From 8331c43a18c2a96395489d2e685ab843da4ee644 Mon Sep 17 00:00:00 2001
From: Simone Gotti <simone.gotti@gmail.com>
Date: Mon, 13 May 2019 14:20:31 +0200
Subject: [PATCH] util errors: add ErrUnauthorized

---
 internal/util/errors.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/internal/util/errors.go b/internal/util/errors.go
index 94715a5..945e342 100644
--- a/internal/util/errors.go
+++ b/internal/util/errors.go
@@ -112,3 +112,22 @@ func IsErrForbidden(err error) bool {
 	_, ok := err.(*ErrForbidden)
 	return ok
 }
+
+// ErrUnauthorized represent an error caused by an unauthorized request
+// it's used to differentiate an internal error from an user error
+type ErrUnauthorized struct {
+	Err error
+}
+
+func (e *ErrUnauthorized) Error() string {
+	return e.Err.Error()
+}
+
+func NewErrUnauthorized(err error) *ErrUnauthorized {
+	return &ErrUnauthorized{Err: err}
+}
+
+func IsErrUnauthorized(err error) bool {
+	_, ok := err.(*ErrUnauthorized)
+	return ok
+}