protected async Task InternalCreateIRD(string savePath, CancellationToken cancellation, string isoPath = null)
{
byte[] buffer = new byte[Utilities.SectorSize];
List <FileHash> fileList = new List <FileHash>();
try
{
// First, get the partition table of this iso
using (Stream fs = Open())
{
if (fs == null)
{
return;
}
PS3CDReader reader = new PS3CDReader(fs);
List <DirectoryMemberInformation> files = reader.Members.Where(d => d.IsFile).Distinct().ToList();
StartOfDataSector = files.First().StartSector;
EndOfDataSector = files.Last().StartSector + files.Last().TotalSectors;
var updateFile = files.FirstOrDefault(
d => d.Path.Equals("/PS3_UPDATE/PS3UPDAT.PUP", StringComparison.OrdinalIgnoreCase));
long updateOffset = updateFile != null ? updateFile.StartSector * Utilities.SectorSize : 0;
fileList.AddRange(files.Select(d => new FileHash(d.StartSector, d.Length)));
if (cancellation.IsCancellationRequested)
{
return;
}
IrdFile irdFile = IrdFile.New();
using (Stream s = reader.OpenFile("PS3_GAME\\PARAM.SFO", FileMode.Open, FileAccess.Read))
{
ParamSfo sfo = ParamSfo.Load(s);
irdFile.AppVersion = sfo.GetStringValue("APP_VER");
irdFile.GameVersion = sfo.GetStringValue("VERSION");
irdFile.GameID = sfo.GetStringValue("TITLE_ID");
irdFile.GameName = sfo.GetStringValue("TITLE");
}
Interaction.Instance.ReportMessage("Processing " + (string.IsNullOrEmpty(irdFile.GameName)
? irdFile.GameID
: irdFile.GameName));
irdFile.UpdateVersion = Utilities.FindUpdateVersion(fs, updateOffset);
using (FileStream isoStream = string.IsNullOrEmpty(isoPath)
? null
: new FileStream(isoPath, FileMode.Create, FileAccess.Write))
{
if (isoStream != null)
{
isoStream.SetLength(TotalSectors * Utilities.SectorSize);
}
using (IOStream ioStream = new IOStream(fs, isoStream))
{
ioStream.Seek(0, SeekOrigin.Begin);
// Read the header, until StartOfDataSector (in sectors)
irdFile.Header = new MemoryStream();
for (int i = 0; i < StartOfDataSector; i++)
{
int bytesRead = ioStream.Read(buffer, 0, buffer.Length);
irdFile.Header.Write(buffer, 0, bytesRead);
Interaction.Instance.ReportProgress(i);
if (cancellation.IsCancellationRequested)
{
return;
}
}
irdFile.ExtractAuthData();
// Fix the regions for the actual interesting data
Regions.First().Start = (uint)StartOfDataSector;
Regions.First().Length -= (uint)StartOfDataSector;
Regions.Last().Length = (uint)EndOfDataSector - Regions.Last().Start;
// Now, we should calculate the md5 sums of all regions
Interaction.Instance.ReportMessage("Calculating hashes for " + Regions.Length + " regions.");
for (int i = 0; i < Regions.Length; i++)
{
// Calculate the hash
Interaction.Instance.ReportMessage(
"Calculate hash for region " + i + " (" + Regions[i].Start.ToString("X2") + "-" +
Regions[i].End.ToString("X2") + ")");
ioStream.Seek(Regions[i].Start * Utilities.SectorSize, SeekOrigin.Begin);
using (FileHashStream fhs = new FileHashStream(fileList, Regions[i].Start))
{
await Regions[i].CopyRegion(cancellation, ioStream, fhs);
if (cancellation.IsCancellationRequested)
{
return;
}
irdFile.RegionHashes.Add(Regions[i].SourceHash);
Interaction.Instance.ReportMessage("Region " + i + " hash: " +
Regions[i].SourceHash.AsString());
}
}
ioStream.Seek(EndOfDataSector * Utilities.SectorSize, SeekOrigin.Begin);
irdFile.Footer = new MemoryStream();
