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Proxify images defined in srcset attribute

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This commit is contained in:
Frédéric Guillot 2020-10-07 21:57:18 -07:00
parent 37bc451741
commit 997006cdd7
2 changed files with 83 additions and 0 deletions
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46
template/functions_test.go
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@ -315,6 +315,52 @@ func TestProxyFilterWithHttpsInvalid(t *testing.T) {
}
}
func TestProxyFilterWithSrcset(t *testing.T) {
os.Clearenv()
os.Setenv("PROXY_IMAGES", "all")
var err error
parser := config.NewParser()
config.Opts, err = parser.ParseEnvironmentVariables()
if err != nil {
t.Fatalf(`Parsing failure: %v`, err)
}
r := mux.NewRouter()
r.HandleFunc("/proxy/{encodedURL}", func(w http.ResponseWriter, r *http.Request) {}).Name("proxy")
input := `<p><img src="http://website/folder/image.png" srcset="http://website/folder/image2.png 656w, http://website/folder/image3.png 360w" alt="test"></p>`
expected := `<p><img src="/proxy/aHR0cDovL3dlYnNpdGUvZm9sZGVyL2ltYWdlLnBuZw==" srcset="/proxy/aHR0cDovL3dlYnNpdGUvZm9sZGVyL2ltYWdlMi5wbmc= 656w, /proxy/aHR0cDovL3dlYnNpdGUvZm9sZGVyL2ltYWdlMy5wbmc= 360w" alt="test"/></p>`
output := imageProxyFilter(r, input)
if expected != output {
t.Errorf(`Not expected output: got %s`, output)
}
}
func TestProxyFilterWithPictureSource(t *testing.T) {
os.Clearenv()
os.Setenv("PROXY_IMAGES", "all")
var err error
parser := config.NewParser()
config.Opts, err = parser.ParseEnvironmentVariables()
if err != nil {
t.Fatalf(`Parsing failure: %v`, err)
}
r := mux.NewRouter()
r.HandleFunc("/proxy/{encodedURL}", func(w http.ResponseWriter, r *http.Request) {}).Name("proxy")
input := `<picture><source srcset="http://website/folder/image2.png 656w, http://website/folder/image3.png 360w"></picture>`
expected := `<picture><source srcset="/proxy/aHR0cDovL3dlYnNpdGUvZm9sZGVyL2ltYWdlMi5wbmc= 656w, /proxy/aHR0cDovL3dlYnNpdGUvZm9sZGVyL2ltYWdlMy5wbmc= 360w"/></picture>`
output := imageProxyFilter(r, input)
if expected != output {
t.Errorf(`Not expected output: got %s`, output)
}
}
func TestFormatFileSize(t *testing.T) {
scenarios := []struct {
input int64