//Process an incomming request.
private async Task Process(TcpClient tcpClient, ServiceCallback callback)
{
//Print the client connection to the console.
//TODO: Remove this for version 1.
string clientEndPoint = tcpClient.Client.RemoteEndPoint.ToString();
Console.WriteLine("Received connection request from " + clientEndPoint);
try
{
//Create and configure a stream we can use to send and receive data.
NetworkStream networkStream = tcpClient.GetStream();
StreamReader reader = new StreamReader(networkStream);
StreamWriter writer = new StreamWriter(networkStream);
writer.AutoFlush = true;
//Stealing Liberally from https://stackoverflow.com/questions/26058594/how-to-get-all-data-from-networkstream
//If we can read information from the networkStream...read it into a StringBuilder
if (networkStream.CanRead)
{
byte[] readBuffer = new byte[1024];
//Full webrequest.
StringBuilder fullMessage = new StringBuilder();
int numberOfBytesRead = 0;
//Read all data from the stream into fullMessage
do
{
numberOfBytesRead = await networkStream.ReadAsync(readBuffer, 0, readBuffer.Length);
fullMessage.AppendFormat("{0}", Encoding.ASCII.GetString(readBuffer, 0, numberOfBytesRead));
} while (networkStream.DataAvailable);
//Examine the request to see if it is properly formatted.
Tuple <String, String> opRequest = IsProperlyFormatted(fullMessage.ToString());
if (opRequest != null)
{
//Match the sent web request type with our Enum WebRequestType.
WebRequestType operation;
Enum.TryParse <WebRequestType>(opRequest.Item1, out operation);
//Invoke the callback that corresponds to Controller.HttpRequestHandler();
string dataFromController = callback.Invoke(operation, opRequest.Item2);
//Builder to prepare our response.
StringBuilder res = new StringBuilder("HTTP/1.1 200 OK\r\n");
//TODO: restrict cross origin to webserver only.
res.Append("Access-Control-Allow-Origin: *\r\n");
res.Append("Content-Type: text/*\r\n");
res.Append("\r\n");
res.Append(dataFromController);
await writer.WriteLineAsync(res.ToString());
}
}
else
{
Console.WriteLine("Network Stream Unreadable.");
}
tcpClient.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
if (tcpClient.Connected)
{
tcpClient.Close();
}
}
} // Process
