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Merge pull request #155 from beyang/master

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add rel="noreferrer" option
This commit is contained in:
Vytautas Šaltenis 2015-03-15 19:31:50 +02:00
commit 6928e11ecd
2 changed files with 42 additions and 5 deletions
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21
html.go
View File

@ -31,6 +31,7 @@ const (
HTML_SKIP_LINKS // skip all links
HTML_SAFELINK // only link to trusted protocols
HTML_NOFOLLOW_LINKS // only link with rel="nofollow"
HTML_NOREFERRER_LINKS // only link with rel="noreferrer"
HTML_HREF_TARGET_BLANK // add a blank target
HTML_TOC // generate a table of contents
HTML_OMIT_CONTENTS // skip the main contents (for a standalone table of contents)
@ -429,9 +430,17 @@ func (options *Html) AutoLink(out *bytes.Buffer, link []byte, kind int) {
entityEscapeWithSkip(out, link, skipRanges)
var relAttrs []string
if options.flags&HTML_NOFOLLOW_LINKS != 0 && !isRelativeLink(link) {
out.WriteString("\" rel=\"nofollow")
relAttrs = append(relAttrs, "nofollow")
}
if options.flags&HTML_NOREFERRER_LINKS != 0 && !isRelativeLink(link) {
relAttrs = append(relAttrs, "noreferrer")
}
if len(relAttrs) > 0 {
out.WriteString(fmt.Sprintf("\" rel=\"%s", strings.Join(relAttrs, " ")))
}
// blank target only add to external link
if options.flags&HTML_HREF_TARGET_BLANK != 0 && !isRelativeLink(link) {
out.WriteString("\" target=\"_blank")
@ -535,9 +544,17 @@ func (options *Html) Link(out *bytes.Buffer, link []byte, title []byte, content
out.WriteString("\" title=\"")
attrEscape(out, title)
}
var relAttrs []string
if options.flags&HTML_NOFOLLOW_LINKS != 0 && !isRelativeLink(link) {
out.WriteString("\" rel=\"nofollow")
relAttrs = append(relAttrs, "nofollow")
}
if options.flags&HTML_NOREFERRER_LINKS != 0 && !isRelativeLink(link) {
relAttrs = append(relAttrs, "noreferrer")
}
if len(relAttrs) > 0 {
out.WriteString(fmt.Sprintf("\" rel=\"%s", strings.Join(relAttrs, " ")))
}
// blank target only add to external link
if options.flags&HTML_HREF_TARGET_BLANK != 0 && !isRelativeLink(link) {
out.WriteString("\" target=\"_blank")

26
inline_test.go
View File

@ -445,15 +445,35 @@ func TestInlineLink(t *testing.T) {
}
func TestNofollowLink(t *testing.T) {
var tests = []string{
func TestRelAttrLink(t *testing.T) {
var nofollowTests = []string{
"[foo](http://bar.com/foo/)\n",
"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow\">foo</a></p>\n",
"[foo](/bar/)\n",
"<p><a href=\"/bar/\">foo</a></p>\n",
}
doTestsInlineParam(t, tests, 0, HTML_SAFELINK|HTML_NOFOLLOW_LINKS,
doTestsInlineParam(t, nofollowTests, 0, HTML_SAFELINK|HTML_NOFOLLOW_LINKS,
HtmlRendererParameters{})
var noreferrerTests = []string{
"[foo](http://bar.com/foo/)\n",
"<p><a href=\"http://bar.com/foo/\" rel=\"noreferrer\">foo</a></p>\n",
"[foo](/bar/)\n",
"<p><a href=\"/bar/\">foo</a></p>\n",
}
doTestsInlineParam(t, noreferrerTests, 0, HTML_SAFELINK|HTML_NOREFERRER_LINKS,
HtmlRendererParameters{})
var nofollownoreferrerTests = []string{
"[foo](http://bar.com/foo/)\n",
"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow noreferrer\">foo</a></p>\n",
"[foo](/bar/)\n",
"<p><a href=\"/bar/\">foo</a></p>\n",
}
doTestsInlineParam(t, nofollownoreferrerTests, 0, HTML_SAFELINK|HTML_NOFOLLOW_LINKS|HTML_NOREFERRER_LINKS,
HtmlRendererParameters{})
}