void httpServer_ProcessRequest(System.Net.HttpListenerContext ctx)
{
ActionResult actionResult;
if (ctx.Request.HttpMethod == "POST")
{
var segments = new Uri(ctx.Request.Url.AbsoluteUri).Segments;
if (segments.Length > 1 && segments[segments.Length - 2] == "TWAIN@Web/" && segments[segments.Length - 1] == "ajax")
{
var scanFormModelBinder = new ModelBinder(GetPostData(ctx.Request));
var method = scanFormModelBinder.BindAjaxMethod();
var scanController = new ScanController(_markerAsynchrone);
switch (method)
{
case "GetScannerParameters":
actionResult = scanController.GetScannerParameters(_scannerManager, _cacheSettings, scanFormModelBinder.BindSourceIndex());
break;
case "Scan":
actionResult = scanController.Scan(scanFormModelBinder.BindScanForm(), _scannerManager);
break;
case "RestartWia":
actionResult = scanController.RestartWia();
break;
case "Restart":
actionResult = scanController.Restart();
break;
default:
actionResult = new ActionResult { Content = new byte[0] };
ctx.Response.Redirect("/TWAIN@Web/");
break;
}
}
else
{
actionResult = new ActionResult { Content = new byte[0] };
ctx.Response.Redirect("/TWAIN@Web/");
}
}
else if (ctx.Request.Url.AbsolutePath.Length < 11)
{
actionResult = new ActionResult { Content = new byte[0] };
ctx.Response.Redirect("/TWAIN@Web/");
}
else
{
var contr = new HomeController();
var requestParameter = ctx.Request.Url.AbsolutePath.Substring(11);
if (requestParameter != "download")
{
// /twain@web/ — это 11 символов, а дальше — имя файла
if (requestParameter == "")
requestParameter = "index.html";
actionResult = contr.StaticFile(requestParameter);
}
else
{
var fileParam = new ModelBinder(GetGetData(ctx.Request)).BindDownloadFile();
actionResult = contr.DownloadFile(fileParam);
}
}
if (actionResult.FileNameToDownload != null)
ctx.Response.AddHeader("Content-Disposition", "attachment; filename*=UTF-8''" + Uri.EscapeDataString(Uri.UnescapeDataString(actionResult.FileNameToDownload)));
if (actionResult.ContentType != null)
ctx.Response.ContentType = actionResult.ContentType;
try
{
ctx.Response.OutputStream.Write(actionResult.Content, 0, actionResult.Content.Length);
}
catch (Exception)
{
}
}
private void Worker()
{
WaitHandle[] wait = { _ready, _stop };
while (0 == WaitHandle.WaitAny(wait))
{
HttpListenerContext context;
lock (_queue)
{
if (_queue.Count > 0)
context = _queue.Dequeue();
else
{
_ready.Reset();
continue;
}
}
try { ProcessRequest(context); }
catch (Exception e)
{
try
{
var actionResult = new ActionResult { Content = Encoding.UTF8.GetBytes(e.Message), ContentType = "text/plain" };
if (context.Response.OutputStream.CanWrite)
{
context.Response.OutputStream.Write(actionResult.Content, 0, actionResult.Content.Length);
}
_logger.Error(e.ToString());
}
catch (Exception ex)
{
_logger.Error(ex.ToString());
}
}
try
{
context.Response.OutputStream.Close();
}
catch (Exception e)
{
//_logger.Error(e.ToString());
}
}
}