mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-27 07:34:00 +08:00
(Cocktail.PakOpener): merged with FC01.PakOpener.
This commit is contained in:
morkt
parent
1451963e32
commit
03eec71d9d
@ -27,6 +27,7 @@ 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 System.Security.Cryptography;
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using GameRes.Compression;
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using GameRes.Cryptography;
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@ -39,7 +40,7 @@ namespace GameRes.Formats.FC01
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internal class AgsiEntry : PackedEntry
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{
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public int Method;
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public bool IsEncrypted;
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public bool IsEncrypted { get { return Method >= 3 && (Method <= 5 || Method == 7); } }
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public bool IsSpecial;
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}
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@ -54,6 +55,12 @@ namespace GameRes.Formats.FC01
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}
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}
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[Serializable]
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public class AgsiScheme : ResourceScheme
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{
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public IDictionary<string, IDictionary<string, byte[]>> KnownSchemes;
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};
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[Export(typeof(ArchiveFormat))]
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public class PakOpener : ArchiveFormat
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{
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@ -63,65 +70,62 @@ namespace GameRes.Formats.FC01
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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static readonly Dictionary<string, byte[]> KnownKeys = new Dictionary<string,byte[]> {
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{ "01.pak", new byte[] { 0x4A, 0xC9, 0x75, 0x62, 0x39, 0xC1, 0xBE, 0x54 } },
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{ "02.pak", new byte[] { 0xC9, 0x46, 0x32, 0x69, 0x7B, 0xD2, 0x58, 0x54 } },
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{ "03.pak", new byte[] { 0x33, 0x34, 0x37, 0x38, 0x73, 0x68, 0x61, 0x6F } }, // "3478shao"
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{ "04.pak", new byte[] { 0x73, 0x69, 0x6F, 0x62, 0x6E, 0x72, 0x61, 0x68 } }, // "siobnrah"
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{ "05.pak", new byte[] { 0xB5, 0x37, 0x70, 0x38, 0x3D, 0x62, 0x48, 0xD1 } },
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{ "06.pak", new byte[] { 0x4F, 0x7D, 0x40, 0x24, 0x57, 0xCD, 0x68, 0x6E } },
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};
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public PakOpener ()
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{
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Signatures = new uint[] { 0x4B434150, 0x24A02028, 0 }; // 'PACK'
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}
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public override ArcFile TryOpen (ArcView file)
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{
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var header = file.View.ReadBytes (0, 12);
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byte k1 = file.View.ReadByte (file.MaxOffset-9);
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byte k2 = file.View.ReadByte (file.MaxOffset-6);
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DecryptHeader (header, k1, k2);
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if (!header.AsciiEqual ("PACK"))
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var reader = IndexReader.Create (file);
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if (null == reader)
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return null;
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int count = header.ToInt32 (4);
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int entry_size = header.ToInt32 (8);
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if (!IsSaneCount (count) || entry_size <= 0x10)
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var dir = reader.ReadIndex();
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if (null == dir)
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return null;
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int index_size = count * entry_size;
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var index = file.View.ReadBytes (12, (uint)index_size);
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Decrypt (index, 0, index_size, 7524u);
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long data_offset = 12 + index_size;
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int index_offset = 0;
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int name_length = entry_size - 0x10;
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var dir = new List<Entry> (count);
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for (int i = 0; i < count; ++i)
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if (dir.Cast<AgsiEntry>().Any (e => e.IsEncrypted))
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{
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var name = Binary.GetCString (index, index_offset+0x10, name_length);
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var entry = FormatCatalog.Instance.Create<AgsiEntry> (name);
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entry.UnpackedSize = index.ToUInt32 (index_offset);
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entry.Size = index.ToUInt32 (index_offset+4);
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entry.Method = index.ToInt32 (index_offset+8);
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entry.Offset = index.ToUInt32 (index_offset+0xC) + data_offset;
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if (!entry.CheckPlacement (file.MaxOffset))
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var scheme = QueryScheme (file);
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if (null == scheme)
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return null;
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entry.IsPacked = entry.Method != 0;
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entry.IsEncrypted = entry.Method >= 3 && (entry.Method <= 5 || entry.Method == 7);
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entry.IsSpecial = name.Equals ("Copyright.Dat", StringComparison.OrdinalIgnoreCase);
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dir.Add (entry);
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index_offset += entry_size;
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}
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var arc_name = Path.GetFileName (file.Name).ToLowerInvariant();
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byte[] key;
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if (!KnownKeys.TryGetValue (arc_name, out key) || key == null)
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return new ArcFile (file, this, dir);
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if (scheme.TryGetValue (arc_name, out key) && key != null)
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return new AgsiArchive (file, this, dir, key);
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}
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return new ArcFile (file, this, dir);
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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 aent = entry as AgsiEntry;
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if (null == aent || 0 == aent.Method)
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return base.OpenEntry (arc, entry);
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var aent = (AgsiEntry)entry;
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var aarc = arc as AgsiArchive;
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Stream input;
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if (aent.IsEncrypted && aarc != null && aarc.Key != null)
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input = OpenEncryptedEntry (aarc, aent);
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else
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input = arc.File.CreateStream (entry.Offset, entry.Size);
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switch (aent.Method)
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{
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case 0: // no compression
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case 3:
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break;
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case 1: // RLE compression
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case 4:
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break;
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case 2: // LZSS bit stream
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case 5:
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input = new PackedStream<LzBitStream> (input, new LzBitStream ((int)aent.UnpackedSize));
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break;
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case 6: // LZSS compression
