Merge pull request moby#5321 from morpheu/ignore_invalid_scope

util/resolver: ignore invalid (empty) scope

Author: tonistiigi

util/resolver/authorizer.go

@@ -450,6 +450,9 @@ func parseScopes(s []string) scopes {
 	// https://docs.docker.com/registry/spec/auth/scope/
 	m := map[string]map[string]struct{}{}
 	for _, scopeStr := range s {
+		if scopeStr == "" {
+			return nil
+		}
 		// The scopeStr may have strings that contain multiple scopes separated by a space.
 		for _, scope := range strings.Split(scopeStr, " ") {
 			parts := strings.SplitN(scope, ":", 3)

util/resolver/authorizer_test.go

@@ -11,6 +11,11 @@ func TestParseScopes(t *testing.T) {
 		input    []string
 		expected scopes
 	}{
+		{
+			name:     "InvalidScope",
+			input:    []string{""},
+			expected: nil,
+		},
 		{
 			name: "SeparateStrings",
 			input: []string{