public void Start()
{
TcpListener listener = new TcpListener(Address, Port);
Console.WriteLine("Listening for HTTP on port {0}", Port);
listener.Start();
while (true)
{
try
{
using (var client = listener.AcceptTcpClient())
{
//some browsers like to hold onto the connection, so set a 1s timeout for sending and receiving
client.ReceiveTimeout = 15000;
client.SendTimeout = 15000;
//A using statement should automatically flush when it goes out of scope
using (BufferedStream stream = new BufferedStream(client.GetStream()))
{
while (true)
{
BinaryReader reader = new BinaryReader(stream);
//8K header limit seems to be the norm for most real web servers
//https://www.tutorialspoint.com/What-is-the-maximum-size-of-HTTP-header-values
byte[] buffer = new byte[8192];
int bytesRead = reader.Read(buffer, 0, buffer.Length);
string requestHeaderString = Encoding.UTF8.GetString(buffer, 0, bytesRead);
RequestHeader request = RequestHeader.FromString(requestHeaderString);
if (request.Method != RequestMethod.Unknown)
{
Console.WriteLine("Client {0} requests {1}", client.Client.RemoteEndPoint, request);
Response response = new Response();
IRouteHandler handler = null;
try
{
handler = RouteHandlerFactory.ConstructRouteHandler(request);
handler.HandleRoute(request, response);
}
catch (Exception ex)
{
//error constructing resonse
response.Header.ResponseCode = 500;
response.SetBody(File.ReadAllText(Constants.ERROR_500));
Console.WriteLine("error responding to client: {0}", ex.Message);
}
response.FlushToStream(client.GetStream());
}
}
}
}
}
catch (Exception ex)
{
Console.WriteLine("error responding to client: {0}", ex.Message);
}
}
}