private async Task AcceptConnections()
{
try
{
#region Start-Listeners
if (_ListenerHostnames != null)
{
foreach (string curr in _ListenerHostnames)
{
string prefix = null;
if (_ListenerSsl)
{
prefix = "https://" + curr + ":" + _ListenerPort + "/";
}
else
{
prefix = "http://" + curr + ":" + _ListenerPort + "/";
}
_HttpListener.Prefixes.Add(prefix);
}
}
else if (_ListenerUris != null)
{
foreach (string curr in _ListenerUris)
{
_HttpListener.Prefixes.Add(curr);
}
}
_HttpListener.Start();
#endregion
#region Listen-and-Process-Requests
while (_HttpListener.IsListening && !_TokenSource.IsCancellationRequested)
{
HttpListenerContext listenerContext = await _HttpListener.GetContextAsync();
HttpContext ctx = null;
Task unawaited = Task.Run(async() =>
{
DateTime startTime = DateTime.Now;
try
{
#region Build-Context
Events.ConnectionReceived?.Invoke(
listenerContext.Request.RemoteEndPoint.Address.ToString(),
listenerContext.Request.RemoteEndPoint.Port);
ctx = new HttpContext(listenerContext, Events);
Events.RequestReceived?.Invoke(
ctx.Request.SourceIp,
ctx.Request.SourcePort,
ctx.Request.Method.ToString(),
ctx.Request.FullUrl);
_Stats.IncrementRequestCounter(ctx.Request.Method);
_Stats.ReceivedPayloadBytes += ctx.Request.ContentLength;
#endregion
#region Check-Access-Control
if (!AccessControl.Permit(ctx.Request.SourceIp))
{
Events.AccessControlDenied?.Invoke(
ctx.Request.SourceIp,
ctx.Request.SourcePort,
ctx.Request.Method.ToString(),
ctx.Request.FullUrl);
listenerContext.Response.Close();
return;
}
#endregion
#region Process-Preflight-Requests
if (ctx.Request.Method == HttpMethod.OPTIONS)
{
if (OptionsRoute != null)
{
await OptionsRoute(ctx);
return;
}
else
{
OptionsProcessor(listenerContext, ctx.Request);
return;
}
}
#endregion
#region Pre-Routing-Handler
bool terminate = false;
if (PreRoutingHandler != null)
{
terminate = await PreRoutingHandler(ctx);
if (terminate)
{
return;
}
}
#endregion
#region Content-Routes
if (ctx.Request.Method == HttpMethod.GET || ctx.Request.Method == HttpMethod.HEAD)
{
if (ContentRoutes.Exists(ctx.Request.RawUrlWithoutQuery))
{
await _ContentRouteProcessor.Process(ctx);
return;
}
}
#endregion
#region Static-Routes
Func <HttpContext, Task> handler = StaticRoutes.Match(ctx.Request.Method, ctx.Request.RawUrlWithoutQuery);
if (handler != null)
{
await handler(ctx);
return;
}
#endregion
#region Dynamic-Routes
handler = DynamicRoutes.Match(ctx.Request.Method, ctx.Request.RawUrlWithoutQuery);
if (handler != null)
{
await handler(ctx);
return;
}
#endregion
#region Default-Route
await _DefaultRoute(ctx);
return;
#endregion
}
catch (Exception eInner)
{
if (ctx == null || ctx.Request == null)
{
Events.ExceptionEncountered?.Invoke(null, 0, eInner);
}
else
{
Events.ExceptionEncountered?.Invoke(ctx.Request.SourceIp, ctx.Request.SourcePort, eInner);
}
}
finally
{
if (ctx != null && ctx.Response != null && ctx.Response.ResponseSent)
{
Events.ResponseSent?.Invoke(
ctx.Request.SourceIp,
ctx.Request.SourcePort,
ctx.Request.Method.ToString(),
ctx.Request.FullUrl,
ctx.Response.StatusCode,
TotalMsFrom(startTime));
_Stats.SentPayloadBytes += ctx.Response.ContentLength;
}
}
}, _Token);
}
#endregion
}
catch (Exception e)
{
Events.ExceptionEncountered?.Invoke(null, 0, e);
}
finally
{
Events.ServerStopped?.Invoke();
}
}
private void AcceptConnections(CancellationToken token)
{
try
{
foreach (string curr in _ListenerHostnames)
{
string prefix = null;
if (_ListenerSsl)
{
prefix = "https://" + curr + ":" + _ListenerPort + "/";
}
else
{
prefix = "http://" + curr + ":" + _ListenerPort + "/";
}
_HttpListener.Prefixes.Add(prefix);
}
_HttpListener.Start();
while (_HttpListener.IsListening)
{
ThreadPool.QueueUserWorkItem((c) =>
{
if (token.IsCancellationRequested)
{
throw new OperationCanceledException();
}
var context = c as HttpListenerContext;
HttpRequest req = null;
try
{
Events.ConnectionReceived(
context.Request.RemoteEndPoint.Address.ToString(),
