merge

1 files changed, 4 insertions, 1 deletions

diff --git a/server/lib/util.js b/server/lib/util.js
index 87e2d54..791d3e2 100644
--- a/server/lib/util.js
+++ b/server/lib/util.js
@@ -8,7 +8,6 @@ var nonAlphanumerics = new RegExp('[^-_a-zA-Z0-9]', 'g')
 var consecutiveDashes = new RegExp("-+", 'g')
 var entities = new RegExp("[<>&]", 'g')
 
-
 var util = {}
 
 util.trim = function (s){ return (s || "").replace(whitespaceHead,"").replace(whitespaceTail,"") }
@@ -19,6 +18,9 @@ util.slugify = function (s){
 util.sanitize = function (s){
 	return (s || "").replace(entities, "")
 }
+util.escape = function (s){
+	return (s || "").replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;")
+}
 util.capitalize = function (s) {
 	return (s || "").split(" ").map(util.capitalizeWord).join(" ");
 }
@@ -46,6 +48,7 @@ util.ip2num = function(dot) {
 }
 
 util.num2ip = function(num) {
+  if (! num) return ""
 	var d = num % 256;
 	for (var i = 3; i > 0; i--) { 
 		num = Math.floor(num/256);