Exemplo n.º 1
0
        public PKFPackage(IFile file)
        {
            FileName = file.Name;
            root     = new PKFDirectory(null, ROOT_DIR);
            stream   = file.GetStream();

            if (stream.ReadASCIINullTerminated(8) != "PACKAGE ")
            {
                throw new InvalidDataException("File does not have a valid PACKAGE header.");
            }

            stream.Position += 6; // Unknown int32 + int16
            long fileStart = stream.ReadUInt32BE() + stream.Position;

            while (stream.Position < fileStart)
            {
                string pathName, fileName;
                uint   offset, size, compressedSize;
                bool   compressed = false;

                // Reads file entry
                stream.Position += 4; // Hash?
                pathName         = stream.ReadASCIINullTerminated();
                offset           = stream.ReadUInt32BE();
                size             = compressedSize = stream.ReadUInt32BE();

                // ZLIB (12 bytes)
                // "ZLIB"
                // INT32 - Always 1
                // INT32 - Max block size? (0x8080)

                // Checks if file is compressed
                if (size > 12)
                {
                    long nextEntry = stream.Position;
                    stream.Position = offset;
                    bool zlib = stream.ReadASCIINullTerminated(4) == "ZLIB";

                    if (zlib)
                    {
                        compressed = Convert.ToBoolean(stream.ReadUInt32BE());
                        size       = stream.ReadUInt32BE(); // Uncompressed size

                        offset         += 12;
                        compressedSize -= 12;
                    }

                    stream.Position = nextEntry;
                }

                // Adds file
                PKFDirectory dir = MakeOrGetDirectory(pathName);
                fileName = pathName.Split('\\').Last();
                dir.AddFile(new PKFFile(fileName, dir, size, compressed, compressedSize, offset, stream));
            }
        }
Exemplo n.º 2
0
        private PKFDirectory MakeOrGetDirectory(string path)
        {
            string[]   breadcrumbs = path.Split('\\');
            IDirectory last        = root;
            IDirectory current;

            if (breadcrumbs.Length == 1)
            {
                return(root);
            }

            for (var idx = 0; idx < breadcrumbs.Length - 1; idx++)
            {
                if (!last.TryGetDirectory(breadcrumbs[idx], out current))
                {
                    current = new PKFDirectory(last, breadcrumbs[idx]);
                    (last as PKFDirectory).AddDir(current as PKFDirectory);
                }
                last = current;
            }

            return(last as PKFDirectory);
        }