cmd/syncthing: Add LDAP authentication for GUI (fixes #5163) (#5169)

lib/config/authmode.go

@@ -0,0 +1,41 @@
+// Copyright (C) 2018 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
+package config
+
+type AuthMode int
+
+const (
+	AuthModeStatic AuthMode = iota // default is static
+	AuthModeLDAP
+)
+
+func (t AuthMode) String() string {
+	switch t {
+	case AuthModeStatic:
+		return "static"
+	case AuthModeLDAP:
+		return "ldap"
+	default:
+		return "unknown"
+	}
+}
+
+func (t AuthMode) MarshalText() ([]byte, error) {
+	return []byte(t.String()), nil
+}
+
+func (t *AuthMode) UnmarshalText(bs []byte) error {
+	switch string(bs) {
+	case "ldap":
+		*t = AuthModeLDAP
+	case "static":
+		*t = AuthModeStatic
+	default:
+		*t = AuthModeStatic
+	}
+	return nil
+}