/// <summary>
/// Decode segment data to an array of server Pdus
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static RdpegfxPdu[] Decode(byte[] data)
{
RDP_SEGMENTED_DATA segData = new RDP_SEGMENTED_DATA();
bool fResult = PduMarshaler.Unmarshal(data, segData);
if (fResult)
{
if (segData.descriptor == DescriptorTypes.SINGLE)
{
byte[] rawData = Compressor.Decompress(segData.bulkData.data, segData.bulkData.header);;
return(DecodePdus(rawData));
}
else
{
List <byte> dataList = new List <byte>();
byte[] rawData = null;
RDP_DATA_SEGMENT[] dataSegs = segData.segmentArray;
for (int i = 0; i < dataSegs.Length; i++)
{
RDP8_BULK_ENCODED_DATA bulkData = dataSegs[i].bulkData;
rawData = Compressor.Decompress(bulkData.data, bulkData.header);
dataList.AddRange(rawData);
}
if (segData.uncompressedSize == dataList.Count)
{
return(DecodePdus(dataList.ToArray()));
}
}
}
return(null);
}
/// <summary>
/// Decode this PDU from the PduMarshaler.
/// </summary>
/// <param name="marshaler">This is used to decode the fields of this PDU.</param>
public override bool Decode(PduMarshaler marshaler)
{
try
{
this.descriptor = (DescriptorTypes)marshaler.ReadByte();
if (this.descriptor == DescriptorTypes.SINGLE)
{
this.bulkData = new RDP8_BULK_ENCODED_DATA();
this.bulkData.header = marshaler.ReadByte();
this.bulkData.data = marshaler.ReadToEnd();
}
else
{
this.segmentCount = marshaler.ReadUInt16();
this.uncompressedSize = marshaler.ReadUInt32();
if (this.segmentCount > 0)
{
this.segmentArray = new RDP_DATA_SEGMENT[this.segmentCount];
for (int i = 0; i < this.segmentCount; i++)
{
this.segmentArray[i].size = marshaler.ReadUInt32();
if (this.segmentArray[i].size > 0)
{
this.segmentArray[i].bulkData = new RDP8_BULK_ENCODED_DATA();
this.segmentArray[i].bulkData.header = marshaler.ReadByte();
this.segmentArray[i].bulkData.data = marshaler.ReadBytes((int)this.segmentArray[i].size - 1);
}
}
}
}
return true;
}
catch
{
marshaler.Reset();
throw new PDUDecodeException(this.GetType(), marshaler.ReadToEnd());
}
}
