private void BuildTables()
{
CompoundFileData.RedBlackTreeNode rootLevelTag = new CompoundFileData.RedBlackTreeNode {
DirectoryEntry = this.ole2File.Root,
LeftDID = -1,
RightDID = -1,
MembersDID = -1
};
this.nodes.Add(rootLevelTag);
this.ole2File.Root.VisitAll(new VisitDirectoryEntryHandler(this.ProcessEntry), rootLevelTag);
if (base.shortSectorAllocationTable.Count > 0)
{
base.shortTableSID = CreateChain(base.shortSectorAllocationTable.Count * 4, base.sectorAllocationTable, base.sectorSize);
base.SSATSectorCount = base.sectorAllocationTable.Count - base.shortTableSID;
base.shortStreamContainerSID = CreateChain((int)base.shortStreamContainer.Length, base.sectorAllocationTable, base.sectorSize);
base.shortStreamContainerSize = (int)base.shortStreamContainer.Length;
}
else
{
base.shortTableSID = -2;
base.SSATSectorCount = 0;
base.shortStreamContainerSID = -2;
base.shortStreamContainerSize = 0;
}
base.directoryStreamSID = CreateChain(this.nodes.Count * 128, base.sectorAllocationTable, base.sectorSize);
this.BuildSATAndMAT();
}
private void ProcessEntry(VisitDirectoryEntryArgs args)
{
CompoundFileData.RedBlackTreeNode node = new CompoundFileData.RedBlackTreeNode {
DirectoryEntry = args.CurrentEntry,
LeftDID = -1,
RightDID = -1,
MembersDID = -1
};
int newNodeDID = this.nodes.Add(node);
Ole2Stream currentEntry = args.CurrentEntry as Ole2Stream;
if (currentEntry != null)
{
if (currentEntry.Size < base.shortThreshold)
{
currentEntry.WriteSID = CreateChain(currentEntry.Size, base.shortSectorAllocationTable, base.shortSectorSize);
WriteOle2Stream(currentEntry, base.shortStreamContainer, base.shortSectorSize);
}
else
{
currentEntry.WriteSID = CreateChain(currentEntry.Size, base.sectorAllocationTable, base.sectorSize);
}
}
else
{
args.LevelTags[args.Level] = node;
}
CompoundFileData.RedBlackTreeNode node2 = (RedBlackTreeNode)args.LevelTags[args.Level - 1];
this.InsertNodeToTree(ref node2.MembersDID, node.DirectoryEntry.Name, newNodeDID);
}
private void WriteDirectoryNode(BinaryWriter bw, CompoundFileData.RedBlackTreeNode node)
{
CompoundFileData.DirectoryEntryType rootStorage;
int shortStreamContainerSID;
int shortStreamContainerSize;
Ole2DirectoryEntry directoryEntry = node.DirectoryEntry;
if (directoryEntry == this.ole2File.root)
{
rootStorage = CompoundFileData.DirectoryEntryType.RootStorage;
shortStreamContainerSID = base.shortStreamContainerSID;
shortStreamContainerSize = base.shortStreamContainerSize;
}
else if (directoryEntry is Ole2Storage)
{
rootStorage = CompoundFileData.DirectoryEntryType.UserStorage;
shortStreamContainerSID = 0;
shortStreamContainerSize = 0;
}
else
{
if (!(directoryEntry is Ole2Stream))
{
throw new CompoundFileException("Internal error: unrecognized entry type.");
}
Ole2Stream stream = (Ole2Stream)node.DirectoryEntry;
rootStorage = CompoundFileData.DirectoryEntryType.UserStream;
shortStreamContainerSID = stream.WriteSID;
shortStreamContainerSize = stream.Size;
}
string name = directoryEntry.Name;
string str2 = name;
