public Session(SessionManager sessionContainer, string sessionId, Receiver receiver, SockJSOptions options)
{
_clientLock = new ReaderWriterLockSlim();
_sessionManager = sessionContainer;
_sessionId = sessionId;
_options = options;
_receiver = receiver;
_sendState = SendOpen;
_receiveState = ReceiveNone;
_receives = new ConcurrentQueue<PendingReceive>();
_receivesSem = new SemaphoreSlim(0);
_sendDequeueSem = new SemaphoreSlim(1);
_sendsSem = new SemaphoreSlim(0);
_sendEnqueueSem = new SemaphoreSlim(1);
_sends = new ConcurrentQueue<PendingSend>();
}
public SessionManager(PathString prefix, RequestDelegate next, SockJSOptions options)
{
_prefix = prefix;
_next = next;
_options = options;
_rewritePath = options.RewritePath.HasValue ? options.RewritePath : _prefix;
_iframeContent = string.Format(s_iFrameTemplate, options.JSClientLibraryUrl);
_iframeETag = CalculateETag(_iframeContent);
_routes = new List<Route>(new[]
{
new Route("GET", TypeEmpty, false, "", HandleGreetingAsync),
new Route("GET", TypeTop, true, "iframe[0-9-.a-z_]*.html", HandleIFrameAsync),
new Route("GET", TypeTop, false, "info", HandleInfoAsync),
new Route("OPTIONS", TypeTop, false, "info", HandleOptionsGetResourceAsync),
new Route("GET", TypeSession, false, "jsonp", HandleJsonpAsync),
new Route("POST", TypeSession, false, "jsonp_send", HandleJsonpSendAsync),
new Route("POST", TypeSession, false, "xhr", HandleXhrAsync),
new Route("OPTIONS", TypeSession, false, "xhr", HandleOptionsPostResourceAsync),
new Route("POST", TypeSession, false, "xhr_send", HandleXhrSendAsync),
new Route("OPTIONS", TypeSession, false, "xhr_send", HandleOptionsPostResourceAsync),
new Route("POST", TypeSession, false, "xhr_streaming", HandleXhrStreamingAsync),
new Route("OPTIONS", TypeSession, false, "xhr_streaming", HandleOptionsPostResourceAsync),
new Route("GET", TypeSession, false, "eventsource", HandleEventSourceAsync),
new Route("GET", TypeSession, false, "htmlfile", HandleHtmlFileAsync),
});
if (_options.UseWebSocket)
{
_routes.AddRange(new[] {
new Route("GET", TypeSession, false, "websocket", HandleSockJSWebSocketAsync),
new Route("GET", TypeTop, false, "websocket", HandleWebSocketAsync),
});
}
else
{
_routes.AddRange(new[] {
new Route("GET", TypeSession, false, "websocket", HandleNoWebSocketAsync),
new Route("GET", TypeTop, false, "websocket", HandleNoWebSocketAsync),
});
}
}
public static void UseBroadcast(this IApplicationBuilder app, PathString path, SockJSOptions options = null)
{
app.UseSockJS(path, options ?? new SockJSOptions());
app.UseMiddleware<BroadcastMiddleware>(path);
}
public static void UseSockJS(this IApplicationBuilder app, PathString prefix, SockJSOptions options)
{
app.Use(next => new SessionManager(prefix, next, options).Invoke);
}