supports local file system object storage and use it as the default avatar provider

pkg/utils/avatar.go

@@ -7,6 +7,15 @@ import (
 
 const gravatarUrlFormat = "https://www.gravatar.com/avatar/%s"
 
+// GetInternalAvatarUrl returns the internal avatar url
+func GetInternalAvatarUrl(uid int64, avatarFileExtesion string, webRootUrl string) string {
+	if avatarFileExtesion == "" {
+		return ""
+	}
+
+	return fmt.Sprintf("%savatar/%d.%s", webRootUrl, uid, avatarFileExtesion)
+}
+
 // GetGravatarUrl returns the Gravatar url according to the specified user email address
 func GetGravatarUrl(email string) string {
 	email = strings.TrimSpace(email)