protected override void HandleRequest(HttpListenerContext context)
{
var path = context.Request.Url.AbsolutePath;
var parts = path.Split('/');
if (parts.Length == 1)
{
context.Ok();
return;
}
switch (parts[1])
{
case ("favicon.ico"):
context.Ok();
break;
case ("Shutdown"):
context.Ok();
Shutdown();
break;
case ("Produce"):
HandleProduceRequest(parts, context);
break;
default:
context.Error("Route does not exist");
break;
}
}
private static bool HandleArticleRequest(HttpListenerContext client, int categoryIndex)
{
ThreadPool.QueueUserWorkItem(delegate
{
var r = client.Request;
var segments = r.Url.Segments;
if (r.HttpMethod == "GET")
{
if (segments.Length == 2)
{
GetSummary(client, categoryIndex);
}
else if (r.QueryString["comments"] != null)
{
GetComments(client, categoryIndex);
}
else
{
GetArticle(client, categoryIndex);
}
}
else if (r.HttpMethod == "POST")
{
AddComment(client, categoryIndex);
}
else
{
client.Error(HttpStatusCode.BadRequest);
}
});
return(true);
}
public void Execute(HttpListenerContext context)
{
var request = context.Request;
var rawUrl = request.RawUrl.Contains("?") ? request.RawUrl.Split("?".ToCharArray())[0] : request.RawUrl;
if (dictionary.ContainsKey(rawUrl))
{
try
{
var method = dictionary[rawUrl];
var firstParams = method.GetParameters().FirstOrDefault();
if (firstParams.ParameterType == typeof(HttpListenerContext))
{
var callback = new ExecuteContextCallback(ExecuteContextAsync);
var beginInvoke = callback.BeginInvoke(method, context, this, null, null);
callback.EndInvoke(beginInvoke);
}
else if (typeof(HttpParam).IsAssignableFrom(firstParams.ParameterType))
{
var Configuration = AutofacUnitwork.Instance.GetServer <FastControllerConfiguration>();
if (Configuration.Methods.Any(item => item.Equals(request.HttpMethod, StringComparison.InvariantCultureIgnoreCase)))
{
var paramContext = Activator.CreateInstance(firstParams.ParameterType, new object[] {
context
}) as HttpParam;
var callback = new ExecuteHttpCallback(ExecuteHttpAsync);
var beginInvoke = callback.BeginInvoke(method, paramContext, this, null, null);
callback.EndInvoke(beginInvoke);
}
}
else
{
context.Error("Not impl param");
}
}
catch (Exception ex)
{
context.Error(ex.InnerException.Message);
}
}
}
private static bool ValidateProduceRequest(string[] parts, HttpListenerContext context)
{
if (parts.Length != 4)
{
context.Error("format is /Produce/{exchangeName}/{count}");
return(false);
}
return(true);
}
private static bool ValidateConsumeRequest(string[] parts, HttpListenerContext context)
{
if (parts.Length != 3)
{
context.Error("No exchange specified");
return(false);
}
return(true);
}
private static bool RedirectClient(HttpListenerContext context)
{
ThreadPool.QueueUserWorkItem(delegate
{
var url = context.Request.Url.Segments;
if (url.Length < 3)
{
context.Error(HttpStatusCode.BadRequest);
return;
}
var key = context.Request.Url.Segments[2];
if (!Urls.ContainsKey(key))
{
context.Error(HttpStatusCode.BadRequest);
return;
}
context.SetHeader("Location", Urls[key]);
context.Response.StatusCode = (int)HttpStatusCode.Found;
context.Response.Close();
});
return(true);
}
private void HandleConsumeStop(string[] parts, HttpListenerContext context)
{
if (!ValidateConsumeRequest(parts, context))
{
return;
}
var exchange = parts[2];
Consumer consumer;
if (_consumers.TryGetValue(exchange, out consumer))
{
consumer.Dispose();
_consumers.Remove(exchange);
context.Ok();
return;
}
context.Error($"No consumer for exchange {exchange} was found");
}
public void Start(int port)
{
