fix crash when you go to /topics/nonexistant

public/src/templates.js

@@ -40,6 +40,7 @@ var templates = {};
 		for (var t in templatesToLoad) {
 			(function(file) {
 				$.get('/templates/' + file + '.tpl?v=' + timestamp, function(html) {
+		
 					var template = function() {
 						this.toString = function() {
 							return this.html;
@@ -168,6 +169,12 @@ function load_template(callback, url, template) {
 
 	jQuery.get(API_URL + url, function(data) {
 
+		console.log(data);
+		if(!data) {
+			window.location.href = '/403';
+			return;
+		}
+
 		var tpl = templates.get_custom_map(url);
 		
 		if (tpl == false && !templates[url]) {

src/posts.js

@@ -12,6 +12,7 @@ marked.setOptions({
 (function(Posts) {
 
 	Posts.get = function(callback, tid, current_user, start, end) {
+
 		if (start == null) start = 0;
 		if (end == null) end = start + 10;
 
@@ -75,6 +76,11 @@ marked.setOptions({
 		RDB.lrange('tid:' + tid + ':posts', start, end, function(err, pids) {
 			RDB.handle(err);
 
+			if(pids.length === 0){
+				callback(false);
+				return;
+			}
+			
 			var content = [], uid = [], timestamp = [], pid = [], post_rep = [], editor = [], editTime = [], deleted = [];
 
 			for (var i=0, ii=pids.length; i<ii; i++) {

src/topics.js

@@ -20,6 +20,12 @@ var	RDB = require('./redis.js'),
 		var range_var = (category_id) ? 'categories:' + category_id + ':tid'  : 'topics:tid';
 
 		RDB.smembers(range_var, function(err, tids) {
+			
+			if(tids.length === 0) {
+				callback(false);
+				return;
+			}
+
 			var title = [],
 				uid = [],
 				timestamp = [],

src/webserver.js

@@ -154,26 +154,46 @@ var express = require('express'),
 				break;
 			case 'topic' :
 					posts.get(function(data) {
+						if(!data) {
+							res.send(false);
+							return;
+						}
 						res.send(JSON.stringify(data));
 					}, req.params.id, (req.user) ? req.user.uid : 0);
 				break;
 			case 'category' :
 					topics.get(function(data) {
+						if(!data) {
+							res.send(false);
+							return;
+						}
 						res.send(JSON.stringify(data));
 					}, req.params.id, (req.user) ? req.user.uid : 0);
 				break;
 			case 'latest' :
 					topics.get(function(data) {
+						if(!data) {
+							res.send(false);
+							return;
+						}
 						res.send(JSON.stringify(data));
 					});
 				break;
 			case 'popular' :
 					topics.get(function(data) {
+						if(!data) {
+							res.send(false);
+							return;
+						}
 						res.send(JSON.stringify(data));
 					});
 				break;
 			case 'active' :
 					topics.get(function(data) {
+						if(!data) {
+							res.send(false);
+							return;
+						}
 						res.send(JSON.stringify(data));
 					});
 				break;