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Backport noopener links (from commit 670777b536)

pull/570/head
Tom Forbes 2019-09-22 15:03:03 +01:00
parent a925a152c1
commit 41eb1fe8a7
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GPG Key ID: 1AA2FDB3A6E25D95
2 changed files with 26 additions and 0 deletions
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7
html.go
View File

@ -32,6 +32,7 @@ const (
HTML_SAFELINK // only link to trusted protocols
HTML_NOFOLLOW_LINKS // only link with rel="nofollow"
HTML_NOREFERRER_LINKS // only link with rel="noreferrer"
HTML_NOOPENER_LINKS // only link with rel="noopener"
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)
@ -445,6 +446,9 @@ func (options *Html) AutoLink(out *bytes.Buffer, link []byte, kind int) {
if options.flags&HTML_NOREFERRER_LINKS != 0 && !isRelativeLink(link) {
relAttrs = append(relAttrs, "noreferrer")
}
if options.flags&HTML_NOOPENER_LINKS != 0 && !isRelativeLink(link) {
relAttrs = append(relAttrs, "noopener")
}
if len(relAttrs) > 0 {
out.WriteString(fmt.Sprintf("\" rel=\"%s", strings.Join(relAttrs, " ")))
}
@ -559,6 +563,9 @@ func (options *Html) Link(out *bytes.Buffer, link []byte, title []byte, content
if options.flags&HTML_NOREFERRER_LINKS != 0 && !isRelativeLink(link) {
relAttrs = append(relAttrs, "noreferrer")
}
if options.flags&HTML_NOOPENER_LINKS != 0 && !isRelativeLink(link) {
relAttrs = append(relAttrs, "noopener")
}
if len(relAttrs) > 0 {
out.WriteString(fmt.Sprintf("\" rel=\"%s", strings.Join(relAttrs, " ")))
}

19
inline_test.go
View File

@ -624,6 +624,25 @@ func TestRelAttrLink(t *testing.T) {
}
doTestsInlineParam(t, nofollownoreferrerTests, Options{}, HTML_SAFELINK|HTML_NOFOLLOW_LINKS|HTML_NOREFERRER_LINKS,
HtmlRendererParameters{})
var noopenerTests = []string{
"[foo](http://bar.com/foo/)\n",
"<p><a href=\"http://bar.com/foo/\" rel=\"noopener\">foo</a></p>\n",
"[foo](/bar/)\n",
"<p><a href=\"/bar/\">foo</a></p>\n",
}
doTestsInlineParam(t, noopenerTests, Options{}, HTML_SAFELINK|HTML_NOOPENER_LINKS, HtmlRendererParameters{})
var nofollownoreferrernoopenerTests = []string{
"[foo](http://bar.com/foo/)\n",
"<p><a href=\"http://bar.com/foo/\" rel=\"nofollow noreferrer noopener\">foo</a></p>\n",
"[foo](/bar/)\n",
"<p><a href=\"/bar/\">foo</a></p>\n",
}
doTestsInlineParam(t, nofollownoreferrernoopenerTests, Options{},
HTML_SAFELINK|HTML_NOOPENER_LINKS|HTML_NOFOLLOW_LINKS|HTML_NOREFERRER_LINKS, HtmlRendererParameters{})
}
func TestHrefTargetBlank(t *testing.T) {