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case 7:
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input = new LzssStream (input);
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break;
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}
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return input;
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}
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protected Stream OpenEncryptedEntry (AgsiArchive arc, AgsiEntry entry)
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{
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uint enc_size = entry.Size;
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if (enc_size > 1024)
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@ -130,7 +134,7 @@ namespace GameRes.Formats.FC01
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}
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using (var des = DES.Create())
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{
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des.Key = aarc.Key;
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des.Key = arc.Key;
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des.Mode = CipherMode.ECB;
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des.Padding = PaddingMode.Zeros;
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using (var enc = arc.File.CreateStream (entry.Offset, enc_size))
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@ -139,35 +143,141 @@ namespace GameRes.Formats.FC01
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var output = new byte[enc_size];
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dec.Read (output, 0, output.Length);
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int header_size;
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if (!aent.IsSpecial)
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if (!entry.IsSpecial)
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{
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header_size = output.ToInt32 (output.Length-4);
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if (header_size > entry.UnpackedSize)
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throw new InvalidEncryptionScheme();
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}
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else
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header_size = (int)aent.UnpackedSize;
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if (!aent.IsSpecial && entry.Size > enc_size)
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header_size = (int)entry.UnpackedSize;
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if (!entry.IsSpecial && entry.Size > enc_size)
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{
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var header = new byte[header_size];
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Buffer.BlockCopy (output, 0, header, 0, header_size);
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input = arc.File.CreateStream (entry.Offset + enc_size, entry.Size - enc_size);
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input = new PrefixStream (header, input);
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var input = arc.File.CreateStream (entry.Offset + enc_size, entry.Size - enc_size);
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return new PrefixStream (header, input);
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}
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else
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input = new BinMemoryStream (output, 0, header_size, entry.Name);
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return new BinMemoryStream (output, 0, header_size, entry.Name);
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}
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}
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}
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else
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input = arc.File.CreateStream (entry.Offset, entry.Size);
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switch (aent.Method)
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{
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case 6:
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case 7:
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input = new LzssStream (input);
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break;
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}
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return input;
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}
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void DecryptHeader (byte[] header, byte k1, byte k2)
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protected IDictionary<string, byte[]> QueryScheme (ArcView file)
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{
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var title = FormatCatalog.Instance.LookupGame (file.Name, @"..\*.sb");
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if (string.IsNullOrEmpty (title) || !KnownSchemes.ContainsKey (title))
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return null;
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return KnownSchemes[title];
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}
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static AgsiScheme DefaultScheme = new AgsiScheme
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{
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KnownSchemes = new Dictionary<string, IDictionary<string, byte[]>>()
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};
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public IDictionary<string, IDictionary<string, byte[]>> KnownSchemes
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{
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get { return DefaultScheme.KnownSchemes; }
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}
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public override ResourceScheme Scheme
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{
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get { return DefaultScheme; }
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set { DefaultScheme = (AgsiScheme)value; }
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}
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}
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internal class IndexReader
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{
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ArcView m_file;
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int m_count;
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int m_record_size;
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uint m_data_offset;
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public bool IsEncrypted { get; set; }
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public IndexReader (ArcView file, int count, int record_size, bool is_encrypted)
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{
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m_file = file;
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m_count = count;
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m_record_size = record_size;
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m_data_offset = (uint)(0xC + m_count * m_record_size);
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IsEncrypted = is_encrypted;
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}
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public static IndexReader Create (ArcView file)
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{
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int count, record_size;
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bool is_encrypted = false;
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if (!file.View.AsciiEqual (0, "PACK"))
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{
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var header = file.View.ReadBytes (0, 12);
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byte k1 = file.View.ReadByte (file.MaxOffset-9);
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byte k2 = file.View.ReadByte (file.MaxOffset-6);
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DecryptHeader (header, k1, k2);
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if (!header.AsciiEqual ("PACK"))
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return null;
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count = header.ToInt32 (4);
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record_size = header.ToInt32 (8);
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is_encrypted = true;
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}
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else
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{
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count = file.View.ReadInt32 (4);
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record_size = file.View.ReadInt32 (8);
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}
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if (!ArchiveFormat.IsSaneCount (count) || record_size <= 0x10 || record_size > 0x100)
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return null;
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var reader = new IndexReader (file, count, record_size, is_encrypted);
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if (reader.m_data_offset >= file.MaxOffset)
