closes #3788

src/messaging.js

@@ -374,12 +374,8 @@ var db = require('./database'),
 	};
 
 	Messaging.canMessage = function(fromUid, toUid, callback) {
-		if (parseInt(meta.config.disableChat) === 1) {
-			return callback(new Error('[[error:chat-disabled]]'));
-		} else if (toUid === fromUid) {
-			return callback(new Error('[[error:cant-chat-with-yourself]]'));
-		} else if (!fromUid) {
-			return callback(new Error('[[error:not-logged-in]]'));
+		if (parseInt(meta.config.disableChat) === 1 || !fromUid || toUid === fromUid) {
+			return callback(null, false);
 		}
 
 		async.waterfall([
@@ -388,17 +384,17 @@ var db = require('./database'),
 			},
 			function (exists, next) {
 				if (!exists) {
-					return next(new Error('[[error:no-user]]'));
+					return callback(null, false);
 				}
 				user.getUserFields(fromUid, ['banned', 'email:confirmed'], next);
 			},
 			function (userData, next) {
 				if (parseInt(userData.banned, 10) === 1) {
-					return next(new Error('[[error:user-banned]]'));
+					return callback(null, false);
 				}
 
 				if (parseInt(meta.config.requireEmailConfirmation, 10) === 1 && parseInt(userData['email:confirmed'], 10) !== 1) {
-					return next(new Error('[[error:email-not-confirmed-chat]]'));
+					return callback(null, false);
 				}
 
 				user.getSettings(toUid, next);

src/routes/index.js

@@ -175,7 +175,7 @@ function handle404(app, middleware) {
 }
 
 function handleErrors(app, middleware) {
-	app.use(function(err, req, res) {
+	app.use(function(err, req, res, next) {
 		if (err.code === 'EBADCSRFTOKEN') {
 			winston.error(req.path + '\n', err.message);
 			return res.sendStatus(403);
@@ -190,7 +190,7 @@ function handleErrors(app, middleware) {
 		res.status(err.status || 500);
 
 		if (res.locals.isAPI) {
-			return res.json({path: req.path, error: err.message});
+			res.json({path: req.path, error: err.message});
 		} else {
 			middleware.buildHeader(req, res, function() {
 				res.render('500', {path: req.path, error: err.message});

src/views/500-embed.tpl

@@ -0,0 +1,9 @@
+<script type="text/tpl" data-template="500">
+<div class="alert alert-danger">
+	<strong>[[global:500.title]]</strong>
+	<p>[[global:500.message]]</p>
+	<p>{path}</p>
+	<!-- IF error --><p>{error}</p><!-- ENDIF error -->
+
+</div>
+</script>

src/views/500.tpl

@@ -1,9 +1,6 @@
-<script type="text/tpl" data-template="500">
 <div class="alert alert-danger">
 	<strong>[[global:500.title]]</strong>
 	<p>[[global:500.message]]</p>
 	<p>{path}</p>
 	<!-- IF error --><p>{error}</p><!-- ENDIF error -->
-
 </div>
-</script>