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);
}
}
