private void ReadFileSystem()
{
XFSInputFile ifile = new XFSInputFile(this, this.RootSectorBlockSize * 0x800, this.RootSectorBlock);
this.RootDir = new XDvdFsFileSystemEntry(ifile);
this.CurrentDir = this.RootDir;
ISOFileStreamer ifs = new ISOFileStreamer(this.fileSystemOffset, new BinaryReader(this.GetStream()));
ifs.GetNewFile(ifile);
byte[] buffer = new byte[this.RootSectorBlockSize * 0x800];
ifs.Read(buffer, 0, this.RootSectorBlockSize * 0x800);
this.ReadFileSystemData(buffer, 0, this.RootDir, ifs);
List <XDvdFsFileSystemEntry> fileList = this.RootDir.GetFileList();
fileList.Sort(new FSOutSectorComparer());
XDvdFsFileSystemEntry fse = new XDvdFsFileSystemEntry(new FSFolder("Temp"));
foreach (XDvdFsFileSystemEntry entry2 in fileList)
{
if (((fse.StartSector == entry2.StartSector) && (fse.LogicalFileSize == entry2.LogicalFileSize)) && !entry2.IsFolder)
{
entry2.SetLinkedTo(fse);
}
fse = entry2;
}
}
private void WalkDir(XDvdFsFileSystemEntry fn, List <XDvdFsFileSystemEntry> FileSystemArray, bool folderslast)
{
foreach (XDvdFsFileSystemEntry entry in fn.Files)
{
if (!entry.IsFolder || !folderslast)
{
FileSystemArray.Add(entry);
if (entry.IsFolder && (entry.Files.Count != 0))
{
this.WalkDir(entry, FileSystemArray, folderslast);
}
}
}
if (folderslast)
{
foreach (XDvdFsFileSystemEntry entry2 in fn.Files)
{
if (entry2.IsFolder)
{
FileSystemArray.Add(entry2);
if (entry2.Files.Count != 0)
{
this.WalkDir(entry2, FileSystemArray, folderslast);
}
}
}
}
}
public void SetLinkedTo(XDvdFsFileSystemEntry fse)
{
if (this._copymethod != OutputMethod.Crosslink)
{
this.ParentNode.Files.UpdateSizes(0, 0, (long)(((int)this.LogicalFileSize) * -1));
}
this.linkedTo = fse;
this._copymethod = OutputMethod.Crosslink;
}
public XDvdFsFileSystemEntry GetFileSystem()
{
XDvdFsFileSystemEntry tofolder = this.RootDir.ShallowCopy();
this.RecurseGetFS(this.RootDir, tofolder);
base.isoXDvdFsFileSystem = tofolder;
base.ParseDefaultExecutable();
return(tofolder);
}
private void RecurseGetFS(XDvdFsFileSystemEntry fromfolder, XDvdFsFileSystemEntry tofolder)
{
foreach (XDvdFsFileSystemEntry entry in fromfolder.Files)
{
XDvdFsFileSystemEntry entry2 = entry.ShallowCopy();
tofolder.Files.Add(entry2);
if (entry.IsFolder)
{
this.RecurseGetFS(entry, entry2);
}
}
}
private void ReadFileSystemData(byte[] buffer, int fsOffset, XDvdFsFileSystemEntry parentEntry, ISOFileStreamer ifs)
{
if (fsOffset > buffer.Length)
{
throw new SystemException("Disaster");
}
XFSInputFile ifile = new XFSInputFile(this, buffer, fsOffset);
XDvdFsFileSystemEntry entry = new XDvdFsFileSystemEntry(ifile);
entry.ParentNode = parentEntry;
ushort num = BitConverter.ToUInt16(buffer, fsOffset);
ushort num2 = BitConverter.ToUInt16(buffer, fsOffset + 2);
if (ifile.StartSector == -1)
{
throw new SystemException("Invalid TOC entry");
}
if (num != 0)
{
if ((num * 4) > buffer.Length)
{
throw new SystemException("Disaster 2!");
}
this.ReadFileSystemData(buffer, num * 4, parentEntry, ifs);
}
if (ifile.IsFolder())
{
if ((ifile.StartSector == 0) || (ifile.GetFileLength() == 0L))
{
parentEntry.Files.Add(entry);
}
else
{
byte[] buffer2 = new byte[ifile.GetFileLength()];
ifs.GetNewFile(ifile);
ifs.Read(buffer2, 0, (int)ifile.GetFileLength());
parentEntry.Files.Add(entry);
this.ReadFileSystemData(buffer2, 0, entry, ifs);
}
}
else
{
parentEntry.Files.Add(entry);
}
if (num2 != 0)
{
if ((num2 * 4) > buffer.Length)
{
throw new SystemException("Disaster 3!");
}
this.ReadFileSystemData(buffer, num2 * 4, parentEntry, ifs);
}
}
public XDvdFsFileSystemEntry ShallowCopy()
{
XDvdFsFileSystemEntry entry = new XDvdFsFileSystemEntry(this.GetInfile());
entry.Attributes = this.Attributes;
entry.StartSector = this.StartSector;
entry.CopyMethod = this.CopyMethod;
if (this.CopyMethod == OutputMethod.Crosslink)
{
entry.SetLinkedTo(this.linkedTo);
}
entry.FileName = this.FileName;
return(entry);
}
public string GetPathAsString(bool ShowRoot)
{
XDvdFsFileSystemEntry parentNode = this;
string str = "";
while (parentNode.ParentNode != null)
{
parentNode = parentNode.ParentNode;
if (ShowRoot || (parentNode.ParentNode != null))
{
str = parentNode.FileName + "/" + str;
}
}
return(str);
}
public void ParseDefaultExecutable()
{