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return null;
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return reader;
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}
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public List<Entry> ReadIndex ()
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{
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using (var index = OpenIndex())
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{
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int name_size = m_record_size - 0x10;
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var dir = new List<Entry> (m_count);
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for (int i = 0; i < m_count; ++i)
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{
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var entry = new AgsiEntry();
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entry.UnpackedSize = index.ReadUInt32();
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entry.Size = index.ReadUInt32();
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entry.Method = index.ReadInt32();
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entry.Offset = index.ReadUInt32() + m_data_offset;
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if (!entry.CheckPlacement (m_file.MaxOffset))
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return null;
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var name = index.ReadCString (name_size);
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if (string.IsNullOrEmpty (name))
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return null;
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entry.Name = name;
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entry.Type = FormatCatalog.Instance.GetTypeFromName (name);
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entry.IsPacked = entry.Method != 0 && entry.Method != 3;
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entry.IsSpecial = name.Equals ("Copyright.Dat", StringComparison.OrdinalIgnoreCase);
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dir.Add (entry);
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}
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return dir;
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}
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}
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IBinaryStream OpenIndex ()
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{
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int index_size = m_count * m_record_size;
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if (IsEncrypted)
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{
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var index = m_file.View.ReadBytes (12, (uint)index_size);
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DecryptIndex (index, 0, index_size, 7524u);
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return new BinMemoryStream (index);
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}
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else
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return m_file.CreateStream (12, (uint)index_size);
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}
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static void DecryptHeader (byte[] header, byte k1, byte k2)
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{
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int shift = k2 & 7;
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if (0 == shift)
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@ -179,7 +289,7 @@ namespace GameRes.Formats.FC01
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}
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}
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void Decrypt (byte[] data, int pos, int length, uint seed)
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static void DecryptIndex (byte[] data, int pos, int length, uint seed)
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{
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var rnd = new MersenneTwister (seed);
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for (int i = 0; i < length; ++i)
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@ -193,4 +303,80 @@ namespace GameRes.Formats.FC01
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}
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}
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}
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internal sealed class LzBitStream : Decompressor
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{
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MsbBitStream m_input;
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int m_unpacked_size;
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public LzBitStream ()
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{
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}
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public LzBitStream (int unpacked_size)
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{
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m_unpacked_size = unpacked_size;
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}
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public override void Initialize (Stream input)
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{
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m_input = new MsbBitStream (input, true);
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}
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protected override IEnumerator<int> Unpack ()
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{
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var frame = new byte[0x1000];
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int dst = 0;
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int frame_pos = 1;
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while (dst < m_unpacked_size)
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{
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int bit = m_input.GetNextBit();
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if (bit != 0)
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{
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if (-1 == bit)
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yield break;
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int v = m_input.GetBits (8);
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if (-1 == v)
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yield break;
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frame[frame_pos++ & 0xFFF] = m_buffer[m_pos++] = (byte)v;
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dst++;
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if (0 == --m_length)
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yield return m_pos;
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}
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else
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{
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int offset = m_input.GetBits (12);
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if (-1 == offset)
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yield break;
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int count = m_input.GetBits (4);
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if (-1 == count)
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yield break;
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count += 2;
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dst += count;
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while (count --> 0)
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{
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byte v = frame[offset++ & 0xFFF];
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frame[frame_pos++ & 0xFFF] = v;
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m_buffer[m_pos++] = v;
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if (0 == --m_length)
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yield return m_pos;
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}
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}
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}
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}
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bool m_disposed = false;
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protected override void Dispose (bool disposing)
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{
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if (!m_disposed)
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{
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if (disposing)
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{
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m_input.Dispose();
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m_disposed = true;
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}
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base.Dispose (disposing);
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}
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}
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}
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}
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@ -1,160 +0,0 @@
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//! \file ArcPAK.cs
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//! \date 2017 Dec 15
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//! \brief Cocktail Soft resource archive.
