Beispiel #1
0
 // TAHファイルをstreamに書き込む.成功ならtrue,失敗ならfalseを返す.
 public bool Write(Stream tostream)
 {
     try
     {
         int index = 0;
         // ファイル先頭に移動する.
         tostream.Seek(0, SeekOrigin.Begin);
         using (BufferedStream stream = new BufferedStream(tostream))
             using (BinaryWriter binarywriter = new BinaryWriter(stream))
             {
                 // ヘッダー情報を構築する.
                 BuildHeader();
                 // ヘッダーを書き込む.
                 header.Write(binarywriter);
                 long entryposition = stream.Position;
                 // offset値は0のままでエントリを一度書き込む.
                 foreach (TAHContent content in contents)
                 {
                     content.Entry.Write(binarywriter);
                 }
                 // ディレクトリを構築する
                 BuildDirectory();
                 // ディレクトリを書き込む.
                 directory.Write(binarywriter);
                 // データを書き込む
                 foreach (TAHContent content in contents)
                 {
                     // 実際にデータを読み込む.
                     Byte[] data = Data(delegateFileList[index++]);
                     // ヘッダーを更新する.
                     content.Data             = data;
                     content.Entry.Length     = data.Length;
                     content.Entry.DataOffset = (uint)stream.Position;
                     UInt32 length = (UInt32)content.Entry.Length;
                     binarywriter.Write(length);
                     Byte[] cryptdata = TAHUtil.Encrypt(content.Data);
                     binarywriter.Write(cryptdata);
                     // 参照を解除する.
                     content.Data = null;
                     data         = null;
                 }
                 // エントリを書き直す.
                 stream.Seek(entryposition, SeekOrigin.Begin);
                 foreach (TAHContent content in contents)
                 {
                     content.Entry.Write(binarywriter);
                 }
                 // バッファをフラッシュして完了.
                 binarywriter.Flush();
                 binarywriter.Close();
                 //stream.Flush();
             }
     }
     catch (Exception ex)
     {
         Debug.WriteLine(ex.Message);
         return(false);
     }
     return(true);
 }
Beispiel #2
0
        public static void ReadExternalFileList()
        {
            external_files = new ext_file_list();

            if (System.IO.File.Exists("names.txt"))
            {
                System.IO.StreamReader reader      = new System.IO.StreamReader(System.IO.File.OpenRead("names.txt"));
                List <string>          known_files = new List <string>();
                string line;
                while ((line = reader.ReadLine()) != null)
                {
                    known_files.Add(line);
                }
                //map a list of hash keys to the file...
                external_files.files = known_files.ToArray();
                if (external_files.files != null)
                {
                    external_files.hashkeys = new UInt32[external_files.files.Length];
                    for (int i = 0; i < external_files.files.Length; i++)
                    {
                        external_files.hashkeys[i] = TAHUtil.CalcHash(external_files.files[i]);
                        //Console.WriteLine(external_files.hashkeys[i].ToString("X8") + "\t" + external_files.files[i]);
                    }
                }
                //sorting for faster look up...
                Array.Sort(external_files.hashkeys, external_files.files);
            }
        }
Beispiel #3
0
        private static TAHEntryInfo GetEntry(string filename)
        {
            uint hash = 0;

            // ファイル名からハッシュ値を求める.
            if (Path.GetDirectoryName(filename) == "")
            {
                // dddddddd_xxxxxxxx.eee形式をハッシュ値に戻す
                if (filename.Length >= 17)
                {
                    string hashcode = filename.Substring(9, 8);
                    try
                    {
                        // 16進数からハッシュ値に.
                        hash = UInt32.Parse(hashcode, System.Globalization.NumberStyles.HexNumber);
                    }
                    catch (Exception)
                    {
                        // 判んない時は適当につける.
                        hash = TAHUtil.CalcHash(filename);
                    }
                }
                else
                {
                    hash = TAHUtil.CalcHash(filename);
                }
            }
            else
            {
                hash = TAHUtil.CalcHash(filename);
            }
            return(hashentry[hash]);
        }
Beispiel #4
0
        public static byte[] ReadEntryData(BinaryReader br, TAHEntry e)
        {
            br.BaseStream.Seek(e.DataOffset, SeekOrigin.Begin);
            byte[] output = new byte[br.ReadInt32()];
            byte[] input  = br.ReadBytes(e.Length - 4);

            TAHUtil.Decrypt(input, output);

            return(output);
        }
Beispiel #5
0
        private static void CreateTahFiles(string tahname, uint version)
        {
            string basefilename = Path.GetFileNameWithoutExtension(tahname);

            int count = 0;

