Do you know any syncronous way to get IsAuthenticated status for currentRequest in client side via javascript?

I can get current user via client model, but it will be asynchronous.

this.authenticationPending = true;
this.isAuthenticated = false;

ExecuteOrDelayUntilScriptLoaded(Function.createDelegate(this, function() {
   var context = new SP.ClientContext.get_current();
   this.website = context.get_web();
   this.currentUser = website.get_currentUser();
      Function.createDelegate(this, function ()
             this.authenticationPending = false;
             this.isAuthenticated = this.currentUser.get_id() > 0;
          Function.createDelegate(this, function ()
             this.authenticationPending = false;
             this.isAuthenticated = false;
}), "sp.js");

After that I can get status, but I need to get status synchronous.


I'm assuming you're on a standard SharePoint page -- if so, you can use the _spPageContextInfo object's userId and userLoginName properties.

They come along for the ride when the page is rendered.

From my browser dev tools:


If you're dealing with an anonymous user those two properties will both be undefined so you can make your checks accordingly.

  • The second way is using spsecuritytrimmedcontrol to surround client script block to initialize javascript variable with authenticated status. – asolovyov Dec 6 '14 at 20:47
  • Heads up that if the page is currently anonymous but you have NTLM setup and the user's browser can authenticate, the userId attribute will get populated when you call _spPageContextInfo.userId. This may lead to unexpected/undesired behavior. – Lane Goolsby Apr 20 '15 at 15:25

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