public static int CalculateSizeOfbfObject(BinaryFormatterRootObject inBinaryFormatterRootObject)
{
int size = 17; // fized header size
foreach (BinaryFormatterObject bfObj in inBinaryFormatterRootObject.binaryFormatterObjects)
{
if (bfObj.typeBytes != null)
{
size += bfObj.typeBytes.Length;
}
if (bfObj.valueBytes != null)
{
size += bfObj.valueBytes.Length;
}
}
return(size);
}
public static MemoryStream ReconstructFromBinaryFormatterObject(BinaryFormatterRootObject inBinaryFormatterRootObject)
{
int fullsize = CalculateSizeOfbfObject(inBinaryFormatterRootObject);
MemoryStream ms = new MemoryStream(fullsize);
ms.Write(inBinaryFormatterRootObject.headerBytes, 0, inBinaryFormatterRootObject.headerBytes.Length);
foreach (BinaryFormatterObject bfObj in inBinaryFormatterRootObject.binaryFormatterObjects)
{
if (bfObj.typeBytes != null)
{
ms.Write(bfObj.typeBytes, 0, bfObj.typeBytes.Length);
}
if (bfObj.valueBytes != null)
{
ms.Write(bfObj.valueBytes, 0, bfObj.valueBytes.Length);
}
}
return(ms);
}
public static String JsonNetBinaryFormatterObjectSerializer(BinaryFormatterRootObject inBinaryFormatterRootObject)
{
return(Newtonsoft.Json.JsonConvert.SerializeObject(inBinaryFormatterRootObject, typeof(Helpers.ModifiedVulnerableBinaryFormatters.BinaryFormatterRootObject), null));
}
public static MemoryStream ReconstructFromJsonNetSerializedBinaryFormatterObject(String jsonNet_str)
{
BinaryFormatterRootObject deserialized_obj = (BinaryFormatterRootObject)Newtonsoft.Json.JsonConvert.DeserializeObject(jsonNet_str, typeof(BinaryFormatterRootObject));
return(ReconstructFromBinaryFormatterObject(deserialized_obj));
}