context.Request.RemoteEndPoint.Port);
// Populate HTTP request object
req = new HttpRequest(context, ReadInputStream);
if (req == null)
{
HttpResponse resp = new HttpResponse(req, 500, null, "text/plain", "Unable to parse HTTP request");
SendResponse(context, req, resp);
return;
}
else
{
Events.RequestReceived(req.SourceIp, req.SourcePort, req.Method.ToString(), req.FullUrl);
}
// Check access control
if (!AccessControl.Permit(req.SourceIp))
{
Events.AccessControlDenied(req.SourceIp, req.SourcePort, req.Method.ToString(), req.FullUrl);
context.Response.Close();
return;
}
// Process OPTIONS request
if (req.Method == HttpMethod.OPTIONS &&
OptionsRoute != null)
{
OptionsProcessor(context, req);
return;
}
// Send to handler
Task.Run(() =>
{
HttpResponse resp = null;
Func <HttpRequest, HttpResponse> handler = null;
#region Pre-Routing-Handler
if (PreRoutingHandler != null)
{
resp = PreRoutingHandler(req);
}
#endregion
#region Content-Routes
if (req.Method == HttpMethod.GET || req.Method == HttpMethod.HEAD)
{
if (ContentRoutes.Exists(req.RawUrlWithoutQuery))
{
resp = _ContentRouteProcessor.Process(req, ReadInputStream);
}
}
#endregion
#region Static-Dynamic-Default-Routes
if (resp == null)
{
handler = StaticRoutes.Match(req.Method, req.RawUrlWithoutQuery);
if (handler != null)
{
resp = handler(req);
}
else
{
handler = DynamicRoutes.Match(req.Method, req.RawUrlWithoutQuery);
if (handler != null)
{
resp = handler(req);
}
else
{
resp = DefaultRouteProcessor(context, req);
}
}
}
#endregion
#region Respond
if (resp == null)
{
resp = new HttpResponse(req, 500, null, "text/plain", "Unable to generate repsonse");
SendResponse(context, req, resp);
return;
}
else
{
Dictionary <string, string> headers = new Dictionary <string, string>();
if (!String.IsNullOrEmpty(resp.ContentType))
{
headers.Add("content-type", resp.ContentType);
}
if (resp.Headers != null && resp.Headers.Count > 0)
{
foreach (KeyValuePair <string, string> curr in resp.Headers)
{
headers = Common.AddToDict(curr.Key, curr.Value, headers);
}
}
SendResponse(context, req, resp);
return;
}
#endregion
});
}
catch (Exception eInner)
{
if (req == null)
{
Events.ExceptionEncountered(null, 0, eInner);
}
else
{
Events.ExceptionEncountered(req.SourceIp, req.SourcePort, eInner);
}
}
}, _HttpListener.GetContext());
}
}
catch (HttpListenerException)
{
Events.ServerStopped();
}
catch (OperationCanceledException)
{
Events.ServerStopped();
}
catch (Exception eOuter)
{
Events.ExceptionEncountered(null, 0, eOuter);
}
}
private void AcceptConnections(CancellationToken token)
{
try
{
#region Start-Listeners
foreach (string curr in _ListenerHostnames)
{
string prefix = null;
if (_ListenerSsl)
{
prefix = "https://" + curr + ":" + _ListenerPort + "/";
}
else
{
prefix = "http://" + curr + ":" + _ListenerPort + "/";
}
_HttpListener.Prefixes.Add(prefix);
}
_HttpListener.Start();
#endregion
while (_HttpListener.IsListening)
{
ThreadPool.QueueUserWorkItem((c) =>
{
if (token.IsCancellationRequested)
{
throw new OperationCanceledException();
}
HttpListenerContext listenerContext = c as HttpListenerContext;
HttpContext ctx = null;
try
{
#region Build-Context-and-Send-Notification
Events.ConnectionReceived(
listenerContext.Request.RemoteEndPoint.Address.ToString(),
listenerContext.Request.RemoteEndPoint.Port);
ctx = new HttpContext(listenerContext, Events);
Events.RequestReceived(
ctx.Request.SourceIp,
ctx.Request.SourcePort,
ctx.Request.Method.ToString(),
ctx.Request.FullUrl);
#endregion
#region Check-Access-Control
if (!AccessControl.Permit(ctx.Request.SourceIp))
{
Events.AccessControlDenied(
ctx.Request.SourceIp,
ctx.Request.SourcePort,
ctx.Request.Method.ToString(),
ctx.Request.FullUrl);
listenerContext.Response.Close();
return;
}
#endregion
#region Process-Preflight-Requests
if (ctx.Request.Method == HttpMethod.OPTIONS &&
OptionsRoute != null)
{
OptionsProcessor(listenerContext, ctx.Request);
return;
}
#endregion
#region Process-Via-Routing
Task.Run(() =>
