Initial QSfera import

Server/vendor/github.com/libregraph/lico/identity/context.go

@@ -0,0 +1,44 @@
+/*
+ * 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 identity
+
+import (
+	"context"
+)
+
+// key is an unexported type for keys defined in this package.
+// This prevents collisions with keys defined in other packages.
+type key int
+
+// authRecordKey is the key for identity.AuthRecord in Contexts. It is
+// unexported; clients use identity.NewContext and identity.FromContext
+// instead of using this key directly.
+const (
+	authRecordKey key = iota
+)
+
+// NewContext returns a new Context that carries value auth.
+func NewContext(ctx context.Context, auth AuthRecord) context.Context {
+	return context.WithValue(ctx, authRecordKey, auth)
+}
+
+// FromContext returns the AuthRecord value stored in ctx, if any.
+func FromContext(ctx context.Context) (AuthRecord, bool) {
+	auth, ok := ctx.Value(authRecordKey).(AuthRecord)
+	return auth, ok
+}