static int GetInstallerVersion(Stream decompressedStream, BinaryReader binaryReader, ushort fileNumber,
long dataStreamLength)
{
if (installerVersion > -1)
{
return(installerVersion);
}
if (TestInstallerVersion("40", TryParse40, decompressedStream, binaryReader, fileNumber, dataStreamLength))
{
return(40);
}
if (TestInstallerVersion("35", TryParse35, decompressedStream, binaryReader, fileNumber, dataStreamLength))
{
return(35);
}
if (TestInstallerVersion("30", TryParse30, decompressedStream, binaryReader, fileNumber, dataStreamLength))
{
return(30);
}
if (TestInstallerVersion("20", TryParse20, decompressedStream, binaryReader, fileNumber, dataStreamLength))
{
return(20);
}
Bio.Error($"Failed to determine installer version. Please send a bug report if you want the file to be supported in a future version.", Bio.EXITCODE.NOT_SUPPORTED);
return(-1);
}
static void CheckMagic(int magic)
{
if (magic == MAGIC)
{
return;
}
Bio.Error("The input file is not a valid Godot package file.", Bio.EXITCODE.INVALID_INPUT);
}
static void ParseCommandLine(List <string> args)
{
convertAssets = args.Remove("--convert") || args.Remove("-c");
if (args.Count < 1)
{
Bio.Error("Please specify the path to a Godot .pck or .exe file.", Bio.EXITCODE.INVALID_INPUT);
}
inputFile = args[0];
if (!File.Exists(inputFile))
{
Bio.Error("The input file " + inputFile + " does not exist. Please make sure the path is correct.", Bio.EXITCODE.IO_ERROR);
}
outputDirectory = args.Count > 1? args[1]: Path.Combine(Path.GetDirectoryName(inputFile), Path.GetFileNameWithoutExtension(inputFile));
Bio.Debug("Input file: " + inputFile);
Bio.Debug("Output directory: " + outputDirectory);
}
static void ParseFileList(Stream decompressedStream, long dataStreamLength)
{
var binaryReader = new BinaryReader(decompressedStream);
var fileNumber = binaryReader.ReadUInt16();
filesInfos = new List <FileInfo>();
decompressedStream.Skip(2); // Unknown. Maybe fileNumber is 4 bytes?
Bio.Cout("\n" + fileNumber + " files in installer\n");
installerVersion = GetInstallerVersion(decompressedStream, binaryReader, fileNumber, dataStreamLength);
Func <Stream, BinaryReader, FileInfo> parsingFunction = TryParse30;
if (installerVersion >= 40)
{
parsingFunction = TryParse40;
}
else if (installerVersion >= 30)
{
parsingFunction = TryParse30;
}
else if (installerVersion >= 20)
{
parsingFunction = TryParse20;
}
else
{
Bio.Error($"Unsupported installer version {installerVersion}. Please send a bug report if you want the file to be supported in a future version.", Bio.EXITCODE.NOT_SUPPORTED);
}
Bio.Cout($"\nStarting extraction as installer version {installerVersion}\n");
for (var i = 0; i < fileNumber; i++)
{
var fileInfo = parsingFunction(decompressedStream, binaryReader);
Bio.Debug(string.Format("Node {0} at offset {1}, size: {2}, end: {3}", i, fileInfo.nodeStart, fileInfo.nodeSize, fileInfo.nodeEnd));
if (!fileInfo.IsValid(dataStreamLength))
{
Bio.Error($"The file could not be extracted as installer version {installerVersion}. Please try to manually set the correct version using the command line switch -v.", Bio.EXITCODE.RUNTIME_ERROR);
}
#if DEBUG
if (dumpBlocks)
{
using (var ms = new MemoryStream((int)fileInfo.nodeSize)) {
decompressedStream.Position = fileInfo.nodeStart;
decompressedStream.Copy(ms, (int)fileInfo.nodeSize);
decompressedStream.Position = fileInfo.nodeEnd;
SaveToFile(ms, "FileMeta" + i + ".bin");
}
}
#endif
if (fileInfo.type != 0)
{
decompressedStream.Position = fileInfo.nodeEnd;
continue;
}
filesInfos.Add(fileInfo);
Bio.Debug(fileInfo);
}
}
static void Main(string[] args)
{
const string USAGE = "[<options>...] <installer> [<output_directory>]\n\n" +
"<options>:\n" +
" -v <version>\tExtract as installer version <version>. Auto-detection might not always work correctly, so it is possible to explicitly set the installer version.\n\n" +
" -db\tDump blocks. Save additional installer data like registry changes, license files and the uninstaller. This is considered raw data and might not be readable or usable.\n\n" +
" -si\tSimulate extraction without writing files to disk.";
Bio.Header("cicdec - A Clickteam Install Creator unpacker", VERSION, "2019-2020", "Extracts files from installers made with Clickteam Install Creator", USAGE);
inputFile = ParseCommandLine(args);
var inputStream = File.OpenRead(inputFile);
var binaryReader = new BinaryReader(inputStream);
var inputStreamLength = inputStream.Length;
// First we need to find the data section. The simplest way to do so
// is searching for the signature 0x77, 0x77, 0x67, 0x54, 0x29, 0x48
var startOffset = FindStartOffset(binaryReader);
if (startOffset < 0)
{
Bio.Error("Failed to find overlay signature.", Bio.EXITCODE.INVALID_INPUT);
}
Bio.Cout("Starting extraction at offset " + startOffset + "\n");
inputStream.Position = startOffset;
// The data section consists of a varying number of data blocks,
// whose headers give information about the type of data contained inside.
