static void Main(string[] args)
{
Console.WriteLine("---------------------------------------------------------");
Console.WriteLine("Preparing nServer...");
// prepare primary endpoint URL
UriBuilder uriBuilder = new UriBuilder("http",
Server.Configurations.Server.Host,
Server.Configurations.Server.Port);
Console.WriteLine(String.Format("Setting up to listen for commands on {0}...", uriBuilder.Uri.ToString()));
// register controllers
Console.WriteLine("Registering all controllers...");
Server.Controllers.ControllerManager.RegisterAllControllers();
// start it up
nServer server = new nServer(uriBuilder.Uri);
nServer.CurrentInstance = server;
server.IncomingRequest += RequestHandler.HandleIncomingRequest;
server.Start();
// ping to test it's alive and ready
Console.WriteLine("Pinging to confirm success...");
uriBuilder.Path = "server/ping";
WebRequest request = WebRequest.Create(uriBuilder.Uri);
WebResponse response = request.GetResponse();
response.Close();
Console.WriteLine("nServer ready to accept requests...");
Console.WriteLine("---------------------------------------------------------");
}
/// <summary>
/// Handles the actual response
/// </summary>
/// <param name="args">the event arguments</param>
/// <param name="response">the response from the action</param>
private static void HandleResponse(nServer.HttpRequestEventArgs args, Response response)
{
HttpListenerResponse httpResponse = args.RequestContext.Response;
httpResponse.StatusCode = (int)response.StatusCode;
httpResponse.StatusDescription = response.StatusDescription;
httpResponse.ContentLength64 = response.MessageStream.Length;
httpResponse.ContentEncoding = Encoding.UTF8;
httpResponse.OutputStream.Write(response.MessageStream, 0, response.MessageStream.Length);
httpResponse.OutputStream.Close();
httpResponse.Close();
}
/// <summary>
/// Handles the incoming request
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public static void HandleIncomingRequest(object sender, nServer.HttpRequestEventArgs e)
{
ApplicationController controller = null;
MethodInfo action = null;
// if the server is accepting commands, invoke the action
string message = null;
if (IsActionAvailable(e, out controller, out action, out message)) {
if (CheckServer(out message)) {
HandleResponse(e, controller.InvokeAction(action));
Logging.LogHelper.LogMessage(
String.Format("Successfullly invoked {0}...",
e.RequestContext.Request.Url.ToString()),
LogLevel.Debug);
} else {
HandleResponse(e, new Response(HttpStatusCode.ServiceUnavailable,
String.Format("Failed to invoke {0}...",
e.RequestContext.Request.Url.ToString()),
message));
LogHelper.LogMessage(
String.Format("Failed to invoke {0} for the following reason: {1}...",
e.RequestContext.Request.Url.ToString(),
message),
LogLevel.Warning);
}
} else {
if (!e.RequestContext.Request.Url.ToString().ToLower().Contains("favicon")) {
HandleResponse(e, new Response(HttpStatusCode.ServiceUnavailable,
String.Format("Failed to invoke {0}...",
e.RequestContext.Request.Url.ToString()),
message));
LogHelper.LogMessage(String.Format("Failed to invoke {0} for the following reason: {1}...",
e.RequestContext.Request.Url.ToString(),
message),
LogLevel.Warning);
}
}
}
/// <summary>
/// Checks to see if the requeste action is available.
/// </summary>
/// <param name="args">the event arguments</param>
/// <param name="controllerToInvoke">controller to invoke</param>
/// <param name="actionToInvoke">action to invoke</param>
/// <param name="message">outbound message</param>
/// <returns></returns>
private static bool IsActionAvailable(nServer.HttpRequestEventArgs args,
out ApplicationController controllerToInvoke,
out MethodInfo actionToInvoke,
out string message)
{
bool isActionAvailable = false;
Uri requestedAction = args.RequestContext.Request.Url;
message = null;
controllerToInvoke = null;
actionToInvoke = null;
string[] requestParts = requestedAction.LocalPath.Split('/');
if (requestParts.Length == 3) {
controllerToInvoke = Controllers.ControllerManager.GetControllerInstance(requestParts[1] + "controller");
if (controllerToInvoke != null) {
controllerToInvoke.Parameters = args.RequestContext.Request.QueryString;
actionToInvoke = Controllers.ControllerManager.GetControllerAction(controllerToInvoke, requestParts[2]);
}
}
if (controllerToInvoke != null && actionToInvoke != null) {
isActionAvailable = true;
} else {
if (controllerToInvoke == null) {
message = "Controller does not exist.";
} else if (actionToInvoke == null) {
message = "Action does not exist.";
}
}
return isActionAvailable;
}
