Initial QSfera import

Server/vendor/github.com/libregraph/lico/oidc/provider/subject.go

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2017-2019 Kopano and its licensors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package provider
+
+import (
+	"errors"
+
+	konnect "github.com/libregraph/lico"
+	"github.com/libregraph/lico/identity"
+)
+
+// PublicSubjectFromAuth creates the provideds auth Subject value with the
+// accociated provider. This subject can be used as URL safe value to uniquely
+// identify the provided auth user with remote systems.
+func (p *Provider) PublicSubjectFromAuth(auth identity.AuthRecord) (string, error) {
+	authorizedScopes := auth.AuthorizedScopes()
+	if ok, _ := authorizedScopes[konnect.ScopeRawSubject]; ok {
+		// Return raw subject as is when with ScopeRawSubject.
+		user := auth.User()
+		if user == nil {
+			return "", errors.New("no user")
+		}
+
+		return user.Raw(), nil
+	}
+
+	return auth.Subject(), nil
+}