closes #5533

public/src/app.js

@@ -9,7 +9,9 @@ app.widgets = {};
 app.cacheBuster = null;
 
 (function () {
-	var showWelcomeMessage = !!utils.params().loggedin;
+	var params = utils.params();
+	var showWelcomeMessage = !!params.loggedin;
+	var registerMessage = params.register;
 
 	require(['benchpress'], function (Benchpress) {
 		Benchpress.setGlobal('config', config);
@@ -286,9 +288,12 @@ app.cacheBuster = null;
 				title: '[[global:welcome_back]] ' + app.user.username + '!',
 				message: '[[global:you_have_successfully_logged_in]]',
 			},
+			register: {
+				format: 'modal',
+			},
 		};
 
-		function showAlert(type) {
+		function showAlert(type, message) {
 			switch (messages[type].format) {
 			case 'alert':
 				app.alert({
@@ -301,7 +306,7 @@ app.cacheBuster = null;
 
 			case 'modal':
 				require(['translator'], function (translator) {
-					translator.translate(messages[type].message, function (translated) {
+					translator.translate(message || messages[type].message, function (translated) {
 						bootbox.alert({
 							title: messages[type].title,
 							message: translated,
@@ -318,6 +323,12 @@ app.cacheBuster = null;
 				showAlert('login');
 			});
 		}
+		if (registerMessage) {
+			$(document).ready(function () {
+				showAlert('register', decodeURIComponent(registerMessage));
+				registerMessage = false;
+			});
+		}
 	};
 
 	app.openChat = function (roomId, uid) {

src/controllers/authentication.js

@@ -57,18 +57,7 @@ authenticationController.register = function (req, res) {
 			user.isPasswordValid(userData.password, next);
 		},
 		function (next) {
-			user.shouldQueueUser(req.ip, next);
+			registerAndLoginUser(req, res, userData, next);
-		},
-		function (queue, next) {
-			res.locals.processLogin = true;	// set it to false in plugin if you wish to just register only
-			plugins.fireHook('filter:register.check', { req: req, res: res, userData: userData, queue: queue }, next);
-		},
-		function (data, next) {
-			if (data.queue) {
-				addToApprovalQueue(req, userData, next);
-			} else {
-				registerAndLoginUser(req, res, userData, next);
-			}
 		},
 	], function (err, data) {
 		if (err) {
@@ -108,7 +97,18 @@ function registerAndLoginUser(req, res, userData, callback) {
 			return res.json({ referrer: nconf.get('relative_path') + '/register/complete' });
 		},
 		function (next) {
-			user.create(userData, next);
+			user.shouldQueueUser(req.ip, next);
+		},
+		function (queue, next) {
+			res.locals.processLogin = true;	// set it to false in plugin if you wish to just register only
+			plugins.fireHook('filter:register.check', { req: req, res: res, userData: userData, queue: queue }, next);
+		},
+		function (data, next) {
+			if (data.queue) {
+				addToApprovalQueue(req, userData, callback);
+			} else {
+				user.create(userData, next);
+			}
 		},
 		function (_uid, next) {
 			uid = _uid;
@@ -155,9 +155,11 @@ authenticationController.registerComplete = function (req, res, next) {
 			return memo;
 		}, []);
 
-		var done = function () {
+		var done = function (err, data) {
 			delete req.session.registration;
-
+			if (!err && data && data.message) {
+				return res.redirect(nconf.get('relative_path') + '/?register=' + encodeURIComponent(data.message));
+			}
 			if (req.session.returnTo) {
 				res.redirect(req.session.returnTo);
 			} else {