public ClientUpdateReply DoClientUpdate(string[] serverAddresses, int serverPort, int clientNumber, int clientPin, int clientPort)
{
if (!ConnectToAnyServer(serverAddresses, serverPort))
{
return(null);
}
ClientUpdateReply reply = SendClientUpdate(clientNumber, clientPin, clientPort);
Disconnect();
return(reply);
}
/// <summary>
/// Update own ip-number
/// </summary>
/// <param name="number"></param>
/// <returns>peer or null</returns>
private ClientUpdateReply SendClientUpdate(int number, int pin, int port)
{
Logging.Instance.Log(LogTypes.Debug, TAG, nameof(SendClientUpdate), $"number='{number}'");
ClientUpdateReply reply = new ClientUpdateReply();
if (client == null)
{
Logging.Instance.Error(TAG, nameof(SendPeerQuery), "no server connection");
reply.Error = "no server connection";
return(reply);
}
byte[] sendData = new byte[2 + 8];
sendData[0] = 0x01; // packet type: client update
sendData[1] = 0x08; // length
byte[] data = BitConverter.GetBytes((UInt32)number);
Buffer.BlockCopy(data, 0, sendData, 2, 4);
data = BitConverter.GetBytes((UInt16)pin);
Buffer.BlockCopy(data, 0, sendData, 6, 2);
data = BitConverter.GetBytes((UInt16)port);
Buffer.BlockCopy(data, 0, sendData, 8, 2);
try
{
stream.Write(sendData, 0, sendData.Length);
}
catch (Exception ex)
{
Logging.Instance.Error(TAG, nameof(SendPeerQuery), $"error sending data to subscribe server", ex);
reply.Error = "reply server error";
return(reply);
}
byte[] recvData = new byte[6];
int recvLen = 0;
try
{
recvLen = stream.Read(recvData, 0, recvData.Length);
}
catch (Exception ex)
{
Logging.Instance.Error(TAG, nameof(SendPeerQuery), $"error receiving data from subscribe server", ex);
reply.Error = "reply server error";
return(reply);
}
if (recvLen != 6)
{
Logging.Instance.Log(LogTypes.Info, TAG, nameof(SendPeerSearch), $"wrong reply packet size ({recvLen})");
reply.Error = "error";
return(reply);
}
if (recvData[0] != 0x02)
{
// peer not found
Logging.Instance.Log(LogTypes.Info, TAG, nameof(SendPeerSearch), $"wrong reply packet, type={recvData[0]:X2}");
reply.Error = "error";
return(reply);
}
reply.Success = true;
reply.IpAddress = $"{recvData[2]}.{recvData[3]}.{recvData[4]}.{recvData[5]}";
reply.Error = "ok";
return(reply);
}
