private void Process(HttpListenerContext context)
{
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
string responseString;
if (request.HasEntityBody)
{
using (var reader = new StreamReader(request.InputStream,
request.ContentEncoding))
{
string requestString = reader.ReadToEnd();
Console.WriteLine(requestString);
Requests.CalculationRequest crequest = Newtonsoft.Json.JsonConvert.DeserializeObject <Requests.CalculationRequest>(requestString);
var calc = new Util.Calculator();
responseString = calc.Calculate(crequest).ToString();
}
}
else
{
responseString = "<HTML><BODY> Hello world!</BODY></HTML>";
}
// Obtain a response object.
// Construct a response.
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
// You must close the output stream.
output.Close();
}
public void ListenerCallback(IAsyncResult result)
{
try
{
HttpListener listener = (HttpListener)result.AsyncState;
// Call EndGetContext to complete the asynchronous operation.
HttpListenerContext context = listener.EndGetContext(result);
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
string responseString;
if (request.HasEntityBody)
{
using (var reader = new StreamReader(request.InputStream,
request.ContentEncoding))
{
string requestString = reader.ReadToEnd();
Console.WriteLine(requestString);
Requests.CalculationRequest crequest = Newtonsoft.Json.JsonConvert.DeserializeObject <Requests.CalculationRequest>(requestString);
var calc = new Util.Calculator();
responseString = calc.Calculate(crequest).ToString();
}
}
else
{
responseString = "<HTML><BODY> Hello world!</BODY></HTML>";
}
// Obtain a response object.
// Construct a response.
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
// You must close the output stream.
output.Close();
//listener.Close();
}
catch (Exception ex)
{
return;
}
}
public void Start(string[] args, CancellationToken token)
{
try
{
//data buffer
byte[] bytes = new byte[1024];
//establish the local endpoint for the socket
//dns.GetHostName returns the name of the host running the app
IPHostEntry iPHostEntry = Dns.GetHostEntry(Dns.GetHostName());
IPAddress ipAddress = IPAddress.Parse(args[0]);
IPEndPoint localEndpoint = new IPEndPoint(ipAddress, 8080);
Console.WriteLine($"endpoint: {localEndpoint.ToString()}");
//create the tcp/ip socket
Socket listener = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
_listener = listener as object;
// bind the socket to the local endpoint and listen for incoming connections
try
{
listener.Bind(localEndpoint);
listener.Listen(10);
//start listening for connections
while (token.IsCancellationRequested == false)
{
try
{
Console.WriteLine("Awaiting Connection... ");
Socket handler = listener.Accept();
data = null;
// an incoming connection needs to be processed
int count = 0;
while (true)
{
int bytesRec = handler.Receive(bytes);
data += Encoding.ASCII.GetString(bytes, 0, bytesRec);
if (data.IndexOf("<EOF>") > -1 || count > 5000)
{
break;
}
count++;
}
data = data.Substring(0, data.Length - 5);
Requests.CalculationRequest crequest = Newtonsoft.Json.JsonConvert.DeserializeObject <Requests.CalculationRequest>(data);
var calc = new Util.Calculator();
string responseString = calc.Calculate(crequest).ToString();
//show the data on the console
byte[] msg = Encoding.ASCII.GetBytes(responseString);
handler.Send(msg);
handler.Shutdown(SocketShutdown.Both);
handler.Close();
}
catch (Exception ex)
{
break;
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
Console.WriteLine("\nPress any key to continue... ");
Console.Read();
}
catch (Exception ex)
{
return;
}
}
