internal object Encode(EngineIOTransportType TransportType, bool ForceBase64, bool ForceBinary = false)
{
if (ForceBase64 && ForceBinary)
{
throw new ArgumentException("ForceBase64 && ForceBinary cannot be true.", "ForceBase64, ForceBinary");
}
try
{
if (IsText || IsBinary)
{
if (TransportType == EngineIOTransportType.polling)
{
if (!ForceBinary && (IsText || ForceBase64))
{
StringBuilder Builder = new StringBuilder();
Builder.Append((int)Type);
Builder.Append(IsText ? Data : Convert.ToBase64String(RawData));
int Length = Builder.Length + (IsText ? 0 : 1);
Builder.Insert(0, string.Format("{0}:" + (IsText ? "" : "b"), Length));
return(Builder.ToString());
}
else
{
List <byte> Buffer = new List <byte>()
{
(byte)(IsText ? 0 : 1)
};
byte[] RawData = IsText ? Encoding.UTF8.GetBytes(Data) : this.RawData;
foreach (char Character in (RawData.Length + 1).ToString())
{
Buffer.Add(byte.Parse(Character.ToString()));
}
Buffer.Add(0xff);
if (IsText)
{
Buffer.Add(Convert.ToByte((char)(Type + 48)));
}
else
{
Buffer.Add((byte)Type);
}
Buffer.AddRange(RawData);
return(Buffer.ToArray());
}
}
else
{
if (!ForceBinary && (IsText || ForceBase64))
{
StringBuilder Builder = new StringBuilder();
Builder.Append((IsText ? "" : "b") + (int)Type);
Builder.Append(IsText ? Data : Convert.ToBase64String(RawData));
return(Builder.ToString());
}
else
{
List <byte> Buffer = new List <byte>()
{
(byte)Type
};
Buffer.AddRange(RawData);
return(Buffer.ToArray());
}
}
}
throw new EngineIOException("Packet encoding failed. " + this);
}
catch (Exception Exception)
{
return(CreateErrorPacket(Exception));
}
}
private EngineIOException Verify(NameValueCollection QueryString, NameValueCollection Headers, EngineIOTransportType ExpectedTransportType)
{
EngineIOException Exception = Exceptions.UNKNOWN_TRANSPORT;
if (EngineIOHttpManager.GetTransport(QueryString).Equals(ExpectedTransportType.ToString()))
{
bool IsPolling = EngineIOHttpManager.IsPolling(QueryString) && Option.Polling;
bool IsWebSocket = EngineIOHttpManager.IsWebSocket(QueryString) && Option.WebSocket;
if (IsPolling || IsWebSocket)
{
if (EngineIOHttpManager.IsValidHeader(EngineIOHttpManager.GetOrigin(Headers)))
{
Exception = null;
}
else
{
Exception = Exceptions.BAD_REQUEST;
}
}
}
return(Exception);
}
public static bool Equals(this EngineIOTransportType TransportType, string TransportName)
{
return(TransportType.ToString().Equals(TransportName?.Trim()?.ToLower() ?? string.Empty));
}