for (long i = EndOfDataSector; i < TotalSectors; i++)
{
int bytesRead = ioStream.Read(buffer, 0, buffer.Length);
irdFile.Footer.Write(buffer, 0, bytesRead);
Interaction.Instance.ReportProgress((int)(ioStream.Position / Utilities.SectorSize));
if (cancellation.IsCancellationRequested)
{
return;
}
}
}
}
irdFile.FileHashes = fileList.ToDictionary(t => t.StartSector, t => t.Hash);
irdFile.Save(savePath);
Interaction.Instance.ReportMessage("All done, IRD file saved to " + savePath);
}
}
catch (BadReadException e)
{
Interaction.Instance.ReportMessage(e.Message, ReportType.Fail);
}
catch (AuthenticationException e)
{
Interaction.Instance.ReportMessage(e.Message, ReportType.Fail);
}
}
public static IrdFile Load(string path)
{
Exception ex = null;
bool update_ird_file = false;
IrdFile ird = new IrdFile();
try
{
ird.FullPath = path;
using (Stream s = Open(path))
{
using (CrcCalculatorStream crc = new CrcCalculatorStream(s, true))
{
using (BinaryReader br = new BinaryReader(crc))
{
// Read magic
byte[] magic = br.ReadBytes(4);
if (magic.AsString() != MAGIC.AsString())
{
ex = new FileLoadException("Invalid IRD file", path);
throw ex;
}
// Read version
ird.Version = br.ReadByte();
if (ird.Version != IrdVersion)
{
if (!CompatibleVersions.Any(v => v == ird.Version))
{
ex = new FileLoadException("Unsupported IRD file version (Found version " + ird.Version + ")",
path);
throw ex;
}
update_ird_file = true;
}
ird.gameId = Encoding.ASCII.GetString(br.ReadBytes(9)).Trim('\0');
ird.GameName = br.ReadString();
// Read version of update file
byte[] update = br.ReadBytes(4);
ird.UpdateVersion = Encoding.ASCII.GetString(update).Trim('\0');
// Read the gameversion
byte[] gameVersion = br.ReadBytes(5);
ird.GameVersion = Encoding.ASCII.GetString(gameVersion).Trim('\0');
byte[] appVersion = br.ReadBytes(5);
ird.AppVersion = Encoding.ASCII.GetString(appVersion).Trim('\0');
// Read header and footer sectors
ird.Header = br.Uncompress();
ird.Footer = br.Uncompress();
// Read region hashes
int amountOfHashes = br.ReadByte();
for (int i = 0; i < amountOfHashes; i++)
{
byte[] hash = br.ReadBytes(0x10);
ird.RegionHashes.Add(hash);
}
// Read file hashes
int amountOfFiles = br.ReadInt32();
ird.FileHashes = new Dictionary <long, byte[]>(amountOfFiles);
for (int i = 0; i < amountOfFiles; i++)
{
long sector = br.ReadInt64();
byte[] hash = br.ReadBytes(0x10);
ird.FileHashes.Add(sector, hash);
}
// Read amount of attachments and extra config fields
int extraConfig = br.ReadUInt16();
int attachments = br.ReadUInt16();
// Yes, we don't use these for now, but we might in the future
ird.Data1 = br.ReadBytes(0x10);
ird.Data2 = br.ReadBytes(0x10);
ird.PIC = br.ReadBytes(0x73);
}
ird.Crc = (uint)crc.Crc;
}
byte[] crcValue = new byte[4];
s.Read(crcValue, 0, 4);
if (ird.Crc != BitConverter.ToUInt32(crcValue, 0))
{
ex = new FileLoadException("Invalid CRC value in the IRD file", path);
throw ex;
}
}
if (update_ird_file)
{
Interaction.Instance.ReportMessage("Updating IRD file to latest version: " + Path.GetFileName(path));
ird.Save(path);
}
return(ird);
}
catch (ZlibException)
{
// Annoying bug in the zlib decompression of Ionic.Zip
if (ex != null)
{
throw ex;
}
return(ird);
}
catch (EndOfStreamException e)
{
throw new FileLoadException("Unexpected end of IRD file", path, e);
}
}