while (inputStream.Position + BLOCK_HEADER_SIZE <= inputStreamLength)
{
var blockId = binaryReader.ReadUInt16();
inputStream.Skip(2); // unknown
var blockSize = binaryReader.ReadUInt32();
var blockType = (BLOCK_TYPE)blockId;
var nextBlockPos = inputStream.Position + blockSize;
Bio.Cout(string.Format("Reading block 0x{0:X} {1,-16} with size {2}", blockId, (BLOCK_TYPE)blockId, blockSize));
var outputFileName = string.Format("Block 0x{0:X} {1}.bin", blockId, (BLOCK_TYPE)blockId);
if (blockType == BLOCK_TYPE.FILE_DATA)
{
// Data block should always be last, but better be safe and parse all other blocks before
dataBlockStartPosition = inputStream.Position;
if (dumpBlocks)
{
using (var ms = inputStream.Extract((int)blockSize)) {
SaveToFile(ms, outputFileName);
}
}
continue;
}
else if (blockType == BLOCK_TYPE.FILE_LIST)
{
fileListStream = UnpackStream(binaryReader, blockSize);
if (fileListStream == null)
{
Bio.Error("Failed to decompress file list", Bio.EXITCODE.RUNTIME_ERROR);
}
if (dumpBlocks)
{
SaveToFile(fileListStream, outputFileName);
}
fileListStream.MoveToStart();
}
else if (dumpBlocks)
{
using (var decompressedStream = UnpackStream(binaryReader, blockSize)) {
SaveToFile(decompressedStream, outputFileName);
}
}
Bio.Debug("Pos: " + inputStream.Position + ", expected: " + nextBlockPos);
inputStream.Position = nextBlockPos;
}
if (fileListStream == null)
{
Bio.Error("File list could not be read. Please send a bug report if you want the file to be supported in a future version.", Bio.EXITCODE.NOT_SUPPORTED);
}
// Install Creator supports external data files, instead of integrating
// the files into the executable. This actually means the data block is
// saved as a separate file, which we just need to read.
var dataFilePath = Path.Combine(Path.GetDirectoryName(inputFile), Path.GetFileNameWithoutExtension(inputFile) + ".D01");
if (File.Exists(dataFilePath))
{
Bio.Debug("External data file found");
using (var dataFileStream = File.OpenRead(dataFilePath))
using (var offsetStream = new OffsetStream(dataFileStream, 4)) // Data files seem to have a 4 byte header
using (var concatenatedStream = inputStream.Concatenate(offsetStream)) {
ParseFileList(fileListStream, concatenatedStream.Length);
using (var concatenatedStreamBinaryReader = new BinaryReader(concatenatedStream)) {
ExtractFiles(concatenatedStream, concatenatedStreamBinaryReader);
}
}
}
else if (dataBlockStartPosition < 0)
{
Bio.Error("Could not find data block in installer and there is no external data file. The installer is likely corrupt.", Bio.EXITCODE.RUNTIME_ERROR);
}
else
{
ParseFileList(fileListStream, inputStreamLength);
ExtractFiles(inputStream, binaryReader);
}
if (failedExtractions > 0)
{
if (failedExtractions == filesInfos.Count)
{
Bio.Error("Extraction failed. The installer is either encrypted or a version, which is currently not supported.", Bio.EXITCODE.NOT_SUPPORTED);
}
Bio.Warn(failedExtractions + " files failed to extract.");
}
else
{
Bio.Cout("All OK");
}
Bio.Pause();
}
static string ParseCommandLine(string[] args)
{
var count = args.Length - 1;
if (count < 0)
{
Bio.Error("No input file specified.", Bio.EXITCODE.INVALID_INPUT);
}
var path = args[count];
string inputFile;
if (File.Exists(path))
{
inputFile = path;
outputDirectory = Path.Combine(Path.GetDirectoryName(path), Path.GetFileNameWithoutExtension(path));
}
else
{
outputDirectory = path;
count--;
if (count < 0)
{
Bio.Error("Invalid input file specified.", Bio.EXITCODE.INVALID_INPUT);
}
inputFile = args[count];
}
if (!File.Exists(inputFile))
{
Bio.Error("Invalid input file specified.", Bio.EXITCODE.IO_ERROR);
}
for (var i = 0; i < count; i++)
{
var arg = args[i];
Bio.Debug("Argument: " + arg);
switch (arg)
{
case "--dumpblocks":
