WebSocketException: Not GET request

[qblook]

trafficstars

Hello! I have a next exception when client try to connect to listener by wss:

Api.Hubs.Private.WebSocket.WebSocketHubPrivate+<AcceptWebSocketClientAsync>c__async0: WebSocket Stop accepting clients vtortola.WebSockets.WebSocketException: Not GET request
  at vtortola.WebSockets.WebSocketHandshaker.ParseGET (System.String line, vtortola.WebSockets.WebSocketHandshake handshake) [0x0001f] in <3efbcd29638a4658ba36943efbb4aba5>:0 
  at vtortola.WebSockets.WebSocketHandshaker.ReadHttpRequest (System.IO.Stream clientStream, vtortola.WebSockets.WebSocketHandshake handshake) [0x0001a] in <3efbcd29638a4658ba36943efbb4aba5>:0 
  at vtortola.WebSockets.WebSocketHandshaker+<HandshakeAsync>d__0.MoveNext () [0x00043] in <3efbcd29638a4658ba36943efbb4aba5>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <8f2c484307284b51944a1a13a14c0266>:0 
  at vtortola.WebSockets.WebSocketListener+<AcceptWebSocketAsync>d__4.MoveNext () [0x000be] in <3efbcd29638a4658ba36943efbb4aba5>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0004e] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in <8f2c484307284b51944a1a13a14c0266>:0 
  at Api.Hubs.Private.WebSocket.WebSocketHubPrivate+<AcceptWebSocketClientAsync>c__async0.MoveNext () [0x000d4] in <7cc61b8be3914d60aa0c0c7123236ba4>:0 

Code for creating listener was used from examples. SSL feature enabling code:

var options = new WebSocketListenerOptions () {
  NegotiationQueueCapacity = Convert.ToInt32(ConfigurationManager.AppSettings["Api.Notifications.Private.WebSocket.NegotiationQueueCapacity"]),
  ParallelNegotiations = Convert.ToInt32(ConfigurationManager.AppSettings["Api.Notifications.Private.WebSocket.ParallelNegotiations"]),
  SubProtocols = new [] { "text" }
			};

server = new WebSocketListener (endpoint, options); 
var rfc6455 = new vtortola.WebSockets.Rfc6455.WebSocketFactoryRfc6455 (server);
server.Standards.RegisterStandard (rfc6455);


var certPath = ConfigurationManager.AppSettings ["Api.Notifications.Private.WebSocket.Certificate.File"].ToString();
var certPass = ConfigurationManager.AppSettings ["Api.Notifications.Private.WebSocket.Certificate.Password"].ToString();
certificate = new X509Certificate2(certPath, certPass);

server.ConnectionExtensions.RegisterExtension (new WebSocketSecureConnectionExtension (certificate));

Thank You in advance! // alex

[vtortola]

Hi,

Is it a self-signed certificate? Does it work when you use it with HTTPS?

Cheers.

[qblook]

Hello,

yes, this is a self-signed certificate. Apache httpd ssl working with this sertificate (converted to pem/key). For Web-Socket hub in the project i use pfx (p12) format and password.

// sincerely, alex

[vtortola]

The browser needs the user to accept that certificate, are you using it for HTTPS as well in the same page that is initiating the WebSocket connection?

[qblook]

Yes, in opening the page browser (chrome) write about self-signed certificate ( and allow to select "Continue with this certificate..". I press it and continue to working with page. But web-socket can't connect until i open this connection (wss://....) address directly in web-browser and select again "Continue with this certificate.., and only after it and reloading page web-socket connection is established and in status 101. But in the server logs still have this exception - "Not GET Request" :( And as result - can't send notifications by web-socket chanel from server to client

// sincerely, alex

[vtortola]

Have you tried with these approaches? https://stackoverflow.com/questions/18462064/associate-a-private-key-with-the-x509certificate2-class-in-net/24863777#24863777

[qblook]

Yes, i convert *.pem certificate to *.p12 using openssl unix-utility

But now i see that it's working without any problems if i use not self-signed certificate.. So it can be certificate problem. For converting normal certificate i have used same way.

It's possible if problem with certificate, WebSocketLibrary have a wrong request string? And throw this exception: https://github.com/vtortola/WebSocketListener/blob/master/vtortola.WebSockets/Http/WebSocketHandshaker.cs#L179

// sincerely, alex

[netvillage]

fyi. I get this when my certificate expires