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//
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// Copyright (C) 2017 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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//
|
||||
// The above copyright notice and this permission notice shall be included in
|
||||
// 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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|
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namespace GameRes.Formats.Cocktail
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{
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internal class CompressedEntry : PackedEntry
|
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{
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public int Compression;
|
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}
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|
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[Export(typeof(ArchiveFormat))]
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public class PakOpener : ArchiveFormat
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{
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public override string Tag { get { return "PAK/COCKTAIL"; } }
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public override string Description { get { return "Cocktail Soft resource archive"; } }
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public override uint Signature { get { return 0x4B434150; } } // 'PACK'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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// static readonly uint[] KnownKeyCode = { 0x385AB4BA, 0x52CCCF4E };
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// static readonly uint[] KnownKeyCode = { 0x33C074B5, 0xB6744357 };
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static readonly uint[] KnownKeyCode = { 0xBBB64423, 0x4D765A33 };
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public override ArcFile TryOpen (ArcView file)
|
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{
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int count = file.View.ReadInt32 (4);
|
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if (!IsSaneCount (count))
|
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return null;
|
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uint record_size = file.View.ReadUInt32 (8);
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if (record_size <= 0x10 || record_size > 0x100)
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return null;
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uint index_offset = 0xC;
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uint data_offset = index_offset + (uint)count * record_size;
|
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if (data_offset >= file.MaxOffset
|
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|| data_offset > file.View.Reserve (0, data_offset))
|
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return null;
|
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|
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uint name_size = record_size - 0x10;
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var dir = new List<Entry> (count);
|
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for (int i = 0; i < count; ++i)
|
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{
|
||||
var name = file.View.ReadString (index_offset+0x10, name_size);
|
||||
if (string.IsNullOrEmpty (name))
|
||||
return null;
|
||||
var entry = FormatCatalog.Instance.Create<CompressedEntry> (name);
|
||||
entry.UnpackedSize = file.View.ReadUInt32 (index_offset);
|
||||
entry.Size = file.View.ReadUInt32 (index_offset+4);
|
||||
entry.Compression = file.View.ReadInt32 (index_offset+8);
|
||||
entry.Offset = file.View.ReadUInt32 (index_offset+0xC) + data_offset;
|
||||
if (!entry.CheckPlacement (file.MaxOffset))
|
||||
return null;
|
||||
entry.IsPacked = entry.Compression != 0;
|
||||
index_offset += record_size;
|
||||
dir.Add (entry);
|
||||
}
|
||||
return new ArcFile (file, this, dir);
|
||||
}
|
||||
|
||||
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
||||
{
|
||||
var pent = entry as CompressedEntry;
|
||||
if (null == pent || pent.Compression != 2)
|
||||
return base.OpenEntry (arc, entry);
|
||||
|
||||
using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
|
||||
using (var unpacker = new LzCompression (input, (int)pent.UnpackedSize))
|
||||
{
|
||||
var data = unpacker.Unpack();
|
||||
return new BinMemoryStream (data, entry.Name);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
internal sealed class LzCompression : IDisposable
|
||||
{
|
||||
MsbBitStream m_input;
|
||||
byte[] m_output;
|
||||
byte[] m_frame;
|
||||
|
||||
public LzCompression (IBinaryStream input, int unpacked_size)
|
||||
{
|
||||
m_input = new MsbBitStream (input.AsStream);
|
||||
m_output = new byte[unpacked_size];
|
||||
m_frame = new byte[0x1000];
|
||||
}
|
||||
|
||||
public byte[] Unpack ()
|
||||
{
|
||||
int dst = 0;
|
||||
int frame_pos = 1;
|
||||
while (dst < m_output.Length)
|
||||
{
|
||||
int bit = m_input.GetNextBit();
|
||||
if (bit != 0)
|
||||
{
|
||||
if (-1 == bit)
|
||||
break;
|
||||
int v = m_input.GetBits (8);
|
||||
if (-1 == v)
|
||||
break;
|
||||
m_frame[frame_pos++ & 0xFFF] = m_output[dst++] = (byte)v;
|
||||
}
|
||||
else
|
||||
{
|
||||
int offset = m_input.GetBits (12);
|
||||
if (-1 == offset)
|
||||
break;
|
||||
int count = m_input.GetBits (4);
|
||||
if (-1 == count)
|
||||
break;
|
||||
count += 2;
|
||||
while (count --> 0)
|
||||
{
|
||||
byte v = m_frame[offset++ & 0xFFF];
|
||||
m_output[dst++] = v;
|
||||
m_frame[frame_pos++ & 0xFFF] = v;
|
||||
}
|
||||
}
|
||||
}
|
||||
return m_output;
|
||||
}
|
||||
|
||||
bool m_disposed = false;
|
||||
public void Dispose ()
|
||||
{
|
||||
if (!m_disposed)
|
||||
{
|
||||
m_input.Dispose();
|
||||
m_disposed = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user