Exemplo n.º 1
0
        public bool Unpack(string DirName, string PackageName)
        {
            FileInfo     pakFile = new FileInfo(PackageName);
            FileStream   stmori  = pakFile.Open(FileMode.Open, FileAccess.Read);
            BinaryReader brori   = new BinaryReader(stmori);

            ScwHeader scwHdr = (ScwHeader)StructConverter.BytesToStruct(brori.ReadBytes(
                                                                            Marshal.SizeOf(typeof(ScwHeader))), typeof(ScwHeader));

            if (scwHdr.Magic != "DataPack5" || scwHdr.MajorVer != 5)
            {
                throw new FormatException("File");
            }

            stmori.Seek(scwHdr.IndexOffset, SeekOrigin.Begin);
            byte[] comprIdx   = brori.ReadBytes((int)scwHdr.IndexLen);
            byte[] uncomprIdx = new byte[scwHdr.IndexEntries * Marshal.SizeOf(typeof(ScwIndexEntry))];
            DecryptBlock(comprIdx);
            LzssUncompress(uncomprIdx, (int)scwHdr.IndexEntries * Marshal.SizeOf(typeof(ScwIndexEntry)),
                           comprIdx, (int)scwHdr.IndexLen);
            MemoryStream         stmidx  = new MemoryStream(uncomprIdx);
            BinaryReader         bridx   = new BinaryReader(stmidx);
            List <ScwIndexEntry> entries = new List <ScwIndexEntry>((int)scwHdr.IndexEntries);

            //ArrayList entries2 = new ArrayList((int)scwHdr.IndexEntries);
            for (int i = 0; i < scwHdr.IndexEntries; i++)
            {
                entries.Add((ScwIndexEntry)StructConverter.BytesToStruct(
                                bridx.ReadBytes(Marshal.SizeOf(typeof(ScwIndexEntry))), typeof(ScwIndexEntry)));
            }

            Directory.SetCurrentDirectory(DirName);
            if (Path.GetFileName(PackageName).StartsWith("Graphic", StringComparison.CurrentCultureIgnoreCase))
            {
                for (int i = 0; i < scwHdr.IndexEntries; i++)
                {
                    ScwIndexEntry entry  = entries[i];
                    FileInfo      newf   = new FileInfo(entry.Name + ".png");
                    Stream        stmnew = newf.Open(FileMode.Create, FileAccess.Write);

                    stmori.Seek(entry.Offset + scwHdr.DataOffset, SeekOrigin.Begin);
                    byte[] newbuff = brori.ReadBytes((int)entry.Length);
                    DecryptBlock2(newbuff, CalcKey(entry.Name));
                    stmnew.Write(newbuff, 0, (int)entry.Length);
                    stmnew.Close();
                }
            }
            else if (Path.GetFileName(PackageName).StartsWith("Scr", StringComparison.CurrentCultureIgnoreCase))
            {
                for (int i = 0; i < scwHdr.IndexEntries; i++)
                {
                    ScwIndexEntry entry  = entries[i];
                    FileInfo      newf   = new FileInfo(entry.Name);
                    Stream        stmnew = newf.Open(FileMode.Create, FileAccess.Write);
                    stmori.Seek(entry.Offset + scwHdr.DataOffset, SeekOrigin.Begin);
                    stmnew.Write(brori.ReadBytes((int)entry.Length), 0, (int)entry.Length);
                    stmnew.Close();
                }
            }
            else
            {
                throw new FormatException("Not supported prefix!");
            }

            stmori.Close();
            return(true);
        }
Exemplo n.º 2
0
        public bool Pack(string DirName, string PackageName, string NewPakName = null)
        {
            //if (NewPakName == null)
            //    NewPakName = PackageName.Replace(".pak", "2.pak");

            FileInfo     pakFile = new FileInfo(PackageName);
            FileStream   stmori  = pakFile.Open(FileMode.Open, FileAccess.ReadWrite);
            BinaryReader brori   = new BinaryReader(stmori);
            BinaryWriter bwori   = new BinaryWriter(stmori);

