implemented older versions of Xuse archives.

ArcFormats/ArcFormats.csproj

@@ -250,6 +250,7 @@
     <Compile Include="Xuse\ArcBIN.cs" />
     <Compile Include="Xuse\ArcGD.cs" />
     <Compile Include="Xuse\ArcWAG.cs" />
+    <Compile Include="Xuse\ArcXARC.cs" />
     <Compile Include="Xuse\ArcXuse.cs" />
     <Compile Include="Yuka\ArcYKC.cs" />
     <Compile Include="BlackCyc\AudioVAW.cs" />

ArcFormats/Xuse/ArcWAG.cs

@@ -55,151 +55,42 @@ namespace GameRes.Formats.Xuse
 
         public WagOpener ()
         {
-            Extensions = new string[] { "wag", "4ag" };
+            Extensions = new string[] { "wag", "4ag", "004" };
             Signatures = new uint[] { 0x40474157, 0x34464147 }; // 'GAF4'
         }
 
         public override ArcFile TryOpen (ArcView file)
         {
-            if (0x0300 != file.View.ReadUInt16 (4))
+            int version = file.View.ReadUInt16 (4);
+            if (0x300 != version && 0x200 != version)
                 return null;
             int count = file.View.ReadInt32 (0x46);
             if (!IsSaneCount (count))
                 return null;
 
-            byte[] title = file.View.ReadBytes (6, 0x40);
+            var reader = new IndexReader (file, version, count);
-            if (0x40 != title.Length)
+            var dir = reader.ReadIndex();
+            if (null == dir)
                 return null;
-            int title_length = Array.IndexOf<byte> (title, 0);
+            return new WagArchive (file, this, dir, reader.DataKey);
-            if (-1 == title_length)
-                title_length = title.Length;
-            string arc_filename = Path.GetFileName (file.Name).ToLowerInvariant();
-            byte[] bin_filename = Encodings.cp932.GetBytes (arc_filename);
-
-            byte[] name_key = GenerateKey (bin_filename);
-
-            uint key_sum = (uint)name_key.Select (x => (int)x).Sum();
-            uint index_offset = 0x200 + key_sum;
-            for (int i = 0; i < name_key.Length; ++i)
-            {
-                index_offset ^= name_key[i];
-                index_offset = Binary.RotR (index_offset, 1);
-            }
-            for (int i = 0; i < name_key.Length; ++i)
-            {
-                index_offset ^= name_key[i];
-                index_offset = Binary.RotR (index_offset, 1);
-            }
-            index_offset %= 0x401;
-
-            index_offset += 0x4A;
-            byte[] index = file.View.ReadBytes (index_offset, (uint)(4*count));
-            if (index.Length != 4*count)
-                return null;
-
-            byte[] index_key = new byte[index.Length];
-            for (int i = 0; i < index_key.Length; ++i)
-            {
-                int v = name_key[(i+1) % name_key.Length] ^ (name_key[i % name_key.Length] + (i & 0xFF));
-                index_key[i] = (byte)(count + v);
-            }
-            Decrypt (index_offset, index_key, index);
-
-            var dir = new List<Entry> (count);
-            int current_offset = 0;
-            uint next_offset = LittleEndian.ToUInt32 (index, current_offset);
-            byte[] data_key = GenerateKey (title, title_length);
-            string base_filename = Path.GetFileNameWithoutExtension (arc_filename);
-            byte[] chunk_buf = new byte[8];
-            byte[] filename_buf = new byte[0x40];
-            for (int i = 0; i < count; ++i)
-            {
-                current_offset += 4;
-                uint entry_offset = next_offset;
-                if (entry_offset >= file.MaxOffset)
-                    return null;
-                if (i + 1 == count)
-                    next_offset = (uint)file.MaxOffset;
-                else
-                    next_offset = LittleEndian.ToUInt32 (index, current_offset);
-                uint entry_size = next_offset - entry_offset;
-                if (8 != file.View.Read (entry_offset, chunk_buf, 0, 8))
-                    return null;
-
-                Decrypt (entry_offset, data_key, chunk_buf);
-                if (!Binary.AsciiEqual (chunk_buf, "DSET"))
-                    return null;
-                uint chunk_offset = entry_offset + 10;
-                int chunk_count = LittleEndian.ToInt32 (chunk_buf, 4);
-                string filename = null;
-                string type = null;
-                for (int chunk = 0; chunk < chunk_count; ++chunk)
-                {
-                    if (8 != file.View.Read (chunk_offset, chunk_buf, 0, 8))
-                        return null;
-                    Decrypt (chunk_offset, data_key, chunk_buf);
-                    int chunk_size = LittleEndian.ToInt32 (chunk_buf, 4);
-                    if (chunk_size <= 0)
-                        return null;
-                    if (Binary.AsciiEqual (chunk_buf, "PICT"))
-                    {
-                        if (null == type)
-                        {
-                            type = "image";
-                            entry_offset = chunk_offset + 0x10;
-                            entry_size = (uint)chunk_size - 6;
-                        }
-                    }
-                    else if (null == filename && Binary.AsciiEqual (chunk_buf, "FTAG"))
-                    {
-                        if (chunk_size > filename_buf.Length)
-                            filename_buf = new byte[chunk_size];
-                        if (chunk_size != file.View.Read (chunk_offset+10, filename_buf, 0, (uint)chunk_size))
-                            return null;
-                        Decrypt (chunk_offset+10, data_key, filename_buf, 0, chunk_size-2);
-                        filename = Encodings.cp932.GetString (filename_buf, 0, chunk_size-2);
-                    }
-                    chunk_offset += 10 + (uint)chunk_size;
-                }
-                Entry entry;
-                if (!string.IsNullOrEmpty (filename))
-                {
-                    filename = DriveRe.Replace (filename, "");
-                    entry = FormatCatalog.Instance.Create<Entry> (filename);
-                }
-                else
-                {
-                    entry = new Entry {
-                        Name = string.Format ("{0}#{1:D4}", base_filename, i),
-                        Type = type ?? ""
-                    };
-                }
-                entry.Offset = entry_offset;
-                entry.Size = entry_size;
-                dir.Add (entry);
-            }
-            return new WagArchive (file, this, dir, data_key);
         }
 
