public static bool CheckParams(string hostname, string port, byte[] buffer, string timeout, byte operation)
{
//check other parameters
string information;
bool valid = false;
if (!ushort.TryParse(port, out ushort portResult))
{
information = "Port must be a combination of four numbers.";
}
//give the user a max timeout instead of saying it should be less than the allowed size of an int (4,000,000,000)
else if (!int.TryParse(timeout, out int timeoutResult) || timeoutResult < 1000 || timeoutResult > 60000)
{
information = "Timeout must be greater than 1000 and less than 60000 and numbers only.";
}
else if (buffer.Length >= GlobalConstants.MAX_REQUEST_SIZE)
{
information = "Maximum request length has been exceeded";
}
//using ports 4544 and 4545
else if ((hostname == "codingchallenge.identityone.net") && ((portResult == 4544) || (portResult == 4545)))
{
//update status box
information = (operation == GlobalConstants.ENCODE_OP)?
"Requesting to Encode " + buffer.Length + " byte(s) of data." :
"Requesting to Decode " + buffer.Length + " byte(s) of data.";
valid = true;
}
else
{
information = "Check the server name and port.";
}
//if input contains error, update status and return; otherwise continue to check other parameters
if (!valid)
{
thisCode = new OutputCode(DateTime.UtcNow.ToString("HH:mm:ss.ffff"), "Error", information);
return(false);
}
else
{
thisCode = new OutputCode(DateTime.UtcNow.ToString("HH:mm:ss.ffff"), "Information", information);
}
return(true);
}
private async void SendDataToServer(string ipOrHostname, ushort port, byte[] payload, int timeout, byte operation)
{
//set up client to connect to server; pass in timeout value in milliseconds
sr.SetProperties(ipOrHostname, port, payload, timeout);
//create the request structure before connecting to server so that data is ready
//myConnect() should only worry about connecting to the server and reading/writing data
sr.CreateRequest(operation);
//use task to connect to server so that program doesn't halt
await Task.Run(() => sr.MyConnect()).ContinueWith(task =>
{
//if data was read (whether there was error or not) pass this data on to be parsed
//if data was read with no error, new data will be returned as newBuffer
//if there was an error, the original buffer will be retained
resp = new Response(sr.totalDataReceived);
//update status box depending on status code received from response
lstStatus.Items.Insert(0, OutputCode.StatusOutput((Codes)Enum.Parse(typeof(Codes), resp.GetStatus().ToString())));
//if there was no error increment cycle and update the buffer
if ((Codes)Enum.Parse(typeof(Codes), resp.GetStatus().ToString()) == Codes.Zero)
{
//update cycle count
if (operation == GlobalConstants.ENCODE_OP)
{
sr.IncrementEncodes();
lblEncodeCycleCount.Content = sr.numOfEncodes;
}
else
{
sr.DecrementEncodes();
lblEncodeCycleCount.Content = sr.numOfEncodes;
}
newBuffer = resp.GetData();
buffer = newBuffer;
newBuffer = null;
}
//reenable the UI after process finishes
this.IsEnabled = true;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