            ScwHeader scwHdr = (ScwHeader)StructConverter.BytesToStruct(brori.ReadBytes(
                                                                            Marshal.SizeOf(typeof(ScwHeader))), typeof(ScwHeader));

            if (scwHdr.Magic != "DataPack5" || scwHdr.MajorVer != 5)
            {
                throw new FormatException("File");
            }

            stmori.Seek(scwHdr.IndexOffset, SeekOrigin.Begin);
            byte[] comprIdx   = brori.ReadBytes((int)scwHdr.IndexLen);
            byte[] uncomprIdx = new byte[scwHdr.IndexEntries * Marshal.SizeOf(typeof(ScwIndexEntry))];
            DecryptBlock(comprIdx);
            LzssUncompress(uncomprIdx, (int)scwHdr.IndexEntries * Marshal.SizeOf(typeof(ScwIndexEntry)),
                           comprIdx, (int)scwHdr.IndexLen);
            MemoryStream         stmidx  = new MemoryStream(uncomprIdx);
            BinaryReader         bridx   = new BinaryReader(stmidx);
            List <ScwIndexEntry> entries = new List <ScwIndexEntry>((int)scwHdr.IndexEntries);

            //ArrayList entries2 = new ArrayList((int)scwHdr.IndexEntries);
            for (int i = 0; i < scwHdr.IndexEntries; i++)
            {
                entries.Add((ScwIndexEntry)StructConverter.BytesToStruct(
                                bridx.ReadBytes(Marshal.SizeOf(typeof(ScwIndexEntry))), typeof(ScwIndexEntry)));
            }

            Directory.SetCurrentDirectory(DirName);
            long dataend = scwHdr.IndexOffset - scwHdr.DataOffset;

            for (int i = 0; i < scwHdr.IndexEntries; i++)
            {
                ScwIndexEntry entry = entries[i];
                if (Path.GetFileName(PackageName).StartsWith("Graphic", StringComparison.CurrentCultureIgnoreCase))
                {
                    if (File.Exists(entry.Name + ".png"))
                    {
                        FileInfo newf   = new FileInfo(entry.Name + ".png");
                        byte[]   stmnew = File.ReadAllBytes(entry.Name + ".png");
                        DecryptBlock2(stmnew, CalcKey(entry.Name));
                        if (newf.Length <= entry.Length)
                        {
                            stmori.Seek(entry.Offset + scwHdr.DataOffset, SeekOrigin.Begin);
                            bwori.Write(stmnew);
                            entry.Length = (uint)newf.Length;
                        }
                        else
                        {
                            stmori.Seek(dataend + scwHdr.DataOffset, SeekOrigin.Begin);
                            bwori.Write(stmnew);
                            entry.Offset = (uint)dataend;
                            dataend     += newf.Length;
                            dataend      = dataend % 4 == 0 ? dataend : dataend + (4 - dataend % 4);
                            entry.Length = (uint)newf.Length;
                        }
                        entries[i] = entry;
                    }
                }
                else if (Path.GetFileName(PackageName).StartsWith("Scr", StringComparison.CurrentCultureIgnoreCase))
                {
                    if (File.Exists(entry.Name))
                    {
                        FileInfo newf = new FileInfo(entry.Name);
                        if (newf.Length <= entry.Length)
                        {
                            stmori.Seek(entry.Offset + scwHdr.DataOffset, SeekOrigin.Begin);
                            bwori.Write(File.ReadAllBytes(entry.Name));
                            entry.Length = (uint)newf.Length;
                        }
                        else
                        {
                            stmori.Seek(dataend + scwHdr.DataOffset, SeekOrigin.Begin);
                            bwori.Write(File.ReadAllBytes(entry.Name));
                            entry.Offset = (uint)dataend;
                            dataend     += newf.Length;
                            dataend      = dataend % 4 == 0 ? dataend : dataend + (4 - dataend % 4);
                            entry.Length = (uint)newf.Length;
                        }
                        entries[i] = entry;
                    }
                }
            }

            stmidx.Seek(0, SeekOrigin.Begin);
            for (int i = 0; i < scwHdr.IndexEntries; i++)
            {
                byte[] bentry = StructConverter.StructToBytes(entries[i]);
                stmidx.Write(bentry, 0, Marshal.SizeOf(typeof(ScwIndexEntry)));
            }
            uint newlen = 0;

            comprIdx = LzssPack(uncomprIdx, (uint)uncomprIdx.Length, ref newlen);
            DecryptBlock(comprIdx, (int)newlen);
            stmori.Seek(dataend + scwHdr.DataOffset, SeekOrigin.Begin);
            bwori.Write(comprIdx, 0, (int)newlen);
            long endpos = stmori.Position;

            scwHdr.IndexOffset = (uint)dataend + scwHdr.DataOffset;
            scwHdr.IndexLen    = (uint)newlen;
            stmori.Seek(0, SeekOrigin.Begin);
            bwori.Write(StructConverter.StructToBytes(scwHdr));

            stmori.SetLength(endpos);
            stmori.Close();

            return(true);
        }