/// <summary>
/// Parse a value
/// </summary>
/// <param name="data">Bytes array</param>
/// <param name="offset">Zero-indexed offset.</param>
/// <param name="size">Output the number of bytes parsed</param>
/// <param name="connection">DistributedConnection is required in case a structure in the array holds items at the other end.</param>
/// <param name="dataType">DataType, in case the data is not prepended with DataType</param>
/// <returns>Value</returns>
public static (uint, AsyncReply) Parse(byte[] data, uint offset, DistributedConnection connection, uint[] requestSequence, TransmissionType?dataType = null)
{
uint len = 0;
if (dataType == null)
{
(var longLen, dataType) = TransmissionType.Parse(data, offset, (uint)data.Length);
len = (uint)longLen;
offset = dataType.Value.Offset;
}
else
{
len = (uint)dataType.Value.ContentLength;
}
var tt = dataType.Value;
if (tt.Class == TransmissionTypeClass.Fixed)
{
return(len, FixedParsers[tt.Exponent][tt.Index](data, dataType.Value.Offset, (uint)tt.ContentLength, connection, requestSequence));
public override long Parse(byte[] data, uint offset, uint ends)
{
originalOffset = offset;
if (NotEnough(offset, ends, 1))
{
return(-dataLengthNeeded);
}
PreviousCommand = Command;
Command = (IIPPacketCommand)(data[offset] >> 6);
if (Command == IIPPacketCommand.Event)
{
Event = (IIPPacketEvent)(data[offset++] & 0x3f);
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Command == IIPPacketCommand.Report)
{
Report = (IIPPacketReport)(data[offset++] & 0x3f);
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
CallbackId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else
{
PreviousAction = Action;
Action = (IIPPacketAction)(data[offset++] & 0x3f);
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
CallbackId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
if (Command == IIPPacketCommand.Event)
{
if (Event == IIPPacketEvent.ResourceReassigned)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
NewResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Event == IIPPacketEvent.ResourceDestroyed)
{
// nothing to parse
}
else if (Event == IIPPacketEvent.ChildAdded ||
Event == IIPPacketEvent.ChildRemoved)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ChildId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Event == IIPPacketEvent.Renamed)
{
if (NotEnough(offset, ends, 2))
{
return(-dataLengthNeeded);
}
var cl = data.GetUInt16(offset, Endian.Little);
offset += 2;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
ResourceName = data.GetString(offset, cl);
//Content = data.Clip(offset, cl);
offset += cl;
}
else if (Event == IIPPacketEvent.PropertyUpdated ||
Event == IIPPacketEvent.EventOccurred)
{
if (NotEnough(offset, ends, 2))
{
return(-dataLengthNeeded);
}
MethodIndex = data[offset++];
(var size, DataType) = TransmissionType.Parse(data, offset, ends);
//var dt = (DataType)data[offset++];
//var size = dt.Size();// Codec.SizeOf(dt);
if (DataType == null)
{
return(-(int)size);
}
//Content = data.Clip(DataType.Value.Offset, (uint)DataType.Value.ContentLength);
offset += (uint)size;
}
//else if (Event == IIPPacketEvent.EventOccurred)
//{
// if (NotEnough(offset, ends, 5))
// return -dataLengthNeeded;
// MethodIndex = data[offset++];
// var cl = data.GetUInt32(offset);
// offset += 4;
// if (NotEnough(offset, ends, cl))
// return -dataLengthNeeded;
// Content = data.Clip(offset, cl);
// offset += cl;
//}
// Attribute
else if (Event == IIPPacketEvent.AttributesUpdated)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
var cl = data.GetUInt32(offset, Endian.Little);
offset += 4;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
//@TODO: Fix this
//Content = data.Clip(offset, cl);
offset += cl;
}
}
else if (Command == IIPPacketCommand.Request)
{
if (Action == IIPPacketAction.AttachResource)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.ReattachResource)
{
if (NotEnough(offset, ends, 12))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
ResourceAge = data.GetUInt64(offset, Endian.Little);
