private void Parse(PstFileReader reader, ulong offset, IndexTree tree)
{
// PRGX: make sure offset is valid
if (offset > (ulong)reader.BaseStream.Length)
{
throw new DataStructureException("Parse - offset beyond length of stream");
}
reader.BaseStream.Position = (long)offset;
if (!reader.PstFile.Is64Bit)
{
//32bit
byte[] itemsBuffer = reader.ReadBytes(496);
this.itemCount = reader.ReadByte();
this.maximumItemCount = reader.ReadByte();
this.itemSize = reader.ReadByte();
this.level = reader.ReadByte();
this.type = reader.ReadUInt16();
this.backPointer = reader.ReadUInt32();
this.crc = reader.ReadUInt32();
if (type == 0x8080 && level > 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[12];
System.Array.Copy(itemsBuffer, i * 12, itemBuffer, 0, 12);
DataStructureIndexNodeItem item = new DataStructureIndexNodeItem();
item.Id = BitConverter.ToUInt32(itemBuffer, 0);
item.BackPointer = BitConverter.ToUInt32(itemBuffer, 4);
item.Offset = BitConverter.ToUInt32(itemBuffer, 8);
items.Add(item);
IndexNode childIndexNode = new IndexNode(reader, item.Offset, tree);
childIndexNode.Parent = this;
this.children.Add(childIndexNode);
}
}
else if (type == 0x8080 && level == 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[12];
System.Array.Copy(itemsBuffer, i * 12, itemBuffer, 0, 12);
DataStructure item = new DataStructure(itemBuffer);
item.Id = BitConverter.ToUInt32(itemBuffer, 0);
item.Offset = BitConverter.ToUInt32(itemBuffer, 4);
item.Size = BitConverter.ToUInt16(itemBuffer, 8);
item.Flag = BitConverter.ToUInt16(itemBuffer, 10);
items.Add(item);
tree.Nodes.Add(item.Id, item);
}
}
else if (type == 0x8181 && level > 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[12];
System.Array.Copy(itemsBuffer, i * 12, itemBuffer, 0, 12);
ItemDescriptorIndexNodeItem item = new ItemDescriptorIndexNodeItem();
item.Id = BitConverter.ToUInt32(itemBuffer, 0);
item.BackPointer = BitConverter.ToUInt32(itemBuffer, 4);
item.Offset = BitConverter.ToUInt32(itemBuffer, 8);
items.Add(item);
IndexNode childIndexNode = new IndexNode(reader, item.Offset, tree);
childIndexNode.Parent = this;
this.children.Add(childIndexNode);
}
}
else if (type == 0x8181 && level == 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[16];
System.Array.Copy(itemsBuffer, i * 16, itemBuffer, 0, 16);
ItemDescriptor item = new ItemDescriptor();
item.Id = BitConverter.ToUInt32(itemBuffer, 0);
item.TableId = BitConverter.ToUInt32(itemBuffer, 4);
item.LocalDescriptorListId = BitConverter.ToUInt32(itemBuffer, 8);
item.ParentItemDescriptorId = BitConverter.ToUInt32(itemBuffer, 12);
items.Add(item);
tree.Nodes.Add(item.Id, item);
//root folder is parent to self.
