closed #2321

src/messaging.js

@@ -292,6 +292,34 @@ var db = require('./database'),
 		}, 1000*60);	// wait 60s before sending
 	};
 
+	Messaging.canMessage = function(fromUid, toUid, callback) {
+		async.waterfall([
+			function(next) {
+				// Check if the sending user is an admin
+				user.isAdministrator(fromUid, function(err, isAdmin) {
+					next(err || isAdmin);
+				});
+			},
+			function(next) {
+				// Retrieve the recipient's user setting
+				user.getSettings(toUid, function(err, settings) {
+					next(err || !settings.restrictChat);
+				});
+			},
+			function(next) {
+				// Does toUid follow fromUid?
+				user.isFollowing(toUid, fromUid, next);
+			}
+		], function(err, allowed) {
+			// Handle premature returns
+			if (err === true) {
+				return callback(undefined, true);
+			}
+
+			callback.apply(this, arguments);
+		});
+	}
+
 	function sendNotifications(fromuid, touid, messageObj, callback) {
 		// todo #1798 -- this should check if the user is in room `chat_{uidA}_{uidB}` instead, see `Sockets.uidInRoom(uid, room);`
 		if (!websockets.isUserOnline(touid)) {