public void ReadResponse(byte[] datas, long offset, long size, out byte[] rcvData) { serializer.SetBuffer(datas, offset, size); methodId = (ushort)((uint)serializer.ReadUShort() & 0x3FFF); //0x3F (0011 1111) sets left most 2 bits to 00 methodLength = serializer.ReadUShort(); transactionID = serializer.ReadBytes(16); if (!Enum.IsDefined(typeof(STUNMethod), (STUNMethod)methodId) || methodLength != serializer.byteLength - serializer.bytePos) { serializer.SetStartPos(); isIndicateData = IsSTUNMessage = false; serializer.ReverserBuffer((int)offset, 4); ushort appSize = serializer.ReadUShort(); responseChannelNumber = serializer.ReadUShort(); rcvData = new byte[appSize]; Array.Copy(datas, 4, rcvData, 0, appSize); return; } method = (STUNMethod)methodId; isIndicateData = method == STUNMethod.DataIndication; IsSTUNMessage = !isIndicateData; ReadAttribute(out rcvData); }
private List <byte[]> DecryptPackage(byte[] data) { serializer.SetBuffer(data, 0, data.Length); List <byte[]> packages = new List <byte[]>(); while (!serializer.IsEnd()) { int pkgLength = serializer.ReadInt(); packages.Add(serializer.ReadBytes(pkgLength)); } return(packages); }
public void ReadAttribute() { while (serializer.bytePos < serializer.byteLength) { NATPAttribute attrType = (NATPAttribute)serializer.ReadByte(); attributeTypes.Add(attrType); switch (attrType) { case NATPAttribute.RoomAddress: case NATPAttribute.PeerAddress: response.Add(attrType, ReadPeerAddress()); break; case NATPAttribute.User: case NATPAttribute.Passowrd: case NATPAttribute.RoomName: case NATPAttribute.RoomDescription: case NATPAttribute.RoomTag: response.Add(attrType, ReadString()); break; /*case NATPAttribute.Room: * response.Add(attrType, ReadRoom()); * break;*/ default: ushort attrLen = serializer.ReadUShort(); byte[] bytes = serializer.ReadBytes(attrLen); response.Add(attrType, bytes); while (((attrLen++) % 4) != 0) { serializer.ReadByte(); } break; } } }
public void ReadAttribute() { List <IPEndPoint> roomAddressList = new List <IPEndPoint>(); List <string> roomNameList = new List <string>(); List <string> roomDescriptionList = new List <string>(); List <Room> roomList = new List <Room>(); string name = ""; string des = ""; IPEndPoint address = null; int roomFieldCount = 0; while (serializer.bytePos < serializer.byteLength) { SignalingAttribute attrType = (SignalingAttribute)serializer.ReadByte(); attributeTypes.Add(attrType); switch (attrType) { case SignalingAttribute.PeerAddress: response.Add(attrType, ReadPeerAddress()); break; case SignalingAttribute.RoomAddress: //roomAddressList.Add(ReadPeerAddress()); roomFieldCount++; address = ReadPeerAddress(); break; case SignalingAttribute.RoomName: //roomNameList.Add(serializer.ReadString()); name = ReadString(); roomFieldCount++; break; case SignalingAttribute.RoomDescription: //roomDescriptionList.Add(serializer.ReadString()); des = ReadString(); roomFieldCount++; break; case SignalingAttribute.Failed: response.Add(attrType, false); break; case SignalingAttribute.Success: response.Add(attrType, true); break; default: ushort attrLen = serializer.ReadUShort(); byte[] bytes = serializer.ReadBytes(attrLen); response.Add(attrType, bytes); while (((attrLen++) % 4) != 0) { serializer.ReadByte(); } break; } if (roomFieldCount == 3) { roomList.Add(new Room("", address, des, name)); roomFieldCount = 0; } } if (roomList.Count > 0) { response.Add(SignalingAttribute.Room, roomList); } }