if (item.Id == 290)
{
item.ParentItemDescriptorId = 0;
}
}
}
else
{
throw new ApplicationException("Unknown IndexNode type!");
}
}
else
{
//64bit
byte[] itemsBuffer = reader.ReadBytes(488);
this.itemCount = reader.ReadByte();
this.maximumItemCount = reader.ReadByte();
this.itemSize = reader.ReadByte();
this.level = reader.ReadByte();
uint emptyValue = reader.ReadUInt32();
this.type = reader.ReadUInt16();
ushort unknow1 = reader.ReadUInt16();
this.crc = reader.ReadUInt32();
this.backPointer = reader.ReadUInt64();
if (type == 0x8080 && level > 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[24];
System.Array.Copy(itemsBuffer, i * 24, itemBuffer, 0, 24);
DataStructureIndexNodeItem item = new DataStructureIndexNodeItem();
item.Id = BitConverter.ToUInt64(itemBuffer, 0);
item.BackPointer = BitConverter.ToUInt64(itemBuffer, 8);
item.Offset = BitConverter.ToUInt64(itemBuffer, 16);
// PRGX: offset from start of file is only valid when greater than zero
if (item.Offset > 0 && item.Offset < (ulong)reader.BaseStream.Length)
{
items.Add(item);
IndexNode childIndexNode = new IndexNode(reader, item.Offset, tree);
childIndexNode.Parent = this;
this.children.Add(childIndexNode);
}
}
}
else if (type == 0x8080 && level == 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[24];
System.Array.Copy(itemsBuffer, i * 24, itemBuffer, 0, 24);
DataStructure item = new DataStructure(itemBuffer);
item.Id = BitConverter.ToUInt64(itemBuffer, 0);
item.Offset = BitConverter.ToUInt64(itemBuffer, 8);
item.Size = BitConverter.ToUInt16(itemBuffer, 16);
item.Flag = BitConverter.ToUInt16(itemBuffer, 18);
// PRGX: offset from start of file is only valid when greater than zero
if (item.Offset > 0 && !tree.Nodes.ContainsKey(item.Id))
{
items.Add(item);
tree.Nodes.Add(item.Id, item);
}
}
}
else if (type == 0x8181 && level > 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[24];
System.Array.Copy(itemsBuffer, i * 24, itemBuffer, 0, 24);
ItemDescriptorIndexNodeItem item = new ItemDescriptorIndexNodeItem();
item.Id = BitConverter.ToUInt64(itemBuffer, 0);
item.BackPointer = BitConverter.ToUInt64(itemBuffer, 8);
item.Offset = BitConverter.ToUInt64(itemBuffer, 16);
// PRGX: offset from start of file is only valid when greater than zero
if (item.Offset > 0)
{
items.Add(item);
IndexNode childIndexNode = new IndexNode(reader, item.Offset, tree);
childIndexNode.Parent = this;
this.children.Add(childIndexNode);
}
}
}
else if ((type == 0x8181 || type == 0x0) && level == 0)
{
for (int i = 0; i < itemCount; i++)
{
byte[] itemBuffer = new byte[32];
System.Array.Copy(itemsBuffer, i * 32, itemBuffer, 0, 32);
ItemDescriptor item = new ItemDescriptor();
item.Id = BitConverter.ToUInt64(itemBuffer, 0);
item.TableId = BitConverter.ToUInt64(itemBuffer, 8);
item.LocalDescriptorListId = BitConverter.ToUInt64(itemBuffer, 16);
item.ParentItemDescriptorId = BitConverter.ToUInt32(itemBuffer, 24);
if (item.Id > 0 && !tree.Nodes.ContainsKey(item.Id))
{
items.Add(item);
tree.Nodes.Add(item.Id, item);
//root folder is parent to self.
if (item.Id == 290)
{
item.ParentItemDescriptorId = 0;
}
}
}
}
else
{
throw new ApplicationException("Unknown IndexNode type: " + type + " level: " + level);
}
}
}
private void Parse(Stream stream, System.Text.Encoding encoding)
{
this.encoding = encoding;
this.stream = stream;
this.reader = new PstFileReader(this, stream);
uint signature = reader.ReadUInt32();//offset 0
if (signature != 0x4e444221)
{
Close();
throw new FileFormatException("Invalid file format!");
}
uint crc32 = reader.ReadUInt32(); //offset 4
ushort contentType = reader.ReadUInt16(); //offset 8
ushort dataVersion = reader.ReadUInt16(); //offset 10
