Removed obsolete KOGStudios KOM data format (in separate plugin now, candidate for CustomDataFormat implementation)
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970dfac4d1
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2413e5826e
@ -1,301 +0,0 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using UniversalEditor.Accessors.Stream;
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using UniversalEditor.DataFormats.Markup.XML;
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using UniversalEditor.ObjectModels.FileSystem;
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using UniversalEditor.ObjectModels.Markup;
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namespace UniversalEditor.DataFormats.FileSystem.KOGStudios
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{
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public class KOMDataFormat : DataFormat
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{
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private struct KOMFileEntry
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{
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public string FileName;
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public int CompressedSize;
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public int DecompressedSize;
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public int Checksum;
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public long Timestamp1;
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public int Algorithm;
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}
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private Version mvarVersion = new Version(0, 4);
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public Version Version { get { return mvarVersion; } set { mvarVersion = value; } }
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private int mvarInitialKey = 0xB290207;
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public int InitialKey { get { return mvarInitialKey; } set { mvarInitialKey = value; } }
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private string mvarPassword = "1846201835";
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public string Password { get { return mvarPassword; } set { mvarPassword = value; } }
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private string mvarFlavor = "GC TEAM MASSFILE";
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public string Flavor { get { return mvarFlavor; } set { mvarFlavor = value; } }
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private static DataFormatReference _dfr = null;
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public override DataFormatReference MakeReference()
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{
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if (_dfr == null)
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{
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_dfr = base.MakeReference();
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_dfr.Capabilities.Add(typeof(FileSystemObjectModel), DataFormatCapabilities.All);
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_dfr.Filters.Add("KOG Studios archive", new byte?[][] { new byte?[] { (byte)'K', (byte)'O', (byte)'G', (byte)' ' } }, new string[] { "*.kom" });
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// _dfr.ImportOptions.Add(new ExportOptionNumber("InitialKey", "Initial key: ", 0xB290207));
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_dfr.ImportOptions.Add(new ExportOptionText("Password", "Password: ", "1846201835"));
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_dfr.ExportOptions.Add(new ExportOptionNumber("InitialKey", "Initial key: ", 0xB290207));
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_dfr.ExportOptions.Add(new ExportOptionText("Password", "Password: ", "1846201835"));
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_dfr.ExportOptions.Add(new ExportOptionText("Flavor", "Flavor: ", "GC TEAM MASSFILE", 16));
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}
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return _dfr;
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}
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protected override void LoadInternal(ref ObjectModel objectModel)
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{
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FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
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if (fsom == null) return;
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IO.BinaryReader br = base.Stream.BinaryReader;
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if (br.BaseStream.Length < 20) throw new InvalidDataFormatException("File must be greater than 20 bytes in length");
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string signature = br.ReadFixedLengthString(52);
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signature = signature.TrimNull();
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if (!signature.StartsWith("KOG ")) throw new InvalidDataFormatException("File does not begin with \"KOG \"");
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mvarFlavor = signature.Substring(4, 16);
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int fileCount = br.ReadInt32();
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long base_off = 0;
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string xml = String.Empty;
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#region Version-specific
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string version = signature.Substring(21);
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switch (version)
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{
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case "V.0.1.":
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case "V.0.2.":
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{
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int dummy = br.ReadInt32();
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base_off = br.BaseStream.Position + (fileCount * 0x48);
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break;
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}
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case "V.0.3.":
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{
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int dummy = br.ReadInt32();
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string dummystr = br.ReadFixedLengthString(8);
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int xmlsz = br.ReadInt32();
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base_off = br.BaseStream.Position + xmlsz;
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xml = br.ReadFixedLengthString(xmlsz);
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break;
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}
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case "V.0.4.":
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{
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int key = br.ReadInt32();
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mvarInitialKey = key;
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string dummystr = br.ReadFixedLengthString(8);
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int xmlsz = br.ReadInt32();
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base_off = br.BaseStream.Position;
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if (key == 0xB290207)
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{
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key = 0x6E0ACDEB; // 64-bit number (%11d)
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}
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// byte[] bkey = BitConverter.GetBytes(key);
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string password = mvarPassword;
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byte[] sbkey = System.Text.Encoding.ASCII.GetBytes(password);
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// SHA-1
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System.Security.Cryptography.SHA1 sha1 = System.Security.Cryptography.SHA1.Create();
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byte[] hash = sha1.ComputeHash(sbkey);
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//BF-ECB
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UniversalEditor.Cryptography.BlowFish bf_ecb = new Cryptography.BlowFish(hash);
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br.BaseStream.Position = base_off;
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byte[] data = br.ReadBytes(xmlsz);
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try
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{
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data = bf_ecb.Decrypt_ECB(data);
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}
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catch (Exception ex)
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{
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}
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xml = System.Text.Encoding.UTF8.GetString(data);
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break;
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}
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}
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#endregion
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#region File index table loading
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MarkupObjectModel mom = new MarkupObjectModel();
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ObjectModel om = mom;
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XMLDataFormat xdf = new XMLDataFormat();
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UniversalEditor.Accessors.Text.TextAccessor accessor = new Accessors.Text.TextAccessor(om, xdf);
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try
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{
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accessor.Open(xml);
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accessor.Load();
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accessor.Close();
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}
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catch (InvalidDataFormatException ex)
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{
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accessor.Close();