for (int i = 0; i < str2.Length; i++)
{
char ch = str2[i];
bw.Write(ch);
}
int num3 = 0x20 - name.Length;
for (int j = 0; j < num3; j++)
{
bw.Write(0);
}
bw.Write((ushort)((name.Length + 1) * 2));
bw.Write((byte)rootStorage);
bw.Write(0);
bw.Write(node.LeftDID);
bw.Write(node.RightDID);
bw.Write(node.MembersDID);
bw.Write(directoryEntry.UniqueIdentifier);
bw.Write(directoryEntry.UserFlags);
bw.Write(directoryEntry.TimeStampCreation);
bw.Write(directoryEntry.TimeStampModification);
bw.Write(shortStreamContainerSID);
bw.Write(shortStreamContainerSize);
bw.Write(directoryEntry.NotUsed);
}
private static void AddTreeMembers(Ole2Storage storage, ArrayList nodes, int nodeDID)
{
CompoundFileData.RedBlackTreeNode node = nodes[nodeDID] as RedBlackTreeNode;
if (node.LeftDID != -1)
{
AddTreeMembers(storage, nodes, node.LeftDID);
}
storage.Add(node.DirectoryEntry);
if (node.RightDID != -1)
{
AddTreeMembers(storage, nodes, node.RightDID);
}
}
private void InsertNodeToTree(ref int currentDID, string newNodeName, int newNodeDID)
{
if (currentDID == -1)
{
currentDID = newNodeDID;
}
else
{
CompoundFileData.RedBlackTreeNode node = (RedBlackTreeNode)this.nodes[currentDID];
if (NodeNameLess(newNodeName, node.DirectoryEntry.Name))
{
this.InsertNodeToTree(ref node.LeftDID, newNodeName, newNodeDID);
}
else
{
this.InsertNodeToTree(ref node.RightDID, newNodeName, newNodeDID);
}
}
}
private CompoundFileData.RedBlackTreeNode ReadDirectoryNode(BinaryReader br)
{
CompoundFileData.RedBlackTreeNode node = null;
int num;
char[] chArray = new char[0x20];
for (num = 0; num < 0x20; num++)
{
chArray[num] = (char)br.ReadUInt16();
}
num = 0;
while (num < 0x20)
{
if (chArray[num] == null)
{
break;
}
num++;
}
string name = new string(chArray, 0, num);
br.ReadUInt16();
CompoundFileData.DirectoryEntryType type = (DirectoryEntryType)br.ReadByte();
br.ReadByte();
int num2 = br.ReadInt32();
int num3 = br.ReadInt32();
int num4 = br.ReadInt32();
byte[] buffer = br.ReadBytes(0x10);
byte[] buffer2 = br.ReadBytes(4);
byte[] buffer3 = br.ReadBytes(8);
byte[] buffer4 = br.ReadBytes(8);
int readSID = br.ReadInt32();
int size = br.ReadInt32();
byte[] buffer5 = br.ReadBytes(4);
if (type != CompoundFileData.DirectoryEntryType.Empty)
{
Ole2DirectoryEntry root;
node = new CompoundFileData.RedBlackTreeNode {
LeftDID = num2,
RightDID = num3,
MembersDID = num4
};
switch (type)
{
case CompoundFileData.DirectoryEntryType.UserStorage:
root = new Ole2Storage(name);
break;
case CompoundFileData.DirectoryEntryType.UserStream:
root = new Ole2Stream(name, size, readSID, this);
break;
case CompoundFileData.DirectoryEntryType.RootStorage:
base.shortStreamContainerSize = size;
base.shortStreamContainerSID = readSID;
this.ole2File.root = new Ole2Storage(name);
root = this.ole2File.root;
break;
default:
root = null;
break;
}
root.UniqueIdentifier = buffer;
root.UserFlags = buffer2;
root.TimeStampCreation = buffer3;
root.TimeStampModification = buffer4;
root.NotUsed = buffer5;
node.DirectoryEntry = root;
}
return(node);
}