case "-db":
dumpBlocks = true;
break;
case "--simulate":
case "-si":
simulate = true;
break;
case "--version":
case "-v":
i++;
if (i >= args.Length)
{
Bio.Error("No installer version specified.", Bio.EXITCODE.INVALID_PARAMETER);
}
try {
installerVersion = Convert.ToInt32(args[i]);
}
catch (FormatException) {
Bio.Error("Invalid installer version specified.", Bio.EXITCODE.INVALID_PARAMETER);
}
break;
default:
Bio.Warn("Unknown command line option: " + arg);
break;
}
}
Bio.Debug("Input file: " + inputFile);
Bio.Debug("Output directory: " + outputDirectory);
Bio.Debug("Dump blocks: " + dumpBlocks);
return(inputFile);
}
static void Main(string[] args)
{
Bio.Header("godotdec", VERSION, "2018-2020", "A simple unpacker for Godot Engine package files (.pck|.exe)",
"[<options>] <input_file> [<output_directory>]\n\nOptions:\n-c\t--convert\tConvert textures and audio files");
if (Bio.HasCommandlineSwitchHelp(args))
{
return;
}
ParseCommandLine(args.ToList());
var failed = 0;
using (var inputStream = new BinaryReader(File.Open(inputFile, FileMode.Open))) {
if (inputStream.ReadInt32() != MAGIC)
{
inputStream.BaseStream.Seek(-4, SeekOrigin.End);
CheckMagic(inputStream.ReadInt32());
inputStream.BaseStream.Skip(-12);
var offset = inputStream.ReadInt64();
inputStream.BaseStream.Skip(-offset - 8);
CheckMagic(inputStream.ReadInt32());
}
Bio.Cout($"Godot Engine version: {inputStream.ReadInt32()}.{inputStream.ReadInt32()}.{inputStream.ReadInt32()}.{inputStream.ReadInt32()}");
// Skip reserved bytes (16x Int32)
inputStream.BaseStream.Skip(16 * 4);
var fileCount = inputStream.ReadInt32();
Bio.Cout($"Found {fileCount} files in package");
Bio.Cout("Reading file index");
var fileIndex = new List <FileEntry>();
for (var i = 0; i < fileCount; i++)
{
var pathLength = inputStream.ReadInt32();
var path = Encoding.UTF8.GetString(inputStream.ReadBytes(pathLength));
var fileEntry = new FileEntry(path.ToString(), inputStream.ReadInt64(), inputStream.ReadInt64());
fileIndex.Add(fileEntry);
Bio.Debug(fileEntry);
inputStream.BaseStream.Skip(16);
//break;
}
if (fileIndex.Count < 1)
{
Bio.Error("No files were found inside the archive", Bio.EXITCODE.RUNTIME_ERROR);
}
fileIndex.Sort((a, b) => (int)(a.offset - b.offset));
var fileIndexEnd = inputStream.BaseStream.Position;
for (var i = 0; i < fileIndex.Count; i++)
{
var fileEntry = fileIndex[i];
Bio.Progress(fileEntry.path, i + 1, fileIndex.Count);
//break;
if (fileEntry.offset < fileIndexEnd)
{
Bio.Warn("Invalid file offset: " + fileEntry.offset);
continue;
}
// TODO: Only PNG compression is supported
if (convertAssets)
{
// https://github.com/godotengine/godot/blob/master/editor/import/resource_importer_texture.cpp#L222
if (fileEntry.path.EndsWith(".stex") && fileEntry.path.Contains(".png"))
{
fileEntry.Resize(32);
fileEntry.ChangeExtension(".stex", ".png");
Bio.Debug(fileEntry);
}
// https://github.com/godotengine/godot/blob/master/core/io/resource_format_binary.cpp#L836
else if (fileEntry.path.EndsWith(".oggstr"))
{
fileEntry.Resize(279, 4);
fileEntry.ChangeExtension(".oggstr", ".ogg");
}
// https://github.com/godotengine/godot/blob/master/scene/resources/audio_stream_sample.cpp#L518
else if (fileEntry.path.EndsWith(".sample"))
{
// TODO
Bio.Warn("The file type '.sample' is currently not supported");
}
}
inputStream.BaseStream.Position = fileEntry.offset;
var destination = Path.Combine(outputDirectory, fileEntry.path);
try {
Action <Stream, Stream> copyFunction = (input, output) => input.Copy(output, (int)fileEntry.size);
inputStream.BaseStream.WriteToFile(destination, PROMPT_ID, copyFunction);
}
catch (Exception e) {
Bio.Error(e);
failed++;
}
}
}
Bio.Cout();
Bio.Cout(failed < 1? "All OK": failed + " files failed to extract");
Bio.Pause();
}