Init displayName according LTI

server/lib/Room.js

@@ -405,6 +405,27 @@ class Room extends EventEmitter
 
 			case 'join':
 			{
+
+				try
+				{
+					if (peer.socket.handshake.session.passport.user.displayName)
+					{
+						this._notification(
+							peer.socket,
+							'changeDisplayname',
+							{
+								peerId         : peer.id,
+								displayName    : peer.socket.handshake.session.passport.user.displayName,
+								oldDisplayName : ''
+							},
+							true
+						);
+					}
+				}
+				catch (error)
+				{
+					logger.error(error);
+				}
 				// Ensure the Peer is not already joined.
 				if (peer.joined)
 					throw new Error('Peer already joined');

server/server.js

@@ -390,9 +390,14 @@ async function runHttpsServer()
 	{
 		if (req.secure)
 		{
-			if (req.isAuthenticated && req.user && req.user._lti)
+			const ltiURL = new URL(req.protocol + '://' + req.get('host') + req.originalUrl);
+
+			if (req.isAuthenticated && req.user && req.user.displayName && !ltiURL.searchParams.get('displayName'))
 			{
-				logger.error(req.user._lti);
+
+
+				ltiURL.searchParams.append('displayName', req.user.displayName);
+				res.redirect(ltiURL);
 			}
 
 			return next();