeCompress (input);
}
var crypt_algorithm = new Lazy<ICrypt> (QueryCryptAlgorithm, false);
var crypt_algorithm = new Lazy<ICrypt> (() => QueryCryptAlgorithm (file), false);
var filename_map = new Dictionary<uint, string>();
var dir = new List<Entry>();
@ -461,8 +454,11 @@ NextEntry:
return new GUI.WidgetXP3();
}
ICrypt QueryCryptAlgorithm ()
ICrypt QueryCryptAlgorithm (ArcView file)
{
var alg = GuessCryptAlgorithm (file);
if (null != alg)
return alg;
var options = Query<Xp3Options> (arcStrings.XP3EncryptedNotice);
return options.Scheme;
}
@ -500,7 +496,7 @@ NextEntry:
bool compress_contents = xp3_options.CompressContents;
bool retain_dirs = xp3_options.RetainDirs;
bool use_encryption = scheme != NoCryptAlgorithm;
bool use_encryption = !(scheme is NoCrypt);
using (var writer = new BinaryWriter (output, Encoding.ASCII, true))
{
@ -750,6 +746,40 @@ NextEntry:
return false;
return true;
}
ICrypt GuessCryptAlgorithm (ArcView file)
{
if (0 == KiriKiriScheme.ExeMap.Count)
return null;
var exe_pattern = VFS.CombinePath (VFS.GetDirectoryName (file.Name), "*.exe");
foreach (var exe in VFS.GetFiles (exe_pattern).Select (e => Path.GetFileName (e.Name)))
{
string title;
if (KiriKiriScheme.ExeMap.TryGetValue (exe, out title))
{
Settings.Default.XP3Scheme = title;
return GetScheme (title);
}
}
return null;
}
static Xp3Scheme KiriKiriScheme = new Xp3Scheme
{
KnownSchemes = new Dictionary<string, ICrypt>(),
ExeMap = new Dictionary<string, string>(),
};
public static IDictionary<string, ICrypt> KnownSchemes
{
get { return KiriKiriScheme.KnownSchemes; }
}
public override ResourceScheme Scheme
{
get { return KiriKiriScheme; }
set { KiriKiriScheme = (Xp3Scheme)value; }
}
}
internal class Xp3Stream : Stream