public BTPage(byte[] pageData, BREF _ref, PSTFile pst)
{
this._ref = _ref;
this.InternalChildren = new List <BTPage>();
this._trailer = new PageTrailer(pageData.RangeSubset(496, 16));
this._numEntries = pageData[488];
this._maxEntries = pageData[489];
this._cbEnt = pageData[490];
this._cLevel = pageData[491];
this.Entries = new List <BTPAGEENTRY>();
for (var i = 0; i < this._numEntries; i++)
{
var curEntryBytes = pageData.RangeSubset(i * this._cbEnt, this._cbEnt);
if (this._cLevel == 0)
{
if (this._trailer.PageType == PageType.NBT)
{
this.Entries.Add(new NBTENTRY(curEntryBytes));
}
else
{
var curEntry = new BBTENTRY(curEntryBytes);
this.Entries.Add(curEntry);
}
}
else
{
//btentries
var entry = new BTENTRY(curEntryBytes);
this.Entries.Add(entry);
using (var view = pst.PSTMMF.CreateViewAccessor((long)entry.BREF.IB, 512))
{
var bytes = new byte[512];
view.ReadArray(0, bytes, 0, 512);
this.InternalChildren.Add(new BTPage(bytes, entry.BREF, pst));
}
}
}
}
private static Dictionary <ulong, NodeDataDTO> GetSubNodeData(BBTENTRY entry, PSTFile pst, int take = int.MaxValue)
{
var allData = GetBBTEntryData(entry, pst);
var dataBlock = allData[0];
if (entry.Internal)
{
var type = dataBlock.Data[0];
var cLevel = dataBlock.Data[1];
if (cLevel == 0) //SLBlock, no intermediate
{
return(GetSLBlockData(new SLBLOCK(dataBlock), pst, take));
}
else //SIBlock
{
return(GetSIBlockData(new SIBLOCK(dataBlock), pst));
}
}
else
{
throw new Exception("Whoops");
}
}
//for a given bbt entry, retrieve the raw bytes associated with the BID
//this includes retrieving data trees via xblocks
public static List <BlockDataDTO> GetBBTEntryData(BBTENTRY entry, PSTFile pst)
{
if (entry == null)
{
throw new InvalidDataException("Failed while parsing BBTEntry, the data block was invalid, try running a PST repair");
}
var dataSize = entry.BlockByteCount;
var blockSize = entry.BlockByteCount + 16;
if (blockSize % 64 != 0)
{
blockSize += 64 - (blockSize % 64);
}
List <BlockDataDTO> dataBlocks;
/*if (isSubNode)
* {
* using (var viewer = PSTFile.PSTMMF.CreateViewAccessor((long)entry.BREF.IB, blockSize))
* {
* var blockBytes = new byte[dataSize];
* viewer.ReadArray(0, blockBytes, 0, dataSize);
* dataBlocks = new List<BlockDataDTO>
* {new BlockDataDTO {Data = blockBytes, PstOffset = entry.BREF.IB, BBTEntry = entry}};
* return dataBlocks;
* }
* } else */
if (entry.Internal)
{
using (var viewer = pst.PSTMMF.CreateViewAccessor((long)entry.BREF.IB, blockSize))
{
var blockBytes = new byte[dataSize];
viewer.ReadArray(0, blockBytes, 0, dataSize);
var trailerBytes = new byte[16];
viewer.ReadArray(blockSize - 16, trailerBytes, 0, 16);
var trailer = new BlockTrailer(trailerBytes, 0);
var dataBlockDTO = new BlockDataDTO
{
Data = blockBytes,
PstOffset = entry.BREF.IB,
CRCOffset = (uint)((long)entry.BREF.IB + (blockSize - 12)),
BBTEntry = entry
};
var type = blockBytes[0];
var level = blockBytes[1];
if (type == 2) //si or sl entry
{
return(new List <BlockDataDTO> {
dataBlockDTO
});
}
else if (type == 1)
{
if (blockBytes[1] == 0x01) //XBLOCK
{
var xblock = new XBLOCK(dataBlockDTO);
return(BlockBO.GetXBlockData(xblock, pst));
}
else //XXBLOCK
{
var xxblock = new XXBLOCK(dataBlockDTO);
return(BlockBO.GetXXBlockData(xxblock, pst));
}
}
else
{
throw new NotImplementedException();
}
}
}
else
{
using (var viewer = pst.PSTMMF.CreateViewAccessor((long)entry.BREF.IB, blockSize))
{
var dataBytes = new byte[dataSize];
viewer.ReadArray(0, dataBytes, 0, dataSize);
var trailerBytes = new byte[16];
viewer.ReadArray(blockSize - 16, trailerBytes, 0, 16);
var trailer = new BlockTrailer(trailerBytes, 0);
dataBlocks = new List <BlockDataDTO>
{
new BlockDataDTO
{
Data = dataBytes,
PstOffset = entry.BREF.IB,
CRC32 = trailer.CRC,
CRCOffset = (uint)(blockSize - 12),
BBTEntry = entry
}
};
}
}
for (int i = 0; i < dataBlocks.Count; i++)
{
var temp = dataBlocks[i].Data;
DatatEncoder.CryptPermute(temp, temp.Length, false, pst);
}
return(dataBlocks);
}
