171 lines
4.9 KiB
C#
171 lines
4.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Net;
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using System.Net.Sockets;
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using System.Threading;
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using ln.http.threads;
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using System.IO;
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using System.Text;
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using ln.http.resources.session;
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namespace ln.http
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{
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public class HTTPServer
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{
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public static int backlog = 5;
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public static int defaultPort = 8080;
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public static bool exclusivePortListener = false;
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public HttpApplication DefaultApplication { get; set; }
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bool shutdown = false;
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Dictionary<IPEndPoint, TcpListener> tcpListeners = new Dictionary<IPEndPoint, TcpListener>();
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Dictionary<Uri, HttpApplication> applications = new Dictionary<Uri, HttpApplication>();
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Pool threadPool = new Pool();
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public SessionCache SessionCache { get; set; }
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public HTTPServer()
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{
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SessionCache = new SessionCache();
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}
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public void AddEndpoint(IPEndPoint endpoint)
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{
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if (this.tcpListeners.ContainsKey(endpoint))
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{
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throw new ArgumentOutOfRangeException(nameof(endpoint), "EndPoint already added");
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}
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this.tcpListeners.Add(endpoint, new TcpListener(endpoint));
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}
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public void RemoveEndpoint(IPEndPoint endpoint)
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{
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if (this.tcpListeners.ContainsKey(endpoint))
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{
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this.tcpListeners[endpoint].Stop();
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this.tcpListeners.Remove(endpoint);
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}
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}
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public void AddApplication(Uri BaseURI,HttpApplication application)
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{
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applications[BaseURI] = application;
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}
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public void Start()
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{
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foreach (TcpListener tcpListener in this.tcpListeners.Values)
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{
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tcpListener.Start(backlog);
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this.threadPool.Enqueue(() => AcceptConnections(tcpListener));
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}
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}
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public void Stop()
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{
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lock (this)
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{
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this.shutdown = true;
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}
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}
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private void AcceptConnections(TcpListener tcpListener)
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{
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while (true)
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{
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lock(this)
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{
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if (this.shutdown) {
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return;
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}
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}
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AcceptConnection(tcpListener);
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}
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}
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private void AcceptConnection(TcpListener tcpListener)
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{
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TcpClient tcpClient = tcpListener.AcceptTcpClient();
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this.threadPool.Enqueue(() => HandleConnection(tcpClient));
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}
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private void HandleConnection(TcpClient tcpClient)
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{
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HttpReader httpReader = new HttpReader(tcpClient.GetStream());
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httpReader.Read();
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HttpRequest httpRequest = new HttpRequest(httpReader, (IPEndPoint)tcpClient.Client.LocalEndPoint);
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HttpResponse response = null;
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httpRequest.ApplySession(SessionCache);
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try
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{
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HttpApplication application = DefaultApplication;
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if (applications.ContainsKey(httpRequest.BaseURI))
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application = applications[httpRequest.BaseURI];
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application.Authenticate(httpRequest);
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application.Authorize(httpRequest);
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response = application.GetResponse( httpRequest );
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} catch (Exception e)
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{
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response = new HttpResponse(httpRequest,"text/plain");
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response.StatusCode = 500;
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response.ContentWriter.WriteLine("Exception caught: {0}",e);
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}
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if (!response.HasCustomContentStream)
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{
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response.ContentWriter.Flush();
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MemoryStream cstream = (MemoryStream)response.ContentStream;
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cstream.Position = 0;
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response.SetHeader("content-length", cstream.Length.ToString());
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}
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if (SessionCache != null)
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{
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SessionCache.ApplySessionID(response,httpRequest.Session);
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}
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response.AddCookie("LN_SEEN", DateTime.Now.ToString());
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StreamWriter streamWriter = new StreamWriter(tcpClient.GetStream());
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streamWriter.WriteLine("{0} {1} {2}", httpRequest.Protocol,response.StatusCode, response.StatusMessage);
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foreach (String headerName in response.GetHeaderNames())
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{
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streamWriter.WriteLine("{0}: {1}", headerName, response.GetHeader(headerName));
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}
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foreach (HttpCookie httpCookie in response.Cookies)
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{
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streamWriter.WriteLine("Set-Cookie: {0}",httpCookie.ToString());
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}
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streamWriter.WriteLine();
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streamWriter.Flush();
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response.ContentStream.CopyTo(tcpClient.GetStream());
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response.ContentStream.Close();
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response.ContentStream.Dispose();
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tcpClient.Close();
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}
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}
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}
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