{
Func <HttpContext, Task> handler = null;
#region Pre-Routing-Handler
if (PreRoutingHandler != null)
{
if (PreRoutingHandler(ctx).Result)
{
return;
}
}
#endregion
#region Content-Routes
if (ctx.Request.Method == HttpMethod.GET || ctx.Request.Method == HttpMethod.HEAD)
{
if (ContentRoutes.Exists(ctx.Request.RawUrlWithoutQuery))
{
_ContentRouteProcessor.Process(ctx).RunSynchronously();
return;
}
}
#endregion
#region Static-Routes
handler = StaticRoutes.Match(ctx.Request.Method, ctx.Request.RawUrlWithoutQuery);
if (handler != null)
{
handler(ctx).RunSynchronously();
return;
}
#endregion
#region Dynamic-Routes
handler = DynamicRoutes.Match(ctx.Request.Method, ctx.Request.RawUrlWithoutQuery);
if (handler != null)
{
handler(ctx).RunSynchronously();
return;
}
#endregion
#region Default-Route
_DefaultRoute(ctx).RunSynchronously();
return;
#endregion
});
#endregion
}
catch (Exception eInner)
{
if (ctx == null || ctx.Request == null)
{
Events.ExceptionEncountered(null, 0, eInner);
}
else
{
Events.ExceptionEncountered(ctx.Request.SourceIp, ctx.Request.SourcePort, eInner);
}
}
}, _HttpListener.GetContext());
}
}
catch (HttpListenerException)
{
Events.ServerStopped();
}
catch (OperationCanceledException)
{
Events.ServerStopped();
}
catch (Exception eOuter)
{
Events.ExceptionEncountered(null, 0, eOuter);
}
}
private void AcceptConnections(CancellationToken token)
{
try
{
foreach (string curr in _ListenerHostnames)
{
string prefix = null;
if (_ListenerSsl)
{
prefix = "https://" + curr + ":" + _ListenerPort + "/";
}
else
{
prefix = "http://" + curr + ":" + _ListenerPort + "/";
}
_HttpListener.Prefixes.Add(prefix);
}
_HttpListener.Start();
while (_HttpListener.IsListening)
{
ThreadPool.QueueUserWorkItem((c) =>
{
if (token.IsCancellationRequested)
{
throw new OperationCanceledException();
}
var context = c as HttpListenerContext;
try
{
#region Populate-Http-Request-Object
HttpRequest req = new HttpRequest(context, ReadInputStream);
if (req == null)
{
HttpResponse resp = new HttpResponse(
req,
500,
null,
"text/plain",
Encoding.UTF8.GetBytes("Unable to parse your HTTP request"));
SendResponse(
context,
req,
resp);
return;
}
#endregion
#region Access-Control
if (!AccessControl.Permit(req.SourceIp))
{
context.Response.Close();
return;
}
#endregion
#region Process-OPTIONS-Request
if (req.Method == HttpMethod.OPTIONS &&
OptionsRoute != null)
{
OptionsProcessor(context, req);
return;
}
#endregion
#region Send-to-Handler
Task.Run(() =>
{
HttpResponse resp = null;
Func <HttpRequest, HttpResponse> handler = null;
#region Find-Route
if (req.Method == HttpMethod.GET ||
req.Method == HttpMethod.HEAD)
{
if (ContentRoutes.Exists(req.RawUrlWithoutQuery))
{
// content route found
resp = _ContentRouteProcessor.Process(req);
}
}
if (resp == null)
{
handler = StaticRoutes.Match(req.Method, req.RawUrlWithoutQuery);
if (handler != null)
{
// static route found
resp = handler(req);
}
else
{
// no static route, check for dynamic route
handler = DynamicRoutes.Match(req.Method, req.RawUrlWithoutQuery);
if (handler != null)
{
// dynamic route found
resp = handler(req);
}
else
{
// process using default route
resp = DefaultRouteProcessor(context, req);
}
}
}
#endregion
#region Return
if (resp == null)
{
resp = new HttpResponse(
req,
500,
null,
"text/plain",
Encoding.UTF8.GetBytes("Unable to generate response"));
SendResponse(
context,
req,
resp);
return;
}
else
{
Dictionary <string, string> headers = new Dictionary <string, string>();
if (!String.IsNullOrEmpty(resp.ContentType))
{
headers.Add("content-type", resp.ContentType);
}
if (resp.Headers != null && resp.Headers.Count > 0)
{
foreach (KeyValuePair <string, string> curr in resp.Headers)
{
headers = WatsonCommon.AddToDict(curr.Key, curr.Value, headers);
}
}
SendResponse(
context,
req,
resp);
return;
}
#endregion
});
#endregion
}
catch (Exception)
{
}
finally
{
}
}, _HttpListener.GetContext());
}
}
catch (Exception)
{
throw;
}
finally
{
}
}