            foreach (List <string> tahfilelist in tahfilelists)
            {
                if (tahfilelist.Count > 0)
                {
                    string destname;
                    if (count == 0)
                    {
                        destname = tahname;
                    }
                    else
                    {
                        tahname = Path.Combine(Path.GetDirectoryName(tahname), basefilename + "-" + count.ToString() + ".tah");
                    }
                    count++;
                    TAHWriter writer = new TAHWriter();
                    writer.Version = version;
                    foreach (string file in tahfilelist)
                    {
                        writer.Add(file);
                    }
                    Console.WriteLine("tah file " + tahname);
                    using (FileStream fs = File.OpenWrite(tahname))
                    {
                        int filecount = 1, filemax = tahfilelist.Count;
                        // データ取得delegate
                        writer.RawData += delegate(string filename)
                        {
                            TAHRawData   rawdata  = new TAHRawData();
                            TAHEntryInfo fileinfo = GetEntry(filename);
                            TAHFile      tahfile  = fileinfo.file;
                            uint         length;
                            rawdata.data   = TAHUtil.ReadRawEntryData(tahfile.Reader, fileinfo.entry, out length);
                            rawdata.length = length;
                            //Console.Write(tahname + " " + filecount++.ToString() + "/" + filemax.ToString() + "\r");
                            return(rawdata);
                        };
                        writer.RawWrite(fs);
                        Console.Write("\n");
                    }
                }
            }
        }
Beispiel #6
0
        // TAHにファイルを加える.
        public void Add(string filename)
        {
            // オリジナルのファイル名を保存しておく.
            delegateFileList.Add(filename);
            // TAHに格納可能なファイル名に変換する.
            string   regularfile = filename.Replace('\\', '/');
            TAHEntry tahentry    = new TAHEntry();

            tahentry.DataOffset = 0;
            tahentry.FileName   = regularfile;
            tahentry.Length     = 0;
            if (Path.GetDirectoryName(regularfile) == "")
            {
                // dddddddd_xxxxxxxx.eee形式をハッシュ値に戻す
                if (regularfile.Length >= 17)
                {
                    string hashcode = regularfile.Substring(9, 8);
                    try
                    {
                        // 16進数からハッシュ値に.
                        tahentry.Hash = UInt32.Parse(hashcode, System.Globalization.NumberStyles.HexNumber);
                        // 暫定ファイル名は削除.
                        tahentry.FileName = null;
                    }
                    catch (Exception)
                    {
                        // 判んない時は適当につける.
                        tahentry.Hash = TAHUtil.CalcHash(regularfile);
                    }
                }
                else
                {
                    // 判んない時は適当につける.
                    tahentry.Hash = TAHUtil.CalcHash(regularfile);
                }
            }
            else
            {
                tahentry.Hash = TAHUtil.CalcHash(regularfile);
            }
            TAHContent content = new TAHContent(tahentry, null);

            contents.Add(content);
        }
Beispiel #7
0
        public void Write(BinaryWriter bw)
        {
            MemoryStream ms  = new MemoryStream();
            BinaryWriter bw2 = new BinaryWriter(ms);

            foreach (string i in Files)
            {
                if (i.EndsWith("/"))
                {
                    TAHUtil.WriteString(bw2, i);
                }
                else
                {
                    TAHUtil.WriteString(bw2, Path.GetFileName(i));
                }
            }

            bw2.Flush();
            byte[] encrypted = TAHUtil.Encrypt(ms.ToArray());

            bw.Write((uint)ms.Length);
            bw.Write(encrypted);
        }
Beispiel #8
0
 public TAHContent LoadContent(BinaryReader br, TAHEntry e)
 {
     return(new TAHContent(e, TAHUtil.ReadEntryData(br, e)));
 }
Beispiel #9
0
        public void Read(BinaryReader br, TAHFile file)
        {
            // ディレクトリデータの読み込み
            Files = new List <string>(file.Header.NumEntries);
            int output_length = br.ReadInt32();
            int input_length  = (int)(file.EntrySet[0].DataOffset - br.BaseStream.Position); //- 16 - 8 * file.Header.NumEntries;

            byte[] input  = br.ReadBytes(input_length);
            byte[] output = new byte[output_length];

            if (output.Length == 0)
            {
                return;
            }

            // add konoa:tahdecryptorのバグ回避.
            if (input.Length == 0)
            {
                return;
            }

            TAHUtil.Decrypt(input, output);
            //TAHdecrypt.Decrypter.decrypt(ref input, (uint)input.Length, ref output, (uint)output.Length);

            MemoryStream ms  = new MemoryStream(output);
            BinaryReader br2 = new BinaryReader(ms);

            try
            {
                string dir = "";

                while (ms.Position < ms.Length)
                {
                    string name = TAHUtil.ReadString(br2);

                    if (name.Length == 0)
                    {
                    }
                    else
                    if (name.EndsWith("/"))
                    {
                        dir = name;
                        //DbgPrint("Directory:            " + dir);
                    }
                    else
                    {
                        name = dir + name;
                        uint     hash = TAHUtil.CalcHash(name);
                        TAHEntry ent;

                        //DbgPrint(hash.ToString("X").PadLeft(8, '0'));

                        if (file.EntrySet.TryGetValue(hash, out ent))
                        {
                            ent.FileName = name;
                            //DbgPrint(": Found:     " + file);
                        }
                        else
                        {
                            //DbgPrint(": Not Found: " + file);
                            System.Diagnostics.Debug.Assert(false);
                        }

                        //EntryMap[hash].FileName = FileName;
                    }

                    Files.Add(name);
                }
            }
            catch (EndOfStreamException)
            {
            }
        }