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throw new DataFormatOptionArgumentException("The password is invalid or the file is corrupted. Please check that you provided the correct password and try again.");
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}
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MarkupTagElement tagFiles = (mom.Elements["Files"] as MarkupTagElement);
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if (tagFiles == null)
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throw new DataFormatOptionArgumentException("The password is invalid or the file is corrupted. Please check that you provided the correct password and try again."); //throw new InvalidDataFormatException();
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List<KOMFileEntry> entries = new List<KOMFileEntry>();
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foreach (MarkupElement el in tagFiles.Elements)
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{
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MarkupTagElement tag = (el as MarkupTagElement);
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if (tag == null) continue;
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if (tag.FullName != "File") continue;
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KOMFileEntry entry = new KOMFileEntry();
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entry.FileName = tag.Attributes["Name"].Value;
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entry.CompressedSize = Int32.Parse(tag.Attributes["CompressedSize"].Value);
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entry.DecompressedSize = Int32.Parse(tag.Attributes["Size"].Value);
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entry.Checksum = Int32.Parse(tag.Attributes["Checksum"].Value, System.Globalization.NumberStyles.HexNumber);
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entry.Timestamp1 = Int64.Parse(tag.Attributes["FileTime"].Value, System.Globalization.NumberStyles.HexNumber);
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// DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0);
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// DateTime Timestamp = DateTime.FromFileTimeUtc(timestamp1); // UnixEpoch.AddSeconds(timestamp1);
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entry.Algorithm = Int32.Parse(tag.Attributes["Algorithm"].Value);
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entries.Add(entry);
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}
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long offset = br.BaseStream.Position;
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foreach (KOMFileEntry entry in entries)
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{
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File file = new File();
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file.Name = entry.FileName;
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file.Size = entry.DecompressedSize;
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file.DataRequest += file_DataRequest;
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file.Properties.Add("reader", br);
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file.Properties.Add("offset", offset);
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file.Properties.Add("length", entry.CompressedSize);
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br.BaseStream.Seek(entry.CompressedSize, System.IO.SeekOrigin.Current);
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offset += entry.CompressedSize;
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fsom.Files.Add(file);
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}
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#endregion
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}
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private void file_DataRequest(object sender, DataRequestEventArgs e)
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{
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File file = (sender as File);
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IO.BinaryReader br = (IO.BinaryReader)file.Properties["reader"];
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long offset = (long)file.Properties["offset"];
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int length = (int)file.Properties["length"];
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br.BaseStream.Seek(offset, System.IO.SeekOrigin.Begin);
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byte[] data = br.ReadBytes(length);
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data = UniversalEditor.Compression.CompressionStream.Decompress(Compression.CompressionMethod.Zlib, data);
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e.Data = data;
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}
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protected override void SaveInternal(ObjectModel objectModel)
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{
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FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
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IO.BinaryWriter bw = base.Stream.BinaryWriter;
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bw.WriteFixedLengthString("KOG " + mvarFlavor + " V." + mvarVersion.ToString(2) + ".", 52);
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bw.Write(fsom.Files.Count);
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switch (mvarVersion.Major)
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{
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case 0:
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{
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switch (mvarVersion.Minor)
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{
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case 4:
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{
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bw.Write(mvarInitialKey);
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bw.WriteFixedLengthString(String.Empty, 8);
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#region XML file
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byte[] bkey = BitConverter.GetBytes(mvarInitialKey);
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string password = mvarPassword;
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byte[] sbkey = System.Text.Encoding.ASCII.GetBytes(password);
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// SHA-1
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System.Security.Cryptography.SHA1 sha1 = System.Security.Cryptography.SHA1.Create();
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byte[] hash = sha1.ComputeHash(sbkey);
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System.IO.MemoryStream msXML = new System.IO.MemoryStream();
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XMLDataFormat xdf = new XMLDataFormat();
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MarkupObjectModel mom = new MarkupObjectModel();
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List<byte[]> datas = new List<byte[]>();
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MarkupTagElement tagFiles = new MarkupTagElement();
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tagFiles.FullName = "Files";
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foreach (File file in fsom.Files)
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{
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MarkupTagElement tag = new MarkupTagElement();
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tag.FullName = "File";
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tag.Attributes.Add("Name", file.Name);
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byte[] decompressedData = file.GetDataAsByteArray();
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byte[] compressedData = UniversalEditor.Compression.CompressionStream.Compress(Compression.CompressionMethod.Zlib, decompressedData);
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datas.Add(compressedData);
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int checksum = 0;
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long timestamp = 0;
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int algorithm = 0;
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tag.Attributes.Add("CompressedSize", compressedData.Length.ToString());
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tag.Attributes.Add("Size", decompressedData.Length.ToString());
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tag.Attributes.Add("Checksum", checksum.ToString());
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tag.Attributes.Add("FileTime", timestamp.ToString());
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tag.Attributes.Add("Algorithm", algorithm.ToString());
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tagFiles.Elements.Add(tag);
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}
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mom.Elements.Add(tagFiles);
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StreamAccessor.Save(msXML, mom, xdf, true);
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#endregion
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//BF-ECB
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UniversalEditor.Cryptography.BlowFish bf_ecb = new Cryptography.BlowFish(hash);
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byte[] xmldata = msXML.ToArray();
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xmldata = bf_ecb.Encrypt_ECB(xmldata);
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bw.Write(xmldata.Length);
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bw.Write(xmldata);
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foreach (byte[] data in datas)
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{
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bw.Write(data);
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}
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break;
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}
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}
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break;
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}
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}
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bw.Write(fsom.Files.Count);
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}
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}
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}
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