ushort contentVersion = reader.ReadUInt16(); //offset 12
byte creationPlatform = reader.ReadByte(); //offset 14
byte accessPlatform = reader.ReadByte(); //offset 15
uint unknown1 = reader.ReadUInt32(); //offset 16
uint unknown2 = reader.ReadUInt32(); //offset 20
if (dataVersion == 0x0015 || dataVersion == 0x0017)
{
is64Bit = true;
}
if (!is64Bit)
{
//32-bit file
uint unknown3 = reader.ReadUInt32(); //offset 24
uint unknown4 = reader.ReadUInt32(); //offset 28
uint unknown5 = reader.ReadUInt32(); //offset 32
byte[] unknownArray1 = reader.ReadBytes(32); //offset 36
byte[] unknownArray2 = reader.ReadBytes(32);
byte[] unknownArray3 = reader.ReadBytes(32);
byte[] unknownArray4 = reader.ReadBytes(32);
uint unknown6 = reader.ReadUInt32(); //offset 164
size = reader.ReadInt32(); //offset 168
uint lastDataAllocationTableOffset = reader.ReadUInt32(); //offset 172
uint unknown7 = reader.ReadUInt32(); //offset 176
uint unknown8 = reader.ReadUInt32(); //offset 180
descriptorIndexBackPointer = reader.ReadUInt32();
descriptorIndex = reader.ReadUInt32();
dataIndexBackPointer = reader.ReadUInt32();
dataIndex = reader.ReadUInt32();
uint unknown9 = reader.ReadUInt32(); //offset 200
byte[] dataAllocationTableMap = reader.ReadBytes(128); //offset 204
byte[] indexNodeAllocationTableMap = reader.ReadBytes(128); //offset 332
byte senitinal = reader.ReadByte(); //offset 460
encryptionType = EnumUtil.ParseEncryptionType(reader.ReadByte()); //offset 461
//AllocationTable dataAllocationTable = new AllocationTable(reader, 17408); //offset 0x4400
//AllocationTable indexNodeAllocationTable = new AllocationTable(reader, 17920); //offset 0x4600
}
else
{
//64-bit file
ulong unknown3 = reader.ReadUInt64(); //offset 24
ulong unknown4 = reader.ReadUInt64(); //offset 32
uint unknown5 = reader.ReadUInt32(); //offset 40
byte[] unknownArray1 = reader.ReadBytes(32); //offset 36
byte[] unknownArray2 = reader.ReadBytes(32);
byte[] unknownArray3 = reader.ReadBytes(32);
byte[] unknownArray4 = reader.ReadBytes(32);
uint unknown61 = reader.ReadUInt32(); //offset 172
uint unknown62 = reader.ReadUInt32(); //offset 176
uint unknown63 = reader.ReadUInt32(); //offset 180
size = reader.ReadInt64(); //offset 184
ulong lastDataAllocationTableOffset = reader.ReadUInt64(); //offset 192
ulong unknown7 = reader.ReadUInt64(); //offset 200
ulong unknown8 = reader.ReadUInt64(); //offset 208
descriptorIndexBackPointer = reader.ReadUInt64(); //offset 216
descriptorIndex = reader.ReadUInt64(); //offset 224
dataIndexBackPointer = reader.ReadUInt64(); //offset 232
dataIndex = reader.ReadUInt64(); //offset 240
uint unknown9 = reader.ReadUInt32(); //offset 248
uint unknown10 = reader.ReadUInt32(); //offset 252
byte[] dataAllocationTableMap = reader.ReadBytes(128); //offset 256
byte[] indexNodeAllocationTableMap = reader.ReadBytes(128); //offset 384
byte senitinal = reader.ReadByte(); //offset 512
encryptionType = EnumUtil.ParseEncryptionType(reader.ReadByte()); //offset 513
}
descriptorIndexTree = new IndexTree(reader, descriptorIndex);
descriptorIndexTree.SetParent(); //set parent folder
dataIndexTree = new IndexTree(reader, dataIndex);
ulong nameToIdMapId = 97;
ulong messageStoreId = 33;
ulong rootId = 290;
ulong mailboxRootId = 32802; //32802 or 32834
Table nameToIdMapTable = null;
Table messageStoreTable = null;
Table rootTable = null;
Table mailboxRootTable = null;
ItemDescriptor nameToIdMapItemDescriptor = descriptorIndexTree.Nodes.ContainsKey(nameToIdMapId) ? (ItemDescriptor)descriptorIndexTree.Nodes[nameToIdMapId] : null;
ItemDescriptor messageStoreItemDescriptor = descriptorIndexTree.Nodes.ContainsKey(messageStoreId) ? (ItemDescriptor)descriptorIndexTree.Nodes[messageStoreId] : null;