this.hasdefaultexe = false;
this.HasMediaID = false;
this.HasRegionFlags = false;
XDvdFsFileSystemEntry sourceXDvdFsFile = new XDvdFsFileSystemEntry(new FSFolder("Temp"));
if (this.GetISOType() == Format.Xbox360)
{
sourceXDvdFsFile = this.isoXDvdFsFileSystem.Files.GetFileByNameNoCase("default.xex");
}
else
{
sourceXDvdFsFile = this.isoXDvdFsFileSystem.Files.GetFileByNameNoCase("default.xbe");
}
if (sourceXDvdFsFile != null)
{
this.hasdefaultexe = true;
this.HasMediaID = true;
this.HasRegionFlags = true;
Trace.WriteLine(sourceXDvdFsFile.FileName + " found, processing");
if (!this.CanStream())
{
FileWriter writer = new FileWriter();
Trace.WriteLine("Source Filesystem cannot be streamed from, copying executable to temp folder");
string destination = AppDomain.CurrentDomain.BaseDirectory + @"temp\" + Path.GetRandomFileName();
Trace.WriteLine("Copying to " + destination);
writer.SaveFileToDisk(sourceXDvdFsFile, destination);
sourceXDvdFsFile.SetInFile(new FSFile(destination));
}
if (this.GetISOType() == Format.Xbox360)
{
Stream infile = sourceXDvdFsFile.GetStream();
XEXFile file = new XEXFile(infile);
Trace.WriteLine("Xex MediaID = " + BitConverter.ToString(file.MediaID));
file.MediaID.CopyTo(this.MediaID, 0);
infile.Close();
}
else
{
Stream stream = sourceXDvdFsFile.GetStream();
XBEFile file2 = new XBEFile(stream);
this.MediaID = new byte[0x10];
stream.Close();
}
}
}
// Methods
private int alignTree(FileSystemFolder fsfolder, List <BinaryTree> treelist, Dictionary <string, int> fsDictionary, string[] fsArray)
{
bool flag = true;
int num = 0;
while (flag)
{
int num2 = 1;
flag = false;
foreach (BinaryTree tree in treelist)
{
string str = fsArray[tree.listposition];
XDvdFsFileSystemEntry entry = fsfolder[fsDictionary[str]];
if ((tree.offset < (0x800 * num2)) && ((tree.offset + (entry.FileName.Length + 14)) > (0x800 * num2)))
{
int offset = tree.offset;
int num4 = (0x800 * num2) - tree.offset;
num += num4;
foreach (BinaryTree tree2 in treelist)
{
if (tree2.offset >= offset)
{
tree2.offset += num4;
}
if (tree2.leftNodeOffset >= offset)
{
tree2.leftNodeOffset += num4;
}
if (tree2.rightNodeOffset >= offset)
{
tree2.rightNodeOffset += num4;
}
}
flag = true;
num2++;
}
}
}
return(num);
}
public byte[] DirContentsToByteArray(FileSystemFolder fsfolder)
{
if (fsfolder.Count == 0)
{
return(new byte[0]);
}
Dictionary <string, int> fsDictionary = new Dictionary <string, int>();
List <string> list = new List <string>(fsfolder.Count);
for (int i = 0; i < fsfolder.Count; i++)
{
if (fsfolder[i].CopyMethod != OutputMethod.Special)
{
fsDictionary.Add(fsfolder[i].FileName, i);
list.Add(fsfolder[i].FileName);
}
}
string[] array = list.ToArray();
Array.Sort <string>(array, new FSFilenameComparer());
BinaryTree tree = new BinaryTree();
int maxcentre = (array.Length - 1) / 2;
if (maxcentre != 0)
{
maxcentre = BinaryTree.findTreeCentre(maxcentre, array.Length - 1);
}
List <BinaryTree> treeList = new List <BinaryTree>();
int num3 = tree.populate(array, array.Length - 1, 0, 0, maxcentre, treeList);
if (num3 > 0x800)
{
num3 += this.alignTree(fsfolder, treeList, fsDictionary, array);
}
byte[] buffer = new byte[num3];
for (int j = 0; j < num3; j++)
{
buffer[j] = 0xff;
}
foreach (BinaryTree tree2 in treeList)
{
string str = array[tree2.listposition];
XDvdFsFileSystemEntry entry = fsfolder[fsDictionary[str]];
tree2.leftNodeOffset /= 4;
tree2.rightNodeOffset /= 4;
BitConverter.GetBytes((short)tree2.leftNodeOffset).CopyTo(buffer, tree2.offset);
BitConverter.GetBytes((short)tree2.rightNodeOffset).CopyTo(buffer, (int)(tree2.offset + 2));
BitConverter.GetBytes(entry.StartSector).CopyTo(buffer, (int)(tree2.offset + 4));
if (entry.IsFolder)
{
BitConverter.GetBytes((uint)entry.Files.LogicalDirTableSize).CopyTo(buffer, (int)(tree2.offset + 8));
}
else
{
BitConverter.GetBytes((uint)entry.LogicalFileSize).CopyTo(buffer, (int)(tree2.offset + 8));
}
BitConverter.GetBytes((short)entry.Attributes).CopyTo(buffer, (int)(tree2.offset + 12));
BitConverter.GetBytes((short)((byte)entry.FileName.Length)).CopyTo(buffer, (int)(tree2.offset + 13));
ASCIIEncoding encoding = new ASCIIEncoding();
encoding.GetBytes(entry.FileName).CopyTo(buffer, (int)(tree2.offset + 14));
}
return(buffer);
}
