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Add support for protocol relative YouTube URLs

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This commit is contained in:
Frédéric Guillot 2018-07-04 22:45:44 -07:00
parent 6d0dc451e4
commit de1a4aad30
2 changed files with 12 additions and 1 deletions
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3
reader/sanitizer/sanitizer.go
View file

@ -17,7 +17,7 @@ import (
)
var (
youtubeEmbedRegex = regexp.MustCompile(`http[s]?://www\.youtube\.com/embed/(.*)`)
youtubeEmbedRegex = regexp.MustCompile(`//www\.youtube\.com/embed/(.*)`)
)
// Sanitize returns safe HTML.
@ -291,6 +291,7 @@ func isBlacklistedResource(src string) bool {
func isValidIframeSource(src string) bool {
whitelist := []string{
"//www.youtube.com",
"http://www.youtube.com",
"https://www.youtube.com",
"https://www.youtube-nocookie.com",

10
reader/sanitizer/sanitizer_test.go
View file

@ -203,6 +203,16 @@ func TestReplaceYoutubeURLAlreadyReplaced(t *testing.T) {
}
}
func TestReplaceProtocolRelativeYoutubeURL(t *testing.T) {
input := `<iframe src="//www.youtube.com/embed/Bf2W84jrGqs" width="560" height="314" allowfullscreen="allowfullscreen"></iframe>`
expected := `<iframe src="https://www.youtube-nocookie.com/embed/Bf2W84jrGqs" width="560" height="314" allowfullscreen="allowfullscreen" sandbox="allow-scripts allow-same-origin"></iframe>`
output := Sanitize("http://example.org/", input)
if expected != output {
t.Errorf(`Wrong output: "%s" != "%s"`, expected, output)
}
}
func TestReplaceIframeURL(t *testing.T) {
input := `<iframe src="https://player.vimeo.com/video/123456?title=0&amp;byline=0"></iframe>`
expected := `<iframe src="https://player.vimeo.com/video/123456?title=0&amp;byline=0" sandbox="allow-scripts allow-same-origin"></iframe>`