crash fix if topic has no posts, and check confirm obj

src/feed.js

@@ -38,13 +38,17 @@
 				}
 			}
 
+			var description = topicData.posts.length ? topicData.posts[0].content : '';
+			var image_url = topicData.posts.length ? topicData.posts[0].picture : '';
+			var author = topicData.posts.length ? topicData.posts[0].username : '';
+
 			var feed = new rss({
 					title: topicData.topic_name,
-					description: topicData.posts[0].content,
+					description: description,
 					feed_url: Feed.defaults.baseUrl + '/topics/' + tid + '.rss',
 					site_url: nconf.get('url') + '/topic/' + topicData.slug,
-					image_url: topicData.posts[0].picture,
-					author: topicData.posts[0].username,
+					image_url: image_url,
+					author: author,
 					ttl: Feed.defaults.ttl
 				}),
 				dateStamp;

src/user.js

@@ -926,11 +926,12 @@ var bcrypt = require('bcryptjs'),
 		confirm: function(code, callback) {
 			db.getObject('confirm:' + code, function(err, confirmObj) {
 				if (err) {
-					callback({
+					return callback({
 						status:'error'
 					});
-				} else {
-					if (confirmObj.uid && confirmObj.email) {
+				}
+
+				if (confirmObj && confirmObj.uid && confirmObj.email) {
 					db.setObjectField('email:confirmed', confirmObj.email, '1', function() {
 						callback({
 							status: 'ok'
@@ -941,7 +942,6 @@ var bcrypt = require('bcryptjs'),
 						status: 'not_ok'
 					});
 				}
-				}
 			});
 		}
 	};