var httpListener = new HttpListener();
httpListener.Prefixes.Add($"http://+:{port}/");
httpListener.Start();
while (_process)
{
HttpListenerContext context = null;
try
{
context = httpListener.GetContext();
HandleRequest(context);
}
catch (Exception e)
{
context?.Error(e.Message);
}
}
HandleShutdown();
}
#pragma warning restore 0649
private static void AddComment(HttpListenerContext client, int categoryIndex)
{
var r = client.Request;
string name = null, email = null, text = null;
int replyTo = -1;
var buf = new byte[r.ContentLength64];
var query = Encoding.UTF8.GetString(buf, 0, r.InputStream.Read(buf, 0, buf.Length));
var param = query.Split('&');
foreach (var p in param)
{
var segments = p.Split(new[] { '=' }, 2);
if (segments.Length < 2)
{
client.Error(HttpStatusCode.BadRequest);
return;
}
var value = Uri.UnescapeDataString(segments[1]).Replace('+', ' ');
if (segments[0] == "name")
{
name = value;
}
else if (segments[0] == "email")
{
email = value;
}
else if (segments[0] == "comment")
{
text = value;
}
else if (segments[0] == "replyTo")
{
replyTo = int.Parse(segments[1]);
}
}
if (name == null || text == null)
{
client.Error(HttpStatusCode.BadRequest);
return;
}
var article = articles[categoryIndex][r.Url.Segments[2]];
var comment = new Comment(name, text, article.CommentCount, replyTo);
if (!Validate(comment, article))
{
client.Error(HttpStatusCode.BadRequest);
return;
}
article.AddComment(comment);
if (client.Request.Url.Query.Contains("returnSelf"))
{
client.WriteAndClose(GenerateCommentHtml(comment, ""), "html", HttpStatusCode.Created);
}
else
{
// This should prevent accidently submitting a form multiple times
client.SetHeader("Location", client.Request.Url);
client.Close(HttpStatusCode.SeeOther);
}
}
#pragma warning restore 0649
private static void GetArticle(HttpListenerContext client, int categoryIndex)
{
var req = client.Request;
var url = req.Url.Segments;
if (url.Length < 3)
{
client.Error(HttpStatusCode.BadRequest);
return;
}
if (url[url.Length - 1].Contains("."))
{
client.GetFile();
return;
}
if (!articles[categoryIndex].ContainsKey(url[2]))
{
client.Error(HttpStatusCode.NotFound);
return;
}
var article = articles[categoryIndex][url[2]];
var path = ChickenSoup.RootFolder + article.Path;
if (File.Exists(path))
{
var content = File.ReadAllText(path);
var comments = article.GetComments();
var tree = new CommentTree();
foreach (var comment in comments)
{
if (!tree.Add(comment))
{
throw new FormatException($"Comment file of {article.Name} has an invalid comment: {comment}");
}
}
var response = ArticleTemplate.Replace("{title}", article.Title)
.Replace("{time}", article.Date.ToString())
.Replace("{time(O)}", article.Date.ToString("O"));
Action <Article, string, string> replaceLinks = (otherArticle, replace, conditional) =>
{
if (otherArticle != null)
{
response = response.Replace(replace, otherArticle.Url);
response.Replace(replace, "");
response.Replace(conditional, "");
}
else
{
var s = response.IndexOf(conditional, StringComparison.InvariantCulture);
if (s < 0)
{
return;
}
var e = response.IndexOf(")}", s + conditional.Length, StringComparison.InvariantCulture) + 2;
response = response.Remove(s, e - s);
}
};
replaceLinks(article.Next, "{next}", "{next??(");
replaceLinks(article.Previous, "{previous}", "{previous??(");
response = response.Replace("{content}", File.ReadAllText(path))
.Replace("{comments}", GenerateCommentHtml(tree));
client.WriteAndClose(response, "html", HttpStatusCode.OK);
}
else
{
client.Error(HttpStatusCode.NotFound);
}
}
