fix var name

Author: wxiaoguang

modules/httplib/url.go

@@ -77,7 +77,7 @@ func GuessCurrentHostURL(ctx context.Context) string {
 	reqScheme := getRequestScheme(req)
 	if reqScheme == "" {
 		// if no reverse proxy header, try to use "Host" header for absolute URL
-		if setting.PublicURLGeneration == setting.PublicURLAuto && req.Host != "" {
+		if setting.PublicURLDetection == setting.PublicURLAuto && req.Host != "" {
 			return util.Iif(req.TLS == nil, "http://", "https://") + req.Host
 		}
 		// fall back to default AppURL

modules/httplib/url_test.go

@@ -46,7 +46,7 @@ func TestGuessCurrentHostURL(t *testing.T) {
 	headersWithProto := http.Header{"X-Forwarded-Proto": {"https"}}
 
 	t.Run("Legacy", func(t *testing.T) {
-		defer test.MockVariableValue(&setting.PublicURLGeneration, setting.PublicURLLegacy)()
+		defer test.MockVariableValue(&setting.PublicURLDetection, setting.PublicURLLegacy)()
 
 		assert.Equal(t, "http://cfg-host", GuessCurrentHostURL(t.Context()))
 
@@ -60,7 +60,7 @@ func TestGuessCurrentHostURL(t *testing.T) {
 	})
 
 	t.Run("Auto", func(t *testing.T) {
-		defer test.MockVariableValue(&setting.PublicURLGeneration, setting.PublicURLAuto)()
+		defer test.MockVariableValue(&setting.PublicURLDetection, setting.PublicURLAuto)()
 
 		assert.Equal(t, "http://cfg-host", GuessCurrentHostURL(t.Context()))