-        static readonly Regex DriveRe = new Regex (@"^(?:.+:)?\\+");
-
         public override Stream OpenEntry (ArcFile arc, Entry entry)
         {
             var warc = arc as WagArchive;
             if (null == warc)
                 return arc.File.CreateStream (entry.Offset, entry.Size);
-            var data = new byte[entry.Size];
+            var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
-            arc.File.View.Read (entry.Offset, data, 0, entry.Size);
             Decrypt ((uint)entry.Offset, warc.Key, data);
             return new MemoryStream (data);
         }
 
-        private byte[] GenerateKey (byte[] keyword)
+        static private byte[] GenerateKey (byte[] keyword)
         {
             return GenerateKey (keyword, keyword.Length);
         }
 
-        private byte[] GenerateKey (byte[] keyword, int length)
+        static private byte[] GenerateKey (byte[] keyword, int length)
         {
             int hash = 0;
             for (int i = 0; i < length; ++i)
@@ -225,16 +116,175 @@ namespace GameRes.Formats.Xuse
             return key;
         }
 
-        private void Decrypt (uint offset, byte[] key, byte[] index)
+        static private void Decrypt (uint offset, byte[] key, byte[] index)
         {
             Decrypt (offset, key, index, 0, index.Length);
         }
 
-        private void Decrypt (uint offset, byte[] key, byte[] index, int pos, int length)
+        static private void Decrypt (uint offset, byte[] key, byte[] index, int pos, int length)
         {
             uint key_last = (uint)key.Length-1;
             for (uint i = 0; i < length; ++i)
                 index[pos+i] ^= key[(offset + i) % key_last];
         }
+
+        internal class IndexReader
+        {
+            ArcView     m_file;
+            int         m_version;
+            int         m_count;
+            byte[]      m_data_key;
+
+            public byte[] DataKey { get { return m_data_key; } }
+
+            public IndexReader (ArcView file, int version, int count)
+            {
+                m_file = file;
+                m_version = version;
+                m_count = count;
+            }
+
+            byte[]      m_chunk_buf = new byte[0x40];
+
+            public List<Entry> ReadIndex ()
+            {
+                byte[] title = m_file.View.ReadBytes (6, 0x40);
+                int title_length = Array.IndexOf<byte> (title, 0);
+                if (-1 == title_length)
+                    title_length = title.Length;
+                string arc_filename = Path.GetFileName (m_file.Name);
+                if (0x200 != m_version)
+                    arc_filename = arc_filename.ToLowerInvariant();
+                string base_filename = Path.GetFileNameWithoutExtension (arc_filename);
+
+                byte[] name_key = GenerateKey (Encodings.cp932.GetBytes (arc_filename));
+
+                uint index_offset = 0x200 + (uint)name_key.Select (x => (int)x).Sum();
+                for (int i = 0; i < name_key.Length; ++i)
+                {
+                    index_offset ^= name_key[i];
+                    index_offset = Binary.RotR (index_offset, 1);
+                }
+                for (int i = 0; i < name_key.Length; ++i)
+                {
+                    index_offset ^= name_key[i];
+                    index_offset = Binary.RotR (index_offset, 1);
+                }
+                index_offset %= 0x401;
+
+                index_offset += 0x4A;
+                byte[] index = m_file.View.ReadBytes (index_offset, (uint)(4*m_count));
+                if (index.Length != 4*m_count)
+                    return null;
+
+                byte[] index_key = new byte[index.Length];
+                for (int i = 0; i < index_key.Length; ++i)
+                {
+                    int v = name_key[(i+1) % name_key.Length] ^ (name_key[i % name_key.Length] + i);
+                    index_key[i] = (byte)(m_count + v);
+                }
+                Decrypt (index_offset, index_key, index);
+                m_data_key = GenerateKey (title, title_length);
+                var dir = new List<Entry> (m_count);
+                int current_offset = 0;
+                uint next_offset = LittleEndian.ToUInt32 (index, current_offset);
+                for (int i = 0; i < m_count; ++i)
+                {
+                    current_offset += 4;
