/// <summary>
/// Read the manifest stored in the file
/// </summary>
/// <returns>
/// The list of entries in the manifest
/// </returns>
public List <TOCEntry> ReadManifest()
{
// Always reload the header before reading the manifest
ReadHeader();
uint i = 0;
TOC = new List <TOCEntry>();
for (i = 0; i < m_hdrPSHeader.TocEntries; i++)
{
TOC.Add(new TOCEntry(m_erReader.ReadBytes(16), m_erReader.ReadUInt32(), m_erReader.ReadUInt40(), m_erReader.ReadUInt40()));
}
// Extract the Manifest List
UnpackedFile upfManifest = DecompressFile(0);
m_lstTOCList = new List <string>(System.Text.Encoding.Default.GetString(upfManifest.BinaryFile).Split('\n'));
m_lstTOCList.Insert(0, "manifest.txt"); // Insert an entry for the manifest name
List <TOCEntry> lstTOC = TOC;
TOC = new List <TOCEntry>();
for (i = 0; i < lstTOC.Count; i++)
{
TOC.Add(new TOCEntry(lstTOC[(int)i], m_lstTOCList[(int)i])); // Create a new TOC that includes the file name from the manifest
}
lstTOC = null;
return(TOC);
}
void WriteFile(UnpackedFile arcFile)
{
string outputFileName = m_strTestDirectories + @"\" + arcFile.FileName.Replace('/', '\\');
string outputFolder = outputFileName.Substring(0, outputFileName.LastIndexOf('\\'));
Directory.CreateDirectory(outputFolder);
File.WriteAllBytes(outputFileName, arcFile.BinaryFile);
}
/// <summary>
/// Decompress a pak file
/// </summary>
/// <param name="p_intManifestLocation">The position of the manifest in the pak file</param>
/// <returns></returns>
public UnpackedFile DecompressFile(int p_intManifestLocation)
{
if (p_intManifestLocation > (m_hdrPSHeader.TocEntries - 1))
{
return(new UnpackedFile());
}
byte[] outFile = null;
m_erReader.BaseStream.Position = (long)TOC[p_intManifestLocation].StartOffset; // From manifest
UInt16 isZipped = m_erReader.ReadUInt16();
m_erReader.BaseStream.Position -= 2; // Rewind 2 bytes
ulong cBlockSize = m_hdrPSHeader.BlockSize;
// Calculate the number of blocks the uncompressed file would consume (this is more data than needed for decompression)
//ulong zBlocks = ((TOC[manifestLocation].originalSize - (TOC[manifestLocation].originalSize % cBlockSize)) / cBlockSize)
// + (TOC[manifestLocation].originalSize % cBlockSize) == 0 ? 0u : 1u;
ulong zBlocks = ((TOC[p_intManifestLocation].OriginalSize - (TOC[p_intManifestLocation].OriginalSize % cBlockSize)) / cBlockSize);
if (TOC[p_intManifestLocation].OriginalSize % cBlockSize > 0)
{
zBlocks++;
}
if (isZipped == 0x78da || isZipped == 0x7801) // Stream is compressed
{
ulong fileSize = zBlocks * cBlockSize; // Only pass a part of the whole archive stream to be inflated.
outFile = zlib_net.Inflate(m_erReader.ReadBytes((int)fileSize), (uint)zBlocks, (uint)cBlockSize, TOC[p_intManifestLocation].OriginalSize);
}
else
{
outFile = m_erReader.ReadBytes((int)TOC[p_intManifestLocation].OriginalSize);
}
if (TOC[p_intManifestLocation].OriginalSize != (ulong)outFile.LongLength)
{
throw new InvalidDataException(string.Format("Expected size: {0}, Actual size: {1}", TOC[p_intManifestLocation].OriginalSize, outFile.LongLength));
}
var output = new UnpackedFile();
output.FileName = TOC[p_intManifestLocation].FileName;
output.BinaryFile = outFile;
var output2 = new UnpackedFile(TOC[p_intManifestLocation].FileName, outFile);
return(output);
}
/// <summary>
/// Decompress a pak file
/// </summary>
/// <param name="p_intManifestLocation">The position of the manifest in the pak file</param>
/// <returns></returns>
public UnpackedFile DecompressFile(int p_intManifestLocation)
{
if (p_intManifestLocation > (m_hdrPSHeader.TocEntries - 1))
{
return(new UnpackedFile());
}
byte[] outFile = null;
m_erReader.BaseStream.Position = (long)TOC[p_intManifestLocation].StartOffset; // From manifest
UInt16 isZipped = m_erReader.ReadUInt16();
m_erReader.BaseStream.Position -= 2; // Rewind 2 bytes
ulong cBlockSize = m_hdrPSHeader.BlockSize;
ulong zBlocks = (uint)(Math.Ceiling(TOC[p_intManifestLocation].OriginalSize / (double)cBlockSize));
if (isZipped == 0x78da || isZipped == 0x7801) // Stream is compressed
{
ulong fileSize = zBlocks * cBlockSize; // Only pass a part of the whole archive stream to be inflated.
outFile = ZlibUtils.Inflate(m_erReader.ReadBytes((int)fileSize), (uint)zBlocks, (uint)cBlockSize, TOC[p_intManifestLocation].OriginalSize);
}
else
{
outFile = m_erReader.ReadBytes((int)TOC[p_intManifestLocation].OriginalSize);
}
if (TOC[p_intManifestLocation].OriginalSize != (ulong)outFile.LongLength)
{
throw new InvalidDataException(string.Format("Expected size: {0}, Actual size: {1}", TOC[p_intManifestLocation].OriginalSize, outFile.LongLength));
}
var output = new UnpackedFile();
output.FileName = TOC[p_intManifestLocation].FileName;
output.BinaryFile = outFile;
var output2 = new UnpackedFile(TOC[p_intManifestLocation].FileName, outFile);
return(output);
}
