Esempio n. 1
0
        public virtual Stream Connect(Uri uri, bool requireAuthentication) {
            // IIS starts python.exe processes lazily on the first incoming request, and will terminate them after a period
            // of inactivity, making it impossible to attach. So before trying to connect to the debugger, "ping" the website
            // via HTTP to ensure that we have something to connect to.
            try {
                var httpRequest = WebRequest.Create(new UriBuilder(uri) { Scheme = "http", Port = -1, Path = "/" }.Uri);
                httpRequest.Method = WebRequestMethods.Http.Head;
                httpRequest.Timeout = 5000;
                httpRequest.GetResponse().Dispose();
            } catch (WebException) {
                // If it fails or times out, just go ahead and try to connect anyway, and rely on normal error reporting path.
            }

            var webSocket = new ClientWebSocket();
            try {
                webSocket.ConnectAsync(uri, CancellationToken.None).GetAwaiter().GetResult();
                var stream = new WebSocketStream(webSocket, ownsSocket: true);
                webSocket = null;
                return stream;
            } catch (WebSocketException ex) {
                throw new ConnectionException(ConnErrorMessages.RemoteNetworkError, ex);
            } catch (IOException ex) {
                throw new ConnectionException(ConnErrorMessages.RemoteNetworkError, ex);
            } catch (PlatformNotSupportedException ex) {
                throw new ConnectionException(ConnErrorMessages.RemoteUnsupportedTransport, ex);
            } finally {
                if (webSocket != null) {
                    webSocket.Dispose();
                }
            }
        }
        public WebSocketNetworkClient(Uri uri) {
            // iisnode starts node.exe processes lazily on the first incoming request, and will terminate them after a period
            // of inactivity, making it impossible to attach. So before trying to connect to the debugger, "ping" the website
            // via HTTP to ensure that we have something to connect to.
            try {
                var httpRequest = WebRequest.Create(new UriBuilder(uri) { Scheme = "http", Port = -1, Path = "/" }.Uri);
                httpRequest.Method = WebRequestMethods.Http.Head;
                httpRequest.Timeout = 5000;
                httpRequest.GetResponse().Dispose();
            } catch (WebException) {
                // If it fails or times out, just go ahead and try to connect anyway, and rely on normal error reporting path.
            }

            _webSocket = new ClientWebSocket();
            _webSocket.ConnectAsync(uri, CancellationToken.None).GetAwaiter().GetResult();
            _stream = new WebSocketStream(_webSocket);
        }