+                    uint entry_offset = next_offset;
+                    if (entry_offset >= m_file.MaxOffset)
+                        return null;
+                    if (i + 1 == m_count)
+                        next_offset = (uint)m_file.MaxOffset;
+                    else
+                        next_offset = LittleEndian.ToUInt32 (index, current_offset);
+                    uint entry_size = next_offset - entry_offset;
+                    var entry = ParseEntry (entry_offset, entry_size);
+                    if (string.IsNullOrEmpty (entry.Name))
+                        entry.Name = string.Format ("{0}#{1:D4}", base_filename, i);
+                    dir.Add (entry);
+                }
+                return dir;
+            }
+
+            Entry ParseEntry (uint entry_offset, uint entry_size)
+            {
+                ReadChunk (entry_offset, 8);
+                if (0x200 == m_version)
+                    return ParseEntryV2 (entry_offset, entry_size);
+                else
+                    return ParseEntryV3 (entry_offset, entry_size);
+            }
+
+            void ReadChunk (uint offset, int chunk_size)
+            {
+                if (chunk_size > m_chunk_buf.Length)
+                    m_chunk_buf = new byte[chunk_size];
+                if (chunk_size != m_file.View.Read (offset, m_chunk_buf, 0, (uint)chunk_size))
+                    throw new InvalidFormatException();
+                Decrypt (offset, m_data_key, m_chunk_buf, 0, chunk_size);
+            }
+
+            Entry ParseEntryV2 (uint entry_offset, uint entry_size)
+            {
+                var data_size = LittleEndian.ToUInt32 (m_chunk_buf, 0);
+                if (data_size >= entry_size)
+                    throw new InvalidFormatException();
+                var name_length = LittleEndian.ToInt32 (m_chunk_buf, 4);
+                entry_offset += 0x10;
+                var entry = new Entry();
+                if (name_length > 0)
+                {
+                    ReadChunk (entry_offset+data_size, name_length);
+                    if ('|' == m_chunk_buf[name_length-1])
+                        --name_length;
+                    entry.Name = Encodings.cp932.GetString (m_chunk_buf, 0, name_length);
+                    entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name);
+                }
+                entry.Offset = entry_offset;
+                entry.Size = data_size;
+                return entry;
+            }
+
+            Entry ParseEntryV3 (uint entry_offset, uint entry_size)
+            {
+                if (!Binary.AsciiEqual (m_chunk_buf, "DSET"))
+                    throw new InvalidFormatException();
+
+                uint chunk_offset = entry_offset + 10;
+                int chunk_count = LittleEndian.ToInt32 (m_chunk_buf, 4);
+                var entry = new Entry();
+                string filename = null;
+                for (int chunk = 0; chunk < chunk_count; ++chunk)
+                {
+                    ReadChunk (chunk_offset, 8);
+                    int chunk_size = LittleEndian.ToInt32 (m_chunk_buf, 4);
+                    if (chunk_size <= 0)
+                        throw new InvalidFormatException();
+                    if (Binary.AsciiEqual (m_chunk_buf, "PICT"))
+                    {
+                        if (string.IsNullOrEmpty (entry.Type))
+                        {
+                            entry.Type = "image";
+                            entry_offset = chunk_offset + 0x10;
+                            entry_size = (uint)chunk_size - 6;
+                        }
+                    }
+                    else if (null == filename && Binary.AsciiEqual (m_chunk_buf, "FTAG"))
+                    {
+                        ReadChunk (chunk_offset+10, chunk_size-2);
+                        filename = Encodings.cp932.GetString (m_chunk_buf, 0, chunk_size-2);
+                    }
+                    chunk_offset += 10 + (uint)chunk_size;
+                }
+                if (!string.IsNullOrEmpty (filename))
+                    entry.Name = DriveRe.Replace (filename, "");
+                entry.Offset = entry_offset;
+                entry.Size = entry_size;
+                return entry;
+            }
+
+            static readonly Regex DriveRe = new Regex (@"^(?:.+:)?\\+");
+        }
     }
 }

