return 500 error msg only if not Production mode

modules/context/api.go

@@ -69,6 +69,7 @@ type APIRedirect struct{}
 // If status is 500, also it prints error to log.
 func (ctx *APIContext) Error(status int, title string, obj interface{}) {
 	var message string
+
 	if err, ok := obj.(error); ok {
 		message = err.Error()
 	} else {
@@ -77,6 +78,10 @@ func (ctx *APIContext) Error(status int, title string, obj interface{}) {
 
 	if status == http.StatusInternalServerError {
 		log.ErrorWithSkip(1, "%s: %s", title, message)
+
+		if macaron.Env == macaron.PROD {
+			message = ""
+		}
 	}
 
 	ctx.JSON(status, APIError{
@@ -90,8 +95,13 @@ func (ctx *APIContext) Error(status int, title string, obj interface{}) {
 func (ctx *APIContext) InternalServerError(err error) {
 	log.ErrorWithSkip(1, "InternalServerError: %v", err)
 
+	var message string
+	if macaron.Env != macaron.PROD {
+		message = err.Error()
+	}
+
 	ctx.JSON(http.StatusInternalServerError, APIError{
-		Message: err.Error(),
+		Message: message,
 		URL:     setting.API.SwaggerURL,
 	})
 }