From e4d4662074472106f6a2baeb202f242196565482 Mon Sep 17 00:00:00 2001
From: Hongcai Deng <admin@dhchouse.com>
Date: Thu, 10 Sep 2015 09:06:09 +0800
Subject: [PATCH] add regexp to restrict `<code class=""></code>`
---
modules/base/tool.go | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/modules/base/tool.go b/modules/base/tool.go
index 0fa564819..fa5202366 100644
--- a/modules/base/tool.go
+++ b/modules/base/tool.go
@@ -15,6 +15,7 @@ import (
"hash"
"html/template"
"math"
+ "regexp"
"strings"
"time"
@@ -26,11 +27,8 @@ import (
"github.com/gogits/gogs/modules/setting"
)
-var Sanitizer = bluemonday.UGCPolicy()
+var Sanitizer = bluemonday.UGCPolicy().AllowAttrs("class").Matching(regexp.MustCompile(`[\p{L}\p{N}\s\-_',:\[\]!\./\\\(\)&]*`)).OnElements("code")
-func init() {
- Sanitizer.AllowAttrs("class").OnElements("code")
-}
// Encode string to md5 hex value.
func EncodeMd5(str string) string {