offset += 8;
}
else if (Action == IIPPacketAction.DetachResource)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.CreateResource)
{
if (NotEnough(offset, ends, 12))
{
return(-dataLengthNeeded);
}
StoreId = data.GetUInt32(offset, Endian.Little);
offset += 4;
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
var cl = data.GetUInt32(offset, Endian.Little);
offset += 4;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
// @TODO: fix this
//this.Content = data.Clip(offset, cl);
}
else if (Action == IIPPacketAction.DeleteResource)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.AddChild ||
Action == IIPPacketAction.RemoveChild)
{
if (NotEnough(offset, ends, 8))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
ChildId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.RenameResource)
{
if (NotEnough(offset, ends, 6))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
var cl = data.GetUInt16(offset, Endian.Little);
offset += 2;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
ResourceName = data.GetString(offset, cl);
//Content = data.Clip(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.TemplateFromClassName)
{
if (NotEnough(offset, ends, 1))
{
return(-dataLengthNeeded);
}
var cl = data[offset++];
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
ClassName = data.GetString(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.TemplateFromClassId)
{
if (NotEnough(offset, ends, 16))
{
return(-dataLengthNeeded);
}
ClassId = data.GetGuid(offset);
offset += 16;
}
else if (Action == IIPPacketAction.TemplateFromResourceId)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.QueryLink ||
Action == IIPPacketAction.LinkTemplates)
{
if (NotEnough(offset, ends, 2))
{
return(-dataLengthNeeded);
}
var cl = data.GetUInt16(offset, Endian.Little);
offset += 2;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
ResourceLink = data.GetString(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.ResourceChildren ||
Action == IIPPacketAction.ResourceParents)
{
if (NotEnough(offset, ends, 4))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.ResourceHistory)
{
if (NotEnough(offset, ends, 20))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
FromDate = data.GetDateTime(offset, Endian.Little);
offset += 8;
ToDate = data.GetDateTime(offset, Endian.Little);
offset += 8;
}
else if (Action == IIPPacketAction.InvokeFunction)
{
if (NotEnough(offset, ends, 6))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
MethodIndex = data[offset++];
(var size, DataType) = TransmissionType.Parse(data, offset, ends);
if (DataType == null)
{
return(-(int)size);
}
offset += (uint)size;
//var cl = data.GetUInt32(offset);
//offset += 4;
//if (NotEnough(offset, ends, cl))
// return -dataLengthNeeded;
//Content = data.Clip(offset, cl);
//offset += cl;
}
else if (Action == IIPPacketAction.Listen ||
Action == IIPPacketAction.Unlisten)// .GetProperty)
{
if (NotEnough(offset, ends, 5))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
MethodIndex = data[offset++];
}
//else if (Action == IIPPacketAction.GetPropertyIfModified)
//{
// if (NotEnough(offset, ends, 9))
// return -dataLengthNeeded;
// ResourceId = data.GetUInt32(offset);
// offset += 4;
// MethodIndex = data[offset++];
// ResourceAge = data.GetUInt64(offset);
// offset += 8;
//}
else if (Action == IIPPacketAction.SetProperty)
{
if (NotEnough(offset, ends, 6))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
MethodIndex = data[offset++];
(var size, DataType) = TransmissionType.Parse(data, offset, ends);
if (DataType == null)
{
return(-(int)size);
}
//Content = data.Clip(DataType.Value.Offset, (uint)DataType.Value.ContentLength);
offset += (uint)size;
}
// Attributes
else if (Action == IIPPacketAction.UpdateAllAttributes ||
Action == IIPPacketAction.GetAttributes ||
Action == IIPPacketAction.UpdateAttributes ||
Action == IIPPacketAction.ClearAttributes)
{
if (NotEnough(offset, ends, 8))
{
return(-dataLengthNeeded);
}
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
