Inheritance: UdpTrackerMessage
示例#1
0
        public static UdpTrackerMessage DecodeMessage(byte[] buffer, int offset, int count, MessageType type)
        {
            UdpTrackerMessage m;
            var action = type == MessageType.Request ? ReadInt(buffer, offset + 8) : ReadInt(buffer, offset);

            switch (action)
            {
            case 0:
                if (type == MessageType.Request)
                {
                    m = new ConnectMessage();
                }
                else
                {
                    m = new ConnectResponseMessage();
                }
                break;

            case 1:
                if (type == MessageType.Request)
                {
                    m = new AnnounceMessage();
                }
                else
                {
                    m = new AnnounceResponseMessage();
                }
                break;

            case 2:
                if (type == MessageType.Request)
                {
                    m = new ScrapeMessage();
                }
                else
                {
                    m = new ScrapeResponseMessage();
                }
                break;

            case 3:
                m = new ErrorMessage();
                break;

            default:
                throw new ProtocolException(string.Format("Invalid udp message received: {0}", buffer[offset]));
            }

            try
            {
                m.Decode(buffer, offset, count);
            }
            catch
            {
                m = new ErrorMessage(0, "Couldn't decode the tracker response");
            }
            return(m);
        }
        public static UdpTrackerMessage DecodeMessage(byte[] buffer, int offset, int count, MessageType type)
        {
            UdpTrackerMessage m;
            var action = type == MessageType.Request ? ReadInt(buffer, offset + 8) : ReadInt(buffer, offset);
            switch (action)
            {
                case 0:
                    if (type == MessageType.Request)
                        m = new ConnectMessage();
                    else
                        m = new ConnectResponseMessage();
                    break;
                case 1:
                    if (type == MessageType.Request)
                        m = new AnnounceMessage();
                    else
                        m = new AnnounceResponseMessage();
                    break;
                case 2:
                    if (type == MessageType.Request)
                        m = new ScrapeMessage();
                    else
                        m = new ScrapeResponseMessage();
                    break;
                case 3:
                    m = new ErrorMessage();
                    break;
                default:
                    throw new ProtocolException(string.Format("Invalid udp message received: {0}", buffer[offset]));
            }

            try
            {
                m.Decode(buffer, offset, count);
            }
            catch
            {
                m = new ErrorMessage(0, "Couldn't decode the tracker response");
            }
            return m;
        }
示例#3
0
        private async Task DoAnnounceAsync(AnnounceParameters parameter, object state)
        {
            var announceMessage = new AnnounceMessage(DateTime.Now.GetHashCode(), _connectionId, parameter);
            var responseBytes = await SendAndReceiveAsync(announceMessage);

            var msg = Receive(announceMessage, responseBytes);

            if (!(msg is AnnounceResponseMessage))
                throw new Exception(FailureMessage);

            MinUpdateInterval = ((AnnounceResponseMessage) msg).Interval;
            CompleteAnnounce(msg, state);
        }