ArcFormats/Xuse/ArcXARC.cs

@@ -0,0 +1,92 @@
+//! \file       ArcXARC.cs
+//! \date       Fri Feb 12 20:00:44 2016
+//! \brief      Xuse XARC resource archive.
+//
+// Copyright (C) 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Linq;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Xuse
+{
+    [Export(typeof(ArchiveFormat))]
+    public class XarcOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "XARC/XUSE"; } }
+        public override string Description { get { return "Xuse resource archive"; } }
+        public override uint     Signature { get { return 0x43524158; } } // 'XARC'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public XarcOpener ()
+        {
+            Extensions = new string[] { "arc" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (4);
+            if (!IsSaneCount (count))
+                return null;
+
+            uint index_offset = 8;
+            uint first_offset = file.View.ReadUInt32 (index_offset);
+            if ((uint)count*4 + 10 != first_offset)
+                return null;
+            var base_name = Path.GetFileNameWithoutExtension (file.Name);
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var entry = new Entry { Offset = file.View.ReadUInt32 (index_offset) };
+                dir.Add (entry);
+                index_offset += 4;
+            }
+            foreach (var entry in dir)
+            {
+                if (!file.View.AsciiEqual (entry.Offset, "DATA"))
+                    return null;
+                uint name_length = file.View.ReadUInt16 (entry.Offset+0x18);
+                entry.Size = file.View.ReadUInt32 (entry.Offset+0x1C);
+                var name = file.View.ReadBytes (entry.Offset+0x20, name_length);
+                entry.Name = DecryptName (name);
+                entry.Offset += 0x22 + name_length;
+                uint signature = file.View.ReadUInt32 (entry.Offset);
+                var res = AutoEntry.DetectFileType (signature);
+                if (res != null)
+                    entry.Type = res.Type;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        string DecryptName (byte[] name)
+        {
+            for (int i = 0; i < name.Length; ++i)
+            {
+                name[i] = Binary.RotByteL (name[i], 4);
+            }
+            return Encodings.cp932.GetString (name);
+        }
+    }
+}