var cl = data.GetUInt32(offset, Endian.Little);
offset += 4;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
// @TODO: fix this
//Content = data.Clip(offset, cl);
offset += cl;
}
}
else if (Command == IIPPacketCommand.Reply)
{
if (Action == IIPPacketAction.AttachResource ||
Action == IIPPacketAction.ReattachResource)
{
if (NotEnough(offset, ends, 26))
{
return(-dataLengthNeeded);
}
ClassId = data.GetGuid(offset);
offset += 16;
ResourceAge = data.GetUInt64(offset, Endian.Little);
offset += 8;
uint cl = data.GetUInt16(offset, Endian.Little);
offset += 2;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
ResourceLink = data.GetString(offset, cl);
offset += cl;
//if (NotEnough(offset, ends, 4))
// return -dataLengthNeeded;
(var size, DataType) = TransmissionType.Parse(data, offset, ends);
if (DataType == null)
{
return(-(int)size);
}
offset += (uint)size;
//Content = data.Clip(DataType.Value.Offset, (uint)DataType.Value.ContentLength);
}
else if (Action == IIPPacketAction.DetachResource)
{
// nothing to do
}
else if (Action == IIPPacketAction.CreateResource)
{
if (NotEnough(offset, ends, 20))
{
return(-dataLengthNeeded);
}
//ClassId = data.GetGuid(offset);
//offset += 16;
ResourceId = data.GetUInt32(offset, Endian.Little);
offset += 4;
}
else if (Action == IIPPacketAction.DetachResource)
{
// nothing to do
}
// Inquire
else if (Action == IIPPacketAction.TemplateFromClassName ||
Action == IIPPacketAction.TemplateFromClassId ||
Action == IIPPacketAction.TemplateFromResourceId ||
Action == IIPPacketAction.QueryLink ||
Action == IIPPacketAction.ResourceChildren ||
Action == IIPPacketAction.ResourceParents ||
Action == IIPPacketAction.ResourceHistory ||
Action == IIPPacketAction.LinkTemplates
// Attribute
|| Action == IIPPacketAction.GetAllAttributes ||
Action == IIPPacketAction.GetAttributes)
{
if (NotEnough(offset, ends, 1))
{
return(-dataLengthNeeded);
}
(var size, DataType) = TransmissionType.Parse(data, offset, ends);
if (DataType == null)
{
return(-(int)size);
}
offset += (uint)size;
//var cl = data.GetUInt32(offset);
//offset += 4;
//if (NotEnough(offset, ends, cl))
// return -dataLengthNeeded;
//Content = data.Clip(offset, cl);
//offset += cl;
}
else if (Action == IIPPacketAction.InvokeFunction)
//|| Action == IIPPacketAction.GetProperty
//|| Action == IIPPacketAction.GetPropertyIfModified)
{
if (NotEnough(offset, ends, 1))
{
return(-dataLengthNeeded);
}
(var size, DataType) = TransmissionType.Parse(data, offset, ends);
if (DataType == null)
{
return(-(int)size);
}
offset += (uint)size;
//Content = data.Clip(DataType.Value.Offset, (uint)DataType.Value.ContentLength);
}
else if (Action == IIPPacketAction.SetProperty ||
Action == IIPPacketAction.Listen ||
Action == IIPPacketAction.Unlisten)
{
// nothing to do
}
}
else if (Command == IIPPacketCommand.Report)
{
if (Report == IIPPacketReport.ManagementError)
{
if (NotEnough(offset, ends, 2))
{
return(-dataLengthNeeded);
}
ErrorCode = data.GetUInt16(offset, Endian.Little);
offset += 2;
}
else if (Report == IIPPacketReport.ExecutionError)
{
if (NotEnough(offset, ends, 2))
{
return(-dataLengthNeeded);
}
ErrorCode = data.GetUInt16(offset, Endian.Little);
offset += 2;
if (NotEnough(offset, ends, 2))
{
return(-dataLengthNeeded);
}
var cl = data.GetUInt16(offset, Endian.Little);
offset += 2;
if (NotEnough(offset, ends, cl))
{
return(-dataLengthNeeded);
}
ErrorMessage = data.GetString(offset, cl);
offset += cl;
}
else if (Report == IIPPacketReport.ProgressReport)
{
if (NotEnough(offset, ends, 8))
{
return(-dataLengthNeeded);
}
ProgressValue = data.GetInt32(offset, Endian.Little);
offset += 4;
ProgressMax = data.GetInt32(offset, Endian.Little);
offset += 4;
}
else if (Report == IIPPacketReport.ChunkStream)
{
if (NotEnough(offset, ends, 1))
{
return(-dataLengthNeeded);
}
(var size, DataType) = TransmissionType.Parse(Data, offset, ends);
if (DataType == null)
{
return(-(int)size);
}
offset += (uint)size;
//Content = data.Clip(DataType.Value.Offset, (uint)DataType.Value.ContentLength);
}
}
return(offset - originalOffset);
}