ItemDescriptor rootItemDescriptor = descriptorIndexTree.Nodes.ContainsKey(rootId) ? (ItemDescriptor)descriptorIndexTree.Nodes[rootId] : null;
ItemDescriptor mailboxRootItemDescriptor = descriptorIndexTree.Nodes.ContainsKey(mailboxRootId) ? (ItemDescriptor)descriptorIndexTree.Nodes[mailboxRootId] : null;
if (mailboxRootItemDescriptor == null)
{
mailboxRootItemDescriptor = descriptorIndexTree.Nodes.ContainsKey((ulong)32834) ? (ItemDescriptor)descriptorIndexTree.Nodes[(ulong)32834] : null;
}
if (nameToIdMapItemDescriptor == null)
{
throw new DataStructureException("Unresolvable Data Structure issue with: nameToIdMapItemDescriptor");
}
DataStructure nameToIdMapLocalDescriptorListNode = Util.GetLocalDescriptionListNode(reader.PstFile.DataIndexTree, nameToIdMapItemDescriptor.LocalDescriptorListId);
DataStructure nameToIdMapDataNode = reader.PstFile.DataIndexTree.GetDataStructure(nameToIdMapItemDescriptor.TableId);
if (nameToIdMapDataNode != null)
{
LocalDescriptorList nameToIdMapLocalDescriptorList = Util.GetLocalDescriptorList(reader, nameToIdMapLocalDescriptorListNode);
nameToIdMapTable = Util.GetTable(reader, nameToIdMapDataNode, nameToIdMapLocalDescriptorList);
}
if (messageStoreItemDescriptor == null)
{
throw new DataStructureException("Unresolvable Data Structure issue with: messageStoreItemDescriptor");
}
DataStructure messageStoreLocalDescriptorListNode = Util.GetLocalDescriptionListNode(reader.PstFile.DataIndexTree, messageStoreItemDescriptor.LocalDescriptorListId);
DataStructure messageStoreDataNode = reader.PstFile.DataIndexTree.GetDataStructure(messageStoreItemDescriptor.TableId);
if (messageStoreDataNode != null)
{
LocalDescriptorList messageStoreLocalDescriptorList = Util.GetLocalDescriptorList(reader, messageStoreLocalDescriptorListNode);
messageStoreTable = Util.GetTable(reader, messageStoreDataNode, messageStoreLocalDescriptorList);
}
if (rootItemDescriptor == null)
{
throw new DataStructureException("Unresolvable Data Structure issue with: rootItemDescriptor");
}
DataStructure rootLocalDescriptorListNode = Util.GetLocalDescriptionListNode(reader.PstFile.DataIndexTree, rootItemDescriptor.LocalDescriptorListId);
DataStructure rootDataNode = reader.PstFile.DataIndexTree.GetDataStructure(rootItemDescriptor.TableId);
if (rootDataNode != null)
{
LocalDescriptorList rootLocalDescriptorList = Util.GetLocalDescriptorList(reader, rootLocalDescriptorListNode);
rootTable = Util.GetTable(reader, rootDataNode, rootLocalDescriptorList);
}
if (mailboxRootItemDescriptor != null)
{
DataStructure mailboxRootLocalDescriptorListNode = Util.GetLocalDescriptionListNode(reader.PstFile.DataIndexTree, mailboxRootItemDescriptor.LocalDescriptorListId);
DataStructure mailboxRootDataNode = reader.PstFile.DataIndexTree.GetDataStructure(mailboxRootItemDescriptor.TableId);
if (mailboxRootDataNode != null)
{
LocalDescriptorList mailboxRootLocalDescriptorList = Util.GetLocalDescriptorList(reader, mailboxRootLocalDescriptorListNode);
mailboxRootTable = Util.GetTable(reader, mailboxRootDataNode, mailboxRootLocalDescriptorList);
}
}
if (nameToIdMapTable != null)
{
nameToIdMap = new NameToIdMap(nameToIdMapTable);
FillNamedIdToTag();
}
if (messageStoreTable != null)
{
messageStore = new MessageStore(messageStoreTable);
}
if (rootTable != null)
{
root = new Folder(reader, rootItemDescriptor, rootTable);
}
if (mailboxRootItemDescriptor != null && mailboxRootTable != null)
{
mailboxRoot = new Folder(reader, mailboxRootItemDescriptor, mailboxRootTable);
}
}
internal IndexNode(PstFileReader reader, ulong offset, IndexTree tree)
{
Parse(reader, offset, tree);
}