supported.html

@@ -264,6 +264,7 @@ Taijoku no Ori<br/>
 Aiyoku no Apron<br/>
 Para-Sol<br/>
 Shouhei-kun no Hani-Kami Life☆<br/>
+Touka Gettan<br/>
 </td></tr>
 <tr class="odd"><td>*</td><td><tt>\x00\x00\x04\x00</tt></td><td>No</td></tr>
 <tr><td>*.war</td><td><tt>WARC 1.7</tt><br/><tt>WARC 1.5</tt><br/><tt>WARC 1.3</tt></td><td>No</td><td rowspan="5">Shiina Rio</td><td rowspan="5">
@@ -358,6 +359,7 @@ Alea Akaki Tsuki o Haruka ni Nozomi<br/>
 Iroha ~Aki no Yuuhi ni Kagefumi o~<br/>
 Konneko<br/>
 Natsu no Ame<br/>
+Nerawareta Megami Tenshi Angeltia<br/>
 Sakura Musubi<br/>
 Santaful☆Summer<br/>
 Space☆Trouble<br/>
@@ -371,7 +373,6 @@ Dungeon Crusaderz 2 ~Eigou no Rakudo~<br/>
 Onna Kyoushi<br/>
 Magical Witch Academy<br/>
 Medorei ~Okasareta Houkago~<br/>
-Nerawareta Megami Tenshi Angeltia<br/>
 Saishuu Chikan Densha<br/>
 Serina<br/>
 Ura Nyuugaku ~Ineki ni Nureta Kyoukasho~<br/>
@@ -391,6 +392,7 @@ Ryoujoku Gojuusou<br/>
 <tr class="odd"><td>*.eog</td><td><tt>CRM</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.zbm<br/>*.cwl</td><td><tt>SZDD</tt></td><td>No</td></tr>
 <tr><td>*.pack</td><td><tt>FilePackVer1.0</tt><br/><tt>FilePackVer2.0</tt><br/><tt>FilePackVer3.0</tt></td><td>No</td><td rowspan="3">QLIE</td><td rowspan="3">
+Bishoujo Mangekyou -Kami ga Tsukuritamouta Shoujo-tachi-<br/>
 Makai Tenshi Djibril -episode 3-<br/>
 Mehime no Toriko<br/>
 Nanatsu no Fushigi no Owaru Toki<br/>
@@ -448,6 +450,7 @@ Yuukyou Gangu 2<br/>
 <tr class="odd"><td>*.wpn</td><td><tt>WBD\x1AWAV</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.wwa</td><td><tt>WPX\x1AWAV</tt></td><td>No</td></tr>
 <tr><td>*.mrg</td><td><tt>MRG</tt></td><td>No</td><td rowspan="3">F&amp;C</td><td rowspan="3">
+Asa no Konai Yoru ni Dakarete -Eternal Night-<br/>
 Guren ni Somaru Gin no Rozario<br/>
 Konata yori Kanata made<br/>
 </td></tr>
@@ -487,7 +490,8 @@ Answer Dead<br/>
 Kango Sentai Nurse Ranger<br/>
 </td></tr>
 <tr class="odd"><td>*.abm</td><td><tt>BM</tt></td><td>No</td></tr>
-<tr><td>*.arc<br/>*.xarc<br/>*.bin</td><td><tt>MIKO</tt><br/><tt>KOTORI</tt></td><td>No</td><td rowspan="2">Xuse<br/>ETERNAL</td><td rowspan="2">
+<tr><td>*.arc<br/>*.xarc<br/>*.bin<br/>*.004</td><td><tt>MIKO</tt><br/><tt>KOTORI</tt><br/><tt>XARC</tt></td><td>No</td><td rowspan="2">Xuse<br/>ETERNAL</td><td rowspan="2">
+Barbaroi<br/>
 Kikouyoku Senki Gin no Toki no Corona<br/>
 Kikouyoku Senki Tenkuu no Yumina<br/>
 Nega0<br/>